CN104932672A - Portable electronic device and physiological measurement method - Google Patents

Abstract

The present invention relates to a physiological measurement method and a portable electronic device for executing the method. The portable electronic device includes a key and a display. The physiological measurement method includes the following steps: sending at least one trigger signal when the key is pressed, sending a first light signal to the outside of the key through the key according to the trigger signal, receiving a second light signal through the key, and obtaining physiological information according to the second light signal. The second light signal is a light signal reflected by the first light signal when it encounters an object.

Description

Portable electronic device and physiological measurement method

technical field

The invention relates to an electronic device with measurement function, and in particular to a portable electronic device and a physiological measurement method.

Background technique

Modern portable electronic devices already have remote control functions, which can emit infrared signals to control home appliances like ordinary home appliance remote controls, such as controlling TV turntables or adjusting TV volume. There are also some portable electronic devices that can emit infrared signals to the user's finger, and measure the user's heart rate (HBR: heart beat rate) by receiving the reflected signal from the user's finger.

Although both are infrared signals, in current portable electronic devices, the remote control function and the heartbeat measurement function are realized by two different hardware modules instead of sharing one hardware module. In order to transmit and receive signals, the housing of the portable electronic device needs to be provided with two openings, which complicates the design of the housing. In addition, measuring the heartbeat requires complicated operations. The user must wake up the phone, unlock the touch screen, launch the corresponding application software, and place a finger on the measurement opening in the case. These problems require technical improvements.

Contents of the invention

The present invention provides a portable electronic device and a physiological measurement method to solve the above-mentioned problems of the traditional portable electronic device.

The portable electronic device of the present invention includes a sensing module and a transceiver circuit. The sensing module includes a button, a transmitting unit and a receiving unit. The sensing module sends out at least one trigger signal when the button is pressed. The transmitting unit is arranged inside the key, and is used for emitting the first light signal to the outside of the key through the key. The receiving unit is arranged inside the key, and receives the second light signal through the key. The second optical signal is an optical signal reflected back when the first optical signal encounters an object. The transceiver circuit is coupled to the sensing module, and is used for controlling the transmitting unit to emit a first light signal to the outside of the key through the key according to the trigger signal, and to obtain physiological information according to the second light signal. The button has a light-transmitting material to allow the first light signal and the second light signal to pass through.

The physiological measurement method of the present invention is executed by a portable electronic device. The portable electronic device includes keys and a display. This physiological measurement method includes the following steps: sending out at least one trigger signal when the button is pressed, sending a first light signal to the outside of the button through the button according to the trigger signal, receiving a second light signal through the button, and obtaining a signal according to the second light signal. physiological information. The second optical signal is an optical signal reflected back when the first optical signal encounters an object.

The above-mentioned portable electronic device and physiological measurement method can use a single sensing module to measure the user's physiological information, which can reduce the opening of the casing of the portable electronic device and greatly simplify the operation process of measuring physiological information.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings.

Description of drawings

FIG. 1 is a schematic diagram of a portable electronic device according to an embodiment of the invention.

2A to 2E are schematic diagrams of a sensing module of a portable electronic device according to various embodiments of the present invention.

3A to 3D are schematic diagrams of transceiver circuits of portable electronic devices according to various embodiments of the present invention.

4 and 5 are flowcharts of a physiological measurement method according to an embodiment of the present invention.

FIG. 6 is a schematic diagram of a display screen of a portable electronic device according to an embodiment of the present invention.

FIG. 7 is a schematic diagram of a display screen of a portable electronic device according to another embodiment of the present invention.

