一种健康检测电路及终端设备

Abstract

本实用新型实施例公开了一种健康检测电路及终端设备，包括：主控模块、检测光发送模块和检测光接收模块；主控模块与检测光发送模块和检测光接收模块分别电连接；主控模块，用于控制检测光发送模块中的至少三个发光单元分别发送对应的检测光；检测光接收模块，用于接收各检测光经由皮肤所分别反射的模拟信号，并将各模拟信号反馈至主控模块；主控模块，用于对各模拟信号进行处理以实现健康检测，通过上述健康检测电路，能够实现对健康参数的检测，提升健康检测的准确性以及用户体验感。

Claims

1. A health detection circuit, characterized by, The application relates to a health detection device. The device comprises a main control module, a detection light sending module and a detection light receiving module; the main control module is electrically connected with the detection light sending module and the detection light receiving module respectively; The main control module is used for controlling at least three light emitting units in the detection light sending module to respectively send corresponding detection light; the at least three light emitting units respectively emit light of different wavelengths; The detection light receiving module is used for receiving analog signals respectively reflected by the detection light via the skin and feeding back the analog signals to the main control module; The main control module is used for processing the analog signals to realize health detection.

2. The health detection circuit of claim 1, wherein, The detection light sending module comprises an infrared LED lamp, a red LED lamp and a green LED lamp; the infrared LED lamp, the red LED lamp and the green LED lamp are LED lamps of different wavelength ranges respectively; The infrared LED lamp is turned on when receiving a blood glucose detection signal sent by the main control module; The red LED lamp is turned on when receiving a blood oxygen detection signal sent by the main control module; The green LED lamp is turned on when receiving a heart rate detection signal and / or a blood pressure detection signal sent by the main control module.

3. The health detection circuit of claim 2, wherein, The anodes of the infrared LED lamp and the red LED lamp are respectively connected with a first LED driving voltage pin in the main control module; the anode of the green LED lamp is connected with a second LED driving voltage pin in the main control module; The cathodes of the infrared LED lamp and the red LED lamp are respectively connected with a first LED driving signal pin and a second LED driving signal pin in the main control module; The cathode of the green LED lamp is connected with a third LED driving signal pin in the main control module.

4. The health detection circuit of claim 1, wherein, The detection light receiving module comprises a first photosensitive sensor and a second photosensitive sensor; the first photosensitive sensor and the second photosensitive sensor have different photosensitive ranges; The first photosensitive sensor is an infrared light sensitive photodiode and is used for receiving a first analog signal reflected by the skin after the infrared LED lamp emits light; The second photosensitive sensor is a visible light sensitive photodiode and is used for receiving a second analog signal reflected by the skin after the red LED lamp emits light; The second photosensitive sensor is also used for receiving a third analog signal reflected by the skin after the green LED lamp emits light.

5. The health detection circuit of claim 4, wherein, The anodes of the first photosensitive sensor and the second photosensitive sensor are respectively connected with a first sensor input pin and a second sensor input pin in the main control module; The cathodes of the first photosensitive sensor and the second photosensitive sensor are respectively connected with a grounding pin in the main control module.

6. The health detection circuit of claim 1, wherein, The main control module comprises a system on chip and an optoelectronic control module; The system on chip communicates with the optoelectronic control module through a serial peripheral interface; the optoelectronic control module is electrically connected with the detection light sending module and the detection light receiving module respectively; The optoelectronic control module is used for receiving the analog signals fed back by the detection light receiving module and converting the analog signals into digital signals; The system on chip is configured to receive the digital signal and implement health detection according to the digital signal.

7. The health detection circuit of claim 6, wherein, The optoelectronic control module comprises at least a working voltage pin VDD, a first sensor input pin, a second sensor input pin, a ground pin GND, a first LED driving signal pin, a second LED driving signal pin, a third LED driving signal pin, and an LED power voltage pin VLED. The first sensor input pin is connected to the anode of the first photosensitive sensor, and the second sensor input pin is connected to the anode of the second photosensitive sensor. The working voltage pin VDD is connected to an analog front end (AFE) power voltage pin in the system on chip. The ground pin is connected to the cathode of the first photosensitive sensor and the cathode of the second photosensitive sensor in the optoelectronic control module.

8. The health detection circuit of claim 6, wherein, The system on chip comprises an AFE power voltage pin, an AFE LED driving voltage pin, and an LED driving voltage pin. The AFE power voltage pin is connected to the working voltage pin VDD in the optoelectronic control module to provide a first power voltage for the optoelectronic control module. The AFE LED driving voltage pin is connected to the first LED driving voltage pin in the optoelectronic control module to provide a second power voltage for the infrared LED lamp and the red LED lamp. The LED driving voltage pin provides a third power voltage for the green LED lamp through the optoelectronic control module.

9. The health detection circuit of claim 1, wherein, The health detection circuit further comprises a switching module. The switching module is configured to switch at least three light emitting units in the detection light transmitting module and photosensitive sensors corresponding to the at least three light emitting units in the detection light receiving module.

10. A terminal device, comprising: The health detection circuit comprises the health detection circuit as claimed in claims 1-9.

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