CN114486758A - Residual food storage container with safety detection function and use method thereof - Google Patents
Residual food storage container with safety detection function and use method thereof Download PDFInfo
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D55/00—Accessories for container closures not otherwise provided for
- B65D55/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
- B65D55/14—Applications of locks, e.g. of permutation or key-controlled locks
- B65D55/145—Applications of locks, e.g. of permutation or key-controlled locks of permutation locks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/02—Food
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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Abstract
The invention discloses a residual food storage container with a safety detection function and a use method thereof. According to the technical scheme, through structural design, the safety of the residual food in the storage container is comprehensively judged from three dimensions of color, strength and nitrite, the safety of the residual food is efficiently and reliably judged, meanwhile, the remote control of opening the storage container is realized by combining a network and a mobile phone APP, the injury to the body of the old parents due to the fact that the old parents insist on eating the deteriorated residual food can be prevented, and the family emotional harmony is improved.
Description
Technical Field
The invention relates to a residual food storage container, in particular to a residual food storage container with a safety detection function and a using method thereof.
Background
The hardship and the thrifty saving are the goodness of Chinese nation, but with the improvement of living standard, the food safety problem gets more and more attention from people. Among them, the problem of whether leftovers and the like can be eaten continuously is attracting attention of people. Especially, some old people still have to discard the leftovers left for long time due to saving, and further cause adverse reaction to the body, and children have to resist the parents to eat the leftovers frequently for the health of the parents, and therefore contradictions are often generated between the old people and the children.
In actual life, people usually judge whether food can be eaten continuously or not by identifying whether the taste of leftovers is obviously changed or not through the length of storage time, and the method is completely based on personal experience and the sensitivity degree of smell, so that the reliability and the difference are uncontrollable, and great potential safety hazards are caused. For some leftovers with changed taste, some old people can discard the outer part of the leftovers and then continue to eat the remaining food after the treatment of heating and the like, which is very likely to cause intestinal discomfort to the body. However, most of the adult children cannot accompany the parents all the day because of work and other reasons, even if the adults and children are provided with the cameras to see, the adults and children are only 'mentally weak', the old parents cannot be prevented from eating leftovers with potential safety hazards, and further, the insides of many adult children and children are extremely anxious. Therefore, how to consider saving and safety for leftover food becomes a technical problem to be solved urgently in daily life, and with the coming of the aging society of China, the problem of eating the leftover food also becomes a social problem affecting the harmonious emotion between young children and old parents.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a residual food storage container with a safety detection function, through structural design, the safety of residual food in the storage container is comprehensively judged from three dimensions of color, strength and nitrite, the safety of the residual food is efficiently and reliably judged, meanwhile, remote control over opening of the storage container is realized by combining a network and a mobile phone APP, and the phenomenon that old parents can hurt bodies due to the fact that the old parents insist on eating the deteriorated residual food is avoided.
The invention provides a residual food storage container with a safety detection function, which adopts the main technical scheme that: including shell and upper cover, shell outside surface is equipped with display panel, the inside inner bag that is equipped with of shell, the inner bag side with be equipped with colour detecting element and dynamics detecting element between the shell inner wall, the inner bag bottom surface with be equipped with nitrite detecting element between the shell bottom surface.
The color detection unit is adjacent to the inner container, and the force detection unit is adjacent to the inner wall of the shell.
The upper cover is internally provided with a controller and a network communication unit, and the controller is electrically connected with the color detection unit, the strength detection unit and the nitrite detection unit respectively.
The nitrite detection unit comprises a test paper chamber positioned in the middle and a test chamber positioned on the periphery of the test paper chamber, wherein the test paper chamber sequentially comprises a test paper storage room, a test paper transition room and a test paper abandonment room from top to bottom.
The outer side surface of the inner container is provided with openable sampling ports which are arranged at equal intervals along the height direction.
The inner side surface of the color detection unit is provided with a through hole corresponding to the inner container sampling port, the color detection unit is provided with a partition plate for dividing different through holes, and the top of the color detection unit is provided with an irradiation light source and a camera.
The inside surface of dynamics detecting element be equipped with the communicating hole in colour detecting element inside, the bottom of dynamics detecting element be equipped with the communicating mesh of test chamber of nitrite detecting element.
The top of the force detection unit is also provided with a force application mechanism, and a motor, an execution element and an end head are arranged in the force application mechanism.
