CN111694258A - Internet of things wall clock - Google Patents
Internet of things wall clock Download PDFInfo
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- CN111694258A CN111694258A CN202010528389.2A CN202010528389A CN111694258A CN 111694258 A CN111694258 A CN 111694258A CN 202010528389 A CN202010528389 A CN 202010528389A CN 111694258 A CN111694258 A CN 111694258A
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B23/00—Arrangements producing acoustic signals at preselected times
- G04B23/02—Alarm clocks
- G04B23/025—Signal triggering
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
- G04B47/06—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached measuring instruments, e.g. pedometer, barometer, thermometer or compass
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention provides an Internet of things wall clock, which comprises: the invention can automatically set reasonable alarm clock time for a user on weekends, is beneficial to ensuring sufficient sleep time of the user on weekends and also beneficial to ensuring that the waking time point of the user on weekends is close to a normal biological clock to the maximum extent, thereby ensuring the stability of the biological clock on the weekends and the biological clock in the weekends to the maximum extent and being beneficial to the user to keep regular work and rest.
Description
Technical Field
The invention relates to the technical field of wall clocks, in particular to an Internet of things wall clock.
Background
The wall clock is used as a daily living article and can provide functions of date and time display, alarm clock and the like for a user. The user sets different alarm clock times in the week and on the weekend usually, and the alarm clock time in the week is comparatively fixed, is morning's working hour basically, and user's work and rest is comparatively regular, can form fixed biological clock. The alarm clock time on weekends is set according to the wishes of the user, and the user usually sets a later alarm clock on weekends, so that the sleeping time is too long, the normal work and rest rules are destroyed, the biological clock is easy to be disordered and difficult to recover, and the sleeping quality of the people on duty in the week can be influenced later.
Disclosure of Invention
The invention provides a wall clock for solving the problem that the traditional wall clock cannot automatically set reasonable alarm clock time for a user on weekends so as to assist the user to keep regular work and rest.
The technical scheme of the invention is realized as follows: an internet of things wall clock, comprising: a timing unit; a sound playing unit;
a date and clock unit for providing a current date and time;
the infrared detection unit is used for identifying indoor users;
a light intensity detecting unit for detecting an illumination intensity in a room;
the data acquisition unit is used for acquiring the average sleeping time and the alarm clock setting time in the week of the user according to the historical sleeping habits of the user;
the central control unit is used for controlling the infrared detection unit to identify an indoor user at night under the condition that the date is displayed as weekend, controlling the light intensity detection unit to detect indoor illumination intensity after the infrared detection unit identifies the user, and controlling the timing unit to time after the indoor illumination intensity is initially smaller than preset light intensity;
the central control unit is also used for controlling the sound playing unit to play the ring tone under the condition that the timing duration of the timing unit reaches the average sleep duration and the current time is not earlier than the set time of the alarm clock.
Optionally, the controlling, by the central control unit, the sound playing unit to play the ring tone under the condition that the timing duration of the timing unit reaches the average sleep duration and the current time is not earlier than the set time of the alarm clock includes:
if the time when the timing duration of the timing unit reaches the average sleep duration is earlier than the alarm clock setting time, the central control unit controls the sound playing unit to play the ring at the alarm clock setting time;
if the time when the timing duration of the timing unit reaches the average sleep duration is not earlier than the set time of the alarm clock, the central control unit controls the sound playing unit to play the ring at the time when the timing duration of the timing unit reaches the average sleep duration.
Optionally, the infrared detection unit includes:
the particle catching module is used for catching particles in indoor air;
the spectral imaging module is used for emitting infrared light to irradiate the particles and form an infrared absorption spectrum;
the cluster analysis module is used for carrying out cluster analysis on the infrared absorption spectrum to obtain a characteristic absorption peak of the particles;
and the user identification module is used for identifying the indoor user according to the characteristic absorption peak.
