CN211603575U - Intelligent dining cabinet and service plate detection device thereof - Google Patents

Intelligent dining cabinet and service plate detection device thereof Download PDF

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Publication number
CN211603575U
CN211603575U CN201922424020.2U CN201922424020U CN211603575U CN 211603575 U CN211603575 U CN 211603575U CN 201922424020 U CN201922424020 U CN 201922424020U CN 211603575 U CN211603575 U CN 211603575U
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light
dinner plate
light emitting
resistor
detection device
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李阳阳
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Hefei Midea Intelligent Technologies Co Ltd
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Hefei Midea Intelligent Technologies Co Ltd
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Abstract

The utility model provides an intelligence cupboard and dinner plate detection device thereof, wherein, the device includes: a light emitting component for emitting light to the dinner plate; and the light receiving component is matched with the light emitting component and generates a detection signal by sensing the light emitted by the light emitting component or the reflected light reflected by the dinner plate, wherein the detection signal is used for indicating whether the dinner plate is detected or not. From this, through with light emission subassembly matched with light receiving element, the reverberation of response through the dinner plate reflection is in order to generate detecting signal to according to detecting signal indication dinner plate state, thereby, the dinner plate state in the intelligent dining cabinet is judged to the accuracy, promotes user's use and experiences, simultaneously, need not additionally to add micro-gap switch, simple structure, the stable performance, it is with low costs, and easy installation.

Description

Intelligent dining cabinet and service plate detection device thereof
Technical Field
The utility model relates to a dining cabinet technical field especially relates to a dinner plate detection device and an intelligent dining cabinet.
Background
Along with the rapid development of lazy people's economy, unmanned dining room is also more and more, and at present, the unmanned dining cabinet of correlation technique is usually when the user manually input gets the meal code, and the acquiescence dinner plate has been taken away, perhaps detects the dinner plate through setting up micro-gap switch at each meal lattice bottom at unmanned dining cabinet and whether taken away.
However, the related art has problems that if the form of taking a meal code to take a meal is adopted, it cannot be determined whether a user has successfully taken a meal plate due to the adoption of a default mode, and if the form of a microswitch is adopted, problems of structure blockage, unstable signal, unattractive appearance and the like may exist, so that the related art cannot be widely applied.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent.
Therefore, the utility model discloses a first aim at provides a dinner plate detection device, can the accurate dinner plate state of judging in the intelligent dining cabinet, promotes user's use and experiences, simultaneously, need not additionally to add micro-gap switch, simple structure, the stable performance, it is with low costs, and easy installation.
A second object of the present invention is to provide an intelligent dining cabinet.
In order to achieve the above object, the utility model discloses a dinner plate detection device of intelligence cupboard that first aspect provided, include: a light emitting component for emitting light to the dinner plate; the light receiving assembly is matched with the light emitting assembly and generates a detection signal by sensing light rays emitted by the light emitting assembly or reflected light reflected by the dinner plate, wherein the detection signal is used for indicating whether the dinner plate is detected or not.
According to the utility model discloses a dinner plate detection device of intelligence cupboard is through light emission subassembly to dinner plate emission light to through the light that passes through response light emission subassembly transmission with light emission subassembly matched with light receiving assembly or through the reverberation of dinner plate reflection in order to generate the detected signal, wherein, the detected signal is used for instructing whether to detect the dinner plate. From this, the dinner plate state in the accurate judgement intelligence cupboard promotes user's use and experiences, simultaneously, need not additionally to add micro-gap switch, simple structure, the stable performance, and is with low costs, and easy installation.
Additionally, according to the utility model discloses above-mentioned dinner plate detection device of intelligent dining cabinet that provides can also have following additional technical characterstic:
in some examples, when the light receiving component generates the detection signal by sensing the light emitted by the light emitting component, the light emitting component and the light receiving component are disposed on two sides of the dinner plate, and the light emitting component and the light receiving component are disposed in a placement position relative to the dinner plate; when the light receiving assembly generates a detection signal by sensing reflected light reflected by the dinner plate, the light emitting assembly and the light receiving assembly are arranged on the same side of the dinner plate, and the arrangement positions of the light emitting assembly and the light receiving assembly are lower than the arrangement position of the dinner plate.