The top of the test chamber is provided with an inlet communicated with the meshes, a filter layer is arranged below the inlet, and a channel identical to the test paper transition chamber is arranged on the inner side of the test chamber.
The invention provides a using method of a residual food storage container with a safety detection function, which comprises the following steps:
s1, opening the network communication unit of the upper cover of the residual food storage container, and connecting the residual food storage container with a mobile phone APP;
s2, opening the lock of the upper cover, putting the residual food into the inner container, closing the upper cover, and setting the lock password by using the mobile phone APP;
s3, remaining food initial state detection and recording:
(1) recording the initial time of storing the residual food by using a timer in a controller of the upper cover;
(2) extracting samples at different positions of the rest food by using sampling tubes through sampling ports at different positions;
(3) firstly, an extracted sample enters a color detection unit for testing, the surface of the sample is photographed under the irradiation of different irradiation light sources, and the photograph is transmitted to a controller of an upper cover;
(4) then, pushing the sample after the color detection unit finishes testing to the bottom of the force detection unit by using a sampling tube, vertically extruding by using an end head of the force detection unit to test the rebound force and the bearing capacity of the sample, horizontally shearing by using the end head to test the friction force of the sample, and transmitting the force test result to a controller of the upper cover;
(5) finally, the end of the force detection unit is used for carrying out the ultimate extrusion of the sample, the obtained food liquid enters the nitrite detection unit below, the nitrite concentration of the food liquid is detected by using the nitrite rapid test paper, and the nitrite content test result is transmitted to the controller of the upper cover;
(6) the controller of the upper cover records the initial time of storing the residual food, records the photos of the residual food, the initial states of the strength test result and the nitrite test result, stores various data according to index parameters, and synchronously uploads the data to the mobile phone APP;
s4, detecting and recording the state of the food before eating and judging whether the food is deteriorated:
(1) starting a controller switch of the upper cover, and waking up or reconnecting the mobile phone APP;
(2) repeating the whole process in the step S3, transmitting the pictures of the residual food at the time point, the strength test result and the nitrite content test result to the controller of the upper cover, and synchronously transmitting the pictures, the strength test result and the nitrite content test result to the mobile phone APP;
(3) the controller or the mobile phone APP compares the pictures of the residual food obtained by testing, the strength testing result and the nitrite testing result based on the food state database and/or the index parameters set by the controller or the mobile phone APP, judges whether the results exceed the standard or not, and displays the final results on the display panel of the shell in real time;
(4) if the judgment result is that the password does not exceed the standard, the lock catch between the upper cover and the shell can be freely opened without a password instruction of the mobile phone APP; and if the judgment result is that the lock catch exceeds the standard, the unlocking control of the lock catch is carried out by inputting a password instruction through the mobile phone APP.
Compared with the prior art, the technical scheme of the invention has the following advantages:
firstly, the technical scheme of the invention is more reliable and convenient for judging the safety of the residual food. The safety of the food left in the storage container is comprehensively judged from three dimensions of color, strength and nitrite, particularly, the change of the color, strength and nitrite of the food is directly strongly associated with the safety of the food, the safety state of the food can be intuitively and effectively reflected, and the deterioration judgment of the food is more reliable; particularly, based on the food state database and/or the index parameters set by the user, scientific and personalized requirements are considered, the change degrees of all the index parameters or states of the rest food are compared, and compared with the existing method of distinguishing by the single smell of different individuals in life, the reliability is obviously improved.
Secondly, in the technical scheme of the invention, the structural design of the detection unit is more targeted and intuitive. In the color detection unit, samples are extracted at different heights, the food samples are irradiated by the irradiation light source under set conditions, surface appearance pictures are shot, and then the deterioration condition is judged visually by using the change of the color of the food based on the comparison between the appearance pictures in the initial storage state and the appearance pictures in different storage time of the residual food, and the deterioration condition of the residual food at different positions can be reflected; in the force detection unit, the sample is subjected to rebound force and bearing force tests through vertical extrusion of the end head so as to visually reflect the deterioration degree of food, the end head is used for horizontal shearing so as to test the friction force of the sample, and the deterioration degree of the deteriorated food is visually judged by using the influence of the viscosity and plasticity change of the deteriorated food on the friction force; utilize reagent can carry out the short-term test of nitrite content among the nitrite detecting element, compare the result of discolouing of test paper through the controller, carry out the judgement of metamorphism degree fast. In addition, on the arrangement structure of the detection units, the damage degree of the samples in each detection process is fully considered, and the samples sequentially pass through the color detection unit, the strength detection unit and the nitrite detection unit, so that the maximum utilization of the same food sample is realized, the detection efficiency is improved, and the food consumption is reduced.
