CN115191978A

CN115191978A - Living body detection method, wearable device and computer-readable storage medium

Info

Publication number: CN115191978A
Application number: CN202110384430.8A
Authority: CN
Inventors: 董思远; 梁杰
Original assignee: Guangdong Genius Technology Co Ltd
Current assignee: Guangdong Genius Technology Co Ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2022-10-18

Abstract

The embodiment of the invention discloses a living body detection method, wearable equipment and a computer readable storage medium, which are used for detecting pulse waves by the wearable equipment based on an infrared detection device so as to determine that an object to be detected is a living body, and reduce the use duration of green light emitted by the wearable equipment so as to reduce the damage degree of the green light to eyes of a user. The method provided by the embodiment of the invention is applied to wearable equipment, and can comprise the following steps: detecting, by infrared detection means, a signal value received by the optical sensor at a first frequency; when the signal value is larger than a preset signal threshold value, determining that an object to be detected exists; and if the pulse wave of the object to be detected is detected to exist at a second frequency through the infrared detection device, determining the object to be detected as a living body, wherein the second frequency is greater than the first frequency.

Description

Living body detection method, wearable device and computer-readable storage medium

Technical Field

The present invention relates to the field of electronic device applications, and in particular, to a method for detecting a living body, a wearable device, and a computer-readable storage medium.

Background

As schools and parents pay more and more attention to the health condition of children, functions based on photoplethysmography (PPG) (PPG functions for short) have been added to many wearable devices. The PPG function may detect the pulse waves of the child using these wearable devices to obtain the child's heart rate.

The PPG function is under operating condition, and wearable equipment can continuously open the green glow and judge that the object that awaits measuring before wearable equipment is the live body or not. Since a child's curiosity is staring at green light for a long time, the green light may cause a certain degree of injury to the child's eyes.

Disclosure of Invention

The embodiment of the invention provides a living body detection method, wearable equipment and a computer readable storage medium, which are used for detecting pulse waves by the wearable equipment based on an infrared detection device so as to determine that an object to be detected is a living body, and reducing the service life of green light emitted by the wearable equipment so as to reduce the injury degree of the green light to eyes of a user.

In a first aspect, an embodiment of the present invention provides a method for detecting a living body, where the method is applied to a wearable device, and the method may include:

detecting, by infrared detection means, a signal value received by the optical sensor at a first frequency;

when the signal value is larger than a preset signal threshold value, determining that an object to be detected exists;

if the pulse wave of the object to be detected exists through the infrared detection device and the second frequency is detected, the object to be detected is determined to be a living body, and the second frequency is larger than the first frequency.

Optionally, the detecting, by the infrared detecting device, that the object to be detected has the pulse wave at the second frequency includes: acquiring a first distance between the infrared detection device and the object to be detected; when the first distance is smaller than a preset distance threshold value, the existence of pulse waves of the object to be detected is detected at a second frequency through the infrared detection device.

Optionally, the method further includes: the method includes starting a first light emitter in the wearable device and controlling the light emitter to emit green light, and detecting a heart rate of the living body at a third frequency.

Optionally, the activating a first light emitter in the wearable device and controlling the light emitter to emit green light to detect the heart rate of the living subject at a third frequency comprises: after waiting for a preset time, starting a first light emitter in the wearable device, and controlling the light emitter to emit green light so as to detect the heart rate of the living body; or directly starting a first light emitter in the wearable device and controlling the light emitter to emit green light so as to periodically detect the heart rate of the living body according to the reflected signal of the green light.

Optionally, the activating a first light emitter in the wearable device and controlling the light emitter to emit green light to detect the heart rate of the living subject at a third frequency comprises: starting green light in the wearable equipment, and acquiring the pulse frequency of the pulse wave of the living body at a third frequency; and calculating the heart rate of the living body according to the beating times.

Optionally, the method further includes: when the heart rate is within a preset heart rate range, recording and storing the heart rate; when the heart rate is out of the preset heart rate range, outputting first prompt information, wherein the first prompt information is related suggestions provided for the user according to the heart rate.

Optionally, the method further includes: when the signal value is smaller than or equal to the preset signal threshold value, closing the wearable equipment; or, if the pulse wave of the object to be detected is not detected at the second frequency through the infrared detection device, determining the object to be detected as a non-living body.

A second aspect of an embodiment of the present invention provides a wearable device, which may include:

the detection module is used for detecting a signal value received by the optical sensor at a first frequency through the infrared detection device;

the determining module is used for determining that the object to be detected exists when the signal value is larger than a preset signal threshold value; if the pulse wave of the object to be detected exists through the infrared detection device and the second frequency is detected, the object to be detected is determined to be a living body, and the second frequency is larger than the first frequency.

Optionally, the acquiring module is configured to acquire a first distance between the infrared detection device and the object to be detected;

the detection module is specifically used for detecting that the object to be detected has pulse waves at a second frequency through the infrared detection device when the first distance is smaller than a preset distance threshold.

Optionally, the detection module is further configured to start a first light emitter in the wearable device, and control the light emitter to emit green light, so as to detect the heart rate of the living body at a third frequency.

