CN113280563B - Method for judging whether refrigerator runs in daytime or at night - Google Patents
Method for judging whether refrigerator runs in daytime or at night Download PDFInfo
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- CN113280563B CN113280563B CN202110584270.1A CN202110584270A CN113280563B CN 113280563 B CN113280563 B CN 113280563B CN 202110584270 A CN202110584270 A CN 202110584270A CN 113280563 B CN113280563 B CN 113280563B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/02—Timing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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- Combustion & Propulsion (AREA)
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a method for judging whether a refrigerator operates in the daytime or at night, and relates to the technical field of refrigerator refrigeration operation control. In the present invention: the environment temperature is continuously collected and recorded by the environment temperature sensor according to the hourly interval. The door opening and closing sensor collects and records the door opening time of the refrigerator. And continuously acquiring and recording data of the environmental temperature and the door opening time of a plurality of days, and analyzing and calculating the highest ring temperature mean value time and the lowest ring temperature mean value time. Analyzing the time period with the longest time interval for opening the door of the refrigerator, and recording the time of opening the door twice corresponding to the time period. And carrying out average calculation on the two door opening moments of the longest door opening time interval of a plurality of continuous days. A night time period is defined in the system, and a day time period is defined in the system. The invention realizes the accurate judgment of the refrigerator running in the daytime/nighttime state only by the way of adding intelligent software without increasing the cost of the refrigerator and only by the main controller of the electric control refrigerator, thereby being convenient for controlling the refrigeration running state of the refrigerator in an off-line and intelligent judgment way.
Description
Technical Field
The invention belongs to the technical field of refrigerator refrigeration operation control, and particularly relates to a method for judging whether a refrigerator operates in the daytime or at night.
Background
With the improvement of living standard of people, refrigerators have gone into thousands of households and become necessities of daily life of people. The refrigerator is the biggest difference from other household appliances, namely the refrigerator is always in a refrigeration running state; in the operation of the refrigerator, noise is generated due to the operation of the compressor and the fan. The noise of the refrigerator can be directly sensed by a user, so that the quality problem of the refrigerator which is complained by the user is easily caused.
According to feedback data analysis of market user quality problems, the environments of the users using the refrigerators are different, and the noise feeling of the same refrigerator is different. For example, in the same refrigerator, the user may feel the noise less noticeable in the daytime when the surrounding environment is noisy, but the user may become intolerant at night when the user is quiet, and particularly, when the user often places the refrigerator in a position close to a bedroom, the operation noise of the refrigerator may seriously affect the sleep and rest of the user, and often complain that "the user sleeps at night and feels that the sound of the refrigerator in the home becomes very loud".
If the information that the refrigerator operates in the daytime or at night can be obtained, the noise of the refrigerator can be reduced to the maximum extent through differentiated intelligent control on the premise of ensuring the basic refrigerating performance of the refrigerator, such as reducing the rotating speed of a compressor, reducing the rotating speed of a fan, avoiding means such as defrosting at night and the like, so that the operating noise of the refrigerator is reduced, the refrigerator is recovered to a normal operating state in the daytime, and customers can feel more comfortable when using the refrigerator. Although the noise of the refrigerator can be reduced by various noise reduction technologies, the market intelligent refrigerator is in a negligible proportion, an internet of things system is lacked in a mainstream refrigerator electric control system, time parameters cannot be obtained through a network mode, and the refrigerator cannot know whether the refrigerator runs in the day or at night.
Refrigerator manufacturers also study the night operation of the refrigerator, and search related patents, methods usually use a refrigerator employing a light sensor as a basis, and collect luminance brightness information through a refrigerator control system, or add other available information on the basis to judge whether the refrigerator operates in the daytime or at night, so as to optimally control the noise operation of the refrigerator.
