CN109211353B - Detection method and device and household appliance - Google Patents
Detection method and device and household appliance Download PDFInfo
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- CN109211353B CN109211353B CN201710550181.9A CN201710550181A CN109211353B CN 109211353 B CN109211353 B CN 109211353B CN 201710550181 A CN201710550181 A CN 201710550181A CN 109211353 B CN109211353 B CN 109211353B
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- 238000001514 detection method Methods 0.000 title claims abstract description 58
- 238000001125 extrusion Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 26
- 239000012491 analyte Substances 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 claims description 4
- 241000209094 Oryza Species 0.000 description 101
- 235000007164 Oryza sativa Nutrition 0.000 description 101
- 235000009566 rice Nutrition 0.000 description 101
- 230000008569 process Effects 0.000 description 20
- 238000010411 cooking Methods 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
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- 238000010586 diagram Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
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- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
- G01F23/18—Indicating, recording or alarm devices actuated electrically
- G01F23/185—Indicating, recording or alarm devices actuated electrically for discrete levels
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/004—Cooking-vessels with integral electrical heating means
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
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Abstract
The invention discloses a detection device, comprising: a helix, at least one pressure sensor, and a processor; the spiral structure is arranged in a container for containing an object to be detected; the pressure sensors are arranged on the spiral structure and are arranged along a set direction; the processor is connected with the pressure sensor; wherein the spiral structure is used for enabling the pressure sensor to be immersed into the object to be measured; the pressure sensor is used for generating an effective pressure signal according to the extrusion of the object to be detected when the pressure sensor is immersed in the object to be detected; and the processor is used for determining the residual amount of the object to be measured in the container according to the effective pressure signal and the total volume of the container. Meanwhile, the invention also discloses a detection method and household electrical appliance equipment.
Description
Technical Field
The present invention relates to detection technologies, and in particular, to a detection method and apparatus, and a home appliance.
Background
Along with the increasing demand of people on intellectualization, the types and functions of household appliances such as electric cookers are more and more diversified. And the user can timely take corresponding measures to process according to the residual quantity condition of the articles by knowing the residual quantity of the articles in the container in real time. For example, the amount of remaining rice in the rice bin is related to whether the user can continue cooking, and when the amount of remaining rice in the rice bin is small, the user may need to add rice into the rice bin in time to continue cooking. However, in the prior art, for example, the remaining amount of the goods in the container is detected by using expensive devices such as an infrared detector or a camera detector, so that the structure of the detection device is complex and the manufacturing cost is high.
Disclosure of Invention
In view of this, embodiments of the present invention are to provide a detection method, a detection apparatus, and a home appliance, which can quickly detect the remaining amount of an object to be detected in a container by using a detection apparatus with simple structural design and low manufacturing cost.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a detection apparatus, where the detection apparatus includes: a helix, at least one pressure sensor, and a processor; the spiral structure is arranged in a container for containing an object to be detected; the pressure sensors are arranged on the spiral structure and are arranged along a set direction; the processor is connected with the pressure sensor; wherein,
the spiral structure is used for enabling the pressure sensor to be immersed into the object to be measured;
the pressure sensor is used for generating an effective pressure signal according to the extrusion of the object to be detected when the pressure sensor is immersed in the object to be detected;
and the processor is used for determining the residual amount of the object to be measured in the container according to the effective pressure signal and the total volume of the container.
In the foregoing solution, the processor is specifically configured to:
obtaining a ratio between the number of effective pressure signals and the total number of pressure sensors;
and determining the residual amount of the object to be measured in the container according to the ratio and the total volume of the container.
In the foregoing solution, the processor is specifically configured to:
determining a first pressure sensor corresponding to the effective pressure signal with the minimum pressure value in the effective pressure signals;
detecting whether the first pressure sensor has an adjacent second pressure sensor; wherein the second pressure sensor is a pressure sensor which is not immersed in the object to be measured;
and if the first pressure sensor is provided with the adjacent second pressure sensor, determining the residual amount of the object to be measured in the container according to the set position of the first pressure sensor and the corresponding relation between the set position of each pressure sensor and the proportion value of the residual amount of the object to be measured in the container to the total volume.
In the above solution, the detecting device further includes: and the display screen is connected with the processor and used for displaying the residual amount of the object to be measured in the container.
In the above scheme, the display screen is further configured to display a reminding message triggered by the processor when the processor detects that the remaining amount of the object to be tested in the container is smaller than a set threshold.
In the above scheme, the spiral structure is connected with the bottom of the container.
In the above scheme, the connection is detachable connection or fixed connection.
In the above scheme, the pressure sensors are arranged on the spiral structure at equal intervals or at unequal intervals.
In the above scheme, the spiral structure is a spiral rod.
In a second aspect, an embodiment of the present invention provides a detection method, where the detection method is applied to a detection device, where the detection device includes a spiral structure, at least one pressure sensor, and a processor; the spiral structure is arranged in a container for containing an object to be detected; the pressure sensors are arranged on the spiral structure and are arranged along a set direction; the processor is connected with the pressure sensor;
the detection method comprises the following steps:
acquiring an effective pressure signal generated according to the extrusion of the object to be detected when the pressure sensor is immersed in the object to be detected;
and determining the residual amount of the object to be measured in the container according to the effective pressure signal and the total volume of the container.
