CN218044612U - Control system of intelligence dinner plate - Google Patents
Control system of intelligence dinner plate Download PDFInfo
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- CN218044612U CN218044612U CN202220987472.0U CN202220987472U CN218044612U CN 218044612 U CN218044612 U CN 218044612U CN 202220987472 U CN202220987472 U CN 202220987472U CN 218044612 U CN218044612 U CN 218044612U
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Abstract
The utility model discloses a control system of an intelligent dinner plate, which comprises a control module arranged at the bottom of a dinner plate body, wherein the bottom of the dinner plate body is provided with a display area which can transmit light, and whether food covers the display area or not enables the light transmission state to change; the control module comprises a main control unit, and a photosensitive detection unit, a temperature detection unit, a heating control unit, a display unit and a key unit which are respectively connected with the main control unit; and the photosensitive detection unit is used for detecting the light transmission state of the display area and lightening the LED lamp corresponding to the position according to the light transmission state of different positions. The heat preservation function of dinner plate itself can not only be realized, can also show the pattern at the dinner plate bottom through light control, bring for child's visual experience, effectively promote the feed interest.
Description
Technical Field
The utility model belongs to the technical field of the tableware, concretely relates to control system of intelligence dinner plate.
Background
The dinner plate is a tool for containing food, is mostly made of flat stainless steel, is divided into a plurality of sunken areas on the surface, is used for containing different foods respectively, and is light and durable, so that the dinner plate is widely used in daily life.
Because the food is easy to cool and affects the eating feeling, people design the heat-preservation dinner plate which can preserve heat of the food and is beneficial to people to eat warm food quickly and in time. However, most of the heat preservation dinner plates on the current market can only preserve heat of food, and if power supplies such as batteries are used for supplying power to the heating film for heat preservation, a control system is needed to be used for controlling the dinner plates to heat and preserve heat. The traditional control system only has a heat preservation function, so that the function is single, the heat preservation dinner plate is suitable for adults, but the attraction is lacked for children, the interestingness is not enough, the children probably do not like to eat due to the play and the like, therefore, the heat preservation dinner plate with the conventional single function cannot attract the children to eat, and the using requirement of children users cannot be met due to the single heat preservation function.
SUMMERY OF THE UTILITY MODEL
The utility model aims at prior art's defect, provide a control system and method of intelligence dinner plate, more be applicable to the child, can not only realize the heat preservation function of dinner plate itself, still have light and remind the function, whether can light through dinner plate body bottom lights, instruct the dining progress, consequently can bring for child's visual experience, effectively guide promotes the feed interest.
In order to realize the above purpose, the utility model adopts the following technical scheme: a control system of an intelligent dinner plate comprises a control module arranged at the bottom of a dinner plate body, wherein a display area capable of transmitting light is arranged at the bottom of the dinner plate body, and whether food covers the display area or not enables the light transmitting state to change; the control module comprises a main control unit, and a photosensitive detection unit, a temperature detection unit, a heating control unit, a display unit and a key unit which are respectively connected with the main control unit; the photosensitive detection unit is used for detecting the light transmission state of the display area and lightening the LED lamps corresponding to the positions according to the light transmission state of the different positions; the temperature detection unit detects the temperature of the dinner plate body and sends a temperature signal to the main control unit when the temperature is lower than a preset temperature; the heating control unit receives the temperature signal sent by the main control unit and controls the heating film at the bottom of the dinner plate body to heat the dinner plate body to a preset temperature; the display unit displays the light control state and the preset temperature of the LED lamps in the display area; the button unit controls the intelligent dinner plate to be opened or closed and is set with a preset temperature.
Furthermore, the number of the display areas is one or more, and one or more light patterns composed of a plurality of LED lamps are arranged in a single display area.
Furthermore, when the number of the light patterns is multiple, different shapes are adopted.
Furthermore, the photosensitive detection unit comprises one or more area detection circuits, each area detection circuit comprises a photosensitive resistor, and the photosensitive resistor is arranged in each lamp pattern and used for sensing the light intensity of the lamp pattern area.
Furthermore, the area detection circuit further comprises two resistors, one end of one resistor is respectively connected with the other resistor and the photosensitive resistor, and the other end of one resistor is connected with the main control unit.
