CN112315465A - Alcohol detection ring and alcohol detection method - Google Patents
Alcohol detection ring and alcohol detection method Download PDFInfo
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- CN112315465A CN112315465A CN202011148073.7A CN202011148073A CN112315465A CN 112315465 A CN112315465 A CN 112315465A CN 202011148073 A CN202011148073 A CN 202011148073A CN 112315465 A CN112315465 A CN 112315465A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0075—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6825—Hand
- A61B5/6826—Finger
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/7405—Details of notification to user or communication with user or patient ; user input means using sound
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/7455—Details of notification to user or communication with user or patient ; user input means characterised by tactile indication, e.g. vibration or electrical stimulation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/746—Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
Abstract
The invention discloses an alcohol detection ring and an alcohol detection method, wherein the alcohol detection ring comprises: the finger ring comprises a finger ring body, and a body temperature detection module, an alcohol detection module and a processor which are arranged on the finger ring body, wherein the body temperature detection module and the alcohol detection module are respectively connected with the processor; the body temperature detection module is used for detecting the body temperature of a wearer; the alcohol detection module is used for emitting light to the fingers of the wearer and receiving the reflected light; and the processor is used for picking up the reflected light intensity of the alcohol detection module, prompting when the reflected light intensity reaches the warning threshold value, and correcting the warning threshold value according to the body temperature change rate of the wearer when drinking. The method utilizes the reflection principle to judge whether the drinker reaches the drinking warning value according to the intensity of the reflected light, and sets a temperature sensor aiming at the problem that the alcohol sensitivity is different from person to person, and corrects the drinking warning threshold value by utilizing the body temperature change rate of the wearer so as to be suitable for each specific wearer.
Description
Technical Field
The invention relates to the technical field of in-vivo alcohol detection, in particular to an alcohol detection ring and an alcohol detection method.
Background
The harm to the body caused by excessive drinking is great, and cardiovascular and cerebrovascular diseases such as hypertension, coronary heart disease, cerebral infarction, cerebral hemorrhage and the like can be caused; also can cause the abnormality of the digestive tract, and people who drink excessive alcohol are easy to have esophagitis, gastritis, even esophageal ulcer, gastric ulcer and the like; the liver is affected, liver dysfunction is easy to cause by excessive drinking, and serious even alcoholic liver disease, alcoholic cirrhosis and the like occur. If drinking too much, it may cause abnormalities in the vision, etc. or in the peripheral blood vessels and nerves of the eyes.
Therefore, excessive drinking is extremely harmful and basically harmful to the whole body, so that excessive drinking should be avoided as much as possible. However, many people are happy and feel that they can drink, but the body has reached the limit, thereby causing physical damage, and therefore, the information of alcohol bearing capacity of their body cannot be obtained, which becomes a factor of drinking and hurting the body.
Disclosure of Invention
In view of the problem that people in the prior art easily overlook the bearing capacity of the body to alcohol and drink too much, the alcohol detection ring and the alcohol detection method are provided so as to overcome the problem.
In order to achieve the purpose, the following technical scheme is adopted in the application:
according to an aspect of the present application, there is provided an alcohol detection ring, including: the finger ring comprises a finger ring body, and a body temperature detection module, an alcohol detection module and a processor which are arranged on the finger ring body, wherein the body temperature detection module and the alcohol detection module are respectively connected with the processor;
the body temperature detection module is used for detecting the body temperature of a wearer;
the alcohol detection module is used for emitting light to the fingers of the wearer and receiving the reflected light;
and the processor is used for picking up the reflected light intensity of the alcohol detection module, prompting when the reflected light intensity reaches the warning threshold value, and correcting the warning threshold value according to the body temperature change rate of the wearer when drinking.
Optionally, the light emitted by the alcohol detection module is near infrared light; alternatively, the alcohol detection module emits light at a wavelength of 660nm or 940 nm.
Optionally, the alcohol detection module comprises: a light emitter and a light receiver;
light emitter and light receiver interval set up in the inboard of ring body, are provided with opaque loudspeaker form cavity respectively around light emitter and light receiver, and the open end of loudspeaker form cavity is provided with transparent cover.