In some examples, the light emitting assembly includes a light emitting diode that emits the light and a first power source that powers the light emitting diode, and the light receiving assembly includes a light sensitive receiver tube that receives the light emitted by the light emitting assembly or reflected light reflected off the dish and a second power source that powers the light sensitive receiver tube.
In some examples, the light emitting diode is an infrared light emitting diode and the photosensitive receiving tube is an infrared receiving diode.
In some examples, the cathode of the light emitting diode is grounded, and the anode of the light emitting diode is connected to the first power supply through a first resistor.
In some examples, a first pole of the photosensitive receiver tube is grounded, and a second pole of the photosensitive receiver tube is connected to the second power supply through a second resistor.
In some examples, the light receiving assembly further comprises a detection circuit connected to the photosensitive receiving tube, wherein the detection circuit comprises: the circuit comprises a third resistor and a fourth resistor which are connected in series, wherein one end of the third resistor is connected with the second power supply, the other end of the third resistor is connected with one end of the fourth resistor and is provided with a first node, and the other end of the fourth resistor is grounded; and a comparator, wherein a first input end of the comparator is connected with the second pole of the photosensitive receiving tube, a second input end of the comparator is connected with the first node, and an output end of the comparator is used as an output end of the detection circuit to output the detection signal.
In some examples, the dinner plate detection device of the intelligent dining cabinet further comprises a reminding unit, wherein the reminding unit is connected with the output end of the detection circuit, the reminding unit comprises a fifth resistor, a sixth resistor and an indicator light, one end of the fifth resistor is connected with the second power supply, one end of the indicator light is connected with the other end of the fifth resistor, the other end of the indicator light is connected with the output end of the detection circuit, one end of the sixth resistor is connected with one end of the fifth resistor, and the other end of the sixth resistor is connected with the output end of the detection circuit.
In some examples, the meal tray detection device of the intelligent meal cabinet further comprises a connector, and the output end of the detection circuit communicates with an upper computer through the connector to send the detection signal to the upper computer.
In order to achieve the above object, the second aspect of the present invention provides an intelligent dining cabinet comprising the above mentioned dinner plate detection device.
According to the utility model discloses an intelligence cupboard adopts foretell intelligence cupboard's dinner plate detection device, can the accurate dinner plate state of judging in the intelligence cupboard, promotes user's use and experiences, simultaneously, need not additionally to add micro-gap switch, simple structure, the stable performance, it is with low costs, and easy installation.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic block diagram of a dinner plate detection device of an intelligent dining cabinet according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of an optical transmit assembly according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a light receiving module according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a dinner plate detection device of an intelligent dining cabinet according to an embodiment of the present invention;
fig. 5 is a block schematic diagram of an intelligent cabinet according to an embodiment of the utility model.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The following describes the intelligent cabinet and the dinner plate detection device thereof according to the embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 is a schematic block diagram of a dinner plate detection device of an intelligent dining cabinet according to the embodiment of the present invention.
As shown in fig. 1, the dinner plate detection device 100 of the intelligent dining cabinet comprises: a light emitting module 1 and a light receiving module 2 coupled to the light emitting module 1.
Wherein, the light emitting component 1 emits light to the dinner plate; the light receiving assembly 2 generates a detection signal by sensing the light emitted by the light emitting assembly 1 or the reflected light reflected by the dinner plate, wherein the detection signal is used for indicating whether the dinner plate is detected.
That is to say, dinner plate detection device 100 accessible control light emission subassembly 1 of intelligence cupboard is to dinner plate emission light to through the light with light emission subassembly 1 matched with light receiving component 2 response light emission subassembly 1's light or through the reverberation of dinner plate reflection with the generation detected signal, and then, whether detect the dinner plate according to detected signal instruction.
It should be noted that, in the utility model discloses an embodiment, if there is n check positions to be used for placing the dinner plate in the intelligence cupboard, then the dinner plate that corresponds n check is placed the position and need be set up n light emission component 1 of group and with light emission component 1 matched with light receiving component 2 to through light emission component 1 with light emission component 1 matched with light receiving component 2 detect respectively the dinner plate state among the dinner plate placement position of n check.
