CN111854319A - Refrigerator control system of movable thermopile sensor and application method - Google Patents
Refrigerator control system of movable thermopile sensor and application method Download PDFInfo
- Publication number
- CN111854319A CN111854319A CN202010729651.XA CN202010729651A CN111854319A CN 111854319 A CN111854319 A CN 111854319A CN 202010729651 A CN202010729651 A CN 202010729651A CN 111854319 A CN111854319 A CN 111854319A
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- Prior art keywords
- refrigerator
- sensor
- thermopile
- temperature
- thermopile sensor
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Classifications
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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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control 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
- F25D2500/00—Problems to be solved
- F25D2500/06—Stock management
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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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/06—Sensors detecting the presence of a product
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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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
Abstract
The invention discloses a refrigerator control system and an application method of a movable thermopile sensor, and relates to the technical field of application of thermopile infrared sensors in refrigerators. In the invention: infrared signals generated by the heat of the articles on the refrigerator shelf are acquired by the thermopile sensor and are subjected to sensing analysis; the single chip microcomputer obtains and analyzes temperature information sensed and monitored by the thermopile sensor, judges the entering state information of the overheated or overcooled object in the refrigerator, and drives and controls the motion speed of the stepping motor and the motion logic of the position sensor on the control guide rail. According to the invention, the internal temperature of the refrigerator is quickly sensed in real time through the high-precision non-contact thermopile infrared sensor, the motor and the corresponding periodic motion guide rail are designed at the position of the non-contact thermopile infrared sensor, and the motion periodic temperature change in the refrigerator is detected during the action period, so that a stable temperature detection mode is formed, and the omission detection of an article temperature blind area on the shelf in the refrigerator is avoided.
Description
Technical Field
The invention relates to the technical field of application of a thermopile infrared sensor in a refrigerator, in particular to a refrigerator control system and an application method of a movable thermopile sensor.
Background
The refrigerator is a product of modern society, it is the good place that stores food, the refrigerator has brought a lot of convenience to our daily life, the effect of refrigerator is mainly refrigeration, but can see that traditional refrigerator is not intelligent enough in the aspect of refrigeration, when the user puts into a bottle of boiling water that rolls and scalds in the refrigerator in hot summer, because the temperature sensor that traditional refrigerator used is NTC sensor, confirm the indoor ambient temperature of refrigerator through the temperature that responds to around, so the refrigerator can not respond to the refrigerator cold storage in the twinkling of an eye, the temperature change of freezer, when the refrigerator is used for storing special thing, or to the article that the storage temperature required is higher, for example: seafood, tea, breast milk, etc. When an overheated object is put into the refrigerator, if the refrigeration cannot be started in time, the taste of the seafood is damaged, and the tea leaves are oxidized.
The prior patent documents one: the refrigerator guide rail, the refrigerator and the installation method of the refrigerator guide rail disclose: CN106016945B, which describes the installation method of the refrigerator rail, does not relate to the application of the intelligent infrared sensor, and the patent prefers to the replacement of the installation method of the traditional rail, rather than the rail matching with the thermopile sensor.
The second prior patent document: a non-contact infrared sensor for a refrigerator, publication No.: CN208704297U, this patent accomplishes the temperature to the refrigerator through infrared sensor, lens and control circuit and responds to, but because infrared can't penetrate glass and article, so can't the temperature of real-time measurement article in the refrigerator.
In summary, the infrared temperature measurement method cannot penetrate through the object, so that the object in the refrigerator is too many to cause shielding, and the temperature of the object cannot be measured by the traditional temperature measurement method.
Aiming at the defects that the existing refrigerator can not quickly sense the temperature in the refrigerator and can not efficiently and accurately correspond to refrigeration regulation, how to effectively solve the problem which needs to be solved urgently.
Disclosure of Invention
The invention provides a technical scheme for detecting the temperature of articles in a refrigerator in real time by matching a non-contact thermopile infrared sensor with a transmission guide rail, which is characterized in that the temperature in the refrigerator is quickly sensed in real time by the high-precision non-contact thermopile infrared sensor, and a motor and the guide rail are designed at the position of the non-contact thermopile infrared sensor to detect the temperature change of the refrigerator in real time, so that the operation such as the refrigeration driving control of the corresponding high-efficiency refrigerator is facilitated.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention provides a refrigerator control system of a movable thermopile sensor, wherein a singlechip type main controller is arranged in a refrigerator, a guide rail and a stepping motor are arranged in the middle of a refrigerator refrigerating chamber shelf, and a plurality of weight sensors are arranged on the refrigerator shelf and comprise a guide rail structure used in the wall surface of a refrigerator chamber and a non-contact thermopile infrared sensor arranged in the guide rail; the stepping motor is connected with the non-contact thermopile infrared sensor in a matching way through a transmission structure of the stepping motor; the weight sensor is connected with the MCU in the refrigerator through a signal transmission line; the non-contact thermopile infrared sensor is connected with a main controller in the refrigerator through a signal transmission line; the main controller in the refrigerator is connected with the stepping motor through a control circuit in a driving way; the main controller in the refrigerator is connected with a compressor and an air door of the refrigerator in a driving mode through a control circuit.