In the above scheme, the determining the remaining amount of the object to be measured in the container according to the effective pressure signal and the total volume of the container includes:
obtaining a ratio between the number of effective pressure signals and the total number of pressure sensors;
and determining the residual amount of the object to be measured in the container according to the ratio and the total volume of the container.
In the above scheme, the determining the remaining amount of the object to be measured in the container according to the effective pressure signal and the total volume of the container includes:
determining a first pressure sensor corresponding to the effective pressure signal with the minimum pressure value in the effective pressure signals;
detecting whether the first pressure sensor has an adjacent second pressure sensor; wherein the second pressure sensor is a pressure sensor which is not immersed in the object to be measured;
and if the first pressure sensor is provided with the adjacent second pressure sensor, determining the residual amount of the object to be measured in the container according to the set position of the first pressure sensor and the corresponding relation between the set position of each pressure sensor and the proportion value of the residual amount of the object to be measured in the container to the total volume.
In the foregoing solution, after determining the remaining amount of the object to be measured in the container, the method further includes:
and displaying the residual amount of the object to be detected in the container.
In the foregoing solution, after determining the remaining amount of the object to be measured in the container, the method further includes:
and when the residual quantity of the object to be detected in the container is detected to be smaller than a set threshold value, displaying a reminding message.
In a third aspect, an embodiment of the present invention provides a home appliance, where the home appliance may include the detection apparatus according to any one of the first aspect.
The detection method, the detection device and the household appliance provided by the embodiment of the invention have the advantages that the detection device comprises: a helix, at least one pressure sensor, and a processor; the spiral structure is arranged in a container for containing an object to be detected; the pressure sensors are arranged on the spiral structure and are arranged along a set direction; the processor is connected with the pressure sensor; the spiral structure is used for enabling the pressure sensor to be immersed into the object to be measured; the pressure sensor is used for generating an effective pressure signal according to the extrusion of the object to be detected when the pressure sensor is immersed in the object to be detected; the processor is used for determining the residual amount of the object to be measured in the container according to the effective pressure signal and the total volume of the container; therefore, in the embodiment of the invention, the residual quantity of the object to be detected in the container can be quickly detected through the spiral structure and the pressure sensor arranged on the surface of the spiral structure, the structural design is simple, and the manufacturing cost is low.
Drawings
Fig. 1 is a schematic structural diagram of a detection apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the relative positions of the spiral structure and the pressure sensor according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of an implementation of the detection method according to the embodiment of the present invention;
fig. 4 is a schematic structural diagram of an embodiment of a detection apparatus according to an embodiment of the present invention;
fig. 5 is a schematic flowchart of a specific implementation of the detection method according to the embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of a detection apparatus provided in an embodiment of the present invention, where the detection apparatus includes: a helix 1, at least one pressure sensor 2 and a processor 3; the spiral structure 1 is arranged in a container 4 for containing an object to be detected; the pressure sensors 2 are arranged on the spiral structure 1 and are arranged along a set direction; the processor 3 is connected with the pressure sensor 2; wherein,
the spiral structure 1 is used for enabling the pressure sensor 2 to be immersed into the object to be measured; the pressure sensor 2 is used for generating an effective pressure signal according to the extrusion of the object to be detected when the pressure sensor is immersed in the object to be detected; and the processor 3 is used for determining the residual amount of the object to be measured in the container according to the effective pressure signal and the total volume of the container 4.
The pressure sensors 2 illustrated in fig. 1 are not used to indicate that the number of the pressure sensors 2 is one, but are only used to indicate the position relationship of the pressure sensors 2 relative to other devices; in practical applications, the number of the pressure sensors 2 may be one or more.
Here, the spiral structure 1 is adopted, so that the object to be measured does not adhere to the spiral structure 1 above the reference surface in the process of reducing the height of the object to be measured in the container 4, namely, the residual amount of the object to be measured is reduced, and the pressure sensor 2 which is arranged on the spiral structure 1 and above the reference surface does not generate measurement errors due to the adhesion of the object to be measured; the reference surface is a surface formed by the object to be detected in the container 4; for example, assuming a distance a between a point on the spiral structure 1 and the top of the spiral structure 1, when the distance a between the reference surface of the object to be measured in the container 4 and the top of the spiral structure 1 is greater than a, the pressure sensor 2 disposed at the point generates a pressure signal with a pressure value of zero because it is not squeezed by the object to be measured, that is, generates an invalid pressure signal; when the object to be detected is attached to the pressure sensor 2, namely the object to be detected is extruded by the object to be detected, a pressure signal with a pressure value larger than zero is generated, namely an effective pressure signal is generated; when the pressure sensor 2 is not attached with the object to be measured, that is, not extruded by the object to be measured, an invalid pressure signal may not be generated, and at this time, the processor 3 may only acquire the valid pressure signal generated by the pressure sensor 2 attached with the object to be measured; in order to ensure that the object to be measured does not adhere to the spiral structure 1 above the reference surface, the pitch of the spiral structure 1 can be designed to be slightly larger according to actual needs, so that the oblique angle is as large as possible; the spiral structure 1 can be made of plastic, rubber, metal and other materials; in practical applications, the spiral structure 1 may be a spiral rod, a spiral blade, or the like; the spiral structure 1 can be connected with the top of the container 4 and/or connected with the bottom of the container 4, and the connection can be a detachable connection or a fixed connection, so that all or part of the pressure sensor 2 arranged on the spiral structure 1 can be immersed in the object to be measured; in addition, the spiral structure 1 can also be arranged in the container 4 through a support frame, the support frame is respectively connected with the spiral structure 1 and the bottom of the container 4, and the bottom of the support frame can be provided with an opening so that the object to be measured can not be accumulated at the bottom of the support frame; meanwhile, the length of the spiral structure 1 can be smaller than, equal to or larger than the height of the container 4, and can be specifically set according to actual detection requirements; for example, when the minimum value of the remaining amount of the object to be measured in the container 4 is zero and the maximum value is the total capacity of the container 4, if it is required to detect the maximum value of the remaining amount of the object to be measured in the container 4 from the minimum value, the length of the spiral structure 1 may be set to be equal to or greater than the height of the container 4.
