WO2018082211A1 - 一种智能穿戴设备 - Google Patents

一种智能穿戴设备 Download PDF

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Publication number
WO2018082211A1
WO2018082211A1 PCT/CN2017/070888 CN2017070888W WO2018082211A1 WO 2018082211 A1 WO2018082211 A1 WO 2018082211A1 CN 2017070888 W CN2017070888 W CN 2017070888W WO 2018082211 A1 WO2018082211 A1 WO 2018082211A1
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Prior art keywords
light emitting
group
emitting portions
portions
wearable device
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Application number
PCT/CN2017/070888
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English (en)
French (fr)
Inventor
佴晓东
席毅
沈奥
魏文雄
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to KR1020227030868A priority Critical patent/KR20220129095A/ko
Priority to KR1020217031274A priority patent/KR102442744B1/ko
Priority to BR112019008910A priority patent/BR112019008910A8/pt
Priority to CN201780003527.1A priority patent/CN108348176B/zh
Priority to ES17867213T priority patent/ES2965515T3/es
Priority to EP23191593.5A priority patent/EP4324383A3/en
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP17867213.5A priority patent/EP3530181B1/en
Priority to US16/346,743 priority patent/US11272846B2/en
Priority to KR1020197015194A priority patent/KR102309170B1/ko
Priority to JP2019523806A priority patent/JP6768948B2/ja
Publication of WO2018082211A1 publication Critical patent/WO2018082211A1/zh
Priority to US17/585,841 priority patent/US11998326B2/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
    • A61B5/02416—Detecting, measuring or recording pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
    • A61B5/02427—Details of sensor
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    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • A61B5/14552—Details of sensors specially adapted therefor
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    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A61B5/02416—Detecting, measuring or recording pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
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    • A61B5/14542—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring blood gases
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    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
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    • A61B5/316—Modalities, i.e. specific diagnostic methods
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    • A61B5/6802—Sensor mounted on worn items
    • A61B5/681—Wristwatch-type devices
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    • A61B5/683—Means for maintaining contact with the body
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
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    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/163—Wearable computers, e.g. on a belt
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
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    • A61B2560/02—Operational features
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    • A61B2560/0209—Operational features of power management adapted for power saving
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    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A61B5/02416—Detecting, measuring or recording pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
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    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A61B5/02438—Detecting, measuring or recording pulse rate or heart rate with portable devices, e.g. worn by the patient
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling

Definitions

  • the present invention relates to the field of wearable device technologies, and in particular, to a smart wearable device.
  • Heart rate detection is an important feature of current wearable devices. At present, heart rate detection mostly uses a light volume map (PPG, PhotoPlethysmoGraph) method and an electrocardiogram (ECG, Electrocardiogram) method.
  • PPG Light volume map
  • ECG Electrocardiogram
  • the ECG method is accurate, but it must be tested near the heart or at multiple points. Since the PPG method requires only a single point measurement, the measurement accuracy is lower than that of the PPG method.
  • PPG is divided into transmissive and reflective, and reflective is commonly used in wearable devices.
  • the basic principle is that a light emitting diode (LED) emits light. Hemoglobin reflects light in blood vessels inside human tissue. The reflected light is received by a photodiode (PD, Photo Diode). Most of the reflected light is direct current (DC), and a small part is the alternating current (AC) signal due to pulse pulsation. Because the content of hemoglobin and the like is related to the pulse of a person.
  • the PPG system calculates the blood oxygen saturation by detecting the light collected by the PD to determine the detection result. Specifically, the AC signal is used to detect key signals of blood oxygen or heart rate.
  • a scheme of a straight single PD is included. Specifically, the middle is PD and the two sides are LEDs.
  • This compact layout and high light utilization efficiency are the solutions adopted by most PPGs today. But this solution must place the PD in the center of the device and the distance between the LED and the PD is too close. Two limitations can cause conflicts and modulation depths for features such as device design wireless charging.
  • the embodiment of the invention provides a smart wearable device, which can improve the modulation depth of the detection result of the detecting device; and the center position of the housing is vacant, which is convenient for setting other devices.
  • a specific embodiment of the present invention provides a smart wearable device.
  • the smart wearable device includes a detecting device and a housing, and the detecting device specifically includes a set of measuring portions and a plurality of sets of light emitting portions.
  • the set of measuring portions and the plurality of sets of light emitting portions are polygonally disposed in the housing. Wherein each of the plurality of groups of light-emitting portions and the set of measurement portions respectively occupy one of a plurality of corners of the polygon, the center position of the polygon being located from each corner of the polygon The distance is fixed. Thereby, the distance between the set of measurement portions and the plurality of groups of illumination portions is increased, and the modulation depth of the device is increased.
  • the central location of the housing is also provided with a second device.
  • the second device By providing the second device at the center of the housing, the second device can be made to have a better use effect.
  • the smart wearable device further includes a wireless charging device including an electromagnetic coil and a magnet; the electromagnetic coil is disposed at an edge of the housing, and the magnet is the second device.
  • a wireless charging device is disposed on the smart wearable device, and a magnet of the wireless charging device is disposed at a center position of the casing, thereby improving charging efficiency of the wireless charging device.
  • the second device is an electrode that measures an electrocardiogram.
  • the measurement of the electrocardiogram is brought closer to the actual value by providing an electrode for measuring the electrocardiogram at a central position of the housing.
  • the set of light emitting portions includes at least one light emitting diode.
  • the set of measurement portions includes at least one photodiode.
  • the performance of the detecting device is improved by providing a plurality of light emitting diodes on a group of light emitting portions and/or providing a plurality of photodiodes in a set of measuring portions.
  • the polygon is a quadrilateral.
  • the quadrilateral is composed of a first set of measurement portions, a first set of illumination portions, a second group of illumination portions, and a third group of illumination portions. Wherein the first group of light emitting portions and the second group of light emitting portions are adjacent to the first group of measuring portions, the third group of light emitting portions are opposite to the first group of measuring portions, and the third group of light emitting portions are illuminated with the first group The portion is adjacent to the second group of light emitting portions.
  • the first group of light emitting portions and the second group of light emitting portions are respectively at least one green light diode, and the third group of light emitting portions are at least one red light/infrared light diode.
  • the third group of light emitting portions is at least one green light diode, and the first group of light emitting portions and the second group of light emitting portions are respectively at least one red light/infrared photodiode.
