WO2018027529A1 - Button operation method, apparatus, and system based on heart-rate signal - Google Patents

Button operation method, apparatus, and system based on heart-rate signal Download PDF

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Publication number
WO2018027529A1
WO2018027529A1 PCT/CN2016/094112 CN2016094112W WO2018027529A1 WO 2018027529 A1 WO2018027529 A1 WO 2018027529A1 CN 2016094112 W CN2016094112 W CN 2016094112W WO 2018027529 A1 WO2018027529 A1 WO 2018027529A1
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Prior art keywords
signal
heart rate
optical signal
intensity
rate signal
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PCT/CN2016/094112
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French (fr)
Chinese (zh)
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张玮
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深圳市汇顶科技股份有限公司
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Priority to CN201680000803.4A priority Critical patent/CN108135513B/en
Priority to PCT/CN2016/094112 priority patent/WO2018027529A1/en
Publication of WO2018027529A1 publication Critical patent/WO2018027529A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate

Definitions

  • Embodiments of the present invention relate to the field of wearable device technologies, and in particular, to a button operation triggering method, apparatus, and system based on a heart rate signal.
  • the heart rate detection module of such a device generally performs heart rate signal detection using the method shown in FIG. 1 in the drawings of the specification.
  • the method mainly utilizes diffuse reflection of light, and the incident light source adopts light of a certain wavelength (for example, green light of 500 nm to 560 nm, red light of 660 nm to 720 nm, etc.), is transmitted to the human body at a certain angle, and then receives the human body through the photoelectric sensor.
  • the optical signal reflected from the detected portion finally decomposes the optical signal to obtain a PPG (Photo Plethysmo Graphy) signal to calculate the heart rate.
  • PPG Photo Plethysmo Graphy
  • the human-computer interaction channel of such a device is usually a button of a peripheral device, and an electrical signal is generated by pressing a button to control the device.
  • Such human-computer interaction requires more hardware support, which is not conducive to the realization of hardware simplification and high integration of such devices.
  • the method and device for triggering the key operation based on the heart rate signal adopt the following technical solutions.
  • the first technical solution adopted by the embodiment of the present invention is: a key operation triggering method based on a heart rate signal, comprising:
  • the heart rate signal is collected through the measured portion, and the intensity of the heart rate signal is detected;
  • the button operation is triggered.
  • the collecting the heart rate signal by the measured part comprises:
  • the optical signal reflected inside the measured part is analyzed to obtain a heart rate signal.
  • the button operation is triggered, including:
  • the button operation is triggered when the peak-to-peak value is less than a preset threshold.
  • the heart rate signal of 1 second is continuously collected.
  • the intensity of the reflected light signal is stable within a preset variation range for a period of time, including:
  • the intensity of the reflected light signal is stable within a preset variation range within 100 milliseconds.
  • the second technical solution adopted by the embodiment of the present invention is: a key operation trigger based on a heart rate signal Devices, including:
  • the optical signal acquisition module is configured to collect an optical signal and a heart rate signal reflected by the measured portion
  • the optical signal detecting module is configured to detect an intensity of the reflected optical signal and an intensity of the heart rate signal
  • the optical signal acquisition module collects an optical signal reflected by the measured portion, and the optical signal detection module detects the intensity of the reflected optical signal;
  • the optical signal acquisition module continuously collects the reflected light signal for a period of time;
  • the optical signal acquisition module collects a heart rate signal through the measured portion, and the optical signal detection module detects the heart rate signal. strength;
  • the optical signal detection module triggers a button operation.
  • the optical signal acquisition module collects a heart rate signal by using the measured part, including:
  • the light signal collecting module emits light to the measured portion, and the intensity of the emitted light is sufficient to be transmitted into the inside of the measured portion;
  • the optical signal acquisition module receives an optical signal reflected by the inside of the measured portion
  • the optical signal acquisition module analyzes an optical signal reflected inside the measured portion to obtain a heart rate signal.
  • the optical signal detection module triggers a button operation, including:
  • the optical signal acquisition module continuously collects a heart rate signal of 1 second, and the optical signal detection module detects The intensity of the heart rate signal;
  • the optical signal detecting module detects an intensity fluctuation peak-to-peak value of the heart rate signal within 1 second;
  • the optical signal detecting module triggers the key operation when the peak-to-peak value is less than a preset threshold.
  • the optical signal collecting module continues to collect a heart rate signal of 1 second.
  • the intensity of the reflected light signal is stable within a preset variation range for a period of time, including:
  • the optical signal detecting module detects that the intensity of the reflected light signal is stable within a preset variation range within 100 milliseconds.
  • the third technical solution adopted by the embodiment of the present invention is: a system, including the heart rate signal-based key operation triggering device described in the foregoing second technical solution.
  • the optical signal reflected by the measured portion is collected and the intensity of the reflected optical signal is detected.
  • the intensity of the reflected light signal is within a preset threshold range
  • the reflected light signal is continuously acquired for a period of time, and the intensity of the reflected light signal is detected.
  • a heart rate signal is collected through the measured portion, and the intensity of the heart rate signal is detected.
  • the button operation is triggered.
  • the embodiment of the invention can reduce the hardware for realizing the key operation, and is advantageous for realizing extremely simplified and highly integrated hardware.
  • FIG. 1 is a schematic diagram of a method for detecting a heart rate signal of a human body.
  • FIG. 2 is a flowchart of a method for triggering a key operation based on a heart rate signal according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a human body light signal and a non-human body light signal according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of signal intensity ⁇ AC2 transmitted through the interior of a human body and then reflected back to the device sensing device according to an embodiment of the invention.
  • FIG. 5 is a schematic diagram showing the characteristics of a heart rate signal under different pressure values according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a button operation triggering device based on a heart rate signal according to an embodiment of the present invention.
  • the method for triggering a key operation based on a heart rate signal according to an embodiment of the present invention includes the following contents:
  • Step S1 collecting an optical signal reflected by the measured portion and detecting the intensity of the reflected optical signal.
  • step S1 the purpose of step S1 is to determine whether the optical signal reflected by the measured portion is a human body optical signal.
  • the absorption rate and reflectance of light exhibit a specific ratio due to the optical characteristics of the skin. According to this feature, it can be determined whether the optical signal reflected by the measured part is a human body light signal.
  • the illumination power of the incident light source is automatically reduced, the optical signal reflected by the measured portion is collected, and the intensity of the reflected optical signal is detected, and whether the received optical signal is a human body optical signal is determined.
  • ⁇ DC1 represents the signal intensity of light reflected from the non-human surface to the device sensing device. Usually, since light is difficult to transmit into the non-human body, the non-human light signal does not have the intensity change caused by the light transmitted into the non-human body.
  • ⁇ DC2 represents the signal intensity of light reflected from the surface of the human skin back to the device sensing device, while ⁇ AC2 represents the signal intensity of light transmitted to the interior of the body and then reflected back to the device sensing device.
  • the signal intensity reflected by the surface of the human skin is in a fixed threshold range.
  • ⁇ DC2 the light intensity of the incident light source is different, the surface of the human skin is reflected.
  • the fixed threshold range of the signal strength is also different, it can be determined that the induced optical signal is a human body optical signal.
  • Step S2 When the intensity of the reflected light signal is within a preset threshold range, continuously collect the reflected light signal for a period of time.
  • the purpose of performing step S2 is to determine whether the stability of the reflected optical signal satisfies the requirement of collecting the heart rate signal.
  • the reflected light signal when the intensity of the reflected light signal is within a preset threshold range, the reflected light signal is continuously acquired within 100 milliseconds, and the intensity change of the reflected light signal within 100 milliseconds is detected.