Optionally, the detection module is specifically configured to start a first light emitter in the wearable device after waiting for a preset duration, and control the light emitter to emit green light, so as to detect a heart rate of the living body; or, directly starting a first light emitter in the wearable device and controlling the light emitter to emit green light so as to periodically detect the heart rate of the living body according to a reflected signal of the green light.

Optionally, the obtaining module is specifically configured to start a first light emitter in the wearable device, control the light emitter to emit green light, and obtain the number of beats of the pulse wave of the living body at a third frequency;

the detection module is specifically used for calculating the heart rate of the living body according to the beating times.

Optionally, the processing module is configured to record and store the heart rate when the heart rate is within a preset heart rate range; when this rhythm of the heart is located this and predetermines the rhythm of the heart scope outside, output first prompt information, this first prompt information is for according to this rhythm of the heart, the relevant suggestion that provides for the user.

Optionally, the processing module is specifically configured to close the wearable device when the signal value is less than or equal to the preset signal threshold; or, if the pulse wave of the object to be detected is not detected at the second frequency through the infrared detection device, determining the object to be detected as a non-living body.

A third aspect of an embodiment of the present invention provides a wearable device, which may include:

a memory storing executable program code;

and a processor coupled to the memory;

the processor calls the executable program code stored in the memory, and when the executable program code is executed by the processor, the processor is enabled to implement the method according to the first aspect of the embodiment of the invention.

A fourth aspect of embodiments of the present invention provides a computer-readable storage medium having stored thereon executable program code, which when executed by a processor, implements a method according to the first aspect of embodiments of the present invention.

A fifth aspect of the embodiments of the present invention discloses a computer program product, which, when running on a computer, causes the computer to execute any one of the methods disclosed in the first aspect of the embodiments of the present invention.

A sixth aspect of the embodiments of the present invention discloses an application publishing platform, where the application publishing platform is configured to publish a computer program product, where when the computer program product runs on a computer, the computer is enabled to execute any one of the methods disclosed in the first aspect of the embodiments of the present invention.

According to the technical scheme, the embodiment of the invention has the following advantages:

in the embodiment of the invention, the signal value received by the optical sensor is detected at a first frequency by an infrared detection device; when the signal value is larger than a preset signal threshold value, determining that an object to be detected exists; and if the object to be detected has pulse waves through the infrared detection device at a second frequency, determining the object to be detected as a living body, wherein the second frequency is greater than the first frequency. The wearable device judges whether an object to be detected exists in front of the wearable device according to the signal value sent by the optical sensor; under the condition that the object to be detected is determined to exist, judging whether the object to be detected has pulse waves or not; and under the condition that the pulse wave exists on the object to be measured, determining the object to be measured as a living body. The method enables the wearable device to detect the pulse wave based on the infrared detection device so as to determine that the object to be detected is a living body, and reduces the use duration of green light emitted by the wearable device so as to reduce the damage degree of the green light to the eyes of the user.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the embodiments and the drawings used in the description of the prior art, and obviously, the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained according to the drawings.

FIG. 1 is a schematic view of an embodiment of a living body detecting method according to an embodiment of the present invention;

FIG. 2 is a schematic view of another embodiment of a living body detecting method according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of another embodiment of a method for detecting a living body according to an embodiment of the present invention;

FIG. 4a is a schematic diagram of an embodiment of a wearable device in an embodiment of the invention;

fig. 4b is a schematic diagram of another embodiment of a wearable device in an embodiment of the invention;

FIG. 4c is a diagram of another embodiment of a wearable device in accordance with an embodiment of the invention;

fig. 5 is a schematic diagram of another embodiment of the wearable device in the embodiment of the invention.

Detailed Description

The embodiment of the invention provides a living body detection method, wearable equipment and a computer readable storage medium, which are used for detecting pulse waves by the wearable equipment based on an infrared detection device so as to determine that an object to be detected is a living body, and reducing the use duration of green light emitted by the wearable equipment so as to reduce the damage degree of the green light to eyes of a user.

In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The embodiments based on the present invention should fall into the protection scope of the present invention.

It is to be understood that the wearable device according to embodiments of the present invention may be worn directly on the user or may be a portable electronic device integrated into the clothing or accessory of the user. Wearable equipment is not only a hardware device, can realize powerful intelligent function through software support and data interaction, cloud end interaction more, for example: the system has the functions of calculation, positioning and alarming, and can be connected with a mobile phone and various terminals. Wearable devices may include, but are not limited to, wrist-supported watch types (e.g., wrist watches, wrist-supported products), foot-supported shoes types (e.g., shoes, socks, or other leg-worn products), head-supported Glass types (e.g., glasses, helmets, headbands, etc.), and various types of non-mainstream products such as smart clothing, bags, crutches, accessories, and the like.

In the following, the technical solution of the present invention is further described by way of an embodiment, as shown in fig. 1, which is a schematic view of an embodiment of a living body detection method in an embodiment of the present invention, the method is applied to a wearable device, and the method may include:

101. the signal value received by the optical sensor is detected at a first frequency by an infrared detection means.

It should be noted that the optical sensor is used for receiving an infrared radiation signal value, where the infrared radiation signal value is an analog signal value, and the infrared radiation signal value may be an infrared light signal value reflected by an object to be measured; the optical sensor converts the analog signal value to obtain a digital signal value (signal value for short), and sends the digital signal value to the infrared detection device. The infrared detection device may be an infrared sensor, and the infrared detection device may receive the digital signal value transmitted by the optical sensor. Alternatively, the digital signal value may be a current value, and the unit of the current value is milliampere (mA).