  • the first set of light emitting portions, the second set of light emitting portions, and the third group of light emitting portions are the same color light emitting diodes.
  • the smart wearable device turns on the first group of light emitting portions and the second group of light emitting portions according to the first control signal, and turns on the third group of light emitting portions according to the second control signal; wherein the first control signal is a signal for reducing system power consumption
  • the second control signal is a signal that increases the modulation depth.
  • the first group of light emitting portions, the second group of light emitting portions, and the third group of light emitting portions are red, infrared, and green light three-in-one light emitting diodes.
  • the smart wearable device turns on the first group of light emitting portions and the second group of light emitting portions according to the first control signal or the third control signal, and turns on the third group of light emitting portions according to the second control signal or the fourth control signal.
  • the first control signal is a blood oxygenation detection signal for reducing system power consumption
  • the second control signal is a blood oxygenation detection signal for increasing a modulation depth
  • the third control signal is a heart rate detection signal for reducing system power consumption
  • the four control signals are heart rate detection signals that increase the modulation depth.
  • the first set of measurement portions includes at least one photodiode.
  • the smart wearable device is a smart watch.
  • a specific embodiment of the present invention provides a smart wearable device.
  • a set of measuring portions and a plurality of sets of light emitting portions are polygonally disposed on the housing.
  • the distance between one measurement portion of the smart wearable device and the plurality of groups of illumination portions is increased, and the modulation depth of the measurement result of the measurement portion is improved.
  • the center position of the casing is vacant, which facilitates the installation of other equipment.
  • FIG. 1 is a schematic diagram of a usage environment of a smart wearable device according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of hardware of a smart watch according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a smart watch according to an embodiment of the present invention.
  • FIG. 5a is a schematic structural diagram of a first heart rate detection preferred detecting apparatus according to an embodiment of the present invention.
  • FIG. 5b is a schematic structural diagram of a detecting apparatus for heart rate detection according to an embodiment of the present invention.
  • FIG. 5c is a schematic structural diagram of a blood oxygen detecting and detecting device according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a blood oxygen and heart rate compatible detecting apparatus according to an embodiment of the present invention.
  • FIG. 5e is a schematic structural diagram of a multi-PD detecting apparatus according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a detecting apparatus according to an embodiment of the present invention.
  • FIG. 1 is a diagram of a usage environment of a smart wearable device according to an embodiment of the present invention.
  • the embodiment of the present invention relates to a smart wearable device 20 that can wirelessly communicate with a network side base station 10 or with a mobile phone 30 in a wireless manner.
  • the smart wearable device can send a wireless signal to the base station 10 through the wireless communication link 40 through the radio frequency circuit and the antenna, and request the base station 10 to perform the wireless network service to process the specific service requirement of the smart wearable device 20; for example, smart wear.
  • the device 20 can match the mobile phone 30 through its own Bluetooth.
  • the data communication with the mobile phone through the Bluetooth communication link 50 can be performed, and of course, data communication can be performed with the mobile phone through other wireless communication methods, such as radio frequency identification technology, short-range wireless. Communication technology, etc.
  • the smart wearable device 20 can also detect changes in the external environment through its own various sensors.
  • the smart wearable device can be a plurality of devices.
  • the smart wearable device can be any of a smart watch, a smart bracelet, or other smart wearable device.
  • a smart watch is taken as an example for specific description.
  • the smart watch may include a watch body 300.
  • the watch body 300 may include a touch panel 201 (also referred to as a touch screen), a display screen 202, a housing (the housing includes a front case (not shown in FIG. 2), and a bottom case ( 2 is not shown)), and processor 203, micro control unit (MCU) 204, power management system 213, memory 205, microphone (English: microphone, MIC) 206, Bluetooth (English: Blue Tooth, BT) 208, air pressure detecting device 209, heart rate detecting device 210, gravity acceleration sensor 211, power source 212, power management system 213, and the like.
  • MCU micro control unit
  • the watch body 300 may also include an antenna, a Wireless-Fidelity (WiFi) module, a Near Field Communication (NFC) module, and a Global Positioning System (English: Global). Positioning System, GPS) modules, speakers, accelerometers, gyroscopes, etc.
  • the watchband assembly 400 can also include a power source 212 (such as a battery) that powers the various components.
  • the power source 212 can be logically coupled to the processor 203 through the power management system 213 to implement functions such as managing charging, discharging, and power management through the power management system 213.
  • the touch screen 201 also referred to as a touch panel, can collect touch operations on the watch user (such as a user using a finger, a stylus, or the like, any suitable object or accessory on or near the touch panel). And the connected device is driven according to a preset program.
  • the display screen 202 can be used to display information entered by the user or information provided to the user as well as various menus of the watch. Further, the touch panel 201 can cover the display screen 202. When the touch panel 201 detects a touch operation on or near the touch panel 201, it transmits to the processor 203 to determine the type of the touch event, and then the processor 203 according to the touch event. The type provides a corresponding visual output on display screen 202.
  • the processor 203 is configured to perform system scheduling, control display screen, touch screen, support processing microphone 206, Bluetooth 208, and the like.
  • a microphone 206 also known as a microphone.
  • the microphone 206 can convert the collected sound signal into an electrical signal, which is received by the audio circuit and converted into audio data; the audio circuit can also convert the audio data into an electrical signal, which is transmitted to a speaker and converted into a sound signal output by the speaker.
  • the smart watch can exchange information with other electronic devices (such as mobile phones, tablets, etc.) through Bluetooth, and connect to the network through the above electronic devices, connect with the server, and handle voice recognition.
  • other electronic devices such as mobile phones, tablets, etc.
  • the micro control unit 204 is configured to control the sensor, perform operation on the sensor data, communicate with the processor 203, and the like.
  • the sensor may be a gas pressure detecting device 209, a heart rate detecting device 210, a gravity acceleration sensor 211, a light sensor, a motion sensor, or other sensors.
  • the memory 205 is used to store software programs and data, and the processor 203 executes various functional applications and data processing of the smart watch by running software programs and data stored in the memory 205.
  • FIG. 3 is a schematic structural diagram of a smart watch according to an embodiment of the present invention.
  • the detecting device performs measurement using the PPG method.
  • the detecting device comprises a watch case 301, so that after the user wears the smart watch including the detecting device, the detecting device detects the information, and then the detected information is processed to obtain the detecting structure.
  • the detecting device includes a set of measuring portions 304 and a plurality of sets of light emitting portions 305, 306, 307.