  • the reflected light signal in a period of time is continuously acquired. If the intensity fluctuation range of the reflected light signal is within a preset fluctuation range within 100 milliseconds (the preset fluctuation range refers to the light with the incident light source) In the normal fluctuation range corresponding to the intensity, when the light intensity of the incident light source is different, and the intensity of the reflected light signal corresponding to the normal fluctuation range is also different, it is considered that the stability of the reflected light signal satisfies the requirement of collecting the heart rate signal.
  • Step S3 When the intensity of the reflected light signal is stable within a preset variation range, the heart rate signal is collected through the measured portion, and the intensity of the heart rate signal is detected.
  • the heart rate signal is collected through the measured portion.
  • the device emits light to the measured portion, and the intensity of the emitted light is sufficient to be transmitted into the inside of the measured portion, and receives an optical signal reflected by the inside of the measured portion, and analyzes the inside of the measured portion.
  • the reflected light signal gives a heart rate signal.
  • the volume of blood inside the body will show a specific change as the heart beats.
  • the volume of blood in the portion through which the light is transmitted will also exhibit a specific change.
  • FIG. 4 a schematic diagram of signal intensity ⁇ AC2 transmitted to the interior of a human body and then reflected back to the device sensing device according to an embodiment of the present invention is shown.
  • the variation characteristic of ⁇ AC2 exhibits a variation characteristic of the blood volume within the light transmitting portion, that is, the heart rate characteristic of the human body. Therefore, the change in signal intensity of ⁇ AC2, which can be transmitted to the inside of the human body and then reflected back to the device sensing device, reflects the change in signal intensity of the human heart rate signal.
  • increasing the luminous power can increase the intensity of the optical signal, so that the characteristics of the collected heart rate signal are more obvious.
  • Step S4 When the strength of the heart rate signal is less than a preset threshold for a period of time, the button operation is triggered.
  • the device squeezes the human tissue of the light transmitting portion, and the blood is not circulated due to the compression of the subcutaneous tissue such as blood vessels, and the heart rate signal is weakened or even disappeared by the influence of the heart rate signal.
  • the pressure of the button is larger, the intensity of the heart rate signal becomes weaker.
  • FIG. 5 there is shown the characteristics of a heart rate signal at different pressure values in accordance with an embodiment of the present invention.
  • Pressure value when pressed 100g is increased to 500g, and a single increase of 100g, it can be clearly observed in Figure 5 that the intensity of the heart rate signal gradually decreases as the pressure value increases.
  • the subcutaneous tissue such as blood vessels is compressed, the blood does not circulate, and the intensity of the heart rate signal is weakened or even disappeared.
  • Normal people's heart rate is 30BPM ⁇ 220BPM (Beat Per Minute beats per minute), so at least half of the heart rate waveform can be detected in 1 second.
  • a heart rate signal of 1 second continuously collecting a heart rate signal of 1 second and detecting the intensity of the heart rate signal, detecting an intensity fluctuation peak-to-peak value of the heart rate signal within 1 second, and triggering a button when the peak-to-peak value is less than a preset threshold operating.
  • the heart rate signal of 1 second is continuously collected. Then search for the peaks and troughs of the heart rate signal.
  • the button operation is triggered.
  • the button operation triggering method based on the heart rate signal determines whether the body light signal is a human body by collecting an optical signal reflected by the measured portion and detecting the intensity of the reflected light signal. When the intensity of the reflected light signal is within a preset threshold range, continuously collecting the reflected light signal for a period of time, and detecting the intensity change of the reflected light signal within 100 milliseconds, and determining the stability of the reflected light signal. Whether the requirements for collecting heart rate signals are met.
  • the key operation triggering method based on the heart rate signal can reduce the hardware for realizing the key operation, and is advantageous for achieving extremely simplified and highly integrated hardware.
  • FIG. 6 is a schematic diagram of a button operation triggering device based on a heart rate signal according to an embodiment of the present invention.
  • the button operation triggering device based on the heart rate signal according to the embodiment of the invention includes:
  • the optical signal acquisition module 100 and the optical signal detection module 200 are The optical signal acquisition module 100 and the optical signal detection module 200.
  • the optical signal acquisition module 100 is configured to collect an optical signal and a heart rate signal reflected by the measured portion.
  • the optical signal detecting module 200 is configured to detect an intensity of the reflected optical signal and an intensity of the heart rate signal.
  • the optical signal acquisition module 100 collects an optical signal reflected by the measured portion, and the optical signal detection module 200 detects the intensity of the reflected optical signal.
  • the optical signal detecting module 200 detects that the intensity of the reflected optical signal is stable within a preset variation range within 100 milliseconds.
  • the optical signal acquisition module 100 continuously collects the reflected light signal for a period of time.
  • the optical signal acquisition module 100 collects a heart rate signal through the measured portion, and the optical signal detection module 200 detects the heart rate. The strength of the signal.
  • the optical signal acquisition module 100 emits light to the measured portion, and the intensity of the emitted light is sufficient to be transmitted into the inside of the measured portion.
  • the optical signal acquisition module 100 receives an optical signal reflected by the inside of the measured portion.
  • the optical signal acquisition module 100 analyzes the optical signal reflected inside the measured portion to obtain a heart rate signal.
  • the optical signal detection module 200 triggers a key operation.
  • the optical signal acquisition module 100 continuously collects a heart rate signal of 1 second, and the optical signal detection module 200 detects the strength of the heart rate signal.
  • the optical signal detection module 200 detects an intensity fluctuation peak-to-peak value of the heart rate signal within 1 second.
  • the optical signal detecting module 200 triggers the key operation when the peak-to-peak value is less than a preset threshold.
  • the optical signal detecting module 200 detects that the peak-to-peak value is greater than a preset threshold
  • the optical signal acquisition module 100 continues to acquire a heart rate signal of 1 second.
  • the optical signal detecting module 200 continues to detect the intensity fluctuation peak-to-peak value of the heart rate signal within 1 second.
  • the optical signal detecting module 200 triggers the key operation when the peak-to-peak value is less than a preset threshold.
  • the optical signal acquisition module 100 collects an optical signal reflected by the measured portion, and then the optical signal detecting module 200 detects the intensity of the reflected optical signal. .
  • the optical signal detecting module 200 determines that the optical signal collected by the optical signal acquiring module 100 is a human body optical signal, if the intensity of the reflected light signal is within a preset threshold.
  • the light signal collecting module 100 continuously collects the reflected light signal for a period of time, and then the light signal detecting module 200 detects the intensity of the reflected light signal, and determines the The stability of the reflected light signal.
  • the optical signal acquisition module 100 continuously collects optical signals in a time period, and the optical signal detection module 200 determines whether the intensity of the reflected optical signals is stable within a preset variation range within 100 milliseconds. If within 100 milliseconds, the fluctuation range of the optical signal is stabilized within a preset fluctuation range (the predetermined fluctuation range means that the light intensity of the incident light source is different within a normal fluctuation range corresponding to the light intensity of the incident light source) The normal fluctuation range of the corresponding optical signal is also different. It is considered that the stability of the optical signal satisfies the requirement of collecting the heart rate signal.
  • the optical signal acquisition module 100 continuously collects the heart rate signal for a period of time, and the optical signal detection module 200 detects the strength of the heart rate signal to meet the preset condition.
  • the button operation is triggered.
  • the wearable device that is equipped with the heart rate signal-based button operation triggering device automatically reduces the light source when the light source detects whether the light signal reflected by the measured portion is a human body light signal.
  • the luminous power is used to save energy and extend the life of the device.
  • the device increases the light-emitting power of the light source to enhance the characteristics of the heart rate signal.
  • an embodiment of the present invention discloses a system, where the system includes a button operation triggering device based on a heart rate signal.
  • the system is a wearable device that includes the heart rate signal based button operation triggering device.