Optionally, the inner surface of the horn-shaped cavity is a light reflecting surface.
Optionally, the processor is specifically configured to: according to the change rate of the body temperature of the wearer after drinking, the turning moment when the body temperature of the wearer changes from rising to falling after drinking is judged, and the intensity of the reflected light at the moment is used as an alert threshold value.
Optionally, the alcohol detection ring further comprises: and the memory module is connected with the processor and is used for storing the warning threshold value.
Optionally, the alcohol detection ring further comprises: the switch module is connected with the processor and used for starting the alcohol detection ring;
after the alcohol detection ring is started, the alcohol detection module starts to continuously send and receive light.
Optionally, the alcohol detection ring further comprises: and the display reminding module, the vibration reminding module and the sound reminding module are one or more of.
According to another aspect of the present application, there is provided an alcohol detection method, including:
emitting light to the fingers of the wearer and receiving the reflected light;
picking up the intensity of the reflected light, and prompting when the intensity of the reflected light reaches an alert threshold;
the alert threshold is modified according to the rate of change of body temperature of the wearer when drinking.
Optionally, modifying the alert threshold based on the rate of change of body temperature of the wearer when drinking comprises:
according to the change rate of the body temperature of the wearer after drinking, the turning moment when the body temperature of the wearer changes from rising to falling after drinking is judged, and the intensity of the reflected light at the moment is used as an alert threshold value.
To sum up, the beneficial effect of this application is:
the principle that hemoglobin changes the light reflectivity after drinking is utilized, light is emitted through fingers of a drinker, reflected light is received, whether the drinker reaches a drinking warning value or not is judged according to the intensity of the reflected light, and a temperature sensor is arranged aiming at the problem that the alcohol sensitivity varies from person to person.
Drawings
FIG. 1 is a schematic diagram of a system for detecting alcohol in a finger ring according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a system for detecting alcohol in a finger ring according to another embodiment of the present disclosure;
FIG. 3 is a schematic cross-sectional view of a ring of an alcohol detection ring according to an embodiment of the present disclosure;
figures 4-5 illustrate a ring cross-sectional view of an alcohol detection ring according to another embodiment of the present application;
FIG. 6 is a schematic view of a workflow of an alcohol detection ring according to an embodiment of the present application;
FIG. 7 is a schematic flow chart of a method for alcohol detection according to an embodiment of the present disclosure;
in the figure: the ring body 100, the body temperature detecting module 110, the alcohol detecting module 120, the light emitter 121, the light receiver 122, the processor 130, the display reminding module 140, the vibration reminding module 150, the memory module 160, the switch module 170, the horn-shaped cavity 210, the transparent cover plate 211 and the reflecting surface 212.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The technical idea of the application is as follows: the principle that hemoglobin changes the light reflectivity due to the rise of the alcohol content in the blood of a human body after drinking is utilized, light is emitted to the fingers of a drinker and received, and whether the drinker reaches a drinking warning value or not is judged according to the intensity of the reflected light. Moreover, aiming at the problem that different people have different alcohol sensitivities, the temperature sensor is arranged, and the drinking warning threshold value is corrected by utilizing the body temperature change rate of the wearer when drinking so as to be suitable for each specific wearer, thereby solving the problem that people cannot clearly know the drinking capacity of the wearer.
Fig. 1 is a schematic diagram showing a system configuration of an alcohol detection ring according to an embodiment of the present application. As shown in fig. 1, the alcohol detection ring includes: the finger ring comprises a finger ring body 100, and a body temperature detection module 110, an alcohol detection module 120 and a processor 130 which are arranged on the finger ring body 100, wherein the body temperature detection module 110 and the alcohol detection module 120 are respectively connected with the processor 130.
A body temperature detection module 110 for detecting the body temperature of the wearer; therefore, the processor 130 can obtain the body temperature change rate of the wearer according to the body temperature data measured by the body temperature detection module 110, and the body temperature change rate can be used for correcting the detection process of the alcohol detection ring.
The alcohol detection module 120 is configured to emit light to the finger of the wearer and receive the reflected light.