  • the set of measuring portions and the plurality of sets of light emitting portions are polygonally disposed on the housing, and a center of the polygon coincides with a center of the housing.
  • the central position of the polygon is a set distance from each corner of the polygon such that the center of the housing is vacant and any other second device can be placed centrally.
  • the plurality of sets of light emitting portions 305, 306, 307 are for emitting light.
  • the light illuminates the wearer's skin and reflects light through hemoglobin in blood vessels inside the body tissue.
  • the set of measuring portions 304 is for receiving light reflected by a human body.
  • the measuring portion 304 also includes processing the reflected light to obtain a result of the detection.
  • the content of hemoglobin or the like is related to the pulse of a person.
  • the measuring portion 304 calculates by using the light volume map (PPG, PhotoPlethysmoGraph) method for the collected light.
  • PPG Light Volume map
  • HR Heart Rate
  • the measuring portion 304 generates a direct current signal and an alternating current signal according to the reflected light.
  • DC signal components are complex and usually include reflected light from ambient light, skin, tissue, and the like.
  • the alternating signal is reflected light of hemoglobin. communicate with/ The ratio of DC is called the modulation depth. As the modulation depth increases, a larger AC signal can be obtained, making the detection result more accurate.
  • the plurality of groups of light emitting portions including 305, 306, and 307 are only an example of the present invention.
  • the plurality of light emitting portions may be any group.
  • the set of measuring portions 304 and the plurality of sets of light emitting portions are polygonally arranged, and the shape of the polygon is determined by the number of the plurality of sets of light emitting portions. For example, when a set of measurement portions and three sets of light-emitting portions are included, the set of measurement portions and the three groups of light-emitting portions form a quadrangle on the watch case.
  • the structure of the detecting device is as shown in FIG.
  • the measuring portion 304 includes a set of photodiodes (PDs).
  • the light emitting portion includes three sets of light emitting diodes (LEDs).
  • the three sets of light emitting diodes specifically include a set of green LEDs and two sets of red and infrared LEDs.
  • the measuring portion 304 and the light emitting portions 305, 306, 307 are disposed at four corners such that the distance between the measuring portion and the light emitting portion is maximized. Thereby increasing the depth of modulation, obtaining a larger AC signal, and making the detection result more accurate.
  • the set of measurement parts includes one PD or a group of light-emitting parts including one light-emitting diode is only an example of the present invention. Any number of PDs may be included in the set of measurement sections, and a set of illumination sections may include any number of LEDs.
  • FIG. 4 is a graph showing modulation depths of different wavelengths and distances according to an embodiment of the present invention.
  • the modulation depth of light including four different wavelengths is different when the distance between the LED and the PD is different. It can be seen from FIG. 4 that in different wavelengths of light, the modulation depth decreases as the wavelength increases. In the same wavelength of light, as the distance between the LED and the PD increases, the modulation depth increases.
  • the smart watch further includes a wireless charging device to enable the watch to be charged by the wireless charging device.
  • the wireless charging device includes a coil 302 and a magnet 303. Since the charging efficiency of the wireless charging device is determined by the coil 303, the larger the coil area, the higher the charging efficiency. Therefore, in order to enlarge the area of the coil 302, the coil 302 is disposed outside the case 301 and does not overlap with the light emitting portion or the measuring portion.
  • the magnet 303 is used for positioning, and the wireless charging device is positioned with the watch by the magnet 303.
  • the magnet 303 has a large influence on the efficiency of the wireless charging device, and the farther the magnet 303 is from the coil 302, the less the effect on the efficiency of wireless charging. Therefore, the magnet 303 is often placed at the center of the watch to improve charging efficiency.
  • the detecting device further includes an electrode that detects the electrocardiogram.
  • the motor that detects the electrocardiogram is disposed at a center position of the housing. Since the center position of the casing is the closest to the skin, thereby improving the conductivity of the electrocardiogram electrode, the detection result of the electrocardiogram is more accurate.
  • the intermediate position of the watch case can be used to set a magnet or electrocardiogram (ECG) electrode or the like of the wireless charging device.
  • ECG electrocardiogram
  • any second detecting device may be disposed at an intermediate position of the case. Since the intermediate position is the best position for contact with the skin, in the detection scheme for setting the PD, the intermediate position is reserved, so that any other second detecting device can obtain the best installation position, and the first position is improved. Second, the accuracy of the detection result of the detection device.
  • the PD, R/IR, and G specific setting structures shown in FIG. 3 are only one implementation manner of the specific embodiment of the present invention.
  • a plurality of different arrangements may also be adopted according to different detection schemes.
  • the PD when detecting blood oxygen, the PD is detected based on the reflected light by turning on the red/infrared (R/IR) LED.
  • the PD When detecting the heart rate, the PD is turned on according to the turned-over light by turning on the green (G) LED. From this, it can be determined that Fig. 3 is a preferred embodiment of blood oxygenation detection.
  • FIG. 5a is a schematic structural diagram of a first heart rate detection preferred detecting apparatus according to an embodiment of the present invention. As shown in FIG. 5a, a set of PDs, two sets of red/infrared LEDs, and a set of green LEDs are included. The first group of light emitting portions and the second group of light emitting portions are red/infrared light LEDs, and the third group of light emitting portions are green light LEDs.
  • the first group of light emitting portions and the second group of light emitting portions are adjacent to the first group of PDs, the third group of light emitting portions are opposite to the first group of PDs, and the third group of light emitting portions are opposite to the first group of light emitting portions and the second group
  • the group of light emitting portions are adjacent.
  • the smart watch receives a first control command, and the two sets of red/infrared LEDs are turned on by the first control command.
  • the PD detects light reflected from the skin to perform blood oxygenation detection.
  • the smart watch receives a second control command, and a set of green LEDs is turned on by the second control command. Since the distance between the green LED and the PD is far, the modulation depth is increased. Make the results of heart rate detection more accurate.
  • the detection device of the smart watch may also be a priority scheme for blood oxygenation detection.
  • the detection device includes a set of PDs, two sets of green LEDs, and a set of red/infrared LEDs.
  • the first group of light emitting portions and the second group of light emitting portions are green LEDs, and the third group of light emitting portions are red/infrared light LEDs.