Here, the pressure sensors 2 disposed on the spiral structure 1 and arranged in a set direction can be understood as: the pressure sensors 2 are arranged on the spiral structure 1 along a certain fixed direction, such as along the extending direction of the spiral structure 1 or along the horizontal direction; when the spiral structure 1 is provided with a plurality of pressure sensors 2, the distance between two adjacent pressure sensors 2 can be equal or unequal; of course, a plurality of pressure sensors 2 may also be distributed on the outer surface of the spiral structure 1 in an array form; in the actual detection process, due to the influence of the height of the spiral structure 1, the height of the container 4 and the residual amount of the object to be detected in the container 4, the pressure sensors 2 arranged on the spiral structure 1 may be completely or partially immersed in the object to be detected, so that different pressure signals with different pressure values can be generated.
Here, the container 4 has an inner cavity with a certain volume, also called capacity, for containing the object to be measured; the object to be detected can be liquid such as water, oil and the like, and can also be granular objects such as rice, paddy, wheat and the like; the top or the side of the container 4 can be provided with one or more openings for adding the object to be tested into the container 4 at any time; when the top of the container 4 is an open structure, the container 4 may include a cover part for covering the top of the container 4; the container 4 can be in the shape of a cylinder, a cuboid and the like with a wide upper part and a narrow lower part; the bottom of the container 4 can be provided with one or more openings for discharging the object to be tested from the container 4; in order to facilitate the discharge of the object to be measured from the container 4, the bottom of the container 4 can be designed into a funnel shape, and two sides of the bottom of the container 4 can be of an asymmetric structure; the opening formed in the bottom of the container 4 can be connected with a switch for controlling whether the object to be tested is discharged from the container 4.
Here, the communication between the processor 3 and the pressure sensor 2 may rely on a wired connection; each pressure sensor 2 may be connected to a bus, and then connected to the processor 3 after being integrated through the bus, or each pressure sensor 2 may be connected to the processor 3 separately; in practical application, the processor 3 may be a single chip microcomputer capable of executing a processing control function; the performance indexes of the pressure sensor 2 such as size, precision, stress range and the like can be set according to measurement requirements; when an object to be measured is attached to the surface of the pressure sensor 2, because the pressure sensor 2 is extruded by the object to be measured, i.e., under the action of gravity of the object to be measured, a pressure signal with a pressure value different from zero, i.e., an effective pressure signal, is generated to indicate that the object to be measured is attached to the surface of the pressure sensor 2; in addition, the magnitude of the generated pressure signal is influenced by the substance to be measured attached to the surface of the pressure sensor 2; therefore, the remaining amount of the object to be measured in the container 4 can be determined based on information such as whether the pressure sensor 2 generates the pressure signal and/or the magnitude of the pressure signal generated by the pressure sensor 2, the installation mode of the pressure sensor 2, and the like.
The residual amount may be a ratio of the object to be measured to the total volume of the container, a ratio of the current amount of the object to be measured to the initial amount of the object to be measured, or a relative size of the object to be measured with reference object or reference object as a standard; the corresponding relationship between the set position of the pressure sensor 2 and the ratio of the residual amount of the object to be measured in the container 4 to the total volume can be preset and can be adaptively adjusted according to the requirement, for example, a pressure sensor a is arranged at the central point of the spiral structure 1, and the residual amount of the object to be measured corresponding to the pressure sensor a is set to be half of the total volume of the container; because each pressure sensor 2 is located at different positions on the spiral structure 1, and a corresponding relationship exists between different positions on the spiral structure 1 and the total volume of the container 4, that is, different positions correspond to different residual amounts of the object to be measured in the container 4, the relative position of the reference surface of the object to be measured on the spiral structure 1 can be obtained according to whether the pressure sensors 2 generate effective pressure signals and the positions, so as to obtain the residual amount of the object to be measured in the container 4; moreover, when there are a plurality of pressure sensors 2, each pressure sensor 2 may be numbered first, so that the pressure sensors 2 simultaneously send the generated pressure signals and the numbers thereof to the processor 3, that is, the pressure signals sent to the processor 3 by the pressure sensors 2 carry the numbers of the pressure sensors 2; the processor 3 can store each number and the relationship between the pressure sensors 2 corresponding to the number, and can determine which pressure sensor the pressure signal is generated by according to the different numbers carried in each pressure signal, so as to know whether each pressure sensor generates the pressure signal and/or the magnitude of the generated pressure signal; in addition, when the value of the pressure signal generated by the pressure sensor 2 is zero, it indicates that the pressure sensor 2 is not squeezed by the object to be measured, i.e. the object to be measured is not attached to the pressure sensor 2, and the pressure sensor 2 is located above the reference surface of the object to be measured; when the value of the pressure signal generated by the pressure sensor 2 is not zero, it indicates that the pressure sensor 2 is extruded by the object to be measured, that is, the object to be measured is attached to the pressure sensor 2, and the pressure sensor 2 is located below the reference surface of the object to be measured; moreover, when the object to be measured is not attached to the pressure sensor 2, the pressure sensor 2 may not generate a pressure signal, that is, the pressure signal is not sent to the processor 3; therefore, the relative position of the reference surface of the object to be measured can be obtained according to the information such as whether the pressure sensor 2 generates the pressure signal and/or the magnitude of the generated pressure signal and the position of the pressure sensor 2, and the residual amount of the object to be measured in the container 4 can be further obtained.
