CN102636433B - A kind of food freshness detection means and the refrigerator using this device - Google Patents
A kind of food freshness detection means and the refrigerator using this device Download PDFInfo
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- CN102636433B CN102636433B CN201210036422.5A CN201210036422A CN102636433B CN 102636433 B CN102636433 B CN 102636433B CN 201210036422 A CN201210036422 A CN 201210036422A CN 102636433 B CN102636433 B CN 102636433B
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Abstract
The invention discloses a kind of food freshness detection means, the gas circle collection air channel surrounding including encapsulant, have gas collecting hole and air outlet on described gas circle collection air channel, in described gas circle collection air channel, be disposed with the particle filter being connected with analysis controlling unit respectively, getter device and gas sensor array along airflow direction.This device is analyzed using the gas that food is distributed, quickly judge rotten food, result is accurate, it is applied to the freshness detection of all food, and can quickly determine rotten food variety, easy to use, device take up room little, can very easily be arranged on storage food device in.
Description
Technical field
The present invention relates to a kind of intelligent food inspection device, specifically, it is to be related to a kind of food freshness detection dress
Put and the refrigerator using this device.
Background technology
Refrigerator experienced the history of decades so far from invention, and present refrigerator memory space is increasing, store function
More and more, user stores the fresh food of numerous categories when using refrigerator it will usually in refrigerator.So thing followed
Problem is that a lot of users can often forget about the shelf-life being placed on various food in refrigerator, often waits until to find that food is seriously corrupt
When being found, late it is impossible to edible.The discarding not only causing spoiled food wastes, and corrupt food is distributed simultaneously
The gases such as the ethylene that goes out, ammonia also accelerate the corruption of other food in cabin, lead to bigger waste.
Shelf-life in order to remind user's food closes on, and has some refrigerators to carry RFID scan function, Granted publication
Number disclose a kind of intelligent refrigerator for the utility model patent of CN 201837198U, include being provided with control module, identify and be provided with
The RFID control system of the antenna of the article of RFID chip, RFID reader and display screen, RFID control system is connect by antenna
Store up the food information being provided with RFID chip existing in refrigerator, and be input to control module after decoding by RFID reader
Row processes and display result is shown on display screen.The shortcoming of this kind of refrigerator is using RFID scanning theory, can only be directed to
The food having electronic tag is scanned.Further, since some in season fruit and vegetable foods, handling process is easily subject to external force
Extruding etc. it may occur that structure change drastically, cause local corrupt, or even accelerate the putrid and deteriorated of whole fruit, electronics is just
Sign and but can not record this kind of change, lead to information errors.
Based on this, how to research and develop a kind of refrigerator with detection food freshness, can be with the fresh journey of active detecting food
Degree, testing result is reliable, be present invention mainly solves problem.
Content of the invention
The present invention can only be according to quality period prompting expired food soon in order to solve the fresh recording equipment of existing food, and can not
Intelligent Measurement goes bad food, a kind of shortcoming being easily caused information errors, there is provided food freshness detection means, and adopts
With the refrigerator of this device, rotten food can be analyzed with active detecting, information is accurate.
In order to solve above-mentioned technical problem, the present invention employs the following technical solutions and is achieved：
A kind of food freshness detection means, the gas circle collection air channel surrounding including encapsulant, described gas
Gas collecting hole and air outlet are had on circle collection air channel, sets successively along airflow direction in described gas circle collection air channel
It is equipped with the particle filter being connected respectively, getter device and gas sensor array with analysis controlling unit, getter device is used
In being drawn in gas circle collection air channel extraneous gas from gas collecting hole, and the gas being sucked is through particle filter
Device carries out separating, and the gas after separation is transported to gas sensor array and carries out Concentration Testing, by gas by described particle filter
Detection data is sent and is analyzed to analysis controlling unit by body sensor array, and the gas after Concentration Testing is arranged through air outlet
Go out.
Further, when analysis controlling unit analyzes certain gas concentration and exceeds normal range, in order to determine
It is which kind of food spoilage causes, described food freshness detection means also includes at least one and is used for detecting corruption
The imaging detection device of food variety, described imaging detection device is connected with analysis controlling unit.
