TWI583351B - Wearable monitoring device and its control method - Google Patents

Description

Wearable monitoring device and control method thereof

The present invention relates to a wearable monitoring device, and more particularly to a wearable monitoring device including a light volume descriptor. The present invention also relates to a control method of the aforementioned wearable monitoring device.

The light volume descriptor is a non-invasive physiological signal measuring device that measures the physiological state of the subject using optical principles. The signal measured by the light volume descriptor is called Photoplethysmography, and the signal can exhibit physiological states related to the heartbeat and blood pressure of the subject.

When the optical volume descriptor is installed on the subject, if the optical volume descriptor is not properly and stably installed, the optical volume descriptor is easily affected by the ambient light when measuring, resulting in measurement results. An error has occurred. Therefore, how to develop a new wearable monitoring device including a light volume descriptor, which can correctly detect whether it is worn or not, can help solve the aforementioned shortcomings of the prior art.

Accordingly, it is an object of the present invention to provide a wearable monitoring device that can detect whether a user is wearing the correct one.

Another object of the present invention is to provide a control method capable of detecting whether a user wears a correct wearable monitoring device.

Thus, the wearable monitoring device of the present invention comprises a storage unit, a light volume descriptor and a control unit. The storage unit stores a first value range, a second value range, and a predetermined number of times. The light volume descriptor includes a light emitting unit and a light detecting unit. The light detecting unit is configured to detect light and generate a light volume description signal. The control unit is electrically connected to the light emitting unit and the light volume descriptor. The wearable monitoring device can be executed in one of a wear detection mode and a monitoring mode. In the wear detection mode, the control unit controls the illumination unit not to emit light and controls the storage unit to store the light volume description signal as a first Detecting a value, and the control unit controls the illumination unit to emit light and controls the storage unit to store the light volume description signal as a second detection value, and the control unit calculates a first detection value according to the first detection value and the second detection value. a third detection value, when the control unit determines that the first detection value is within the first value range and the number of consecutive times of the third detection value within the second value range reaches the predetermined number of times, the wearable monitoring device is configured by the The wear detection mode enters the monitoring mode, in which the wearable monitoring device executes a monitoring program.

In some implementations, the storage unit further stores a third value range. In the wear detection mode, the control unit further filters the third detection value to generate a fourth detection value, when the control unit determines the first The wearable monitoring device is when the detected value is within the first numerical range and the third detected value is within the second numerical range and the consecutive number of times the fourth detected value is within the third numerical range reaches the predetermined number of times By the wear detection mode Enter this monitoring mode.

In some implementations, the third detected value is the second detected value minus the first detected value.

In some implementations, the illumination unit is an LED illumination unit.

In some implementations, the photodetecting unit is a photonic crystal unit.

The control method of the wearable monitoring device of the present invention comprises a storage unit, a light volume descriptor and a control unit, wherein the storage unit stores a first value range, a second value range, a detection number and The light volume description unit includes a light emitting unit and a light detecting unit, wherein the light detecting unit is configured to detect light and generate a light volume description signal, and the control unit is electrically connected to the light emitting unit and the light a volume description device, the control method of the wearable monitoring device comprises: (A) the wearable monitoring device enters a wear detection mode; (B) the control unit causes the number of detections to be 0; (C) the control unit controls the illumination The unit does not emit light and controls the storage unit to store the light volume description signal as a first detection value; (D) the control unit controls the illumination unit to emit light and controls the storage unit to store the light volume description signal as a second detection value; (E) the control unit calculates a third detection value according to the first detection value and the second detection value; (F) the control unit determines whether the first detection value is Whether the third value is within the second value range or not; (G) when the determination result of step (F) is no, performing step (B) to step (F); (H) When the judgment result of the step (F) is YES, the control unit makes the check The number of measurements is incremented by one; (I) the control unit determines whether the number of detections has reached the predetermined number of times; (J) when the result of the determination in step (I) is negative, performing steps (C) through (F); and (K) When the judgment result of the step (I) is YES, the wearable monitoring device enters a monitoring mode by the wear detection mode, and executes a monitoring program.

In some implementations, the storage unit further stores a third value range, and the control method of the wearable monitoring device further includes: (L) the control unit filters the third detection value after the step (E) To generate a fourth detection value; in step (F), the control unit determines whether the first detection value is within the first value range and whether the third detection value is within the second value range and the fourth detection Whether the value is within the third range of values.