When the total volume of the container 4 is known and the shape of the container 4 is relatively regular, for example, when the container 4 is in a shape of a cylinder, a rectangular parallelepiped, or the like with central symmetry, so that there is a corresponding relationship between different positions on the spiral structure 1 and a ratio of the remaining amount of the object to be measured in the container 4 to the total volume of the container 4, the processor 3 determines the remaining amount of the object to be measured in the container 4 according to the effective pressure signal and the total volume of the container 4, which may be: obtaining a ratio between the number of said effective pressure signals and the total number of said pressure sensors 2; determining the residual amount of the object to be measured in the container 4 according to the ratio and the total volume of the container 4; for example, if the total volume of the container 4 with central symmetry is 8 liters, the number of the pressure sensors 2 is 8, the pressure sensors 2 are arranged on the spiral structure 1 at equal intervals and are arranged from the top of the spiral structure 1 downwards, and the bottom of the spiral structure 1 is not correspondingly provided with the pressure sensors 2, so as to averagely divide the total volume of the container 4 into 8 parts, and when the number of the effective pressure signals acquired by the processor 3 is 5, the remaining amount of the object to be measured in the container 4 can be determined to be between 5 liters and 6 liters; the processor 3 determines the remaining amount of the object to be measured in the container 4, which may be: the processor 3 counts the ratio of the number of the pressure sensors which are not extruded by the object to be measured to the number of the pressure sensors which are extruded by the object to be measured according to the value of each pressure signal in at least one pressure signal generated by the at least one pressure sensor 2, and then calculates the residual amount of the object to be measured in the container 4 according to the ratio and the total volume of the container; when the value of the pressure signal is zero or less than a certain set value, the pressure sensor corresponding to the pressure signal is considered not to be extruded by the object to be measured, and when the value of the pressure signal is not zero or more than a certain set value, the pressure sensor corresponding to the pressure signal is considered to be extruded by the object to be measured, and the set value can be set according to the actual situation, for example, the set value is set to be 0.2N; when the value of the pressure signal is smaller, that is, smaller than a certain set value, it is described that the pressure sensor corresponding to the pressure signal is subjected to a smaller extrusion force by the object to be measured, that is, the object to be measured attached to the pressure sensor is less, which may be caused by the fact that a reference surface formed by the object to be measured is not a horizontal plane, but a protrusion exists on the reference surface, and the like, so in order to better detect the remaining amount of the object to be measured and improve the detection accuracy, the pressure sensor with the smaller pressure signal value is not considered at certain time; for example, when the object to be measured in the container 4 is rice, the reference surface formed by the rice may be uneven, i.e. there is a protrusion, and when the rice of the protrusion portion is just attached to the pressure sensor, the pressure signal generated by the pressure sensor has a smaller value, however, the height between the object to be measured and the reference surface and the bottom of the container may be smaller than the height between the protrusion portion and the bottom of the container; therefore, it is possible to further use only a pressure signal having a value larger than a certain set value as the effective pressure signal.
Here, when the total volume of the container 4 is known and the shape of the container 4 is more regular or irregular, the processor 3 determines the remaining amount of the object to be measured in the container 4 according to the effective pressure signal and the total volume of the container 4, and may further be: determining a first pressure sensor corresponding to the effective pressure signal with the minimum pressure value in the effective pressure signals; detecting whether the first pressure sensor has an adjacent second pressure sensor; wherein the second pressure sensor is a pressure sensor which is not immersed in the object to be measured; if the first pressure sensor is provided with the adjacent second pressure sensor, determining the residual amount of the object to be measured in the container 4 according to the set position of the first pressure sensor and the corresponding relation between the set position of each pressure sensor 2 and the proportion value of the residual amount of the object to be measured in the container 4 to the total volume; or determining the residual amount of the object to be measured in the container 4 according to the set position of the first pressure sensor, the set position of a second pressure sensor adjacent to the first pressure sensor and the corresponding relation between the set position of each pressure sensor 2 and the proportion value of the residual amount of the object to be measured in the container 4 to the total capacity of the container 4; wherein a second pressure sensor adjacent to the first pressure sensor can be determined according to the position or sequence in which all pressure sensors 2 are arranged on the helix 1; for example, assuming that four pressure sensors a, b, c and d are sequentially arranged on the spiral structure 1 from top to bottom, the pressure sensors c and d have non-zero pressure signals, which are respectively corresponding to 0.5N and 5N, and since the pressure value of the pressure sensor c is smaller than that of the pressure sensor d, the second pressure sensor adjacent to the pressure sensor c is the pressure sensor b; at this time, if the remaining amount of the object to be measured corresponding to the pressure sensor c is X with respect to the total volume of the container and the remaining amount of the object to be measured corresponding to the pressure sensor b is Y with respect to the total volume of the container, the remaining amount of the object to be measured in the current container is greater than X and less than Y with respect to the total volume of the container.