Description of reference symbols

100: Portable Electronic Devices

110: Sensing module

120: transceiver circuit

130: Processor

140: display

150: storage device

210: button

220: launch unit

221～225: Optical transmitter

230: sensor

240: receiving unit

241～244: Optical receiver

310: controller

312, 314: toggle switch

322, 334, 344, 354: Amplifiers

332, 352: filter

336: Analog to Digital Converter

338: storage unit

342: Modulator

356: Demodulator

405～455, 510～560: method steps

610: finger

620: time

630: Heart rate

640: Heartbeat waveform

650: Calorie Expenditure Information

700: User

Detailed ways

FIG. 1 is a schematic diagram of a portable electronic device 100 according to an embodiment of the invention. The portable electronic device 100 may be a smart phone, a personal digital assistant (PDA: personal digital assistant), a tablet computer, or a wearable electronic device made into a watch or the like. The portable electronic device 100 includes a sensing module 110 , a transceiver circuit 120 , a processor 130 , a display 140 , a storage device 150 and a camera module 160 . The transceiver circuit 120 is coupled to the sensing module 110 , the processor 130 is coupled to the sensing module 110 and the transceiver circuit 120 , and the display 140 , the storage device 150 and the camera module 160 are all coupled to the processor 130 .

The sensing module 110 can emit light signals to remotely control other electronic devices. The sensing module 110 can also transmit light signals to the user's fingers or other skin parts, receive light signals reflected by the user's fingers or other skin parts, and convert the light signals into electronic signals to measure the user's physiological information. The above physiological information may be the user's heartbeat rate, heartbeat waveform, blood oxygen concentration, or a combination of the above information. The transceiver circuit 120 can provide the signal emitted by the sensing module 110 and analyze the converted electronic signal of the sensing module 110 to obtain physiological information of the user. The processor 130 can execute the operating system and application software of the portable electronic device 100 . The display 140 is a touch display capable of displaying the user interface of the portable electronic device 100 and receiving touch input from the user. The storage device 150 may be a memory or a hard disk. The storage device 150 can store the physiological information of the user, and can also store the operating system, application software, and data required for the operation of the portable electronic device 100 . The camera module 160 can take pictures and capture images and store the images in the storage device 150 after being processed by the processor 130 .

FIG. 2A is a schematic side view of the sensing module 110 of the portable electronic device 100 according to an embodiment of the present invention. The sensing module 110 includes a button 210 , a transmitting unit 220 , a sensor 230 , and a receiving unit 240 . The key 210 is disposed on the casing of the portable electronic device 100 , and the transmitting unit 220 , the sensor 230 , and the receiving unit 240 are all disposed inside the key 210 . The top of FIG. 2A is the outside of the button 210 , that is, the external direction of the portable electronic device 100 ; the bottom of FIG. 2A is the inside of the button 210 , that is, the internal direction of the portable electronic device 100 . The sensor 230 is coupled to the transceiver circuit 120 and the processor 130 . The transmitting unit 220 and the receiving unit 240 are coupled to the transmitting and receiving circuit 120 .

When the sensor 230 senses that the button 210 is pressed, it will send a trigger signal to the transceiver circuit 120 and the processor 130 . When receiving the trigger signal, the transceiver circuit 120 controls the transmitting unit 220 to emit an optical signal, so as to perform the above-mentioned measurement function. The light signal can be an infrared signal, a red light signal, or both. The receiving unit 240 can receive optical signals for the above-mentioned measurement function. The button 210 has a light-transmitting material to allow infrared rays and red light to pass through. The emitting unit 220 emits a light signal through the button 210 , that is, the light signal emitted by the emitting unit 220 is emitted to the outside of the portable electronic device 100 through the button 210 . In addition, the receiving unit 240 receives the light signal through the button 210 , that is, the light signal outside the portable electronic device 100 also enters the inside of the portable electronic device 100 through the button 210 and is received by the receiving unit 240 . The transmitting unit 220 includes at least one optical transmitter to send out optical signals, and the receiving unit 240 includes at least one optical receiver to receive optical signals. The light transmitter can be realized by an infrared or red light emitting diode (LED: light emitting diode), and the light receiver can be realized by a photodiode.

FIG. 2B is a schematic top view of the sensing module 110 in FIG. 2A . From this perspective, the transmitting unit 220 , the sensor 230 , and the receiving unit 240 are all disposed under the key 210 , and the area of the key 210 is sufficient to cover the transmitting unit 220 , the sensor 230 , and the receiving unit 240 . In this embodiment, the key 210 is a power-on key of the portable electronic device 100 . When the user presses the button 210 to start or wake up the portable electronic device 100 , if the user's finger rests on the button 210 , the portable electronic device 100 can measure the user's physiological information by the way.

