Smart wearable device

Abstract

The application provides a kind of intelligent wearable device, and the intelligent wearable device includes device main body, PH value detection piece, light detection module and main control module. Wherein, the PH value detection piece is set on the device main body and close to the position of human skin, the light detection module is set on the device main body, the main control module is set in the device main body, and the main control module and the light detection module are electrically connected. The application aims to detect the PH value of the user through the intelligent wearable device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent wearable devices, and particularly relates to an intelligent wearable device. BACKGROUND

[0002] With the development of information industry, intelligent wearable devices such as smart bands and smart watches are increasingly popular, especially those with health detection functions. However, there is no intelligent wearable device with direct sweat PH value detection function on the current market, which is difficult to meet the current user demand for health detection. SUMMARY

[0003] The main purpose of the present application is to provide an intelligent wearable device, which aims to detect the PH value of a user through the intelligent wearable device.

[0004] To achieve the above purpose, the present application provides an intelligent wearable device, which comprises:

[0005] a device body;

[0006] a PH value detection piece, which is arranged on the device body in close contact with human skin, and changes its color according to the PH value of the sweat it contacts;

[0007] a light detection module, which is arranged on the device body, and is used to detect the color of the PH value detection piece and output a corresponding color detection signal;

[0008] a main control module, which is arranged in the device body, and is electrically connected with the light detection module, and is used to determine the PH value of the sweat contacted by the PH value detection piece according to the color detection signal.

[0009] Optionally, the material of the PH value detection piece is polyaniline polymer.

[0010] Optionally, the light detection module comprises:

[0011] a first photoelectric sensor, which is arranged on the device body in correspondence with the position of the PH value detection piece, and is electrically connected with the main control module;

[0012] a light emitting module, which is arranged on the device body in a position facing the human skin, and is electrically connected with the main control module.

[0013] The master module is configured to control the light-emitting module to emit a first light signal to human skin, so that the first light signal is reflected by the human skin, penetrates the PH value detection member, and irradiates on the first photoelectric sensor;

[0014] The first photoelectric sensor is configured to detect a wavelength of the first light signal penetrating the PH value detection member, and output a corresponding first wavelength detection signal; wherein the color detection signal is the first wavelength detection signal.

[0015] The master module is further configured to determine a PH value of sweat contacted by the PH value detection member according to the first wavelength detection signal.

[0016] Optionally, the master module further has a signal input end configured to access a PH value detection trigger signal.

[0017] The master module is further configured to control the light-emitting module to stop working when the PH value detection trigger signal is not received.

[0018] The first photoelectric sensor is further configured to detect a wavelength of ambient light penetrating the PH value detection member, and output a corresponding second wavelength detection signal.

[0019] The master module is further configured to control the light-emitting module to emit a first light signal to human skin when the PH value detection trigger signal is received, and determine a PH value of sweat contacted by the PH value detection member according to the first wavelength detection signal and the second wavelength detection signal.

[0020] Optionally, the light detection module further comprises:

[0021] A second photoelectric sensor is arranged on the device body, and the second photoelectric sensor is electrically connected with the master module.

[0022] The second photoelectric sensor is configured to detect an intensity of light irradiating on the second photoelectric sensor, and output a corresponding light intensity detection signal.

[0023] The master module is further configured to output a fault signal when the light-emitting module is controlled to emit a first light signal to human skin, and it is determined that the received light intensity detection signal does not change.

[0024] Optionally, the master module comprises a master controller and an analog front end electrically connected with the master controller; the first photoelectric sensor comprises a photoelectric diode; the light-emitting module comprises a green LED lamp, a red LED lamp, and an infrared light LED lamp; and the analog front end is electrically connected with the light-emitting module and the first photoelectric sensor, respectively.

[0025] Optionally, the number of the PH value detection pieces is multiple, and the number of the first photoelectric sensors is multiple.

[0026] Optionally, the light detection module further comprises:

[0027] A third photoelectric sensor is arranged on the device body close to the human skin, and the third photoelectric sensor is electrically connected with the master control module.

[0028] The master control module is further configured to control the light emitting module to emit a second light signal to the human skin.

[0029] The third photoelectric sensor is configured to detect the light intensity of the second light signal reflected by the human skin and output a corresponding third light intensity detection signal.

[0030] The master control module is further configured to determine the heart rate value of the human body according to the third light intensity detection signal.

