Heatable cup mat

Abstract

The present disclosure relates to the technical field of household articles, and discloses a heatable cup mat, comprising: a control chip circuit having a plurality of different pins; the power supply is connected with a power supply pin of the control chip circuit; the heating circuit is connected with a temperature control pin of the control chip circuit and is used for generating heat according to a control signal output by the control chip circuit; the temperature measurement circuit is connected with a temperature detection pin of the control chip circuit and is used for detecting the temperature of the cup and transmitting the temperature of the cup to the control chip circuit; the weighing circuit is connected with a weight detection pin of the control chip circuit and is used for detecting the weight of the cup and transmitting the weight of the cup to the control chip circuit; the control chip circuit, the power supply, the heating circuit, the heating circuit and the weighing circuit are all arranged on the cup mat body. The heating circuit can generate heat according to the control signal output by the control chip circuit, which means that a user can heat liquid in the cup by setting an expected temperature.

Description

Technical Field

[0001] This disclosure relates to the technical field of household products, such as a heatable coaster. Background Technology

[0002] With the advent of the smart era, traditional coasters can no longer meet the needs of modern consumers, especially in terms of regulating the temperature of liquids in cups. Specifically, coasters in this technology can only provide simple heat insulation and anti-slip functions, but cannot regulate the temperature of liquids in cups, thus failing to provide users with beverages at the appropriate temperature. Utility Model Content

[0003] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0004] This disclosure provides a heatable coaster, which includes:

[0005] The control chip circuit has multiple different pins;

[0006] The power supply is connected to the power supply pin of the control chip circuit.

[0007] The heating circuit is connected to the temperature control pin of the control chip circuit and is used to generate heat according to the control signal output by the control chip circuit.

[0008] The temperature sensing circuit is connected to the temperature detection pin of the control chip circuit to detect the temperature of the cup and transmit the temperature of the cup to the control chip circuit.

[0009] The weighing circuit is connected to the weight detection pin of the control chip circuit to detect the weight of the cup and transmit the weight of the cup to the control chip circuit.

[0010] The coaster body, control chip circuit, power supply, heating circuit, and weighing circuit are all located in the coaster body.

[0011] In some embodiments, the heating circuit includes a boost converter chip and a heating wire. The boost converter chip is connected to the temperature control pin and power supply pin of the control chip circuit, and the heating wire is connected to the voltage output pin of the boost converter chip.

[0012] In some embodiments, the temperature circuit includes a thermistor, a first voltage divider resistor, and a noise reduction capacitor;

[0013] The first end of the thermistor is connected to the power supply pin of the control chip circuit, and the second end of the thermistor is connected to the first end of the first voltage divider resistor, the first end of the noise reduction capacitor, and the temperature detection pin of the control chip circuit. The second ends of the first voltage divider resistor and the second end of the noise reduction capacitor are grounded.

[0014] In some embodiments, the weighing circuit includes a flexible thin-film pressure sensor and a second voltage divider resistor;

[0015] The first end of the flexible thin-film pressure sensor and the first end of the second voltage divider resistor are both connected to the weight detection pin of the control chip circuit. The second end of the flexible thin-film pressure sensor is connected to the power supply pin of the control chip circuit, and the second end of the second voltage divider resistor is grounded.

[0016] In some embodiments, the heatable coaster also includes a speaker circuit, which is connected to the voice output pin of the control chip circuit and is used to emit corresponding sounds according to the sound signals output by the control chip circuit.

[0017] In some embodiments, the speaker circuit includes an audio power amplifier chip and a speaker;

[0018] The audio power amplifier chip is connected to both the control chip circuit and the speaker. The audio power amplifier is used to control the speaker to emit corresponding sounds based on the sound signals output by the control chip circuit.

[0019] In some embodiments, the heated coaster also includes a microphone circuit connected to the voice input pin of the control chip circuit, for receiving user voice and converting the user voice into an audio signal before transmitting it to the control chip circuit.