FIG. 2C is a schematic side view of the sensing module 110 according to an embodiment of the invention. In this embodiment, the transmitting unit 220 includes an optical transmitter 221 , and the receiving unit 240 includes an optical receiver 241 . Both the light transmitter 221 and the light receiver 241 are disposed inside the key 210 and coupled to the transceiver circuit 120 . The sensing module 110 of this embodiment can be used to remotely control other electronic devices. The light emitter 221 can be controlled by the transceiver circuit 120 to send an infrared signal to the outside of the button 210 through the button 210 to remotely control another electronic device, such as a TV. The optical receiver 241 can receive an infrared signal from an electronic device through the key 210 , such as an infrared signal sent by a remote controller, and the transceiver circuit 120 can learn a remote control signal of a remote controller according to the infrared signal.

In another embodiment, the sensing module 110 of FIG. 2C can be used to measure the user's heartbeat rate or heartbeat waveform. These heartbeat measurements can use infrared or red light. Therefore, the light emitter 221 can be controlled by the transceiver circuit 120 to send an infrared signal or a red light signal through the button 210 , and the light receiver 241 can correspondingly receive the infrared signal or red light signal reflected by the user's finger through the button 210 .

FIG. 2D is a schematic side view of the sensing module 110 according to another embodiment of the present invention. In this embodiment, the transmitting unit 220 includes two optical transmitters 222 and 223 , and the receiving unit 240 includes an optical receiver 242 . Both the light transmitters 222 , 223 and the light receiver 242 are disposed inside the key 210 and coupled to the transceiver circuit 120 . The light emitter 222 can be controlled by the transceiver circuit 120 to send an infrared signal through the button 210 , and the light emitter 223 can be controlled by the transceiver circuit 120 to send a red light signal through the button 210 . The light receiver 242 can receive reflected infrared signals and red light signals through the key 210 . The light receiver 242 can also receive infrared signals from other electronic devices, such as infrared signals from a remote control, through the key 210 . The sensing module 110 of this embodiment can be used to remotely control other electronic devices, measure the user's heartbeat rate and heartbeat waveform, and measure the user's blood oxygen concentration. Infrared or red light can be used to measure heart rate and heartbeat waveform. If blood oxygen concentration is to be measured, both infrared and red light need to be used.

FIG. 2E is a schematic side view of the sensing module 110 according to another embodiment of the present invention. In this embodiment, the transmitting unit 220 includes two light transmitters 224 and 225 , and the receiving unit 240 includes two light receivers 243 and 244 . The light emitters 224 , 225 and the light receivers 243 , 244 are disposed inside the key 210 and coupled to the transceiver circuit 120 . The light emitter 224 can be controlled by the transceiver circuit 120 to send an infrared signal through the button 210 , and the light emitter 225 can be controlled by the transceiver circuit 120 to send a red light signal through the button 210 . The light receiver 243 can receive the reflected infrared signal through the button 210 . The light receiver 243 can also receive an infrared signal from the remote control through the button 210 . The light receiver 244 can receive the reflected red light signal through the button 210 . The sensing module 110 of this embodiment can be used to remotely control other electronic devices, measure the user's heartbeat rate and heartbeat waveform, and measure the user's blood oxygen concentration.

FIG. 3A is a schematic diagram of the transceiver circuit 120 of the portable electronic device 100 according to an embodiment of the invention. The transceiver circuit 120 of this embodiment is coupled to the sensing module 110 of FIG. 2C, and includes a controller 310, an amplifier 322, a filter 332, an amplifier 334, an analog-to-digital converter (ADC:analog-to-digital converter) 336, and a storage unit 338 . The amplifier 322 is coupled between the light transmitter 221 and the controller 310 . The filter 332 , the amplifier 334 , the analog-to-digital converter 336 , and the storage unit 338 are sequentially coupled in series between the optical receiver 241 and the controller 310 . The controller 310 is also coupled to the sensor 230 and the processor 130 .