Further, as shown in fig. 1, when the light receiving module 2 generates the detection signal by sensing the light emitted from the light emitting module 1, the light emitting module 1 and the light receiving module 2 are disposed at two sides of the dish plate, and the light emitting module 1 and the light receiving module 2 are disposed at positions corresponding to the dish plate, and when the light receiving module 2 generates the detection signal by sensing the reflected light reflected from the dish plate, the light emitting module 1 and the light receiving module 2 are disposed at the same side of the dish plate, and the positions where the light emitting module 1 and the light receiving module 2 are disposed are lower than the positions where the dish plate is disposed.
In other words, when the light emitting module 1 and the light receiving module 2 are disposed on the same side of the dish, the detection signal is generated by the light receiving module 2 by sensing the reflected light reflected by the dish, and when the light emitting module 1 and the light receiving module 2 are disposed on both sides of the dish, the detection signal is generated by the light receiving module 2 by sensing the light emitted by the light emitting module 1.
It will be appreciated that the light emitting module 1 and the light receiving module 2 are disposed relative to the dish, that is, the light emitting module 1 and the light receiving module 2 are aligned, so that the light receiving module 2 senses the light emitted by the light emitting module 1.
Preferably, in order to improve the detection accuracy of the dinner plate, the light emitting component 1 and the light receiving component 2 are separately arranged on two sides of the dinner plate to avoid the dinner plate detection error caused by the problem of the arrangement angle between the light emitting component 1 and the light receiving component 2 arranged on the same side of the dinner plate, or two light receiving components 2 are simultaneously arranged, one is arranged on the same side with the light emitting component 1 to sense the reflected light reflected by the dinner plate, the other is arranged on the other side opposite to the light emitting component 1 to sense the light emitted by the light emitting component 1, namely when the light receiving component 2 on the same side senses the reflected light of the dinner plate and the light receiving component 2 on the other side does not sense the light of the light emitting component 1, the dinner plate is determined to be present, and when the light receiving component 2 on the same side does not sense the reflected light and the light receiving component 2 on the other side senses the light of the light, and determining whether the dinner plate exists or not, and judging whether the dinner plate exists or not according to the sensing results of the two light receiving assemblies 2, so that the dinner plate detection accuracy is further improved.
It should be further noted that, since the height of the dish is typically greater than or equal to 3cm, for accurate detection of the dish, the bottom of the dish is prevented from reflecting light and not being detected by positioning the light emitting and receiving elements 1 and 2 lower than the dish, for example, by fixing the light emitting and receiving elements 1 and 2 at a position greater than 3cm and >1cm (between the top and bottom of the dish).
Further, as shown in fig. 2, the light emitting module 1 includes a light emitting diode D1 for emitting light and a first power VCC1 for supplying power to the light emitting diode D1, and as shown in fig. 3, the light receiving module 2 includes a photosensitive receiving tube Q for receiving the light emitted from the light emitting module 1 or reflected light reflected by the dinner plate and a second power VCC2 for supplying power to the photosensitive receiving tube Q.
Alternatively, the light emitting diode D1 may be an infrared light emitting diode, and the photosensitive receiving tube Q may be an infrared receiving diode.
That is, the light emitted from the light emitting diode D1 and the light received by the photosensitive receiving tube Q may be infrared light.
Further, the cathode of the led D1 is grounded, the anode of the led D1 is connected to the first power source VCC1 through the first resistor R1, and the first pole of the photosensitive receiving tube Q is grounded, and the second pole of the photosensitive receiving tube Q is connected to the second power source VCC2 through the second resistor R2.
Specifically, in an embodiment of the present invention, after the first power VCC1 is divided by the first resistor R1, the led D1 for emitting light is powered to control the led D1 to emit light to the dish, and after the second power VCC2 is divided by the second resistor R2, the photosensitive receiving tube Q for receiving reflected light is powered to control the photosensitive receiving tube Q to sense the light emitted by the light emitting component 1 or the reflected light reflected by the dish to generate a detection signal, thereby realizing dish detection.
Further, as shown in fig. 4, the light receiving element 2 further includes a detection circuit 23, and the detection circuit 23 is connected to the photosensitive receiving tube Q.