Since drinking affects the color of hemoglobin in blood and the absorption of hemoglobin into light, the change in the alcohol content in blood can be determined by providing the ring body 100 with the alcohol detection module 120 using light as a medium, by using near infrared light that can penetrate the skin and penetrate into subcutaneous tissue, etc. Moreover, this application is selected to carry out the transmission and the receipt of light in finger department, because finger tip skin is thinner, and capillary blood distributes abundantly, and other blood components are less like the interference of cytochrome, base blood cell element, can satisfy the needs that hemoglobin detected, show the promotion alcohol detection degree of accuracy.
And a processor 130 for picking up the intensity of the reflected light from the alcohol detection module 120, prompting when the intensity of the reflected light reaches the alert threshold, and for correcting the alert threshold according to the rate of change of the body temperature of the wearer when drinking.
Through the alcohol detection ring of this embodiment, can utilize the receipt and the reflection of light, measure the alcohol content in the blood that flows through the finger fast to acquire drinker drinking information, warn and remind. Moreover, aiming at the problem that the alcohol sensitivity varies from person to person, the finger ring is further provided with the body temperature detection module 110, the alcohol sensitivity of a specific wearer is determined by utilizing the body temperature change of the human body after drinking, the warning threshold value is corrected, and the finger end alcohol detection accuracy is higher and the applicability is stronger.
Specifically, in one embodiment of the present application, the alcohol content alert threshold is modified by detecting a low temperature response of the person after drinking alcohol. Relevant studies show that after drinking, human body can generate low-temperature reaction, namely: after the alcohol is taken, the body temperature of a human body is rapidly reduced after being temporarily increased, and the body temperature is reduced more rapidly when the intake amount is larger. Different people have different sensitivity degrees to alcohol, and the low-temperature reaction after drinking the wine is different. Thus, the present application uses the low temperature response data for the correction of the alcohol warning threshold. The processor 130 is specifically configured to: according to the change rate of the body temperature of the wearer after drinking, the turning moment when the body temperature of the wearer changes from rising to falling after drinking is judged, and the intensity of the reflected light at the moment is used as an alert threshold value. At this moment, the body temperature of the drinker changes obviously, and the influence on the body is obvious, so that the content of the alcohol in the body at this moment can well represent the sensitivity/tolerance degree of the drinker to the alcohol.
The measurement of the body temperature of the drinker can be performed by the body temperature detection module 110 on the ring. The body temperature detecting module 110 detects the current body temperature T (T) of the drinker according to the fixed time interval delta T1、T2、T3、T4… …) to cause the processor 130 to calculate the corresponding rate of change of body temperature VT：
Detecting VTWhen a specific value is reached, for example, positive or negative, the processor 130 picks up and records the received light intensity L picked up at this time1By calculating the signal difference Δ L ═ L1-L0To compensate the initially set warning threshold L0And the alcohol warning threshold value adjustment of different crowds is realized.
FIG. 2 is a schematic view of another embodiment of the system of the alcohol detection ring of the present application; as shown in fig. 2, in this embodiment, the alcohol detection ring further includes: the memory module 160, the memory module 160 is connected to the processor 130, and is configured to store information such as an alert threshold.
In addition, the alcohol detection ring still includes: the switch module 170, the switch module 170 is connected with the processor 130, and is used for starting the alcohol detection ring; the alcohol detection module 120 begins to continuously send and receive light after the alcohol detection ring is activated. Through adding switch module 170, whether the accessible of wearer independently selects alcohol to detect the function and opens, improves the duration of alcohol detection ring, wears for a long time at ordinary times, also can not lead to when needing to use the electric power not enough.
In the embodiment shown in fig. 2, the alcohol detection ring further comprises: one or more of a display alert module 140, a vibratory alert module 150, and a sound alert module. Processor 130 is configured to alert by one or more of display alert module 140, vibration alert module 150, and sound alert module.
In some preferred embodiments of the present application, the light emitted by the alcohol detection module 120 is near infrared light, the wavelength of the near infrared light is 0.76 to 1.5 micrometers, the light penetrates deeper into human tissue, about 5 to 10 millimeters, and the shorter the wavelength, the higher the frequency, and the larger the energy, the larger the range of wave penetration; the longer the wavelength, the lower the frequency, and the smaller the energy, the smaller the range that the wave penetrates.
