Collection method, user interface, and related apparatus

Abstract

Disclosed in the present application are a collection method, a user interface, and a related apparatus. The method can, in the process of collecting a PPG signal of a certain region on a finger, output prompt information. By means of the prompt information, the user is guided to adjust the contact region between the finger and a PPG module to a position with higher signal quality, so that an electronic device obtains a PPG signal with higher signal quality. It can be learned that the method fully considers impact of blood vessel distribution and a state of each region of the skin on PPG signal quality, and can dynamically adjust the contact position between the finger and the PPG module when the user measures the PPG signal, thereby ensuring that the electronic device can collect a PPG signal with relatively high signal quality as much as possible.

Description

Collection method, user interface and related apparatus

[0001] The present application claims priority to the Chinese patent application No. 202410877127.5, filed on July 1, 2024, entitled "Collection method, user interface and related apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of terminal and computer, and particularly relates to a collection method, a user interface and related apparatus. BACKGROUND

[0003] Photoplethysmography (PPG) is a technology that uses an optical sensor to sense the change in hemoglobin concentration flowing inside the blood vessels on the surface of the human body, thereby obtaining the pulse of the human body. More and more devices are now equipped with PPG modules to collect PPG signals, and then use the PPG signals to analyze physiological parameters such as blood oxygen, heart rate, respiratory rate, blood pressure, blood sugar, muscle oxygen, vascular resistance, and brain oxygen of the user. SUMMARY

[0004] The present application provides a collection method, a user interface and related apparatus, which realizes guiding a user to adjust a region on a finger for collecting a PPG signal, so that an electronic device can obtain a PPG signal with higher signal quality.

[0005] In a first aspect, an embodiment of the present application provides a collection method, the method being applied to an electronic device, and the method comprising: collecting a PPG signal of a first region on a first finger; outputting first prompt information, the first prompt information being used to prompt a user to adjust a region on the first finger for collecting a PPG signal; and collecting a PPG signal of a second region on the first finger, the signal quality of the PPG signal of the second region being higher than the signal quality of the PPG signal of the first region.

[0006] By implementing the method provided in the first aspect, the electronic device can fully consider the influence of blood vessel distribution and the state of each region of the skin on the PPG signal quality, guide the user to dynamically adjust the contact position of the finger and the PPG module when the user collects the PPG signal, and use the PPG signal with higher signal quality to analyze the physical condition of the user as much as possible.

[0007] In a possible implementation manner of the first aspect, before or after the electronic device collects the PPG signal of the first region on the first finger, the method further includes: collecting first data of a fourth region on the first finger, the fourth region including the first region and the second region; and generating a first distribution map based on the first data of the fourth region, where the first distribution map is used to determine signal quality of PPG signals of each region on the first finger.

[0008] That is, the electronic device can use the data collected on the user's finger to analyze the distribution of signal quality when collecting the PPG signal on the user's finger, and then use the distribution to guide the user to move the finger to the region with high signal quality, so as to ensure that the electronic device can collect the PPG signal with high signal quality.

[0009] In a possible implementation manner of the first aspect, the first prompt information is used to prompt the user to adjust the region on the first finger for collecting the PPG signal to the second region, and the second region is a region on the first distribution map where the PPG signal quality is higher than a third value, and the first distribution map represents the signal quality distribution of the PPG signals of the multiple regions on the first finger.

[0010] That is, when the electronic device guides the user to adjust the region on the finger for collecting the PPG signal, the electronic device can guide the user to adjust the finger to the specified region, avoid the user to blindly move the finger, and speed up the speed of the electronic device 100 to obtain the PPG signal with high signal quality.

[0011] In a possible implementation manner of the first aspect, before or after the PPG signal of the first region on the first finger is collected, the method further includes: collecting first data of a fourth region on the first finger, the fourth region including the first region and the second region; and generating a first distribution map based on the first data of the fourth region.

[0012] It can be seen that, in order to enable the electronic device to guide the user to move the finger to the region with high signal quality, the electronic device can first collect data of multiple regions on the finger, and analyze the signal quality distribution of the PPG signals of each region on the user's finger based on the data, so as to analyze the region with high signal quality on the user's finger according to the signal quality distribution of the PPG signals of each region on the user's finger.

[0013] In a possible implementation manner of the first aspect, the first data of the fourth region is obtained by the electronic device multiple times, and in the process of collecting the first data of the fourth region on the first finger, the method further includes: outputting second prompt information, and the second prompt information is used to indicate a region on the first finger where the first data is not collected.

[0014] That is, in the process of the electronic device collecting first data for generating the first distribution map, the electronic device can output prompt information to help the user understand the area on the finger where the first data is not collected, guide the user to adjust the area on the finger for collecting the PPG signal, and accelerate the speed of the electronic device generating the first distribution map.

[0015] In combination with the first aspect, in a possible implementation manner, the first data includes a PPG signal, and the first distribution map includes: a PPG signal distribution map, the PPG signal distribution map recording feature information of the PPG signal of the plurality of areas on the first finger, the feature information being used to indicate the signal quality of the PPG signal, and in the PPG signal distribution map, the PPG signal quality of the second area is higher than the PPG signal quality of the first area.

[0016] That is, the area on the user's finger with high signal quality can be determined by the electronic device according to the PPG signals collected on each area of the finger in the past, so as to realize accurate identification of the area with high signal quality by the electronic device.

[0017] In combination with the first aspect, in a possible implementation manner, the electronic device includes a first PPG module, and the PPG signal of the first area, the PPG signal of the second area, and the PPG signal of the fourth area are all collected by the first PPG module.

[0018] Exemplarily, the electronic device can be a watch, and the first PPG module can be located on the side of the watch.

[0019] That is, the electronic device can realize the collection of the PPG signal by using one PPG module, so as to improve the utilization rate of the PPG module as much as possible.

[0020] In combination with the first aspect, in a possible implementation manner, the electronic device includes a first PPG module and a second PPG module, the light coverage area of the second PPG module is greater than the light coverage area of the first PPG module, the PPG signal of the first area and the PPG signal of the second area are collected by the first PPG module, and the PPG signal of the fourth area is collected by the second PPG module.

[0021] Since the PPG signal distribution map needs the PPG signals of the plurality of areas on the finger, using the PPG module with a larger light coverage area to collect the PPG signals needed for generating the PPG signal distribution map can realize that the electronic device can collect sufficient PPG signals for generating the PPG signal distribution map in a smaller number of collection times, and accelerate the generation speed of the PPG signal distribution map.

[0022] In combination with the first aspect, in a possible implementation manner, the light coverage area of the second PPG module is greater than or equal to the area corresponding to the PPG signal distribution map on the first finger.

[0023] In the second PPG module, if the light coverage area of the second PPG module is greater than or equal to the area of the PPG signal distribution map corresponding to the first finger, the electronic device can generate the PPG signal distribution map by collecting a PPG signal once through the second PPG module.

[0024] With reference to the first aspect, in a possible implementation manner, the electronic device is a watch, the first PPG module is located at a side edge of the watch, and the second PPG module is located at a bottom of a dial plate of the watch.

[0025] That is, when the user measures the physiological parameter, the user can cover the finger at the side edge of the watch to collect the PPG signal, and when the user draws the finger distribution map, the user can cover the finger at the bottom of the dial plate to collect the PPG signal.

[0026] With reference to the first aspect, in a possible implementation manner, the first distribution map includes a blood vessel distribution map, and the blood vessel distribution map describes a blood vessel distribution of the first finger. In the blood vessel distribution map, the number of blood vessels in the second region is greater than the number of blood vessels in the first region.

[0027] That is, the area with high signal quality on the finger of the user can be determined by the electronic device according to the distribution of the blood vessels on the finger, so that the electronic device can accurately identify the area with high signal quality.

[0028] With reference to the first aspect, in a possible implementation manner, the outputting of the first prompt information specifically includes: outputting the first prompt information in a case that the signal quality of the PPG signal in the first region is lower than a first value, or the first region is different from a third region or the first region is located outside the third region, and the third region is a region on the first finger, in which the electronic device can collect the PPG signal with a signal quality higher than a second value.

[0029] Exemplarily, the third region can be a region determined according to the first distribution map.

[0030] That is, the electronic device can remind the user to adjust the area on the finger for collecting the PPG signal in a case that the collected PPG signal has low quality or the area for collecting the PPG signal is not a specified area, so that the electronic device can finally collect the PPG signal with high quality.

[0031] With reference to the first aspect, in a possible implementation manner, the first value is a preset parameter of the electronic device, or the first value is determined according to a first distribution map, and the first distribution map represents a signal quality distribution of PPG signals in multiple regions on the first finger.

[0032] That is, the standard of poor PPG signal quality can be set by the developer or determined by the electronic device according to the distribution of the signal quality of the PPG signal on the user's finger.

[0033] With reference to the first aspect, in a possible implementation, the position of the first region on the first finger is determined by the electronic device according to a fingerprint of the first region and a fingerprint map of the first finger, and the position of the first region on the first finger is the position of the fingerprint of the first region on the fingerprint map of the first finger.

[0034] The fingerprint of the user's finger can be introduced to more accurately identify each region on the user's finger, and the electronic device can collect the PPG signal value and more accurately identify the region on the user's finger for collecting the PPG signal.

[0035] With reference to the first aspect, in a possible implementation, the fingerprint map is collected by the electronic device, or the fingerprint map is data received by the electronic device.

[0036] With reference to the first aspect, in a possible implementation, the electronic device includes a fingerprint sensor and a third PPG module, the fingerprint sensor and the third PPG module are integrated on one device, the PPG signal of the first region is collected by the third PPG module, and the fingerprint of the first region is collected by the fingerprint sensor.

[0037] For example, the third PPG module can be the same device as the first PPG module or the second PPG module, or the third PPG module can be different from the first PPG module and the second PPG module.

[0038] That is, the electronic device can collect the user's fingerprint through the fingerprint sensor while collecting the PPG signal.

[0039] With reference to the first aspect, in a possible implementation, during the collection of the PPG signal, the method further includes: inputting third prompt information, the third prompt information being used to indicate whether the pressing pressure of the first finger is appropriate.

[0040] It can be understood that the prompt information can be output when the user measures the physiological parameter and inputs the first distribution map, to prompt whether the pressing pressure of the user's finger is appropriate.

[0041] That is, the electronic device can inform the user of the pressing pressure of the finger through the prompt information during the collection of the PPG signal, so that the user can timely adjust the pressing pressure of the finger, ensure that the pressing pressure of the finger is within an appropriate range, and avoid that the pressing pressure of the user's finger is too large or too small to affect the signal quality of the PPG signal.

[0042] With reference to the first aspect, in a possible implementation manner, the method further includes: in a case where the signal quality of the PPG signal collected at each region on the first finger is lower than a fourth value, outputting fourth prompt information, the fourth prompt information being used to instruct the user to replace the finger.

[0043] That is, if the signal quality of the PPG signal collected at each region on the finger of the user does not meet the requirement, the user can be reminded in time to replace the finger, so as to ensure that the electronic device can collect the PPG signal with the signal quality meeting the requirement.

[0044] With reference to the first aspect, in a possible implementation manner, the method further includes: determining a physiological parameter of the user based on the PPG signal of the second region, the physiological parameter including one or more of the following: blood pressure, blood sugar, blood oxygen, heart rate, and pulse rate.

[0045] As can be seen, the electronic device can use the PPG signal with high signal quality to determine the physiological parameter of the user, so as to ensure that the physiological parameter calculated is as real and accurate as possible.

[0046] In the second aspect, an embodiment of the present application further provides another collection method, which is applied to an electronic device, and the method includes: displaying a first interface, the first interface being used to prompt the user to collect a PPG signal on a first finger; collecting a PPG signal of a first region on the first finger; displaying first prompt information, the first prompt information being used to prompt the user to adjust a region on the first finger for collecting the PPG signal; collecting a PPG signal of a second region on the first finger, the signal quality of the PPG signal of the second region being higher than that of the PPG signal of the first region; and displaying a physiological parameter determined based on the PPG signal of the second region.

[0047] By implementing the method provided in the second aspect, the electronic device can guide the user to adjust the region on the finger for collecting the PPG signal by displaying a related user interface in the process in which the user measures the physiological parameter, so that the electronic device can collect the PPG signal with better signal quality for calculating the physiological parameter, help the user to obtain more accurate physiological parameter information, and improve the accuracy of the user in measuring the physiological parameter.

[0048] With reference to the second aspect, in a possible implementation manner, in the process of collecting the PPG signal of the first region on the first finger, the method further includes: displaying a first distribution diagram and displaying a first mark on the first distribution diagram, the first distribution diagram being used to indicate the first finger, and the first mark being used to indicate the first region.

[0049] In this way, in the process in which the user measures the physiological parameter, the user can understand the region on the finger for collecting the PPG signal by the first distribution diagram and the first mark displayed by the electronic device.

[0050] With reference to the second aspect, in a possible implementation manner, the first distribution map is a preset hand gesture of the electronic device, or the first distribution map is generated by the electronic device according to the data of the first hand.

[0051] With reference to the second aspect, in a possible implementation manner, the first prompt information includes a second mark displayed on the first distribution map, and the second mark is used to indicate the second region.

[0052] In this way, the electronic device can guide the user to move the hand to the specified position through the prompt information, avoid the user to move the hand blindly, and accelerate the speed of collecting the PPG signal with high signal quality by the electronic device.

[0053] With reference to the second aspect, in a possible implementation manner, the first prompt information further includes prompt information that the first mark points to the second mark.

[0054] In this way, the electronic device can better guide the user to move the hand to the specified position through the prompt information.

[0055] With reference to the second aspect, in a possible implementation manner, before displaying the first interface, the method further includes: displaying a second interface, the second interface including a first gesture diagram, the first gesture diagram corresponding to a fourth region of the first distribution map overlaid on the first hand; collecting first data of the fourth region on the first hand; wherein the first data of the fourth region is obtained by the electronic device through multiple times of collection, and the first data collected each time in the multiple times of collection is first data of a partial region in the fourth region, and the first data of the fourth region is used to generate the first distribution map; and updating the first gesture diagram in the process that the electronic device collects the first data, and the updated first gesture diagram includes prompt information of a region in the fourth region for which the electronic device has collected the first data.

[0056] Exemplarily, the first gesture diagram can be a honeycomb grid diagram, a square grid diagram, a fingerprint diagram, a blood vessel distribution diagram, and the like corresponding to the fourth region on the first hand.

[0057] That is, the electronic device can guide the user to input the first distribution map through a related display interface before measuring the physiological parameter of the user, so that the electronic device can guide the user to move the hand to the specified position through the first distribution map when measuring the physiological parameter of the user.