Furthermore, when the LED lamp is lightened, the photoresistor stops perceiving the light intensity of the light pattern area.
Furthermore, when the food corresponding to a single light pattern is eaten, a plurality of LED lamps forming the light pattern are lightened in a flickering or breathing state.
Furthermore, the display area of the dinner plate body is made of transparent elastic materials such as silica gel.
Furthermore, the photosensitive detection unit can be replaced by a pressure detection unit, the pressure detection unit comprises a pressure sensor which is correspondingly arranged in the display area, and the LED lamp in the display area is lightened according to the detected weight change of the dinner plate body.
Furthermore, the control module further comprises a charging management unit and a voltage reduction circuit unit, the charging management unit and the voltage reduction circuit unit are respectively connected with the storage battery, and the main control unit is connected with the voltage reduction circuit unit; the charging management unit is used for charging a storage battery arranged at the bottom of the dinner plate body; the voltage reduction circuit unit is externally connected with a charging interface, reduces the voltage of the storage battery to the working voltage of the main control unit, and supplies power to the main control unit.
Further, the temperature detection unit adopts an NTC thermistor.
Furthermore, the heating control unit comprises a heating film, a diode D5, an MOS (metal oxide semiconductor) tube Q1, a resistor R20 and a resistor R21, one end of the resistor R20 is connected with the main control unit, the other end of the resistor R20 is connected with the resistor R21 and the grid electrode of the MOS tube Q1, the drain electrode of the MOS tube Q1 is respectively connected with the heating film and the diode D5, the two ends of the diode D5 are connected with the two ends of the heating film, and the heating film is connected with the storage battery.
The utility model also provides a control method of intelligent dinner plate, including following step:
the method comprises the following steps that firstly, the dinner plate is started, the temperature T of the dinner plate body is detected, if the temperature T is lower than a preset temperature, a heating film is started to heat food in the dinner plate body, and if the temperature T is higher than the preset temperature, heating is stopped;
step two, detecting the resistance value of the photo resistor in the display area, wherein if the food covers the display area at the bottom of the dinner plate body, the light is weak, the resistance value is maximum, and if no food covers the display area, the light is strong, and the resistance value is minimum; when the resistance value is minimum, the LED lamp in the display area is lightened, and the photosensitive resistor stops detecting the light intensity;
and step three, stopping the machine when the working time is longer than the preset time or the user actively shuts down the machine.
Furthermore, in the second step, the number of the display areas is one or more, and one or more light patterns composed of a plurality of LED lamps are arranged in a single display area.
Furthermore, in the second step, each light pattern corresponds to one photo resistor.
Furthermore, when the food corresponding to the single light pattern is eaten, the LED lamps corresponding to the light pattern are lightened in a flickering or breathing state.
Adopt the technical scheme of the utility model, the beneficial effects of the utility model are that:
(1) The dinner plate has the advantages that the dinner plate has a conventional food heat preservation function and a light reminding function, can detect whether food in the display area of the dinner plate body is eaten up or not, and lights up the display area if the food is eaten up, so that the display area is stimulated by visual perception of children, the interestingness is increased, and the enthusiasm of eating of the children is encouraged and improved;
(2) The bottom of the bottom dinner plate body is provided with the photoresistor, whether food is eaten or not can be judged by detecting the resistance value of the photoresistor, the structural design is simple and easy to realize, and the use is reliable;
(3) The display area can be designed to be single or multiple, single or multiple light patterns can be designed in each display area, a plurality of LED lamps forming the light patterns are displayed in a flickering or breathing state, and the resistance value of the photosensitive resistor is detected only in the extinguishing state of the display area, so that the phenomenon that the bright light of the light in the display area interferes with the photosensitive resistor to judge food by mistake is prevented;
(4) When the service time is too long, the automatic shutdown saves electric quantity, and avoids unnecessary resource waste caused by cyclic heating for too long time.
Drawings
FIG. 1 is a schematic diagram of the internal structure of an intelligent dinner plate;
FIG. 2 is a schematic top view of a dining plate body of the intelligent dining plate;
FIG. 3 is a circuit diagram of a control system for an intelligent dining plate;
fig. 4 is a flow chart of a control method of an intelligent dining plate.