Finally, the technical scheme of the invention adopts the mobile phone APP to realize the remote control of the storage container, and the controller of the upper cover is used for controlling the opening of the lock catch, so that the old parents can refuse to eat deteriorated food, and the old parents can refuse the deteriorated food. According to the technical scheme, the controller of the upper cover and the mobile phone APP are synchronously set and can be controlled by the mobile phone APP, on one hand, adult children can know the safety state of the residual food in the storage container at any time, on the other hand, after the food deterioration degree is found to exceed the safety or self-set standard, the mobile phone APP is used for remotely controlling the lock catch to be in the closed state, so that old parents are prevented from eating deteriorated food, and anxiety and worry of the young children to the old parents about eating the deteriorated food are effectively solved.
Drawings
Fig. 1 is a schematic view showing the overall construction of the residual food storage container of the present invention.
Fig. 2 is a schematic view of the internal structure of the housing of the present invention.
Fig. 3 is a schematic view of the internal structure of the upper cover of the present invention.
FIG. 4 is a schematic diagram of the structure of the nitrite detection unit of the present invention.
Fig. 5 is a schematic cross-sectional view of the internal structure of the housing of the present invention.
Fig. 6 is a schematic structural view of the liner of the present invention.
FIG. 7 is a schematic diagram of the structure of the testing chamber of the nitrite detection unit of the present invention.
Fig. 8 is a schematic structural diagram of the color detection unit and the force detection unit of the present invention.
Detailed Description
Referring to fig. 1 and 2, a container for storing residual food with a safety detection function includes a housing 1 and an upper cover 2, a latch (not shown) is disposed between the housing 1 and the upper cover 2, a display panel 11 is disposed on an outer side surface of the housing 1, an inner container 12 is disposed inside the housing 1, a cross section of the inner container 12 is circular or rectangular, the inner container 12 is detachable from the housing 1 for easy cleaning, a color detection unit 13 and a force detection unit 14 are disposed between a side surface of the inner container 12 and an inner wall of the housing 1, a sampling tube (not shown) is disposed in the color detection unit 13 and the force detection unit 14 separately or together, the sampling tube is a hollow tube body with a sharp end and a rectangular cross section, a push plate is disposed in the tube body to move a position of a food sample, and at least one side surface of the sampling tube is openable, the nitrite detection device is used for observing and photographing surface appearance, and a nitrite detection unit 15 is arranged between the bottom surface of the inner container 12 and the bottom surface of the shell 1. The controller, the color detection unit, the strength detection unit and the nitrite detection unit are respectively provided with independent power supplies to provide power for respective operation.
Referring to fig. 2 and 5, the color detection unit 13 is adjacent to the inner container 12, the strength detection unit 14 is adjacent to the inner wall of the housing 1, the sampling tube extracts a food sample and then enters the color detection unit 13, the color detection process is nondestructive detection, and after the detection is finished, the sample is pushed by the sampling tube and enters the strength detection unit 14. Further, the color detection unit 13 includes at least two equal space sub-units, and the sub-spaces of the color detection unit 13 and the sub-spaces of the strength detection unit 14 correspond to each other one by one, so that color detection and strength detection can be performed in each sub-space at the same time, and the detection efficiency and reliability are improved.
In many foods, after deterioration of the food due to oxidation or the like after long-term storage or decomposition of protein in the food by microorganisms, the direct change is that the gloss of the food becomes dull, the freshness of the food itself is reduced, the elasticity is deteriorated, and the viscosity of some foods is increased. Therefore, the deterioration degree of the food can be effectively judged by analyzing index parameters such as color saturation, light reflection and the like in the surface appearance picture of the food; the change of the rebound force, the bearing capacity and the friction force of the force test is also an effective index for reflecting the deterioration degree of the force test, thereby providing a reference for safe eating of food.
Referring to fig. 3, a controller 21 and a network communication unit 22 are arranged inside the upper cover 2, the network communication unit 22 can automatically connect to a wireless network in an environment with the wireless network, and further remotely connect to the mobile phone APP, the controller 21 is electrically connected to the color detection unit 13, the strength detection unit 14 and the nitrite detection unit 15 by wires, the wires are connected to the upper cover 2 by plugging, and the wires are adjustable in length, so that the upper cover can be opened and moved in a wire connection state.