As a preferred technical solution of the present invention, a weight sensor detects weight information of an article on a shelf at a current position and a change state of the weight of the article; sensing and detecting infrared information of an article at the current position by using a thermopile sensor; a main controller in the refrigerator sets a time interval for reading the temperature in the refrigerator room sensed by the thermopile sensor.
As a preferred technical scheme of the invention, a position sensor or a plurality of travel switches are embedded and installed on a guide rail structure in a refrigerator shelf.
As a preferred technical scheme of the invention, at least one thermopile sensor is arranged in the middle of each layer of glass shelf in the refrigerator chamber.
A refrigerator control method of a movable thermopile sensor includes:
in the first step, the refrigerator is powered on, and the thermopile sensor and the weight sensor are started.
And in the second link, the weight sensor on the refrigerator shelf carries out real-time sensing monitoring on the weight of the object on the induction shelf, and judges the state that the object enters the refrigerator.
And in the third step, infrared signals generated by the heat of the articles on the refrigerator shelf are acquired by the thermopile sensor and are subjected to sensing analysis, and the current temperature inside the refrigerator is transmitted to a user.
And in the fourth step, the singlechip acquires and analyzes temperature information sensed and monitored by the thermopile sensor, judges the entering state information of the overheated or overcooled object in the refrigerator, and drives and controls the motion speed of the stepping motor and the motion logic of the position sensor on the control guide rail.
And in the fifth step, the single chip microcomputer analyzes the current states of the articles and the temperature information in the refrigerator, judges the temperature rising or lowering state in the refrigerator chamber and drives and regulates and controls a refrigerator compressor and an air door.
As a preferred technical scheme of the invention, the weight sensor converts the weight and the weight change position information into electric signals, and after the single chip microcomputer obtains corresponding signals, the stepping motor is driven to control the thermopile sensor to move back and forth on the guide rail at a constant speed.
As a preferred technical scheme of the invention, a silicon-based lens of a thermopile sensor carries out infrared condensation on heat infrared information of an article, an electromotive force is generated by an MEMS thermopile and transmitted to an MCU through high-precision operational amplifier, and the MCU outputs the temperature into a level signal through digital-analog conversion; the thermopile sensor MCU amplifies the electric signal and inputs the amplified electric signal to the single chip microcomputer controller, and the single chip microcomputer controller converts the electric signal into temperature to output.
As a preferred technical scheme of the invention, the single chip microcomputer control system reads the temperature information sensed and monitored by the thermopile sensor once every M seconds, and drives and controls the stepping motor to link the thermopile sensor to move on the guide rail at a constant speed so as to sense the real-time temperature of each space in the refrigerator.
Wherein M is 0.1, 0.2, 0.3, or any integer multiple of 0.1.
As a preferred technical scheme of the invention, the singlechip control system drives and controls a stepping motor in the refrigerator and is used for controlling the thermopile infrared sensor to periodically move on the guide rail at a constant speed.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the internal temperature of the refrigerator is quickly sensed in real time through the high-precision non-contact thermopile infrared sensor, the motor and the corresponding periodic motion guide rail are designed at the position of the non-contact thermopile infrared sensor, the motion periodic temperature change in the refrigerator is detected during the action period, a stable temperature detection mode is formed on the basis of the original high-precision sensor, the omission detection of the heat and temperature dead zones of articles on the shelf in the refrigerator is avoided, and the corresponding high-efficiency refrigerator refrigeration driving control and other operations are facilitated.
Drawings
FIG. 1 is a schematic view of the structure of the refrigerator and the internal components of the refrigerator according to the present invention;
FIG. 2 is a logic diagram of a Main Controller (MCU) and some modules in the present invention;
FIG. 3 is a schematic diagram of a refrigerator control method for a movable thermopile sensor in accordance with the present invention;
FIG. 4 is a logic flow diagram of a method for controlling a refrigerator with a movable thermopile sensor according to the present invention;
wherein: 1-refrigerator body; 2-a main controller; 3-a guide rail; 4-non-contact thermopile infrared sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention relates to a refrigerator control system of a movable thermopile sensor and an application method.
Example one
The installation positions of the components in the invention take a refrigerating chamber as an example, a guide rail and a stepping motor are installed in the middle of a shelf of the refrigerating chamber, a thermopile sensor is placed on the guide rail, and the motor drives the thermopile sensor to complete regular movement in the refrigerator.
