Alcohol detection method and device and smart watch

Abstract

The invention discloses an alcohol detection method, an alcohol detection device and a smart watch. The alcohol detection method comprises the following steps: acquiring an air pressure difference value of an alcohol detection air path; whether the air pressure difference value in the alcohol detection air path is larger than a preset air pressure difference value or not is determined; when the air pressure difference value in the alcohol detection gas circuit is larger than a preset air pressure difference value and the duration time when the air pressure difference value is larger than the preset air pressure difference value reaches preset duration time, the alcohol concentration in the alcohol detection gas circuit is obtained, second prompt information is sent out, and the second prompt information is used for prompting the detection result of the alcohol concentration; when the air pressure difference value in the alcohol detection air path is not larger than the preset air pressure difference value, third prompt information is sent out and used for prompting a user to adjust the air blowing force and / or the air blowing direction. According to the invention, the success rate and accuracy of alcohol detection of the smart watch can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of alcohol detection for smart watches, and in particular to an alcohol detection method, device and smart watch. Background Art

[0002] Traffic safety is receiving increasing attention, but professional alcohol testers are large in size and inconvenient for traffic police and drivers and passengers to carry on a daily basis. Currently, the problem of inconvenience in carrying is solved by integrating alcohol testing functions into smart watches.

[0003] However, the smart watch with integrated alcohol detection function has a small air hole, and it is not easy for users to align the air hole for the blow test, resulting in a low success rate and accuracy of alcohol detection. Summary of the invention

[0004] The main purpose of the present invention is to provide an alcohol detection method, aiming to solve the problem of low success rate and accuracy of alcohol detection in existing smart watches.

[0005] To achieve the above object, the alcohol detection method proposed in the present invention is applied to a smart watch, wherein the smart watch includes an alcohol detection gas circuit, and the alcohol detection method includes:

[0006] Obtain the air pressure difference in the alcohol detection gas path;

[0007] Determine whether the pressure difference in the alcohol detection gas path is greater than a preset pressure difference;

[0008] When the air pressure difference in the alcohol detection gas path is greater than the preset air pressure difference, and the duration of the air pressure difference being greater than the preset air pressure difference reaches the preset duration, the alcohol concentration in the alcohol detection gas path is obtained, and a second prompt message is issued, wherein the second prompt message is used to prompt the detection result of the alcohol concentration;

[0009] When the air pressure difference in the alcohol detection air path is not greater than the preset air pressure difference, a third prompt message is issued, and the third prompt message is used to prompt the user to adjust the blowing force and / or blowing direction.

[0010] Optionally, before the step of obtaining the air pressure difference in the alcohol detection gas path, the alcohol detection method further includes:

[0011] When the alcohol detection instruction is received, a fourth prompt message is issued, and the fourth prompt message is used to prompt the user to blow towards the air inlet of the alcohol detection air circuit.

[0012] Optionally, the alcohol detection method further comprises:

[0013] When the pressure difference in the alcohol detection gas path is not greater than the preset pressure difference, determining whether the detection time in the alcohol detection gas path is greater than the preset detection time;

[0014] If the detection time is not greater than the preset detection time, a third prompt message is issued, wherein the third prompt message is used to prompt the user to adjust the blowing force and / or blowing direction;

[0015] If the detection time is greater than the preset detection time, a fifth prompt message is issued, wherein the fifth prompt message is used to prompt the user that the alcohol test has failed.

[0016] Optionally, the alcohol detection method further comprises:

[0017] When the air pressure difference is greater than the preset air pressure difference, the value of the alcohol concentration detection module is read at a preset time interval;

[0018] The steps for obtaining the alcohol concentration in the alcohol detection gas path are as follows:

[0019] The maximum value among the values ​​of the alcohol concentration detection module read within a preset duration is determined as the detection result of the alcohol concentration.

[0020] Optionally, the alcohol detection method further comprises:

[0021] When the air pressure difference is greater than the preset air pressure difference for less than the preset duration, a first prompt message is issued.