Optionally, the light intensity detecting unit includes a photodetector, a pre-amplification module, an AD conversion module, and a range conversion module;
the photoelectric detector is used for detecting the indoor illumination intensity and converting the light intensity signal into a photocurrent signal;
the input end of the pre-amplification module is connected with the output end of the photoelectric detector, and the pre-amplification module is used for converting the photocurrent signal into a voltage signal and amplifying the voltage signal;
the input end of the AD conversion module is connected with the output end of the pre-amplification module, and the output end of the AD conversion module is connected with the central control unit;
the range conversion module is respectively connected with the pre-amplification module and the central control unit, and is used for changing the gain of the pre-amplification module by changing the range of the range conversion module;
the central control unit is further used for controlling the range conversion module to change the gain of the pre-amplification module when the output of the pre-amplification module is higher than the input upper limit of the AD conversion module or lower than the input lower limit of the AD conversion module until the output of the pre-amplification module is between the input lower limit and the input upper limit.
Optionally, the central control unit is further configured to:
when the gain of the pre-amplification module is at the maximum value and the output of the pre-amplification module is lower than the input lower limit, controlling the range conversion module to keep the range of the pre-amplification module unchanged;
and when the gain of the pre-amplification module is at a minimum value and the output of the pre-amplification module is higher than the upper input limit, controlling the range conversion module to keep the range of the range conversion module unchanged.
Optionally, the light intensity detecting unit further includes a dark current compensation module, configured to make the input current of the pre-amplification module be zero when the photocurrent signal output by the photodetector is zero.
Compared with the prior art, the Internet of things wall clock has the following beneficial effects:
(1) the Internet of things wall clock can automatically set reasonable alarm clock time for a user on weekends, so that the sufficient sleep time of the user on weekends is ensured, the getting-up time of the user on weekends is ensured to be close to a normal biological clock to the maximum extent, the stability of the biological clock on the weekends and the biological clock in the weeks is ensured to the maximum extent, and regular work and rest of the user are ensured;
(2) according to the Internet of things wall clock, the indoor user is identified by analyzing the characteristic absorption peak in the infrared spectrum of the indoor particles without considering the motion state and the infrared radiation of the user, the influence of pets on the identification of the user is eliminated, the reliability of judging whether the user is indoors is high, and the possibility of misjudgment is reduced;
(3) the light intensity detection unit can automatically adjust the gain of the pre-amplification module according to the output voltage of the pre-amplification module so as to enable the output voltage of the pre-amplification module to be within the range of the AD conversion module, has the advantages of low noise, high gain, high common mode rejection ratio, small misadjustment, large dynamic range of detectable light intensity and the like, and can meet the actual application requirement of light intensity detection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an Internet of things wall clock of the present invention;
FIG. 2 is a schematic structural diagram of a light intensity detecting unit according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, the internet of things wall clock of the embodiment includes: a timing unit; a sound playing unit;
a date and clock unit for providing a current date and time;
the infrared detection unit is used for identifying indoor users;
a light intensity detecting unit for detecting an illumination intensity in a room;
the data acquisition unit is used for acquiring the average sleeping time and the alarm clock setting time in the week of the user according to the historical sleeping habits of the user;
the central control unit is used for controlling the infrared detection unit to identify an indoor user at night under the condition that the date is displayed as weekend, controlling the light intensity detection unit to detect the indoor illumination intensity after the infrared detection unit identifies the user, and controlling the timing unit to time after the indoor illumination intensity is firstly smaller than the preset light intensity;
the central control unit is also used for controlling the sound playing unit to play the ring tone under the condition that the timing duration of the timing unit reaches the average sleep duration and the current time is not earlier than the set time of the alarm clock.
The timing unit, the sound playing unit, the date and clock unit are all common functional units in the wall clock. In the embodiment, only the scene that the user falls asleep at night is considered, the application scene that the user falls asleep at daytime is not involved, the night is a set time period, and different time zones are different, for example, in the wuhan area of the chinese time zone, the night is set to 8 pm to 5 am. After entering night, if the user gets up and turns on the light many times after falling asleep, the embodiment selects the indoor illumination intensity to be smaller than the preset light intensity for the first time and then performs timing, namely, the timing is started when the user just falls asleep. In this embodiment, if the infrared detection unit identifies that the user is located indoors, if the light intensity detection unit detects that the indoor illumination intensity is smaller than the preset light intensity, the user is asleep. The preset light intensity is set according to the specific indoor light environment of the user, the influence of various light sources such as electronic equipment, emergency lamps, illuminating lamps and desk lamps of the user on the illumination intensity of the night sleeping environment is considered, and the preset light intensity can be set according to the indoor light environment after the user falls asleep in the week. If the light intensity of each night falling asleep in the user historical sleep record is less than a certain light intensity value, the light intensity value can be set as the preset light intensity.