[0058] With reference to the second aspect, in a possible implementation manner, the first distribution map includes: a PPG signal distribution map, the PPG signal distribution map recording characteristic information of PPG signals of a plurality of regions on the first hand, the characteristic information being used to indicate signal quality of the PPG signals, and in the PPG signal distribution map, the PPG signal quality of the second region is higher than the PPG signal quality of the first region.

[0059] With reference to the second aspect, in a possible implementation manner, the first distribution map comprises a blood vessel distribution map, the blood vessel distribution map describing a blood vessel distribution of the first finger, and in the blood vessel distribution map, the number of blood vessels in the second region is greater than the number of blood vessels in the first region.

[0060] With reference to the second aspect, in a possible implementation manner, in the process of collecting the PPG signal of the first region on the first finger, the color of the first mark changes with the pressing force of the first finger.

[0061] In this way, the user can know the change of the pressing force of the user's finger according to the color change of the first mark.

[0062] With reference to the second aspect, in a possible implementation manner, in the process of collecting the PPG signal of the first region on the first finger, the method further comprises: displaying third prompt information, the third prompt information being used to indicate whether the pressing force of the first finger is appropriate.

[0063] In this way, the user can adjust the pressing force of the finger in time in the process of collecting the PPG signal, and try to ensure that the pressing force of the finger is in an appropriate range.

[0064] With reference to the second aspect, in a possible implementation manner, the physiological parameter can comprise one or more of the following: blood pressure, blood sugar, blood oxygen, heart rate, pulse rate.

[0065] In a third aspect, an embodiment of the present application provides an electronic device, comprising a memory, a processor and a computer program stored in the memory, and the processor executes the computer program to implement the method described in the first aspect or any one of the implementation manners of the first aspect, the second aspect or any one of the implementation manners of the second aspect.

[0066] In a fourth aspect, an embodiment of the present application provides a computer readable storage medium, and the computer readable storage medium stores a computer program, and the computer program is executed by a processor to implement the method described in the first aspect or any one of the implementation manners of the first aspect, the second aspect or any one of the implementation manners of the second aspect.

[0067] In a fifth aspect, an embodiment of the present application provides a computer program product, and the computer program product comprises a computer program, and the computer program is executed by a processor to implement the method described in the first aspect or any one of the implementation manners of the first aspect, the second aspect or any one of the implementation manners of the second aspect. BRIEF DESCRIPTION OF DRAWINGS

[0068] FIG. 1 is a distribution diagram of a finger fingertip blood vessel provided by an embodiment of the present application;

[0069] Fig. 2 is a schematic diagram of a principle of adjusting contact pressure in a process of measuring a physiological parameter by contacting a fingertip skin according to an embodiment of the present application;

[0070] Fig. 3 is a schematic diagram of a hardware structure of an electronic device 100 according to an embodiment of the present application;

[0071] Fig. 4 is a schematic diagram of an appearance of the electronic device 100 according to an embodiment of the present application;

[0072] Fig. 5 is a schematic diagram of a flow of a collection method according to an embodiment of the present application;

[0073] Fig. 6 is a schematic diagram of waveforms of PPG signals collected by the electronic device 100 under different pressing pressures of a user's finger according to an embodiment of the present application;

[0074] Fig. 7 is a pressure grid map according to an embodiment of the present application;

[0075] Fig. 8 is a schematic diagram of a PPG signal distribution map according to an embodiment of the present application;

[0076] Fig. 9 is a schematic diagram of collection of PPG signals by the electronic device 100 according to an embodiment of the present application;

[0077] Fig. 10 is a schematic diagram of display of the electronic device 100 when collecting PPG signals for a PPG signal distribution map according to an embodiment of the present application;

[0078] Fig. 11 is a schematic diagram of collection of PPG signals by the electronic device 100 according to an embodiment of the present application;

[0079] Fig. 12 is a schematic diagram of a blood vessel distribution map according to an embodiment of the present application;

[0080] Fig. 13 is a schematic diagram of a fingerprint map according to an embodiment of the present application;

[0081] Figs. 14A-14F, 15A-15C, and 16A-16F are some user interfaces according to embodiments of the present application;

[0082] Fig. 17 is a schematic diagram of a flow of another collection method according to an embodiment of the present application;

[0083] Fig. 18 is a schematic diagram of a structure of a collection apparatus 200 according to an embodiment of the present application. DETAILED DESCRIPTION

[0084] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings.

[0085] The term "user interface (UI)" in the embodiments of the present application is a medium interface for interaction and information exchange between an application program or an operating system and a user, which realizes conversion between an internal form of information and a form acceptable by the user. The user interface is source code written in a specific computer language such as Java or extensible markup language (XML), and the interface source code is parsed, rendered, and finally presented as content recognizable by the user on an electronic device. A commonly used form of the user interface is a graphic user interface (GUI), which refers to a user interface displayed in a graphical manner and related to computer operation. It can be a visual interface element such as text, an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, and the like displayed in a display screen of an electronic device.

[0086] At present, a device can non-invasively measure physiological parameters of a user by contacting the skin of the user. A device equipped with a PPG module can collect a PPG signal by contacting the skin of a wrist or a fingertip of the user, and then analyze physiological parameters such as blood oxygen, heart rate, blood pressure, and blood glucose of the user by using the PPG signal.

[0087] However, if the signal quality of the PPG signal collected by the device is not good, the accuracy of measuring the physiological parameters will be affected.

[0088] If the physiological parameters of the user are measured by contacting the skin of the finger pulp of the user, the signal quality of the PPG signal is mainly affected by the following two aspects:

[0089] 1) Vessel distribution of the finger pulp

[0090] If the PPG module does not cover a sufficient number of blood vessels when collecting the PPG signal, a PPG signal with sufficient intensity cannot be obtained. For example, FIG. 1 is a schematic diagram of the distribution of blood vessels of a fingertip of a finger provided in an embodiment of the present application. As shown in FIG. 1, region 1 and region 2 are regions covered by the PPG module when collecting the PPG signal, and the number of blood vessels under the fingertip in region 2 is greater than that in region 1. It can be seen that the quality of the PPG signal collected by the PPG module in region 2 is higher than that of the PPG signal collected by the PPG module in region 1.

[0091] 2) Contact pressure between the PPG module and the skin

[0092] If the contact pressure between the PPG module and the skin is too large, it can cause the blood vessels to be physically compressed and deformed, thereby affecting the blood flow volume, causing local hypoperfusion, and causing the quality of the collected PPG signal to decrease. If the contact pressure between the PPG module and the skin of the fingertip is too small, light leakage and other problems can occur, which can also cause the quality of the collected PPG signal to decrease.

[0093] It can be seen that when physiological parameters are measured by contacting the skin, factors such as contact pressure, contact position, and skin condition during measurement can affect the signal quality.

[0094] To address the influence of contact pressure on signal quality, a common approach is to set a threshold range of contact pressure according to empirical values. During measurement, whether the contact pressure is within the threshold range is determined to control the user's pressing force to be within an appropriate range.

[0095] For example, FIG. 2 shows a schematic diagram of adjusting the contact pressure during the process of measuring physiological parameters by contacting the skin of the fingertip.

[0096] As shown in FIG. 2, if the contact pressure is small, a prompt message can be output to prompt the user that the current contact pressure is too small and the pressing force should be increased. If the contact pressure is large, a prompt message can be output to prompt the user that the current contact pressure is too large and the finger should be slightly lifted. If the contact pressure is moderate, a prompt message can be output to prompt the user to continue to maintain the current pressing force.

[0097] Although the above method can control the pressing force of the user's finger within an appropriate range, considering that the PPG signal quality is also affected by the contact position, even if the pressing force of the user's finger is controlled within an appropriate range, if the PPG module contacts a skin area with less blood vessel distribution, a thick stratum corneum, or a thick fat layer, the quality of the PPG signal collected by the PPG module is still limited.

[0098] Therefore, the embodiments of the present application provide a collection method. The method can output a prompt message during the process of collecting a PPG signal of a certain area of the finger, and guide the user to adjust the contact area between the finger and the PPG module to a position with higher signal quality, so that the electronic device obtains a PPG signal with higher signal quality.

[0099] It can be seen that the measurement method provided by the embodiments of the present application fully considers the influence of blood vessel distribution and the state of each area of the skin on the PPG signal quality, can dynamically adjust the contact position between the finger and the PPG module when the user measures the PPG signal, and can use PPG signals with higher signal quality to analyze the user's physical condition as much as possible.

[0100] FIG. 3 is a schematic diagram of the hardware structure of an electronic device 100 provided by the embodiments of the present application.

[0101] The electronic device 100 can be a mobile phone, a tablet computer, a desktop computer, a laptop computer, a handheld computer, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, and a cellular phone, a personal digital assistant (PDA), an augmented reality (AR) device, a virtual reality (VR) device, an artificial intelligence (AI) device, a wearable device, an in-vehicle device, a smart home device, and / or a smart city device, and the specific type of the electronic device is not specially limited in the embodiments of the present application.

[0102] Preferably, in the embodiments of the present application, the electronic device 100 can be a wearable device such as a watch, a bracelet, a ring, and the like worn on the user's body.

[0103] The electronic device 100 can include a processor 110, an internal memory 121, a charge management module 140, a power management module 141, a battery 142, a sensor module 180, a PPG module 193, and a display screen 194, and the like. Optionally, the electronic device 100 can further include any one or more of the following: a wireless communication module 160, an audio module 170, a key 190, a motor 191, an indicator 192, and the like. The audio module 170 can include any one or more of the following: a speaker 170A, a receiver 170B, and a microphone 170C. The sensor module 180 can include a touch sensor 180A, an electrocardiogram (ECG) sensor 180B, a fingerprint sensor 180C, a pressure sensor 180D, and the like.

[0104] The processor 110 can include one or more processing units, for example: the processor 110 can include an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), and the like. Different processing units can be independent devices or can be integrated into one or more processors.

[0105] In some embodiments, the processor 110 can be configured to control the PPG module 193 to collect the PPG signal.

[0106] The controller can generate operation control signals according to the instruction operation code and the timing signal, to complete the control of fetching and executing instructions.

[0107] The processor 110 can also be provided with a memory for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory can store instructions or data that have just been used or are frequently used by the processor 110. If the processor 110 needs to use the instructions or data again, it can directly call from the memory. This avoids repeated access and reduces the waiting time of the processor 110, thereby improving the efficiency of the system.

[0108] In some embodiments, the processor 110 can include one or more interfaces. The interfaces can include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver / transmitter (UART) interface, a mobile industry processor interface (MIPI), a general-purpose input / output (GPIO) interface, a subscriber identity module (SIM) interface, and / or a universal serial bus (USB) interface, etc.

[0109] The charging management module 140 is configured to receive a charging input from a charger. The charger can be a wireless charger or a wired charger. In some embodiments of wired charging, the charging management module 140 can receive a charging input from a wired charger. In some embodiments of wireless charging, the charging management module 140 can receive a wireless charging input through a wireless charging coil of the electronic device 100. The charging management module 140 can charge the battery 142 while also supplying power to the electronic device through the power management module 141.

[0110] The power management module 141 is configured to connect the battery 142 and the charging management module 140 to the processor 110. The power management module 141 receives input from the battery 142 and / or the charging management module 140 to power the processor 110, the internal memory 121, the display 194, the wireless communication module 160, and the like. The power management module 141 can also be configured to monitor parameters such as battery capacity, battery cycle count, battery health (leakage, impedance), and the like. In some embodiments, the power management module 141 can also be integrated into the processor 110. In some other embodiments, the power management module 141 and the charging management module 140 can be integrated into the same device.

[0111] The wireless communication module 160 can provide wireless communication solutions including wireless local area networks (WLAN) (e.g., wireless fidelity (Wi-Fi) networks), Bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), infrared (IR), NearLink, intrabody communication (IBC), and the like, which can be applied to the electronic device 100. For example, when two electronic devices communicate using an IBC scheme, each of the two electronic devices has at least one electrode in contact with the skin, and the two electronic devices transmit and receive information to and from each other through the electrodes in contact with the skin. The wireless communication module 160 can be one or more devices that integrate at least one communication processing module.

[0112] The electronic device 100 can implement a display function through a GPU, the display 194, and an application processor. The GPU is a microprocessor for image processing, which is connected to the display 194 and the application processor. The GPU is configured to perform mathematical and geometric calculations for graphics rendering. The processor 110 can include one or more GPUs that execute program instructions to generate or change display information.

[0113] The display screen 194 is configured to display images, videos, and the like. The display screen 194 includes a display panel. The display panel can be made of a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED), a flex light-emitting diode (FLED), a Miniled, a MicroLed, a Micro-oLed, a quantum dot light emitting diode (QLED), or the like. In some embodiments, the electronic device 100 can include one or N display screens 194, where N is a positive integer greater than 1.

[0114] In some embodiments, the display screen 194 can be configured to display prompt information for prompting the user to adjust the area on the finger for collecting the PPG signal during the process of collecting the PPG signal by the electronic device 100.

[0115] The internal memory 121 can include one or more random access memories (RAMs) and one or more non-volatile memories (NVMs). The random access memory can be directly readable and writable by the processor 110, and can be used to store executable programs (e.g., machine instructions) of an operating system or other programs that are currently running, and can also be used to store data of users and application programs, and the like. The non-volatile memory can also store executable programs and store data of users and application programs, and can be loaded into the random access memory in advance for direct reading and writing by the processor 110.

[0116] In some embodiments, the internal memory 121 can be configured to store the PPG signal collected by the PPG module 193.

[0117] The electronic device 100 can realize audio functions through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an application processor, and the like. For example, music playing, recording, and the like.

[0118] The audio module 170 is configured to convert digital audio information into analog audio signals and output the analog audio signals, and to convert analog audio input into digital audio signals. The audio module 170 can also be configured to encode and decode audio signals. In some embodiments, the audio module 170 can be disposed in the processor 110, or some of the functions of the audio module 170 can be disposed in the processor 110.

[0119] The speaker 170A, also referred to as a "loudspeaker", is configured to convert audio electrical signals into sound signals. The electronic device 100 can listen to music or take a hands-free call through the speaker 170A.

[0120] The microphone 170B, also referred to as a "receiver", is configured to convert audio electrical signals into sound signals. When the electronic device 100 is on a call or receiving a voice message, the user can listen to the voice through the microphone 170B by placing the microphone 170B close to the ear.

[0121] The microphone 170C, also referred to as a "microphone", "sound transducer", is configured to convert sound signals into electrical signals. When making a call or sending a voice message, the user can input sound signals into the microphone 170C by speaking into the microphone 170C with the mouth. The electronic device 100 can be provided with at least one microphone 170C. In other embodiments, the electronic device 100 can be provided with two microphones 170C, in addition to collecting sound signals, noise reduction functions can also be achieved. In other embodiments, the electronic device 100 can also be provided with three, four or more microphones 170C, in addition to collecting sound signals, noise reduction, and can also identify the source of the sound, and achieve directional recording functions, etc.