[0022] Optionally, the alcohol detection method further comprises:

[0023] If it is determined that the duration of the air pressure difference being greater than the preset air pressure difference within the preset exhalation time does not reach the preset duration, detecting the ambient wind speed of the smart watch;

[0024] Determine whether the ambient wind speed of the smart watch reaches the preset wind speed;

[0025] If the ambient wind speed of the smart watch reaches a preset wind speed, a sixth prompt message is issued, and the sixth prompt message is used to prompt the user to change the detection environment or blow air close to the air inlet of the alcohol detection gas path.

[0026] Optionally, the alcohol detection method further comprises:

[0027] If it is determined that the duration of the air pressure difference being greater than the preset air pressure difference within the preset exhalation time does not reach the preset duration, then obtaining the degree of fluctuation of the air pressure difference in the alcohol detection gas path;

[0028] Determine whether the fluctuation degree of the air pressure difference in the alcohol detection air path reaches a preset fluctuation degree;

[0029] If it is determined that the fluctuation degree of the air pressure difference in the alcohol detection air circuit reaches a preset fluctuation degree, a sixth prompt message is issued, and the sixth prompt message is used to prompt the user to change the detection environment or blow air close to the air inlet of the alcohol detection air circuit.

[0030] Optionally, the alcohol detection method further comprises:

[0031] When the air pressure difference in the alcohol detection air path is greater than a preset air pressure difference, a first prompt message is issued, wherein the first prompt message is used to prompt the user to maintain the blowing force and blowing direction.

[0032] The present invention also provides an alcohol detection device, which comprises:

[0033] Memory;

[0034] processor; and,

[0035] An alcohol detection program stored in the memory and executable on the processor, wherein: when the alcohol detection program is executed by the processor, the alcohol detection method as described above is implemented.

[0036] The present invention also provides a smart watch, which includes an alcohol detection gas circuit and the alcohol detection device as described above.

[0037] Optionally, the smart watch includes:

[0038] An alcohol detection module is connected to the alcohol detection device, and is used to detect the alcohol concentration in the alcohol detection gas path and output an alcohol concentration detection signal to the alcohol detection device.

[0039] The technical solution of the present invention allows the user to know whether the current blowing force and blowing direction meet the requirements of the alcohol detection function in a timely manner according to the prompt information issued by the smart watch when blowing towards the blowing port using the alcohol detection function of the smart watch, and can adjust the blowing force and blowing direction in time when they do not meet the requirements, so that the adjusted blowing force and blowing direction can successfully trigger the alcohol detection function of the smart watch. And when the blowing force and blowing direction of the user do not meet the requirements of the alcohol detection function, the air pressure difference in the alcohol detection air path is not greater than the preset air pressure difference, that is, the alcohol detection function implemented by the alcohol detection method of the present invention cannot be triggered, avoiding the low detection value caused by the user's blowing force and blowing direction not meeting the standards, thereby solving the problem of low success rate and accuracy of alcohol detection of existing smart watches, greatly reducing the probability of users driving under the influence of alcohol due to misjudgment of their own status, which is conducive to protecting the life safety of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0041] Figure 1 This is a schematic diagram of a process of an alcohol detection method according to an embodiment of the present invention;

[0042] Figure 2 A schematic diagram of a flow chart of another embodiment of the alcohol detection method of the present invention;

[0043] Figure 3 A schematic diagram of the hardware operating environment of an alcohol detection device according to an embodiment of the present invention;

[0044] Figure 4 Schematic diagram of a module of a smart watch according to an embodiment of the present invention.

[0045] Description of Figure Numbers:

[0046] Label name Label name 10 Motor Controller 13 Communication Bus 11 Memory 20 Alcohol detection gas line 12 processor 30 Alcohol detection module

[0047] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0050] The present invention provides an alcohol detection method which can be applied to smart watches.

[0051] Currently, smart watches with integrated alcohol detection functions require users to blow into the air port on the smart watch to realize the alcohol detection function. However, due to the small size of the air port, there are relatively strict requirements on the user's blowing force and blowing angle. If the blowing force or blowing angle does not meet the standard, the gas blown out by the user will not be able to fully enter the air port, causing the smart watch's alcohol detection function to ultimately detect a lower value, or even no value at all, resulting in a low success rate and accuracy rate of alcohol detection, which in turn causes users to often misjudge their own status based on the low alcohol value detected and drive under the influence.