In the figure: the dinner plate comprises a dinner plate body, a base, a control PCB (printed circuit board) board, a storage battery, a heating film, a display area, a light pattern, a lamp pattern, a 71LED (light-emitting diode) lamp, a charging management unit, a voltage reduction circuit unit, a main control unit, a photosensitive detection unit, 11 photoresistors, a temperature detection unit, a heating control unit, a display unit and a key unit, wherein the dinner plate body comprises 1 dinner plate body, 2 bases, 3 control PCB boards, 4 storage batteries, 5 heating films, 6 display areas, 7 light patterns, 7 LED lamps, 8 charging management units, 9 voltage reduction circuit units, 10 main control units, 11 photosensitive detection units, 110 photoresistors, 12 temperature detection units, 13 heating control units, 14 display units and 15 key units.
Detailed Description
The technical solutions of the present invention are further described and illustrated below by specific embodiments, so that the present invention is more clear and understood. Other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied in other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the features in the following embodiments and examples may be combined with each other without conflict.
Example 1
As shown in fig. 1 to 3, the present embodiment relates to a control system for an intelligent dining plate, which includes a control module, and is mainly applied to an intelligent dining plate capable of heating and preserving heat. The intelligent dinner plate comprises a dinner plate body 1 and a base 2, wherein a light-transmitting display area 6 is arranged at the bottom of the dinner plate body 1, the upper surface of the base 2 is made of a light-transmitting material or is provided with a plurality of light-transmitting holes (light rays used for the dinner plate body penetrate through the inside of the base), whether food covers the display area 6 or not enables the light-transmitting state seen in the base to change, a heating film 5 is arranged at a non-display area 6 at the bottom of the dinner plate body 1, the heating film 5 of the embodiment adopts an annular heating film and is wound on the periphery of the display area 6 at the middle part; be equipped with control PCB board 3 and battery 4, LED lamp display element in base 2, control module locates on control PCB board 3, LED lamp display element corresponds locates display area 6 below (also can with set up on the control PCB board 3 between a plurality of LED lamps of LED lamp display element). The upper surface at base 5 is pasted to heating film 5, and battery 4 supplies power and generates heat after 3 controls of control PCB board, and when dinner plate body 1 was placed on base 2, the heat of 5 releases of heating film kept warm for the food heating in the dinner plate body 1 after 2 upper surfaces of base and the heat conduction of dinner plate body 1 bottom.
In a preferred embodiment, the display areas 6 are designed as one or more than one, and one or more than one lighting pattern 7 consisting of a plurality of LED lamps is arranged in a single display area 6. As shown in fig. 2, a single display area 6 is used, in which 3 differently shaped light patterns 7 are designed, having a square, triangular and pentagonal shape.
Specifically, the control module includes a charging management unit 8, a voltage reduction circuit unit 9, a main control unit 10, a photosensitive detection unit 11, a temperature detection unit 12, a heating control unit 13, a display unit 14 and a key unit 15, the charging management unit 8 is connected with the voltage reduction circuit unit 9, and the voltage reduction circuit unit 9, the photosensitive detection unit 11, the temperature detection unit 12, the heating control unit 13, the display unit 14 and the key unit 15 are respectively connected with the main control unit 10.
The main control unit 10 adopts an MCU control chip, and in this embodiment, adopts a BF7612CM control chip.
The charging management unit 8 is connected to the charging interface and the storage battery 4, and is used for charging the storage battery 4 arranged at the bottom of the dinner plate body 1. The charging management unit 8 can adopt various charging control chips purchased in the market, for example, a power management series chip of a model such as Cinchou AP5056H can be adopted.
The voltage reduction circuit unit 9 is connected to the battery 4, reduces the voltage of the battery 4 to the operating voltage of the main control unit 10, and supplies power to the main control unit 10. The voltage reduction circuit unit 9 adopts a voltage reduction chip purchased in the market, such as a voltage reduction chip of the Pentium-doped lithium niobate (CMOS) AP2962 series.