[0122] The touch sensor 180A, also referred to as a "touch device". The touch sensor 180A can be disposed on the display screen 194, and the touch sensor 180A and the display screen 194 form a touch screen, also referred to as a "touch screen". The touch sensor 180A is configured to detect touch operations acting on or near it. The touch sensor can pass the detected touch operation to the application processor to determine the touch event type. The display screen 194 can provide visual output related to the touch operation. In other embodiments, the touch sensor 180A can also be disposed on the surface of the electronic device 100, which is different from the position of the display screen 194.

[0123] The ECG sensor 180B can detect the tiny current passing through the conduction circuit of the heart by contacting the skin of the user's wrist or fingertip, thereby obtaining the ECG signal, and the electronic device 100 can analyze the user's heart rate, blood pressure, blood oxygen saturation, blood sugar, and other cardiovascular-related physiological parameters according to the ECG signal.

[0124] Exemplarily, the ECG sensor 180B and the PPG module 193 can be close to each other in physical position, so that when the electronic device 100 collects a PPG signal through the PPG module 193, an ECG signal can also be collected through the ECG sensor 180B synchronously.

[0125] The fingerprint sensor 180C can be used to collect a fingerprint. The electronic device 100 can use the collected fingerprint feature to realize fingerprint unlocking, access application lock, fingerprint photograph, fingerprint answer incoming call, etc.

[0126] Exemplarily, the fingerprint sensor 180C and the PPG module 193 can be close to each other in physical position, so that when the electronic device 100 collects a PPG signal through the PPG module 193 on a user's finger, a fingerprint of the user's finger can also be collected through the fingerprint sensor 180C synchronously. The electronic device 100 can determine the contact position of the current user's finger with the PPG module 193 through the fingerprint collected by the fingerprint sensor 180C, so that the electronic device 100 can guide the user to move the finger to an area with better PPG signal quality more accurately.

[0127] The pressure sensor 180D can be used to sense a pressure signal and convert the pressure signal into an electrical signal.

[0128] Exemplarily, the pressure sensor 180D and the PPG module 193 can be close to each other in physical position, so that when the electronic device 100 collects a PPG signal through the PPG module 193, the contact pressure of the PPG module 193 with the user's skin can also be collected through the pressure sensor 180D synchronously, so that the electronic device 100 can output prompt information in time when the contact pressure is too large or too small, prompting the user to adjust the contact pressure of the user's skin with the PPG module 193.

[0129] The key 190 includes a power-on key, a volume key, etc. The key 190 can be a mechanical key. It can also be a touch key. The electronic device 100 can receive a key input and generate a key signal input related to user settings and function control of the electronic device 100.

[0130] The motor 191 can generate a vibration prompt. The motor 191 can be used for incoming call vibration prompt, and also can be used for touch vibration feedback. For example, touch operations on different applications (such as photographing, audio playing, etc.) can correspond to different vibration feedback effects. Touch operations on different regions of the display screen 194 can also correspond to different vibration feedback effects. Different application scenarios (such as time reminder, receiving information, alarm, game, etc.) can also correspond to different vibration feedback effects. The touch vibration feedback effect can also support customization.

[0131] The indicator 192 can be an indicator light, which can be used to indicate the charging status, the power change, and can also be used to indicate messages, missed calls, notifications, etc.

[0132] The PPG module 193 can be used to collect PPG signals, which can be used to calculate physiological parameters related to the cardiovascular system function status of the user, such as blood oxygen, heart rate, respiratory rate, blood pressure, etc.

[0133] In the embodiments of the present application, the electronic device 100 can include one or more PPG modules 193. One PPG module 193 can include one or more light sources, such as light emitting diodes (LEDs), and one or more photoelectric detectors (PDs).

[0134] Among them, one light source and one photoelectric detector can constitute one light source-photoelectric detector pair, in which the light source and the photoelectric detector are spaced apart by a certain distance, the light source can emit light, and after the light irradiates on the skin, the photoelectric detector detects the remaining reflected light after the light is absorbed by the blood and tissue in the penetration process, and converts it into an electrical signal to obtain a PPG signal. That is, one light source-photoelectric detector pair can collect one PPG signal, and if the PPG module 193 contains multiple light source-photoelectric detector pairs, multiple PPG signals can be collected. In this way, the electronic device 100 can use one or more PPG signals to calculate the physiological parameters of the user.

[0135] The contact area between the finger and the PPG module mentioned in the embodiments of the present application can refer to the light coverage area of the light emitted by the light source irradiating on the skin of the finger. If the PPG module 193 collects PPG signals, the more light sources used, the larger the area of the light coverage area of the PPG module 193.

[0136] Exemplarily, the light source in the PPG module 193 can emit one or more wavelengths of light, such as red light, infrared light, blue light, green light, etc. The embodiments of the present application do not make any limitation in this regard.

[0137] It can be understood that the devices between different light source-photoelectric detector pairs can be multiplexed, for example, the PPG module 193 can include a light source 1, a light source 2, and a photoelectric detector 1, the light source 1 and the photoelectric detector 1 can constitute one light source-photoelectric detector pair, and the light source 2 and the photoelectric detector 1 can constitute one light source-photoelectric detector pair.

[0138] In addition, the distances between different light source-photodetector pairs can be the same or different. The distance can refer to the distance between the light source and the photodetector in a light source-photodetector pair. For example, the PPG module 193 can include light source-photodetector pairs with two different distances. One is a long-distance light source-photodetector pair, and the other is a short-distance light source-photodetector pair. In one possible implementation, the distance between the light source and the photodetector in the long-distance light source-photodetector pair is greater than 4 mm, and the distance between the light source and the photodetector in the short-distance light source-photodetector pair is less than 4 mm.

[0139] In some embodiments, the sensor module 180 of the electronic device 100 can further include any one or more of the following sensors: an acceleration sensor, a barometric pressure sensor, a temperature sensor, a gyroscope sensor, and the like. Among them:

[0140] The acceleration sensor can detect the magnitude of acceleration of the electronic device 100 in each direction (generally three axes). When the electronic device 100 is stationary, the magnitude and direction of gravity can be detected. It can also be used to identify the posture of the electronic device, applied to landscape / portrait screen switching, pedometer, etc.

[0141] The barometric pressure sensor can be used to measure air pressure. In some embodiments, the barometric pressure sensor can also be used to measure water pressure.

[0142] The temperature sensor can be used to measure the body temperature of the user, and can also be used to measure the temperature of the environment in which the user is located.

[0143] The gyroscope sensor can be used to determine the motion posture of the electronic device 100. In some embodiments, the angular velocity of the electronic device 100 around three axes (i.e., x, y, and z axes) can be determined by the gyroscope sensor.

[0144] It can be understood that the structure shown in the embodiments of the present application does not constitute a specific limitation on the electronic device 100. In other embodiments of the present application, the electronic device 100 can include more or fewer components than shown, or combine certain components, or split certain components, or different component arrangements. The components shown can be implemented in hardware, software, or a combination of software and hardware.

[0145] FIG. 4 is a schematic diagram of the appearance of the electronic device 100 according to an embodiment of the present application.

[0146] As shown in FIG. 4, the electronic device 100 can be a watch that can be worn on the wrist of a user.

[0147] Among them, (a) in FIG. 4 is a schematic diagram of the front of the electronic device 100, and (b) in FIG. 4 is a schematic diagram of the back of the electronic device 100. (c) in FIG. 4 is a schematic diagram of the side of the electronic device 100.

[0148] As shown in (a) of FIG. 4, the front of the electronic device 100 is configured with a display screen, through which the electronic device 100 can display content such as time, date, and the like, and physiological parameters such as blood pressure, blood sugar, blood oxygen, and the like measured by the electronic device 100. In addition, the electronic device 100 can also display prompt information through the display screen during the collection of the PPG signal, prompting the user to change the contact area of the skin and the PPG module, or further prompting the user to adjust the contact area of the skin and the PPG module in a specified direction.

[0149] Exemplarily, the back of the electronic device 100 can be configured with devices such as a PPG module, an ECG sensor, and the like, which can measure physiological parameters of the user by contacting the skin. Specifically, when the electronic device 100 is worn on the wrist of the user, the back of the electronic device 100 is attached to the skin on the wrist of the user, and the electronic device 100 can collect a PPG signal through the PPG module configured on the back, collect an ECG signal using the ECG sensor, and then calculate the physiological parameters of the user using these signals.

[0150] Exemplarily, the side of the electronic device 100 can be configured with devices such as a PPG module, an ECG sensor, a fingerprint sensor, a pressure sensor, and the like. As shown in FIG. 4, the side of the electronic device 100 can be configured with a key module, which can be integrated with one or more of a PPG module, an ECG sensor, a fingerprint sensor, and a pressure sensor. In this way, when the user's finger is applied to the key module, a PPG signal can be collected through the PPG module, an ECG signal can be collected through the ECG sensor, a fingerprint on the user's finger can be collected through the fingerprint sensor, and the pressing pressure of the user's finger applied to the key module can be collected through the pressure sensor.

[0151] In one specific example, referring to FIG. 4, the back and the side of the electronic device 100 are both configured with a PPG module and an ECG sensor. The positional relationship between the PPG module and the ECG sensor on the back of the electronic device 100 can be seen in (b) of FIG. 4, and the positional relationship between the PPG module and the ECG sensor on the side of the electronic device 100 can be seen in (c) of FIG. 4.

[0152] It can be understood that the key module on the electronic device 100 can also be integrated with other devices, such as a camera, and the present application embodiments do not limit this. The back of the electronic device 100 can also be configured with more or fewer devices. In addition, FIG. 4 takes the electronic device 100 as a watch as an example, and in other embodiments of the present application, the electronic device 100 can also be other types of electronic devices, and the present application embodiments do not limit this.

[0153] It should be noted that the device integration mentioned in the embodiments of the present application can refer to the physical position of the two devices being close. In this way, when the user's skin contacts one of the devices, the other device can also be contacted at the same time due to the close distance, so as to facilitate the electronic device 100 to simultaneously use multiple devices to collect the user's related information through the contacted skin, such as fingerprint, PPG signal, ECG signal, etc.

[0154] The specific description of the PPG module, the ECG sensor, the fingerprint sensor, and the pressure sensor can be referred to the related content in FIG. 3 described above, and will not be repeated here.

[0155] FIG. 5 is a flowchart of the collection method provided by the embodiments of the present application.

[0156] S101. The electronic device 100 collects a PPG signal of a first area on a first finger.

[0157] The electronic device 100 can collect the PPG signal through the PPG module, and the PPG module includes a light source and a photodetector. The electronic device 100 collecting the PPG signal specifically refers to the electronic device 100 controlling the light source, such as a light-emitting diode, to emit light to the skin, and then detecting the light reflected or transmitted by the skin through the photodetector, converting it into an electrical signal, and thus obtaining the PPG signal.

[0158] The first area can refer to the area on the first finger irradiated by the light source.

[0159] Since the first area is only a small area of skin on the first finger, the skin conditions and blood vessel distribution at different positions on the finger can affect the signal quality of the PPG signal collected by the PPG module at that position.

[0160] Exemplarily, the first finger can be a finger selected by the user or a finger specified by the electronic device 100. For example, the first finger can be the thumb, the index finger, the middle finger, the ring finger, or the little finger, etc. If the first finger is the finger specified by the electronic device 100, the electronic device 100 can output a prompt information to prompt the user to select the finger specified by the electronic device 100 to collect the PPG signal before performing step S101.

[0161] Exemplarily, the electronic device 100 can trigger the execution of step S101 when starting to measure the physiological parameter of the user. That is, the electronic device 100 can start to collect the PPG signal after starting to measure the physiological parameter of the user, and then use the PPG signal to calculate the physiological parameter of the user.

[0162] The electronic device 100 triggering the start of the measurement of the physiological parameter can exist in the following multiple cases:

[0163] 1) The electronic device 100 can trigger the start of the measurement of the physiological parameter based on a user operation

[0164] Specifically, the electronic device 100 can provide a user interface for measuring the physiological parameter, so that the user can start or stop the measurement of the physiological parameter based on the user interface, so that the user can know the physical condition of the user at any time.

[0165] 2) The electronic device 100 can start the measurement of the physiological parameter when a preset condition is reached

[0166] The preset condition can refer to reaching a preset time, detecting that the user is in a stationary state, and the like.

[0167] In this way, the electronic device 100 can automatically identify the best time for the measurement of the physiological parameter, automatically trigger the measurement of the physiological parameter, and provide the user with an intelligent and convenient physiological parameter monitoring service.

[0168] The embodiments of the present application do not limit the triggering manner of the electronic device 100 to start the measurement of the physiological parameter.

[0169] S102. The electronic device 100 determines whether the PPG signal of the first region meets a preset requirement.

[0170] The electronic device 100 determining whether the PPG signal of the first region meets the preset requirement can be in the following two cases:

[0171] 1) The electronic device 100 determines whether the signal quality of the PPG signal of the first region is higher than a first value

[0172] If the signal quality of the PPG signal of the first region is higher than the first value, the PPG signal of the first region meets the preset requirement, and if the signal quality of the PPG signal of the first region is lower than the first value, the PPG signal of the first region does not meet the preset requirement.

[0173] Exemplarily, the first value can be a system preset value, and the embodiments of the present application do not limit the first value.

[0174] 2) The electronic device 100 determines whether the first region is a specified region (such as the third region) on the first finger

[0175] The specified region can be a region on the first finger that can collect a PPG signal with a signal quality higher than a second value determined by the electronic device 100. Exemplarily, the electronic device 100 can determine the specified region according to the distribution of blood vessels on the first finger, the skin state, or the situation of the PPG signal collected at each region on the first finger in history.

[0176] That is, the electronic device 100 can determine in advance a third region on the first finger where a PPG signal with high signal quality can be collected, and if the first region is different from the third region or the first region is outside the third region, it indicates that the PPG signal collected by the electronic device 100 on the first region has poor signal quality.

[0177] Exemplarily, the second value can be equal to the first value, or can be different from the first value, and the embodiments of the present application do not make any limitation in this regard.

[0178] It can be understood that the electronic device 100 can also determine whether the PPG signal of the first region meets the preset requirement through other manners, and the embodiments of the present application do not make any limitation in this regard.

[0179] If the PPG signal of the first region meets the preset requirement, the electronic device 100 can end the collection of the PPG signal, and directly use the PPG signal of the first region to calculate the physiological parameter of the user. If the PPG signal of the first region does not meet the preset requirement, the electronic device 100 can execute step S103.