[0052] For the above problems, refer to Figure 1 , the alcohol detection method comprises:

[0053] S100, obtaining the air pressure difference in the alcohol detection air path;

[0054] S200, determining whether the air pressure difference in the alcohol detection air path is greater than a preset air pressure difference;

[0055] S300, when the pressure difference in the alcohol detection gas path is greater than a preset pressure difference, and the duration of the pressure difference being greater than the preset pressure difference reaches a preset duration, the alcohol concentration in the alcohol detection gas path is obtained, and a second prompt message is issued, where the second prompt message is used to prompt the detection result of the alcohol concentration;

[0056] S400. When the air pressure difference in the alcohol detection air path is not greater than the preset air pressure difference, a third prompt message is issued, wherein the third prompt message is used to prompt the user to adjust the blowing force and blowing direction.

[0057] The executor of the alcohol detection method of the present invention may be an alcohol detection device. In the smart watch, a first air pressure detection module and a second air pressure detection module may be respectively provided on the inner and outer sides of the alcohol detection gas path, wherein the first air pressure detection module is used to detect the air pressure of the alcohol detection gas path and output a first air pressure detection signal to the alcohol detection device; the second air pressure detection module is used to detect the air pressure outside the alcohol detection gas path and output a second air pressure detection signal to the alcohol detection device. The alcohol detection device may convert the first air pressure detection signal and the second air pressure detection signal into digital signals, and then analyze and process the first air pressure detection signal and the second air pressure detection signal to obtain the difference in air pressure between the inner and outer sides of the alcohol detection gas path, i.e., the air pressure difference. The alcohol detection device can compare the air pressure difference with a preset air pressure difference to determine whether the air pressure difference is greater than the preset air pressure difference, and can start timing when it is determined that the air pressure difference is greater than the preset difference, and can compare the timing result with the preset difference to determine whether the timing result is equal to the preset duration, and can determine that the duration reaches the preset duration when the judgment result is equal to the preset duration; when the judgment result is not equal to the preset duration, it is determined that the duration does not reach the preset duration and continues to time. An alcohol concentration detection module can be provided in the smart watch corresponding to the alcohol detection gas path, and the alcohol concentration detection module is used to obtain the alcohol concentration in the alcohol detection gas path and output the alcohol concentration detection signal to the alcohol detection device. The alcohol detection device can obtain the alcohol concentration detection signal when it is determined that the duration reaches the preset duration. The alcohol detection device can convert the alcohol concentration detection signal into a digital signal, analyze and process the alcohol concentration and the detection signal to obtain the real-time alcohol concentration value in the alcohol detection gas path, and can control the preset prompt module in the smart wearable device to send a second prompt message, so that the user can know the alcohol detection result after obtaining the second prompt message to stop blowing.

[0058] The alcohol detection device can also control the preset prompt module in the smart wearable device to issue a third prompt message when the comparison result of the air pressure difference value and the preset air pressure difference value is less than or equal to, so that the user can know after obtaining the third prompt message that the current blowing force and blowing direction do not meet the requirements of the alcohol detection function of the smart watch, and it is necessary to increase the blowing force and / or adjust the blowing direction.

[0059] In another embodiment, the smart watch may also be provided with an air flow direction detection circuit corresponding to the air inlet of the alcohol detection gas path. The air flow direction detection circuit may detect the air flow direction entering the air inlet and output an air flow direction detection signal to the alcohol detection device. When the pressure difference in the alcohol detection gas path is not greater than the preset pressure difference, the alcohol detection device may determine the current air flow direction entering the air inlet according to the air flow direction detection signal, and may determine whether the current air flow direction is within the preset air flow direction range. When it is determined that it is not within the preset air flow direction range, the adjustment direction of the current air flow direction is further determined according to the current air flow direction and the preset air flow direction range. At this time, the alcohol detection device may also control the preset prompt module to issue an air flow direction prompt information, so that the user can accurately adjust the blowing direction after obtaining the air flow direction prompt information, so that the air flow direction entering the air inlet after adjustment can be within the preset air flow range, thereby avoiding the user from blindly increasing the blowing force, which is conducive to improving the practicality of the alcohol detection function of the smart watch. If the alcohol detection device determines that the currently connected airflow direction is within the preset airflow direction range, the alcohol detection device can control the preset prompt module to issue a force increase prompt message, so that the user can increase the current blowing force after obtaining the force increase prompt message, so that the air pressure difference in the alcohol detection air path after the blowing force is increased can be greater than the preset air pressure difference, thereby realizing alcohol detection.