Generally, the average sleep time of the user in the week and the alarm setting time can be regarded as fixed, the two parameters can represent the biological clock of the user, wherein the priority of the stability of the alarm setting time is greater than the average sleep time, and the priority of the sleep time of the user at the weekend is greater than the stability of the alarm setting time. In this embodiment, the average sleep time may be 8 hours, and the alarm clock setting time may be 8 am. In the embodiment, after the infrared detection unit judges whether the user is indoors, the light intensity detection unit judges whether the user falls asleep or not after the user is judged to be indoors, so that the light intensity detection unit can be prevented from working all the time, and electric energy can be saved; the method comprises the steps of timing after a user is judged to fall asleep, controlling the sound playing unit to play the ring tone under the condition that the timing time reaches the average sleep time and the current time is not earlier than the set time of the alarm clock, and reminding the user to get up, so that reasonable alarm clock time can be automatically set for the user on weekends, the sufficient weekend sleep time of the user is ensured, the normal biological clock can be maximally approached to the getting-up time point of the user on weekends, the stability of the biological clock on the weekends and the biological clock in the week is ensured to the maximum degree, and regular work and rest of the user are kept.
Optionally, the controlling, by the central control unit, the sound playing unit to play the ring tone under the condition that the timing duration of the timing unit reaches the average sleep duration and the current time is not earlier than the set time of the alarm clock includes:
if the time when the timing duration of the timing unit reaches the average sleep duration is earlier than the set time of the alarm clock, the central control unit controls the sound playing unit to play the ring at the set time of the alarm clock;
if the time when the timing duration of the timing unit reaches the average sleep duration is not earlier than the set time of the alarm clock, the central control unit controls the sound playing unit to play the ring at the time when the timing duration of the timing unit reaches the average sleep duration.
Generally, when the timing reaches the average sleeping time of the user in the week, the sound playing unit can be controlled to play the ring, so that the user is reminded to get up, and if the time at the moment is earlier than the alarm clock setting time, the biological clock and the work and rest rule of the user are undoubtedly destroyed at the alarm clock setting time. The embodiment firstly ensures that the sleep time of the user reaches the average sleep time, and if the time at this moment is earlier than the ordinary alarm clock setting time, the user is reminded to get up after the time reaches the ordinary alarm clock setting time, so that the humanized design that the stability priority of the alarm clock setting time is greater than the average sleep time is reflected even if the sleep time of the user exceeds the average sleep time is realized; when the sleep time of the user reaches the average sleep time, if the time at this moment is later than the set time of the alarm clock at ordinary times, the user is reminded to get up immediately when the sleep time of the user reaches the average sleep time, even if the stability of the user at the time point of getting up is damaged, the humanized design that the priority of the sleep time of the user at weekends is higher than the stability of the set time of the alarm clock is reflected.
Optionally, the infrared detection unit includes:
the particle catching module is used for catching particles in indoor air;
the spectral imaging module is used for emitting infrared light to irradiate the particles and form an infrared absorption spectrum;
the cluster analysis module is used for carrying out cluster analysis on the infrared absorption spectrum to obtain a characteristic absorption peak of the particles;
and the user identification module is used for identifying the indoor user according to the characteristic absorption peak.
Generally, a human body is identified by an infrared temperature measurement thermal imaging principle, because an indoor environment is complex, the influence of more heat sources on infrared temperature measurement is large, such as heat generated by a lamp and pet radiation heat, the reliability of infrared temperature measurement thermal imaging is greatly reduced, and the situation that a user is not indoors but the user is located indoors as a result of identification of an infrared detection unit easily causes misjudgment is caused. Generally, a user is identified through a pyroelectric infrared sensor, and the mode is generally used for identifying a moving human body, but the application scene of the embodiment is that the user is in a sleep state, the user is in a static state or has a micro motion, and the reliability of the mode for identifying the user through the pyroelectric infrared sensor is low.