As shown in fig. 2, when the spiral structure 1 is divided into 9 segments according to the height average to form 10 segmented points, each point is provided with a pressure sensor, such as a small circle in fig. 2, and is respectively denoted by letters a, b, c, d, e, f, g, h, i, j; regarding the container 4 and the spiral structure 1 as reference objects, if the residual amount of the object to be measured corresponding to each pressure sensor from a to j is preset to be 100%, 90%, 80%, 70%, 60%, 50%, 40%, 30%, 20% and 10% respectively relative to the total capacity of the container; if the processor 3 detects that the pressure signal values of the pressure sensors a, b, c and d at 100%, 90%, 80% and 70% of the corresponding points are all zero, and detects that the pressure signal values of the pressure sensors e, f, g, h, i and j at 60%, 50%, 40%, 30%, 20% and 10% of the corresponding points are not zero, the residual amount of the object to be measured in the container 4 is between 60% and 70% of the total capacity of the container; in addition, the specific value of the residual amount of the object to be measured in the container 4 can be further calculated according to the pressure signal value of the pressure sensor e at the 60% corresponding point; or, if the processor 3 does not receive the pressure signals sent by the pressure sensors a, b, c and d at 100%, 90%, 80% and 70% of the corresponding points, but only receives the pressure signals sent by the pressure sensors e, f, g, h, i and j at 60%, 50%, 40%, 30%, 20% and 10% of the corresponding points, the residual amount of the object to be measured in the container 4 is between 60% and 70% of the total capacity of the container; for example, assuming that the container 4 contains water and the total capacity of the container 4 is 10 liters, and the remaining amounts of water in the container corresponding to the pressure sensors a, b, c, d, e, f, g, h, i, j are 10 liters, 9 liters, 8 liters, 7 liters, 6 liters, 5 liters, 4 liters, 3 liters, 2 liters and 1 liter, respectively, if it is detected that only the pressure sensors e, f, g, h, i, j generate pressure signals that are not zero, such as the pressure sensors indicated by the dotted black circles in fig. 2, it is said that the reference plane of water may also be referred to as a horizontal liquid level above the pressure sensor e, so that the pressure sensors e, f, g, h, i, j are squeezed by the water, and thus the remaining amount of water in the container 4 is greater than or equal to 6 liters and less than 7 liters.
In summary, in the embodiment of the present invention, the spiral structure and the pressure sensor disposed on the surface of the spiral structure can be used to quickly detect the remaining amount of the object to be detected in the container, and other structural components are not required to be added.
Further, the detection device can further comprise a display screen 5, wherein the display screen 5 is connected with the processor 3 and is used for displaying the residual amount of the object to be detected in the container 4.
Here, in order to intuitively display the remaining amount of the object to be measured in the container 4, the remaining amount of the object to be measured in the container 4 may be displayed through the display screen 5; after the processor 3 calculates the residual amount of the object to be measured in the container 4, a signal carrying the residual amount of the object to be measured in the container 4 can be sent to a display screen 5 or the display screen 5 is directly triggered, so that the display screen 5 displays the residual amount of the object to be measured in the container 4; in practical application, the display screen 5 may be a liquid crystal display screen, an LED display screen, or the like, or may be composed of a nixie tube, a diode, or the like.
Further, the display screen 5 may be further configured to display a reminding message triggered by the processor 3 when the processor 3 detects that the remaining amount of the object to be measured in the container 4 is smaller than a set threshold.
Specifically, the processor 3 compares the calculated remaining amount of the object to be measured in the container 4 with a set threshold, and when it is detected that the remaining amount of the object to be measured in the container 4 is smaller than the set threshold, it indicates that the remaining amount of the object to be measured in the container 4 is small, the processor 3 sends a reminding message to the display screen 5 or the processor 3 triggers the display screen 5 to display the reminding message, so that the display screen 5 displays the reminding message; the reminding message can be set according to actual needs, for example, the reminding message can contain the contents of a prompt for adding the object to be detected into the container 4; the set threshold value can be set according to actual needs; for example, if the object to be measured is water and the set threshold is 3 liters, if the processor 3 detects that the remaining amount of water in the tank 4 is 2 liters and the remaining amount of water in the tank 4 is less than the set threshold, the processor 3 triggers the display 5 to display a warning message containing the contents that the remaining amount of water in the tank 4 is 2 liters and water needs to be added.