Preferably, described imaging detection device is Terahertz beam splitter, and it can launch electromagnetic wave to food in refrigerator
Carry out inner molecular structure scanning, be imaged using THz imaging technology, and send the measurements to analysis and Control list
Unit.
Further, for convenience when determining final spoiled food, alarm can be carried out in time, described food
Product freshness detection means also includes the alarm device being connected with analysis controlling unit, to point out personnel to take measures in time,
Wherein, alarm device can be audible alarm can also be photoelectric alarm.
Preferably, described getter device can be realized using circulating fan.
Based on a kind of above-mentioned food freshness detection means, invention also provides a kind of new using above-mentioned food
The refrigerator of fresh degree detection device, including cold room, is provided with food freshness detection means in described cold room casing,
Described food freshness detection means includes the gas circle collection air channel that encapsulant surrounds, described gas circle collection
Gas collecting hole and air outlet are had on air channel, is disposed with respectively along airflow direction in described gas circle collection air channel
Particle filter, getter device and the gas sensor array being connected with analysis controlling unit, getter device is used for cold preservation
Gas in chamber body is drawn in gas circle collection air channel from gas collecting hole, and the gas being sucked is filtered through particle
Ripple device carries out separating, and the gas after separation is transported to gas sensor array and carries out Concentration Testing by described particle filter, by
Detection data is sent and is analyzed to analysis controlling unit by gas sensor array, and the gas after Concentration Testing is through air outlet
Discharge.
If described food freshness detection means also includes the alarm device being connected with analysis controlling unit, described
Alarm device is preferably provided in refrigerator control panel, and wherein, alarm device can be audible alarm can also be photoelectric alarm.
By arranging alarm device, during the convenient final spoiled food when determination, alarm can be carried out in time.
Compared with prior art, advantages of the present invention and good effect are：The food freshness detection means of the present invention
It is analyzed using the gas that food is distributed, quickly judges whether there is rotten food, result is accurately it is adaptable to all foods
The freshness detection of product, and further image checking can be passed through, quickly determine rotten food variety, making to user
With bringing great convenience, device take up room little, can very easily be arranged on storage food device in.
After the detailed description of embodiment of the present invention is read in conjunction with the accompanying, the other features and advantages of the invention will become more
Plus it is clear.
Brief description
Fig. 1 is a kind of example structure schematic diagram of food freshness detection means proposed by the invention；
Fig. 2 is the lateral plan of food freshness detection means in Fig. 1；
Fig. 3 is circuit part control principle block diagram in Fig. 1；
Fig. 4 is a kind of example structure schematic diagram of refrigerator proposed by the invention.
Specific embodiment
For there is presently no a kind of problem of food freshness detection means, namely current device can only be according to factory
The shelf-life durations that family demarcates are reminded, and many times do not meet with actual food product freshness, cause information errors, the present invention
Provide a kind of food freshness detection means, be analyzed using the gas that food is distributed, whether quickly judge
There is rotten food, and further image checking can be passed through, quickly determine rotten food variety, bring to the use of user
Greatly convenient, device take up room little, can very easily be arranged on storage food device in.
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described in more detail.
Embodiment one, referring to shown in Fig. 1, Fig. 2, Fig. 3, the food freshness detection means of the present embodiment, including gas
Circle collection air channel 1, described gas collecting air channel 1 is surrounded by encapsulant, and described gas circle collection air channel has gas
Collection hole 2 and air outlet 3, in gas collecting air channel 1 along airflow direction be disposed with particle filter 4, getter device 6 with
And gas sensor array 5, and particle filter 4, getter device 6 and gas sensor array 5 respectively with analysis and Control list
Unit connects, and getter device 6 accepts the control of analysis controlling unit, for extraneous gas is drawn into gas from gas collecting hole 2
In circle collection air channel 1, particle filter 4 accepts the control of analysis controlling unit, and the gas being sucked is through particle filter 4
Carry out separating according to particle size, gas sensor array 5 equally accepts the control of analysis controlling unit, complete the gas after separating
Body is transported to gas sensor array 5 by particle filter 4, carries out Concentration Testing, and is sent detection data to analysis by it
Control unit is analyzed, and the gas after Concentration Testing eventually passes through air outlet and discharges.Gas sensor array 5 is to be passed by one group
Sensor forms, and is respectively used to the concentration of the harmful gass that detection spoiled food distributes, the ethylene sensing of such as detection ethylene concentration
Device, for detecting the hydrogen sulfide sensor of sulfureted hydrogen gas concentration, for detecting ammoniacal sensor of ammonia density etc..Analysis and Control list
The data that unit sends to gas sensor 5 is analyzed, and judges whether certain gas concentration exceeds normal range.Wherein, described
Getter device 6 can be realized using circulating fan, but be not limited to circulating fan.