[0060] In this way, when the user uses the alcohol detection function of the smart watch to blow toward the blowing port, he can know in time whether the current blowing force and blowing direction meet the requirements of the alcohol detection function according to the prompt information sent by the smart watch, and can adjust the blowing force and blowing direction in time when they do not meet the requirements, so that the adjusted blowing force and blowing direction can successfully trigger the alcohol detection function of the smart watch. And when the blowing force and direction of the user do not meet the requirements of the alcohol detection function, the air pressure difference in the alcohol detection air path is not greater than the preset air pressure difference, that is, the alcohol detection function realized by the alcohol detection method of the present invention cannot be triggered, avoiding the low detection value caused by the user's blowing force and blowing direction not meeting the standards, thereby solving the problem of low success rate and accuracy of alcohol detection of existing smart watches, greatly reducing the probability of users driving under the influence of alcohol due to misjudgment of their own status, which is conducive to protecting the life safety of users.

[0061] Reference Figure 1 Before the step of obtaining the air pressure difference in the alcohol detection gas path, the alcohol detection method further includes:

[0062] When the alcohol detection instruction is received, a fourth prompt message is issued, and the fourth prompt message is used to prompt the user to blow towards the air inlet of the alcohol detection air circuit.

[0063] In this embodiment, the user can output the alcohol detection instruction to the alcohol detection device by triggering the user trigger module on the smart watch, wherein the user trigger module can be a dedicated functional part, a touch screen or a voice module, etc., which is not limited here. When the alcohol detection device receives the alcohol detection signal, it can control the preset prompt module to send a fourth prompt message, so that the user can know that the alcohol detection function of the current smart watch has been normally turned on after obtaining the fourth prompt message, and the user can blow towards the air inlet of the alcohol detection air path at this time. In another embodiment, the fourth prompt message can also specifically prompt the user of the position of the air inlet on the smart watch to help users with a high degree of drunkenness quickly find the air inlet for alcohol detection. The technical solution of the present invention enables the alcohol detection device to obtain the air pressure detection signal after obtaining the alcohol detection instruction and obtain the air pressure difference in the alcohol detection air path according to the air pressure detection signal. Compared with the real-time determination of the air pressure difference in the alcohol detection air path, it can avoid the user being in an environment with a large air pressure difference, such as when entering the room from the outdoors, the smart watch is mistakenly triggered to send a prompt message and affect the user experience.

[0064] Reference Figure 2 , the alcohol detection method further comprises:

[0065] Step S410: when the pressure difference in the alcohol detection gas path is not greater than the preset pressure difference, determining whether the detection time is greater than the preset detection time;

[0066] Step S420: If the detection time is not greater than the preset detection time, a third prompt message is issued, wherein the third prompt message is used to prompt the user to adjust the blowing force and / or blowing direction;

[0067] Step S430: If the detection time is greater than the preset detection time, a fifth prompt message is issued, wherein the fifth prompt message is used to prompt the user that the alcohol test has failed.

[0068] The alcohol detection device can start timing when the user chooses to turn on the alcohol detection function, and the timing result is the detection time. The alcohol detection device can also compare the timing result with the preset detection time, and when the comparison result is that the timing result is less than or equal to the preset detection time, it can determine that the detection time is greater than the preset detection time. At this time, it is characterized that the target person of the alcohol detection is more cooperative with the alcohol detection, only the blowing force and / or blowing direction are not up to standard, so the preset prompt module can be controlled to send a third prompt message to prompt the user to adjust the blowing force and / or blowing direction. When the comparison result is that the timing result is greater than the preset detection time, it is determined that the detection time is greater than the preset detection time. At this time, it is characterized that the target person of the alcohol detection does not cooperate with the alcohol detection, or the air pressure difference in the alcohol detection gas path cannot be greater than the preset air pressure difference due to other factors such as the environment. At this time, the alcohol detection device can control the preset prompt module to send a fifth prompt message, so that the user can know that the alcohol detection fails after obtaining the fifth prompt message. It should be noted that in this embodiment, the target person of the alcohol detection and the user of the smart watch can be different people. Such a setting can not only prompt the user to adjust the blowing force and / or blowing direction, but also enable the user to know the failure of alcohol detection in time and take corresponding measures, which is conducive to improving the practicality of the technical solution of the present invention.

