CN114279589A - Temperature detection method for water storage device - Google Patents
Temperature detection method for water storage device Download PDFInfo
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- CN114279589A CN114279589A CN202111649338.6A CN202111649338A CN114279589A CN 114279589 A CN114279589 A CN 114279589A CN 202111649338 A CN202111649338 A CN 202111649338A CN 114279589 A CN114279589 A CN 114279589A
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Abstract
In order to improve the temperature regulation control capability of the intelligent water storage device on liquid contained in the intelligent water storage device, the invention provides a temperature detection method of the water storage device, which is based on the intelligent water storage device with a heat dissipation unit and comprises the following steps: obtaining a signal indicative of a user desired temperature; acquiring a first temperature of liquid contained in the current water storage device by using a first temperature detection unit; obtaining a second temperature at the heat dissipation unit by using a second temperature detection unit; heating or cooling the liquid contained in the water storage device according to a signal representing the temperature expected by a user; and acquiring a third temperature of the liquid contained in the water storage device by using the third temperature detection unit, acquiring a fourth temperature at the heat dissipation unit by using the fourth temperature detection unit, and acquiring final temperature information according to the first temperature, the second temperature, the third temperature and the fourth temperature. The invention can accurately estimate the time required by the intelligent water storage device for adjusting the temperature to the expected temperature according to the temperature of the liquid in the water storage device and the temperature of the heat dissipation holes.
Description
Technical Field
The invention relates to the technical field of temperature detection, in particular to a temperature detection method for a water storage device.
Background
With the increasing requirements of people on living quality, intelligent water cups are in the spotlight. The intelligent water cup in the prior art mostly provides the function of prompting the water intake of a user, and the adjustment of the temperature of water in the water cup still mainly depends on the mechanical structure of the water cup, such as the sealing property among components, the heat and cold resistance of the materials of the components, the heat dissipation control of air holes and the like. However, although these structures can maintain the water temperature at a constant temperature for a long time or reduce the temperature as quickly as possible, they cannot be controlled accurately or adjusted.
Through retrieval, some temperature adjusting mechanisms have been designed for the existing intelligent water cups. For example, the chinese patent application with application number CN201310281539.4 discloses a temperature adjustable cup, which comprises a cup handle, an inner cup body and an outer cup body, wherein the inner cup body is installed in the outer cup body, the cup handle is installed outside the outer cup body, the temperature adjustable cup further comprises a control panel, a temperature sensor, a heating block, a controller, a power supply and a fan, the control panel is arranged on the outer cup body, the control panel is provided with a display screen, the temperature sensor is installed on the inner cup body, the heating block, the controller, the power supply and the fan are arranged at the bottom of the outer cup body, and the power supply is respectively connected with the control panel, the temperature sensor, the heating block and the fan through the controller. The water temperature measuring cup has the advantages that the water temperature in the cup is measured through the temperature sensor, the result is reflected on the display screen, people set the temperature through the control panel according to needs, the heating block and the fan complete corresponding action processes through the controller, heating or cooling of water is achieved, and people can drink the water conveniently.
However, these temperature control functions cannot meet the requirement of a user for adjusting the temperature at will, and the manual (compared with the case of automatically controlling heating or cooling a certain temperature through a program) adjustment unit may have reduced sensitivity in the case of long-term use, so that the temperature control signal provided by the user to the smart cup may deviate, which may cause the user to lose confidence, and seriously affect the popularization and expected use effect of the smart cup.
In addition, most of the existing temperature detection methods for intelligent water cups directly utilize temperature sensors, and the detection mode of directly utilizing the temperature sensors in intelligent water cups with temperature regulation cannot accurately reflect the temperature of liquid contained in the cups, so that the control of when the intelligent water cups with temperature regulation stop heating or cooling becomes inaccurate.
Disclosure of Invention
In order to improve the temperature regulation control capability of the intelligent water storage device on liquid contained in the intelligent water storage device, the invention provides a temperature detection method of the water storage device, which is based on the intelligent water storage device with a heat dissipation unit and comprises the following steps:
(1) obtaining a signal of a user desired temperature;
(2) acquiring a first temperature of liquid contained in the current water storage device by using a first temperature detection unit;
(3) obtaining a second temperature at the heat dissipation unit by using a second temperature detection unit;
(4) heating or cooling the liquid contained in the water storage device according to a signal of the temperature expected by a user;
(5) and acquiring a third temperature of the liquid contained in the water storage device by using the third temperature detection unit, acquiring a fourth temperature at the heat dissipation unit by using the fourth temperature detection unit, and acquiring final temperature information according to the first temperature, the second temperature, the third temperature and the fourth temperature.