Wherein, this infrared detection device and this optical sensor all are located wearable equipment, and concrete arrangement does not do specific details.

It is understood that the frequency is in hertz (abbreviated to Hz); the first frequency is within a first predetermined frequency range, which is acquired by the wearable device in a large amount of first experimental data. The first preset frequency range may be composed of a first preset frequency threshold and a second preset frequency threshold, and the first preset frequency threshold is smaller than the second preset frequency threshold.

It should be noted that, the value of the first frequency needs to satisfy the low power consumption function of the wearable device, so that when the wearable device is in a low power state, the wearable device starts the low power consumption function, and the infrared detection device can still detect the signal value received by the optical sensor at the first frequency, thereby determining whether the object to be detected exists in front of the wearable device.

For example, assuming that the first preset frequency range is (0hz, 10hz), and the first frequency is 5Hz, which is within (0hz, 10hz), at this time, the wearable device detects the signal value reflected by the object to be detected at the frequency of 5Hz through the infrared detection device.

102. And when the signal value is larger than a preset signal threshold value, determining that the object to be detected exists.

It should be noted that, after the wearable device receives the signal value sent by the optical sensor through the infrared detection device, the wearable device may compare the signal value with a preset signal threshold value to determine whether a blocking object exists in front of the wearable device, at this time, the blocking object is an object to be detected, and the object to be detected may be a living body or a non-living body, which is not specifically limited herein.

Wherein if the signal value is greater than a preset signal threshold, the wearable device may determine that an obstructing object is present in front; if the signal value is less than or equal to the preset signal threshold, the wearable device may determine that there is no obstructing object in front.

It can be understood that the preset signal threshold may be selected by collecting a large amount of second experimental data by the wearable device, that is, the preset signal threshold is set before the wearable device leaves a factory, and details are not described herein.

For example, assuming that the preset signal threshold is 5mA, the wearable device passes through the infrared detection device, the signal value sent by the receiving optical sensor is 6mA, where the 6mA is greater than 5mA, and at this time, the wearable device determines that the object to be measured exists in front of the wearable device.

Optionally, after step 102, the method may further include: and when the signal value is less than or equal to the preset signal threshold value, the wearable device is closed.

Optionally, the wearable device turns off the wearable device when the signal value is less than or equal to the preset signal threshold, which may include but is not limited to the following implementation manners:

implementation mode 1: when the signal value is smaller than or equal to the preset signal threshold value, the wearable device turns off photoplethysmography (PPG) on the wearable device through the acceleration accelerometer.

The PPG is an infrared non-destructive detection technique that detects changes in blood volume in living tissue by photoelectric conversion techniques. When a light beam of a certain wavelength is applied to the surface of the finger tip skin, each heartbeat, the contraction and expansion of the blood vessels affects the transmission of light (e.g., light passing through the fingertip in transmission PPG) or the reflection of light (e.g., light from the vicinity of the surface of the wrist in reflection PPG). There is some attenuation of the light as it passes through the skin tissue and is then reflected to the light sensor. The absorption of light by the tissues like muscles, bones, veins and other connections is substantially constant (provided that there is no substantial movement of the measurement site), but the arteries will be different and naturally also vary due to the pulsation of the blood in the arteries. When the optical sensor converts an optical signal into an electrical signal, the absorption of the light by the artery is changed, but the absorption of the light by other tissues is basically unchanged, and the obtained signal can be divided into a Direct Current (DC) signal and an Alternating Current (AC) signal. The wearable device can reflect the characteristics of the blood flow according to the AC signal. That is, in the present invention, PPG is used to detect the heart rate of a living subject. The wearable device closes the PPG on the wearable device, that is, the wearable device closes its infrared detection device, to reduce the power consumption of the wearable device.

Implementation mode 2: when the signal value is smaller than or equal to the preset signal threshold value, the wearable device outputs second prompt information and receives a first instruction input by a user, wherein the second prompt information is used for prompting that no object to be detected exists in front of the user; the wearable device is controlled to enter a standby state or a shutdown state according to the first instruction.

It can be understood that the first instruction is used to control the wearable device to enter a standby state or a power-off state, the first instruction may be a voice instruction, and may be a key instruction, and the key instruction may be an entity key instruction or a virtual key instruction, which is not limited specifically herein.

Exemplarily, assuming that the preset signal threshold is 5mA, the wearable device receives a signal value sent by the optical sensor through the infrared detection device as 2mA, where the 2mA is smaller than 5mA, and at this time, the wearable device outputs second prompt information and receives a first instruction input by the user; the wearable device controls the wearable device to enter a standby state according to the first instruction.

Optionally, the wearable device outputs the second prompt information, which may include but is not limited to the following implementation manners:

implementation mode 1: the wearable device outputs second prompt information in the form of voice.

It should be noted that the voice may be set before the wearable device leaves the factory, or may be set by the user according to the preference of the user, which is not specifically limited herein.

Implementation mode 2: the wearable device outputs second prompt information in the form of flashing lights.

It should be noted that the flashing light may flash with a monochromatic light, or alternatively flash with a colored light, and is not limited herein.