As shown in fig. 4, the detection circuit 23 includes: a third resistor R3 and a fourth resistor R4 connected in series, wherein one end of the third resistor R3 is connected to a second power source VCC2, the other end of the third resistor R3 is connected to one end of the fourth resistor R4 and has a first node P, and the other end of the fourth resistor R4 is grounded; a comparator B having a first input terminal IN1(+) connected to the second pole of the photo-sensitive receiver Q, a second input terminal IN1(-) connected to the first node P, and an output terminal OUT1 as an output terminal of the detection circuit 23 for outputting the detection signal.
Specifically, the detection circuit 23 is connected to the first input terminal IN1(+) of the comparator B through the photosensitive receiving tube Q and the second resistor R2, and connected to the second input terminal IN1(-) of the comparator B through the third resistor R3 and the fourth resistor R4 connected IN series, so that the comparator B compares the inputs of the first input terminal IN1(+) and the second input terminal IN1(-) to output a detection signal to the output terminal OUT1 (i.e., the output terminal of the detection circuit 23) of the comparator B for indicating whether a dinner plate is detected.
Further, as shown in fig. 4, the dinner plate detection device 100 of the intelligent dining cabinet further includes a reminding unit 3, and the reminding unit 3 is connected to the output end of the detection circuit 23.
Wherein, as shown in fig. 4, the reminding unit 3 includes a fifth resistor R5, a sixth resistor R6 and an indicator light LED, one end of the fifth resistor R5 is connected with the second power VCC2, one end of the indicator light LED is connected with the other end of the fifth resistor R5, the other end of the indicator light LED is connected with the output end of the detection circuit 23, one end of the sixth resistor R6 is connected with one end of the fifth resistor R5, and the other end of the sixth resistor R6 is connected with the output end of the detection circuit 23.
Specifically, when the light receiving module 2 associated with the light emitting module 1 does not sense the reflected light reflected by the dish, the voltage at the first input terminal IN1(+) of the comparator B is 5V, at this time, the detection signal output by the output terminal of the comparator is high level, and the indicator light LED is not lit, indicating that there is a dish at the current placement position, and, when the light receiving module 2 associated with the light emitting module 1 senses the reflected light reflected by the dish, the voltage at the first input terminal IN1(+) of the comparator B gradually decreases until the first input terminal IN1(+) of the comparator B is smaller than the second input terminal IN1(-), at this time, the detection signal output by the output terminal of the comparator is low level, and the indicator light LED is lit, indicating that there is no dish at the current placement position.
Further, as shown in fig. 4, the dinner plate detection device 100 of the intelligent dining cabinet further comprises a connector 4, and the output end of the detection circuit 23 communicates with the upper computer through the connector 4 to send a detection signal to the upper computer.
That is to say, the dinner plate detection device 100 of intelligence cupboard outputs the signal accessible connector 4's of host computer and transmits, for example, if there is the dinner plate, then detection circuit 23's output passes through connector 4 and outputs high level detection signal to the host computer to and if there is not the dinner plate, then detection circuit 23 to the output passes through connector 4 and outputs low level detection signal to the host computer.
To sum up, according to the utility model discloses a dinner plate detection device of intelligence cupboard is through light emission subassembly to dinner plate emission light to through the reverberation through the dinner plate reflection with light emission subassembly matched with light receiving assembly through the response in order to generate detected signal, wherein, detected signal is used for instructing whether to detect the dinner plate. From this, the dinner plate state in the accurate judgement intelligence cupboard promotes user's use and experiences, simultaneously, need not additionally to add micro-gap switch, simple structure, the stable performance, and is with low costs, and easy installation.
Fig. 5 is a block schematic diagram of an intelligent cabinet according to an embodiment of the utility model. As shown in fig. 5, the intelligent cabinet 1000 includes the dinner plate detection apparatus 100 of the intelligent cabinet in the foregoing embodiment, and can implement a specific implementation manner corresponding to the dinner plate detection apparatus 100 of the intelligent cabinet one to one, which is not described herein again.