[0031] Optionally, the intelligent wearable device further comprises:

[0032] A prompt component is electrically connected with the master control module.

[0033] The master control module is further configured to control the prompt component to work to prompt the user of the current PH value of the sweat.

[0034] Optionally, the number of the PH value detection pieces, the first photoelectric sensors and the third photoelectric sensors is multiple; the multiple first photoelectric sensors and the multiple third photoelectric sensors are arranged on the device body around the light emitting module; and the multiple PH value detection pieces are arranged one-to-one corresponding to the positions of the multiple first photoelectric sensors.

[0035] The intelligent wearable device comprises a device body, a PH value detection piece, a light detection module and a master control module. The PH value detection piece changes its color according to the PH value of the sweat contacted; the light detection module detects the color of the PH value detection piece and outputs a corresponding color detection signal; and the master control module determines the PH value of the sweat contacted by the PH value detection piece according to the color detection signal. Thus, in actual application, the intelligent wearable device can detect the PH value of the sweat of the user when the user wears it, meets the demand of the user for the health detection function of the intelligent wearable device, and improves the convenience and experience of the user in using the intelligent wearable device. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only show some of the embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative effort based on these drawings also belong to the protection scope of the present application.

[0037] Figure 1 Functional module schematic diagram of an embodiment of the smart wearable device of the present application;

[0038] Figure 2 Structural schematic diagram of an embodiment of the smart wearable device of the present application;

[0039] Figure 3 Functional module schematic diagram of another embodiment of the smart wearable device of the present application;

[0040] Figure 4 Functional module schematic diagram of still another embodiment of the smart wearable device of the present application;

[0041] Figure 5 Functional module schematic diagram of still another embodiment of the smart wearable device of the present application;

[0042] Figure 6 Structural schematic diagram of another embodiment of the smart wearable device of the present application.

[0043] Explanation of the reference signs:

[0044] Reference Name Reference Name 00 Device body 10 PH value detection piece 20 Light detection module 30 Master control module 21 First photoelectric sensor 22 Light emitting module 23 Second photoelectric sensor 24 Third photoelectric sensor

[0045] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the protection scope of the present application.

[0047] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0048] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] In addition, in the present application, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that the technical solutions can be realized by those skilled in the art. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0050] With the development of information industry, smart wearable devices such as smart bracelets, smart watches and the like are becoming more and more popular, especially smart wearable devices with health detection function are particularly popular, but there is no smart wearable device with direct sweat PH value detection function in the current market, which is difficult to meet the current user's demand for health detection.

[0051] Therefore, the present application provides a kind of smart wearable device, in an embodiment of the present application, reference Figures 1-2 , the smart wearable device includes:

[0052] Device main body 00;

[0053] PH value detection piece 10, PH value detection piece 10 is arranged on device main body 00 and is close to the position of human skin, PH value detection piece 10 will change its color according to the PH value of the sweat contacted;

[0054] Light detection module 20, light detection module 20 is arranged on device main body 00, light detection module 20 is used to detect the color of PH value detection piece 10, and output corresponding color detection signal;

[0055] Master module 30, master module 30 is arranged in device main body 00, master module 30 and light detection module 20 are electrically connected, master module 30 is used to determine the PH value of the sweat contacted by PH value detection piece 10 according to color detection signal.

[0056] In the embodiment, the smart device can be a smart watch, a smart arm ring, a smart bracelet, smart glasses, etc., and the device body 00 can be a smart watch dial, a watchband, a smart arm ring, a smart glasses leg, etc.

[0057] In the embodiment, the PH value detection piece 10 can be directly pasted on the position of the device body 00 that is close to the human skin by using glue or an adhesive, and optionally, the device body 00 is provided with an opening at the position close to the user, and the PH value detection piece 10 can be directly embedded in the opening. In this way, when the user wears the smart wearable device, the PH value detection piece 10 can be close to the skin of the user to contact the sweat of the user. Optionally, the material of the PH value detection piece 10 can be polyaniline polymer. The polyaniline polymer is a kind of high molecular special material, which can change color when contacting with different PH value liquids, and has a long service life, which can meet the use time requirement of the user.