When analysis controlling unit analyzes certain gas concentration and exceeds normal range, it is which kind of food in order to determine
Putrid and deteriorated cause, described food freshness detection means also includes at least one for detecting spoiled food species
Imaging detection device 7, described imaging detection device 7 is connected with analysis controlling unit.Namely：When analysis controlling unit analyzes certain
When planting gas concentration beyond normal range, triggering is started imaging detection device 7 and works, imaging detection device 7 is to neighbouring food
Carry out inner molecular structure scanning, and send the measurements to analysis controlling unit, by analysis controlling unit and data base
The normal data setting compares, final determination spoiled food species.Described imaging detection device 7 can be using too
Hertz beam splitter is realized, and it can be launched electromagnetic wave and carry out inner molecular structure scanning to food in refrigerator, is become using Terahertz
As technology is imaged, and send the measurements to analysis controlling unit.The operating frequency of whole detection means can basis
User's actual need is configured and adjusts, and for ensureing practical effect, typically can be set as 12 hours automatic detections one
Secondary it is also possible to according to the actual requirements this function be carried out with the setting of random opening and closing, simple to operation, user holds very much
Easily grasp.
For convenience when determining final spoiled food, alarm can be carried out in time, described food freshness
Detection means also includes the alarm device being connected with analysis controlling unit（In figure does not show）, arranged with pointing out personnel to take in time
Apply, wherein, alarm device can be audible alarm, such as pass through to install buzzer realization or photoelectric alarm, such as logical
Cross mounted LED lamp to realize.
This device carries out component analyses using the gas that spoiled food is sent, and result is accurately it is adaptable to all food
Freshness detects, such as fruit, meat, eggs, greengrocery etc. are simple and practical.
Embodiment two, based on a kind of above-mentioned food freshness detection means, invention also provides a kind of adopt
The refrigerator of above-mentioned food freshness detection means, shown in Figure 4, including cold room 8, arrange in described cold room casing
There is food freshness detection means 9, this food freshness detection means 9 is specifically referred to shown in Fig. 1, Fig. 2, Fig. 3, institute
The food freshness detection means stated includes gas circle collection air channel 1, and gas collecting air channel 1 is enclosed by encapsulant
Become, described gas circle collection air channel 1 has gas collecting hole 2 and air outlet 3, in gas collecting air channel 1, is provided with grain
Subfilter 4, gas sensor array 5 and getter device 6, getter device 6 is used for the gas in cold room casing from gas
Body collection hole 2 is drawn in gas circle collection air channel 1, and the gas being sucked is big according to particle through particle filter 4
Little carry out separate, complete separate after gas gas sensor array 5 is transported to by particle filter 4, carry out Concentration Testing, gas
Body sensor array 5 is connected with analysis controlling unit, is sent detection data by it and is analyzed to analysis controlling unit, concentration
Gas after detection is discharged through air outlet.Wherein, gas sensor array 5 is made up of one group of sensor, is respectively used to examine
Survey the concentration of the harmful gass that spoiled food distributes, such as detect the ethylene sensor of ethylene concentration, be used for detecting stink damp
The hydrogen sulfide sensor of bulk concentration, for detecting ammoniacal sensor of ammonia density etc..The food freshness detection dress of the present embodiment
Put and also include analysis controlling unit, described gas sensor array 5 is connected with analysis controlling unit, and harmful by detect
The concentration data of gas sends to analysis controlling unit, is analyzed judging whether certain gas concentration exceeds normal model by it
Enclose.Wherein, described getter device 6 can be realized using circulating fan.