  • the first group of light emitting portions and the second group of light emitting portions are adjacent to the first group of PDs, the third group of light emitting portions are opposite to the first group of PDs, and the third group of light emitting portions are opposite to the first group of light emitting portions and the second group
  • the group of light emitting portions are adjacent.
  • the smart watch receives a first control command, and the two sets of green LEDs are turned on by the first control instruction.
  • the PD detects light reflected from the skin to perform heart rate detection.
  • the smart watch receives a second control command, and a set of red/infrared LEDs is turned on by the second control command. Since the distance between the red/infrared LED and the PD is far, the modulation depth is increased. Make the results of blood oxygenation more accurate.
  • FIG. 5b is a schematic structural diagram of a detecting apparatus for heart rate detection according to an embodiment of the present invention.
  • a set of PDs and three sets of light emitting portions are included.
  • the three sets of light emitting portions are green LEDs.
  • the first group of light emitting portions and the second group of light emitting portions are adjacent to a group of PDs, the third group of light emitting portions are opposite to the first group of PDs, and the third group of light emitting portions are associated with the first group of light emitting portions and the second group
  • the illuminating portions are adjacent.
  • These three sets of green LEDs can be turned on at different times. If you need to get a larger modulation depth, you need to turn on the green LED that is farthest from the PD. If you need to reduce system power consumption, you can turn on two green LEDs that are closer to the PD.
  • the smart watch turns on the first group of light emitting portions and the second group of light emitting portions according to the first control signal, and turns on the third group of light emitting portions according to the second control signal.
  • the first control signal is a signal for reducing system power consumption
  • the second control signal is a signal for increasing modulation depth.
  • FIG. 5c is a schematic structural diagram of a device for detecting blood oxygenation according to an embodiment of the present invention.
  • a set of PDs and three sets of light emitting portions are included, and the three sets of light emitting portions are red/infrared LEDs.
  • the first group of light emitting portions and the second group of light emitting portions are adjacent to a group of PDs, the third group of light emitting portions are opposite to the first group of PDs, and the third group of light emitting portions are associated with the first group of light emitting portions and the second group
  • the illuminating portions are adjacent.
  • These three red/infrared LEDs can be turned on at different times.
  • the smart watch turns on the first group of light emitting portions and the second group of light emitting portions according to the first control signal, and turns on the third group of light emitting portions according to the second control signal.
  • the first control signal is to reduce system power consumption
  • the second control signal is a signal that increases the modulation depth.
  • FIG. 5 is a schematic structural diagram of a blood oxygen and heart rate compatible detecting apparatus according to an embodiment of the present invention. As shown in Figure 5d, a set of PDs and three sets of light emitting portions are included. The three groups of light-emitting portions are three sets of green/red/infrared light three-in-one LEDs. In the solution, the switch of the three-in-one LED can be adjusted according to the content described in 5b or 5c.
  • FIG. 5e is a schematic structural diagram of a multi-PD detecting apparatus according to an embodiment of the present invention.
  • a set of PDs and three sets of light emitting portions are included.
  • the set of PDs includes two PDs, the two PDs being arranged in close proximity. It should be noted that two PDs are only one specific scheme of multiple PDs, and more PDs can also be used.
  • the three LEDs include two red/infrared LEDs and one green LED. Of course, the three LEDs can be as described in any of FIG. 3, FIG. 5a, FIG. 5b, FIG. 5c or FIG. 5d.
  • the PD turn-on time is lowered, thereby increasing the time of device detection.
  • FIG. 6 is a schematic structural diagram of a detecting apparatus according to an embodiment of the present invention. As shown in FIG. 6, it includes an LED, a PD, an analog front end (AFE, an Analog Front End), and a microcontroller (MCU, Micro Control Unit). Among them, the LEDs shown are used to emit spectra of different frequencies, reflected from the human body, in order to generate the desired optical signal.
  • the PD is configured to receive a reflected optical signal and convert the optical signal into an electrical signal.
  • the analog front end is used to control LED and PD operation, and accepts an electrical signal returned by the PD to perform preliminary processing on the electrical signal.
  • the AFE may be a single device or may be composed of multiple devices. After the initial processing of the electrical signal, the AFE also returns the result to the microcontroller, and the microcontroller outputs the detected result according to the returned result.
  • FIG. 7 is a schematic structural diagram of an AFE according to an embodiment of the present invention. As shown in FIG. 7, it includes an I/O module, an LED driving circuit, A/D conversion, filtering, amplification, and DC adjustment.
  • the I/O module is connected to the MCU by receiving a signal sent by the MCU.
  • the signal sent by the MCU includes a signal for controlling an LED switch, and the I/O module transmits the signal to the LED driving circuit.
  • the LED emits light of different wavelengths. Green light is generally used to test heart rate, and red light infrared is generally used to test blood oxygen.
  • the LED drive circuit drives an LED connected to the LED drive circuit in accordance with the signal.
  • the PD is connected to the DC regulation and sends the obtained signal to the DC adjustment.
  • the light from the LED is refracted or transmitted or reflected by the human skin, and part of the light enters the PD.
  • the PD performs optical/electrical conversion on the received light to obtain an electrical signal.
  • the PD can be always in the working state, and only the DC signal is output when the LED is not working. When the LED is working, the DC signal and the AC signal are output.
  • the AFE accepts the AC signal (analog signal) sent by the PD, and performs DC adjustment, amplification, filtering, A/D conversion, and the like.
  • the obtained analog signal is converted into a digital signal, and the digital signal is transmitted to an MCU or a DSP or the like. Inside the MCU, for the obtained digital signal, an algorithm is applied for parsing to obtain values such as heart rate and blood oxygen.