With reference to fig. 1 to 4, the installation, information sensing acquisition and analysis, and corresponding driving control principles of the movable thermopile sensor in the refrigerator are as follows:
(1) and powering on the refrigerator, and starting the thermopile sensor and the weight sensor.
After articles are put in the refrigerator, the weight sensor converts the weight into an electric signal, the single chip microcomputer obtains the signal, the stepping motor is driven to control the thermopile sensor to move back and forth on the guide rail at a constant speed, the infrared signal is focused by the silicon-based lens of the thermopile sensor, an electromotive force is generated through the MEMS thermopile, the electromotive force is transmitted to the MCU through high-precision operational amplification, and the MCU outputs the temperature into a level signal through digital-analog conversion, so that the current temperature in the refrigerator is transmitted to a user.
(2) The thermopile infrared sensor rotates in the box body at a constant speed, so a back-and-forth period is set, the moving thermopile sensor measures the temperature of each area in the back-and-forth period obtained through analysis and calculation of the single chip microcomputer, and the single chip microcomputer analyzes whether the temperature value of each area is normal or not and calculates the average temperature of each area.
(3) The first condition is as follows: if the single chip microcomputer concludes that the temperature of the articles put into the refrigerator is increased, the temperature of the refrigerator is increased. The compressor is started or the rotating speed of the compressor is increased, and meanwhile, the air door is opened to increase the air volume of the refrigerating chamber or the freezing chamber, so that the refrigerating performance of the refrigerator is improved; when the thermopile sensor recognizes that the indoor temperature tends to a normal value, the performance of the cooling part is shut down or degraded accordingly.
(4) Case two: when the single chip microcomputer concludes that the temperature of the articles put in the refrigerator is reduced. The compressor is closed or the rotating speed of the compressor is reduced, and meanwhile, the air door is closed, so that the air quantity of the refrigerating chamber or the freezing chamber is reduced, and the refrigerating performance of the refrigerator is reduced; when the thermopile sensor recognizes that the indoor temperature tends to a normal value, the performance of the cooling part is correspondingly increased or enhanced.
Example two
In the practical application process of the invention:
(1) because infrared light cannot penetrate through glass, a thermopile sensor is required to be added in the middle of each glass shelf, and the movement of the thermopile sensor is controlled by a stepping motor.
(2) Meanwhile, considering that some uncertain factors possibly exist to influence the work of the stepping motor and the thermopile sensor, the single chip microcomputer control system is set to work cooperatively every half hour or 15 minutes to measure the temperature in the currently monitored refrigerator room; if a large temperature difference occurs, the refrigeration system is operated or driven to complete temperature control.
(3) The thermopile sensor can read the temperature once every 0.1S through the single chip microcomputer control system, and the temperature can be accurate to within 1 ℃.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides a refrigerator control system of mobilizable thermopile sensor, the refrigerator embeds there is single chip microcomputer formula main control unit, and installation guide rail and step motor in the middle of the refrigerator walk-in shelf set up the weight sensor of a plurality of positions on the refrigerator shelf, its characterized in that:
the device comprises a guide rail structure used in the wall surface of the refrigerator inner chamber, and a non-contact thermopile infrared sensor installed in the guide rail;
the stepping motor is connected with the non-contact thermopile infrared sensor in a matching way through a transmission structure of the stepping motor;
the weight sensor is connected with an MCU in the refrigerator through a signal transmission line;
the non-contact thermopile infrared sensor is connected with a main controller in the refrigerator through a signal transmission line;
the main controller in the refrigerator is connected with the stepping motor through a control circuit in a driving way;
the main controller in the refrigerator is connected with a compressor and an air door of the refrigerator in a driving mode through a control circuit.
2. The mobile thermopile sensor refrigerator control system of claim 1, wherein:
the weight sensor detects the weight information and the weight change state of the articles on the shelf at the current position;
the thermopile sensor senses and detects infrared information of an article at the current position;
a main controller in the refrigerator sets a time interval for reading the temperature in the refrigerator room sensed by the thermopile sensor.
3. The mobile thermopile sensor refrigerator control system of claim 1, wherein:
and a position sensor or a plurality of travel switches are embedded and installed on the guide rail structure in the refrigerator shelf.
4. The mobile thermopile sensor refrigerator control system of claim 1, wherein:
at least one thermopile sensor is arranged in the middle of each layer of glass shelf in the refrigerator chamber.