  • the system is a wearable device that includes the heart rate signal based button operation triggering device, the meaning of the term "system” refers to the inclusion of multiple hardware.
  • the module's wearable device as a whole. For example, a smart bracelet that can run application software and has communication capabilities.
  • the system includes: a wearable device equipped with the heart rate signal-based key operation triggering device, and a terminal for supporting the heart rate signal-based key operation triggering device to perform its function.
  • the terminal controls operation of the heart rate signal based key operation triggering device. For example, controlling the sensitivity of the heart rate signal based key operation triggering device during operation, controlling the opening and closing of the heart rate signal based key operation triggering device, and the like.
  • the terminal includes, but is not limited to, a smart phone, a tablet computer, a notebook computer, a desktop computer, and the like.
  • the button operation triggering device based on the heart rate signal collects the optical signal and the heart rate signal reflected by the measured portion through the optical signal collecting module 100, and detects the intensity of the reflected optical signal by the optical signal detecting module 200, and determines the Whether the reflected light signal is a human body light signal.
  • the intensity of the reflected light signal is detected by the optical signal detecting module 200, and it is determined whether the stability of the reflected optical signal satisfies the requirement of acquiring a heart rate signal.
  • the intensity of the heart rate signal is detected by the optical signal detecting module 200, and when the preset condition is met, the button operation is triggered. Therefore, the heart rate signal based on the embodiment of the present invention
  • the button operation triggering device can effectively sense the button triggering operation, can reduce the hardware for realizing the button operation, and is beneficial to realize the extremely simplified and highly integrated hardware.

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Abstract

Provided are a button operation method, apparatus, and system based on a heart-rate signal, relating to the technical field of wearable devices. The method comprises: acquiring an optical signal reflected by a tested part and measuring the strength of the reflected optical signal (S1); if the strength of the reflected optical signal is located within a preset threshold range, continuously acquiring the reflected optical signal within a period of time (S2); if the strength of the reflected optical signal within the period of time is stable to within a preset range of variation, then acquiring a heart-rate signal by means of the tested part and measuring the strength of the heart-rate signal (S3); if the strength of the heart-rate signal is smaller than a preset threshold within a period of time, then triggering the operation of the button (S4). The method reduces the hardware for performing a button operation and also makes the hardware simpler and more highly integrated.

Description

一种基于心率信号的按键操作触发方法、装置及系统Button operation triggering method, device and system based on heart rate signal 技术领域Technical field
本发明实施例涉及可穿戴设备技术领域，尤其涉及一种基于心率信号的按键操作触发方法、装置及系统。Embodiments of the present invention relate to the field of wearable device technologies, and in particular, to a button operation triggering method, apparatus, and system based on a heart rate signal.
背景技术Background technique
随着技术的发展，越来越多的智能可穿戴设备搭载了光学检测心率的装置，例如智能手环、智能手表、心率耳机等。With the development of technology, more and more smart wearable devices are equipped with devices that optically detect heart rate, such as smart bracelets, smart watches, heart rate headphones, and the like.
此类设备的心率检测模块，通常采用说明书附图中图1所示的方法进行心率信号检测。所述方法主要利用光的漫反射，入射光源采用一定波长的光(例如500nm-560nm的绿光、660nm-720nm的红光等)，以一定的角度透射至人体，然后通过光电传感器接收经人体被探测部位反射回来的光信号，最终分解光信号获得PPG(Photo Plethysmo Graphy利用光电容积脉搏波描记法)信号计算心率。The heart rate detection module of such a device generally performs heart rate signal detection using the method shown in FIG. 1 in the drawings of the specification. The method mainly utilizes diffuse reflection of light, and the incident light source adopts light of a certain wavelength (for example, green light of 500 nm to 560 nm, red light of 660 nm to 720 nm, etc.), is transmitted to the human body at a certain angle, and then receives the human body through the photoelectric sensor. The optical signal reflected from the detected portion finally decomposes the optical signal to obtain a PPG (Photo Plethysmo Graphy) signal to calculate the heart rate.
现有技术中，此类设备的人机交互渠道通常为外设的按键，通过挤压按键产生电信号，实现对设备的控制。这样的人机交互方式需要较多的硬件支撑，不利于实现此类设备的硬件极简化与高度集成化。In the prior art, the human-computer interaction channel of such a device is usually a button of a peripheral device, and an electrical signal is generated by pressing a button to control the device. Such human-computer interaction requires more hardware support, which is not conducive to the realization of hardware simplification and high integration of such devices.
发明内容Summary of the invention
为了减少可穿戴设备按键操作的硬件，本发明实施例所述的一种基于心率信号的按键操作触发方法及装置采用了以下的技术方案。 In order to reduce the hardware of the operation of the button of the wearable device, the method and device for triggering the key operation based on the heart rate signal according to the embodiment of the present invention adopt the following technical solutions.
本发明实施例采用的第一技术方案为：一种基于心率信号的按键操作触发方法，包括：The first technical solution adopted by the embodiment of the present invention is: a key operation triggering method based on a heart rate signal, comprising:
采集被测部位反射的光信号并检测所述反射光信号的强度；Collecting an optical signal reflected by the measured portion and detecting the intensity of the reflected optical signal;
所述反射光信号的强度位于预设阈值范围内时，连续采集一段时间内的所述反射光信号；When the intensity of the reflected light signal is within a preset threshold range, continuously collecting the reflected light signal for a period of time;
所述反射光信号的强度在所述一段时间内稳定在预设变化范围内时，通过所述被测部位采集心率信号，并检测所述心率信号的强度；When the intensity of the reflected light signal is stable within a preset variation range, the heart rate signal is collected through the measured portion, and the intensity of the heart rate signal is detected;
所述心率信号的强度在一段时间内小于预设阈值时，触发按键操作。When the strength of the heart rate signal is less than a preset threshold for a period of time, the button operation is triggered.
优选的，所述通过所述被测部位采集心率信号，包括：Preferably, the collecting the heart rate signal by the measured part comprises:
向所述被测部位发射光，所述发射光的强度足以透射入所述被测部位内部；Transmitting light to the measured portion, the intensity of the emitted light being sufficient to be transmitted into the interior of the measured portion;
接收由所述被测部位内部反射的光信号；Receiving an optical signal reflected by the inside of the measured portion;
分析所述被测部位内部反射的光信号，得到心率信号。The optical signal reflected inside the measured part is analyzed to obtain a heart rate signal.
优选的，所述心率信号的强度在一段时间内小于预设阈值时，触发按键操作，包括：Preferably, when the strength of the heart rate signal is less than a preset threshold for a period of time, the button operation is triggered, including:
连续采集1秒的心率信号并检测所述心率信号的强度；Continuously acquiring a heart rate signal of 1 second and detecting the intensity of the heart rate signal;
检测所述心率信号在1秒内的强度波动峰-峰值；Detecting a peak-to-peak intensity fluctuation of the heart rate signal within 1 second;
在所述峰-峰值小于预设阈值时，触发所述按键操作。The button operation is triggered when the peak-to-peak value is less than a preset threshold.
优选的，所述峰-峰值大于预设阈值时，继续采集1秒的心率信号。Preferably, when the peak-to-peak value is greater than a preset threshold, the heart rate signal of 1 second is continuously collected.
优选的，所述反射光信号的强度在一段时间内稳定在预设变化范围内，包括：Preferably, the intensity of the reflected light signal is stable within a preset variation range for a period of time, including:
所述反射光信号的强度在100毫秒内稳定在预设变化范围内。The intensity of the reflected light signal is stable within a preset variation range within 100 milliseconds.