When the user presses the button 210, the controller 310 will receive a trigger signal from the sensor 230, and then the controller 310 will send out an electronic signal S ₁ in response to the trigger signal. The amplifier 322 amplifies the electronic signal S ₁ and outputs it to the light transmitter 221 . The light transmitter 221 converts the amplified electronic signal S1 into _a light signal, and sends out the light signal through the button 210 . When the light signal emitted by the light transmitter 221 encounters an object, such as a user's finger or other skin parts, the light signal will be reflected back and received by the light receiver 241 through the button 210 . Then, the light receiver 241 converts the reflected light signal into another electronic signal S ₂ , and transmits the electronic signal S ₂ to the filter 332 . _The filter 332 filters out noise in the electronic signal S2. Amplifier 334 amplifies electronic signal S ₂ . The analog-to _- digital converter 336 converts the amplified electronic signal S2 from an analog signal to a digital signal. The storage unit 338 converts the digital signal output by the analog-to-digital converter 336 into a binary value, and stores the binary value corresponding to the digital signal for reading by the controller 310 . After the controller 310 collects and analyzes the binary value, the physiological information of the user can be obtained according to the binary value.

In this embodiment, the controller 310 can use the electronic signal S1 to control the light transmitter 221 to emit _an infrared signal or a red light signal, and analyze the value in the storage unit 338 to obtain the user's heartbeat rate and/or heartbeat waveform. As for how to analyze the signal to obtain the heartbeat rate and the heartbeat waveform, it is already an open prior art, so it is not necessary to go into details here.

FIG. 3B is a schematic diagram of a transceiver circuit 120 according to another embodiment of the present invention. The transceiver circuit 120 of this embodiment is coupled to the sensing module 110 of FIG. 2E . The difference between the transceiver circuit 120 in FIG. 3B and the transceiver circuit 120 in FIG. 3A is that there are two more switches 312 and 314 . When transmitting and receiving infrared signals, the controller 310 controls the switch 312 to connect the amplifier 322 and the light transmitter 224 , and controls the switch 314 to connect the light receiver 243 and the filter 332 . When it is necessary to transmit and receive red light signals, the controller 310 controls the switch 312 to connect the amplifier 322 and the light transmitter 225 , and controls the switch 314 to connect the light receiver 244 to the filter 332 .

The transceiver circuit 120 of FIG. 3B can be used to measure the user's heartbeat rate and/or heartbeat waveform just like the transceiver circuit 120 of FIG. 3A . In addition, the transceiver circuit 120 in FIG. 3B can be used to measure the blood oxygen concentration of the user. The controller 310 can send _an electronic signal S1 to control the light emitter 224 to emit an infrared signal, analyze the value in the storage unit 338, send _an electronic signal S1 again to control the light emitter 225 to emit a red light signal, and then analyze the storage unit 338 The value in it is used to obtain the blood oxygen concentration of the user. As for how to analyze the signal to obtain the blood oxygen concentration, it is already a public prior art, so it is not necessary to repeat it here.

In another embodiment, the transceiver circuit 120 in FIG. 3B can be simplified to be coupled to the sensing module 110 in FIG. 2D . In this embodiment, the switch 312 is coupled to the amplifier 322 and the light transmitters 222 and 223 . The toggle switch 314 can be omitted. The filter 332 can be coupled to the light receiver 242 .

FIG. 3C is a schematic diagram of a transceiver circuit 120 according to another embodiment of the present invention. The transceiver circuit 120 of this embodiment is coupled to the sensing module 110 of FIG. 2C . The difference between the transceiver circuit 120 of FIG. 3C and the transceiver circuit 120 of FIG. 3A is that there are two more switches 312 and 314, a modulator (modulator) 342, an amplifier 344, a filter 352, an amplifier 354, and a demodulator (demodulator) 356. The modulator 342 and the amplifier 344 are sequentially coupled in series between the controller 310 and the switch 312 . The filter 352 , the amplifier 354 , and the demodulator 356 are sequentially coupled in series between the switch 314 and the controller 310 . Except for the switches 312 and 314 , the above added elements are for the remote control function of the portable electronic device 100 .

The transceiver circuit 120 in FIG. 3C can be used to remotely control other electronic devices or measure the user's heartbeat rate and/or heartbeat waveform. When other electronic devices need to be controlled remotely, the controller 310 controls the switch 312 to connect the amplifier 344 to the light transmitter 221 , and controls the switch 314 to connect the light receiver 241 to the filter 352 . When the user's heartbeat rate and/or heartbeat waveform need to be measured, the controller 310 controls the switch 312 to connect the amplifier 322 and the optical transmitter 221 , and controls the switch 314 to connect the optical receiver 241 to the filter 332 .