In this embodiment, considering that there are many particles, such as dust, clothes fiber, hair of a human body or a pet, and skin debris of a human body or a pet, etc., in the indoor air, the hair of a human body or a pet and the skin debris are organic matters, the organic matters generate different infrared absorption spectra under the irradiation of infrared light, and the infrared absorption spectra of an animal and a human are different, and the organic matter particles can be analyzed through characteristic absorption peaks in the infrared spectra to identify an indoor user. The method does not need to consider the motion state and the infrared radiation of the user, eliminates the influence of the pet on the user identification, judges whether the user is indoors or not, and reduces the possibility of misjudgment.
As shown in fig. 2, the light intensity detecting unit of the present embodiment includes a photodetector, a pre-amplification module, an AD conversion module, a range conversion module, and a dark current compensation module; the photoelectric detector is used for detecting the indoor illumination intensity and converting the light intensity signal into a photocurrent signal; the input end of the pre-amplification module is connected with the output end of the photoelectric detector, and the pre-amplification module is used for converting the photocurrent signal into a voltage signal and amplifying the voltage signal; the input end of the AD conversion module is connected with the output end of the pre-amplification module, and the output end of the AD conversion module is connected with the central control unit; the range conversion module is respectively connected with the pre-amplification module and the central control unit and is used for changing the gain of the pre-amplification module by changing the range of the range conversion module; the central control unit is also used for controlling the range conversion module to change the gain of the pre-amplification module when the output of the pre-amplification module is higher than the input upper limit of the AD conversion module or lower than the input lower limit of the AD conversion module until the output of the pre-amplification module is between the input lower limit and the input upper limit; the dark current compensation module is used for enabling the input current of the preamplification module to be zero when the photocurrent signal output by the photoelectric detector is zero. And the digital signal output by the AD conversion module is transmitted to the central control unit, and the central control unit calculates the indoor illumination intensity according to the output of the AD conversion module.
Generally, because an optical signal output by a photodetector is usually weak, interference of various noises directly affects measurement accuracy of a useful signal, and both resolution and measurement range need to be considered during measurement, which requires a reasonable design of a pre-amplification module connected with the detector to obtain a large dynamic range and a high signal-to-noise ratio. Most of the existing light intensity signal amplification modules only pursue high gain, but neglect the consideration of measurement range, and have the problems of temperature drift, noise increase, offset voltage large and the like, which can not meet the practical application requirements of the light intensity detection system.
In this embodiment, after the module is powered on, the range conversion module automatically sets the range to the highest level, that is, the gain of the preamplifier module is the maximum, and the AD conversion module reads the output voltage of the preamplifier module once every certain period of time to perform over-range or under-range judgment. The judgment standard takes 95% of the maximum value of the AD conversion module as the input upper limit, takes 10% of the minimum value of the AD conversion module as the input lower limit, the output voltage of the pre-amplification module is over-range when the output voltage is higher than the input upper limit, and the output voltage of the pre-amplification module is under-range when the output voltage is lower than the input lower limit. If the output voltage of the pre-amplification module is between the input lower limit and the input upper limit, the central control unit outputs the program control signal to control the range of the range conversion module to change from high to low until the output voltage of the pre-amplification module is between the input lower limit and the input upper limit. If the current measuring range is not suitable after the input optical power is changed, the module automatically determines the increase and decrease of the measuring range according to the change trend of the input optical power until the measuring range is suitable again. Since there inevitably exists a certain dark current in the photodetector, in order to reduce the influence of dark current noise, the dark current compensation module is added in the present embodiment, and the current input to the pre-amplification module is zero when no light intensity is input by adjusting the compensation module. Therefore, the light intensity detection unit of the embodiment can automatically adjust the gain of the pre-amplification module according to the output voltage of the pre-amplification module so as to enable the output voltage of the pre-amplification module to be within the measuring range of the AD conversion module, has the advantages of low noise, high gain, high common mode rejection ratio, small misadjustment, large dynamic range of detectable light intensity and the like, and can meet the actual application requirement of light intensity detection.