Implementation mode 3: the wearable device outputs second prompt information in a vibration mode.

The vibration may be intermittent vibration or continuous vibration, and is not particularly limited herein.

It is understood that the form of voice, flashing light, or vibration is for the user to intuitively know the second prompt. In particular, the implementation manners 1 to 3 may be combined with each other to form a new implementation manner, and the new implementation manner is also within the protection scope of the present invention, and will not be described in detail herein.

103. And if the object to be detected has pulse waves detected by the infrared detection device at a second frequency, determining the object to be detected as a living body.

Wherein the second frequency is greater than the first frequency. The living body may include, but is not limited to, a human.

In particular, the living body may be a child.

It is understood that the invention may be from the perspective of a child, and the wearable device may detect the heart rate of the child in motion.

It will be appreciated that the second frequency is within a second predetermined frequency range, which is acquired by the wearable device in a third plurality of experimental data. The second preset frequency range may be composed of a third preset frequency threshold and a fourth preset frequency threshold, and the third preset frequency threshold is smaller than the fourth preset frequency threshold. Wherein the third predetermined frequency threshold is greater than the second predetermined frequency threshold.

It should be noted that the condition that the value of the second frequency needs to be satisfied is that the wearable device can detect a pulse wave on the object to be measured. Therefore, the accuracy of whether the wearable device detects the pulse wave on the object to be detected can be improved.

For example, assuming that the second preset frequency range is (20hz, 30hz), and the second frequency range is 25Hz and is within (20hz, 30hz), at this time, the wearable device detects whether the object to be detected has pulse waves at the frequency of 25Hz through the infrared detection device.

Optionally, if the wearable device detects that the object to be detected has a pulse wave at the second frequency through the infrared detection apparatus, the wearable device determines that the object to be detected is a living body, which may include: if the wearable device obtains a first distance between the infrared detection device and the object to be detected; when the first distance is smaller than a preset distance threshold value, the infrared detection device detects that the object to be detected has pulse waves at a second frequency, and then the wearable device determines the object to be detected as a living body.

It can be understood that, after the wearable device determines that the object to be detected exists in front of the wearable device, the distance between the object to be detected and the wearable device needs to be determined; when the distance meets the distance condition, the wearable device can detect whether pulse waves exist on the object to be detected; if there is a pulse wave, the wearable device may determine the object to be measured as a living body; if no pulse wave is present, the wearable device may determine the object under test as a non-living body.

It should be noted that, the first distance between the infrared detection device and the object to be detected may be detected by the wearable device through a distance detection device, and the distance detection device may be a distance sensor; the preset distance threshold may be obtained by the wearable device in a large amount of second experimental data, that is, the preset distance threshold is set before the wearable device leaves the factory, and details are not described herein.

For example, assume that the preset distance threshold is 10 meters (m). Wearable equipment detects through distance sensor that the first distance between infrared detection device and the object that awaits measuring is 8m, and this 8m is less than 10m, and at this moment, this wearable equipment passes through this infrared detection device, detects the signal value that this object that awaits measuring reflects with 6 Hz's frequency.

Optionally, after step 103, the method may further include: if the wearable device passes through the infrared detection device and does not detect that the object to be detected has the pulse wave at the second frequency, the wearable device determines the object to be detected as a non-living body.

Optionally, after the wearable device determines that the object under test is not a living body, the wearable device may turn off the wearable device.

It should be noted that, the process that the wearable device can turn off the wearable device has been described in detail in step 102, and details are not described here.

It is understood that the wearable device does not detect a pulse wave on the object to be measured, and the object to be measured is determined to be a non-living body. Because the wearable device does not perform further processing on the non-living body, the wearable device can be turned off to avoid power consumption and prolong the service life of the battery.

Optionally, the wearable device turning off the wearable device may include: the wearable device outputs third prompt information, wherein the third prompt information is used for prompting the user that the object to be detected is determined to be a non-living body; the wearable device receives a second instruction input by a user, and controls the wearable device to enter a standby state or a shutdown state according to the second instruction, wherein the second instruction is used for indicating that the wearable device can control the wearable device to enter the standby state or the shutdown state.

It should be noted that in the method after step 103, the interpretation of the second instruction is similar to the interpretation of the first instruction in step 102; the implementation manner of outputting the third prompt information by the wearable device is similar to the implementation manner of outputting the second prompt information by the wearable device in step 102, and details are not described here.

In the embodiment of the invention, the signal value received by the optical sensor is detected at a first frequency by an infrared detection device; when the signal value is larger than a preset signal threshold value, determining that an object to be detected exists; and if the object to be detected has pulse waves through the infrared detection device at a second frequency, determining the object to be detected as a living body, wherein the second frequency is greater than the first frequency. The wearable device judges whether the object to be detected exists in front of the wearable device according to the signal value sent by the optical sensor; under the condition that the object to be detected is determined to exist, judging whether the object to be detected has pulse waves or not; and under the condition that the pulse wave exists on the object to be measured, determining the object to be measured as a living body. The method enables the wearable device to detect the pulse wave based on the infrared detection device so as to determine that the object to be detected is a living body, and reduces the use duration of green light emitted by the wearable device so as to reduce the damage degree of the green light to the eyes of the user.