[0180] It can be understood that step S102 is an optional step, and the electronic device 100 can directly execute step S103 after collecting the PPG signal of the first region, prompting the user to adjust the region on the finger for collecting the PPG signal.

[0181] S103. The electronic device 100 outputs first prompt information, which is used to prompt the user to adjust the region on the first finger for collecting the PPG signal.

[0182] The first prompt information can exist in two cases:

[0183] 1) The first prompt information can be used to prompt the user to adjust the region on the finger for collecting the PPG signal, and is not used to prompt the direction or position of adjustment

[0184] In this case, the user can determine the moving direction of the finger on the PPG module by himself / herself, and the electronic device 100 can collect the PPG signal of other regions on the finger in the process of the user moving the finger, until the PPG signal with high signal quality is collected.

[0185] In this way, the electronic device 100 can identify whether the PPG signal collected on different regions on the user's finger meets the preset requirement in the process that the user continuously adjusts the region on the finger for collecting the PPG signal, until the PPG signal meeting the preset requirement is collected, then the electronic device 100 can stop outputting the first prompt information and stop collecting the PPG signal.

[0186] Exemplarily, in the process that the user continuously adjusts the area on the finger for collecting the PPG signal, if the currently collected PPG signal meets the preset requirement, the electronic device 100 can not output an abnormal alarm, and determine the area on the current finger for collecting the PPG signal as the area in which the signal quality of the PPG signal meets the requirement, if the currently collected PPG signal does not meet the preset requirement, the electronic device 100 can output a prompt information to prompt the user to "lift the finger and re-contact the crown", and determine the area on the current finger for collecting the PPG signal as the area in which the signal quality of the PPG signal does not meet the requirement.

[0187] 2) The first prompt information can be used to prompt the user to adjust the area on the finger for collecting the PPG signal to a specified direction or a specified position. In this case, the first prompt information can be used to prompt the user to adjust the area on the first finger for collecting the PPG signal to the second area.

[0188] In this way, the user can move the first finger to the specified area by the guidance of the first prompt information, and adjust the contact area between the first finger and the PPG module to the specified area. The user does not need to blindly adjust the area on the finger for collecting the PPG signal, but moves in a targeted manner through the guidance of the first prompt information, which helps the electronic device 100 to quickly collect the PPG signal with high signal quality.

[0189] The specific way in which the electronic device determines the second area will be described later, and will not be described here.

[0190] S104. The electronic device 100 collects the PPG signal of the second area on the first finger, and the signal quality of the PPG signal of the second area is higher than that of the PPG signal of the first area.

[0191] Exemplarily, the PPG signal of the second area can be the PPG signal that meets the preset requirement mentioned in step S102.

[0192] The electronic device 100 can determine the physiological parameter of the user based on the PPG signal of the second area, and the physiological parameter can include one or more of the following: blood pressure, blood sugar, blood oxygen, heart rate, pulse rate, etc.

[0193] Further, the electronic device 100 can display the physiological parameter determined based on the PPG signal of the second area, so that the user can understand his own physical condition.

[0194] As can be seen from steps S101-S104, the electronic device 100 can prompt the user to adjust the area on the finger for collecting the PPG signal, so as to improve the signal quality of the PPG signal collected by the electronic device 100 as much as possible, and further improve the accuracy of the physiological parameter measurement.

[0195] In some embodiments, considering that the pressing force of the finger also affects the signal quality of the PPG signal, therefore, during the process of collecting the PPG signal by the electronic device 100, the electronic device 100 can output prompt information (for example, the third prompt information), which can be used to indicate whether the pressing force of the first finger is appropriate, so that the user can timely adjust the pressing force of the finger to complete the collection of the PPG signal with appropriate pressing force.

[0196] Among them, the electronic device 100 can determine the pressing force of the first finger by any one of the following ways:

[0197] 1) The electronic device 100 can identify the pressing force of the user's finger through the pressure sensor during the process of collecting the PPG signal.

[0198] In this case, the pressure sensor and the PPG module can be integrated together, so that when the electronic device 100 starts the PPG module to collect the PPG signal, the pressing force of the user's finger can be identified through the pressure sensor at the same time when the user's finger is pressed on the PPG module.

[0199] Exemplarily, taking the electronic device 100 shown in FIG. 4 as an example, the pressure sensor and the PPG module can be integrated in the key module, so that when the user's finger is pressed on the key module, the electronic device 100 can collect the PPG signal through the PPG module on the key module, and identify the pressing force of the user's finger through the pressure sensor.

[0200] 2) The electronic device 100 can identify the pressing force of the user's finger through the collected PPG signal during the process of collecting the PPG signal.

[0201] Considering that when the user's pressing force is too large, it may cause the blood vessels to be compressed, thereby reducing the blood flow of the blood vessels, and making the intensity of the collected PPG signal weak, and when the user's pressing force is too small, it may cause the skin and the PPG module to not fit tightly, and the light leakage phenomenon may occur, which will also make the intensity of the collected PPG signal weak.

[0202] Exemplarily, FIG. 6 shows a waveform diagram of the PPG signal collected by the electronic device 100 under different pressing forces of the user's finger.

[0203] As can be seen from FIG. 6, whether the pressure is too large or too small, the signal intensity of the PPG signal is weaker than that when the pressing force is moderate.

[0204] Therefore, the electronic device 100 can determine whether the pressing force of the user's finger is appropriate by judging whether the signal strength of the currently collected PPG signal is less than the specified signal strength. If the signal strength of the PPG signal is less than the specified signal strength, it means that the pressing force of the user's finger is too large or too small. If the signal strength of the PPG signal is greater than the specified signal strength, it means that the pressing force of the user's finger is appropriate.

[0205] The specified signal strength can be determined according to the PPG signals collected by the electronic device 100 in the past, or can be determined by the developer according to experience, and the embodiments of the present application do not limit this.

[0206] The electronic device 100 can output the third prompt information to the user through an interface display, voice prompt, vibration prompt, etc., to prompt the user whether the pressing force of the first finger is appropriate.

[0207] Taking the interface display as an example, the electronic device 100 can display different colors to represent different pressing forces of the user's finger. In this way, the user can know whether the pressing force of the finger is appropriate through the color displayed by the electronic device 100.

[0208] In an implementation manner, the electronic device 100 can divide the pressing force into multiple levels, different levels represent different pressing force ranges, and different levels correspond to different colors. In this way, when the electronic device 100 identifies the pressing force within a certain level, the color corresponding to the level can be displayed.

[0209] For example, the electronic device 100 can divide the pressing force into three levels, and the three levels correspond to light red, red and dark red respectively. The light red represents that the pressing force is too small, the red represents that the pressing force is appropriate, and the dark red represents that the pressing force is too large.

[0210] In this way, the electronic device 100 can display different shades of red to prompt the user whether the current pressing force is appropriate, so that the user can adjust the pressing force to the appropriate range in time.

[0211] It can be understood that the electronic device 100 can also represent different pressing forces by other colors, for example, blue represents that the pressing force is too small, yellow represents that the pressing force is appropriate, and red represents that the pressing force is too large. The embodiments of the present application do not limit this.

[0212] Further, the electronic device 100 can combine the pressure grid map of the finger pad, present different colors in the cells on the pressure grid map, and use the colors to represent the magnitude of the pressing pressure, and the positions of the cells represent the force positions on the finger pad. Through the pressure grid map, the user can not only know whether the pressing pressure of the finger is appropriate, but also can understand the force positions on the finger pad, and better guide the user to adjust the pressing pressure of the finger.

[0213] For example, FIG. 7 is a pressure grid map provided by an embodiment of the present application.

[0214] For example, FIG. 7 is a pressure grid map provided by an embodiment of the present application.

[0215] As shown in (a) of FIG. 7, when the pressing pressure is small, only part of the cells in the pressure grid map present light colors.

[0216] As shown in (c) of FIG. 7, when the pressing pressure is too large, part of the cells in the pressure grid map present dark colors.

[0217] As shown in (b) of FIG. 7, when the pressing pressure is moderate, part of the cells in the pressure grid map present moderate light and dark colors, and there is no cell presenting a dark color.

[0218] In addition, through the positions of the cells presenting colors in the pressure grid map shown in FIG. 7, the force positions on the finger pad of the user can be known.

[0219] It can be understood that FIG. 7 is only an example, and the electronic device 100 can also present the pressing pressure of the finger of the user through other manners. For example, the pressure grid map can only include two colors, one color represents appropriate pressing pressure, and the other color represents inappropriate pressing pressure. In this way, when the finger of the user presses on the PPG module, the user can decide to reduce or increase the pressing pressure, so that the electronic device 100 can present the corresponding color when the pressing pressure is appropriate.

[0220] In some embodiments, the PPG module in the electronic device 100 can also be integrated with other sensors for measuring physiological parameters of the user. For example, the PPG module can be integrated with an ECG sensor. When the electronic device 100 collects the PPG signal through the PPG module, the ECG signal can also be collected through the ECG sensor. In this way, when the electronic device 100 collects the PPG signal through the PPG module, other data can also be collected through other sensors integrated with the PPG module, and the physiological parameters of the user can be comprehensively measured, and the health risk of the user can be evaluated from multiple aspects.

[0221] In some embodiments, in the case that the signal quality of the PPG signals collected from the multiple regions on the first finger are all poor, for example, lower than a fourth value, the electronic device 100 can output a prompt information (for example, a fourth prompt information) to prompt the user to replace the finger.

[0222] In this way, the user can switch to use other fingers to collect PPG signals, so as to ensure that the electronic device 100 can use PPG signals with high signal quality as much as possible to calculate the physiological parameters of the user.

[0223] In the above step S103, the first prompt information output by the electronic device 100 can be used to prompt the user to adjust the region on the first finger for collecting PPG signals to a second region, and how the electronic device 100 determines the second region will be described in detail below.

[0224] The second region can be determined according to a finger distribution map of the first finger, and the finger distribution map can be used to represent the signal quality distribution of the PPG signals of the multiple regions on the first finger. Through the finger distribution map, the electronic device 100 can know the regions on the first finger that can collect PPG signals with high signal quality, and the regions that can collect PPG signals with low signal quality.

[0225] The second region can be a region on the finger distribution map with PPG signal quality higher than a third value.

[0226] For example, the third value can be equal to the first value mentioned in the above step S102, that is, the electronic device 100 can find a region on the first finger that can collect PPG signals with signal quality meeting the preset requirement, and guide the user to adjust the finger to this region through the prompt information, in the case that the signal quality of the PPG signals of the first region does not meet the preset requirement.

[0227] For example, the second region can be equal to the third region mentioned in the above step S102, or a part of the above third region, that is, the electronic device 100 can output a prompt information to prompt the user to adjust the finger to the specified region, in the case that the region on the user's finger for collecting PPG signals is not the specified region or not located in the specified region. It can be understood that at this time, the third value can be equal to the second value mentioned in step S102.

[0228] The finger distribution map can be a distribution map obtained by the electronic device 100 from other devices, or a distribution map generated by the electronic device 100.

[0229] If the finger distribution map is generated by the electronic device 100, the electronic device 100 can collect the first data of the fourth region on the first finger before or after starting to measure the physiological parameter, for example, before or after collecting the PPG signal of the first region on the first finger, and then generate the finger distribution map based on the first data of the fourth region.

[0230] The first data can be a PPG signal, blood vessel information, or other data.

[0231] The fourth region refers to a region on the first finger covered by the finger distribution map, which should include the first region and the second region, or further include more regions on the first finger. In this way, when the electronic device 100 collects the PPG signal of a certain region on the finger, the user can be guided to adjust to collect the PPG signal of other regions according to the signal quality of the PPG signal of other regions described on the finger distribution map.

[0232] For example, the finger distribution map can include one or more of the following:

[0233] 1) PPG signal distribution map

[0234] If the finger distribution map includes the PPG signal distribution map, the first data mentioned above can include a PPG signal. The electronic device 100 can collect the PPG signal through a PPG module.

[0235] The PPG signal distribution map can record the characteristic information of the PPG signal of multiple regions on the first finger, and the characteristic information is used to indicate the signal quality of the PPG signal.

[0236] In a possible implementation, the characteristic information can be a characteristic value of the PPG signal. For example, the characteristic value can be the amplitude, pulse width, or trough depth difference of the PPG signal. The embodiments of the present application do not limit the characteristic value.

[0237] In another possible implementation, the characteristic information can be a display effect corresponding to the characteristic value of the PPG signal. For example, color, brightness, transparency, and the like. Taking the characteristic information as the color corresponding to the characteristic value of the PPG signal as an example, if the characteristic value of the PPG signal of a certain region is a first value, the color of the region in the PPG signal distribution map is a first color, and if the characteristic value of the PPG signal of a certain region is a second value, the color of the region in the PPG signal distribution map is a second color. That is, the PPG signal distribution map can present the characteristic value of the PPG signal of different regions on the finger in different colors, and the user can intuitively understand the signal quality distribution of the PPG signal of each position on the finger by viewing the color of each pixel or each region in the PPG signal distribution map.

[0238] Fig. 8 is a schematic diagram of a PPG signal distribution map provided by an embodiment of the present application.

[0239] As shown in Fig. 8, the PPG signal distribution map can be presented as a square grid map containing a plurality of cells, each cell corresponding to a skin area on the finger pulp, the grid map can contain m*n cells, for example, the first row of the grid map contains S 11 , S 12 , S 13 , … S 1n n cells, the first column contains S 11 , S 21 , S 31 , … S m1 m cells.

[0240] The PPG signal distribution map can record the characteristic information of the PPG signal corresponding to each cell.

[0241] It should be understood that the PPG signal distribution map shown in Fig. 8 is only an example, and the PPG signal distribution map can also be presented as a circular grid map containing a plurality of cells, and the shape of the PPG signal distribution map is not limited by the embodiments of the present application.

[0242] In the PPG signal distribution map, the PPG signal quality of the second area is higher than that of the first area.

[0243] That is, the electronic device 100 can find the second area with higher PPG signal quality than the first area by displaying the characteristic information of the PPG signal of the plurality of areas on the first finger on the PPG signal distribution map.

[0244] The PPG signal distribution map can be a distribution map generated by the electronic device 100. For example, the electronic device 100 can collect the PPG signals of the plurality of areas on the first finger before or after performing step S101, and then generate the PPG signal distribution map based on the PPG signals of the plurality of areas.

[0245] The electronic device 100 can generate the PPG signal distribution map before performing step S101, that is, the electronic device 100 can obtain the PPG signal distribution map in advance before starting to measure the physiological parameter of the user. In this way, when the electronic device 100 collects the PPG signal for calculating the physiological parameter of the user, the pre-generated PPG signal distribution map can be directly used to guide the user to move the finger to the area with high signal quality.