The photosensitive detection unit 11 is configured to detect a light transmittance state of the display area 6, and light the LED lamps corresponding to different positions according to the light transmittance state of the different positions, that is, when food above a certain light pattern is eaten up, the food is completely transparent, and then light the LED lamps forming the light pattern. The 3 light patterns of this embodiment correspond to three area detection circuits, wherein one path is a photo resistor RA3, a resistor R1 and a resistor R2, one end of the resistor R2 is connected to the resistor R1 and the photo resistor RA3, respectively, and the other end of the resistor R2 is connected to the main control unit 3; the second path is a photoresistor RA2, a resistor R3 and a resistor R4, one end of the resistor R4 is respectively connected with the resistor R3 and the photoresistor RA2, and the other end of the resistor R4 is connected with the main control unit 3; the third path is a photoresistor RA1, a resistor R5 and a resistor R6, one end of the resistor R6 is respectively connected with the resistor R5 and the photoresistor RA1, and the other end of the resistor R6 is connected with the main control unit 3. Since each area detection circuit comprises a photo resistor, a photo resistor is provided in each light pattern 7 for sensing the light intensity in the area of the light pattern 7.
As shown in fig. 2, a photo-resistor 110 (oval) is arranged in the middle of each light pattern 7 for sensing the light intensity of the area, when the food is not eaten, the light of the area is shielded by the food, the light is weak, and the resistance of the photo-resistor is large; when the food in the region is eaten up, the light becomes strong, the light in the region is directly sensed by the photosensitive resistor 110 through the dinner plate body 1 (if transparent silica gel is adopted) and the upper shell (the shell on the upper surface) of the base 2, and the resistance value of the photosensitive resistor becomes large. Whether the food in the area is eaten up can be detected by detecting the resistance value of the light-sensitive resistor 110. The plurality of LED lamps 71 are arranged around the photosensitive resistor 110 to form a light pattern, and when the photosensitive resistor 110 senses that the food is eaten up, the main control unit 10 lights the LED lamps to display the corresponding pattern such as a pentagon, so that the children are encouraged to increase the interest of eating, and the children are enabled to love to eat and the interest of eating is increased.
The resistors RA 1-RA 3 are photoresistors, and the resistance of the photoresistors is smaller under the environment with stronger light. The photoresistor is located in the middle of the light pattern (can be located on the same plane or below), when a child does not eat rice, the pattern is shielded by food, and light sensed by the photoresistor is weak, so that the resistance of the photoresistor is large (for example, about 200K Ω, at the moment, the MCU detects that the voltage value Vmcu = VCC (100K/(100K +) 200K)) = VCC/3) of the photoresistor port; when the child finishes eating the meal and eats the food on the pattern, the light directly irradiates the photoresistor through the bottom of the silica gel dinner plate and the upper shell of the base, so that the resistance value of the photoresistor is reduced (for example, about 50K Ω, the MCU detects that the voltage value Vmcu = VCC (100K/(100K 50K)) =2 VCC/3) of the port of the photoresistor; whether food above the display area is completely eaten by children can be judged through the voltage value of the MCU port; when the voltage value Vmcu of the port is detected to be less than VCC/2, the area is indicated to be blocked by food; when the voltage value Vmcu of the port is detected to be larger than VCC/2, the area is indicated to be not blocked by food, and then the lamp is turned on to light the area, so that children are encouraged to finish eating, and interestingness is increased. When the lamp is turned on, the lamp is displayed in a flashing or breathing state, when the LED lamp in the flashing (the mode that the LED lamp is turned on or off for a specific time such as 5 seconds) or breathing state (the mode that the LED lamp is turned on from the beginning of the lamp at one part of the lamp light pattern until the whole lamp light pattern is turned on) is turned off, the resistance value of the photoresistor is detected, and if the lamp light pattern is detected to be shielded by food, the LED lamp is turned off. The photoresistor is not detected in the state that the lamp is lighted, because light can be induced by the photoresistor when the lamp is lighted and the misjudgment that food is eaten up can be caused.
The temperature detection unit 12 is used for detecting the food temperature of the dinner plate body 1, sending a temperature signal to the main control unit 10 when the temperature is lower than a preset temperature, and the main control unit 10 controls the heating control unit 13 to heat. The temperature detection unit 12 comprises an NTC thermistor, a resistor R7 and a resistor R8, one end of the resistor R8 is connected with the NTC thermistor and the resistor R7, and the other end of the resistor R8 is connected with the main control unit 10.