[0020] In some embodiments, the microphone circuit includes a microphone and a π-type circuit. The microphone is connected to the voice input pin of the control chip circuit through the π-type circuit. The microphone is used to receive user voice and convert the user voice into an audio signal. The π-type circuit is used to sample the audio signal and transmit it to the control chip circuit.

[0021] In some embodiments, the heatable coaster further includes a status indicator circuit, which is connected to the status output pin of the control chip circuit.

[0022] In some embodiments, the status indication circuit includes two status indication branches, the indicator lights in the two status indication branches are of different colors, and the two status indication branches are respectively connected to two different status output pins of the control chip circuit.

[0023] The heatable coaster provided in this embodiment can achieve the following technical effects:

[0024] The heated coaster provided in this embodiment allows the heating circuit to generate heat based on a control signal output from the control chip circuit. This means that users can set a desired temperature to heat the liquid in the cup, ensuring the beverage is always kept at a suitable drinking temperature. The temperature sensing circuit monitors the temperature of the liquid in the cup in real time and feeds this information back to the control chip circuit. Thus, the control chip circuit can adjust the operating state of the heating circuit based on the difference between the current temperature and the set target temperature, achieving precise temperature control and avoiding overheating or underheating.

[0025] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0026] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0027] Figure 1 A schematic diagram of a heatable coaster in the related technology is shown;

[0028] Figure 2 This is a schematic diagram of a control chip circuit provided in an embodiment of this disclosure;

[0029] Figure 3 This is a schematic diagram of a heating circuit provided in an embodiment of this disclosure;

[0030] Figure 4 This is a schematic diagram of a temperature measuring circuit provided in an embodiment of this disclosure;

[0031] Figure 5 This is a schematic diagram of a weighing circuit provided in an embodiment of this disclosure;

[0032] Figure 6 This is a schematic diagram of a speaker circuit provided in an embodiment of this disclosure;

[0033] Figure 7 This is a schematic diagram of a microphone circuit provided in an embodiment of this disclosure;

[0034] Figure 8 This is a schematic diagram of a status indication circuit provided in an embodiment of this disclosure;

[0035] Figure 9 This is a schematic diagram of a button circuit provided in an embodiment of this disclosure;

[0036] Figure 10 This is a schematic diagram of an antenna circuit provided in an embodiment of this disclosure;

[0037] Figure 11 This is a schematic diagram of a power supply provided in an embodiment of this disclosure.

[0038] Figure label:

[0039] 1. Control chip circuit, 2. Power supply, 3. Heating circuit, 4. Temperature measuring circuit, 5. Weighing circuit;

[0040] 6. Coaster body, 7. Microphone circuit, 8. Status indicator circuit, 9. Crystal oscillator circuit;

[0041] 10. Button circuit, 11. Antenna circuit, 12. Speaker circuit. Detailed Implementation

[0042] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0043] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0044] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0045] Furthermore, the terms "setup," "connection," and "fixation" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances. In the embodiments of this disclosure, communication connections include electrical connections for transmitting electrical signals and optical fiber connections for transmitting optical signals. Without departing from the inventive concept of the embodiments of this disclosure, communication connections can be wired or wireless.

[0046] Unless otherwise stated, the term "multiple" means two or more.

[0047] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0048] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0049] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0050] This disclosure provides a heated coaster, combined with... Figure 1 As shown, the heatable coaster includes a control chip circuit 1, a power supply 2, a heating circuit 3, a temperature measuring circuit 4, a weighing circuit 5, and a coaster body 6. The control chip circuit 1 has multiple different pins. The power supply 2 is connected to the power supply pin of the control chip circuit 1. The heating circuit 3 is connected to the temperature control pin of the control chip circuit 1 and generates heat according to the control signal output by the control chip circuit 1. The temperature measuring circuit 4 is connected to the temperature detection pin of the control chip circuit 1 and detects the temperature of the cup, transmitting the temperature to the control chip circuit 1. The weighing circuit 5 is connected to the weight detection pin of the control chip circuit 1 and detects the weight of the cup, transmitting the weight to the control chip circuit 1. The control chip circuit 1, power supply 2, heating circuit 3, and weighing circuit 5 are all located on the coaster body 6.