The embodiment of the invention also provides a detection method, which is applied to a detection device, wherein the detection device comprises a spiral structure, at least one pressure sensor and a processor; the spiral structure is arranged in a container for containing an object to be detected; the pressure sensors are arranged on the spiral structure and are arranged along a set direction; the processor is connected with the pressure sensor; as shown in fig. 3, the detection method includes:
step 101: acquiring an effective pressure signal generated according to the extrusion of the object to be detected when the pressure sensor is immersed in the object to be detected;
here, when the object to be measured is attached to the surface of the pressure sensor, the pressure sensor generates a pressure signal with a pressure value different from zero due to the extrusion of the object to be measured, i.e., the gravity of the object to be measured, so that an effective pressure signal can be obtained; in this embodiment, the effective pressure signal is taken as an example of a pressure signal with a pressure value different from zero.
Step 102: and determining the residual amount of the object to be measured in the container according to the effective pressure signal and the total volume of the container.
Specifically, a ratio between the number of effective pressure signals and the total number of pressure sensors is obtained; determining the residual amount of the object to be measured in the container according to the ratio and the total capacity of the container; or determining a first pressure sensor corresponding to the effective pressure signal with the minimum pressure value in the effective pressure signals; detecting whether the first pressure sensor has an adjacent second pressure sensor; wherein the second pressure sensor is a pressure sensor which is not immersed in the object to be measured; and if the first pressure sensor is provided with the adjacent second pressure sensor, determining the residual amount of the object to be measured in the container according to the set position of the first pressure sensor and the corresponding relation between the set position of each pressure sensor and the proportion value of the residual amount of the object to be measured in the container to the total volume.
Here, the remaining amount may be a ratio of the object to be measured to the total volume of the container, a ratio of the current amount of the object to be measured to the initial amount of the object to be measured, or a relative size of the object to be measured with reference to a reference object or a reference object; the corresponding relation between the set position of the pressure sensor and the proportion value of the residual quantity of the object to be measured in the container to the total volume can be preset and can be adjusted adaptively as required, and because each pressure sensor is positioned at different positions on the spiral structure, and the corresponding relation exists between different positions on the spiral structure and the proportion value of the residual quantity of the object to be measured in the container to the total volume, namely the object to be measured in the corresponding container at different positions has different residual quantities, the relative position of the reference surface of the object to be measured on the spiral structure can be known according to whether the pressure sensor generates an effective pressure signal and the position, so that the residual quantity of the object to be measured in the container can be obtained.
In addition, when the total volume of the container is known and the shape of the container is more regular, for example, the container is in the shape of a cylinder, a cuboid and the like with central symmetry, a corresponding relation exists between different positions on the spiral structure and a proportion value of the residual quantity of the object to be measured in the container to the total volume; for example, if the total volume of the centrosymmetric container is 8 liters, the number of the pressure sensors is 8, the pressure sensors are arranged on the spiral structure at equal intervals and are arranged from the top of the spiral structure downwards, and the bottom of the spiral structure is not correspondingly provided with the pressure sensors, so as to equally divide the total volume of the container into 8 parts, and when the number of the acquired non-zero pressure signals is 5, the residual volume of the object to be measured in the container can be determined to be between 5 liters and 6 liters; the detection method can be applied to the detection device shown in fig. 1.
Further, after determining the remaining amount of the analyte in the container, the detection method may further include: and displaying the residual amount of the object to be detected in the container.
Here, in order to intuitively display the remaining amount of the object in the container, the remaining amount of the object in the container may be displayed in real time.
Further, after determining the remaining amount of the analyte in the container, the detection method may further include: and when the residual quantity of the object to be detected in the container is detected to be smaller than a set threshold value, displaying a reminding message.
Specifically, the calculated residual amount of the object to be measured in the container is compared with a set threshold value, and when the fact that the residual amount of the object to be measured in the container is smaller than the set threshold value is detected, a reminding message is displayed if the residual amount of the object to be measured in the container is small; the reminding message can be set according to actual needs, for example, the reminding message can contain the contents of a prompt and the like for adding the object to be detected into the container; the set threshold value can be set according to actual needs; for example, if the object is water and the set threshold is 3 liters, if it is detected that the remaining amount of water in the tank is 2 liters and the remaining amount of water in the tank is less than the set threshold, a warning message including the contents that the remaining amount of water in the tank is 2 liters and water needs to be added is displayed.
The embodiment of the invention also provides household electrical appliance equipment which comprises the detection device.
Here, the household electrical appliance may be an intelligent rice bin, an electric cooker or other appliance, and the electric cooker may be provided with a device for storing rice or water.