A method for reducing the noise of a refrigerator at night and a light-operated refrigerator thereof are disclosed in prior patent 1(CN011153903), and an air-cooled frequency-variable multi-door refrigerator which works with low noise at night is disclosed in patent 2(CN 201497272U). The method for judging whether the refrigerator operates in the daytime or at night provided by the patent 1 and the patent 2 has higher cost because the photosensitive element is adopted for light sensing to judge whether the refrigerator operates in the daytime or at night; meanwhile, the environment of the household refrigerator storage is possibly influenced by influence factors such as positions, shelters, indoor light and the like, and the judgment is inaccurate when the light of the photosensitive element is unstable; the judgment of day/night usually needs to set a brightness threshold, one side of the threshold is day, and the other side of the threshold is night, so that the judgment is easily influenced by the brightness of indoor illumination light, and the misjudgment is caused, thereby the control strategy of wrong refrigerator output is realized.
A method and an apparatus for reducing noise at night for a cooling device are disclosed in prior patent 3(CN102175068A), and a method and an apparatus for controlling an operation mode of a refrigerator are disclosed in prior patent 4(CN 105571267A).
The invention patent of patent 3 mainly determines whether the refrigerator operates in the night mode by setting a time zone, but the selection of the time zone is relative and has many uncertain factors. For example, according to the method, if the time zone is set to be 22 pm to 6 am, some users may fall asleep at 22 pm or so, and the use of the refrigerator by the users is not affected; some users may go to sleep at 23, which may affect the user's use of the refrigerator. Also, once determined, the time zones cannot be dynamically changed, for example, some users do not have a fixed time to fall asleep at night, sometimes fall asleep at 21 pm, and sometimes fall asleep at 23 pm, in which case the solution of the patent is not feasible.
In the patent 4, information such as seasons and the like is added on the basis of adding the photosensitive element to the refrigerator, and besides the defects of the photosensitive element, the acquisition of the seasonal information and the time information is generally realized by an internet of things technology of a wifi module, so that the method is not mainstream in the refrigerator industry at present and cannot be popularized in a large quantity; meanwhile, the acquisition of information such as seasons and the like is influenced by regions and practical environments, the information acquisition is complicated, and the accuracy is difficult to ensure if the information amount is too small.
Patent 5(CN107490238A) discloses a method for judging day and night by an intelligent refrigerator according to the use habits of users. The intelligent refrigerator related to patent 5 is provided with a wifi module and an MCU timing module, and generally needs to be realized through an internet of things technology of the wifi module, and the intelligent refrigerator capable of acquiring time through the wifi module, so that the method for judging the daytime/nighttime period according to the time is a more direct method, but the judging mode is not suitable for the refrigerator without a wifi function and is also not suitable for an area without wifi signal coverage; meanwhile, the use habits of users are different, and the rules are difficult to be counted and analyzed, so that the scheme cannot be popularized in application.
Disclosure of Invention
The invention aims to provide a method for judging whether a refrigerator runs in the daytime or at night, which can accurately judge whether the refrigerator runs in the daytime or at night by only using an electronic control refrigerator with a main controller in an intelligent mode under the condition that a photoelectric sensor and a WIFI module internet of things are not used.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a method for judging whether a refrigerator runs in the daytime or at night, which comprises a main controller, a door switch sensor and an environment temperature sensor, wherein the main controller, the door switch sensor and the environment temperature sensor are arranged in the refrigerator, and a timing module is arranged in the main controller.
The method comprises a refrigerator operation parameter data acquisition and analysis method and a refrigerator working mode control method;
(1) the refrigerator operation parameter data acquisition and analysis method comprises the following steps:
the refrigerator is powered on and runs according to a built-in refrigeration control program.
And secondly, continuously acquiring and recording the ambient temperature by the environment temperature sensor at hourly intervals in 24 hours every day.
And thirdly, in 24 hours every day, the door opening and closing sensor collects and records the door opening time of the refrigerator.