When analysis controlling unit analyzes certain gas concentration and exceeds normal range, it is which kind of food in order to determine
Putrid and deteriorated cause, described food freshness detection means also includes at least one for detecting spoiled food species
Imaging detection device, described imaging detection device is connected with analysis controlling unit.Namely：When analysis controlling unit analyzes certain
When gas concentration exceeds normal range, triggering is started imaging detection device work, imaging detection device is carried out to neighbouring food
Inner molecular structure scans, and sends the measurements to analysis controlling unit, by analysis controlling unit and setting in data base
Normal data compare, final determine spoiled food species.Described imaging detection device can adopt Terahertz
Beam splitter is realized, and it can be launched electromagnetic wave and carry out inner molecular structure scanning to food in refrigerator, using terahertz imaging skill
Art is imaged, and sends the measurements to analysis controlling unit.Generally, put if the cold room of refrigerator includes dried layer
Frame 10, have also includes fruit and vegetable box, is difficult to Multi Slice Mode due to if a Terahertz beam splitter, it is therefore preferable that gas
Whole cold room is run through in circle collection air channel, and all arranges a Terahertz beam splitter at corresponding each layer of position, so
Check frequency can be prevented effectively from, more comprehensively, thoroughly.
If described food freshness detection means also includes the alarm device being connected with analysis controlling unit, for ice
Case product attractive in appearance, described alarm device is preferably provided in refrigerator control panel, and wherein, alarm device can be sound report
Police can also be photoelectric alarm.Using THz imaging technology, spoiled food is imaged due to being previously noted, preferably will
Imaging shows in control panel simultaneously, and user can be helped quickly to position the type of spoiled food.Reported to the police by setting
Device, conveniently when final determination spoiled food, can carry out alarm in time, be effectively prevented other food of pollution.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, and this technology is led
Change, remodeling, interpolation or replacement that the those of ordinary skill in domain is made in the essential scope of the present invention, also should belong to this
Bright protection domain.
Claims (8)
1. a kind of food freshness detection means it is characterised in that：The gas circle collection air channel surrounding including encapsulant,
Gas collecting hole and air outlet is had, along air-flow side in described gas circle collection air channel on described gas circle collection air channel
To being disposed with the particle filter being connected respectively, getter device and gas sensor array with analysis controlling unit, inhale
Device of air accepts the control of analysis controlling unit, for extraneous gas is drawn into gas circle collection air channel from gas collecting hole
Interior, particle filter accepts the control of analysis controlling unit, and the gas being sucked enters according to particle size through particle filter
Row separates, and gas sensor array equally accepts the control of analysis controlling unit, and the gas after completing to separate is by particle filter
It is transported to gas sensor array, carries out Concentration Testing, and by it, detection data is sent and be analyzed to analysis controlling unit,
Gas after Concentration Testing eventually passes through air outlet and discharges；
Described food freshness detection means also includes at least one and fills for the image checking detecting spoiled food species
Put, described imaging detection device is connected with analysis controlling unit, just exceed when analysis controlling unit analyzes certain gas concentration
Often during scope, triggering is started imaging detection device work, imaging detection device carries out inner molecular structure to neighbouring food and sweeps
Retouch, and send the measurements to analysis controlling unit, carried out by the normal data of analysis controlling unit and setting in data base
Compare analysis, determine spoiled food species.
2. food freshness detection means according to claim 1 it is characterised in that：Described imaging detection device is
Terahertz beam splitter.
3. food freshness detection means according to claim 1 it is characterised in that：Described food freshness inspection
Survey the alarm device that device also includes being connected with analysis controlling unit.
4. the food freshness detection means according to claim 1-3 any one claim it is characterised in that：Described
Getter device be circulating fan.