The effect of the present invention is that the user can be effectively detected by determining whether the first detection value, the third detection value, and the fourth detection value are within the first value range, the second value range, and the third value range. Whether the wearable monitoring device is properly worn.

100‧‧‧Wearing monitoring device

22‧‧‧Light detection unit

1‧‧‧ storage unit

3‧‧‧Control unit

2‧‧‧Light Volume Descriptor

200‧‧‧Users

21‧‧‧Lighting unit

S01~S13‧‧‧ Process steps

Other features and advantages of the present invention will be apparent from the embodiments of the present invention. FIG. 1 is a schematic diagram of a hardware connection relationship of the embodiment of the wearable monitoring device of the present invention; A flowchart of a method of controlling a monitoring device; and FIG. 3 is a schematic view of the appearance of the embodiment, illustrating the state of use of the embodiment.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , a first embodiment of the wearable monitoring device 100 of the present invention comprises a storage unit 1 , an optical volume descriptor 2 and a control unit 3 . The wearable monitoring device 100 of the present embodiment is suitable for the user 200 to wear on the wrist, but is not limited thereto.

The storage unit 1 stores a first value range, a second value range, a third value range, a detection number n, and a predetermined number of times. The light volume descriptor 2 includes a light emitting unit 21 and a light detecting unit 22. In this embodiment, the light emitting unit 21 is an LED light emitting unit 21 and is capable of emitting infrared light. The light detecting unit 22 is configured to detect light and generate a photoplethysmography. The photodetecting unit 22 of the embodiment is a photonic crystal unit. The control unit 3 is electrically connected to the light emitting unit 21 and the light volume descriptor 2.

The wearable monitoring device 100 can be implemented in one of a wear detection mode and a monitoring mode. The control method of the wearable monitoring device 100 will be described below. The wearable monitoring device 100 first executes in the wear detection mode. First, as shown in step S01, the control unit 3 causes the number of detections n=0. Next, as shown in step S02, the control unit 3 controls the light-emitting unit 21 not to emit light. Next, as shown in step S03, the control unit 3 controls the storage unit 1 to store the light volume description signal as a first detection value. Next, as shown in step S04, the control unit 3 controls the light-emitting unit 21 to emit light. Next, as shown in step S05, the control unit 3 controls the storage unit 1 to store the light volume description signal as a second detection value. Then, as shown in step S06, the control unit 3 calculates the first detection value and the second detection value. A third detected value. In this embodiment, the third detection value is the second detection value minus the first detection value.

Next, as shown in step S07, the control unit 3 determines whether the first detected value is within the first numerical range. If not, step S01 is performed, and if yes, step S08 is performed. In step S08, the control unit 3 determines whether the third detected value is within the second numerical range. If not, step S01 is performed, and if yes, step S09 is performed.

In step S09, the control unit 3 filters the third detection value to generate a fourth detection value. Next, as shown in step S10, the control unit 3 determines whether the fourth detected value is within the third numerical range. If not, step S01 is performed, and if so, step S11 is performed. Step S11 is the control unit 3 making the number of detections n=n+1. Next, as shown in step S12, the control unit 3 determines whether the number of detections n is equal to the predetermined number of times. If not, step S02 is performed, and if yes, the wearable monitoring device 100 enters the monitoring mode, and step S13 is performed, that is, wearable monitoring. The device 100 performs a monitoring process. In this embodiment, the monitoring program control unit 3 calculates the heartbeat and blood pressure of the user 200 according to the light volume description signal, but is not limited thereto.

In addition, when the user 200 does not properly wear the wearable monitoring device 100, the first detection value, the third detection value, or the fourth detection value may be in the first value range, the second value range, and the Except for the third numerical range, the wearable monitoring device 100 can effectively detect whether the current user 200 is properly worn through the determining steps of steps S07, S08, and S10. In addition, when the determination in step S07, S08 or S10 is NO, the number of detections n is reset to zero, so the number of detections n can count steps S07, S08 and S10 determines that the number of consecutive times is YES, so that the user 200 needs to maintain proper wear. After a period of time, the number of detections n is accumulated for the predetermined number of times, thereby correctly detecting whether the user 200 is correctly and stably worn. The wearable monitoring device 100.