Fourthly, continuously collecting and recording data of the environmental temperature and the door opening time of a plurality of days, analyzing and calculating the time of the highest ring temperature mean value, and recording the time as ThighAnd the lowest ring temperature mean time, recorded as Tlow。
Analyzing the time section with the longest time interval for opening the door of the refrigerator in 24 hours every day, recording the time of opening the door twice corresponding to the time section and recording the time as Tq、ThWherein T isqEarlier than Th(ii) a Two-time door opening time T of longest door opening time interval for a plurality of continuous daysq、ThCarrying out average value calculation to obtain long interval door opening average value time
Will time
Several hours after delay is defined as TstartWill be at time TlowSeveral hours after delay is defined as Tlow+nComparison of Tlow+nAnd
early in time is defined as Tcentre(ii) a Defining the night time period in the system as follows: [ T ]start，Tcentre) (ii) a The system defines the daytime time period as follows: [ T ]centre，Tstart)。
(2) The refrigerator working mode control method comprises the following steps: and correspondingly switching the working modes of the refrigeration equipment according to the night time period and the day time period which are finally defined in the system.
Firstly, when the time signal is a night time signal, the refrigeration equipment runs a night working mode; and secondly, when the time signal is a daytime time period signal, the refrigeration equipment operates in a daytime working mode.
As a preferred technical scheme of the invention, the environment temperature sensor and the door switch sensor are connected with the input end of the refrigerator main controller.
As a preferred technical scheme of the invention, the main controller is arranged on a main control panel of the refrigerator, a main control unit is arranged in the main controller, and a variable frequency compressor driving unit, a variable speed fan driving unit and a temperature sensing unit which are connected with the main control unit are arranged in the main controller. The variable-speed fan driving unit is connected with the variable-speed fan, and the temperature sensing unit is connected with the environment temperature sensor and the room temperature sensor of the refrigerator.
As a preferable technical scheme of the invention, the environment temperature sensor is arranged at the top position of the refrigerator body.
As a preferred technical scheme of the invention, the door switch sensor is arranged at the position of a middle beam of a refrigerator body.
As a preferred technical scheme of the invention, the main controller is internally provided with the off-line system time, the off-line system time period is 24 h/day, and the timing module acquires the off-line system time in real time.
As a preferred technical scheme of the invention, a timing module in the main controller carries out time accumulation by using the power supply power frequency of 50 Hz.
As a preferred technical scheme of the invention, at a certain period time delta T, the method carries out corresponding parameter acquisition and analysis calculation again on the night time period and the day time period in the refrigerator operation parameters to obtain new parameters of the night time period and the day time period, and replaces the previous parameters of the night time period and the day time period. Wherein, Delta T is epsilon [7, 10] day.
The invention has the following beneficial effects:
1. under the condition that a photoelectric sensor and a WIFI module internet of things technology are not used, the refrigerator cost is not increased only by arranging the main controller of the electric control refrigerator, and the refrigerator running state can be accurately judged only by adding intelligent software, so that the refrigerator running state can be conveniently controlled in an offline and body intelligent judgment manner;
2. the judging method provided by the invention can be used for mainstream electric control refrigerators in the existing market, has high reliability, does not need to add other control components, and is easy to popularize and apply.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart of a refrigerator operation parameter data collection and analysis method according to the present invention;
fig. 2 is a schematic block diagram of an electric appliance of the main controller of the electric control refrigerator in the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The refrigerator is placed in a family, the ambient temperature of the family generally and the ambient temperature of the outside are periodically and synchronously changed within hours, the temperature reaches a peak generally around 12-14 noon, then the temperature gradually drops until reaching a valley generally around 6 am; the refrigerator is opened by a user more in the daytime, the number of times of opening the refrigerator door is reduced after the refrigerator enters 18 o' clock at night, the user usually starts to sleep 2-3 hours after the refrigerator is opened for the last time, and the refrigerator is controlled to be in a night refrigerating mode after the user sleeps, so that the running noise of the refrigerator is reduced. According to the door opening times and habits of the user, the time interval is long, namely the refrigerator is basically at night, and the user thinks that the refrigerator enters the working time period in the daytime when the door is opened for the first time every day. Meanwhile, the environment temperature is used for judging time, and after the common temperature valley is reached and the user finishes opening the door for the last time, the refrigerator is considered to be in the working time period in the daytime.