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Abstract

本发明实施例公开了一种智能穿戴设备。所述智能穿戴设备包括检测装置和壳体，所述检测装置具体包括一组测量部分和多组发光部分；所述一组测量部分和多组发光部分呈多边形嵌设于壳体上；其中，所述多组发光部分中的每一组和所述一组测量部分分别占据所述多边形的多个角中的一个角，所述多边形的中心位置距离所述多边形的每个角有设定的距离。本发明具体实施例提供了一种智能穿戴设备。通过将一组测量部分和多组发光部分呈多边形设置在壳体上。使所述智能穿戴设备的一种测量部分与多组发光部分的距离增大，提高测量部分检测结果的调制深度。并且，将所述壳体的中心位置空置，便于设置其他设备。

Description

一种智能穿戴设备 技术领域
本案涉及可穿戴设备技术领域，尤其涉及一种智能穿戴设备。
背景技术
心率检测是当前可穿戴设备的一个重要功能。目前，心率检测大多采用光容积图(PPG，PhotoPlethysmoGraph)法和心电图(ECG，Electrocardiogram)法。ECG法测算准确，但是由于必须在心脏附近测试或多个点测试。PPG法由于只需要单点测量，因此测量准确度相对PPG法较低。
现有技术中，智能可穿戴设备越来越多的使用在日常生活中。其功能也越来越丰富，通常包括心率检测等项目。由于PPG法的便利性，目前手表、手环、夹指式测量仪的普遍使用PPG法的测量方案。
PPG分为透射式和反射式，反射式常用于可穿戴设备。其基本原理是，发光二极管(LED，Light Emitting Diode)发出光线。在人体组织内部的的血管中，血红蛋白对于光线进行反射。反射的光线由光敏二极管(PD，Photo Diode)接收。反射的光线中，大部分是直流(DC)，小部分是由于脉搏勃动而产生的交流(AC)信号。因为血红蛋白等的含量和人的脉搏是相关的。PPG系统就是靠检测PD采集的光线计算血氧饱和度，从而确定检测结果。具体的，交流信号来检测血氧或心率的关键信号。
在一种通常的智能手表中，包括直线单PD的方案。具体的，中间是PD,两边是LED。这种布局紧凑，光线利用效率高，是现在大多数PPG采用的方案。但是这个方案必须将PD放置在设备的中央，并且LED和PD的距离太近。两个限制会对于设备设计无线充电等功能产生冲突和调制深度不够。
发明内容
本发明实施例提供了一种智能穿戴设备，能够提高检测装置检测结果的调制深度；并且，将所述壳体的中心位置空置，便于设置其他设备。
一方面，本发明具体实施例提供了一种智能穿戴设备。所述智能穿戴设备包括检测装置和壳体，所述检测装置具体包括一组测量部分和多组发光部分。所述一组测量部分和多组发光部分呈多边形设置在壳体。其中，所述多组发光部分中的每一组和所述一组测量部分分别占据所述多边形的多个角中的一个角，所述多边形的中心位置距离所述多边形的每个角有设定的距离。从而使所述一组测量部分与多组发光部分的距离增大，提高设备的调制深度。
在一个可能的设计中，所述壳体的中心位置还设置了第二设备。通过在所述壳体的中心位置设置第二设备，从而使第二设备能够得到更优的使用效果。
在一个可能的设计中，所述智能穿戴设备还包括无线充电设备，所述无线充电设备包括电磁线圈和磁铁；所述电磁线圈设置在壳体的边缘，所述磁铁为所述第二设备。通过在 所述智能穿戴设备上设置无线充电设备，将所述无线充电设备的磁铁设置在壳体的中心位置，从而使所述无线充电设备的充电效率提高。
在一个可能的设计中，所述第二设备为测量心电图的电极。通过在所述壳体的中心位置设置测量心电图的电极，从而使所述心电图的测量结果更加趋近于实际值。
在一个可能的设计中，所述一组发光部分包括至少一个发光二极管。所述一组测量部分包括至少一个光敏二极管。通过在一组发光部分上设置多个发光二极管和/或在一组测量部分设置多个光敏二极管，从而提高检测装置的效能。
在一个可能的设计中，所述多边形为四边形。所述四边形由第一组测量部分、第一组发光部分、第二组发光部分和第三组发光部分组成。其中，所述第一组发光部分和第二组发光部分与第一组测量部分相邻，所述第三组发光部分与第一组测量部分相对、并且第三组发光部分与第一组发光部分和第二组发光部分相邻。
在一个可能的设计中，所述第一组发光部分和第二组发光部分分别为至少一个绿光二极管，所述第三组发光部分为至少一个红光/红外光二极管。
在一个可能的设计中，所述第三组发光部分为至少一个绿光二极管，所述第一组发光部分和第二组发光部分分别为至少一个红光/红外光二极管。
在一个可能的设计中，所述第一组发光部分、第二组发光部分和第三组发光部分为相同颜色发光二极管。所述智能穿戴设备根据第一控制信号开启第一组发光部分和第二组发光部分，根据第二控制信号开启第三组发光部分；其中，所述第一控制信号为减少系统功耗的信号，第二控制信号为增加调制深度的信号。
在一个可能的设计中，所述第一组发光部分、第二组发光部分和第三组发光部分为红光、红外光和绿光三合一发光二极管。所述智能穿戴设备根据第一控制信号或第三控制信号开启第一组发光部分和第二组发光部分，根据第二控制信号或第四控制信号开启第三组发光部分。其中，所述第一控制信号为减少系统功耗的血氧检测信号，第二控制信号为增加调制深度的血氧检测信号，所述第三控制信号为减少系统功耗的心率检测信号，第四控制信号为增加调制深度的心率检测信号。
在一个可能的设计中，所述第一组测量部分包括至少一个光敏二极管。
在一个可能的设计中，所述智能穿戴设备为智能手表。
本发明具体实施例提供了一种智能穿戴设备。通过将一组测量部分和多组发光部分呈多边形设置在壳体上。使所述智能穿戴设备的一种测量部分与多组发光部分的距离增大，提高测量部分检测结果的调制深度。并且，将所述壳体的中心位置空置，便于设置其他设备。
附图说明
图1为本发明具体实施例提供的一种智能穿戴设备的使用环境图；
图2为本发明实施例提供的一种智能手表的硬件结构示意图；
图3为本发明实施例提供的一种智能手表结构示意图；
图4为本发明具体实施例提供的一种不同波长和距离的调制深度曲线图；
图5a为本发明具体实施例提供的第一种心率检测优选的检测装置结构示意图；
图5b为本发明具体实施例提供的一种用于心率检测的检测装置结构示意图；
图5c为本发明具体实施例提供的一种用于血氧检测检测装置的结构示意图；
图5d为本发明具体实施例提供的一种血氧和心率兼容的检测装置结构示意图；