As shown in fig. 2, a schematic diagram of another embodiment of a method for detecting a living body in an embodiment of the present invention is applied to a wearable device, and the method may include:

201. the signal value received by the optical sensor is detected at a first frequency by an infrared detection means.

202. And when the signal value is larger than a preset signal threshold value, determining that the object to be detected exists.

203. And if the pulse wave of the object to be detected is detected to exist at a second frequency through the infrared detection device, determining the object to be detected as a living body.

Wherein the second frequency is greater than the first frequency.

It should be noted that steps 201 to 203 are similar to steps 101 to 103 shown in fig. 1 in this embodiment, and are not described again here.

204. Activating a first light emitter in the wearable device and controlling the light emitter to emit green light to detect a heart rate of the living subject at a third frequency.

Wherein, be equipped with first light emitter in the wearable equipment.

It is to be understood that the third frequency is within a third predetermined frequency range, which is acquired by the wearable device in a large amount of fourth experimental data. The third preset frequency range may be composed of a fifth preset frequency threshold and a sixth preset frequency threshold, and the fifth preset frequency threshold is smaller than the sixth preset frequency threshold.

It should be noted that the value of the third frequency needs to satisfy a condition that the wearable device can detect a heart rate in a living body. In this way, the accuracy with which the wearable device can detect the heart rate on the living body can be improved.

It will be appreciated that the reason for the wearable device to detect heart rate using green light is that the wearable device may change the signal more widely with green light than with red light, and may have better resistance to ambient light with green light than with red light. Thus, wearable equipment adopts the signal-to-noise ratio that green light detected the rhythm of the heart than adopting the signal-to-noise ratio that red light detected the rhythm of the heart, and the signal-to-noise ratio is higher, and the external interference to wearable equipment detection rhythm of the heart is less, and the rhythm of the heart that this wearable equipment detected is more accurate.

Illustratively, assuming that the third preset frequency range is (20hz, 30hz), and the third frequency range is 25Hz, which is within (20hz, 10hz), at this time, the wearable device starts the first light emitter in the wearable device, and controls the light emitter to emit green light, and detects the heart rate of the living body at the frequency of 25 Hz.

It can be understood that, in the prior art, the electronic device generally determines whether the object to be measured is a living body based on the heart rate. In this way, the electronic device turns on a green light to detect the heart rate without user's precaution, which may cause some damage to the user's eyes. In the invention, the wearable device firstly judges whether the object to be detected is a living body according to the pulse wave, and turns on the green light to detect the heart rate under the condition of determining the living body, so that the harm of the green light to the eyes of the user can be effectively reduced.

Optionally, the wearable device starts the first light emitter in the wearable device and controls the light emitter to emit green light, and detects the heart rate of the living body at a third frequency, which may include but is not limited to the following implementation manners:

implementation mode 1: after the wearable device waits for the preset time, a first light emitter in the wearable device is started, and the light emitter is controlled to emit green light so as to detect the heart rate of the living body.

It should be noted that, when the wearable device determines the object to be measured as a living body, the wearable device may detect the heart rate of the living body after a period of time.

Implementation mode 2: the wearable device directly starts a first light emitter in the wearable device and controls the light emitter to emit green light so as to periodically detect the heart rate of the living body according to the reflected signal of the green light.

It should be noted that, when the wearable device determines the object to be measured as a living body, the wearable device may periodically detect the heart rate of the living body.

Illustratively, the wearable device activates a first light emitter in the wearable device and controls the light emitter to emit green light, detecting the heart rate of the living subject at a frequency of 25Hz every wednesday at 17 pm.

Implementation mode 3: after the wearable device waits for a preset time, a first light emitter in the wearable device is started, and the light emitter is controlled to emit green light, so that the heart rate of the living body is detected periodically according to the reflected signal of the green light.

Implementation mode 4: the wearable device starts a first light emitter in the wearable device, controls the light emitter to emit green light, and obtains the beating times of the pulse wave of the living body at a third frequency; the wearable device calculates the heart rate of the living body according to the beating times.

It should be noted that the heart rate refers to the number of beats per minute of the heart. The normal human heart rate ranges from 60 beats/minute to 100 beats/minute. The pulse is the artery pulse that the human body surface can touch, and its essence is that the heart accomplishes effective shrink, causes the change of peripheral vascular wall normal pressure, and the deformation takes place for the artery wall that has elasticity, makes the people can detect artery pulse number of times more directly perceivedly. The normal pulse is 60 to 100 pulses per minute. It follows that the heart rate and the number of pulses are normally equal.

Therefore, the wearable device can determine that the living body is in a normal state when the wearable device obtains the number of beats of the pulse wave, namely the heart rate of the living body.

In the embodiment of the invention, the signal value received by the optical sensor is detected at a first frequency by an infrared detection device; when the signal value is larger than a preset signal threshold value, determining that an object to be detected exists; if the pulse wave of the object to be detected is detected to exist at a second frequency through the infrared detection device, determining the object to be detected as a living body, wherein the second frequency is greater than the first frequency; activating a first light emitter in the wearable device and controlling the light emitter to emit green light to detect a heart rate of the living subject at a third frequency. The wearable device judges whether the object to be detected exists in front of the wearable device according to the signal value sent by the optical sensor; under the condition that the object to be detected is determined to exist, judging whether the object to be detected has pulse waves or not; determining the object to be detected as a living body under the condition that the pulse wave exists on the object to be detected; the wearable device performs heart rate detection on the living subject. The method not only can enable the wearable device to detect the pulse wave based on the infrared detection device so as to determine that the object to be detected is a living body, reduce the using time of green light emitted by the wearable device so as to reduce the injury degree of the green light to eyes of a user, but also can start the green light to detect the heart rate of the living body after confirming the living body.