The embodiment of the present invention is further described below by a specific application example, as shown in fig. 4, in this example, the spiral structure 1 is taken as a spiral rod, the container 4 is taken as a rice bin, and the object to be measured is taken as rice, that is, the detection device is taken as an example to detect the amount of remaining rice in the rice bin, and the detection device is connected with an electric rice cooker 10; the screw rod is arranged in the rice bin, one end of the screw rod is connected with the bottom of the rice bin, the screw pitch of the screw rod is p, 100 pressure sensors 2 which are distributed at equal intervals are arranged on the screw rod, and the ratio of the residual rice quantity to the total capacity of the rice bin is respectively indicated to be 1% -100%; the bottom of the rice bin is provided with an opening which is connected with an air shuttle 6 through a transmission pipeline, and the transmission pipeline is provided with a valve 7; one end of the air shuttle 6 is connected with a fan 8, and the other end is connected with an air pipe 9; one end of the air pipe 9 is connected with the air shuttle 6, and the other end is connected with the electric cooker 10; the valve 7 and the fan 8 are both connected to a controller, and the opening and closing of the valve 7, the opening and closing of the fan 8, the rotating speed and the like are controlled by the controller such as a single chip microcomputer; the display screen 5 is connected with the processor 3; the processor 3 can be connected with the controller; in practical application, the controller and the processor 3 can be integrated in the rice cooker 10 or can be separately arranged on the rice bin, and the processor 3 mainly used for controlling the pressure sensor 2 and the display screen 5 can also be realized by the controller.
In the example, the screw rod and the pressure sensor 2 arranged on the surface of the screw rod are mainly utilized to be matched with each other for controlling so as to detect the residual rice amount in the rice bin; the principle of the main detection process is as follows:
firstly, grading data signals of a pressure sensor 2 on the surface of a spiral rod; for example, if the current remaining rice amount is equal to or greater than 50% of the total capacity of the rice bin, the remaining rice amount grade is divided into a first grade; if the current remaining rice amount is less than or equal to 20% of the total capacity of the rice bin, dividing the remaining rice amount level into a second level; of course, the division may be further detailed as necessary.
Secondly, the current residual rice quantity and the residual rice quantity grade of the rice bin are obtained through a pressure sensor 2 on the surface of the screw rod; for example, after the data signal, i.e., the pressure signal, of each pressure sensor 2 is acquired, whether the pressure sensor 2 corresponding to the pressure signal is extruded by rice, i.e., whether the pressure sensor is subjected to the gravity action of the rice is judged according to the magnitude of the pressure signal, so that the current remaining rice amount and grade of the rice bin are obtained according to the position of the pressure sensor and the ratio of the corresponding remaining rice amount to the total capacity of the rice bin.
Thirdly, if the current remaining rice amount is in the first grade, that is, the current rice bin has sufficient rice amount, the rice cooker 10 can continue to cook without adding rice into the rice bin.
And fourthly, in the continuous cooking process, the pressure sensor 2 on the surface of the screw rod continuously acquires the remaining rice quantity of the current rice bin, and if the current remaining rice quantity is the second grade, namely the current rice bin is not sufficient, rice may need to be added into the rice bin.
A specific work flow of the detection method for detecting the amount of remaining rice in the rice bin based on the detection device is described below, as shown in fig. 5, the detection method includes:
step 201: obtaining the grade of the residual rice in the rice bin before cooking;
specifically, before the cooking process starts, the processor 3 acquires the amount of remaining rice in the rice bin and the level of the amount of remaining rice through the pressure sensor 2 on the surface of the screw.
Step 202: judging whether the level of the remaining rice is a second level, if so, executing a step 208, otherwise, executing a step 203;
specifically, according to the remaining rice level obtained in step 201, the processor 3 or the controller determines whether the remaining rice level is a second level, if the remaining rice level is the second level, step 208 is executed, otherwise step 203 is executed.
Step 203: performing a cooking process;
specifically, the controller sends a control signal to the valve 7 or energizes the valve 7, and the like, so that the valve 7 is opened, and rice flows into the air shuttle 6 from an opening at the bottom of the rice bin; meanwhile, the controller sends a control signal to the fan 8 or the fan 8 is powered on, so that the fan 8 starts to work, the fan 8 generates rightward wind to blow the rice from the wind shuttle 6 to the wind pipe 9, and the rice enters the electric rice cooker 10 through the wind pipe 9, so that the electric rice cooker 10 can cook the rice.
Step 204: judging whether the level of the remaining rice in the cooking process is a first level, if so, executing a step 205, otherwise, executing a step 208;
specifically, the processor 3 obtains the remaining rice amount and the remaining rice amount grade in the rice bin in the cooking process in real time through the pressure sensor 2 on the surface of the screw rod, and judges whether the remaining rice amount grade in the cooking process is a first grade, if yes, step 205 is executed; if the remaining rice level during the cooking process is determined to be the second level, step 208 is performed.
Here, in step 203, the rice in the rice bin enters the rice cooker 10 under the combined action of the air shuttle 6, the valve 7, the blower 8 and the air pipe 9, and the processor 3 can obtain the remaining rice amount and the level of the remaining rice amount in the rice bin during the cooking process in real time through the pressure sensor 2 on the surface of the screw rod when the process starts until the process ends.
Step 205: displaying a prompt message;
specifically, when the processor 3 determines that the level of the remaining rice in the cooking process is the first level, the display screen 5 displays a prompt message that the current remaining rice in the cooking process is equal to or more than 50% of the total capacity of the rice bin.
Step 206: continuing to perform the cooking process;
specifically, the rice in the rice bin continues to enter the electric cooker 10 under the combined action of the air shuttle 6, the valve 7, the fan 8 and the air pipe 9 so as to continue to perform the cooking treatment.
Here, the display screen may display a message that the cooking process can be continuously performed.