[0069] Reference Figure 1 , the alcohol detection method further comprises:

[0070] When the air pressure difference is greater than the preset air pressure difference, the value of the alcohol concentration detection module is read at a preset time interval;

[0071] The steps for obtaining the alcohol concentration in the alcohol detection gas path are as follows:

[0072] The maximum value among the values ​​of the alcohol concentration detection module read within a preset duration is determined as the detection result of the alcohol concentration.

[0073] In this embodiment, after obtaining the alcohol concentration in the alcohol detection gas path, the alcohol concentration detection module can directly generate the corresponding alcohol concentration value. The alcohol detection device can read the alcohol concentration value currently generated by the alcohol concentration detection module once at a preset time interval after the air pressure difference is greater than the preset air pressure difference. If the air pressure difference changes to no more than the preset air pressure difference before the duration reaches the preset duration, the alcohol concentration value obtained during the duration is cleared; if the duration reaches the preset duration, the alcohol concentration values ​​obtained during the duration are compared to determine the alcohol concentration value with the largest value, and the alcohol concentration value with the largest value is used as the alcohol concentration detection result. The alcohol detection device can issue a second prompt message based on the alcohol detection result. In this embodiment, the preset time interval can be selected from a range of not less than 200ms to not more than 1000ms, so that the multiple alcohol concentration values ​​obtained within the preset duration can effectively represent the actual degree of drunkenness of the user under the premise of reducing the number of readings and simplifying program design.

[0074] With this setting, compared with selecting other values ​​or performing corresponding calculations on all the alcohol concentration values ​​obtained and using the calculated results as the alcohol concentration test results, the maximum alcohol concentration value can better represent the user's actual degree of drunkenness, thereby helping to reduce the probability of the user misjudging his or her own condition based on the test results and driving under the influence.

[0075] Reference Figure 1 , the alcohol detection method further comprises:

[0076] When the air pressure difference is greater than the preset air pressure difference for less than the preset duration, a first prompt message is issued.

[0077] When it is determined that the duration has not reached the preset duration and the air pressure difference is greater than the preset difference, the alcohol detection device may continue to send out the first prompt signal until the duration reaches the preset duration or the air pressure difference changes to not greater than the preset difference, so that the user can maintain the current blowing force and blowing direction before the preset duration is reached, and stop blowing until the test result is seen. In other words, by continuously sending out the first prompt information to remind the user that an alcohol test is being conducted, it can effectively prevent the user from stopping blowing after maintaining the blowing force and direction for a short time, thereby helping to improve the success rate and accuracy of alcohol detection.

[0078] In actual applications, it is found that the alcohol detection function of the smart watch is greatly affected by the wind speed in the environment in which it is located. Specifically, in an environment with a high wind speed, even if the user's blowing force and blowing direction toward the air inlet meet the standards, there is a high probability that the air pressure difference in the alcohol detection air path is low and cannot reach the preset air pressure difference, and it is also very easy for the air pressure difference to fluctuate greatly, resulting in the air pressure difference being greater than the preset air pressure difference. The duration is difficult to reach the preset duration. To address this problem, the alcohol detection method also includes:

[0079] If it is determined that the duration of the air pressure difference being greater than the preset air pressure difference within the preset exhalation time does not reach the preset duration, detecting the ambient wind speed of the smart watch;

[0080] Determine whether the ambient wind speed of the smart watch reaches the preset wind speed;

[0081] If the ambient wind speed of the smart watch reaches a preset wind speed, a sixth prompt message is issued, and the sixth prompt message is used to prompt the user to change the detection environment or blow air close to the air inlet of the alcohol detection gas path.