As shown in fig. 3, a schematic diagram of another embodiment of a method for detecting a living body in an embodiment of the present invention, where the method is applied to a wearable device, the method may include:

301. the signal value received by the optical sensor is detected at a first frequency by infrared detection means.

302. And when the signal value is larger than a preset signal threshold value, determining that the object to be detected exists.

303. And if the object to be detected has pulse waves detected by the infrared detection device at a second frequency, determining the object to be detected as a living body.

Wherein the second frequency is greater than the first frequency.

304. Activating a first light emitter in the wearable device and controlling the light emitter to emit green light to detect a heart rate of the living subject at a third frequency.

It should be noted that steps 301 to 304 are similar to steps 201 to 204 shown in fig. 2 in this embodiment, and are not described again here.

305. And when the heart rate is within a preset heart rate range, recording and storing the heart rate.

The preset heart rate range is an interval formed by a first preset heart rate threshold value and a second preset heart rate threshold value, the first preset heart rate threshold value is smaller than the second preset heart rate threshold value, and the preset heart rate range is generally set to be (60 times/minute and 100 times/minute).

306. And when the heart rate is out of the preset heart rate range, outputting first prompt information.

And the first prompt message is related suggestion provided by the wearable device for the user according to the heart rate.

Optionally, when the heart rate is outside the preset heart rate range, the wearable device outputs first prompt information, which may include: when the heart rate is less than or equal to a first preset heart rate threshold value, outputting first sub-prompt information; and when the heart rate is greater than or equal to a second preset heart rate threshold value, outputting second sub-prompt information.

It can be understood that when the heart rate is less than or equal to the first preset heart rate threshold, the wearable device may determine that the living body is in the tachycardia state, and the output first sub-prompt information may prompt the user to detect the thyroid function of the user; when this rhythm of heart is more than or equal to the second and presets the rhythm of heart threshold value, this wearable equipment can judge that this live body is in bradycardia state, and the sub-tip information of second of output can be the reason that the suggestion user detected this live body rhythm of heart and is low to take corresponding measure.

Among them, there are three reasons for the heart rate being too low: the first is vagus nerve hyperactivity, where upon excitation, the distal ends of the vagus nerve release a substance called "acetylcholine", causing a hypopnea; the second is sick sinus syndrome, which is a sick heart showing the heart, and can be the heart rate hypo caused by coronary heart disease, cardiomyopathy and other diseases; the third is a severe atrioventricular block that causes a slow heartbeat, which in turn causes a low heart rate.

In the embodiment of the invention, the signal value received by the optical sensor is detected at a first frequency by an infrared detection device; when the signal value is larger than a preset signal threshold value, determining that an object to be detected exists; if the pulse wave of the object to be detected is detected to exist at a second frequency through the infrared detection device, determining the object to be detected as a living body; starting a first light emitter in the wearable device and controlling the light emitter to emit green light, and detecting the heart rate of the living body at a third frequency; when the heart rate is within a preset heart rate range, recording and storing the heart rate; and when the heart rate is out of the preset heart rate range, outputting first prompt information. The wearable device judges whether an object to be detected exists in front of the wearable device according to the signal value sent by the optical sensor; under the condition that the object to be detected is determined to exist, judging whether the object to be detected has pulse waves or not; under the condition that the pulse wave exists on the object to be detected, determining the object to be detected as a living body; this wearable equipment carries out heart rate detection to this live body to according to the heart rate that detects, make corresponding measure. The method not only can enable the wearable device to detect the pulse wave based on the infrared detection device so as to determine that the object to be detected is a living body, reduce the using time of green light emitted by the wearable device so as to reduce the damage degree of the green light to eyes of a user, but also can detect the heart rate of the living body so that the user can timely master the heart rate of the living body.

As shown in fig. 4a, which is a schematic diagram of an embodiment of a wearable device in an embodiment of the present invention, the wearable device may include: a detection module 401 and a determination module 402;

a detection module 401, configured to detect, by an infrared detection device, a signal value received by a light sensor at a first frequency;

a determining module 402, configured to determine that an object to be detected exists when the signal value is greater than a preset signal threshold; if the infrared detection device detects that the object to be detected has pulse waves at a second frequency, the object to be detected is determined as a living body, and the second frequency is greater than the first frequency.

Optionally, in some embodiments of the present invention, as shown in fig. 4b, which is a schematic view of another embodiment of a wearable device in an embodiment of the present invention, the wearable device may further include: an acquisition module 403;

an obtaining module 403, configured to obtain a first distance between the infrared detection apparatus and the object to be detected;

the detecting module 401 is specifically configured to detect, through the infrared detecting device, that the object to be detected has a pulse wave at a second frequency when the first distance is smaller than a preset distance threshold.