Step 207: judging whether the level of the remaining rice in the rice bin is a second level after the cooking treatment is finished, if so, executing a step 208, and if not, executing a step 206;
specifically, the processor 3 obtains the remaining rice amount and the remaining rice level in the rice bin after the cooking process is finished through the pressure sensor 2 on the surface of the screw rod, and judges whether the remaining rice level in the rice bin after the cooking process is finished is the second level, if so, step 208 is executed, otherwise, step 206 is executed.
Step 208: the message of adding rice is displayed.
Here, when the processor 3 determines that the level of the amount of remaining rice in the rice bin is the second level, the display screen 5 displays a rice adding message to remind that rice needs to be added to the rice bin.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and scope of the present invention are included in the protection scope of the present invention.
Claims (15)
1. A detection device, characterized in that the detection device comprises: a helix, at least one pressure sensor, and a processor; the spiral structure is arranged in a container for containing an object to be detected; the pressure sensors are arranged on the spiral structure and are arranged along a set direction; the processor is connected with the pressure sensor; wherein,
the spiral structure is used for enabling the pressure sensor to be immersed into the object to be measured;
the pressure sensor is used for generating an effective pressure signal according to the extrusion of the object to be detected when the pressure sensor is immersed in the object to be detected;
and the processor is used for determining the residual amount of the object to be measured in the container according to the effective pressure signal and the total volume of the container.
2. The detection apparatus according to claim 1, wherein the processor is specifically configured to:
obtaining a ratio between the number of effective pressure signals and the total number of pressure sensors;
and determining the residual amount of the object to be measured in the container according to the ratio and the total volume of the container.
3. The detection apparatus according to claim 1, wherein the processor is specifically configured to:
determining a first pressure sensor corresponding to the effective pressure signal with the minimum pressure value in the effective pressure signals;
detecting whether the first pressure sensor has an adjacent second pressure sensor; wherein the second pressure sensor is a pressure sensor which is not immersed in the object to be measured;
and if the first pressure sensor is provided with the adjacent second pressure sensor, determining the residual amount of the object to be measured in the container according to the set position of the first pressure sensor and the corresponding relation between the set position of each pressure sensor and the proportion value of the residual amount of the object to be measured in the container to the total volume.
4. The detection device according to claim 1, further comprising: and the display screen is connected with the processor and used for displaying the residual amount of the object to be measured in the container.
5. The detection device according to claim 4, wherein the display screen is further configured to display a warning message triggered by the processor when the processor detects that the remaining amount of the object to be tested in the container is less than a set threshold.
6. The test device of claim 1, wherein the spiral structure is attached to the bottom of the container.
7. The test device of claim 6, wherein the connection is a detachable connection or a fixed connection.
8. The detection device according to claim 1, wherein the pressure sensors are arranged on the helical structure at equal or unequal intervals.
9. The test device of any one of claims 1 to 8, wherein the helical structure is a helical rod.
10. A detection method is characterized by being applied to a detection device, wherein the detection device comprises a spiral structure, at least one pressure sensor and a processor; the spiral structure is arranged in a container for containing an object to be detected; the pressure sensors are arranged on the spiral structure and are arranged along a set direction; the processor is connected with the pressure sensor;
the detection method comprises the following steps:
acquiring an effective pressure signal generated according to the extrusion of the object to be detected when the pressure sensor is immersed in the object to be detected;
and determining the residual amount of the object to be measured in the container according to the effective pressure signal and the total volume of the container.
11. The method of claim 10, wherein determining the remaining amount of the analyte in the container based on the effective pressure signal and the total volume of the container comprises:
obtaining a ratio between the number of effective pressure signals and the total number of pressure sensors;
and determining the residual amount of the object to be measured in the container according to the ratio and the total volume of the container.
12. The method of claim 10, wherein determining the remaining amount of the analyte in the container based on the effective pressure signal and the total volume of the container comprises:
determining a first pressure sensor corresponding to the effective pressure signal with the minimum pressure value in the effective pressure signals;
detecting whether the first pressure sensor has an adjacent second pressure sensor; wherein the second pressure sensor is a pressure sensor which is not immersed in the object to be measured;
and if the first pressure sensor is provided with the adjacent second pressure sensor, determining the residual amount of the object to be measured in the container according to the set position of the first pressure sensor and the corresponding relation between the set position of each pressure sensor and the proportion value of the residual amount of the object to be measured in the container to the total volume.
13. The method for detecting according to claim 10, wherein after determining the remaining amount of the object in the container, further comprising:
and displaying the residual amount of the object to be detected in the container.
14. The method for detecting according to claim 10, wherein after determining the remaining amount of the object in the container, further comprising:
and when the residual quantity of the object to be detected in the container is detected to be smaller than a set threshold value, displaying a reminding message.
15. A household appliance comprising a detection device according to any one of claims 1 to 9.
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| CN102519544A (en) * | 2011-12-23 | 2012-06-27 | 合肥工业大学 | Water depth measuring sensor |
| CN204071714U (en) * | 2013-08-22 | 2015-01-07 | 翱泰温控器(深圳)有限公司 | For the thermal control equipment of liquid heater, 360 ° of wireless electrical connection systems and utensil |
| CN204192333U (en) * | 2014-11-13 | 2015-03-11 | 绵阳市树人机电制造有限责任公司 | A kind of energy-saving steam formula gruel device |
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