[0082] In this embodiment, the alcohol detection device may be provided with a wind speed detection module, which is used to detect the wind speed in the environment where the smart watch is located, and output a wind speed detection signal to the alcohol detection device. The alcohol detection device may convert the wind speed detection signal into a digital signal, analyze and process it to obtain the wind speed in the environment where the smart watch is located, that is, the ambient wind speed, and may compare the ambient wind speed with the preset wind speed to determine whether the ambient wind speed reaches the preset wind speed. Specifically: the alcohol detection device may determine that the ambient wind speed reaches the preset wind speed when the comparison result is that the ambient wind speed is equal to or greater than the preset wind speed; and determine that the ambient wind speed does not reach the preset wind speed when the comparison result is that the ambient wind speed is less than the preset wind speed.

[0083] When the alcohol detection device determines that the wind speed in the environment reaches the preset wind speed, it indicates that the wind speed in the environment where the smart watch is located is relatively high. At this time, the alcohol detection device can control the preset prompt module to send the sixth prompt information, so that the user can know that the wind speed in the current environment where the smart watch is located is relatively high after obtaining the sixth prompt information, and it has a greater impact on the result of the alcohol detection, so that the user can change the detection environment with a lower wind speed or the blowing port closer to the alcohol detection air path, and then blow to achieve alcohol detection. In this way, the alcohol detection function of the smart watch can be reduced from being affected by the wind speed in its environment, which is conducive to further improving the success rate and accuracy of alcohol detection on the smart watch.

[0084] Furthermore, since the wind speed detection module itself is heavy and often requires a large installation area, the adoption of the above wind speed detection solution often makes the volume and weight of the smart watch too large, which is not conducive to the daily wear and use of the smart watch. The alcohol detection method also includes:

[0085] The alcohol detection method also includes:

[0086] If it is determined that the duration of the air pressure difference being greater than the preset air pressure difference within the preset exhalation time does not reach the preset duration, detecting the ambient wind speed of the smart watch;

[0087] Determine whether the ambient wind speed of the smart watch reaches the preset wind speed;

[0088] If the ambient wind speed of the smart watch reaches a preset wind speed, a sixth prompt message is issued, and the sixth prompt message is used to prompt the user to change the detection environment or blow air close to the air inlet of the alcohol detection gas path.

[0089] In actual applications, it is found that in an environment with a relatively high wind speed, the wind speed will make it extremely difficult for the duration of the air pressure difference in the alcohol detection gas path to be greater than the preset air pressure difference to reach the preset duration, resulting in a high degree of fluctuation of the air pressure difference in the alcohol detection gas path. Therefore, the alcohol detection device can determine the wind speed of the current smart watch environment by calculating the degree of fluctuation of the air pressure difference in the alcohol detection gas path. If the duration of the air pressure difference greater than the preset air pressure difference within the preset exhalation time does not reach the preset duration, the alcohol detection device can perform a corresponding calculation on the duration and the preset duration, such as a division calculation, and can use the inverse of the calculation result as the degree of fluctuation of the air pressure difference, that is, the shorter the ratio of the duration to the preset duration, the greater the degree of fluctuation of the air pressure difference. The alcohol detection device can compare the degree of fluctuation of the air pressure difference with the preset degree of fluctuation to determine whether the degree of fluctuation of the air pressure difference reaches the preset degree of fluctuation. Specifically: when the comparison result is that the fluctuation degree is equal to or greater than the preset fluctuation degree, the alcohol detection device can determine that the ambient wind speed is large or the ambient wind speed reaches the preset wind speed; when the comparison result is that the fluctuation degree is less than the preset fluctuation degree, the alcohol detection device can determine that the ambient wind speed is small or the ambient wind speed does not reach the preset wind speed.

[0090] When the alcohol detection device can determine that the fluctuation degree of the air pressure difference reaches the preset fluctuation degree, it indicates that the wind speed in the environment where the smart watch is located is relatively high. At this time, the alcohol detection device can control the preset prompt module to send the sixth prompt information, so that the user can know that the wind speed in the current environment where the smart watch is located is relatively high after obtaining the sixth prompt information, and it has a greater impact on the result of the alcohol detection, so that the user can change the detection environment with a lower wind speed or the blowing port closer to the alcohol detection gas path, and then blow to achieve alcohol detection. Of course, in order to further improve the prompt accuracy of the sixth prompt signal, the smart watch is also provided with a wind speed detection module, so that the sixth prompt signal is issued only when it is determined that the wind speed in the environment where the smart watch is located is relatively high according to the wind speed detection signal and the fluctuation degree of the air pressure difference.