图5e为本发明具体实施例提供的一种多PD的检测装置结构示意图；
图6为本发明具体实施例提供的一种检测装置结构示意图；
图7为本发明具体实施例提供的一种AFE的具体结构示意图。
具体实施方式
下面通过附图和实施例，对本发明实施例的技术方案做进一步的详细描述。
可以理解的是，在整个说明书中对于技术特征、有益效果或类似语句的描述并不暗示在任意的单个实施例中可以实现所有的技术特征和有益效果。相反，可以理解的是对于技术特征或有益效果的语句意味着在至少一个实施例中包括特定的技术特征或者有益效果。因此，在本说明书中对于技术特征、有益效果或类似语句的描述并不一定是指相同的实施例。而且，还可以任何适当的方式组合实施例中所描述的技术特征或有益效果。本领域技术人员可以理解，无需特定实施例的一个或多个特定的技术特征或有益效果即可实现该实施例。
图1为本发明具体实施例提供的一种智能穿戴设备的使用环境图。如图1所示，本发明实施例涉及一种智能穿戴设备20，该智能穿戴设备20可以通过无线方式与网络侧基站10，或者与一个手机30进行无线通信。例如，该智能穿戴设备可以通过自身的射频电路和天线，通过无线通信链路40发送无线信号给基站10，请求基站10进行无线网络业务处理该智能穿戴设备20具体业务需求；又例如，智能穿戴设备20可以通过自身的蓝牙与手机30进行匹配，匹配成功后与手机通过蓝牙通信链路50进行数据通信，当然也可以通过其他无线通信方式与手机进行数据通信，比如射频识别技术，近距离无线通信技术等。另外，该智能穿戴设备20也可以通过自身的各种传感器检测外界环境的变化。
在本发明的具体实施例中，所述智能穿戴设备可以是多种设备。在一个例子中，所述智能穿戴设备可以是智能手表、智能手环或其他智能穿戴设备中的任意一种。为了描述的方便，本发明具体实施例中，仅以智能手表为例进行具体的说明。
图2为本发明实施例提供的一种智能手表的硬件结构示意图。该智能手表可以包括：手表主体300。
示例性的，如图2所示，手表主体300可以包括触控面板201(又称触摸屏)、显示屏202、壳体(所述壳体包括前壳(图2未示出)和底壳(图2未示出))，以及处理器203、微控制单元(英文：micro control unit，MCU)204、电源管理系统213、存储器205、麦克风(英文：microphone，MIC)206、蓝牙(英文：Blue Tooth，BT)208、气压检测装置209、心率检测装置210、重力加速度传感器211、电源212、电源管理系统213等。
尽管未示出，手表主体300还可以包括天线、无线保真(英文：Wireless-Fidelity，WiFi)模块、近距离无线通信技术(英文：Near Field Communication，NFC)模块、全球定位系统(英文：Global Positioning System，GPS)模块、扬声器、加速计、陀螺仪等。表带组件400还可以包括给各个组件供电的电源212(比如电池)。优选的，电源212可以通过电源管理系统213与处理器203逻辑相连，从而通过电源管理系统213实现管理充电、放电、以及功耗管理等功能。
下面分别对智能手表的各功能组件进行介绍：
触摸屏201，也称为触控面板，可收集手表用户在其上的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板上或在触控面板附近的操作)，并根据预先设定的程式驱动响应的连接装置。
显示屏202可用于显示由用户输入的信息或提供给用户的信息以及手表的各种菜单。进一步的，触控面板201可覆盖显示屏202，当触控面板201检测到在其上或附近的触摸操作后，传送给处理器203以确定触摸事件的类型，随后处理器203根据触摸事件的类型在显示屏202上提供相应的视觉输出。
处理器203用于进行系统调度，控制显示屏、触摸屏，支持处理麦克风206，蓝牙208等。
麦克风206，也称为传声器。麦克风206可以将收集的声音信号转换为电信号，由音频电路接收后转换为音频数据；音频电路也可以将音频数据转换为电信号，传输到扬声器，由扬声器转换为声音信号输出。
蓝牙208，智能手表通过蓝牙可以与其他电子设备(如手机、平板电脑等)交互信息，并通过上述电子设备连接网络，与服务器连接，处理语音识别等。
微控制单元204，用于控制传感器，对传感器数据进行运算，与处理器203通信等。其中，传感器可以是气压检测装置209、心率检测装置210、重力加速度传感器211、光传感器、运动传感器或其他传感器。
存储器205用于存储软件程序以及数据，处理器203通过运行存储在存储器205的软件程序以及数据，执行智能手表的各种功能应用以及数据处理。
需要说明的是，上述智能手表的硬件功能组件可以根据用户需要进行更改，可以理解的是，上文所介绍的具体实施例仅仅是本发明的一种具体实施方式，其他可以实现本发明方案的方式同样是本发明所要保护的范围，在此不做赘述。
图3为本发明实施例提供的一种智能手表结构示意图。如图3所示，所述检测装置采用PPG法进行测量。所述检测装置包括设置在表壳301，从而使用户在佩戴包括所述检测装置的智能手表后，通过所述检测装置检测信息，再将检测的信息处理后获得检测结构。
具体的，所述检测装置包括一组测量部分304和多组发光部分305、306、307。所述一组测量部分和多组发光部分呈多边形的设置在所述壳体上，并且所述多边形的中心与所述壳体的中心重合。该多边形的中心位置距离该多边形的每个角有设定的距离，从而达到将所述壳体的中心空置，并且可以在中心设置其它的任意第二设备。
所述多组发光部分305、306、307用于发出光线。所述光线照射到佩戴者的皮肤，在人体组织内部的的血管中，通过血红蛋白对于光线进行反射。所述一组测量部分304用于接收人体反射的光线。所述测量部分304还包括对反射的光线进行处理，从而获得检测的结果。
具体的，血红蛋白等的含量和人的脉搏是相关的。测量部分304通过对采集的光线利用光容积图(PPG，PhotoPlethysmoGraph)法进行计算。从而得到血氧饱和度(SP02，Peripheral Oxygen Saturation Pulse Oxygen Saturation)和心率(HR，Heart Rate)的检测结果。
其中，测量部分304根据反射的光线产生直流信号和交流信号。直流信号成分复杂，通常包括环境光、皮肤、组织等的反射光线。所述交流信号是血红蛋白的反射光。交流/ 直流的比值，称之为调制深度。调制深度的增加，可以得到更大的交流信号，从而使检测的结果更加准确。