In other preferred embodiments of the present application, the wavelength of the light emitted by the alcohol detection module 120 is determined to be 660nm or 940nm, which is to adapt to the characteristics of hemoglobin, so as to further improve the accuracy of alcohol detection. Generally, the total amount of hemoglobin in a normal human body is kept stable, and the hemoglobin includes oxyhemoglobin and deoxyhemoglobin. Meanwhile, the related studies indicate: the alcohol concentration is increased from 200mg/ml to 500mg/ml, the oxyhemoglobin content is increased, as the alcohol concentration is further increased, the content of deoxyhemoglobin increases, and since there is a difference in the absorbance of light by oxyhemoglobin and deoxyhemoglobin, therefore, after drinking wine, the absorption degree of light rays can be changed along with the change of the relative content ratio of oxyhemoglobin and deoxyhemoglobin, the intensity of the light rays reflected back to the finger ring can also be changed, while the light absorption difference of oxyhemoglobin and deoxyhemoglobin is maximum at the wavelengths of 660nm and 940nm, therefore, the light with the two wavelengths is selected for irradiation, the returned light signal can be changed obviously, the alcohol detection ring can identify the state of a drinker more easily, the drinker is reminded of drinking a proper amount of alcohol in time, and body damage is reduced.
In one embodiment of the present application, as shown in FIG. 3, the alcohol detection module 120 includes: the light emitter 121 and the light receiver 122, the light emitter 121 and the light receiver 122 are arranged on the inner side of the ring body 100 at intervals, and are attached to the skin of a finger when being worn.
In another embodiment of the present application, as shown in fig. 4 and 5, the light emitter 121 and the light receiver 122 are disposed at an interval inside the ring body 100, and in order to prevent the light emitter 121 and the light receiver 122 from interfering with each other, an opaque trumpet-shaped cavity 210 is disposed around the light emitter 121 and the light receiver 122, respectively, and a transparent cover plate 211 is disposed at an open end of the trumpet-shaped cavity 210.
The inner surface of the horn-shaped cavity 210 is a reflecting surface 212, and the whole body is made of an opaque material, so that mutual interference and external interference between the light emitter 121 and the light receiver 122 are prevented, the light emitter 121 and the light receiver 122 are placed in the horn-shaped cavity 210, the inner surface of the cavity is the reflecting surface 212, and light signals can be controlled to be emitted perpendicularly to the transparent cover plate 211; meanwhile, the transparent cover plate 211 is arranged to protect the internal structure of the ring and prevent skin sweat and the like from polluting the structures such as the chip inside the ring.
FIG. 6 discloses a schematic workflow diagram of an alcohol detection ring according to an embodiment of the present application; as shown in fig. 6, first, when the wearer needs to drink alcohol, the alcohol detection function may be controlled to be turned on by the switch. After the alcohol detection function is turned on, the alcohol detection ring continuously emits and receives light, meanwhile, the processor 130 detects and judges whether the received reflected light reaches a set warning threshold value or not according to the intensity of the received light, if the received reflected light reaches the set warning threshold value, the alcohol content in the body of a drinker reaches a warning value, then the display screen is controlled to output a picture to remind the user, and meanwhile the ring vibrates to remind the user; and if the received reflected light does not reach the set threshold value, controlling the ring to continuously emit and receive light, and monitoring the body state of the user in real time. In addition, the correction function can be actively started when the user uses the alcohol detection ring, so that the alcohol detection ring records the low-temperature reaction of the user during drinking, and corrects the warning threshold according to the change rate of the body temperature after drinking, thereby acquiring the body data according with the characteristics of the user, enabling the alcohol detection result to better meet the requirements of the user, and protecting the self health.
Fig. 7 is a schematic flow chart diagram of an alcohol detection method according to an embodiment of the present application, and as shown in fig. 7, the method includes:
step S710, emitting light to the finger of the wearer and receiving the reflected light.
Step S720, picking up the intensity of the reflected light, and prompting when the intensity of the reflected light reaches the warning threshold value.
Step S730, the alert threshold is corrected according to the body temperature change rate of the wearer when drinking.