When remote controlling other electronic devices, the controller 310 sends a remote control command. The modulator 342 performs modulation according to the remote control command to generate the electronic signal S ₃ . Amplifier 344 amplifies electronic signal S ₃ . _The light emitter 221 converts the amplified electronic signal S3 into an infrared signal, and sends the infrared signal to the outside of the key 210 through the key 210 to remotely control another electronic device.

The transceiver circuit 120 in FIG. 3C can learn remote control commands from other remote controls. The light receiver 241 can receive infrared signals from other remote controllers through the button 210, and convert the infrared signals into another electronic signal S ₄ . _The filter 352 filters out noise in the electronic signal S4. Amplifier 354 amplifies electronic signal S ₄ . _The demodulator 356 demodulates the amplified electronic signal S4 to obtain the remote control command contained in the electronic signal S4 _. The controller 310 can learn the remote control command.

FIG. 3D is a schematic diagram of a transceiver circuit 120 according to another embodiment of the present invention. The transceiver circuit 120 of this embodiment is coupled to the sensing module 110 of FIG. 2E . The difference between the transceiver circuit 120 in FIG. 3D and the transceiver circuit 120 in FIG. 3C is that the switches 312 and 314 are coupled to the sensing module 110 in FIG. 2E . The controller 310 can control the switch 312 to connect the amplifier 344 and the light emitter 224 to send an infrared signal for the remote control function, or connect the amplifier 322 and the light emitter 224 to send an infrared signal for the physiological measurement function, or connect the amplifier 322 and the light emitter 225 for the physiological measurement function A red light signal is emitted. In addition, the controller 310 can control the switch 314 to connect the light receiver 243 and the filter 352 to receive the infrared signal for the remote control function, or connect the light receiver 243 and the filter 332 to receive the infrared signal for the physiological measurement function, or connect the light receiver 244 The sum filter 332 receives the red light signal for the physiological measurement function.

The transceiver circuit 120 in FIG. 3D can send out infrared signals and red light signals, and can receive infrared signals and red light signals, so it can be used to remotely control another electronic device and measure the user's heartbeat rate, heartbeat waveform and blood oxygen concentration.

In another embodiment, the transceiver circuit 120 in FIG. 3D can be simplified to be coupled to the sensing module 110 in FIG. 2D . In this embodiment, the switch 312 is coupled to the amplifiers 344 , 322 and the light emitters 222 and 223 . The switch 314 can couple the optical receiver 242 and the filters 352 , 332 .

FIG. 4 is a flow chart of a physiological measurement method according to an embodiment of the present invention. The portable electronic device 100 can execute the method to measure the user's physiological information. When the user presses the key 210 , the sensor 230 senses that the key 210 is pressed at step 405 , and then sends a trigger signal to wake up the processor 130 at step 410 , and sends another trigger signal to wake up the controller 310 . In another embodiment, the sensor 230 can send the same trigger signal to the processor 130 and the controller 310 . When the processor 130 receives the trigger signal, the processor 130 can control the portable electronic device 100 to enter an operating state from a sleep state according to the trigger signal. In this embodiment, the definition of the sleep state and the operation state of the portable electronic device 100 is whether the display 140 has a display image. When the portable electronic device 100 is in the sleep state, the display 140 is turned off. While in the operating state, the display 140 is activated to display an operation screen.

The controller 310 receives the trigger signal from the sensor 230, and in step 415, according to the trigger signal, controls the light emitter of the sensing module 110 to send a first light signal to the outside of the key 210 through the key 210, and then the sensing module 110 In step 420, the light receiver receives a second light signal reflected by an object when the first light signal is sent through the key 210 . The controller 310 checks in step 425 whether the light receiver receives the reflected second light signal. If not received, it means that the user's finger is released immediately after pressing the key 210 , and the physiological information cannot be measured, so the controller 310 enters a sleep state in step 440 .