The heating control unit 13 receives the temperature signal sent by the main control unit 10, and controls the heating film 5 on the upper surface of the base 1 at the bottom of the dinner plate body 1 to heat the dinner plate body 1 to a preset temperature. The heating control unit 13 comprises a heating film 5, a diode D5, an MOS tube Q1, a resistor R20 and a resistor R21, one end of the resistor R20 is connected with the MCU control chip of the main control unit 10, the other end of the resistor R21 is connected with the grid electrode of the MOS tube Q1, the drain electrode of the MOS tube Q1 is respectively connected with the heating film 5 and the diode D5, the two ends of the diode D5 are connected with the two ends of the heating film 5, and the heating film 5 is connected with the storage battery 4.
When the temperature detected by the NTC thermistor is lower than the set HEAT preservation temperature, the HEAT port of the MCU control chip outputs high level, at the moment, the MOS tube Q1 is conducted, and the heating film 5 can be heated. When the temperature detected by the NTC is higher than the set HEAT preservation temperature, the HEAT port outputs low level, at the moment, the MOS tube Q1 is cut off, and the heating film 5 stops heating. Thereby maintaining the temperature in the plate at the set temperature.
The display unit 14 displays the light control state of the LED lamp in the display area and the preset temperature (which is an original preset temperature when leaving the factory) to be heated by using a display screen, and displays that the LED lamp of the light pattern is in a lighting state if the food corresponding to a certain light pattern is eaten up.
The key unit 15 controls various functional operations such as opening or closing of the intelligent dinner plate, setting of preset temperature and the like. The key unit 15 may employ a manner of providing a plurality of function keys in combination with a temperature knob.
As shown in fig. 4, the present embodiment relates to a method for controlling an intelligent service plate, which corresponds to a control system, and includes the following steps:
the intelligent dinner plate is started by a user through a key unit, the temperature T of the current dinner plate body is detected by the intelligent dinner plate, if the temperature T is lower than a preset temperature, a heating film is opened to heat food in the dinner plate body, and if the temperature T is higher than the preset temperature, the heating film is closed to stop heating;
secondly, detecting the resistance value of the photo-resistor in the display area, wherein the display area at the bottom of the dinner plate body covered by food has weak light and the maximum resistance value, and the display area without food is strong light and the minimum resistance value; when the resistance value is minimum, namely the food in the display area is completely eaten, the LED lamp in the display area is lightened, the light-sensitive resistor stops detecting the light intensity, if the resistance value is maximum, the food is not eaten, and the LED lamp is not lightened;
and step three, stopping when the working time is longer than the preset time or the user actively shuts down.
In the second step, the number of the display areas is one or more, one or more lighting patterns composed of a plurality of LED lamps are arranged in a single display area, and whether the food in each display area is eaten or not needs to be judged by detecting the resistance value of the photosensitive resistor in each display area or lighting pattern.
In the second step, each light pattern corresponds to one photoresistor.
When the food corresponding to the single light pattern is eaten, the LED lamps forming the light pattern are lightened in a flickering or breathing state.
When a user uses the dinner plate to start up, the MCU control chip detects the temperature of the dinner plate in real time, and if the temperature of the dinner plate is lower than the set temperature, the heating film is opened to heat; otherwise, the heating film is closed. Simultaneously, sequentially detecting the resistance values of the photosensitive resistors of all the display areas under the state that the LED lamps are turned off so as to judge whether food exists in the display areas, and if the food corresponding to a certain light pattern is detected to be eaten up, lightening a plurality of LED lamps forming the light pattern in a flashing or breathing state; otherwise, if the food is not eaten or covers the display area, the display area is extinguished. And finally, the service plate is shut down and stops working until the service plate is closed by the user through the shutdown key or the working time exceeds 2 hours.
Example 2
Different from embodiment 1, do not adopt photosensitive detecting element among the intelligent dinner plate control system of this embodiment, but adopt pressure detection unit, pressure detection unit includes pressure sensor, corresponds to set up in the display area, changes according to the dinner plate body weight that detects, lights this display area's LED lamp. Because the display area of the dinner plate body is made of transparent silica gel which has elasticity, when food is placed at different parts, the pressure sensors corresponding to the lower parts of the parts receive different pressures, and when the food covers the display area (or the light patterns), the pressure is high, and the LED lamp is not lightened; when the food is eaten, the pressure detected by the display area (or the light pattern) is minimum, and the main control unit controls the LED lamp to be lightened.