[0058] In the embodiment, the reference Figure 3 In the embodiment, the light detection module 20 includes:

[0059] The first photoelectric sensor 21 is arranged on the device body 00 at the position corresponding to the PH value detection piece 10, and the first photoelectric sensor 21 is electrically connected with the main control module 30;

[0060] The light emitting module 22 is arranged on the device body 00 at the position facing the human skin, and the light emitting module 22 is electrically connected with the main control module 30;

[0061] The main control module 30 is used for controlling the light emitting module 22 to emit a first light signal to the human skin, so that the first light signal is reflected by the human skin, penetrates the PH value detection piece 10, and irradiates on the first photoelectric sensor 21;

[0062] The first photoelectric sensor 21 is used for detecting the wavelength of the first light signal penetrating the PH value detection piece 10, and outputting a corresponding first wavelength detection signal; wherein the color detection signal is the first wavelength detection signal;

[0063] The main control module 30 is also used for determining the color of the PH value detection piece 10 according to the wavelength detection signal, and determining the PH value of the sweat contacted by the PH value detection piece 10 according to the color of the PH value detection piece 10.

[0064] It can be understood that in the embodiment, the light-emitting module 22 can be composed of an RGB lamp or the like, and the color of the first light signal can be set by the developer according to the requirements. Optionally, the color can be white or green. Since the PH value detection piece 10 itself does not emit light, external light is needed to determine its color. Therefore, after the first light signal emitted by the light-emitting module 22 is reflected by the human skin, it can pass through the PH value detection piece 10. At this time, the color of the first light signal passing through the PH value detection piece 10 will change due to its original color (i.e. the color of the first light signal emitted by the light-emitting module 22) and the color of the PH value detection piece 10, and will be irradiated on the first photosensor 21. In other words, as long as the color of the first light signal is fixed, the color of the first light signal passing through the PH value detection piece 10 (i.e. the PH value detection piece 10 contacting the liquid with different PH values) will also be different, and each color corresponds to the actual color of the PH value detection piece 10.

[0065] In the embodiment, the first photosensor 21 can be implemented by a photodiode, a wavelength detection sensor or the like. The first photosensor 21 can convert the wavelength of the received light signal into a corresponding electrical signal and output, that is, output the first wavelength detection signal. The master control module 30 can determine the color of the light signal currently irradiated on the photodiode according to the first wavelength detection signal output by the wavelength detection sensor, and then determine the actual color of the PH value detection piece 10 according to the preset light signal color-PH value detection piece 10 actual color mapping table, and then call the pre-stored PH value detection piece 10 color-PH value mapping table to finally determine the PH value of the sweat contacted by the current PH value detection piece 10.

[0066] The light signal color-PH value detection piece 10 actual color mapping table can be obtained by the developer through multiple experiments during the development. Specifically, a first light signal with a preset color is used to penetrate the PH value detection piece 10 with different PH values, and then the color passing through the PH value detection piece 10 is collected and recorded. The above light signal color-PH value detection piece 10 actual color mapping table is obtained by repeating the above process. The PH value detection piece 10 color-PH value mapping table can be set by the developer according to the material selection of the PH value detection piece 10.

[0067] It can be understood that in another embodiment, the color of the first light signal emitted by the light emitting module is fixed, so the researchers can directly preset the light signal color-PH value mapping table in the master control module according to the above experimental process, so that the master control module directly determines the pH value of the sweat contacted by the current pH value detection element according to the preset light signal color-PH value mapping table after determining the color of the light signal currently irradiated on the photodiode according to the first wavelength detection signal, thereby simplifying the number of corresponding execution program codes and improving the execution speed of the program.

[0068] Therefore, in actual application, the intelligent wearable device of the present application can detect the pH value of the sweat of the user when the user wears it, meet the needs of the user for the health detection function of the intelligent wearable device, and improve the convenience and experience of the user using the intelligent wearable device.

[0069] Optionally, the number of PH value detection elements 10 is multiple, and the number of first photoelectric sensors 21 is multiple. The light emitting module 22 can be arranged on the device body 00 at a position facing the human skin. Referring to Figure 2 For example, the device body 00 is a watch dial, a plurality of PH value detection elements 10 can be arranged at the bottom of the dial, and a light emitting opening corresponding to the light emitting position of the light emitting module 22 can be arranged on the dial, and a detection port corresponding to the first photoelectric sensor 21 can be arranged at the position of the PH value detection element 10, so that the first light signal emitted by the light emitting module 22 passes through the plurality of PH value detection elements 10 and enters the detection port after being reflected by the human skin to irradiate on the corresponding first photoelectric sensor 21. The master control module 30 can determine a plurality of sweat pH values according to a plurality of first wavelength detection signals, and determine the final user sweat pH value according to a certain preset algorithm, such as average calculation, to improve the accuracy of the user sweat pH value detection.