To sum up, according to the utility model provides an intelligence cupboard adopts the dinner plate detection device of above-mentioned intelligence cupboard, can the accurate dinner plate state of judging in the intelligence cupboard, promotes user's use and experiences, simultaneously, need not additionally to add micro-gap switch, simple structure, stable performance, with low costs, and easy installation.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. The utility model provides a dinner plate detection device of intelligence cupboard which characterized in that includes:
a light emitting component for emitting light to the dinner plate;
the light receiving assembly is matched with the light emitting assembly and generates a detection signal by sensing light rays emitted by the light emitting assembly or reflected light reflected by the dinner plate, wherein the detection signal is used for indicating whether the dinner plate is detected or not.
2. The dinner plate detection device of intelligent dining cabinet according to claim 1,
when the light receiving assembly generates a detection signal by sensing light rays emitted by the light emitting assembly, the light emitting assembly and the light receiving assembly are arranged on two sides of the dinner plate, and the light emitting assembly and the light receiving assembly are arranged at positions corresponding to the dinner plate;
when the light receiving assembly generates a detection signal by sensing reflected light reflected by the dinner plate, the light emitting assembly and the light receiving assembly are arranged on the same side of the dinner plate, and the arrangement positions of the light emitting assembly and the light receiving assembly are lower than the arrangement position of the dinner plate.
3. The meal tray detection device of the intelligent meal cabinet according to claim 1, wherein the light emitting assembly comprises a light emitting diode for emitting the light and a first power supply for supplying power to the light emitting diode, and the light receiving assembly comprises a photosensitive receiving tube for receiving the light emitted by the light emitting assembly or the reflected light reflected by the meal tray and a second power supply for supplying power to the photosensitive receiving tube.
4. The meal plate detection device of the intelligent meal cabinet according to claim 3, wherein the light emitting diode is an infrared light emitting diode, and the photosensitive receiving tube is an infrared receiving diode.
5. The meal tray detection device of the intelligent meal cabinet according to claim 3, wherein the cathode of the light emitting diode is grounded, and the anode of the light emitting diode is connected with the first power supply through a first resistor.
6. The meal tray detection device of the intelligent meal cabinet according to claim 3, wherein a first pole of the photosensitive receiving tube is grounded, and a second pole of the photosensitive receiving tube is connected with the second power supply through a second resistor.
7. The dinner plate detection device of intelligent dining cabinet according to claim 6, wherein said light receiving component further comprises a detection circuit, said detection circuit is connected with said photosensitive receiving tube, wherein said detection circuit comprises:
the circuit comprises a third resistor and a fourth resistor which are connected in series, wherein one end of the third resistor is connected with the second power supply, the other end of the third resistor is connected with one end of the fourth resistor and is provided with a first node, and the other end of the fourth resistor is grounded;
and a comparator, wherein a first input end of the comparator is connected with the second pole of the photosensitive receiving tube, a second input end of the comparator is connected with the first node, and an output end of the comparator is used as an output end of the detection circuit to output the detection signal.
8. The dinner plate detection device of the intelligent dining cabinet, according to claim 7, further comprising a reminding unit, wherein the reminding unit is connected with the output end of the detection circuit, wherein the reminding unit comprises a fifth resistor, a sixth resistor and an indicator light, one end of the fifth resistor is connected with the second power supply, one end of the indicator light is connected with the other end of the fifth resistor, the other end of the indicator light is connected with the output end of the detection circuit, one end of the sixth resistor is connected with one end of the fifth resistor, and the other end of the sixth resistor is connected with the output end of the detection circuit.
9. The dinner plate detection device of the intelligent dining cabinet, according to claim 7, further comprising a connector, wherein the output end of the detection circuit is communicated with an upper computer through the connector to send the detection signal to the upper computer.
10. An intelligent cabinet, characterized by comprising the dinner plate detection device of the intelligent cabinet according to any one of claims 1-9.
CN201922424020.2U 2019-12-27 2019-12-27 Intelligent dining cabinet and service plate detection device thereof Active CN211603575U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922424020.2U CN211603575U (en) 2019-12-27 2019-12-27 Intelligent dining cabinet and service plate detection device thereof

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Application Number Priority Date Filing Date Title
CN201922424020.2U CN211603575U (en) 2019-12-27 2019-12-27 Intelligent dining cabinet and service plate detection device thereof

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CN211603575U true CN211603575U (en) 2020-09-29

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