本发明实施例采用的第二技术方案为：一种基于心率信号的按键操作触发 装置，包括：The second technical solution adopted by the embodiment of the present invention is: a key operation trigger based on a heart rate signal Devices, including:
光信号采集模块和光信号检测模块；Optical signal acquisition module and optical signal detection module;
所述光信号采集模块用于采集被测部位反射的光信号和心率信号；The optical signal acquisition module is configured to collect an optical signal and a heart rate signal reflected by the measured portion;
所述光信号检测模块用于检测所述反射光信号的强度和所述心率信号的强度；The optical signal detecting module is configured to detect an intensity of the reflected optical signal and an intensity of the heart rate signal;
所述光信号采集模块采集被测部位反射的光信号，所述光信号检测模块检测所述反射光信号的强度；The optical signal acquisition module collects an optical signal reflected by the measured portion, and the optical signal detection module detects the intensity of the reflected optical signal;
所述反射光信号的强度位于预设阈值范围内时，所述光信号采集模块连续采集一段时间内的所述反射光信号；When the intensity of the reflected light signal is within a preset threshold range, the optical signal acquisition module continuously collects the reflected light signal for a period of time;
所述反射光信号的强度在所述一段时间内稳定在预设变化范围内时，所述光信号采集模块通过所述被测部位采集心率信号，所述光信号检测模块检测所述心率信号的强度；When the intensity of the reflected light signal is stable within a preset variation range, the optical signal acquisition module collects a heart rate signal through the measured portion, and the optical signal detection module detects the heart rate signal. strength;
所述心率信号的强度在一段时间内小于预设阈值时，所述光信号检测模块触发按键操作。When the intensity of the heart rate signal is less than a preset threshold for a period of time, the optical signal detection module triggers a button operation.
优选的，所述光信号采集模块通过所述被测部位采集心率信号，包括：Preferably, the optical signal acquisition module collects a heart rate signal by using the measured part, including:
所述光信号采集模块向所述被测部位发射光，所述发射光的强度足以透射入所述被测部位内部；The light signal collecting module emits light to the measured portion, and the intensity of the emitted light is sufficient to be transmitted into the inside of the measured portion;
所述光信号采集模块接收由所述被测部位内部反射的光信号；The optical signal acquisition module receives an optical signal reflected by the inside of the measured portion;
所述光信号采集模块分析所述被测部位内部反射的光信号，得到心率信号。The optical signal acquisition module analyzes an optical signal reflected inside the measured portion to obtain a heart rate signal.
优选的，所述心率信号的强度在一段时间内小于预设阈值时，所述光信号检测模块触发按键操作，包括：Preferably, when the intensity of the heart rate signal is less than a preset threshold for a period of time, the optical signal detection module triggers a button operation, including:
所述光信号采集模块连续采集1秒的心率信号，所述光信号检测模块检测 所述心率信号的强度；The optical signal acquisition module continuously collects a heart rate signal of 1 second, and the optical signal detection module detects The intensity of the heart rate signal;
所述光信号检测模块检测所述心率信号在1秒内的强度波动峰-峰值；The optical signal detecting module detects an intensity fluctuation peak-to-peak value of the heart rate signal within 1 second;
在所述峰-峰值小于预设阈值时，所述光信号检测模块触发所述按键操作。The optical signal detecting module triggers the key operation when the peak-to-peak value is less than a preset threshold.
优选的，所述光信号检测模块检测到所述峰-峰值大于预设阈值时，所述光信号采集模块继续采集1秒的心率信号。Preferably, when the optical signal detecting module detects that the peak-to-peak value is greater than a preset threshold, the optical signal collecting module continues to collect a heart rate signal of 1 second.
优选的，所述反射光信号的强度在一段时间内稳定在预设变化范围内，包括：Preferably, the intensity of the reflected light signal is stable within a preset variation range for a period of time, including:
所述光信号检测模块检测所述反射光信号的强度在100毫秒内稳定在预设变化范围内。The optical signal detecting module detects that the intensity of the reflected light signal is stable within a preset variation range within 100 milliseconds.
本发明实施例采用的第三技术方案为：一种系统，包括前述第二技术方案中所述的基于心率信号的按键操作触发装置。The third technical solution adopted by the embodiment of the present invention is: a system, including the heart rate signal-based key operation triggering device described in the foregoing second technical solution.
本发明实施例通过采集被测部位反射的光信号并检测所述反射光信号的强度。当所述反射光信号的强度位于预设阈值范围内时，连续采集一段时间内的所述反射光信号，并检测所述反射光信号的强度。当所述反射光信号的强度在所述一段时间内稳定在预设变化范围内时，通过所述被测部位采集心率信号，并检测所述心率信号的强度。所述心率信号的强度在一段时间内小于预设阈值时，触发按键操作。本发明实施例可以减少实现按键操作的硬件，有利于实现硬件的极简化和高度集成化。In the embodiment of the invention, the optical signal reflected by the measured portion is collected and the intensity of the reflected optical signal is detected. When the intensity of the reflected light signal is within a preset threshold range, the reflected light signal is continuously acquired for a period of time, and the intensity of the reflected light signal is detected. When the intensity of the reflected light signal is stable within a preset variation range for the period of time, a heart rate signal is collected through the measured portion, and the intensity of the heart rate signal is detected. When the strength of the heart rate signal is less than a preset threshold for a period of time, the button operation is triggered. The embodiment of the invention can reduce the hardware for realizing the key operation, and is advantageous for realizing extremely simplified and highly integrated hardware.
附图说明DRAWINGS
图1为人体心率信号检测方法示意图。FIG. 1 is a schematic diagram of a method for detecting a heart rate signal of a human body.
图2为本发明实施例所述基于心率信号的按键操作触发方法的流程图。 FIG. 2 is a flowchart of a method for triggering a key operation based on a heart rate signal according to an embodiment of the present invention.
图3为本发明实施例所述人体光信号和非人体光信号的示意图。FIG. 3 is a schematic diagram of a human body light signal and a non-human body light signal according to an embodiment of the present invention.
图4为本发明实施例所述光线透射至人体内部然后反射回设备感应装置的信号强度ΔAC2的示意图。4 is a schematic diagram of signal intensity ΔAC2 transmitted through the interior of a human body and then reflected back to the device sensing device according to an embodiment of the invention.
图5为本发明实施例不同压力值下心率信号的特征示意图。FIG. 5 is a schematic diagram showing the characteristics of a heart rate signal under different pressure values according to an embodiment of the present invention.
图6为本发明实施例所述基于心率信号的按键操作触发装置的示意图。FIG. 6 is a schematic diagram of a button operation triggering device based on a heart rate signal according to an embodiment of the present invention.
具体实施方式detailed description
为了便于理解本发明，下面将参照相关附图对本发明进行更全面的描述。附图中给出了本发明的较佳实施例。但是，本发明可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使对本发明的公开内容的理解更加透彻全面。In order to facilitate the understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the understanding of the present disclosure will be more fully understood.
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention.
参考图2，为本发明实施例所述基于心率信号的按键操作触发方法的流程图。本发明实施例所述的基于心率信号的按键操作触发方法包括以下内容：2 is a flowchart of a method for triggering a key operation based on a heart rate signal according to an embodiment of the present invention. The method for triggering a key operation based on a heart rate signal according to an embodiment of the present invention includes the following contents:
步骤S1：采集被测部位反射的光信号并检测所述反射光信号的强度。Step S1: collecting an optical signal reflected by the measured portion and detecting the intensity of the reflected optical signal.
在本发明实施例中，步骤S1的目的是，用于判断被测部位反射的光信号是否为人体光信号。In the embodiment of the present invention, the purpose of step S1 is to determine whether the optical signal reflected by the measured portion is a human body optical signal.