In summary, the wearable monitoring device 100 of the present invention determines whether the first detection value, the third detection value, and the fourth detection value are within the first value range, the second value range, and the third value range. And determining whether the number n of detections is accumulated to a predetermined number of times, can effectively detect whether the user 200 wears the wearable monitoring device 100 correctly and firmly, thereby effectively improving the correct performance of the monitoring result of the monitoring program in the monitoring mode. Therefore, the object of the present invention can be achieved.

However, the above is only the embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and the patent specification of the present invention are still It is within the scope of the patent of the present invention.

S01~S13‧‧‧ Process steps

Claims (10)

A wearable monitoring device includes: a storage unit storing a first value range, a second value range, and a predetermined number of times; a light volume descriptor comprising a light emitting unit and a light detecting unit, the light detecting The measuring unit is configured to detect light and generate a light volume description signal; and a control unit electrically connected to the light emitting unit and the light volume descriptor; the wearable monitoring device can be implemented in a wear detection mode and a monitoring mode. In the wear detection mode, the control unit controls the illumination unit to not emit light and controls the storage unit to store the light volume description signal as a first detection value, and the control unit controls the illumination unit to emit light and control the storage unit. The light volume description signal is stored as a second detection value, and the control unit calculates a third detection value according to the first detection value and the second detection value, when the control unit determines that the first detection value is in the first When the number of consecutive times within a range of values and the third detected value reaches the predetermined number of times, the wearable monitoring device is Wear detection mode to enter the monitoring mode to the monitoring mode, the monitoring device performs a wearable monitor. The wearable monitoring device of claim 1, wherein the storage unit further stores a third value range. In the wear detection mode, the control unit further filters the third detection value to generate a fourth detection value. When the control unit determines that the first detected value is within the first numerical range and the When the third detected value is within the second numerical range and the consecutive number of times the fourth detected value is within the third numerical range reaches the predetermined number of times, the wearable monitoring device enters the monitoring mode by the wear detection mode. The wearable monitoring device of claim 1, wherein the third detection value is the second detection value minus the first detection value. The wearable monitoring device of claim 1, wherein the lighting unit is an LED lighting unit. The wearable monitoring device of claim 1, wherein the light detecting unit is a photoelectric crystal unit. A method for controlling a wearable monitoring device, the wearable monitoring device comprising a storage unit, a light volume descriptor and a control unit, wherein the storage unit stores a first value range, a second value range, a detection number and a The light volume description device includes a light emitting unit and a light detecting unit, wherein the light detecting unit is configured to detect light and generate a light volume description signal, and the control unit is electrically connected to the light emitting unit and the light volume a control method of the wearable monitoring device, comprising: (A) the wearable monitoring device enters a wear detection mode; (B) the control unit causes the number of detections to be 0; (C) the control unit controls the illumination unit Not illuminating and controlling the storage unit to store the light volume description signal as a first detection value; (D) the control unit controls the illumination unit to emit light and controls the storage unit to store the light volume description signal as a second detection value; E) the control unit calculates a third detection value according to the first detection value and the second detection value; (F) the control unit determines whether the first detected value is within the first numerical value range and whether the third detected value is within the second numerical value range; (G) when the determining result of the step (F) is negative, Performing steps (B) to (F); (H) when the judgment result of the step (F) is YES, the control unit increments the number of detections by one; (I) the control unit determines whether the number of detections reaches the predetermined number of times (J) when the judgment result of the step (I) is NO, performing the steps (C) to (F); and (K) when the judgment result of the step (I) is YES, the wearable monitoring device is The wear detection mode enters a monitoring mode and executes a monitoring program. The control method of the wearable monitoring device according to claim 6, wherein the storage unit further stores a third value range, and the control method of the wearable monitoring device further comprises: (L) after the step (E) The control unit filters the third detection value to generate a fourth detection value; in step (F), the control unit determines whether the first detection value is within the first value range and whether the third detection value is in the Within the second range of values and whether the fourth detected value is within the third range of values. The control method of the wearable monitoring device according to claim 6, wherein the third detection value is the second detection value minus the first detection value. The control method of the wearable monitoring device according to claim 6, wherein The light emitting unit is an LED light emitting unit. The control method of the wearable monitoring device according to claim 6, wherein the light detecting unit is a photoelectric crystal unit.