[0070] The intelligent wearable device of the present application includes a device body 00, a PH value detection element 10, a light detection module 20, and a master control module 30. The PH value detection element 10 changes its color according to the pH value of the sweat contacted; the light detection module 20 is used to detect the color of the PH value detection element 10 and output a corresponding color detection signal; the master control module 30 is used to determine the pH value of the sweat contacted by the PH value detection element 10 according to the color detection signal. Therefore, in actual application, the intelligent wearable device of the present application can detect the pH value of the sweat of the user when the user wears it, meet the needs of the user for the health detection function of the intelligent wearable device, and improve the convenience and experience of the user using the intelligent wearable device.

[0071] In an embodiment of the present application, the main control module 30 comprises a main controller and an analog front end electrically connected to the main controller; the first photoelectric sensor 21 comprises a photoelectric diode; the light-emitting module 22 comprises a green LED lamp, a red LED lamp and an infrared LED lamp; and the analog front end is electrically connected to the light-emitting module 22 and the first photoelectric sensor 21 respectively.

[0072] In the embodiment, the main controller can be implemented by using an MCU, a DSP (Digital Signal Process), an FPGA (Field Programmable Gate Array) or the like. The analog front end can be implemented by using a special analog front end chip for biological detection, such as an AFE4404 chip. The analog front end can not only drive the above-mentioned LED lamps to work under the control of the main controller, but also receive the current value output by the photoelectric diode, convert it into a corresponding voltage value and output the current detection signal in the form of a digital signal, such as an SPI signal, an I 2 C signal or the like, to the main controller. It can be understood that the use of the analog front end chip can effectively reduce the number of driving chips and current detection devices in the circuit, reduce the wiring area of the circuit and thus simplify the structure of the device main body 00.

[0073] Specifically, it can be understood that the longer the wavelength of the light signal irradiated on the photoelectric diode, the greater the current output by the photoelectric diode. The main controller determines the current value output by the photoelectric diode according to the current detection signal transmitted by the analog front end, determines the color of the light signal currently irradiated on the photoelectric diode according to the current value output by the photoelectric diode and a preset current value-wavelength mapping table, and determines the PH value of the current user's sweat according to the process of the above-mentioned embodiment. The preset current value-wavelength mapping table can be set by the R&D personnel according to the selection and specification book content of the photoelectric diode and saved in the main controller.

[0074] It needs to be understood that, according to the above, the smart wearable device determines the color of the PH value detection piece 10 by identifying the wavelength of the first light signal passing through the PH value detection piece 10. In an ideal state, the color of the first light signal emitted is known, so the master control module 30 can directly determine the actual color of the PH value detection piece 10 according to the color of the light signal passing through the PH value detection piece 10 according to the above light signal color-PH value detection piece 10 actual color mapping table. However, when the user wears the smart wearable device, the device main body 00 cannot be guaranteed to be completely close to the human skin to create a closed environment without light leakage. Therefore, the actual first light signal passing through the first light signal will be easily affected by the ambient light, resulting in that the wavelength of the first light signal to be passed through the PH value detection piece 10 is not the wavelength of the first light signal emitted by the light-emitting module 22, and finally causing the detection result to deviate.

[0075] For this purpose, with reference to Figure 3 In an embodiment of the present application, the master control module 30 also has a signal input end for accessing the PH value detection trigger signal;

[0076] The master control module 30 is also used to control the light-emitting module 22 to stop working when the PH value detection trigger signal is not received;

[0077] The first photoelectric sensor 21 is also used to detect the wavelength of the ambient light passing through the PH value detection piece;

[0078] The master control module 30 is also used to control the light-emitting module 22 to emit the first light signal to the human skin when the PH value detection trigger signal is received, and to determine the PH value of the sweat contacted by the PH value detection piece 10 according to the first wavelength detection signal and the second wavelength detection signal.