当特定波长的光照射到人体皮肤表面时，由于皮肤的光学特性，对光的吸收率和反射率呈现特定的比例。根据这一特点，便可判断出被测部位反射的光信号是否为人体光信号。 When light of a specific wavelength is irradiated onto the surface of human skin, the absorption rate and reflectance of light exhibit a specific ratio due to the optical characteristics of the skin. According to this feature, it can be determined whether the optical signal reflected by the measured part is a human body light signal.
可选的，设备开启后便自动减小入射光源的发光功率，采集被测部位反射的光信号并检测所述反射光信号的强度，判断其接收到的光信号是否为人体光信号。Optionally, after the device is turned on, the illumination power of the incident light source is automatically reduced, the optical signal reflected by the measured portion is collected, and the intensity of the reflected optical signal is detected, and whether the received optical signal is a human body optical signal is determined.
参考图3，为本发明实施例所述人体光信号和非人体光信号的示意图。ΔDC1表示光线从非人体表面反射回设备感应装置的信号强度。通常情况下，由于光线难以透射进入非人体内部，所以非人体光信号不会有光线透射进入非人体内部导致的强度变化。ΔDC2表示光线从人体皮肤表面反射回设备感应装置的信号强度，而ΔAC2表示光线透射至人体内部然后反射回设备感应装置的信号强度。当入射光源以一定的光强度照射人体皮肤表面时，人体皮肤表面反射的信号强度处于一个固定的阈值范围，当ΔDC2处于这一固定阈值范围(入射光源的光强度不同时，人体皮肤表面反射的信号强度所处的固定阈值范围也不同)时，即可判断出感应到的光信号为人体光信号。3 is a schematic diagram of a human body optical signal and a non-human body optical signal according to an embodiment of the present invention. ΔDC1 represents the signal intensity of light reflected from the non-human surface to the device sensing device. Usually, since light is difficult to transmit into the non-human body, the non-human light signal does not have the intensity change caused by the light transmitted into the non-human body. ΔDC2 represents the signal intensity of light reflected from the surface of the human skin back to the device sensing device, while ΔAC2 represents the signal intensity of light transmitted to the interior of the body and then reflected back to the device sensing device. When the incident light source illuminates the surface of the human skin with a certain light intensity, the signal intensity reflected by the surface of the human skin is in a fixed threshold range. When ΔDC2 is in this fixed threshold range (the light intensity of the incident light source is different, the surface of the human skin is reflected. When the fixed threshold range of the signal strength is also different, it can be determined that the induced optical signal is a human body optical signal.
步骤S2：所述反射光信号的强度位于预设阈值范围内时，连续采集一段时间内的所述反射光信号。Step S2: When the intensity of the reflected light signal is within a preset threshold range, continuously collect the reflected light signal for a period of time.
在本发明实施例中，如果被测部位反射的光信号是人体光信号，实施步骤S2的目的是，判断反射光信号的稳定性能否满足采集心率信号的要求。In the embodiment of the present invention, if the optical signal reflected by the measured portion is a human body optical signal, the purpose of performing step S2 is to determine whether the stability of the reflected optical signal satisfies the requirement of collecting the heart rate signal.
可选的，所述反射光信号的强度位于预设阈值范围内时，连续采集100毫秒内的所述反射光信号，并检测所述反射光信号在100毫秒内的强度变化。Optionally, when the intensity of the reflected light signal is within a preset threshold range, the reflected light signal is continuously acquired within 100 milliseconds, and the intensity change of the reflected light signal within 100 milliseconds is detected.
具体为，连续采集一个时间段内的反射光信号，如果在100毫秒内，反射光信号的强度波动范围稳定在预设波动范围内(所述预设波动范围指的是，与入射光源的光强度相对应的正常波动范围内，入射光源的光强度不同时，与之对应的反射光信号的强度正常波动范围也不同)，则认为反射光信号的稳定性满足采集心率信号的要求。 Specifically, the reflected light signal in a period of time is continuously acquired. If the intensity fluctuation range of the reflected light signal is within a preset fluctuation range within 100 milliseconds (the preset fluctuation range refers to the light with the incident light source) In the normal fluctuation range corresponding to the intensity, when the light intensity of the incident light source is different, and the intensity of the reflected light signal corresponding to the normal fluctuation range is also different, it is considered that the stability of the reflected light signal satisfies the requirement of collecting the heart rate signal.
步骤S3：所述反射光信号的强度在所述一段时间内稳定在预设变化范围内时，通过所述被测部位采集心率信号，并检测所述心率信号的强度。Step S3: When the intensity of the reflected light signal is stable within a preset variation range, the heart rate signal is collected through the measured portion, and the intensity of the heart rate signal is detected.
可选的，所述反射光信号的强度在100毫秒内稳定在预设变化范围内时，通过所述被测部位采集心率信号。Optionally, when the intensity of the reflected light signal is stable within a preset variation range within 100 milliseconds, the heart rate signal is collected through the measured portion.
可选的，向所述被测部位发射光，所述发射光的强度足以透射入所述被测部位内部，接收由所述被测部位内部反射出的光信号，分析所述被测部位内部反射的光信号，得到心率信号。Optionally, the device emits light to the measured portion, and the intensity of the emitted light is sufficient to be transmitted into the inside of the measured portion, and receives an optical signal reflected by the inside of the measured portion, and analyzes the inside of the measured portion. The reflected light signal gives a heart rate signal.
人体内部的血液容积会随着心脏的跳动呈现出特定的变化。当光线透射至人体内部时，被光线透射部位内的血液容积也将呈现出特定的变化。The volume of blood inside the body will show a specific change as the heart beats. When light is transmitted to the inside of the human body, the volume of blood in the portion through which the light is transmitted will also exhibit a specific change.
参考图4，为本发明实施例所述光线透射至人体内部然后反射回设备感应装置的信号强度ΔAC2的示意图。ΔAC2的变化特征呈现的是被光线透射部位内的血液容积的变化特征，也即人体的心率特征。因此，可以用光线透射至人体内部然后反射回设备感应装置的ΔAC2的信号强度变化反映人体心率信号的信号强度变化。Referring to FIG. 4, a schematic diagram of signal intensity ΔAC2 transmitted to the interior of a human body and then reflected back to the device sensing device according to an embodiment of the present invention is shown. The variation characteristic of ΔAC2 exhibits a variation characteristic of the blood volume within the light transmitting portion, that is, the heart rate characteristic of the human body. Therefore, the change in signal intensity of ΔAC2, which can be transmitted to the inside of the human body and then reflected back to the device sensing device, reflects the change in signal intensity of the human heart rate signal.
可选的，增大发光功率可以增加光信号的强度，使得采集到的心率信号的特征更为明显。Optionally, increasing the luminous power can increase the intensity of the optical signal, so that the characteristics of the collected heart rate signal are more obvious.
步骤S4：所述心率信号的强度在一段时间内小于预设阈值时，触发按键操作。Step S4: When the strength of the heart rate signal is less than a preset threshold for a period of time, the button operation is triggered.
按键时，设备挤压光线透射部位的人体组织，由于血管等皮下组织受到压迫，导致血液不流通，心率信号受此影响也会减弱甚至到消失。当按键的压力越大时，心率信号的强度变弱越明显。When the button is pressed, the device squeezes the human tissue of the light transmitting portion, and the blood is not circulated due to the compression of the subcutaneous tissue such as blood vessels, and the heart rate signal is weakened or even disappeared by the influence of the heart rate signal. When the pressure of the button is larger, the intensity of the heart rate signal becomes weaker.