需要说明的是，所述多组发光部分包括305、306、307仅为本发明的一种举例。在本发明的具体实施例中，所述多个发光部分可以是任意组。所述一组测量部分304和多组发光部分呈多边形设置，所述多边形的形状由所述多组发光部分的数量来确定。例如，包括一组测量部分和三组发光部分时，所述一组测量部分和三组发光部分在表壳上形成四边形。
在一个例子中，所述检测装置的结构如图3所示。所述测量部分304包括一组光敏二极管(PD，Photo Diode)。所述发光部分包括三组发光二极管(LED，Light Emitting Diode)。三组发光二极管具体包括一组绿光LED和两组红光和红外光LED。所述测量部分304和发光部分305、306、307四角设置，从而使测量部分和发光部分之间的距离尽量增大。从而增加调制的深度，得到更大的交流信号，使检测的结果更加准确。
需要说明的是，所述一组测量部分包括一个PD或一组发光部分包括一个发光二极管仅为本发明的一种举例。所述一组测量部分中可以包括任意数量的PD，一组发光部分可以包括任意数量的LED。
所述图4为本发明具体实施例提供的一种不同波长和距离的调制深度曲线图。如图4所示，包括四种不同波长的光线在LED和PD距离不同时的调制深度。通过图4可以发现，在不同波长的光线中，随着波长的增加，调制深度减小。在相同波长的光线中，随着LED和PD距离的增加，调制深度增加。
在本发明具体实施例图3所述的例子中，通过将所述检测装置和发光部分四角设置，从而保证了检测装置和发光部分之间距离的最大。由此使检测结果越加趋近于实际。
在本发明的具体实施例的一种方案中，所述智能手表中还包括无线充电装置，以使手表能够通过无线充电设备进行充电。所述无线充电装置包括线圈302和磁铁303。由于无线充电装置的充电效率由所述线圈303决定，所述线圈面积越大，充电效率越高。因此，为了扩大线圈302的面积，所述线圈302设置在表壳301的外侧并且不与所述发光部分或测量部分相互重叠。所述磁铁303用于定位，通过所述磁铁303，使无线充电设备与手表定位。但是，磁铁303对于无线充电设备的效率产生很大影响，磁铁303距离线圈302越远，对无线充电的效率影响越小。因此，磁铁303经常放置在手表的中心位置，以提高充电效率。在本发明具体实施例的另一种方案中，所述检测装置还包括检测心电图的电极。所述检测心电图的电机设置在壳体的中心位置。由于所述壳体的中心位置是与皮肤贴合最为紧密，从而提高心电图电极的导电率，使所述心电图的检测结果更加的准确。
由于检测装置和发光部分之间的四角设置，使所述表壳的中间位置能够用于设置无线充电设备的磁铁或心电图(ECG，Electrocardiogram)电极等。当所述表壳的中间位置设置磁铁时，可以提高设备无线充电的充电效率。当所述表壳的中间位置设置ECG电极时，能够使所述ECG电极具有更好的导电率。
需要说明的是，所述表壳的中间位置可以设置任意的第二检测设备。由于中间位置是和皮肤接触最好的位置，在设置PD的检测方案中，通过将所述中间位置进行预留，从而使其它任意第二检测设备可以得到最好的安装位置，提高所述第二检测设备检测结果的精度。
需要说明的是，图3所示的PD、R/IR、G具体设置结构仅为本发明具体实施例的一种实现方式。在本发明的具体实施例中，还可以根据检测方案的不同采用多种不同的排布方式。其中，对血氧进行检测时，通过开启红光/红外(R/IR)LED，使PD根据反射的光线进行检测。对心率进行检测时，通过开启绿光(G)LED，使PD根据翻身的光线进行检测。由此，可以确定，图3为血氧检测的优选方案。
图5a为本发明具体实施例提供的第一种心率检测优选的检测装置结构示意图，如图5a所示，包括一组PD、两组红光/红外LED和一组绿光LED。第一组发光部分和第二组发光部分为红光/红外光LED，所述第三组发光部分为绿光LED。所述第一组发光部分和第二组发光部分与第一组PD相邻，所述第三组发光部分与第一组PD相对、并且第三组发光部分与第一组发光部分和第二组发光部分相邻。所述智能手表接收第一控制指令，通过所述第一控制指令使两组红光/红外LED开启。所述PD检测皮肤反射的光线，从而进行血氧检测。所述智能手表接收第二控制指令，通过所述第二控制指令使一组绿光LED开启。由于所述绿光LED和PD的距离较远，从而增加调制深度。使心率检测的结果更加的准确。
在本发明的具体实施例中，所述智能手表的检测装置还可以是对血氧检测的优先方案。所述检测装置包括一组PD、两组绿光LED和一组红光/红外LED。第一组发光部分和第二组发光部分为绿光LED，所述第三组发光部分为红光/红外光LED。所述第一组发光部分和第二组发光部分与第一组PD相邻，所述第三组发光部分与第一组PD相对、并且第三组发光部分与第一组发光部分和第二组发光部分相邻。
在上述的方案中，所述智能手表接收第一控制指令，通过所述第一控制指令使两组绿光LED开启。所述PD检测皮肤反射的光线，从而进行心率检测。所述智能手表接收第二控制指令，通过所述第二控制指令使一组红光/红外LED开启。由于所述红光/红外LED和PD的距离较远，从而增加调制深度。使血氧检测的结果更加的准确。
图5b为本发明具体实施例提供的一种用于心率检测的检测装置结构示意图。如图5b所示，包括一组PD和三组发光部分。所述三组发光部位为绿光LED。所述第一组发光部分和第二组发光部分与一组PD相邻，所述第三组发光部分与第一组PD相对、并且第三组发光部分与第一组发光部分和第二组发光部分相邻。此三组绿光LED可以在不同时刻打开。如果需要获得更大调制深度，需要打开和PD距离最远的绿光LED。如果需要减少系统功耗，可以打开和PD较近的两个绿光LED。
在一个例子中，所述智能手表根据第一控制信号开启第一组发光部分和第二组发光部分，根据第二控制信号开启第三组发光部分。其中，所述第一控制信号为减少系统功耗的信号，第二控制信号为增加调制深度的信号。
图5c为本发明具体实施例提供的一种用于血氧检测检测装置的结构示意图。如图5c所示，包括一组PD和三组发光部分，所述三组发光部分为红光/红外LED。所述第一组发光部分和第二组发光部分与一组PD相邻，所述第三组发光部分与第一组PD相对、并且第三组发光部分与第一组发光部分和第二组发光部分相邻。此三个红光/红外光LED可以在不同时刻打开。如果需要获得更大调制深度，需要打开和PD距离最远的红光/红外LED。如果需要减少系统功耗，可以打开和PD较近的两个红光/红外LED。