[0246] Alternatively, the electronic device 100 can generate the PPG signal distribution map after performing step S101, that is, the electronic device 100 can generate the PPG signal distribution map in the process of collecting the PPG signal after starting to measure the physiological parameter of the user, and then output the prompt information based on the PPG signal distribution map after obtaining the PPG signal distribution map, guiding the user to move the finger to the area with high signal quality.

[0247] In some embodiments, the PPG signal of the fourth area required to generate the PPG signal distribution map can be obtained by the electronic device 100 collecting PPG signals multiple times. That is, the electronic device 100 can obtain the PPG signal of the fourth area by collecting PPG signals multiple times.

[0248] In the multiple times, the PPG signal collected each time can be the PPG signal of a part of the fourth area. In this way, the electronic device 100 can collect PPG signals multiple times, and constantly move the finger and adjust the contact area of the finger with the PPG module (hereinafter referred to as the first PPG module) in the process of collecting the PPG signal, so that the electronic device 100 can collect PPG signals of different areas in the front and back two collection processes, thereby obtaining the PPG signal of the fourth area. Exemplarily, FIG. 9 takes the watch shown in FIG. 4 as an example to show a schematic diagram of the electronic device 100 collecting PPG signals.

[0249] In FIG. 9, (a) shows an operation schematic diagram of the electronic device 100 collecting PPG signals on the user's finger.

[0250] As shown in (a) of FIG. 9, the electronic device 100 includes a button module integrated with the first PPG module. When the electronic device 100 collects PPG signals on the user's finger, the user's finger is pressed on the first PPG module. In this way, the electronic device 100 can emit light to the finger pulp of the user's finger through the first PPG module, collect the light reflected back through the skin tissue of the user's finger, and thereby obtain the PPG signal.

[0251] Exemplarily, as shown in (a) of FIG. 9, the first PPG module can include one light source (LED) and one photodetector (PD). In other embodiments of the present application, the first PPG module can also include multiple light sources and / or multiple photodetectors, and the number of light sources and photodetectors included in the first PPG module is not limited in the embodiments of the present application.

[0252] In the process of collecting the PPG signal, the user can move the finger to change the contact area of the finger with the first PPG module when collecting the PPG signal, so that the electronic device 100 can collect PPG signals of multiple areas on the finger pulp.

[0253] In (b) of FIG. 9, the arrow shown in (b) of FIG. 9 shows the moving track of the first PPG module on the finger pulp.

[0254] As shown in (b) of FIG. 9, the arrow shown in (b) of FIG. 9 shows the moving track of the first PPG module on the finger pulp.

[0255] As shown in (b) of FIG. 9, the arrow shown in (b) of FIG. 9 shows the moving track of the first PPG module on the finger pulp.

[0256] For example, during the process of collecting PPG signals by the electronic device 100 multiple times, the electronic device 100 can output second prompt information, which can be used to indicate the area on the first finger where no PPG signal is collected.

[0257] Optionally, the second prompt information can also be used to prompt the user to move the finger to a specified direction or position. For example, the second prompt information can be: "move the finger slightly upward".

[0258] Optionally, the second prompt information can also be used to prompt the user that the PPG signal has been collected after enough PPG signals are collected.

[0259] In this way, the user can move the finger to the specified direction through the prompt information, which helps the electronic device 100 to quickly fill in the PPG signals of each area on the finger, reduces the number of times of collecting PPG signals by the electronic device 100 in the process of generating the PPG signal distribution map, and accelerates the speed of generating the PPG signal distribution map by the electronic device 100.

[0260] For example, during the process of collecting PPG signals by the electronic device 100, a voice prompt can be output to prompt the user to move the finger to a specified direction.

[0261] For example, taking interface display as an example, FIG. 10 shows a schematic diagram displayed by the electronic device 100 when collecting PPG signals required by the PPG signal distribution map.

[0262] For example, taking interface display as an example, FIG. 10 shows a schematic diagram displayed by the electronic device 100 when collecting PPG signals required by the PPG signal distribution map.

[0263] In the schematic diagram shown in FIG. 10, the grid of dashed lines represents the area on the finger pulp where no PPG signal is collected, and the grid of solid lines represents the area on the finger pulp where PPG signal is collected.

[0264] When the electronic device 100 displays the schematic diagram shown in (c) in FIG. 10, it indicates that the electronic device 100 has collected the PPG signal of the fourth area.

[0265] In some embodiments, during the process of continuously collecting PPG signals of each area, if there is a misidentification of the area where the PPG signal has been collected in history, the line of the area in the grid diagram that has been converted can be returned from solid to dashed, prompting the user to collect the PPG signal of the area again.

[0266] As can be seen, the electronic device 100 can guide the user to move the finger in the specified direction by displaying the schematic diagram shown in FIG. 10, thereby speeding up the speed of collecting PPG signals required by the electronic device 100 to generate the PPG signal distribution diagram.

[0267] It can be understood that FIG. 10 is only an example, and in addition to the honeycomb grid diagram shown in FIG. 10, a square grid diagram, a diamond grid diagram, etc. can also be displayed, and the embodiments of the present application do not limit this. In addition, in addition to dividing the uncollected area and the collected area by changing the solid and dashed lines, it can also be divided by color, for example, a black line can be used to represent the uncollected area, and a red line can be used to represent the collected area, and the embodiments of the present application do not limit this.

[0268] For details about the process of the electronic device 100 displaying the schematic diagram shown in FIG. 10 on the interface, please refer to the related description of subsequent FIGS. 16C-16F.

[0269] In a specific example, the PPG module used by the electronic device 100 to collect the PPG signal of the fourth area, and the PPG module used to collect the PPG signal of the first area or the second area when measuring the physiological parameter can be one, i.e., the first PPG module. In this way, whether it is necessary to collect PPG signals for actual measurement of physiological parameters, or it is necessary to collect PPG signals for generating a PPG signal distribution diagram, the user only needs one PPG module to complete the collection of PPG signals, reducing the user's trouble of adjusting the measurement posture back and forth.

[0270] It can be understood that for details about the electronic device 100 collecting the PPG signal of the first area on the first finger in step S101, and the electronic device 100 collecting the PPG signal of the second area on the first finger in step S104, the user's operation schematic diagram can refer to (a) in FIG. 9 described above.

[0271] In some embodiments, the PPG signal of the fourth region required for generating the PPG signal distribution map can be obtained by the electronic device 100 collecting a PPG signal once. That is, the PPG signal of the fourth region can be obtained by the electronic device 100 collecting a PPG signal once.

[0272] In this case, the light coverage area of the PPG module (hereinafter referred to as the second PPG module) used by the electronic device 100 to collect the PPG signal of the fourth region should be greater than or equal to the area corresponding to the first finger on the PPG signal distribution map. In this way, when the user's finger covers the PPG module, the light emitted by the light source of the PPG module can cover most of the area on the finger, i.e., the fourth region, and the electronic device 100 can obtain the PPG signal of the fourth region by collecting a PPG signal once.

[0273] Exemplarily, FIG. 11 takes the watch shown in FIG. 4 as an example of the electronic device 100, and shows a schematic diagram of the electronic device 100 collecting a PPG signal.

[0274] In FIG. 11, (a) shows a schematic diagram of the electronic device 100 collecting a PPG signal on the user's finger.

[0275] As shown in (a) of FIG. 11, the second PPG module is located at the bottom of the dial of the electronic device 100. When the electronic device 100 collects a PPG signal on the user's finger, the user's finger is pressed on the second PPG module. In this way, the electronic device 100 can emit light to the user's finger via the second PPG module, collect the light reflected by the user's finger skin tissue, and thus obtain a PPG signal.

[0276] In FIG. 11, (b) shows a schematic diagram of the contact area between the second PPG module and the user's finger.

[0277] Exemplarily, as shown in (b) of FIG. 11, the second PPG module can include four light sources and four photodetectors, and the light sources and photodetectors are arranged around the center of the dial. Compared with the PPG module including one light source, more light sources make the light coverage area of the second PPG module larger.

[0278] When the light coverage area of the second PPG module is greater than the area corresponding to the first finger on the PPG signal distribution map, the user does not need to move the contact area between the finger and the first PPG module when collecting the PPG signal required for generating the PPG signal distribution map.

[0279] Compared with the first PPG module shown in FIG. 9, the light coverage area of the second PPG module is greater than the light coverage area of the first PPG module.

[0280] In one specific example, in combination with the first PPG module shown in FIG. 9 and the second PPG module shown in FIG. 11, the PPG signals required for generating the PPG signal distribution diagram can be collected by the second PPG module, and the PPG signals required for measuring the physiological parameters, such as the PPG signals of the first region and the PPG signals of the second region, can be collected by the first PPG module. In this way, the electronic device 100 can quickly generate the PPG signal distribution diagram by performing only one or a small number of collection operations when collecting the PPG signals using the PPG module at the bottom of the watch face, and can quickly collect the PPG signals and calculate the current physiological parameters of the user by pressing the finger against the side of the watch when actually measuring the physiological parameters of the user.

[0281] It can be understood that even if the light coverage area of the second PPG module can cover the fourth region on the first finger, the electronic device 100 can still generate the PPG signal distribution diagram using the PPG signals collected multiple times, because the PPG signals collected once can have the problem of inaccurate or incomplete signals collected in some regions, and therefore the electronic device 100 can obtain more accurate and complete PPG signals on the fourth region by collecting the PPG signals multiple times.

[0282] In other embodiments of the present application, the light coverage area of the second PPG module can also be equal to the light coverage area of the first PPG module, which is not limited in the embodiments of the present application.

[0283] In some embodiments, when the electronic device 100 collects the PPG signals for generating the PPG signal distribution diagram, the electronic device 100 can also output prompt information to prompt the user whether the pressing pressure of the first finger is appropriate during the collection of the PPG signals. For details about the determination of the pressing pressure and the prompt information, reference can be made to the related content of FIGS. 6 and 7 described above, which will not be described herein again.

[0284] 2) Blood vessel distribution diagram

[0285] The blood vessel distribution diagram describes the blood vessel distribution of the first finger. The blood vessels can include one or more of the following: arterial blood vessels, venous blood vessels, and capillary blood vessels.

[0286] For example, FIG. 12 is a schematic diagram of the blood vessel distribution diagram provided by the embodiments of the present application.

[0287] As can be seen from FIG. 12, the blood vessels in different regions of the finger present different density states. Among them, the denser the arrangement of the blood vessels, the higher the signal quality of the PPG signals collected.

[0288] Among them, in the blood vessel distribution diagram, the number of blood vessels in the second region is greater than the number of blood vessels in the first region.

[0289] That is, the electronic device 100 can find a second region having more blood vessels than the first region by the blood vessel distribution on the first finger displayed on the blood vessel distribution map.

[0290] The blood vessel distribution map can be generated by the electronic device 100 or obtained by the electronic device 100 from other devices.

[0291] For example, the electronic device 100 can emit light to the first finger, and generate the blood vessel distribution map by obtaining the reflected light. This is because the blood flowing in the finger can absorb light of a specific wavelength, and thus the distribution of the light reflected by the skin can be used to identify the blood vessel distribution map of the user's finger.

[0292] For example, the electronic device 100 can emit infrared light to the finger, and since only the venous part has weak reflection when the infrared light is irradiated to the finger, the venous distribution map of the user's finger can be generated by obtaining the reflected light.

[0293] The light source for emitting light can be a light source in a PPG module or other light-emitting device on the electronic device 100.

[0294] The embodiment of the present application does not limit the generation method of the blood vessel distribution map.

[0295] If the blood vessel distribution map is generated by the electronic device 100, the electronic device 100 can generate the blood vessel distribution map before or after performing step S101, similar to the description of the PPG signal distribution map.

[0296] In addition, if the blood vessel distribution map is generated by the electronic device 100, the electronic device 100 can display a diagram similar to that shown in FIG. 10 to prompt the user to the region on the finger where no blood vessel information is collected during the generation of the blood vessel distribution map. In addition, the grid diagram shown in FIG. 10 can also replace the preset blood vessel map, and the electronic device 100 can distinguish the region where no blood vessel information is collected in the blood vessel distribution map by displaying a dashed line and implementation.

[0297] In some embodiments, the electronic device 100 can obtain a finger distribution map of one or more fingers of the user. For example, the electronic device 100 can collect PPG signals on multiple fingers of the user in advance before measuring the physiological parameters of the user, and generate PPG signal distribution maps corresponding to the multiple fingers respectively.

[0298] In this way, when the electronic device 100 measures the physiological parameters of the user, it is not necessary to limit the use of only one finger to measure the physiological parameters, and the flexibility of user operation when collecting PPG signals is improved.

[0299] Further optionally, if the electronic device 100 has stored a plurality of finger distribution maps of fingers before measuring the physiological parameter of the user, the first finger can be a finger determined by the electronic device 100 according to the finger distribution map of the plurality of fingers, for example, the area of the region with high signal quality on the finger distribution map of the first finger is the largest or the proportion of the region with high signal quality on the finger distribution map of the first finger is the largest compared to the finger distribution maps of other fingers.

[0300] In this way, the electronic device 100 can output prompt information to prompt the user to select the first finger to collect the PPG signal before starting to measure the physiological parameter, and guide the user to use the finger with the best PPG signal collection effect to measure the physiological parameter, thereby facilitating the electronic device 100 to collect the PPG signal with high signal quality as soon as possible.

[0301] In some scenarios, if the finger distribution map is generated by the electronic device 100, the electronic device 100 can initiate collection of data required for entering the finger distribution map after detecting the entry operation of the user. The entry of the finger distribution map by the electronic device 100 can be completed in multiple times. For example, after the user enters part of the data required for the finger distribution map, the part of the data is stored first, and then the entry of the finger distribution map is continued to obtain the remaining data required for the finger distribution map.

[0302] This is because the user may need to interrupt the entry of the finger distribution map when there are other matters to be handled (such as answering the phone), and therefore the electronic device 100 can reserve the entry progress of the current finger distribution map, and continue to complete the entry of the finger distribution map when the user initiates the entry operation again.

[0303] For example, during the multiple entries of the finger distribution map, when the data of the repeated positions on the finger is collected, the fusion of the data entered before and after can be achieved by alignment or splicing to realize the generation of the finger distribution map.

[0304] It can be understood that the electronic device 100 can also determine the second region in combination with the PPG signal distribution map and the blood vessel distribution map, so that the second region not only has more blood vessels than the first region, but also has a higher signal quality of the PPG signal collected in the second region than the signal quality of the PPG signal collected in the first region, so as to ensure that the electronic device 100 collects the PPG signal with high quality as much as possible.

[0305] For example, the electronic device 100 can display the finger distribution map during the measurement of the physiological parameter, so that the user can understand the actual situation of the finger used to collect the PPG signal. For details, please refer to the related descriptions of FIGS. 14A-14F and 15A-15C.