[0091] It should be noted that the preset prompt function module mentioned above can be one or more combinations of prompt modules such as display screen, motor module, voice module, indicator light module, etc. in the smart watch, which is not limited here. The first prompt information to the sixth prompt information can be set according to the preset prompt module. Here, the first prompt information is used as an example for explanation: when the preset prompt module includes a voice module, the first prompt information can be a voice broadcast of "Please maintain the current blowing force and direction". When the preset prompt module includes a display screen, the first prompt information can be a text message of "Please maintain the current blowing force and direction".

[0092] Reference Figure 2 , the alcohol detection method further comprises:

[0093] When the air pressure difference in the alcohol detection air path is greater than a preset air pressure difference, a first prompt message is issued, wherein the first prompt message is used to prompt the user to maintain the blowing force and blowing direction.

[0094] Specifically, when the comparison result is that the air pressure difference is greater than the preset air pressure difference, the alcohol detection device can control the preset prompt module in the smart wearable device to send a first prompt message, so that the user can know after obtaining the first prompt message that the current blowing force and blowing direction have met the requirements of the alcohol detection function of the smart watch, and there is no need to adjust the blowing force and blowing direction, just continue to maintain it.

[0095] The invention also provides an alcohol detection device.

[0096] Reference Figure 3 In one embodiment, the alcohol detection device comprises:

[0097] Memory 11;

[0098] processor 12; and

[0099] An alcohol detection program stored in the memory 11 and executable on the processor 12, wherein: when the alcohol detection program is executed by the processor 12, the alcohol detection method as described above is implemented.

[0100] Among them, the specific steps of the alcohol detection method refer to the above-mentioned embodiments. Since the alcohol detection device adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. The memory 11 can be a high-speed RAM memory 11, or a stable memory 11 (non-volatile memory), such as a disk memory 11. The memory 11 can optionally be a storage device independent of the aforementioned control device; the processor 12 can be a CPU. The memory 11 and the processor 12 are connected by a communication bus 13, and the communication bus 13 can be a UART bus or an I2C bus.

[0101] The present invention also provides a smart watch.

[0102] Reference Figure 4 , the smart watch includes an alcohol detection gas circuit 20 and an alcohol detection device 10. The alcohol detection device 10 can implement an alcohol detection method. The specific structure of the alcohol detection method refers to the above embodiment. Since the present smart watch adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. Among them, the alcohol detection device 10 can determine that when the air pressure difference in the alcohol detection gas circuit 20 is greater than the preset air pressure difference, it will issue a first prompt message, and the first prompt message is used to prompt the user to maintain the blowing force and blowing direction; determine whether the duration of the air pressure difference greater than the preset air pressure difference reaches the preset duration; if it is determined that the duration reaches the preset duration, obtain the alcohol concentration in the alcohol detection gas circuit 20; issue a second prompt message, and the second prompt message is used to prompt the detection result of the alcohol concentration; when the air pressure difference in the alcohol detection gas circuit 20 is not greater than the preset air pressure difference, a third prompt message is issued, and the third prompt message is used to prompt the user to adjust the blowing force and / or blowing direction.

[0103] Optionally, the smart watch may further include an alcohol detection module 30, which may be arranged corresponding to the alcohol detection gas circuit 20, so as to detect the alcohol concentration in the alcohol detection gas circuit 20, and output an alcohol concentration detection signal to the alcohol detection device 10, so that the alcohol detection module 30 can obtain the alcohol concentration in the alcohol detection gas circuit 20 according to the alcohol concentration detection signal when it is determined that the duration reaches a preset duration.