参考图5，为本发明实施例不同压力值下心率信号的特征。按压时压力值从 100g提升至500g，且单次增加100g，在图5中可以明显观察到，心率信号的强度随着压力值的增加而逐渐减弱。由于血管等皮下组织受到压迫，导致血液不流通，致使心率信号的强度也会减弱甚至到消失。正常人的心率为30BPM～220BPM(Beat Per Minute每分钟心跳次数)，所以在1秒时间内至少能检测到半个心率波形。Referring to Figure 5, there is shown the characteristics of a heart rate signal at different pressure values in accordance with an embodiment of the present invention. Pressure value when pressed 100g is increased to 500g, and a single increase of 100g, it can be clearly observed in Figure 5 that the intensity of the heart rate signal gradually decreases as the pressure value increases. As the subcutaneous tissue such as blood vessels is compressed, the blood does not circulate, and the intensity of the heart rate signal is weakened or even disappeared. Normal people's heart rate is 30BPM ~ 220BPM (Beat Per Minute beats per minute), so at least half of the heart rate waveform can be detected in 1 second.
可选的，连续采集1秒的心率信号并检测所述心率信号的强度，检测所述心率信号在1秒内的强度波动峰-峰值，在所述峰-峰值小于预设阈值时，触发按键操作。Optionally, continuously collecting a heart rate signal of 1 second and detecting the intensity of the heart rate signal, detecting an intensity fluctuation peak-to-peak value of the heart rate signal within 1 second, and triggering a button when the peak-to-peak value is less than a preset threshold operating.
可选的，检测到所述峰-峰值大于预设阈值时，继续采集1秒的心率信号。然后搜索心率信号的波峰和波谷，当最大峰-峰值小于预设的阈值时，则触发按键操作。Optionally, when the peak-to-peak value is detected to be greater than a preset threshold, the heart rate signal of 1 second is continuously collected. Then search for the peaks and troughs of the heart rate signal. When the maximum peak-to-peak value is less than the preset threshold, the button operation is triggered.
本发明实施例所述基于心率信号的按键操作触发方法，通过采集被测部位反射的光信号并检测所述反射光信号的强度，判断是否为人体光信号。当所述反射光信号的强度位于预设阈值范围内时，连续采集一段时间内的所述反射光信号，并检测所述反射光信号在100毫秒内的强度变化，判断反射光信号的稳定性是否满足采集心率信号的要求。当所述反射光信号的强度在100毫秒内稳定在预设变化范围内时，连续采集1秒的心率信号并检测所述心率信号的强度，检测所述心率信号在1秒内的强度波动峰-峰值，在所述峰-峰值小于预设阈值时，触发所述按键操作。因而，本发明实施例所述基于心率信号的按键操作触发方法，可以减少实现按键操作的硬件，有利于实现硬件的极简化和高度集成化。The button operation triggering method based on the heart rate signal according to the embodiment of the present invention determines whether the body light signal is a human body by collecting an optical signal reflected by the measured portion and detecting the intensity of the reflected light signal. When the intensity of the reflected light signal is within a preset threshold range, continuously collecting the reflected light signal for a period of time, and detecting the intensity change of the reflected light signal within 100 milliseconds, and determining the stability of the reflected light signal. Whether the requirements for collecting heart rate signals are met. When the intensity of the reflected light signal is stable within a preset variation range within 100 milliseconds, the heart rate signal of 1 second is continuously acquired and the intensity of the heart rate signal is detected, and the intensity fluctuation peak of the heart rate signal within 1 second is detected. a peak value that triggers the key operation when the peak-to-peak value is less than a preset threshold. Therefore, the key operation triggering method based on the heart rate signal according to the embodiment of the present invention can reduce the hardware for realizing the key operation, and is advantageous for achieving extremely simplified and highly integrated hardware.
参考图6，为本发明实施例所述基于心率信号的按键操作触发装置的示意图。本发明实施例所述的基于心率信号的按键操作触发装置包括：FIG. 6 is a schematic diagram of a button operation triggering device based on a heart rate signal according to an embodiment of the present invention. The button operation triggering device based on the heart rate signal according to the embodiment of the invention includes:
光信号采集模块100和光信号检测模块200。 The optical signal acquisition module 100 and the optical signal detection module 200.
所述光信号采集模块100用于采集被测部位反射的光信号和心率信号。The optical signal acquisition module 100 is configured to collect an optical signal and a heart rate signal reflected by the measured portion.
所述光信号检测模块200用于检测所述反射光信号的强度和所述心率信号的强度。The optical signal detecting module 200 is configured to detect an intensity of the reflected optical signal and an intensity of the heart rate signal.
所述光信号采集模块100采集被测部位反射的光信号，所述光信号检测模块200检测所述反射光信号的强度。The optical signal acquisition module 100 collects an optical signal reflected by the measured portion, and the optical signal detection module 200 detects the intensity of the reflected optical signal.
可选的，所述光信号检测模块200检测所述反射光信号的强度在100毫秒内稳定在预设变化范围内。Optionally, the optical signal detecting module 200 detects that the intensity of the reflected optical signal is stable within a preset variation range within 100 milliseconds.
所述反射光信号的强度位于预设阈值范围内时，所述光信号采集模块100连续采集一段时间内的所述反射光信号。When the intensity of the reflected light signal is within a preset threshold range, the optical signal acquisition module 100 continuously collects the reflected light signal for a period of time.
所述反射光信号的强度在所述一段时间内稳定在预设变化范围内时，所述光信号采集模块100通过所述被测部位采集心率信号，所述光信号检测模块200检测所述心率信号的强度。When the intensity of the reflected light signal is stable within a preset variation range, the optical signal acquisition module 100 collects a heart rate signal through the measured portion, and the optical signal detection module 200 detects the heart rate. The strength of the signal.
可选的，所述光信号采集模块100向所述被测部位发射光，所述发射光的强度足以透射入所述被测部位内部。所述光信号采集模块100接收由所述被测部位内部反射的光信号。所述光信号采集模块100分析所述被测部位内部反射的光信号，得到心率信号。Optionally, the optical signal acquisition module 100 emits light to the measured portion, and the intensity of the emitted light is sufficient to be transmitted into the inside of the measured portion. The optical signal acquisition module 100 receives an optical signal reflected by the inside of the measured portion. The optical signal acquisition module 100 analyzes the optical signal reflected inside the measured portion to obtain a heart rate signal.
所述心率信号的强度在一段时间内小于预设阈值时，所述光信号检测模块200触发按键操作。When the intensity of the heart rate signal is less than a preset threshold for a period of time, the optical signal detection module 200 triggers a key operation.
可选的，所述光信号采集模块100连续采集1秒的心率信号，所述光信号检测模块200检测所述心率信号的强度。所述光信号检测模块200检测所述心率信号在1秒内的强度波动峰-峰值。在所述峰-峰值小于预设阈值时，所述光信号检测模块200触发所述按键操作。Optionally, the optical signal acquisition module 100 continuously collects a heart rate signal of 1 second, and the optical signal detection module 200 detects the strength of the heart rate signal. The optical signal detection module 200 detects an intensity fluctuation peak-to-peak value of the heart rate signal within 1 second. The optical signal detecting module 200 triggers the key operation when the peak-to-peak value is less than a preset threshold.
可选的，所述光信号检测模块200检测到所述峰-峰值大于预设阈值时，所 述光信号采集模块100继续采集1秒的心率信号。然后，所述光信号检测模块200继续检测所述心率信号在1秒内的强度波动峰-峰值。在所述峰-峰值小于预设阈值时，所述光信号检测模块200触发所述按键操作。Optionally, when the optical signal detecting module 200 detects that the peak-to-peak value is greater than a preset threshold, The optical signal acquisition module 100 continues to acquire a heart rate signal of 1 second. Then, the optical signal detecting module 200 continues to detect the intensity fluctuation peak-to-peak value of the heart rate signal within 1 second. The optical signal detecting module 200 triggers the key operation when the peak-to-peak value is less than a preset threshold.