If the light receiver receives the reflected light signal, the controller 310 checks in step 430 whether the value provided by the storage unit 338 is enough to obtain the physiological information of the user. If not, the controller 310 checks at step 435 whether the currently performed physiological measurement has timed out. For example, the time limit for this timeout can be set to 0.5 seconds, 1 second, 2 seconds or 3 seconds. If it has not timed out, flow returns to step 415 to collect more values for analysis by the controller 310 . If it has timed out, the controller 310 enters a sleep state at step 440 .

Returning to step 430, if the check result is that the value provided by the storage unit 338 is sufficient to obtain the physiological information of the user, then the controller 310 analyzes the above value in step 445 to obtain the physiological information of the user. Then the controller 310 checks at step 450 whether the processor 130 needs to be notified to read the physiological information, because the processor 130 may not be notified to read the physiological information until the physiological information has accumulated to a preset amount. If the processor 130 does not need to be notified, the controller 310 enters a sleep state at step 440 . If the processor 130 needs to be notified, the controller 310 sends a notification signal to the processor 130 at step 455 . The processor 130 obtains the physiological information of the user from the controller 310 according to the notification signal. The processor 130 can store the physiological information in the storage device 150, or control the display 140 to display the physiological information, or further process the physiological information.

FIG. 5 is a flow chart of a physiological measurement method according to another embodiment of the present invention. The portable electronic device 100 can implement the method to verify the user's identity by using physiological information. For example, heartbeat waveforms can be used to identify people like fingerprints. The portable electronic device 100 may execute the method shown in FIG. 4 at step 510 to obtain physiological information of a user. The processor 130 can store the physiological information in the storage device 150 at step 520 . This physiological information can be used as the identity certificate of the user. Afterwards, when the button 210 is pressed by the user, the portable electronic device 100 may execute the method shown in FIG. 4 again in step 530 to obtain the physiological information of the user. In this embodiment, the key 210 is a power-on key of the portable electronic device 100 .

Next, the processor 130 may compare the physiological information measured in step 530 with the physiological information stored in the storage device 150 in step 520 in step 540 , and check in step 550 whether the physiological information obtained in the two measurements are consistent. If not, it means that the user in step 530 is not the correct user, and the process ends here. If the physiological information obtained from the two measurements are consistent, it means that the user in step 530 is a correct user, and the processor 130 may execute a corresponding preset function in step 560 .

The above preset function may be to release the lock state of the display 140 . As mentioned above, the display 140 is a touch display. In this embodiment, the locked state means that the display 140 will display a locked screen (Lock Screen), and it needs various known sliding unlocking or password unlocking methods to release the locked state and enter an operable state, thus Various application program icons and function keys are displayed for user touch operation. However, through the above-mentioned method of FIG. 5 , the portable electronic device 100 can use biological information to verify the user's identity, thereby directly releasing the lock state of the display 140 , and omitting the known sliding unlocking or password unlocking methods. Alternatively, the above preset function may further include controlling the display 140 to display the physiological information of the user. Alternatively, the above preset function may further include controlling the display 140 to display relevant information of physiological information. For example, the processor 130 can control the display 140 to display the suggestion information of the application software according to the heart rate of the user. For example, when the user's heart rate exceeds a preset threshold, the processor 130 may suggest the user to execute music player software or game software to calm down. The above preset functions may also be a combination of all or part of the above functions.

FIG. 6 is a schematic diagram of a display screen of the display 140 of the portable electronic device 100 according to an embodiment of the present invention. In this embodiment, the key 210 is a power-on key of the portable electronic device 100 . When the user presses the button 210 with the finger 610 and completes identity verification through steps 530 , 540 , and 550 in FIG. 5 , the preset function performed by the processor 130 is to control the display 140 to display the screen shown in FIG. 6 . In this embodiment, the display screen of the display 140 includes the time 620 , the user's heartbeat rate 630 , the user's heartbeat waveform 640 , and the user's calorie (calorie) consumption information 650 . Time 620 may be the current time or the time elapsed by a stopwatch. The processor 130 may calculate calorie consumption according to the user's heart rate 630 to display calorie consumption information 650 . The calorie consumption information 650 can display the calorie consumption per unit time, or the cumulative calorie consumption during the stopwatch timing.