Referring to fig. 4, the nitrite detection unit 15 includes a test paper chamber 151 located in the middle and a test chamber 152 located at the periphery of the test paper chamber 151, wherein test paper for rapidly detecting nitrite content is stored in the test paper chamber 151, a test paper discoloration observation camera (not shown) is disposed on a side wall in the test chamber 152, and is used for taking a photograph of the test paper with nitrite detection function after discoloring when contacting with a food liquid, transmitting the taken photograph to a controller 21 in real time, performing automatic comparison by using a standard test paper discoloration card to determine the content and degeneration of nitrite in food, the test paper chamber 151 sequentially includes a test paper storage chamber 1511, a test paper transition chamber 1512 and a waste test paper chamber 1513 from top to bottom, unused test paper with nitrite detection function is pre-stored in the test paper storage chamber 1511, during detection, a single test paper is pushed into the test paper transition chamber 1512, and extended into the testing chamber 152 to contact the food liquid, and after the test is completed, the test strip is retracted into the test strip discarding chamber 1513.
The limit value of the nitrite is 3-5 mg/kg for the unintentionally added naturally generated nitrite and the limit value of the pickle is only 20 mg/kg, so that the nitrite is necessary to be used as one of detection indexes.
Referring to fig. 6, the outer side surface of the liner 12 is provided with an openable sampling port 121, the opening of the sampling port can be controlled by a mechanical method, and the sampling ports 121 are arranged at equal intervals along the height direction to extract food samples at different height positions. Furthermore, the sampling ports 121 can be arranged in multiple rows on the outer surface of the inner container as required, so that the samples can be extracted at circumferentially different positions on the same height level.
Referring to fig. 8, the inner side surface of the color detection unit 13 is provided with a through hole 131 corresponding to the sampling port 121 of the inner container 12, the color detection unit 13 is provided with a partition plate 132 for dividing different through holes 131, the top of the color detection unit 13 is provided with an irradiation light source 134 and a camera 133, the irradiation light source 134 can change the color or intensity of the light source according to the components and the shape of the food sample, and then the clear surface morphology of the sample is obtained by photographing, so that the index parameters such as the saturation and the reflection of the color can be extracted at the later stage, and the deterioration degree of the food can be further determined.
The inner side surface of the force detection unit 14 is provided with an inner hole 141 communicated with the interior of the color detection unit 14, so that a food sample can be fed by a sampling tube, and the bottom of the force detection unit 14 is provided with a mesh 142 communicated with a test chamber 152 of the nitrite detection unit 15, so that liquid generated by the food sample under the extrusion action can enter the test chamber.
The top of the force detection unit 14 is further provided with a force application mechanism, the force application mechanism is internally provided with a motor 144, an actuator 143 and a tip 145, and the tip can realize controllable movement in the vertical direction and controllable movement in the horizontal direction under the action of the motor and the actuator.
Referring to fig. 7, an inlet 1521 communicated with the mesh 142 is arranged at the top of the testing chamber 152, a filter layer 1522 is arranged below the inlet 1521, the filter layer is designed to shield particles in the food liquid, filter pigments in the food liquid and prevent the food from interfering with the color change of the test paper due to the food color, and a channel 1523 communicated with the test paper transition 1512 is arranged on the inner side of the testing chamber 152 so that the test paper can pass between the testing chamber 152 and the test paper transition 1512. In the actual test process, corresponding adjustment can be performed according to the water content in the food, for example, a liquid sample is obtained by adopting a quantitative water adding method for drier food, and the influence of the added water is considered when the nitrite content is obtained, so that the real nitrite content is obtained.