Example two
1. Selecting an electric control refrigerator which is provided with an environment temperature sensor, a door switch sensor, a timing module and a main controller, electrifying the refrigerator, and operating the refrigerator according to the existing built-in refrigeration control program.
2. And continuously collecting and recording the ambient temperature by an annular temperature sensor in 24 hours every day.
3. The door opening time was synchronously recorded over 24 hours.
Description of the invention: the timing of the steps 2 and 3 is realized by a timing module arranged in the main controller of the refrigerator, the time calculation principle is that the time is accumulated by power supply frequency of 50Hz, each time interval period is 0.02 second, and the time can be converted into 4.32 multiplied by 10 in 24 hours6A period of time. Recording and normalizing the period of starting timing to be 0, recording and converting the period of recorded data into interval time of every 4.32 multiplied by 106The time period is converted into 24 hours and is repeated.
4. Continuously recording the environmental temperature data for 3 days, carrying out weighted average on the time of the highest temperature and the lowest temperature, and defining the average value of the highest temperature and the average value of the highest temperature as Thigh/Tlow。
Description of the drawings: continuously recording the environmental temperature data for 3 days, wherein the time of the highest temperature is respectively the interval from the beginning of timing and the temperature is respectively: 3.5 hours/26.8 ℃, 3.9 hours/26.1 ℃, 3.7 hours/27.3 ℃; the time T at which the lowest temperature occurs is respectively the interval from the start of the timing and the temperature: 15.6 hours/21.9 ℃, 15.2 hours/22.3 ℃, 15.8 hours/21.7 ℃;the maximum temperature time average value and the maximum temperature time average value distance timing interval are 3.7 hours/15.3 hours; defining the highest temperature time as time 12:00, recording according to 24-hour timing method, then Thigh/TlowThe method of this step is time-converted in the following steps 12:00/5: 36.
5. Within each 24 hours, after the longest time interval of opening the door by the user appears, carrying out weighted average on the two door opening times corresponding to the time interval, and defining the average value of the two door opening times as Tq/ThWherein T ishEarlier than Tq。
Description of the drawings: continuously recording the door opening data of 3 days, wherein the first door opening time of a user is as follows: 7:58, 7:16, 8: 09; the user last time is respectively as follows: 21:56, 22:15, 22: 36; the average value of the two door opening times is defined as Tq/Th＝22:16/7:48。
6. Will time TFront sideTwo hours after delay is defined as Tstart(ii) a Will time TlowTwo hours after delay is defined as Tlow+2Comparison of Tlow+2And ThThe latter time being defined as Tcentre(ii) a Then { Tstart、TcentreThe time period between { T } is defined as the night time period, { T }centre、TstartThe time period between is defined as the daytime period.
Description of the drawings: t isqTwo hours after the delay, the time is 24:16, and the time is defined as T according to the 24-hour timing methodstart0: 16; comparison Tlow+27:36 and ThTime T is defined as 7:48centre7: 48; then { Tstart、TcentreTime periods between {0:16, 7:48} are night time periods, { Tcentre、TstartThe time period between {7:48, 0:16} is defined as the daytime time period.
7. And switching the working mode of the refrigeration equipment according to the time signal, wherein when the time signal is a night working signal, the refrigerator operates in the night working mode, and when the time signal is a day working signal, the refrigerator operates in the day working mode.
Description of the drawings: the refrigerator runs in a time period of {0:16, 7:48}, such as 8:30, and a night working mode is run; the refrigerator is operated in the day mode, such as at 16:26, during the 7:48, 0:16 time period.