In other embodiments, steps 510, 520, 530, 540, and 550 in FIG. 5 can also be omitted, and the user can pick up the portable electronic device 100 and press the button 210 to start measuring physiological information and see FIG. 6 The display screen is very fast and convenient, and does not require traditional complicated operations such as unlocking the display and executing application software. Moreover, the key 210 can be a power key for starting or waking up the portable electronic device 100. When the portable electronic device 100 is in a sleep state, pressing the key 210 once can wake up the portable electronic device 100, unlock the display 140, and measure Physiological information, whether viewing physiological information or performing follow-up operations is very simple.

FIG. 7 is a schematic diagram of a display screen of the display 140 of the portable electronic device 100 according to another embodiment of the present invention. Please refer to FIG. 1 and FIG. 7 at the same time. In this embodiment, the button 210 is a shutter button of the camera module 160 in the portable electronic device 100 for taking pictures. When the user 700 activates a camera Selfie function on the portable electronic device 100 and presses the button 210 with the finger 610 to capture a photo through the camera module 160, the portable electronic device 100 can execute the method shown in FIG. 4 to measure Physiological information of the user 700 , such as the heartbeat rate 630 and the heartbeat waveform 640 . Next, the physiological information measured by the processor 130 can be edited by image processing and added to the captured photo, and the edited photo can be stored in the storage device 150 .

To sum up, the present invention can measure the physiological information of the user by the way when the user presses the function button (such as the power button or the camera shutter button) of the portable electronic device, which can save the traditional complicated operation, and such a simple method can increase User willingness to use this measurement feature. The measured physiological information can be used to authenticate the user and perform preset functions such as unlocking the display or displaying physiological information. Unlocking such a display only requires the user to press a key once, without entering a password or performing special operations. The invention uses a single sensing module to perform remote control function and measurement function, which can reduce hardware cost and occupy less space. In addition, the remote control function and measurement function of the present invention transmit and receive light signals through the existing power button or camera shutter key, so the present invention does not need to configure openings in the shell of the portable electronic device for the remote control function and measurement function. The shell design can be simplified to make the shell more beautiful.

Although the present invention has been disclosed as above with the embodiments, it is not intended to limit the present invention. Those skilled in the art can make some changes and modifications without departing from the spirit and scope of the present invention, so the protection scope of the present invention should be The claims of the present invention shall prevail.

Claims (17)