搭载所述基于心率信号的按键操作触发装置的可穿戴设备开启后，所述光信号采集模块100采集被测部位反射的光信号，然后所述光信号检测模块200检测所述反射光信号的强度。如果所述反射光信号的强度位于预设阈值范围内时，则所述光信号检测模块200判断所述光信号采集模块100采集到的光信号为人体光信号。After the wearable device of the key operation triggering device based on the heart rate signal is turned on, the optical signal acquisition module 100 collects an optical signal reflected by the measured portion, and then the optical signal detecting module 200 detects the intensity of the reflected optical signal. . The optical signal detecting module 200 determines that the optical signal collected by the optical signal acquiring module 100 is a human body optical signal, if the intensity of the reflected light signal is within a preset threshold.
如果所述反射光信号为人体光信号，所述光信号采集模块100连续采集一段时间内的所述反射光信号，然后所述光信号检测模块200检测所述反射光信号的强度，判断所述反射光信号的稳定性。If the reflected light signal is a human body light signal, the light signal collecting module 100 continuously collects the reflected light signal for a period of time, and then the light signal detecting module 200 detects the intensity of the reflected light signal, and determines the The stability of the reflected light signal.
具体为，所述光信号采集模块100连续采集一个时间段内的光信号，所述光信号检测模块200判断所述反射光信号的强度在100毫秒内是否稳定在预设变化范围内。如果在100毫秒内，光信号的波动范围稳定在预设波动范围内(所述预设波动范围指的是，与入射光源的光强度相对应的正常波动范围内，入射光源的光强度不同时，与之对应的光信号的正常波动范围也不同)，则认为光信号的稳定性满足采集心率信号的要求。Specifically, the optical signal acquisition module 100 continuously collects optical signals in a time period, and the optical signal detection module 200 determines whether the intensity of the reflected optical signals is stable within a preset variation range within 100 milliseconds. If within 100 milliseconds, the fluctuation range of the optical signal is stabilized within a preset fluctuation range (the predetermined fluctuation range means that the light intensity of the incident light source is different within a normal fluctuation range corresponding to the light intensity of the incident light source) The normal fluctuation range of the corresponding optical signal is also different. It is considered that the stability of the optical signal satisfies the requirement of collecting the heart rate signal.
如果反射光信号的稳定性满足采集心率信号的要求，所述光信号采集模块100连续采集一个时间段内的心率信号，所述光信号检测模块200检测所述心率信号的强度，满足预设条件时，触发按键操作。If the stability of the reflected light signal meets the requirements of the heart rate signal, the optical signal acquisition module 100 continuously collects the heart rate signal for a period of time, and the optical signal detection module 200 detects the strength of the heart rate signal to meet the preset condition. When the button operation is triggered.
可选的，在本发明实施例中，搭载所述基于心率信号的按键操作触发装置的可穿戴设备，开启光源检测所述被测部位反射的光信号是否为人体光信号时，自动减小光源的发光功率，以节省能量，延长设备电量的使用时间。当本发明 实施例所述的反射光信号的稳定性符合预设时，所述设备增大光源的发光功率，以增强心率信号的特征。Optionally, in the embodiment of the present invention, the wearable device that is equipped with the heart rate signal-based button operation triggering device automatically reduces the light source when the light source detects whether the light signal reflected by the measured portion is a human body light signal. The luminous power is used to save energy and extend the life of the device. When the invention When the stability of the reflected light signal described in the embodiment conforms to a preset, the device increases the light-emitting power of the light source to enhance the characteristics of the heart rate signal.
在前述实施例公开内容的基础上，本发明实施例公开一种系统，所述系统包括基于心率信号的按键操作触发装置。Based on the disclosure of the foregoing embodiments, an embodiment of the present invention discloses a system, where the system includes a button operation triggering device based on a heart rate signal.
可选的，所述系统为一种包含有所述基于心率信号的按键操作触发装置的可穿戴设备。本领域的普通技术人员应当理解到，当所述系统为一种包含有所述基于心率信号的按键操作触发装置的可穿戴设备时，“系统”一词的含义指的是包含有多个硬件模块的可穿戴设备整体。例如，一种能够运行应用软件、具有通信功能的智能手环。Optionally, the system is a wearable device that includes the heart rate signal based button operation triggering device. One of ordinary skill in the art will appreciate that when the system is a wearable device that includes the heart rate signal based button operation triggering device, the meaning of the term "system" refers to the inclusion of multiple hardware. The module's wearable device as a whole. For example, a smart bracelet that can run application software and has communication capabilities.
可选的，所述系统包括：装设有所述基于心率信号的按键操作触发装置的可穿戴设备，和用于支持所述基于心率信号的按键操作触发装置实现其功能的终端。可选的，所述终端控制所述基于心率信号的按键操作触发装置的运行。例如，控制所述基于心率信号的按键操作触发装置运行时的灵敏度、控制所述基于心率信号的按键操作触发装置的开启与关闭等。Optionally, the system includes: a wearable device equipped with the heart rate signal-based key operation triggering device, and a terminal for supporting the heart rate signal-based key operation triggering device to perform its function. Optionally, the terminal controls operation of the heart rate signal based key operation triggering device. For example, controlling the sensitivity of the heart rate signal based key operation triggering device during operation, controlling the opening and closing of the heart rate signal based key operation triggering device, and the like.
所述终端包括但不限于智能手机、平板电脑、笔记本电脑、台式电脑等。The terminal includes, but is not limited to, a smart phone, a tablet computer, a notebook computer, a desktop computer, and the like.
所述基于心率信号的按键操作触发装置的结构可参见上述实施例中公开的内容，此处不再赘述。For the structure of the key operation triggering device based on the heart rate signal, refer to the disclosure in the above embodiments, and details are not described herein again.
本发明实施例所述基于心率信号的按键操作触发装置，通过光信号采集模块100采集被测部位反射的光信号和心率信号，通过光信号检测模块200检测所述反射光信号的强度，判断所述反射光信号是否为人体光信号。通过光信号检测模块200检测所述反射光信号的强度，判断所述反射光信号的稳定性是否满足采集心率信号的要求。通过光信号检测模块200检测所述心率信号的强度，满足预设条件时，触发按键操作。因而，本发明实施例所述的基于心率信号的 按键操作触发装置，可以有效地感应出按键触发操作，可以减少实现按键操作的硬件，有利于实现硬件的极简化和高度集成化。The button operation triggering device based on the heart rate signal according to the embodiment of the present invention collects the optical signal and the heart rate signal reflected by the measured portion through the optical signal collecting module 100, and detects the intensity of the reflected optical signal by the optical signal detecting module 200, and determines the Whether the reflected light signal is a human body light signal. The intensity of the reflected light signal is detected by the optical signal detecting module 200, and it is determined whether the stability of the reflected optical signal satisfies the requirement of acquiring a heart rate signal. The intensity of the heart rate signal is detected by the optical signal detecting module 200, and when the preset condition is met, the button operation is triggered. Therefore, the heart rate signal based on the embodiment of the present invention The button operation triggering device can effectively sense the button triggering operation, can reduce the hardware for realizing the button operation, and is beneficial to realize the extremely simplified and highly integrated hardware.
通过以上的实施例的描述，本领域的技术人员可以清楚地了解到各实施例可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件。基于这样的理解，上述技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品可以存储在计算机可读存储介质中，执行各个实施例或者实施例的某些部分所述的方法。Through the description of the above embodiments, those skilled in the art can clearly understand that the embodiments can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware. Based on such understanding, portions of the above technical solutions that contribute substantially or to the prior art may be embodied in the form of a software product that may be stored in a computer readable storage medium, executing various embodiments or implementations. The method described in some parts of the example.