The invention provides a using method of a residual food storage container with a safety detection function, which comprises the following steps:
s1, opening the network communication unit 22 of the upper cover 2 of the residual food storage container, and connecting the residual food storage container with a mobile phone APP, wherein remote connection with the mobile phone APP can be realized only by accessing the network communication unit 22 into the network in the process, and the mobile phone APP is installed on the mobile phone in advance and is matched with the network communication unit 22 of the upper cover 2 of the storage container;
s2, opening the lock of the upper cover 2, putting the residual food into the inner container 12, closing the upper cover 2, and setting the lock password by using the mobile phone APP;
s3, remaining food initial state detection and recording:
(1) recording the initial time of the remaining food by using a timer in the controller 21 of the upper cover 2;
(2) using a sampling tube to extract samples at different positions of the residual food through sampling ports 121 at different positions;
(3) firstly, the extracted sample enters the color detection unit 13 for testing, a corresponding irradiation light source is selected in advance according to the material of the food sample, the surface of the sample is photographed under the irradiation of the irradiation light source 134 under the corresponding condition, and the photograph is transmitted to the controller 21 of the upper cover 2; the irradiation light source is a monochromatic LED light source or white light;
(4) then, the sample after the color detection unit 13 is tested is pushed to the bottom of the force detection unit 14 by using the sampling tube, the end 145 of the force detection unit 14 is used for vertical extrusion, the extrusion force is pre-selected according to the material of the food sample, the sample is subjected to rebound force and bearing force tests, the end 145 is used for horizontal shearing to perform friction force tests on the sample, and the force test result is transmitted to the controller 21 of the upper cover 2;
(5) finally, the end 145 of the force detection unit 14 is used for carrying out the ultimate extrusion of the sample, the obtained food liquid enters the nitrite detection unit 15 below through the mesh 142, the nitrite concentration of the food liquid is detected by using the nitrite rapid test paper, and the nitrite content test result is transmitted to the controller 21 of the upper cover 2;
(6) the controller 21 of the upper cover 2 records the initial time of storing the residual food, records the initial states of the photo, the strength test result and the nitrite test result of the residual food, stores various data according to index parameters and synchronously uploads the data to the mobile phone APP;
s4, detecting and recording the state of the food before eating and judging whether the food is deteriorated:
(1) starting a controller 21 switch of the upper cover 2 to wake up or reconnect the mobile phone APP;
(2) repeating the whole process in the step S3, transmitting the photo, the strength test result and the nitrite content test result of the residual food at the time point to the controller 21 of the upper cover 2, and synchronously transmitting the photo, the strength test result and the nitrite content test result to the mobile phone APP;
(3) the controller 21 or the mobile phone APP compares the photo, strength test result and nitrite test result of the remaining food obtained by the test based on the food state database and/or the index parameters set by itself, judges whether the food exceeds the standard or not by using the change of the food color, the change of the rebound force and the bearing capacity of different positions of the food and the change of the friction force, and the nitrite test result, and displays the final result on the display panel 11 of the housing in real time;
(4) if the judgment result is that the lock catch does not exceed the standard, the lock catch between the upper cover 2 and the shell 1 can be freely opened without a password instruction of the mobile phone APP; if the judgment result is that the food is overproof, password instruction input is required to be carried out through the mobile phone APP to carry out unlocking control on the lock catch, and even if old parents think that the deterioration condition of the residual food is slight, the old parents are effectively prevented from eating the deteriorated food due to the fact that the young children remotely control the lock catch to be in a closed state, and the old parents are helped to eat the residual food healthily on the basis of safety.
It should be noted that the method for connecting the storage container and the mobile phone APP through the network and remotely controlling in the application of the present invention belongs to the field of communications, and is already applied to many devices such as household appliances, and the like, and is not specifically described herein.
According to the technical scheme, the color detection unit, the strength detection unit and the nitrite detection unit are introduced, through structural design, safety of the residual food in the storage container is comprehensively judged from three dimensions of color, strength and nitrite, the contingency of single dimension judgment is avoided, the safety of the residual food is judged efficiently and reliably, particularly, the detection result is visually displayed to the old parents while the data of the food safety state is conveniently known through real-time display of the control panel result, and the old parents are persuaded to refuse the deteriorated food by using the data. In the aspect of a comparative benchmark, general scientific indexes of food safety are considered, personalized requirements are also considered, data can be updated conveniently through the mobile phone APP, and the effect is more convenient and safer. On the other hand, the remote control on the opening of the storage container is realized by combining a network and a mobile phone APP, the technical scheme of the invention can prevent old parents from hurting the bodies of the old parents due to the fact that the old parents insist on eating deteriorated residual food, greatly solves the anxiety problem that the young children and the old parents possibly have hidden dangers when using the residual food, and is also beneficial to enhancing the harmony relationship between the young children and the old parents.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (10)
1. The residual food storage container with the safety detection function is characterized by comprising a shell and an upper cover, wherein a display panel is arranged on the outer side surface of the shell, an inner container is arranged in the shell, a color detection unit and a force detection unit are arranged between the side surface of the inner container and the inner wall of the shell, and a nitrite detection unit is arranged between the bottom surface of the inner container and the bottom surface of the shell; the color detection unit is adjacent to the inner container, and the force detection unit is adjacent to the inner wall of the shell; the upper cover is internally provided with a controller and a network communication unit, and the controller is respectively electrically connected with the color detection unit, the strength detection unit and the nitrite detection unit.