[0079] In this embodiment, the smart wearable device can also be provided with a user trigger module connected to the signal input end of the master control module 30, such as a user voice module, a key module, a touch module, an interactive module, etc. Optionally, the user can trigger the user trigger module once when he needs to measure the PH value of the sweat, so that the user trigger module outputs a PH value detection trigger signal once, so that the master control module 30 determines that the user currently has the demand for measuring the PH value of the sweat; Optionally, the user can also set on the user trigger module to output a PH value detection trigger signal every interval, for example, output a PH value detection trigger signal every 0.5S. So that the master control module 30 continuously confirms the current sweat PH value.

[0080] It can be understood that the first photoelectric sensor 21 outputs a corresponding wavelength detection signal according to the wavelength of the light signal irradiated thereon at any time, and therefore, the light emitting module 22 is not controlled to emit light when the master control module 30 does not receive the PH value detection trigger signal, that is, at the moment, the second wavelength detection signal output by the first photoelectric sensor is the wavelength of the light signal after the ambient light passes through the PH value detection piece. In other words, the master control module 30 determines the wavelength of the current ambient light passing through the PH value detection piece in real time when there is no need to detect the sweat PH value, that is, there is no need to control the light emitting module 22 to emit light, and determines the color of the actual PH value detection piece 10 according to the first wavelength detection signal and the second wavelength detection signal received before when the sweat PH value needs to be detected.

[0081] Specifically, still taking the first photoelectric sensor 21 as an example in the above embodiment, when the master controller determines that there is no need to perform PH value detection, the current signal output by the first photoelectric sensor 21 is output to the master controller after being processed by the analog front end, and the master controller sets the current value as the ambient light-light signal wavelength current value. When the master controller determines that PH value detection is needed, the current value output by the first photoelectric sensor 21 is determined according to the detection result from the analog front end at the moment, and is processed with the ambient light-light signal wavelength current value to determine the color of the first light signal actually passing through the PH value detection piece 10. In this way, in actual application, the intelligent wearable device can eliminate the interference of ambient light on sweat PH value detection, effectively improving the accuracy of sweat PH value detection.

[0082] In addition, as can be known from the above, the intelligent wearable device can correct the influence of ambient light during sweat PH value detection, but if the light emitting module 22 fails or other circuits in the circuit fail, so that the light emitting module 22 does not emit the first light signal, the master control module 30 will also process the ambient light according to the process in the above embodiment when processing, which will result in completely wrong sweat PH value.

[0083] Therefore, with reference to Figure 4 In an embodiment of the present application, the light detection module 20 comprises:

[0084] The second photoelectric sensor 23 is arranged on the device main body 00, and the second photoelectric sensor 23 is electrically connected with the master control module 30.

[0085] The second photoelectric sensor 23 is arranged on the device main body 00, and the second photoelectric sensor 23 is electrically connected with the master control module 30.

[0086] The master control module 30 is also configured to output a fault signal when the light-emitting module 22 emits the first light signal to the human skin and it is determined that the received light intensity detection signal does not change.

[0087] In the embodiment, the second photoelectric sensor 23 can also be arranged on the device body 00 in close contact with the user's skin and at a distance from the PH value detection member 10, so that the light irradiated thereon is not affected by the PH value detection member 10. Alternatively, the second photoelectric sensor 23 can be composed of a photoresistor and a fixed resistance value resistor, the photoresistor changes the resistance value with the light intensity of the light signal irradiated thereon, so that the master controller can determine the resistance value of the photoresistor and the resistance value ratio of the fixed resistance value circuit according to the voltage value of the voltage signal output by the voltage dividing circuit and the voltage value of the power supply end, and then determine the resistance value of the photoresistor, and determine the light intensity of the light signal irradiated on the photoresistor according to the preset photoresistor resistance value-light intensity mapping table; alternatively, the second photoelectric sensor 23 can also be implemented by using a light intensity sensor, which detects the light intensity of the light signal irradiated thereon and converts it into an electrical signal, and outputs the light intensity detection signal in the form of an analog signal or a digital signal to the master control module 30, so that the master control module 30 confirms the current light intensity of the light signal.