[0051] The heated coaster provided in this embodiment allows the heating circuit 3 to generate heat based on the control signal output by the control chip circuit 1. This means that the user can set a desired temperature to heat the liquid in the cup, ensuring that the beverage is always kept at a suitable drinking temperature. The temperature sensing circuit 4 can monitor the temperature of the liquid in the cup in real time and feed the information back to the control chip circuit 1. In this way, the control chip circuit 1 can adjust the working state of the heating circuit according to the difference between the current temperature and the set target temperature, achieving precise temperature control and avoiding overheating or underheating.

[0052] like Figure 2 As shown, the control chip circuit 1 includes a control chip U1, which has multiple different pins. Pin DARC / PB11 serves as the right channel output of the digital-to-analog converter, used to drive the speaker. Pin DACL serves as the left channel output of the digital-to-analog converter, used to drive the speaker. Pins AVSS and DVSS serve as analog ground, used to isolate the analog and digital sections. This can be used to control external devices or receive data. Pin LDOIN / PB5 serves as the input of a low-dropout regulator, used to power the internal circuitry of the chip. Pin VBAT serves as a backup power input. Pin BTAVDD serves as the Bluetooth audio power pin. Pins PA0 to PA4, PB1, PB3, PB8, PB9, PB10, and PC3 to PC7 are all general-purpose I / O ports. Pins USBDP and USBDM are USB data positive and USB data negative, used for communication with USB devices. Pin BT_RF is the Bluetooth RF signal output, used to send and receive wireless signals. Pins BT_OSIC and BT_OSCO serve as the input and output corresponding to crystal oscillator 2, providing a precise clock signal to control chip U1. Control chip circuit 1 also includes a power supply section comprising capacitors C4, C5, C6, and C7. Capacitors C4 and C5 form a power decoupling network to remove high-frequency noise from the power lines. Capacitors C6 and C7 form another power decoupling network for finer power filtering. VCC represents the main power input, providing power to the entire circuit. VDDIO represents the power supply pin, used to power other components.

[0053] In some embodiments, combined with Figure 2 and Figure 3 As shown, the heating circuit 3 includes a boost converter chip U3 and a heating wire R12. The boost converter chip U3 is connected to the temperature control pin and power supply pin of the control chip U1 in the control chip circuit 11, and the heating wire R12 is connected to the voltage output pin of the boost converter chip U3. Pin PB9 of the control chip U1 can be used as the temperature control pin.

[0054] Heating wire R12 generates heat to heat the liquid in the cup via coaster body 6. Boost chip U3 is a DC-DC boost chip that boosts the voltage to 12V to supply power to heating wire R12. Resistors R16 and R17 set the output voltage of boost chip U3. Capacitor C15 filters the output power supply to reduce output ripple. Diode D3 is a freewheeling diode to prevent reverse leakage or breakdown. Inductor L1 provides energy conversion and boosting for the DC-DC boost process.

[0055] In the boost chip U3 of this embodiment, VIN represents the input voltage pin, used to receive the input voltage. It is typically connected to the positive terminal of the power supply; GND represents the ground pin, used to connect to the circuit's ground wire; SW represents the switch pin, used for the output of the internal switching circuit; FB represents the feedback pin, used to receive feedback signals from the output voltage to regulate its stability; EN represents the enable pin, used to control the chip's on and off states. When the EN pin is high, the chip operates; when the EN pin is low, the chip is off. NC represents an unconnected pin, typically indicating that the pin is not used in the circuit.