5. A refrigerator control method of a movable thermopile sensor is characterized in that:
in the first step, a refrigerator is powered on, and a thermopile sensor and a weight sensor are started;
in the second step, a weight sensor on the refrigerator shelf carries out real-time sensing monitoring on the weight of the object on the induction shelf, and the state of the object entering the refrigerator is judged;
in the third step, infrared signals generated by the heat of the articles on the refrigerator shelf are acquired by the thermopile sensor and are subjected to sensing analysis, and the current temperature inside the refrigerator is transmitted to a user;
a fourth step, the single chip microcomputer acquires and analyzes temperature information sensed and monitored by the thermopile sensor, judges the entering state information of the overheated or overcooled object in the refrigerator, and drives and controls the movement speed of the stepping motor and the movement logic of the position sensor on the control guide rail;
and in the fifth step, the single chip microcomputer analyzes the current states of the articles and the temperature information in the refrigerator, judges the temperature rising or lowering state in the refrigerator chamber and drives and regulates and controls a refrigerator compressor and an air door.
6. The method of claim 5, wherein the method comprises the steps of:
the weight sensor converts the weight and the weight change position information into electric signals, and after the single chip microcomputer obtains corresponding signals, the stepping motor is driven to control the thermopile sensor to move back and forth on the guide rail at a constant speed.
7. The method of claim 5, wherein the method comprises the steps of:
the silicon-based lens of the thermopile sensor carries out infrared condensation on heat infrared information of an article, an electromotive force is generated through the MEMS thermopile and is transmitted to the MCU through high-precision operational amplification, and the MCU outputs the temperature into a level signal through digital-analog conversion;
the thermopile sensor MCU amplifies the electric signal and inputs the amplified electric signal to the single chip microcomputer controller, and the single chip microcomputer controller converts the electric signal into temperature to output.
8. The method of claim 5, wherein the method comprises the steps of:
the single chip microcomputer control system reads temperature information sensed and monitored by the thermopile sensor once every M seconds, drives and controls the stepping motor, links the thermopile sensor to move on the guide rail at a constant speed and senses real-time temperature of each space in the refrigerator;
wherein M is 0.1, 0.2, 0.3, or any integer multiple of 0.1.
9. The method for controlling a refrigerator with a movable thermopile sensor of claim 5 or 6 or 8, wherein:
the single chip microcomputer control system drives and controls a stepping motor in the refrigerator and is used for controlling the thermopile infrared sensor to periodically move on the guide rail at a constant speed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010729651.XA CN111854319A (en) | 2020-07-27 | 2020-07-27 | Refrigerator control system of movable thermopile sensor and application method |
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| CN202010729651.XA CN111854319A (en) | 2020-07-27 | 2020-07-27 | Refrigerator control system of movable thermopile sensor and application method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833612A (en) * | 2021-01-04 | 2021-05-25 | 格力电器（武汉）有限公司 | Water defrosting adjusting method and system for refrigeration house air conditioner |
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| JP2010032198A (en) * | 2008-07-01 | 2010-02-12 | Panasonic Corp | Refrigerator |
| CN102192575A (en) * | 2010-03-12 | 2011-09-21 | 三星电子株式会社 | Air conditioner and control method thereof |
| CN102338446A (en) * | 2010-07-16 | 2012-02-01 | 三菱电机株式会社 | Air conditioner |
| CN207262813U (en) * | 2017-10-18 | 2018-04-20 | 湖州升谱电子科技有限公司 | A kind of Internet of Things intelligent refrigerator |
| CN207729895U (en) * | 2017-12-29 | 2018-08-14 | 众智光电科技股份有限公司 | Energy-saving refrigerator |
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2020
- 2020-07-27 CN CN202010729651.XA patent/CN111854319A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1153894A (en) * | 1996-01-04 | 1997-07-09 | Lg电子株式会社 | Temprature sensing apparatus of refrigerator |
| JP2010032198A (en) * | 2008-07-01 | 2010-02-12 | Panasonic Corp | Refrigerator |
| CN101642268A (en) * | 2008-08-05 | 2010-02-10 | 三菱电机株式会社 | Refrigerating method and refrigerator-freezer for food |
| CN101419093A (en) * | 2008-11-25 | 2009-04-29 | 西安交通大学 | Sensing device for on-line monitoring temperature rising state for high voltage switch electrical equipment |
| CN102192575A (en) * | 2010-03-12 | 2011-09-21 | 三星电子株式会社 | Air conditioner and control method thereof |
| CN102338446A (en) * | 2010-07-16 | 2012-02-01 | 三菱电机株式会社 | Air conditioner |
| CN207262813U (en) * | 2017-10-18 | 2018-04-20 | 湖州升谱电子科技有限公司 | A kind of Internet of Things intelligent refrigerator |
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| CN112833612A (en) * | 2021-01-04 | 2021-05-25 | 格力电器（武汉）有限公司 | Water defrosting adjusting method and system for refrigeration house air conditioner |
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Application publication date: 20201030 |