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。 It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments are modified, or the equivalents of the technical features are replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (11)

  1. 一种基于心率信号的按键操作触发方法，其特征在于，所述方法包括：A key operation triggering method based on a heart rate signal, characterized in that the method comprises:
    采集被测部位反射的光信号并检测所述反射光信号的强度；Collecting an optical signal reflected by the measured portion and detecting the intensity of the reflected optical signal;
    所述反射光信号的强度位于预设阈值范围内时，连续采集一段时间内的所述反射光信号；When the intensity of the reflected light signal is within a preset threshold range, continuously collecting the reflected light signal for a period of time;
    所述反射光信号的强度在所述一段时间内稳定在预设变化范围内时，通过所述被测部位采集心率信号，并检测所述心率信号的强度；When the intensity of the reflected light signal is stable within a preset variation range, the heart rate signal is collected through the measured portion, and the intensity of the heart rate signal is detected;
    所述心率信号的强度在一段时间内小于预设阈值时，触发按键操作。When the strength of the heart rate signal is less than a preset threshold for a period of time, the button operation is triggered.
  2. 根据权利要求1所述的方法，其特征在于，所述通过所述被测部位采集心率信号，包括：The method according to claim 1, wherein the collecting the heart rate signal through the measured portion comprises:
    向所述被测部位发射光，所述发射光的强度足以透射入所述被测部位内部；Transmitting light to the measured portion, the intensity of the emitted light being sufficient to be transmitted into the interior of the measured portion;
    接收由所述被测部位内部反射的光信号；Receiving an optical signal reflected by the inside of the measured portion;
    分析所述被测部位内部反射的光信号，得到心率信号。The optical signal reflected inside the measured part is analyzed to obtain a heart rate signal.
  3. 根据权利要求1或2所述的方法，其特征在于，所述心率信号的强度在一段时间内小于预设阈值时，触发按键操作，包括：The method according to claim 1 or 2, wherein when the strength of the heart rate signal is less than a preset threshold for a period of time, the button operation is triggered, including:
    连续采集1秒的心率信号并检测所述心率信号的强度；Continuously acquiring a heart rate signal of 1 second and detecting the intensity of the heart rate signal;
    检测所述心率信号在1秒内的强度波动峰-峰值；Detecting a peak-to-peak intensity fluctuation of the heart rate signal within 1 second;
    在所述峰-峰值小于预设阈值时，触发所述按键操作。The button operation is triggered when the peak-to-peak value is less than a preset threshold.
  4. 根据权利要求3所述的方法，其特征在于，所述峰-峰值大于预设阈值时，继续采集1秒的心率信号。The method according to claim 3, wherein when the peak-to-peak value is greater than a preset threshold, the heart rate signal of 1 second is continuously acquired.
  5. 根据权利要求1-4中任一项所述的方法，其特征在于，所述反射光信号的强度在一段时间内稳定在预设变化范围内，包括：The method according to any one of claims 1 to 4, wherein the intensity of the reflected light signal is stable within a preset variation range for a period of time, including:
    所述反射光信号的强度在100毫秒内稳定在预设变化范围内。 The intensity of the reflected light signal is stable within a preset variation range within 100 milliseconds.
  6. 一种基于心率信号的按键操作触发装置，其特征在于，包括：A button operation triggering device based on a heart rate signal, comprising:
    光信号采集模块和光信号检测模块；Optical signal acquisition module and optical signal detection module;
    所述光信号采集模块用于采集被测部位反射的光信号和心率信号；The optical signal acquisition module is configured to collect an optical signal and a heart rate signal reflected by the measured portion;
    所述光信号检测模块用于检测所述反射光信号的强度和所述心率信号的强度；The optical signal detecting module is configured to detect an intensity of the reflected optical signal and an intensity of the heart rate signal;
    所述光信号采集模块采集被测部位反射的光信号，所述光信号检测模块检测所述反射光信号的强度；The optical signal acquisition module collects an optical signal reflected by the measured portion, and the optical signal detection module detects the intensity of the reflected optical signal;
    所述反射光信号的强度位于预设阈值范围内时，所述光信号采集模块连续采集一段时间内的所述反射光信号；When the intensity of the reflected light signal is within a preset threshold range, the optical signal acquisition module continuously collects the reflected light signal for a period of time;
    所述反射光信号的强度在所述一段时间内稳定在预设变化范围内时，所述光信号采集模块通过所述被测部位采集心率信号，所述光信号检测模块检测所述心率信号的强度；When the intensity of the reflected light signal is stable within a preset variation range, the optical signal acquisition module collects a heart rate signal through the measured portion, and the optical signal detection module detects the heart rate signal. strength;
    所述心率信号的强度在一段时间内小于预设阈值时，所述光信号检测模块触发按键操作。When the intensity of the heart rate signal is less than a preset threshold for a period of time, the optical signal detection module triggers a button operation.
  7. 根据权利要求6所述的装置，其特征在于，所述光信号采集模块通过所述被测部位采集心率信号，包括：The apparatus according to claim 6, wherein the optical signal acquisition module collects a heart rate signal through the measured portion, including:
    所述光信号采集模块向所述被测部位发射光，所述发射光的强度足以透射入所述被测部位内部；The light signal collecting module emits light to the measured portion, and the intensity of the emitted light is sufficient to be transmitted into the inside of the measured portion;
    所述光信号采集模块接收由所述被测部位内部反射的光信号；The optical signal acquisition module receives an optical signal reflected by the inside of the measured portion;
    所述光信号采集模块分析所述被测部位内部反射的光信号，得到心率信号。The optical signal acquisition module analyzes an optical signal reflected inside the measured portion to obtain a heart rate signal.
  8. 根据权利要求6或7所述的装置，其特征在于，所述心率信号的强度在一段时间内小于预设阈值时，所述光信号检测模块触发按键操作，包括： The apparatus according to claim 6 or 7, wherein when the intensity of the heart rate signal is less than a preset threshold for a period of time, the optical signal detecting module triggers a button operation, including:
    所述光信号采集模块连续采集1秒的心率信号，所述光信号检测模块检测所述心率信号的强度；The optical signal acquisition module continuously collects a heart rate signal of 1 second, and the optical signal detection module detects the strength of the heart rate signal;
    所述光信号检测模块检测所述心率信号在1秒内的强度波动峰-峰值；The optical signal detecting module detects an intensity fluctuation peak-to-peak value of the heart rate signal within 1 second;
    在所述峰-峰值小于预设阈值时，所述光信号检测模块触发所述按键操作。The optical signal detecting module triggers the key operation when the peak-to-peak value is less than a preset threshold.
  9. 根据权利要求8所述的装置，其特征在于，所述光信号检测模块检测到所述峰-峰值大于预设阈值时，所述光信号采集模块继续采集1秒的心率信号。The apparatus according to claim 8, wherein the optical signal acquisition module continues to acquire a heart rate signal of 1 second when the optical signal detecting module detects that the peak-to-peak value is greater than a preset threshold.
  10. 根据权利要求6-9任意一项所述的装置，所述反射光信号的强度在一段时间内稳定在预设变化范围内，包括：The apparatus according to any one of claims 6-9, wherein the intensity of the reflected light signal is stable within a preset variation range for a period of time, including:
    所述光信号检测模块检测所述反射光信号的强度在100毫秒内稳定在预设变化范围内。The optical signal detecting module detects that the intensity of the reflected light signal is stable within a preset variation range within 100 milliseconds.
  11. 一种系统，其特征在于，包括权利要求6-10中任意一项所述的基于心率信号的按键操作触发装置。 A system comprising a heart rate signal based key operation triggering device according to any one of claims 6-10.
PCT/CN2016/094112 2016-08-09 2016-08-09 Button operation method, apparatus, and system based on heart-rate signal WO2018027529A1 (en)

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