[0056] In some embodiments, combined with Figure 2 and Figure 4 As shown, the temperature measuring circuit 4 includes a thermistor NTC1, a first voltage divider resistor R13, and a noise reduction capacitor C14. The first terminal of the thermistor NTC1 is connected to the power supply pin of the control chip circuit 1. The second terminal of the thermistor NTC1 is connected to the first terminal of the first voltage divider resistor R13, the first terminal of the noise reduction capacitor C14, and the temperature detection pin of the control chip circuit 1. The second terminals of the first voltage divider resistor R13 and the second terminal of the noise reduction capacitor C14 are grounded. Pin PB10 of the control chip U1 can be used as the temperature detection pin. The thermistor NTC1 is used to detect changes in the cup wall temperature to calculate whether the current water temperature has been heated to a suitable level. The noise reduction capacitor C14 is used to support the stability of the ADC input, smooth the input signal, and reduce noise. The first voltage divider resistor R13 forms a voltage divider circuit with the thermistor NTC1, enabling the control chip U1 to detect temperature changes.

[0057] In some embodiments, combined with Figure 2 and Figure 5As shown, the weighing circuit 5 includes a flexible thin-film pressure sensor R15 and a second voltage divider resistor R14. The first terminal of the flexible thin-film pressure sensor R15 and the first terminal of the second voltage divider resistor R14 are both connected to the weight detection pin of the control chip circuit 1. The second terminal of the flexible thin-film pressure sensor R15 is connected to the power supply pin of the control chip circuit 1, and the second terminal of the second voltage divider resistor R14 is grounded. Pin PB8 of the control chip U1 can be used as the weight detection pin. The flexible thin-film pressure sensor R15 achieves high-sensitivity pressure detection by printing a flexible nanomaterial with strong adhesion, bending resistance, and high sensitivity onto a flexible material. The second voltage divider resistor R14 and the flexible thin-film pressure sensor R15 form a voltage divider circuit, enabling the control chip U1 to detect the current pressure state.

[0058] In some embodiments, combined with Figure 2 and Figure 6 As shown, the heated coaster also includes a speaker circuit 12, which is connected to the voice output pin of the control chip circuit 1 and is used to emit corresponding sounds according to the sound signals output by the control chip circuit 1.

[0059] In this embodiment, the speaker circuit 12 includes an audio power amplifier chip U2 and a speaker LS1. The audio power amplifier chip U2 is connected to both the control chip U1 and the speaker LS1. The audio power amplifier U2 is used to control the speaker LS1 to emit corresponding sounds based on the sound signals output by the control chip circuit 11. The voice output pin is connected to the DACR pin, and the audio power amplifier chip U2 is connected to the DACR pin.

[0060] In the audio power amplifier chip U2, pin EN is the switch control pin. When this pin is high, the audio amplifier starts working; when this pin is low, the audio amplifier stops working. Pin IN+ receives the positive half-cycle of the audio signal; when the audio signal is applied to this pin, it is amplified by the internal amplifier. Pin IN- receives the negative half-cycle of the audio signal; when the audio signal is applied to this pin, it is amplified by the internal amplifier. Pin GND is used for grounding. Pin VO2 is connected to the positive terminal SPK+ of speaker LS1, and pin VO1 is connected to the negative terminal SPK- of speaker LS1. Pin VDD is the power supply pin, used to connect to the main power input VCC. Pin EN is connected to the power supply pin VDDIO.

[0061] Optionally, the speaker circuit 12 also includes capacitors C12 and C13, which are filter capacitors for the power supply of the audio power amplifier chip U2 to suppress noise.

[0062] Optionally, the speaker circuit 12 also includes resistors R9 and R10, which are used to set the gain of the audio power amplifier chip U2.

[0063] Optionally, the speaker circuit 12 also includes a capacitor C11, which is the coupling capacitor for the audio input of the audio power amplifier chip U2.

[0064] Optionally, the speaker circuit 12 also includes a resistor R8, which is a pull-up resistor. Resistor R8 is used to provide a stable voltage to pin EN.