1. A portable electronic device, comprising: The sensing module includes a button, a transmitting unit and a receiving unit, wherein the sensing module sends out at least one trigger signal when the button is pressed, and the transmitting unit is arranged on the inner side of the button for passing the button to the outside of the button sending out a first optical signal, and the receiving unit is arranged inside the key to receive a second optical signal through the key, wherein the second optical signal is an optical signal reflected back when the first optical signal encounters an object; and The transceiver circuit, coupled to the sensing module, is used to control the transmitting unit to send the first light signal to the outside of the button through the button according to the trigger signal, and to obtain physiological information according to the second light signal, wherein The button has a light-transmitting material to allow the first light signal and the second light signal to pass through. 2. The portable electronic device as claimed in claim 1, wherein the sensing module further comprises: The sensor is arranged on the inner side of the key, coupled with the transceiver circuit, and is used for sensing the pressing of the key and sending out the trigger signal. 3. The portable electronic device as claimed in claim 1, wherein the first light signal is an infrared signal or a red light signal; the emitting unit further comprises a light emitter, and the light emitter sends the first light signal through the button ; and the receiving unit further includes a light receiver, and the light receiver receives the second light signal through the key. 4. The portable electronic device as claimed in claim 3, wherein the light emitter is also controlled by the transceiver circuit to send a third light signal to the outside of the button through the button to remotely control another electronic device, and the light The receiver also receives the fourth light signal from the remote controller through the button. 5. The portable electronic device as claimed in claim 1, wherein the first light signal includes an infrared signal and a red light signal; the emitting unit further includes a first light emitter and a second light emitter, and the first light emits The transmitter sends out the infrared signal through the button, the second light emitter sends out the red light signal through the button; and the receiving unit also includes a light receiver, and the light receiver receives the reflected infrared signal and the red light signal through the button light signal. 6. The portable electronic device as claimed in claim 1, wherein the first light signal includes an infrared signal and a red light signal; the emitting unit further includes a first light emitter and a second light emitter, and the first light emits The transmitter sends out the infrared signal through the button, the second light emitter sends out the red light signal through the button; and the receiving unit also includes a first light receiver and a second light receiver, and the first light receiver passes through the button The key receives the reflected infrared signal, and the second light receiver receives the reflected red light signal through the key. 7. The portable electronic device as claimed in claim 1, wherein the transceiver circuit comprises: a controller, coupled to the sensing module, for sending a first electronic signal according to the trigger signal; The first amplifier, coupled between the controller and the sensing module, is used to amplify the first electronic signal, wherein the transmitting unit converts the amplified first electronic signal into the first optical signal, and the the receiving unit converts the second optical signal into a second electronic signal; a filter, coupled to the receiving unit, for filtering noise in the second electronic signal; a second amplifier, coupled to the filter, for amplifying the second electronic signal; an analog-to-digital converter, coupled to the second amplifier, for converting the amplified second electronic signal from an analog signal to a digital signal; and The storage unit is coupled to the analog-to-digital converter and the controller, and is used for storing a binary value corresponding to the digital signal, wherein the controller obtains the physiological information according to the binary value. 8. The portable electronic device as claimed in claim 1, wherein the controller is also used to issue a first remote control instruction, and the transceiver circuit further comprises: a modulator, coupled to the controller, for modulating according to the first remote control instruction to generate a second electronic signal; and The second amplifier, coupled between the modulator and the sensing module, is used to amplify the second electronic signal, wherein the transmitting unit converts the amplified second electronic signal into a third optical signal, and passes the The button emits the third light signal to the outside of the button to remotely control another electronic device. 9. The portable electronic device as claimed in claim 8, wherein the receiving unit also receives a fourth optical signal through the button, and converts the fourth optical signal into a third electronic signal, and the transceiver circuit further comprises: a filter, coupled to the receiving unit, for filtering noise in the third electronic signal; a third amplifier, coupled to the filter, for amplifying the third electronic signal; and The demodulator, coupled to the third amplifier, is used to demodulate the amplified third electronic signal to obtain the second remote control command. 10. The portable electronic device as claimed in claim 1, wherein the physiological information includes at least one of heart rate, heart waveform, and blood oxygen concentration. 11. The portable electronic device as claimed in claim 1, wherein the button is a power button, and the portable electronic device further comprises: display; and A processor, coupled to the sensing module and the display, is used to control the portable electronic device from a sleep state to an operation state according to the trigger signal, wherein in the sleep state, the display is turned off, and in the operation state , the display is activated to display the operation screen. 12. The portable electronic device as claimed in claim 11 , further comprising: The storage device is coupled to the processor, wherein the transceiver circuit sends a notification signal to the processor, and the processor obtains the physiological information from the transceiver circuit according to the notification signal, and stores the physiological information in the storage device. 13. The portable electronic device as claimed in claim 1, wherein the button is a camera shutter button, and the portable electronic device further comprises a camera module for capturing photos, wherein the physiological information is added to the photos. 14. The portable electronic device as claimed in claim 11, wherein the display is a touch display, and the default function is to release the lock state of the display. 15. A physiological measurement method, performed by a portable electronic device, the portable electronic device comprising buttons and a display, the physiological measurement method comprising: sending at least one trigger signal when the button is pressed; emitting a first light signal to the outside of the key through the key according to the trigger signal; receiving a second optical signal through the button, wherein the second optical signal is an optical signal reflected back when the first optical signal encounters an object; and Physiological information is obtained according to the second light signal. 16. The physiological measurement method according to claim 15, wherein the button is a power button, and the physiological measurement method further comprises: According to the trigger signal, the portable electronic device is controlled to enter the operation state from the sleep state, wherein in the sleep state, the display is turned off, and in the operation state, the display is activated to display an operation screen. 17. The physiological measurement method as claimed in claim 15, wherein the key is a camera shutter key, the portable electronic device further comprises a camera module, and the physiological measurement method further comprises: taking pictures with the camera module; and Add the physiological information to the photo.