Alternatively, in some embodiments of the present invention,

the detection module 401 is further configured to start a first light emitter in the wearable device, and control the light emitter to emit green light, so as to detect the heart rate of the living body at a third frequency.

Alternatively, in some embodiments of the present invention,

the detection module 401 is specifically configured to start a first light emitter in the wearable device after waiting for a preset duration, and control the light emitter to emit green light, so as to detect the heart rate of the living body; or, directly starting a first light emitter in the wearable device and controlling the light emitter to emit green light so as to periodically detect the heart rate of the living body according to a reflected signal of the green light.

Alternatively, in some embodiments of the invention,

an obtaining module 403, specifically configured to start a first light emitter in the wearable device, control the light emitter to emit green light, and obtain the number of beats of the pulse wave of the living body at a third frequency;

the detecting module 401 is specifically configured to calculate a heart rate of the living body according to the number of beats.

Optionally, in some embodiments of the present invention, as shown in fig. 4c, which is a schematic view of another embodiment of a wearable device in an embodiment of the present invention, the wearable device may further include: a processing module 404;

the processing module 404 is configured to record and store the heart rate when the heart rate is within a preset heart rate range; when the heart rate is out of the preset heart rate range, outputting first prompt information, wherein the first prompt information is related suggestions provided for the user according to the heart rate.

Alternatively, in some embodiments of the invention,

a processing module 404, specifically configured to close the wearable device when the signal value is less than or equal to the preset signal threshold; or the like, or, alternatively,

and if the pulse wave of the object to be detected is not detected to exist at the second frequency through the infrared detection device, determining the object to be detected as a non-living body.

Fig. 5 is a schematic diagram of another embodiment of a wearable device in an embodiment of the present invention, and fig. 5 is a block diagram of a partial structure related to the wearable device provided in the embodiment of the present invention. Referring to fig. 5, the wearable device includes: radio Frequency (RF) circuit 510, memory 520, input unit 530, display unit 540, sensor 550, audio circuit 560, wireless fidelity (WiFi) module 570, processor 580, and power supply 590. Those skilled in the art will appreciate that the wearable device structure shown in fig. 5 does not constitute a limitation of the wearable device, and may include more or fewer components than shown, or combine certain components, or a different arrangement of components.

The following describes the various components of the wearable device in detail with reference to fig. 5:

RF circuit 510 may be used for receiving and transmitting signals during information transmission and reception or during a call, and in particular, for processing downlink information of a base station after receiving the downlink information to processor 580; in addition, data for designing uplink is transmitted to the base station. In general, RF circuit 510 includes, but is not limited to, an antenna, at least one Amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, RF circuit 510 may also communicate with networks and other devices via wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communication (GSM), general Packet Radio Service (GPRS), code Division Multiple Access (CDMA), wideband Code Division Multiple Access (WCDMA), long Term Evolution (LTE), email, short Messaging Service (SMS), and the like.

The memory 520 may be used to store software programs and modules, and the processor 580 executes various functional applications and data processing of the wearable device by operating the software programs and modules stored in the memory 520. The memory 520 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data created from use of the wearable device (such as audio data, phone book, etc.), and the like. Further, the memory 520 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 530 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the wearable device. Specifically, the input unit 530 may include a touch panel 531 and other input devices 532. The touch panel 531, also called a touch screen, can collect touch operations of a user on or near the touch panel 531 (for example, operations of the user on or near the touch panel 531 by using any suitable object or accessory such as a finger or a stylus pen), and drive the corresponding connection device according to a preset program. Alternatively, the touch panel 531 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, and sends the touch point coordinates to the processor 580, and can receive and execute commands sent by the processor 580. In addition, the touch panel 531 may be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The input unit 530 may include other input devices 532 in addition to the touch panel 531. In particular, other input devices 532 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.

The display unit 540 may be used to display information input by or provided to the user and various menus of the wearable device. The Display unit 540 may include a Display panel 541, and optionally, the Display panel 541 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, the touch panel 531 may cover the display panel 541, and when the touch panel 531 detects a touch operation on or near the touch panel 531, the touch panel is transmitted to the processor 580 to determine the type of the touch event, and then the processor 580 provides a corresponding visual output on the display panel 541 according to the type of the touch event. Although in fig. 5, the touch panel 531 and the display panel 541 are two independent components to implement the input and output functions of the wearable device, in some embodiments, the touch panel 531 and the display panel 541 may be integrated to implement the input and output functions of the wearable device.

The wearable device may also include at least one sensor 550, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that may adjust the brightness of the display panel 541 according to the brightness of ambient light, and a proximity sensor that may turn off the display panel 541 and/or the backlight when the wearable device is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer and tapping), and the like, for recognizing the attitude of the wearable device; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be further configured on the wearable device, detailed description is omitted here.

Audio circuitry 560, speaker 561, microphone 562 may provide an audio interface between the user and the wearable device. The audio circuit 560 may transmit the electrical signal converted from the received audio data to the speaker 561, and convert the electrical signal into a sound signal by the speaker 561 for output; microphone 562, on the other hand, converts collected sound signals into electrical signals that are received by audio circuit 560 and converted into audio data that is processed by audio data output processor 580, either through RF circuit 510 for transmission to, for example, another wearable device, or to output the audio data to memory 520 for further processing.