[0088] As can be seen from the above, when the master control module 30 confirms that the PH value detection trigger signal is received, i.e. the master control module 30 determines that the sweat PH value of the user needs to be detected, the light-emitting module 22 is controlled to start emitting light. It can be understood that when the light-emitting module 22 does not emit light, the light intensity detection signal detected and output by the second photoelectric sensor 23 at this time is the light intensity of the ambient light, and when the light-emitting module 22 starts emitting light, the first light signal emitted by the light-emitting module 22 will inevitably cause the result detected by the second photoelectric sensor 23 to change. Therefore, if the master control module 30 controls the light-emitting module to detect the sweat PH value, if the received light intensity detection signal does not change, the master control module 30 can confirm that the light-emitting module 22 may have a fault, and will output a fault prompt signal to the prompt assembly or to an external terminal through the communication assembly to prompt the user of the current fault. In this way, through the above arrangement, the intelligent wearable device can realize self-checking of whether the light-emitting module 22 is working normally, and timely remind the user to repair when the light-emitting module 22 fails.

[0089] Further, it can be understood that in another embodiment, the master module 30 also has an ambient light signal input end for accessing an ambient light detection signal. Optionally, a plurality of first photoelectric sensors 21 can also be arranged in the device body of the smart wearable device, and no PH value detection member is arranged at a position of the device body corresponding to one or more of the first photoelectric sensors 21, so that ambient light can directly irradiate on the first photoelectric sensor 21, so that the first photoelectric sensor 21 detects the wavelength of the ambient light and outputs a corresponding ambient light wavelength detection signal to the master module 30. In this way, the master module 30 obtains the wavelength of the current ambient light and the color of the ambient light. At this time, if the light-emitting assembly fails, then the first wavelength detection signal output by the first photoelectric sensor is the color of the ambient light irradiated on the first photoelectric sensor through the PH value detection member. Then, the master module determines that the light-emitting module fails, and no longer executes the program for eliminating light interference in the above embodiment, but directly determines the color of the light signal of the ambient light after passing through the PH value detection member according to the first wavelength detection signal. Since the color of the ambient light is known, the master module 30 can determine the PH value of the sweat in contact with the PH value detection member according to the ambient light color-light signal color-PH value mapping table preexisting in the master module or in the cloud server. In this way, when the light-emitting module fails, the smart wearable device of the present application can also detect the PH value of the sweat of the user by using ambient light, effectively improving the convenience of use of the user.

[0090] Reference Figure 5 In an embodiment of the present application, the light detection module 20 further comprises:

[0091] a third photoelectric sensor 24, the third photoelectric sensor 24 being arranged on the device body 00 at a position close to the skin of the human body, and the third photoelectric sensor 24 being electrically connected to the master module 30;

[0092] the master module 30 is also used for controlling the light-emitting module 22 to emit a second light signal to the skin of the human body;

[0093] the third photoelectric sensor 24 is used for detecting the light intensity of the second light signal reflected by the skin of the human body and outputting a corresponding third light intensity detection signal;

[0094] the master module 30 is also used for determining the heart rate value of the human body according to the third light intensity detection signal.

[0095] In the present embodiment, the master module 30 can also control the light-emitting module 22 to emit a second light signal to the skin of the human body to realize the detection of the heart rate when receiving a heart rate detection trigger signal, as in the above embodiment. The second light signal can be green light or the same signal as the first light signal, so as to realize the simultaneous detection of the PH value of the sweat of the human body and the heart rate value.

[0096] In the embodiment, the third photoelectric sensor 24 can be implemented by using the same circuit scheme as the second photoelectric sensor 23. Specifically, when the master module 30 determines that the heart rate value of the user needs to be detected, the master module 30 can control the light-emitting module 22 to emit a second light signal, and the second light signal can be reflected by the skin and the light intensity of the reflected second light signal can be detected by the third photoelectric sensor 24. Since the human heart beats periodically, the third light intensity detection signal received and output by the third photoelectric sensor 24 is also a pulse signal and changes periodically. The master module 30 can determine the heart rate value of the human body according to the signal intensity of the second light signal emitted by the light-emitting module 22 (which is a known quantity preset in advance) and the light intensity of the light signal received by the third photoelectric sensor 24 determined according to the third light intensity detection signal.