[0065] Optionally, the speaker circuit 12 also includes a capacitor C10, which is used to suppress the switching noise of the audio power amplifier chip U2.

[0066] Optionally, the speaker circuit 12 also includes a resistor R11, which is used to isolate and distinguish between digital ground and analog ground.

[0067] In some embodiments, the heatable coaster also includes a microphone circuit 7, which is connected to the voice input pin of the control chip circuit 1, for receiving user voice and converting the user voice into an audio signal before transmitting it to the control chip circuit 1.

[0068] In some embodiments, combined with Figure 2 and Figure 7 As shown, microphone circuit 7 includes microphone J4 and a π-type circuit. Microphone J4 is connected to the voice input pin of control chip U1 through the π-type circuit. Microphone J4 is used to receive user voice and convert it into an audio signal. The π-type circuit is used to sample the audio signal and transmit it to control chip U1. Here, pins PC6 and PC7 are used as voice input pins, and the π-type circuit is connected to pins PC6 and PC7.

[0069] In this embodiment, resistor R5, capacitor C1, resistor R6, capacitor C2 and capacitor C3 form a π-type circuit, and resistor R7 is used to separate the analog ground of the microphone circuit 7 input signal from other digital grounds to reduce interference.

[0070] In some embodiments, the heatable coaster further includes a status indicator circuit 8, which is connected to the status output pin of the control chip circuit 1.

[0071] In some embodiments, combined with Figure 2 and Figure 8As shown, the status indicator circuit 8 includes two status indicator branches, with different colored indicator lights in each branch. The indicator lights in the two branches are D9 and D10, where D9 is red and D10 is green. The two status indicator branches are connected to two different status output pins of the control chip U1. Specifically, pins PA3 and PA4 serve as status output pins, with indicator D9 connected to pin PA3 and indicator D10 connected to pin PA4.

[0072] Optionally, the status indicator circuit 8 also includes resistors R3 and R4. Indicator D9 is connected to the power supply pin VDDIO through resistor R3, and indicator D10 is connected to the power supply pin VDDIO through resistor R4. Resistor R3 is used to limit the current flowing through indicator D9, and resistor R4 is used to limit the current flowing through indicator D10.

[0073] In some embodiments, combined with Figure 1 As shown, the heated coaster also includes a crystal oscillator circuit 9. The crystal oscillator circuit 9 is used to provide a stable frequency signal to the control chip U1.

[0074] In some embodiments, the heatable coaster also includes a button circuit, wherein the button circuit 10 is connected to the button drive pin of the control chip circuit 11.

[0075] In some embodiments, combined with Figure 2 and Figure 9 As shown, the button circuit 10 includes multiple buttons with different functions, each connected to a different button drive pin of the control chip U1. The buttons with different functions are button SW1 and button SW2; button SW1 is the set button, and button SW2 is the stop button. Pins PC4 and PC5 are button drive pins; button SW1 is connected to pin PC4, and button SW2 is connected to pin PC5.

[0076] In some embodiments, combined with Figure 2 and Figure 10 As shown, the heated coaster also includes an antenna circuit 11, which is connected to the antenna drive pin of the control chip U1.

[0077] In this embodiment of the disclosure, the antenna circuit 11 includes an antenna ANT, an inductor L1, an inductor L2 and a capacitor C9. The pin BT_RF is the antenna driving pin, and the antenna ANT is connected to the pin BT_RF through the capacitor C9.

[0078] In some embodiments, combined with Figure 2 and Figure 11As shown, the heated coaster also includes a power supply 2. Power supply 2 includes a DC socket, one path of which is connected to the audio power amplifier chip U2 to provide power voltage for driving the speaker LS1 to produce sound. Another path of the audio power amplifier chip U2 is connected to the control chip U1 to provide operating voltage. The DC socket can also provide power to other components via the audio power amplifier chip U2.