The intelligent dinner plate control method of the embodiment also realizes the state of whether eating is finished or not through the pressure sensor, and the LED lamp is turned on. The lighting pattern of the LED lamps is the same as in embodiment 1, and a plurality of LED lamps are lit in a blinking or breathing state.
It should be noted that the drawings provided in the above embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
The foregoing is only a preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, the present invention has been described in more detail through the above embodiments. The present invention can also include other equivalent embodiments, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (10)
1. A control system of an intelligent dinner plate is characterized by comprising a control module arranged at the bottom of a dinner plate body, wherein a display area capable of transmitting light is arranged at the bottom of the dinner plate body, and whether food covers the display area or not enables the light transmitting state to change; the control module comprises a main control unit, and a photosensitive detection unit, a temperature detection unit, a heating control unit, a display unit and a key unit which are respectively connected with the main control unit;
the photosensitive detection unit is used for detecting the light transmission state of the display area and lightening the LED lamps corresponding to the positions according to the light transmission state of the different positions;
the temperature detection unit detects the temperature of the dinner plate body and sends a temperature signal to the main control unit when the temperature is lower than a preset temperature;
the heating control unit receives the temperature signal sent by the main control unit and controls the heating film at the bottom of the dinner plate body to heat the dinner plate body to a preset temperature;
the display unit displays the light control state and the preset temperature of the LED lamps in the display area;
the key unit controls the intelligent dinner plate to be opened or closed and sets a preset temperature.
2. The control system of an intelligent dining plate according to claim 1, wherein the number of display areas is one or more, and one or more light patterns consisting of a plurality of LED lamps are arranged in a single display area.
3. The control system of an intelligent dining plate according to claim 2, wherein the photosensitive detection unit comprises one or more area detection circuits, each area detection circuit comprises a photosensitive resistor, and the photosensitive resistor is arranged in each light pattern and used for sensing the light intensity of the area of the light pattern.
4. The control system of an intelligent dining plate according to claim 3, wherein when the LED lamp is turned on, the photoresistor stops sensing the light intensity of the light pattern area.
5. The control system for the intelligent dinner plate according to claim 3 or 4, wherein when the food corresponding to a single light pattern is eaten, a plurality of LED lamps forming the light pattern are lighted in a flashing or breathing state.
6. The control system of an intelligent dinner plate according to claim 3 or 4, wherein when there are a plurality of said light patterns, they are different in shape.
7. The control system of an intelligent dinner plate according to claim 1, wherein the photosensitive detection unit can be replaced by a pressure detection unit, the pressure detection unit comprises a pressure sensor, the pressure sensor is correspondingly arranged in a display area, and an LED lamp in the display area is lighted according to the detected weight change of the dinner plate body.
8. The control system of an intelligent service plate of claim 1, wherein the control module further comprises a charging management unit and a voltage reduction circuit unit, the charging management unit and the voltage reduction circuit unit are respectively connected with the storage battery, and the main control unit is connected with the voltage reduction circuit unit;
the charging management unit is externally connected with a charging interface and is used for charging a storage battery arranged at the bottom of the dinner plate body;
and the voltage reduction circuit unit reduces the voltage of the storage battery to the working voltage of the main control unit and supplies power to the main control unit.
9. The control system of an intelligent dining plate of claim 1, wherein the display area of the dining plate body is made of transparent elastic material.
10. The control system of an intelligent dinner plate according to claim 9, wherein the photosensitive detection unit can be replaced by a pressure detection unit, the pressure detection unit comprises a pressure sensor, the pressure sensor is correspondingly arranged in a display area, and an LED lamp in the display area is lighted according to the detected weight change of the dinner plate body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220987472.0U CN218044612U (en) | 2022-04-27 | 2022-04-27 | Control system of intelligence dinner plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220987472.0U CN218044612U (en) | 2022-04-27 | 2022-04-27 | Control system of intelligence dinner plate |
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| CN218044612U true CN218044612U (en) | 2022-12-16 |
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| CN202220987472.0U Active CN218044612U (en) | 2022-04-27 | 2022-04-27 | Control system of intelligence dinner plate |
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