[0104] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A method for detecting alcohol, characterized in that: Applied to a smart watch, the smart watch includes an alcohol detection gas circuit, and the alcohol detection method includes: Obtain the air pressure difference in the alcohol detection gas path; Determine whether the pressure difference in the alcohol detection gas path is greater than a preset pressure difference; When the air pressure difference in the alcohol detection gas path is greater than the preset air pressure difference, and the duration of the air pressure difference being greater than the preset air pressure difference reaches the preset duration, the alcohol concentration in the alcohol detection gas path is obtained, and a second prompt message is issued, wherein the second prompt message is used to prompt the detection result of the alcohol concentration; When the air pressure difference in the alcohol detection air path is not greater than the preset air pressure difference, a third prompt message is issued, and the third prompt message is used to prompt the user to adjust the blowing force and / or blowing direction.

2. The alcohol detection method according to claim 1, wherein: Before the step of obtaining the air pressure difference in the alcohol detection gas path, the alcohol detection method further includes: When the alcohol detection instruction is received, a fourth prompt message is issued, and the fourth prompt message is used to prompt the user to blow towards the air inlet of the alcohol detection air circuit.

3. The alcohol detection method as claimed in claim 1, characterized in that, The alcohol detection method also includes: When the air pressure difference in the alcohol detection air path is not greater than the preset air pressure difference, determining whether the detection time is greater than the preset detection time; If the detection time is not greater than the preset detection time, a third prompt message is issued, wherein the third prompt message is used to prompt the user to adjust the blowing force and / or blowing direction; If the detection time is greater than the preset detection time, a fifth prompt message is issued, wherein the fifth prompt message is used to prompt the user that the alcohol test has failed.

4. The alcohol detection method according to claim 1, wherein: The alcohol detection method also includes: When the air pressure difference is greater than the preset air pressure difference, the value of the alcohol concentration detection module is read at a preset time interval; The steps for obtaining the alcohol concentration in the alcohol detection gas path are as follows: The maximum value among the values ​​of the alcohol concentration detection module read within a preset duration is determined as the detection result of the alcohol concentration.

5. The alcohol detection method according to claim 1, characterized in that: The alcohol detection method also includes: When the air pressure difference is greater than the preset air pressure difference for less than the preset duration, a first prompt message is issued.

6. The alcohol detection method according to any one of claims 1 to 5, characterized in that: The alcohol detection method also includes: If it is determined that the duration of the air pressure difference being greater than the preset air pressure difference within the preset exhalation time does not reach the preset duration, detecting the ambient wind speed of the smart watch; Determine whether the ambient wind speed of the smart watch reaches the preset wind speed; If the ambient wind speed of the smart watch reaches a preset wind speed, a sixth prompt message is issued, and the sixth prompt message is used to prompt the user to change the detection environment or blow air close to the air inlet of the alcohol detection gas path.

7. The alcohol detection method according to any one of claims 1 to 5, characterized in that: The alcohol detection method also includes: If it is determined that the duration of the air pressure difference being greater than the preset air pressure difference within the preset exhalation time does not reach the preset duration, then obtaining the fluctuation degree of the air pressure difference in the alcohol detection gas path; Determine whether the fluctuation degree of the air pressure difference in the alcohol detection air path reaches a preset fluctuation degree; If it is determined that the fluctuation degree of the air pressure difference in the alcohol detection air circuit reaches a preset fluctuation degree, a sixth prompt message is issued, and the sixth prompt message is used to prompt the user to change the detection environment or blow air close to the air inlet of the alcohol detection air circuit.

8. The alcohol detection method according to any one of claims 1 to 5, characterized in that: The alcohol detection method also includes: When the air pressure difference in the alcohol detection air path is greater than a preset air pressure difference, a first prompt message is issued, wherein the first prompt message is used to prompt the user to maintain the blowing force and blowing direction.

9. An alcohol detection device, characterized in that: The alcohol detection device comprises: Memory; processor; and, An alcohol detection program stored in the memory and executable on the processor, wherein: when the alcohol detection program is executed by the processor, the alcohol detection method according to any one of claims 1 to 8 is implemented.

10. A smart watch, characterized in that: The smart watch comprises an alcohol detection gas circuit and the alcohol detection device as claimed in claim 9.

11. The smart watch according to claim 10, characterized in that: The smart watch comprises: An alcohol detection module is connected to the alcohol detection device, and is used to detect the alcohol concentration in the alcohol detection gas path and output an alcohol concentration detection signal to the alcohol detection device.

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