[0097] Alternatively, the third photoelectric sensor 24 in the embodiment can be the same sensor as the second photoelectric sensor 23 in the above embodiment. Similarly, the second (third) photoelectric sensor can also be arranged in multiple to output multiple light intensity detection results to the master controller, thereby improving the accuracy of the light intensity detection of the smart wearable device. Specifically, referring to Figure 6 , the number of the PH value detection pieces 10, the first photoelectric sensors 21, and the third photoelectric sensors 24 is multiple; the multiple first photoelectric sensors 21 and the multiple third photoelectric sensors 24 are arranged around the light-emitting module 22 on the device main body 00; and the multiple PH value detection pieces 10 are arranged one-to-one corresponding to the positions of the multiple first photoelectric sensors. The first photoelectric sensors 21 and the third photoelectric sensors 24 can be arranged around the light-emitting module 22 at intervals, and each first photoelectric sensor 21 is provided with a PH value detection piece 10 at the position corresponding thereto.

[0098] In addition, it can be understood that the light-emitting module 22 can also emit a third light signal, and the third light signal can be a light mixed signal of a red light signal and an infrared light signal. The third photoelectric sensor can be used to detect the light intensity of the red light signal and the light intensity of the infrared light signal reflected by the human body, respectively, and output the detection results to the master module. The master module 30 can calculate the blood oxygen value of the current user according to the light intensity difference of the infrared light signal and the red light signal when emitting and receiving. In this way, in actual application, the smart wearable device can not only detect the PH value of the sweat of the user, but also can detect the heart rate and the blood oxygen value of the user, and can use the same set of light-emitting module 22 and photoelectric sensor when realizing the three functions. This improves the compatibility and diversification of the health function detection of the smart wearable device, reduces the area of the circuit layout in the smart wearable device, and simplifies the structure of the smart wearable device.

[0099] In an embodiment of the present application, the smart wearable device further comprises:

[0100] The prompting component is electrically connected with the master control module 30.

[0101] The master control module 30 is further configured to control the prompting component to prompt the user of the current PH value of the sweat.

[0102] In the embodiment, the prompting component can be a display screen, which is arranged on the device body 00, for example, on the dial of a smart watch. The master control module 30 can control the display screen to display the current detected PH value of the sweat of the human body. Alternatively, the prompting component can also be implemented by using a voice component. The master control module 30 can control the voice component to emit a voice representing the current PH value of the sweat of the user, for example, the current PH value of the sweat is 7.2. After confirming the PH value of the sweat of the user, the master control module 30 can control the voice component to emit a voice signal of "the current PH value of the sweat is 7.2".

[0103] It can be understood that the master control module 30 can also be preconfigured with a PH value-prompting content mapping table by the developer in advance, so that the master control module 30 can control the prompting component to prompt the user with corresponding content according to the current PH value of the sweat of the user. For example, when the master control module 30 confirms that the PH value of the sweat of the user is higher than 10, the master control module 30 can control the prompting component to prompt the user to supplement the sugar in an appropriate amount, and find that the hypoglycemia occurs. In this way, in actual application, the smart wearable device can not only detect the current PH value of the sweat of the user, but also give corresponding health advice according to the current PH value of the sweat of the user, which further improves the convenience and experience of the user.

[0104] In an embodiment of the present application, the smart wearable device further comprises:

[0105] The wearing detection module is arranged in the device body 00 and electrically connected with the master control module 30. The wearing detection module is configured to detect the wearing state of the device body 00 and output a corresponding wearing detection signal.

[0106] The master control module 30 is further configured to control itself to enter a sleep state when it is determined according to the wearing detection signal that the device body 00 is not worn on the human body.

[0107] In the embodiment, the wearing detection module can be implemented by using an acceleration detection sensor, an infrared sensor, etc. The wearing detection module can detect whether the smart wearable device is in a state of being worn by a human body, and output the detection result in the form of an analog signal or a digital signal, for example, an SPI signal, an I 2The C signal and the like are transmitted to the master module 30 in the form of a signal, and the master module 30 can determine whether the current user is in a wearing state according to the detection result from the wearing detection module. If the master module 30 confirms that the device is not in a wearing state, the master module 30 will control itself to enter a sleep state, and if a PH value detection trigger signal is received at this time, the above detection process will not be performed, thereby reducing the power consumption of the device.

[0108] Specifically, the wearing detection module is taken as an infrared sensor as an example for description. The current wearing detection module is an infrared sensor arranged close to the skin of the user on the dial. The emission end of the infrared sensor outputs an infrared light signal. If the user currently wears the device, the human skin can reflect the infrared light signal back to the receiving end of the infrared sensor. When the receiving end of the infrared sensor receives the reflected infrared light signal, the receiving end outputs a wearing signal to the master module 30. If the receiving end of the infrared sensor does not receive the infrared light signal, the receiving end outputs a non-wearing signal. When the master module 30 receives the non-wearing signal, the master module 30 enters a sleep state to reduce its power consumption, thereby improving the actual endurance time of the smart device.