WiFi belongs to short-range wireless transmission technology, and the wearable device can help the user send and receive e-mails, browse web pages, access streaming media and the like through the WiFi module 570, and provides wireless broadband internet access for the user. Although fig. 5 shows the WiFi module 570, it is understood that it does not belong to the essential constitution of the wearable device, and may be omitted entirely as needed within the scope not changing the essence of the invention.

The processor 580 is a control center of the wearable device, connects various parts of the entire wearable device using various interfaces and lines, and performs various functions of the wearable device and processes data by running or executing software programs and/or modules stored in the memory 520 and calling up the data stored in the memory 520, thereby performing overall monitoring of the wearable device. Alternatively, processor 580 may include one or more processing units; preferably, the processor 580 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 580.

The wearable device also includes a power supply 590 (e.g., a battery) for powering the various components, which may preferably be logically coupled to the processor 580 via a power management system to manage charging, discharging, and power consumption management functions via the power management system.

Although not shown, the wearable device may further include a camera, a bluetooth module, etc., which are not described herein.

In the embodiment of the present invention, the processor 580 included in the wearable device further has the following functions:

Optionally, the processor 580 also has the following functions:

acquiring a first distance between the infrared detection device and the object to be detected; when the first distance is smaller than a preset distance threshold value, the existence of pulse waves of the object to be detected is detected at a second frequency through the infrared detection device.

Optionally, the processor 580 also has the following functions:

the method includes starting a first light emitter in the wearable device and controlling the light emitter to emit green light, and detecting a heart rate of the living body at a third frequency.

Optionally, the processor 580 also has the following functions:

after waiting for a preset time, starting a first light emitter in the wearable device, and controlling the light emitter to emit green light so as to detect the heart rate of the living body; or, directly starting a first light emitter in the wearable device and controlling the light emitter to emit green light so as to periodically detect the heart rate of the living body according to a reflected signal of the green light.

Optionally, the processor 580 also has the following functions:

starting a first light emitter in the wearable device, controlling the light emitter to emit green light, and acquiring the pulse frequency of the pulse wave of the living body at a third frequency; and calculating the heart rate of the living body according to the beating times.

Optionally, the processor 580 also has the following functions:

when the heart rate is within a preset heart rate range, recording and storing the heart rate; when the heart rate is out of the preset heart rate range, outputting first prompt information, wherein the first prompt information is related suggestions provided for the user according to the heart rate.

Optionally, the processor 580 also has the following functions:

when the signal value is smaller than or equal to the preset signal threshold value, closing the wearable equipment; or, if the pulse wave of the object to be detected is not detected at the second frequency through the infrared detection device, determining the object to be detected as a non-living body.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product.

The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to be performed in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that includes one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.

It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is substantially or partly contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A method for detecting a living body, which is applied to a wearable device, comprises the following steps:

and if the pulse wave of the object to be detected is detected to exist at a second frequency through the infrared detection device, determining the object to be detected as a living body, wherein the second frequency is greater than the first frequency.

2. The method according to claim 1, wherein the detecting, by the infrared detection device, the presence of the pulse wave in the object to be detected at the second frequency comprises:

acquiring a first distance between the infrared detection device and the object to be detected;

and when the first distance is smaller than a preset distance threshold value, detecting that the object to be detected has pulse waves at a second frequency through the infrared detection device.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

starting a first light emitter in the wearable device and controlling the light emitter to emit green light, detecting a heart rate of the living body at a third frequency.

4. The method of claim 3, wherein the activating a first light emitter in the wearable device and controlling the light emitter to emit green light to detect a heart rate of the living subject at a third frequency comprises:

after waiting for a preset time, starting a first light emitter in the wearable device, and controlling the light emitter to emit green light so as to detect the heart rate of the living body; or the like, or, alternatively,

directly activating a first light emitter in the wearable device and controlling the light emitter to emit green light to periodically detect the heart rate of the living body according to a reflected signal of the green light.

5. The method of claim 3, wherein the activating a first light emitter in the wearable device and controlling the light emitter to emit green light to detect a heart rate of the living subject at a third frequency comprises:

starting a first light emitter in the wearable device, controlling the light emitter to emit green light, and acquiring the pulse frequency of the pulse wave of the living body at a third frequency;

and calculating the heart rate of the living body according to the beating times.

6. The method of claim 3, further comprising:

when the heart rate is within a preset heart rate range, recording and storing the heart rate;

when the heart rate is out of the preset heart rate range, outputting first prompt information, wherein the first prompt information is related suggestions provided for a user according to the heart rate.

7. The method of claim 1, further comprising:

when the signal value is smaller than or equal to the preset signal threshold value, the wearable equipment is closed; or the like, or, alternatively,

8. A wearable device, comprising:

the determining module is used for determining that the object to be detected exists when the signal value is larger than a preset signal threshold value; and if the pulse wave of the object to be detected is detected to exist at a second frequency through the infrared detection device, determining the object to be detected as a living body, wherein the second frequency is greater than the first frequency.

9. A wearable device, comprising:

a memory storing executable program code;

and a processor coupled to the memory;

the processor invokes the executable program code stored in the memory, which when executed by the processor causes the processor to implement the method of any of claims 1-7.

10. A computer-readable storage medium having executable program code stored thereon, wherein the executable program code, when executed by a processor, implements the method of any of claims 1-7.