5. a kind of refrigerator, including cold room it is characterised in that：It is provided with the detection of food freshness in described cold room casing
Device, described food freshness detection means includes the gas circle collection air channel that encapsulant surrounds, and described gas follows
Ring collection has gas collecting hole and air outlet on air channel, sets gradually along airflow direction in described gas circle collection air channel
There are the particle filter being connected respectively, getter device and gas sensor array with analysis controlling unit, getter device accepts
The control of analysis controlling unit, for being drawn in gas circle collection air channel extraneous gas from gas collecting hole, particle is filtered
Ripple device accepts the control of analysis controlling unit, and the gas being sucked carries out separating according to particle size through particle filter, gas
Body sensor array equally accepts the control of analysis controlling unit, and the gas after completing to separate is transported to gas by particle filter
Sensor array, carries out Concentration Testing, and is sent detection data by it and be analyzed to analysis controlling unit, after Concentration Testing
Gas eventually pass through air outlet discharge；
Described food freshness detection means also includes at least one and fills for the image checking detecting spoiled food species
Put, described imaging detection device is connected with analysis controlling unit, just exceed when analysis controlling unit analyzes certain gas concentration
Often during scope, triggering is started imaging detection device work, imaging detection device carries out inner molecular structure to neighbouring food and sweeps
Retouch, and send the measurements to analysis controlling unit, carried out by the normal data of analysis controlling unit and setting in data base
Compare analysis, determine spoiled food species.
6. refrigerator according to claim 5 it is characterised in that：Described imaging detection device is Terahertz beam splitter.
7. refrigerator according to claim 5 it is characterised in that：Described food freshness detection means also includes and divides
The alarm device that analysis control unit connects, described alarm device is arranged in refrigerator control panel.
8. the refrigerator according to claim 5-7 any one claim it is characterised in that：Described getter device is circulation
Blower fan.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210036422.5A CN102636433B (en) | 2012-02-17 | 2012-02-17 | A kind of food freshness detection means and the refrigerator using this device |
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| CN201210036422.5A CN102636433B (en) | 2012-02-17 | 2012-02-17 | A kind of food freshness detection means and the refrigerator using this device |
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| CN102636433A CN102636433A (en) | 2012-08-15 |
| CN102636433B true CN102636433B (en) | 2017-03-01 |
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| US10119753B2 (en) | 2013-08-01 | 2018-11-06 | Samsung Electronics Co., Ltd. | Gas sensor module, refrigerator having the same and control method for the refrigerator |
| CN110658313A (en) * | 2018-09-25 | 2020-01-07 | 北京锐康远中科技有限公司 | Device and method for detecting freshness of pork |
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| CN103940970A (en) * | 2013-01-23 | 2014-07-23 | 海尔集团公司 | Refrigeration equipment smell detection method, detection device and refrigeration equipment |
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| CN105222506B (en) * | 2015-08-21 | 2018-01-16 | 合肥华凌股份有限公司 | Gas concentration method for early warning, gas concentration prior-warning device and refrigerator |
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| CN113494792B (en) * | 2020-03-20 | 2022-08-16 | 海信集团有限公司 | Refrigerator with a door |
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| CN1238679C (en) * | 2003-04-09 | 2006-01-25 | Tcl家用电器（惠州）有限公司 | Refrigerator fruit-vegetable freshness prompter and method for analysing and processing sighals thereof |
| CN1245630C (en) * | 2004-01-08 | 2006-03-15 | 江苏大学 | Agricultural and animal product nondestrctive detection method based on electronic visual sense and smell sense fusion technology and its device |
| CN101000191A (en) * | 2006-01-11 | 2007-07-18 | 王冬雷 | Refrigerator, freezer with nitrogen generating freshness retaining function |
| DE102009045724B3 (en) * | 2009-10-15 | 2011-01-27 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Photoacoustic gas sensor and method for its production and use |
| CN201819507U (en) * | 2010-09-28 | 2011-05-04 | 天津三星光电子有限公司 | Refrigerator capable of prompting food freshness |
| CN102297930A (en) * | 2011-07-20 | 2011-12-28 | 浙江大学 | Method for identifying and predicting freshness of meat |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US10119753B2 (en) | 2013-08-01 | 2018-11-06 | Samsung Electronics Co., Ltd. | Gas sensor module, refrigerator having the same and control method for the refrigerator |
| CN110658313A (en) * | 2018-09-25 | 2020-01-07 | 北京锐康远中科技有限公司 | Device and method for detecting freshness of pork |
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| CN102636433A (en) | 2012-08-15 |
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