[0306] In some embodiments, in order to improve the accuracy of the electronic device 100 in identifying different regions on the finger, the electronic device 100 can introduce the fingerprint of the finger to better identify different regions on the finger.

[0307] Since the electronic device 100 collects the PPG signal of a region on the finger, it needs to know which position on the finger the region is located in, in order to accurately find the region with high signal quality on the finger distribution map and guide the user to adjust the finger to that region.

[0308] For example, the electronic device 100 can collect the fingerprint of the first region on the first finger during the process of collecting the PPG signal of the first region on the first finger. In this way, the electronic device 100 can know which position on the finger the region currently collecting the PPG signal is located in according to the fingerprint and the fingerprint map of the first finger. The position of the first region on the first finger is the same as the position of the fingerprint of the first region on the fingerprint map of the first finger.

[0309] Further, each position on the fingerprint map of the first finger can correspond to each position on the finger distribution map of the first finger. In this way, after the electronic device 100 obtains the fingerprint of a certain region, it can find the position of the fingerprint of the region on the fingerprint map through the fingerprint, and then according to the corresponding relationship between the fingerprint map and the finger distribution map, it can know the position of the region on the finger distribution map.

[0310] For example, FIG. 13 is a schematic diagram of a fingerprint map provided by an embodiment of the present application.

[0311] For example, the fingerprint map of the first finger can be collected by the electronic device 100 or received by the electronic device 100. For example, if the electronic device 100 is a watch, the electronic device 100 can obtain the fingerprint map of the first finger entered by the user on the mobile phone.

[0312] In one implementation, the electronic device 100 can include a fingerprint sensor and a third PPG module, wherein the fingerprint sensor and the third PPG module can be integrated on one device. In this way, when the electronic device 100 collects the PPG signal of a certain region on the finger through the third PPG module, the fingerprint sensor can synchronously collect the fingerprint of the region. For example, the PPG signal of the first region is collected by the third PPG module, and the fingerprint of the first region is collected by the fingerprint sensor.

[0313] In combination with the first PPG module mentioned in the above FIG. 9 and the second PPG module mentioned in the above FIG. 11, the third PPG module can be the same device as the first PPG module or the second PPG module, or the third PPG module can be different from the first PPG module and the second PPG module.

[0314] Exemplarily, if the electronic device 100 is the watch shown in FIG. 4, the fingerprint sensor and the third PPG module can be integrated on the key module.

[0315] Exemplarily, if the fingerprint image of the first finger is collected by the electronic device 100, the electronic device 100 can output prompt information in the process of collecting the fingerprint, and the prompt information can be used to indicate the area of the first finger on which the fingerprint is not collected.

[0316] Similar to the related description in the generation of the PPG signal distribution map by the electronic device 100, the prompt information output by the electronic device 100 in the process of collecting the fingerprint can refer to FIG. 10, which will not be described here. In addition, the grid map shown in FIG. 10 can also replace the preset fingerprint image, and the electronic device 100 can distinguish the area of the fingerprint image on which the fingerprint is not collected by displaying the dashed line and implementation.

[0317] The related user interfaces involved in the embodiments of the present application will be introduced below in combination with FIGS. 14A-14F, 15A-15C, 16A-16F.

[0318] FIGS. 14A-14F take the measured physiological parameter as blood pressure as an example, and show the related user interfaces displayed by the electronic device 100 in the process of measuring blood pressure.

[0319] FIG. 14A is a user interface 10 displayed by the electronic device 100 provided by the embodiments of the present application, which can include a blood pressure measurement option 101, which can be used to trigger the measurement of the user's blood pressure.

[0320] When the electronic device 100 detects a user operation, such as a click operation, acting on the blood pressure measurement option 101, in response to the operation, the electronic device 100 can display the user interface 20 shown in FIG. 14B, which can be used to show the correct posture when measuring blood pressure to the user.

[0321] As shown in FIG. 14B, the user interface 20 can include prompt information 201. Wherein, the prompt information 201 can be used to indicate the correct posture when measuring blood pressure. Exemplarily, the prompt information 201 can be "Please place your finger on the key on the side of the watch when measuring".

[0322] Exemplarily, the electronic device 100 can display the user interface 20 for a period of time, for example, 4s, and then start measuring the user's blood pressure and display the user interface 30 shown in FIG. 14C. Exemplarily, the electronic device 100 can detect that the user is in the correct posture for measuring blood pressure (for example, detect that the user's finger is placed on the key on the side of the watch) for a period of time, for example, 4s, and then start measuring the user's blood pressure and display the user interface 30 shown in FIG. 14C.

[0323] It can be understood that the user interface 20 shown in FIG. 14B can be displayed when the user measures the blood pressure for the first time. When the user measures the blood pressure again, the user interface 20 shown in FIG. 14B can no longer be displayed, that is, the electronic device 100 can directly start the blood pressure measurement after detecting the user operation on the blood pressure measurement option 101 shown in FIG. 14A, and display the user interface 30 shown in FIG. 14C.

[0324] In specific implementations, during the process in which the electronic device 100 starts to measure the blood pressure of the user, the finger of the user can be attached to the PPG module of the electronic device 100. The electronic device 100 can collect the PPG signal on the finger of the user through the PPG module, and then calculate the blood pressure of the user by using the collected PPG signal.

[0325] Exemplarily, in the user interfaces shown in FIGS. 14A-14F, the electronic device 100 takes the watch shown in FIG. 4 as an example, and when the electronic device 100 collects the PPG signal, takes the operation schematic diagram shown in (a) of FIG. 9 as an example. That is, the electronic device 100 can collect the PPG signal required for measuring the blood pressure through the first PPG module on the side of the watch.

[0326] It should be understood that in other embodiments of the present application, the electronic device 100 can also be other types of devices, the PPG module can also be located at other positions of the electronic device 100, and the user can also collect the PPG signal through other postures, which are not limited in the embodiments of the present application.

[0327] As shown in FIG. 14C, the user interface 30 can include a region indication diagram 301 and prompt information 302. The region indication diagram 301 can include a blood vessel distribution diagram 301A and a mark 301B. The mark 301B can be used to indicate the contact region between the finger pulp of the user and the PPG module. The prompt information 302 can be used to prompt that the electronic device 100 is measuring the blood pressure and please keep still. Exemplarily, the prompt information 302 can be “Measuring, please keep still…”.

[0328] In combination with the above steps S101-S104, the contact region indicated by the mark 301B shown in FIG. 14C can refer to the first region mentioned in step S101.

[0329] It can be understood that the background image in the region indication diagram 301 can be displayed as other finger indication diagrams, such as a finger fingerprint diagram, a PPG signal distribution diagram, and the like, in addition to the finger tip blood vessel distribution diagram 301A shown in FIG. 14C, or the background image can be a superposition of multiple indication diagrams, for example, a diagram obtained by superimposing a blood vessel distribution diagram and a fingerprint diagram, or a diagram obtained by superimposing a PPG signal distribution diagram and a fingerprint diagram. The background image displayed in the region indication diagram 301 can be an indication diagram generated by the electronic device 100 according to the real finger information of the user, or can be a template diagram preset by the system, and the present embodiment does not limit this. The subsequent description related to the region indication diagram is similar, and will not be described again hereinafter.

[0330] Optionally, the user interface 30 shown in FIG. 14C can further display a blood pressure value calculated by the electronic device 100 in real time according to the collected PPG signal.

[0331] Further, in the internal implementation, if the electronic device 100 identifies that the currently collected PPG signal does not meet the preset requirement, the electronic device 100 can display the user interface 40 shown in FIG. 14D, which can be used to prompt the user to change the contact area of the user's finger with the PPG module.

[0332] As shown in FIG. 14D, the user interface 40 can include prompt information 401 and a re-measurement option 402. The prompt information 401 can be used to prompt the user that the quality of the currently collected PPG signal is poor. Exemplarily, the prompt information 401 can be "The quality of the collected PPG signal is poor. Please lift the finger to re-contact the key, or wipe the finger skin and keep the key clean. The re-measurement option 402 can be used to trigger the re-collection of the PPG signal and the measurement of the blood pressure of the user.

[0333] It can be understood that the electronic device 100 can also not need to identify whether the signal quality of the collected PPG signal meets the preset requirement in the process of collecting the PPG signal. After the electronic device 100 collects the PPG signal of one area on the finger, the electronic device 100 can prompt the user to adjust the area on the finger for collecting the PPG signal. In this way, after the electronic device 100 collects the PPG signals of multiple areas on the finger, the electronic device 100 can select the PPG signal with the best signal quality from the multiple areas to calculate the blood pressure of the user.

[0334] When the electronic device 100 detects a user operation, such as a click operation, acting on the re-measurement option 402, in response to the operation, the electronic device 100 can continue to collect the PPG signal on the user's finger through the PPG module. If the collected PPG signal meets the preset requirement, the electronic device 100 can display the user interface 30 shown in FIG. 14E.

[0335] As shown in FIG. 14E, the user interface 30 can include: a region indication diagram 301, a prompt information 303. Wherein, the region indication diagram 301 can include: a blood vessel distribution diagram 301A, a mark 301C. Wherein, the mark 301C can be used to indicate the contact area of the finger pulp of the user with the PPG module. The prompt information 303 can be used to prompt the user that the PPG signal currently collected by the user is of good quality. Exemplarily, the prompt information 303 can be "PPG signal quality is good, please keep…".

[0336] In combination with the above steps S101-S104, the contact area indicated by the mark 301C shown in FIG. 14E can refer to the second area mentioned in step S104.

[0337] It can be understood that, if the PPG signal re-collected by the electronic device 100 after the user adjusts the area of the finger for collecting the PPG signal still does not meet the preset requirement, the electronic device 100 can continue to display the user interface 40 shown in FIG. 14D to prompt the user to adjust the area of the finger for collecting the PPG signal, or to wipe the finger and keep the button clean, etc., until the electronic device 100 collects the PPG signal meeting the preset requirement, then the collection of the PPG signal can be ended, and the blood pressure of the user can be calculated.

[0338] Exemplarily, in the process that the electronic device 100 displays the user interface 30 shown in FIG. 14E, if the electronic device 100 collects PPG signals of high enough signal quality, the electronic device 100 can use these PPG signals to calculate the blood pressure of the user, and display the user interface 50 shown in FIG. 14F, which can be used to show the blood pressure related values of the user measured by the electronic device 100.

[0339] As shown in FIG. 14F, the user interface 50 can be used to show the values of the high pressure, the low pressure and the pulse calculated by the electronic device 100 according to the collected PPG signals.

[0340] As can be seen from FIGS. 14A-14F, after the user initiates the blood pressure measurement, the electronic device 100 can collect the PPG signal on the finger of the user, and prompt the user to adjust the area of the finger for collecting the PPG signal, and then collect the PPG signal on the finger after the user adjusts the finger, so that the electronic device 100 can collect the PPG signal on the area of good signal quality.

[0341] Further, when the electronic device 100 prompts the user to adjust the area of the finger for collecting the PPG signal, the electronic device 100 can prompt the user to adjust the finger to a specified direction or position in the process of prompting.

[0342] Exemplarily, the above FIG. 14D can be replaced by FIG. 15A, which is a user interface 30 displayed by the electronic device 100 in a case where it is detected that the currently collected PPG signal does not meet the requirement, and the user interface 30 can include: a region indication diagram 304, and prompt information 305. Wherein:

[0343] The region indication diagram 304 can include: a blood vessel distribution diagram 304A, and a mark 304B and a mark 304C located on the blood vessel distribution diagram. Wherein, the blood vessel distribution diagram 304A can be a blood vessel distribution diagram generated by the electronic device 100 according to the blood vessel distribution on the user's finger, the mark 304B can be used to indicate the contact position of the finger on the PPG module in the PPG signal collection process shown in FIG. 14C, and the mark 304C can be used to indicate the specified position determined by the electronic device 100. The specified position can be a region where the number of blood vessels on the finger is relatively dense, which is determined by the electronic device 100 according to the blood vessel distribution diagram of the finger.

[0344] In addition, the region indication diagram 304 can also include an arrow pointing from the mark 304B to the mark 304C.

[0345] The prompt information 305 can be used to prompt the user to adjust the contact area of the finger on the PPG module according to the mark in the region indication diagram 304. Exemplarily, the prompt information 305 can be "PPG signal quality is poor, please move the finger to the indicated direction".

[0346] As can be seen from FIG. 15A, when the electronic device 100 collects a PPG signal with poor signal quality, the electronic device 100 can output prompt information to prompt the user to adjust the finger in a specified direction or position, so as to avoid the user from blindly moving the finger, so that the electronic device 100 can quickly obtain a PPG signal with high signal quality.

[0347] It can be understood that the blood vessel distribution diagram 304A in the region indication diagram 304 can also be replaced by other finger distribution diagrams, such as PPG signal diagrams, fingerprint diagrams, etc., and can also be a superimposed diagram of multiple finger distribution diagrams.

[0348] Exemplarily, FIG. 15B shows a user interface when the blood vessel distribution diagram 304A is replaced by a PPG signal distribution diagram, wherein in the user interface shown in FIG. 15B, the PPG signal distribution diagram can be presented as a rectangular grid diagram, wherein a cell in the grid diagram corresponds to a small area on the finger, and different colors of the cell are used to indicate the signal quality of the PPG signal collected in the cell. For example, the darker the cell color, the higher the signal quality of the PPG signal collected in the cell, and the lighter the cell color, the lower the signal quality of the PPG signal collected in the cell.

[0349] In some embodiments, considering that the pressing force of the user's finger also affects the signal quality of the PPG signal, therefore, during the process of collecting the PPG signal by the electronic device 100, the electronic device 100 can also output prompt information in time when the finger pressing pressure is too large or too small, reminding the user to control the pressing force.

[0350] Exemplarily, taking FIG. 14C as an example, during the process of collecting the PPG signal by the electronic device 100, if the electronic device 100 detects that the finger pressing pressure is too large, the user interface 30 shown in FIG. 14C can be updated to the user interface 30 shown in (a) of FIG. 15C. Compared with FIG. 14C, in the user interface 30 shown in (a) of FIG. 15C, the color of the mark 301B is darker, and in addition, the user interface 30 shown in (a) of FIG. 15C further includes prompt information 306, which can be used to prompt the user that the current finger pressing pressure is too large. Exemplarily, the prompt information 306 can be “The pressure is too large, please slightly lift the finger”. Alternatively, during the process of collecting the PPG signal by the electronic device 100, if the electronic device 100 detects that the finger pressing pressure is too small, the user interface 30 shown in FIG. 14C can be updated to the user interface 30 shown in (b) of FIG. 15C. Compared with FIG. 14C, in the user interface 30 shown in (b) of FIG. 15C, the color of the mark 301B is lighter, and in addition, the user interface 30 shown in (b) of FIG. 15C further includes prompt information 307, which can be used to prompt the user that the current finger pressing pressure is too small. Exemplarily, the prompt information 307 can be “The pressure is too small, please slightly increase the pressing force”.