[0109] The above is only an optional embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields, or the like within the concept of the present application, using the content of the present application specification and drawings, is included in the patent protection scope of the present application.

Claims

1. A smart wearable device, characterized in that, The smart wearable device includes: Equipment body; A pH value measuring device is installed on the main body of the device in close contact with human skin. The pH value measuring device changes its color according to the pH value of the sweat it comes into contact with. A light detection module is disposed on the main body of the device. The light detection module is used to detect the color of the pH value detection element and output a corresponding color detection signal. The main control module is located inside the main body of the device and is electrically connected to the light detection module. The main control module is used to determine the pH value of the sweat that the pH value detection element comes into contact with based on the color detection signal. The light detection module includes: a light-emitting module, a first photoelectric sensor positioned corresponding to the pH value detection element, and a second photoelectric sensor positioned at a certain distance from the pH value detection element; The main control module is used to control the light-emitting module to emit a first light signal to human skin so that it is reflected by human skin and then penetrates the pH value detection element to illuminate the first photoelectric sensor. The first photoelectric sensor is used to detect the wavelength of the first light signal that penetrates the pH value detection element and output a corresponding first wavelength detection signal; it is also used to detect the wavelength of ambient light that penetrates the pH value detection element and output a corresponding second wavelength detection signal when the light-emitting module is not in working state. The second photoelectric sensor is used to detect the intensity of light shining on itself and output a corresponding light intensity detection signal; The main control module is also used to determine the pH value of the sweat that the pH value detection device comes into contact with based on the second wavelength detection signal when the received light intensity detection signal has not changed. The main control module is also used to control the light-emitting module to emit a first light signal to human skin and, when the received light intensity detection signal changes, determine the pH value of the sweat that the pH value detection device comes into contact with based on the first wavelength detection signal and the second wavelength detection signal.

2. The smart wearable device as described in claim 1, characterized in that, The pH value measuring device is made of polyaniline polymer.

3. The smart wearable device as described in claim 1, characterized in that, The main control module also has a signal input terminal for receiving the pH value detection trigger signal; The main control module is also used to control the light-emitting module to stop working when it does not receive the pH value detection trigger signal; The main control module is also used to control the light-emitting module to emit a first light signal to human skin when it receives the pH value detection trigger signal.

4. The smart wearable device as described in claim 1, characterized in that, The main control module is also used to output a fault signal when controlling the light-emitting module to emit a first light signal to human skin and determining that the received light intensity detection signal has not changed.

5. The smart wearable device as described in claim 1, characterized in that, The main control module includes a main controller and an analog front-end electrically connected to the main controller; the first photoelectric sensor includes a photodiode; the light-emitting module includes a green LED, a red LED, and an infrared LED; the analog front-end is electrically connected to the light-emitting module and the first photoelectric sensor respectively.

6. The smart wearable device as described in claim 1, characterized in that, The number of pH value detection devices is multiple, and the number of the first photoelectric sensors is multiple.

7. The smart wearable device as described in claim 1, characterized in that, The optical detection module also includes: The third photoelectric sensor is disposed on the main body of the device in close contact with human skin, and the third photoelectric sensor is electrically connected to the main control module; The main control module is also used to control the light-emitting module to emit a second light signal to human skin; The third photoelectric sensor is used to detect the light intensity of the second light signal reflected by human skin and output a corresponding third light intensity detection signal. The main control module is also used to determine the human heart rate value based on the third light intensity detection signal.

8. The smart wearable device as described in claim 1, characterized in that, The smart wearable device also includes: A prompting component, which is electrically connected to the main control module; The main control module is also used to control the operation of the prompting component to prompt the user about the current pH value of sweat.

9. The smart wearable device as described in claim 7, characterized in that, The number of pH value detection devices, the first photoelectric sensor, and the third photoelectric sensor are all multiple; the multiple first photoelectric sensors and the multiple third photoelectric sensors are arranged around the light-emitting module on the main body of the device; the multiple pH value detection devices are respectively arranged in a one-to-one correspondence with the positions of the multiple first photoelectric sensors.

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