[0079] Optionally, power supply 2 also includes capacitor C8, which is used for input power filtering.

[0080] In this embodiment, the socket DC power supply is 5V. One path of the socket DC power supply is connected to the audio power amplifier chip U2 to provide power voltage for driving the speaker LS1 to emit sound. Another path of the socket DC power supply is connected to the control chip U1 to provide operating voltage. The control chip U1 outputs a 3.3V output through the VCCIO pin to resistors R3 and R4, thereby providing power to indicator lights D9 and D10. A 3.3V output is connected to resistor R8 to provide a pull-up voltage. The control chip U1 outputs a 3.3V output through the VCCIO pin to the thermistor NTC1 to provide a detection voltage, another 3.3V output is connected to the second voltage divider resistor R14 to provide a detection voltage, and a third 3.3V output is connected to the VIN pin of the boost chip U3 as the input voltage.

[0081] In this embodiment, the crystal oscillator generates a 24MHz crystal oscillator signal, which provides a stable operating frequency to the internal clock of the control chip U1 through the XOSIC and XOSOC pins.

[0082] The following explains the principles of speech recognition:

[0083] Step 1: The lit state of indicator light D9 indicates that the current sleep mode needs to be woken up first. Say "Xiao Zhi Xiao Zhi" to the approximate location of microphone J4. After microphone J4 receives the analog sound signal, it inputs the analog signal to control chip U1 through the sampling circuit composed of resistor R6, resistor R5, capacitor C1, capacitor C2, and capacitor C3. The control chip U1 uses a DAC module to convert the analog signal into a digital signal, and then organizes the digital signal into corresponding data. The content is recognized by the voice recognition algorithm. If the wake-up word "Xiao Zhi Xiao Zhi" is recognized, indicator light D9 will turn off and indicator light D10 will light up, indicating that the command word can be recognized at this time. The PA2 pin of the control chip U1 outputs a high level to the EN pin of the audio power amplifier chip U2, enabling the audio signal amplification function; the DAR / PB11 pin of the control chip U1 outputs a digital audio signal to the PB8 pin of the audio power amplifier chip U2DE. After the audio power amplifier chip U2 amplifies the audio signal through its two internally integrated operational amplifiers, the amplified audio signal is output to the speaker LS1 through the VO2 and VO1 pins of the audio power amplifier chip U2. The speaker LS1 vibrates and broadcasts the sound "I am here".

[0084] Step 2: Say "Turn on constant temperature function" to the approximate location of microphone J4, and have microphone J4 process the same way to recognize the content of the command.

[0085] Step 3: After the control chip U1 recognizes the "Turn on constant temperature function" command, it queries the information stored in the internal storage of the control chip U1, amplifies the audio signal through the audio power amplifier chip U2, and announces "Turn on".

[0086] The following explains the principle behind identifying the water level in a cup and reminding the user to drink more water:

[0087] Step 1: When the internal memory of the control chip U1 has not recorded any cup weight information during its initial power-on state, the speaker LS1 connected to the audio power amplifier chip U2 announces, "When no cup weight information has been recorded, please place the empty cup on the coaster body 6 and state the recorded cup weight."

[0088] Step 2: When the user places an empty cup on the coaster body 6 and says "record the weight of the cup", the signal is transmitted to the control chip U1 through the microphone J4. After the control chip U1 recognizes the signal, it reads the voltage signal of the second voltage divider resistor R14 and the flexible thin film pressure sensor R15 through the pin PB8. The ADC function of the pin PB8 is used to convert the signal into corresponding data to determine whether an empty cup has been placed.

[0089] Step 3: When an empty cup is detected, the control chip U1 sends data to the audio power amplifier chip U2 to drive the speaker LS1 to announce "No cup detected, please place an empty cup". If no empty cup is placed within 30 seconds, it will announce "Exit recording cup weight". At this time, you need to say "Record cup weight" again to restart the corresponding function.