在一个例子中，所述智能手表根据第一控制信号开启第一组发光部分和第二组发光部分，根据第二控制信号开启第三组发光部分。其中，所述第一控制信号为减少系统功耗的 信号，第二控制信号为增加调制深度的信号。
图5d为本发明具体实施例提供的一种血氧和心率兼容的检测装置结构示意图。如图5d所示，包括一组PD和三组发光部分。所述三组发光部分为三组绿光/红光/红外光三合一的LED。在所述方案中，可以根据5b或5c所述的内容调节三合一LED的开关。
图5e为本发明具体实施例提供的一种多PD的检测装置结构示意图。如图5e所示，包括一组PD和三组发光部分。所述一组PD包括两个PD，所述两个PD相近的设置。需要说明的是，两个PD只是多PD的一种具体方案，也可以采用更多的PD。所述三个LED中包括两个红光/红外LED和一个绿光LED。当然，所述三个LED可以如图3、图5a、图5b、图5c或图5d任一项的描述。通过通过在一组PD中设置多个PD，降低PD开启时间，从而提高了设备检测的时间。
图6为本发明具体实施例提供的一种检测装置结构示意图。如图6所示，包括LED、PD、模拟前端(AFE，Analog Front End)和微控制器(MCU，Micro Control Unit)。其中，所示LED用于发射不同频率的光谱，从人体反射，以便产生所需的光信号。所述PD用于接收反射的光信号，并将所述光信号转换成电信号。所述模拟前端用于控制LED和PD工作，并且接受所述PD返回的电信号，对电信号进行初步的处理。在本发明的具体实施例中，所述AFE可以是单个器件，也可以由多个器件组成。所述AFE在将电信号进行初步处理后，还将所述结果返回至微控制器，通过所述微控制器根据返回的结果将检测的结果输出。
图7为本发明具体实施例提供的一种AFE的具体结构示意图。如图7所示，包括I/O模块、LED驱动电路、A/D转换、滤波、放大、DC调节。
其中，所述I/O模块与MCU连接，通过接收所述MCU下发的信号。所述MCU下发的信号包括控制LED开关的信号，所述I/O模块将所述信号发送到LED驱动电路。在此电流激励下，LED发出不同波长的光线。绿光一般用来测试心率，红光红外一般用来测试血氧。所述LED驱动电路根据所述信号，驱动与所述LED驱动电路连接的LED。
所述PD与DC调节连接，并将获得的信号发送到DC调节。LED发出的光线经过人体皮肤折射或者透射或者反射，部分光线进入PD。PD对于接受的光线进行光/电转换，得到电信号。所述PD可以一直处于工作状态，在LED不工作时，只输出直流信号。在LED工作时，输出直流信号和交流信号。
AFE接受PD发送的交流信号(模拟信号)，通过DC调节，放大，滤波，A/D转换等。将所述获得的模拟信号，转换为数字信号，并且将所述数字信号传递给MCU或DSP等。在MCU内部，对于得到的数字信号，应用某种算法进行解析，以便获得心率，血氧等数值。
以上所述的具体实施方式，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施方式而已，并不用于限定本发明的保护范围，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (12)

  1. 一种智能穿戴设备，其特征在于，所述智能穿戴设备包括检测装置和壳体，所述检测装置具体包括一组测量部分和多组发光部分；所述一组测量部分和多组发光部分呈多边形嵌设于壳体上；其中，所述多组发光部分中的每一组和所述一组测量部分分别占据所述多边形的多个角中的一个角，所述多边形的中心位置距离所述多边形的每个角有设定的距离。
  2. 根据权利要求1所述的智能穿戴设备，其特征在于，所述多边形的中心位置还设置第二设备。
  3. 根据权利要求2所述的智能穿戴设备，其特征在于，所述智能穿戴设备还包括无线充电设备，所述无线充电设备包括电磁线圈和磁铁；所述电磁线圈设置在壳体的边缘，所述磁铁为所述第二设备。
  4. 根据权利要求2所述的智能穿戴设备，其特征在于，所述第二设备为测量心电图的电极。
  5. 根据权利要求1所述的智能穿戴设备，其特征在于，所述一组发光部分包括至少一个发光二极管；所述一组测量部分包括至少一个光敏二极管。
  6. 根据权利要求1-5任一项所述的智能穿戴设备，其特征在于，所述多边形为四边形；
    所述四边形由第一组测量部分、第一组发光部分、第二组发光部分和第三组发光部分组成；
    其中，所述第一组发光部分和第二组发光部分与第一组测量部分相邻，所述第三组发光部分与第一组测量部分相对、并且第三组发光部分与第一组发光部分和第二组发光部分相邻。
  7. 根据权利要求6所述的智能穿戴设备，其特征在于，所述第一组发光部分和第二组发光部分分别为至少一个绿光二极管，所述第三组发光部分为至少一个红光/红外光二极管。
  8. 根据权利要求6所述的智能穿戴设备，其特征在于，所述第三组发光部分为至少一个绿光二极管，所述第一组发光部分和第二组发光部分分别为至少一个红光/红外光二极管。
  9. 根据权利要求6所述的智能穿戴设备，其特征在于，所述第一组发光部分、第二组发光部分和第三组发光部分为相同颜色发光二极管；
    所述智能穿戴设备根据第一控制信号开启第一组发光部分和第二组发光部分，根据第二控制信号开启第三组发光部分；其中，所述第一控制信号为减少系统功耗的信号，第二控制信号为增加调制深度的信号。
  10. 根据权利要求6所述的智能穿戴设备，其特征在于，所述第一组发光部分、第二组发光部分和第三组发光部分为红光、红外光和绿光三合一发光二极管；
    所述智能穿戴设备根据第一控制信号或第三控制信号开启第一组发光部分和第二组发光部分，根据第二控制信号或第四控制信号开启第三组发光部分；其中，所述第一控制信号为减少系统功耗的血氧检测信号，第二控制信号为增加调制深度的血氧检测信号，所述第三控制信号为减少系统功耗的心率检测信号，第四控制信号为增加调制深度的心率检测 信号。
  11. 根据权利要求6所述的智能穿戴设备，其特征在于，所述第一组测量部分包括至少一个光敏二极管。
  12. 根据权利要求1-12任一项所述的智能穿戴设备，其特征在于，所述智能穿戴设备为智能手表。
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