In this embodiment, the central control unit is further configured to: when the gain of the pre-amplification module is at the maximum value and the output of the pre-amplification module is lower than the lower input limit, the range conversion module is controlled to keep the range of the pre-amplification module unchanged; and when the gain of the pre-amplification module is at the minimum value and the output of the pre-amplification module is higher than the upper input limit, the range conversion module is controlled to keep the range of the pre-amplification module unchanged. The light intensity detecting unit of the present embodiment may operate in the following two cases: when the current measuring range of the measuring range conversion module is in the highest measuring range, the output of the preamplification module still lacks the measuring range; when the current range of the range conversion module is in the lowest range, the output of the preamplification module still exceeds the range. At this time, the central control unit will perform special processing, and the range conversion module will automatically maintain the original range unchanged to prevent the unstable range.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An Internet of things wall clock, comprising: a timing unit; a sound playing unit;
a date and clock unit for providing a current date and time;
the infrared detection unit is used for identifying indoor users;
a light intensity detecting unit for detecting an illumination intensity in a room;
the data acquisition unit is used for acquiring the average sleeping time and the alarm clock setting time in the week of the user according to the historical sleeping habits of the user;
the central control unit is used for controlling the infrared detection unit to identify an indoor user at night under the condition that the date is displayed as weekend, controlling the light intensity detection unit to detect indoor illumination intensity after the infrared detection unit identifies the user, and controlling the timing unit to time after the indoor illumination intensity is initially smaller than preset light intensity;
the central control unit is also used for controlling the sound playing unit to play the ring tone under the condition that the timing duration of the timing unit reaches the average sleep duration and the current time is not earlier than the set time of the alarm clock.
2. The internet of things wall clock of claim 1, wherein the central control unit controls the sound playing unit to play the ring tone on the condition that the timing duration of the timing unit reaches the average sleep duration and the current time is not earlier than the set time of the alarm clock, and the method comprises the following steps:
if the time when the timing duration of the timing unit reaches the average sleep duration is earlier than the alarm clock setting time, the central control unit controls the sound playing unit to play the ring at the alarm clock setting time;
if the time when the timing duration of the timing unit reaches the average sleep duration is not earlier than the set time of the alarm clock, the central control unit controls the sound playing unit to play the ring at the time when the timing duration of the timing unit reaches the average sleep duration.
3. The internet of things wall clock of claim 1, wherein the infrared detection unit comprises:
the particle catching module is used for catching particles in indoor air;
the spectral imaging module is used for emitting infrared light to irradiate the particles and form an infrared absorption spectrum;
the cluster analysis module is used for carrying out cluster analysis on the infrared absorption spectrum to obtain a characteristic absorption peak of the particles;
and the user identification module is used for identifying the indoor user according to the characteristic absorption peak.
4. The internet of things wall clock of claim 1, wherein the light intensity detection unit comprises a photoelectric detector, a pre-amplification module, an AD conversion module and a range conversion module;
the photoelectric detector is used for detecting the indoor illumination intensity and converting the light intensity signal into a photocurrent signal;
the input end of the pre-amplification module is connected with the output end of the photoelectric detector, and the pre-amplification module is used for converting the photocurrent signal into a voltage signal and amplifying the voltage signal;
the input end of the AD conversion module is connected with the output end of the pre-amplification module, and the output end of the AD conversion module is connected with the central control unit;
the range conversion module is respectively connected with the pre-amplification module and the central control unit, and is used for changing the gain of the pre-amplification module by changing the range of the range conversion module;
the central control unit is further used for controlling the range conversion module to change the gain of the pre-amplification module when the output of the pre-amplification module is higher than the input upper limit of the AD conversion module or lower than the input lower limit of the AD conversion module until the output of the pre-amplification module is between the input lower limit and the input upper limit.
5. The internet of things wall clock of claim 4, wherein the central control unit is further configured to:
when the gain of the pre-amplification module is at the maximum value and the output of the pre-amplification module is lower than the input lower limit, controlling the range conversion module to keep the range of the pre-amplification module unchanged;
and when the gain of the pre-amplification module is at a minimum value and the output of the pre-amplification module is higher than the upper input limit, controlling the range conversion module to keep the range of the range conversion module unchanged.
6. The internet of things wall clock of claim 4, wherein the light intensity detection unit further comprises a dark current compensation module for making the input current of the pre-amplification module zero when the photocurrent signal output by the photo detector is zero.
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| CN202010528389.2A CN111694258A (en) | 2020-06-11 | 2020-06-11 | Internet of things wall clock |
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| CN202010528389.2A CN111694258A (en) | 2020-06-11 | 2020-06-11 | Internet of things wall clock |
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Application publication date: 20200922 |