[0090] Step 4: When an empty cup is detected, the control chip U1 records the corresponding weight information using the ADC function of pin PB8 and saves it to the internal memory of the control chip U1. After the recording and saving are complete, it will announce "Cup weight recorded" to remind the user.

[0091] Step 5: When the user interacts with the system via voice to enable the daily water intake reminder function and sets a daily refresh time (e.g., 7:00 AM), each time a cup is filled with water and placed on the coaster, the flexible membrane pressure sensor R15 reads the corresponding water level in the cup and then announces the remaining water intake for the day via voice. If no cup is placed on the coaster for more than one hour, the user is reminded to drink more water.

[0092] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A heatable coaster, characterized in that, include: The control chip circuit has multiple different pins; The power supply is connected to the power supply pin of the control chip circuit. The heating circuit is connected to the temperature control pin of the control chip circuit and is used to generate heat according to the control signal output by the control chip circuit. The temperature sensing circuit is connected to the temperature detection pin of the control chip circuit to detect the temperature of the cup and transmit the temperature of the cup to the control chip circuit. The weighing circuit is connected to the weight detection pin of the control chip circuit to detect the weight of the cup and transmit the weight of the cup to the control chip circuit. The coaster body, control chip circuit, power supply, heating circuit, and weighing circuit are all located in the coaster body.

2. The heatable coaster according to claim 1, characterized in that, The heating circuit includes a boost converter chip and a heating wire. The boost converter chip is connected to the temperature control pin and power supply pin of the control chip circuit, and the heating wire is connected to the voltage output pin of the boost converter chip.

3. The heatable coaster according to claim 1, characterized in that, The temperature measuring circuit includes a thermistor, a first voltage divider resistor, and a noise reduction capacitor; The first end of the thermistor is connected to the power supply pin of the control chip circuit, and the second end of the thermistor is connected to the first end of the first voltage divider resistor, the first end of the noise reduction capacitor, and the temperature detection pin of the control chip circuit. The second ends of the first voltage divider resistor and the second end of the noise reduction capacitor are grounded.

4. The heatable coaster according to claim 1, characterized in that, The weighing circuit includes a flexible thin-film pressure sensor and a second voltage divider resistor; The first end of the flexible thin-film pressure sensor and the first end of the second voltage divider resistor are both connected to the weight detection pin of the control chip circuit. The second end of the flexible thin-film pressure sensor is connected to the power supply pin of the control chip circuit, and the second end of the second voltage divider resistor is grounded.

5. The heatable coaster according to any one of claims 1 to 4, characterized in that, It also includes a speaker circuit, which is connected to the voice output pin of the control chip circuit to emit corresponding sounds based on the sound signals output by the control chip circuit.

6. The heatable coaster according to claim 5, characterized in that, The speaker circuit includes an audio power amplifier chip and a speaker; The audio power amplifier chip is connected to both the control chip circuit and the speaker. The audio power amplifier is used to control the speaker to emit corresponding sounds based on the sound signals output by the control chip circuit.

7. The heatable coaster according to any one of claims 1 to 4, characterized in that, It also includes a microphone circuit, which is connected to the voice input pin of the control chip circuit to receive user voice and convert the user voice into an audio signal before transmitting it to the control chip circuit.

8. The heatable coaster according to claim 7, characterized in that, The microphone circuit includes a microphone and a π-type circuit. The microphone is connected to the voice input pin of the control chip circuit through the π-type circuit. The microphone is used to receive user voice and convert the user voice into an audio signal. The π-type circuit is used to sample the audio signal and transmit it to the control chip circuit.

9. The heatable coaster according to any one of claims 1 to 4, characterized in that, It also includes a status indicator circuit, which is connected to the status output pin of the control chip circuit.

10. The heatable coaster according to claim 9, characterized in that, The status indication circuit includes two status indication branches, with different colored indicator lights in the two branches. The two status indication branches are respectively connected to two different status output pins of the control chip circuit.

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