[0351] It should be understood that FIG. 15C is described by taking the measurement process shown in FIG. 14C as an example to describe the changes presented in the user interface when the finger pressing pressure is too large or too small, during the process of collecting the PPG signal again after the user adjusts the finger position, and during the process of collecting the PPG signal when generating the PPG signal distribution diagram. The electronic device 100 can also recognize the pressing pressure of the user's finger and output prompt information in time according to the pressing pressure to remind the user to control the pressing pressure within a suitable range.

[0352] FIGS. 16A-16F show related user interfaces involved in the process of generating the PPG signal distribution diagram by the electronic device 100 of the electronic device.

[0353] As shown in FIG. 16A, the user interface 60 can include an entry option 101. The entry option 101 can be used to trigger the electronic device 100 to start collecting the PPG signal required for generating the PPG signal distribution diagram.

[0354] When the electronic device 100 detects a user operation, e.g., a tapping operation, acting on the entry option 101, in response to the operation, the electronic device 100 can display the user interface 70 shown in FIG. 16B, which can be used to prompt the user to select a finger for entering the PPG signal profile.

[0355] As shown in FIG. 16B, the electronic device 100 can provide the user with the option of selecting a left hand or a right hand, and the option of a finger, through the user interface 70, by which the user can select a finger on the left hand or a finger on the right hand, and further select one of the thumb, the index finger, the middle finger, the ring finger, and the little finger.

[0356] It can be understood that, in addition to the finger for entering the PPG signal profile being selected by the user, the electronic device 100 can also determine the finger for entering the PPG signal profile, and the electronic device 100 can output prompt information prompting the user to select the finger specified by the device for entering the PPG signal profile.

[0357] After determining the finger for entering the PPG signal profile by the user, the electronic device 100 can start to collect the PPG signal required for entering the PPG signal profile, and display the user interface 80 shown in FIG. 16C, which can be used to show the area on the finger where the PPG signal is not collected.

[0358] As shown in FIG. 16C, the user interface 80 can include a schematic diagram 801, and prompt information 802. Among them:

[0359] The entire area in the schematic diagram 801 can be used to indicate the coverage area of the PPG signal profile on the finger, and in the process of the electronic device 100 collecting the PPG signal required for generating the PPG signal profile, the area in the PPG signal profile where the PPG signal has been collected, the line at the corresponding position on the schematic diagram 801 will change from a dashed line to a solid line, so that the user can understand the area in the PPG signal profile where the PPG signal has been collected, and the area where the PPG signal has not been collected, through the schematic diagram 801.

[0360] The prompt information 802 can be used to instruct the user to repeatedly lift the finger and place the finger on the key several times, so that the electronic device 100 can collect the PPG signal of different areas on the finger. Exemplarily, the prompt information 802 can be “Please place the finger on the key, lift it after vibration, and repeat this step”.

[0361] Exemplarily, in the process of the user repeatedly lifting the finger and placing the finger on the key, the electronic device 100 can update the schematic diagram 801 shown in FIG. 16C to the schematic diagrams 801 shown in FIGS. 16D-16F in turn.

[0362] As shown in FIG. 16D, compared with the schematic diagram 801 shown in FIG. 16C, in the schematic diagram 801 shown in FIG. 16D, some of the dashed lines are updated to solid lines, and the area corresponding to the solid lines is the area where the electronic device 100 collects the PPG signal on the finger.

[0363] In addition, the user interface 80 shown in FIG. 16D further includes prompt information 803, which can be used to prompt the user to move the finger in a specified direction or position. For example, the prompt information 803 shown in FIG. 16D can be used to prompt the user to move the finger downward. Exemplarily, the prompt information 803 can be "Move your finger slightly downward".

[0364] Further, after the electronic device 100 collects the PPG signal of more areas on the finger, the electronic device 100 can update the user interface 80 shown in FIG. 16D to the user interface 80 shown in FIG. 16E.

[0365] As shown in FIG. 16E, compared with the schematic diagram 801 shown in FIG. 16D, in the schematic diagram 801 shown in FIG. 16E, more dashed lines are updated to solid lines.

[0366] In addition, the user interface 80 shown in FIG. 16E further includes prompt information 804, which can be used to prompt the user to move the finger in a specified direction or position. For example, the prompt information 804 shown in FIG. 16E can be used to prompt the user to move the finger to the right. Exemplarily, the prompt information 804 can be "Move your finger slightly to the right".

[0367] Further, after the electronic device 100 collects the PPG signal of the finger area required by the PPG signal distribution diagram, the electronic device 100 can update the user interface 80 shown in FIG. 16E to the user interface 80 shown in FIG. 16F.

[0368] As shown in FIG. 16F, compared with the schematic diagram 801 shown in FIG. 16E, in the schematic diagram 801 shown in FIG. 16F, all the lines are updated to solid lines.

[0369] In addition, the user interface 80 shown in FIG. 16F further includes prompt information 805, which can be used to prompt the user that the PPG signal distribution diagram has been recorded, and the electronic device 100 has generated the PPG signal distribution diagram according to the PPG signal of each area on the user's finger. Exemplarily, the prompt information 805 can be "Recorded!".

[0370] It can be understood that FIGS. 16A-16F show the related user interface of the electronic device 100 generating the PPG signal distribution diagram, and the user interface displayed when the electronic device 100 generates the fingerprint diagram and the blood vessel distribution diagram is similar, which will not be described here.

[0371] In addition, the schematic diagram 801 shown in FIGS. 16C-16F can be a square grid diagram or other schematic diagram, in which the electronic device 100 can replace the schematic diagram 801 with the fingerprint diagram when generating the fingerprint diagram, and replace the schematic diagram 801 with the blood vessel distribution diagram when generating the blood vessel distribution diagram.

[0372] It should be noted that FIGS. 16A-16F are examples of collecting PPG signals by taking the electronic device 100 as the watch shown in FIG. 4 and taking the schematic diagram shown in (a) of FIG. 9 as an example. That is, the electronic device 100 can collect PPG signals required for generating a PPG signal distribution diagram through the first PPG module on the side of the watch. It can be understood that the electronic device 100 can also collect PPG signals required for generating a PPG signal distribution diagram through the second PPG module on the back of the watch, and in a possible implementation, the user can be prompted to move the finger or complete the input by outputting voice or vibration, which will not be described herein.

[0373] It should be understood that in other embodiments of the present application, the electronic device 100 can also be other types of devices, the PPG module can also be other positions of the electronic device 100, and the user can also collect PPG signals by other postures, which are not limited in the embodiments of the present application.

[0374] In addition, the above-mentioned FIGS. 14A-14F, 15A-15B, 16A-16F take the electronic device 100 as a watch for example, in actual application, the watch can be used as a device for collecting PPG signals, and various prompt information on the interface can be displayed by a mobile phone in communication connection with the watch, that is, the display content shown in the above-mentioned FIGS. 14A-14F, 15A-15B, 16A-16F can be displayed by the mobile phone, which is not limited in the embodiments of the present application.

[0375] It should be understood that the above-mentioned FIGS. 14A-14F, 15A-15B, 16A-16F are only interfaces for better understanding the implementation of the scheme, and the controls and layouts contained in the interfaces do not constitute a limitation on the embodiments of the present application.

[0376] FIG. 17 is a flow diagram of another collection method provided by the embodiments of the present application.

[0377] S201. The electronic device 100 displays a first interface, and the first interface is used to prompt the user to collect PPG signals on a first finger.

[0378] Exemplarily, the first interface can refer to the user interface 20 shown in FIG. 14B.

[0379] Exemplarily, the electronic device 100 can display the first interface after detecting a user operation of starting a physiological parameter measurement by the user.

[0380] Taking blood pressure as an example of the physiological parameter, referring to FIG. 14A, the user operation can refer to a user operation acting on the blood pressure measurement option 101.

[0381] In some embodiments, the first interface can also be used to prompt the user to adopt a correct posture for collecting the PPG signal, and / or to collect a specified finger for the PPG signal.

[0382] S202. The electronic device 100 collects a PPG signal of a first region on a first finger.

[0383] In this regard, the electronic device 100 can collect the PPG signal of the first region on the first finger by the PPG module.

[0384] Exemplarily, during the process of collecting the PPG signal of the first region on the first finger by the electronic device 100, the electronic device 100 can also display a first distribution diagram and display a first mark on the first distribution diagram, the first distribution diagram can be used to indicate the first finger, and the first mark can be used to indicate the first region.

[0385] Referring to FIG. 14C, the first distribution diagram can refer to a blood vessel distribution diagram 301A, and the first mark can refer to a mark 301B.

[0386] Exemplarily, the first distribution diagram can be a preset finger indication diagram of the electronic device 100, or a finger distribution diagram generated according to data of the first finger.

[0387] In this way, during the process of collecting the PPG signal by the electronic device 100, the user can intuitively understand the region on the user's finger for collecting the PPG signal through the first distribution diagram and the first mark displayed on the first distribution diagram.

[0388] In addition, if the first distribution diagram is a finger distribution diagram generated by the electronic device 100 according to data of the first finger, the first distribution diagram also represents a signal quality distribution diagram of the PPG signal of the multiple regions on the first finger of the user.

[0389] In this way, when the user views the first distribution diagram, the user can also clearly understand the region with high PPG signal quality and the region with poor PPG signal quality on the first finger of the user through the first distribution diagram, and has a clearer cognition of the distribution of the PPG signal quality on the user's finger.

[0390] In this regard, the first distribution diagram can include one or more of the following:

[0391] 1) PPG signal distribution diagram

[0392] The PPG signal distribution map records feature information of PPG signals of multiple regions on the first finger, and the feature information can be used to indicate signal quality of the PPG signals. In the PPG signal distribution map, the PPG signal quality of the second region is higher than the PPG signal quality of the first region.

[0393] Exemplarily, the PPG signal distribution map can refer to the rectangular grid diagram shown in FIG. 15B.

[0394] If the PPG signal distribution map is a finger distribution map generated according to data of the first finger, the PPG signal distribution map can be a distribution map obtained by the electronic device 100 from other devices, or a distribution map generated by the electronic device 100.

[0395] 2) Blood vessel distribution map

[0396] The blood vessel distribution map describes the blood vessel distribution of the first finger. In the blood vessel distribution map, the number of blood vessels of the second region is greater than the number of blood vessels of the first region.

[0397] Exemplarily, the blood vessel distribution map can refer to the blood vessel distribution map 301A shown in FIG. 14C.

[0398] If the blood vessel distribution map is a finger distribution map generated according to data of the first finger, the blood vessel distribution map can be a distribution map obtained by the electronic device 100 from other devices, or a distribution map generated by the electronic device 100.

[0399] In some embodiments, in the process in which the electronic device 100 collects the PPG signal of the first region on the first finger, the color of the first mark can change with the pressing force of the first finger.

[0400] In this way, the user can understand the change of the pressing force of the user's finger according to the color change of the first mark.

[0401] In addition, in the process in which the electronic device 100 collects the PPG signal of the first region on the first finger, the electronic device 100 can also display third prompt information, which can be used to indicate whether the pressing force of the first finger is appropriate.

[0402] In this way, the user can timely adjust the pressing force of the finger during the collection of the PPG signal, and try to ensure that the pressing force of the finger is in an appropriate range.

[0403] S203. The electronic device 100 displays first prompt information, and the first prompt information is used to prompt the user to adjust a region on the first finger for collecting the PPG signal.

[0404] In this case, the first prompt information can be the prompt information 401 shown in FIG. 14D, or the first prompt information can be used to prompt the user to adjust the area on the finger for collecting the PPG signal to a specified direction or a specified position. In this case, the first prompt information can include the prompt information 305 shown in FIG. 15A.

[0405] If the first prompt information is used to prompt the user to adjust the area on the finger for collecting the PPG signal to a specified direction or a specified position, in combination with the first distribution map, the first prompt information can include a second mark displayed on the first distribution map, where the second mark can be used to indicate the second area.

[0406] Exemplarily, the second mark can be the mark 304C shown in FIG. 15A.

[0407] Further optionally, the first prompt information further includes prompt information pointing from the first mark to the second mark.

[0408] Exemplarily, the prompt information can be the arrow pointing from the mark 304B to the mark 304C shown in FIG. 15A.

[0409] In this way, the user can quickly find the target position or the target direction that the finger needs to be adjusted through the second mark displayed by the electronic device 100 or the prompt information pointing from the first mark to the second mark.

[0410] S204. The electronic device 100 collects the PPG signal of the second area on the first finger, and the signal quality of the PPG signal of the second area is higher than the signal quality of the PPG signal of the first area.

[0411] In the process of collecting the PPG signal of the second area on the first finger by the electronic device 100, the electronic device 100 can display a second mark on the first distribution map, where the second mark can be used to indicate the second area.

[0412] Exemplarily, the second mark can be the mark 301C shown in FIG. 14E.

[0413] It can be understood that if the electronic device 100 has shown the second area to the user through the first prompt information when outputting the first prompt information, the second mark can be displayed before the electronic device 100 collects the PPG signal of the second area on the first finger.

[0414] In addition, similar to the electronic device 100 collecting the PPG signal of the first area, in the process of the electronic device 100 collecting the PPG signal of the second area on the first finger, the color of the second mark can change with the pressing force of the first finger.

[0415] In this way, the user can understand the change of the pressing force of the user's finger according to the color change of the second mark.

[0416] In addition, in the process of the electronic device 100 collecting the PPG signal of the second area on the first finger, the electronic device 100 can also display prompt information on whether the current pressing force of the first finger is appropriate. In this way, the electronic device 100 can continuously pay attention to the pressing force of the user's finger in the process of collecting the PPG signal, so that the user can adjust the pressing force of the finger in time in the process of collecting the PPG signal, and ensure that the pressing force of the finger is in the appropriate range as much as possible.

[0417] S205. The electronic device 100 displays the physiological parameter determined based on the PPG signal of the second area.

[0418] Exemplarily, the physiological parameter can include one or more of the following: blood pressure, blood sugar, heart rate, pulse rate.

[0419] Exemplarily, FIG. 14F takes the blood pressure measured by the electronic device 100 as an example, and shows the related parameters of the blood pressure measured by the electronic device 100, such as high pressure value, low pressure value, pulse frequency, etc.

[0420] In some embodiments, the electronic device 100 can guide the user to input the finger distribution map through a related user interface before measuring the physiological parameter.