In the description herein, references to the terms "embodiment" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. A method for judging whether a refrigerator operates in the daytime or at night is characterized in that:
the refrigerator door temperature sensor comprises a main controller, a door switch sensor and an environment temperature sensor, wherein the main controller is arranged in the refrigerator, and a timing module is arranged in the main controller;
the method comprises a refrigerator operation parameter data acquisition and analysis method and a refrigerator working mode control method;
(1) the refrigerator operation parameter data acquisition and analysis method comprises the following steps:
firstly, powering on a refrigerator, and operating the refrigerator according to a built-in refrigeration control program;
secondly, continuously collecting and recording the ambient temperature by the environment temperature sensor at hourly intervals in 24 hours every day;
thirdly, in 24 hours every day, a door opening and closing sensor collects and records the door opening time of the refrigerator;
fourthly, continuously collecting and recording data of the environmental temperature and the door opening time of a plurality of days, analyzing and calculating the time of the highest ring temperature mean value, and recording the time as ThighAnd the lowest ring temperature mean time, recorded as Tlow；
Analyzing the time section with the longest time interval for opening the door of the refrigerator in 24 hours every day, recording the time of opening the door twice corresponding to the time section and recording the time as Tq、ThWherein T isqEarlier than Th；
Two-time door opening time T of longest door opening time interval for a plurality of continuous daysq、ThCarrying out average value calculation to obtain long interval door opening average value time
Will time
Several hours after delay is defined as TstartTime T tolowSeveral hours after delay is defined as Tlow+nComparison of Tlow+nAnd
early in time is defined as Tcentre；
Defining the night time period in the system as follows: [ T ]start，Tcentre)；
The system defines the daytime time period as follows: [ T ]centre，Tstart)；
(2) The refrigerator working mode control method comprises the following steps:
correspondingly switching the working modes of the refrigeration equipment according to the night time period and the daytime period which are finally defined in the system;
firstly, when the time signal is a night time signal, the refrigeration equipment runs a night working mode;
and secondly, when the time signal is a daytime time period signal, the refrigeration equipment operates in a daytime working mode.
2. The method of claim 1, wherein the method comprises:
and the environment temperature sensor and the door switch sensor are connected with the input end of the refrigerator main controller.
3. The method of claim 1, wherein the method comprises:
the main controller is arranged on a main control panel of the refrigerator, a main control unit is arranged in the main controller, and a variable frequency compressor driving unit, a variable speed fan driving unit and a temperature sensing unit which are connected with the main control unit are arranged in the main controller;
the variable-speed fan driving unit is connected with the variable-speed fan, and the temperature sensing unit is connected with the environment temperature sensor and the room temperature sensor of the refrigerator.
4. The method of claim 1, wherein the method comprises:
the environment temperature sensor is arranged at the top of the refrigerator body.
5. The method of claim 1, wherein the method comprises:
the door switch sensor is installed at the middle beam position of the refrigerator body.
6. The method of claim 1, wherein the method comprises:
the main controller is internally provided with off-line system time, the off-line system time period is 24 h/day, and the timing module acquires the off-line system time in real time.
7. The method of claim 1, wherein the method comprises:
and a timing module in the main controller accumulates time by using power supply power frequency of 50 Hz.
8. The method of claim 1, wherein the method comprises:
every certain period time delta T, carrying out corresponding parameter acquisition and analysis calculation on the night time period and the day time period in the refrigerator operation parameters again to obtain new parameters of the night time period and the day time period, and replacing the previous parameters of the night time period and the day time period;
wherein, Delta T is epsilon [7, 10] day.
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2021
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| JPH0391633A (en) * | 1989-09-01 | 1991-04-17 | Hitachi Ltd | Thermal accumulation type heat source device and thermal accumulating amount control method |
| JPH11282058A (en) * | 1998-03-27 | 1999-10-15 | Anritsu Corp | Method and device for judging visibility range by picture |
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