In one embodiment of the present application, the step S730 of modifying the alert threshold according to the rate of change of the body temperature of the wearer when drinking wine comprises:
according to the change rate of the body temperature of the wearer after drinking, the turning moment when the body temperature of the wearer changes from rising to falling after drinking is judged, and the intensity of the reflected light at the moment is used as an alert threshold value.
Specifically, the process of executing the method may refer to the working process of the alcohol detection ring, which is not described herein any more.
To sum up, the principle that hemoglobin changes the light reflectivity after drinking is utilized in the application, light is emitted to the fingers of a drinker, and the reflected light is received, whether the drinker reaches a drinking warning value is judged according to the intensity of the reflected light, moreover, a temperature sensor is arranged aiming at the problem that the alcohol sensitivity varies from person to person, the drinking warning threshold value is corrected by utilizing the body temperature change rate of the drinker when drinking, so that the drinker is adaptive to each specific wearer, and the problem that people cannot clearly know the drinking capability of the drinker is solved. In addition, in the preferred embodiment of the application, the wavelength and the structure of the irradiation light beam of the alcohol detection module are optimized and improved, and the accuracy of alcohol detection is improved.
While the foregoing is directed to embodiments of the present invention, other modifications and variations of the present invention may be devised by those skilled in the art in light of the above teachings. It should be understood by those skilled in the art that the foregoing detailed description is for the purpose of better explaining the present invention, and the scope of the present invention should be determined by the scope of the appended claims.
Claims (10)
1. The alcohol detection ring is characterized by comprising a ring body, and a body temperature detection module, an alcohol detection module and a processor which are arranged on the ring body, wherein the body temperature detection module and the alcohol detection module are respectively connected with the processor;
the body temperature detection module is used for detecting the body temperature of a wearer;
the alcohol detection module is used for emitting light to the fingers of the wearer and receiving reflected light;
the processor is used for picking up the reflected light intensity of the alcohol detection module, prompting when the reflected light intensity reaches a warning threshold value, and correcting the warning threshold value according to the body temperature change rate of a wearer when drinking.
2. The alcohol detection ring of claim 1, wherein the alcohol detection module emits light in the form of near infrared light; alternatively, the wavelength of the light emitted by the alcohol detection module is 660nm or 940 nm.
3. The alcohol detection ring of claim 1, wherein the alcohol detection module comprises: a light emitter and a light receiver;
the light transmitter with the light receiver interval sets up the inboard of ring body centers on the light transmitter with the light receiver is provided with opaque loudspeaker form cavity respectively, the open end of loudspeaker form cavity is provided with transparent cover.
4. The alcohol detection ring of claim 3, wherein the inner surface of the trumpet-shaped cavity is a reflective surface.
5. The alcohol detection ring of claim 1, wherein the processor is specifically configured to: and judging the turning moment when the body temperature of the wearer is changed from rising to falling after drinking according to the change rate of the body temperature of the wearer after drinking, and taking the intensity of the reflected light at the moment as the warning threshold value.
6. The alcohol detection ring of claim 1, further comprising: and the memory module is connected with the processor and is used for storing the warning threshold value.
7. The alcohol detection ring of claim 1, further comprising: the switch module is connected with the processor and used for starting the alcohol detection ring;
after the alcohol detection ring is started, the alcohol detection module starts to continuously send and receive light.
8. The alcohol detection ring of claim 1, further comprising: and the display reminding module, the vibration reminding module and the sound reminding module are one or more of.
9. An alcohol detection method, comprising:
emitting light to the fingers of the wearer and receiving the reflected light;
picking up the intensity of the reflected light, and prompting when the intensity of the reflected light reaches an alert threshold;
and correcting the alarm threshold value according to the body temperature change rate of the wearer when drinking.
10. The alcohol detection method according to claim 9, wherein said modifying the alert threshold according to the rate of change of the body temperature of the wearer when drinking alcohol comprises:
and judging the turning moment when the body temperature of the wearer is changed from rising to falling after drinking according to the change rate of the body temperature of the wearer after drinking, and taking the intensity of the reflected light at the moment as the warning threshold value.
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