2. The leftover food storage container of claim 1, wherein the nitrite detection unit comprises a test strip chamber located at a middle portion and a test chamber located at a periphery of the test strip chamber, the test strip chamber comprising a test strip storage compartment, a test strip transition compartment and a test strip discard compartment in sequence from top to bottom.
3. The leftover food storage container of claim 1, wherein the inner container is provided with openable sampling ports on an outer surface thereof, and the sampling ports are arranged at equal intervals in a height direction.
4. The container for storing the leftover food as in claim 1, wherein the inner surface of the color detection unit is provided with a through hole corresponding to the sampling port of the liner, the color detection unit is provided with a partition plate for dividing different through holes, and the top of the color detection unit is provided with an irradiation light source and a camera.
5. The container as claimed in claim 1, wherein the force sensing unit has an inner hole formed on an inner surface thereof to communicate with the interior of the color sensing unit, and a mesh hole formed on a bottom thereof to communicate with the test chamber of the nitrite sensing unit.
6. The food waste storage container of claim 5 wherein the force detection unit further comprises a force mechanism at the top thereof, the force mechanism comprising a motor, an actuator and a tip.
7. A food waste storage container as claimed in claim 5 wherein the top of said testing chamber is provided with an inlet in communication with the mesh.
8. The method for using the leftover food storage container with security check function of any one of claims 1 to 7, comprising the steps of:
s1, opening the network communication unit of the upper cover of the residual food storage container, and connecting the residual food storage container with a mobile phone APP;
s2, opening the lock catch of the upper cover, and putting the residual food into the inner container;
s3, detecting and recording the initial state of the remaining food;
and S4, detecting and recording the state of the food before eating and judging whether the food is deteriorated.
9. The method for using a leftover food storage container with a safety check function as claimed in claim 8, wherein the step S3 comprises the following steps:
(1) recording the initial time of storing the residual food by using a timer in a controller of the upper cover;
(2) extracting samples at different positions of the rest food by using sampling tubes through sampling ports at different positions;
(3) firstly, an extracted sample enters a color detection unit for testing, the surface of the sample is photographed under the irradiation of different irradiation light sources, and the photograph is transmitted to a controller of an upper cover;
(4) then, pushing the sample after the color detection unit finishes testing to the bottom of the force detection unit by using a sampling tube, vertically extruding by using an end head of the force detection unit to test the rebound force and the bearing capacity of the sample, horizontally shearing by using the end head to test the friction force of the sample, and transmitting the force test result to a controller of the upper cover;
(5) finally, the end of the force detection unit is used for carrying out the ultimate extrusion of the sample, the obtained food liquid enters the nitrite detection unit below, the nitrite concentration of the food liquid is detected by using the nitrite rapid test paper, and the nitrite content test result is transmitted to the controller of the upper cover;
(6) the controller of upper cover records the initial time that surplus food was deposited, records the initial condition of the photo of surplus food, dynamics test result and nitrite test result to upload the cell-phone APP in step with data.
10. The method for using a leftover food storage container with a security check function as claimed in claim 9, wherein the step S4 comprises the following steps:
(1) starting a controller switch of the upper cover, and waking up or reconnecting the mobile phone APP;
(2) repeating the whole process of the specific steps in the step S3, transmitting the pictures of the residual food at the time point, the strength test result and the nitrite content test result to the controller of the upper cover, and synchronously transmitting the pictures, the strength test result and the nitrite content test result to the mobile phone APP;
(3) the controller or the mobile phone APP compares the pictures, the strength test results and the nitrite test results of the rest food obtained by the test based on the food state database and/or the index parameters set by the controller or the mobile phone APP, judges whether the pictures, the strength test results and the nitrite test results exceed the standard or not, and displays the final results on the display panel of the shell in real time;
(4) if the judgment result is that the password does not exceed the standard, the lock catch between the upper cover and the shell can be freely opened without a password instruction of the mobile phone APP; and if the judgment result is that the lock catch exceeds the standard, the lock catch needs to be opened by inputting a password instruction through the mobile phone APP.
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