[0421] Specifically, before the electronic device 100 displays the first interface, the electronic device 100 can also display a second interface, which can include a first schematic diagram, the first schematic diagram corresponding to a fourth area on the first finger covered by the first distribution map; the electronic device 100 can collect first data of the fourth area on the first finger, wherein the first data of the fourth area can be collected by the electronic device 100 multiple times, and each time of collecting the first data can be the first data of a part of the fourth area, and the first data of the fourth area can be used to generate the first distribution map; in the process of the electronic device 100 collecting the first data, the electronic device 100 can update the first schematic diagram, and the updated first schematic diagram can include prompt information of the area in the fourth area where the electronic device 100 has collected the first data.

[0422] The first schematic diagram can be a honeycomb grid diagram, a square grid diagram, a fingerprint diagram, a blood vessel distribution diagram, etc. corresponding to the fourth area on the first finger.

[0423] Exemplarily, referring to FIGS. 16A-16F, the second interface can refer to the user interface 80 shown in FIG. 16C, the first schematic diagram can refer to the schematic diagram 801 shown in FIG. 16C, and the updated first schematic diagram of the electronic device 100 during the process of collecting the first data can refer to the schematic diagram 801 shown in FIGS. 16D-16F in sequence.

[0424] That is, the electronic device 100 can guide the user to input the first distribution map through the related display interface before measuring the physiological parameter of the user, so that the electronic device 100 can guide the user to move the finger to the specified position when measuring the physiological parameter of the user by using the first distribution map.

[0425] As can be seen from steps S201-S205, the electronic device 100 can guide the user to adjust the area on the finger for collecting the PPG signal by displaying the related user interface during the process of measuring the physiological parameter of the user, so that the electronic device 100 can collect the PPG signal with better signal quality for calculating the physiological parameter, help the user to obtain more accurate physiological parameter information, and improve the accuracy of the user measuring the physiological parameter.

[0426] It can be understood that the content not described in detail in steps S201-S205 can refer to the related content of steps S101-S104, which will not be described here.

[0427] FIG. 18 is a structural schematic diagram of the collection device 200 provided by the embodiments of the present application.

[0428] As shown in FIG. 18, the collection device 200 can include a processor 201, a memory 202, a communication module 203, and the like. These components can be connected through a bus 204 or other means. FIG. 18 takes the connection through the bus as an example, and the bus 204 is used to realize the connection and communication between the processor 201, the memory 202, and the communication module 203. Among them:

[0429] The processor 201 can include one or more processing units. The processor 201 can be used to provide computing and control capabilities to support the operation of the entire collection device 200.

[0430] The memory 202 can be used to store various software programs and / or groups of instructions. Specifically, the memory 202 can include a high-speed random access memory, and can also include a non-volatile memory, such as one or more disk storage devices, flash devices, or other non-volatile solid-state storage devices.

[0431] The communication module 203 can be configured to communicate with other communication devices. Specifically, the communication module 203 can include a communication interface, which can be a 3G communication interface, a long term evolution (LTE) (4G) communication interface, a 5G communication interface, a WLAN communication interface, a WAN communication interface, a human skin communication interface, etc. Without being limited to a wireless communication interface, the acquisition device 200 can also be configured with a wired communication interface to support wired communication.

[0432] In the embodiments of the present application, the acquisition device 200 can be the electronic device 100 described above. The processor 201 can be configured to control the acquisition device 200 to acquire PPG signals of different regions on a finger, and control the acquisition device 200 to output prompt information to prompt a user to adjust a region on the finger for acquiring the PPG signals. The memory 202 can be configured to store the PPG signals acquired by the acquisition device 200 at different regions on the user's finger, and software or program codes required for all or part of the functions of the electronic device 100 in the above method embodiments.

[0433] It should be noted that the acquisition device 200 shown in FIG. 18 is only one implementation manner of the embodiments of the present application. In actual applications, the acquisition device 200 can include more or fewer components than those shown in the figure, or some components can be combined, or different components can be deployed, which is not limited herein.

[0434] It should be understood that each step in the above method embodiments can be completed by integrated logic circuits of hardware in the processor or instructions in the form of software. The method steps disclosed in combination with the embodiments of the present application can be directly embodied as hardware processor execution completion, or executed by a combination of hardware and software modules in the processor.

[0435] The present application also provides an electronic device, which can include a memory, a processor, and a computer program stored on the memory. The processor executes the computer program to implement the method performed by the electronic device in any one of the above embodiments.

[0436] The present application also provides a chip system, which includes a processing circuit and an interface circuit. The interface circuit is configured to receive computer instructions and transmit them to the processing circuit. The processing circuit is configured to run the computer instructions to implement the method performed by the electronic device in any one of the above embodiments.

[0437] The present application also provides a chip system, which includes at least one processor configured to implement the method performed by the electronic device in any one of the above embodiments. In a possible design, the chip system further includes a memory configured to store program instructions and data. The memory is located in the processor or outside the processor.

[0438] The chip system can be composed of a chip, or can include a chip and other discrete devices.

[0439] Optionally, the processor in the chip system can be one or more. The processor can be implemented by hardware or software. When implemented by hardware, the processor can be a logic circuit, an integrated circuit, etc. When implemented by software, the processor can be a general-purpose processor, which is implemented by reading software code stored in a memory.

[0440] Optionally, the memory in the chip system can also be one or more. The memory can be integrated with the processor or arranged separately from the processor, and the embodiments of the present application do not limit the memory. For example, the memory can be a non-transient processor, such as a read-only memory (ROM), which can be integrated on the same chip as the processor or arranged on different chips, and the embodiments of the present application do not limit the type of memory or the arrangement of the memory and the processor.

[0441] For example, the chip system can be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a central processor unit (CPU), a network processor (NP), a digital signal processor (DSP), a micro controller unit (MCU), a programmable logic device (PLD), or other integrated chips.

[0442] The present application also provides a computer-readable storage medium having a computer program stored thereon, and the computer program is executed by a processor to implement the method performed by the electronic device in any one of the above embodiments.

[0443] The present application also provides a computer program product comprising a computer program, and the computer program is executed by a processor to implement the method performed by the electronic device in any one of the above embodiments.

[0444] The embodiments of the present application can be combined in any way to achieve different technical effects.

[0445] In the above embodiments, all or part of the methods can be implemented by software, hardware, firmware, or any combination thereof. When implemented by software, all or part of the methods can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the present application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be transferred from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes one or more available media sets. The available media can be magnetic media (for example, floppy disk, hard disk, magnetic tape), optical media (for example, DVD), or semiconductor media (for example, solid state disk (SSD)) and the like.

[0446] Those of ordinary skill in the art can understand that all or part of the processes in the above embodiments can be implemented by a computer program to instruct the relevant hardware, which can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the above method embodiments. The aforementioned storage medium includes ROM or random access memory (RAM), magnetic disk or optical disk, and various media that can store program codes.

[0447] In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in the text only describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0448] The terms "first", "second" are only used for descriptive purposes, and cannot be understood as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" is two or more than two.

[0449] In conclusion, the above-mentioned is only the embodiment of the technical scheme of the present application, and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made according to the disclosure of the present application shall be included in the protection scope of the present application.

Claims

1. A method of acquisition, characterized in that, The method is applied to an electronic device, and the method comprises: acquiring a PPG signal of a first region on a first finger; outputting first prompt information, the first prompt information being used to prompt a user to adjust a region on the first finger for acquiring a PPG signal; acquiring a PPG signal of a second region on the first finger, the signal quality of the PPG signal of the second region being higher than that of the PPG signal of the first region.

2. The method of claim 1, wherein, The first prompt information is used to prompt the user to adjust the region on the first finger for acquiring a PPG signal to the second region, the second region being a region on a first distribution map in which the PPG signal quality is higher than a third value, the first distribution map representing a signal quality distribution of PPG signals of multiple regions on the first finger.

3. The method of claim 2, wherein, Before or after acquiring the PPG signal of the first region on the first finger, the method further comprises: acquiring first data of a fourth region on the first finger, the fourth region comprising the first region and the second region; generating the first distribution map based on the first data of the fourth region.

4. The method of claim 3, wherein, The first data of the fourth region is acquired multiple times by the electronic device, and in the process of acquiring the first data of the fourth region on the first finger, the method further comprises: outputting second prompt information, the second prompt information being used to indicate a region on the first finger in which the first data is not acquired.

5. The method according to claim 3 or 4, characterized in that, The first data comprises a PPG signal, and the first distribution map comprises a PPG signal distribution map, the PPG signal distribution map recording feature information of PPG signals of multiple regions on the first finger, the feature information being used to indicate the signal quality of the PPG signal, in the PPG signal distribution map, the PPG signal quality of the second region being higher than that of the first region.

6. The method of claim 5, wherein, The electronic device comprises a first PPG module, the PPG signal of the first region, the PPG signal of the second region, and the PPG signal of the fourth region are all acquired by the first PPG module.

7. The method of claim 5, wherein, The electronic device comprises a first PPG module and a second PPG module, the light coverage area of the second PPG module being greater than that of the first PPG module, The PPG signal of the first region and the PPG signal of the second region are acquired by the first PPG module, and the PPG signal of the fourth region is acquired by the second PPG module.

8. The method of claim 7, wherein, The light coverage area of the second PPG module is greater than or equal to the area corresponding to the PPG signal distribution map on the first finger.

9. The method according to claim 7 or 8, characterized in that, The electronic device is a watch, the first PPG module is located on the side of the watch, and the second PPG module is located at the bottom of the watch dial.

10. The method according to any one of claims 2-4, characterized in that, The first distribution map comprises a blood vessel distribution map, the blood vessel distribution map describing the blood vessel distribution of the first finger, in the blood vessel distribution map, the number of blood vessels of the second region being greater than that of the first region.

11. The method according to any one of claims 1 to 10, characterized in that, The first prompt information is outputted, specifically comprising: Output first prompt information in a case that the signal quality of the PPG signal of the first region is lower than a first value, or the first region is different from a third region or the first region is located outside the third region, the third region being a region on the first finger where a PPG signal with a signal quality higher than a second value can be collected by the electronic device.

12. The method of claim 11, wherein, The first value is a preset parameter of the electronic device, or the first value is determined according to a first distribution map, the first distribution map representing a signal quality distribution of PPG signals of multiple regions on the first finger.

13. The method according to any one of claims 1 to 12, characterized in that, A position of the first region on the first finger is determined by the electronic device according to a fingerprint of the first region and a fingerprint map of the first finger, the position of the first region on the first finger being a position of the fingerprint of the first region on the fingerprint map of the first finger.

14. The method of claim 13, wherein, The electronic device comprises a fingerprint sensor and a third PPG module, the fingerprint sensor and the third PPG module being integrated on one device, the PPG signal of the first region being collected by the third PPG module, and the fingerprint of the first region being collected by the fingerprint sensor.

15. The method according to any one of claims 1 to 14, characterized in that, In the process of collecting the PPG signal, the method further comprises: Inputting third prompt information, the third prompt information being used to indicate whether the pressing force of the first finger is appropriate.

16. The method according to any one of claims 1 to 15, characterized in that, The method further comprises: Outputting fourth prompt information in a case that the signal quality of the PPG signal collected at multiple regions on the first finger is lower than a fourth value, the fourth prompt information being used to indicate the user to replace the finger.

17. The method according to any one of claims 1 to 16, characterized in that, The method further comprises: Determining a physiological parameter of the user based on the PPG signal of the second region, the physiological parameter comprising one or more of the following: blood pressure, blood sugar, blood oxygen, heart rate, and pulse rate.

18. A method of harvesting, comprising: The method is applied to an electronic device, and the method comprises: Displaying a first interface, the first interface being used to prompt the user to collect a PPG signal on a first finger; Collecting a PPG signal of a first region on the first finger; Displaying first prompt information, the first prompt information being used to prompt the user to adjust a region on the first finger for collecting the PPG signal; Collecting a PPG signal of a second region on the first finger, the signal quality of the PPG signal of the second region being higher than that of the PPG signal of the first region; Displaying a physiological parameter determined based on the PPG signal of the second region.

19. The method of claim 18, wherein, In the process of collecting the PPG signal of the first region on the first finger, the method further comprises: Displaying a first distribution map and displaying a first mark on the first distribution map, the first distribution map being used to indicate the first finger, and the first mark being used to indicate the first region.

20. The method of claim 19, wherein, The first distribution map is a preset finger indication map of the electronic device, or the first distribution map is generated by the electronic device based on data of the first finger.

21. The method of claim 19 or 20, wherein, The first prompt information comprises a second mark displayed on the first distribution map, the second mark being used to indicate the second region.

22. The method of claim 21, wherein, The first prompt information further comprises prompt information that the first mark points to the second mark.

23. The method according to any one of claims 19-22, characterized by, Before displaying the first interface, the method further includes: displaying a second interface, the second interface including a first schematic diagram corresponding to a fourth region on the first finger covered by the first distribution diagram; collecting first data of the fourth region on the first finger; wherein the first data of the fourth region is obtained by the electronic device multiple times, the first data collected each time in the multiple times being first data of a partial region in the fourth region, and the first data of the fourth region being used to generate the first distribution diagram; in the process of collecting the first data by the electronic device, updating the first schematic diagram, the updated first schematic diagram including prompt information of a region in the fourth region for which the electronic device has collected first data.

24. The method of any one of claims 19-23, wherein, The first distribution diagram includes a PPG signal distribution diagram recording feature information of PPG signals of multiple regions on the first finger, the feature information being used to indicate signal quality of PPG signals, and in the PPG signal distribution diagram, PPG signal quality of the second region is higher than PPG signal quality of the first region.

25. The method of any one of claims 19-23, wherein, The first distribution diagram includes a blood vessel distribution diagram describing blood vessel distribution of the first finger, and in the blood vessel distribution diagram, the number of blood vessels of the second region is greater than the number of blood vessels of the first region.

26. The method of any one of claims 19-25, wherein, In the process of collecting the PPG signal of the first region on the first finger, the color of the first mark changes along with the pressing pressure of the first finger.

27. The method of any one of claims 18-26, wherein, In the process of collecting the PPG signal of the first region on the first finger, the method further includes: displaying third prompt information, the third prompt information being used to indicate whether the pressing pressure of the first finger is appropriate.

28. The method of any one of claims 18-27, wherein, The physiological parameter includes one or more of the following: blood pressure, blood sugar, blood oxygen, heart rate, and pulse rate.

29. An electronic device, comprising: including: a memory, a processor, and a computer program stored on the memory, the processor executing the computer program to implement the method of any one of claims 1-17, 18-28.

30. A computer-readable storage medium, characterized in that, a computer program stored thereon, the computer program being executed by a processor to implement the method of any one of claims 1-17, 18-28.

31. A computer program product, characterised in that, The computer program product includes a computer program, the computer program being executed by a processor to implement the method of any one of claims 1-17, 18-28.

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