Further, the first temperature detection unit, the second temperature detection unit, the third temperature detection unit and the fourth temperature detection unit all comprise temperature sensors;
the temperature sensor comprises a temperature sensor chip, a triode and a filtering component, wherein the temperature sensor chip is electrically connected with the filtering component and the triode in sequence through leads;
the temperature sensor chip is used for supplying power to the triode and receiving a voltage signal sent by the triode;
the triode is used for converting the induced temperature signal into a voltage signal and transmitting the voltage signal to the temperature sensor chip through the filtering component;
the filtering component is used for filtering the voltage signal sent by the triode and then sending the voltage signal to the temperature sensor chip;
the temperature sensor chip comprises a first switched capacitor circuit, a second switched capacitor circuit, a third switched capacitor circuit, a sampling capacitor, a first switch and an integrating amplifier;
the first switch capacitor circuit is connected with the first end of the sampling capacitor and is also connected with the filtering component;
the second switch capacitor circuit is connected with the first end of the sampling capacitor and is also connected with the filtering component;
the third switched capacitor circuit is connected with the first end of the sampling capacitor and is also connected with the filtering component;
and the second end of the sampling capacitor is grounded through a first switch, and the second end of the sampling capacitor is also connected with the integrating amplifier.
Further, intelligence water storage device still includes:
the human-computer interaction interface is used for receiving a touch action representing the temperature expected by a user and generating a temperature-adjusting electric signal corresponding to the action;
the heating unit is used for heating the liquid contained in the water storage device;
and the stirring unit is used for stirring the liquid contained in the water storage device.
Further, but temperature regulation intelligence water storage device still includes: and the control unit is used for generating a control signal for the heating unit or the stirring unit according to the temperature adjusting electric signal.
Further, the heating unit includes:
the digital-to-analog conversion unit is used for generating a heating current signal according to the control signal;
and the heating rod is used for heating according to the heating current signal.
Further, the agitating unit includes:
the digital-to-analog conversion unit is used for generating an agitation current signal according to the control signal;
and the stirring motor is used for stirring the liquid contained in the water storage device according to the stirring current signal.
Further, the heat dissipating unit includes:
at least one heat dissipation hole for dissipating heat in the water storage device;
the baffle is matched with the heat dissipation holes and used for controlling the opening and closing sizes of the heat dissipation holes;
and the baffle driving motor is used for driving the opening and closing size of the baffle according to the rotating speed of the stirring motor.
Further, the step (5) includes:
(51) after the heating unit is started, a third temperature of the liquid contained in the water storage device is obtained by using a third temperature detection unit at a time interval V1 from a first time T1, and a heating electric signal at the corresponding time is obtained at the same time;
(52) obtaining a fourth temperature at the heat radiating unit using the fourth temperature detecting unit a plurality of times at a time interval V1 from a first time T1 when the agitating unit is activated, and simultaneously obtaining an agitating electric signal at a corresponding time;
(53) correspondingly subtracting the third temperature and the fourth temperature obtained at the same time to obtain a temperature difference;
(54) establishing a fitting functional relationship between each moment and the temperature difference;
(55) and predicting the time required for reaching the expected temperature according to the fitted functional relation.
The invention has the beneficial effects that: the time required by the intelligent water storage device to adjust the temperature to the expected temperature can be accurately estimated according to the temperature of liquid in the water storage device and the temperature of the heat dissipation holes, meanwhile, the intelligent water storage device can sensitively receive temperature information expected to be adjusted by a user according to the touch control of the user, and is not affected by the problem that the temperature of common control devices such as knobs is inaccurate along with the increase of the service time; in addition, temperature information expected by a user can be accurately received, so that the heating and/or cooling unit of the water storage device can accurately adjust the temperature of liquid contained in the water storage device; finally, the intelligent water storage device can also rapidly cool the liquid when the temperature of the liquid contained in the water storage device exceeds the expected temperature, does not need a user to wait for a long time, and overcomes the defect that the traditional intelligent water storage device which generally focuses on heating the liquid and cannot effectively cool the liquid in the prior art.
Drawings
Fig. 1 shows a structural diagram of a temperature-adjustable intelligent water storage apparatus according to the present invention.
Fig. 2 shows a flow chart of a water storage device temperature detection method according to the present invention.
Fig. 3 shows a circuit diagram of a human-machine interaction interface according to the invention.
Fig. 4 is a diagram showing an internal wiring structure of the temperature sensor according to the present invention.
Detailed Description
As shown in fig. 1, according to an embodiment of the present invention, a temperature-adjustable intelligent water storage apparatus includes: the device comprises a human-computer interaction interface, at least one temperature sensor, a heating unit and an agitation unit. The man-machine interaction interface is used for receiving a touch action of a user expecting temperature and generating a temperature adjusting electric signal corresponding to the action; the temperature sensor is used for detecting the temperature of liquid contained in the water storage device; the heating unit is used for heating the liquid contained in the water storage device; the stirring unit is used for stirring the liquid contained in the water storage device.
As shown in fig. 4, a diagram of an internal circuit structure of the temperature sensor in this embodiment is shown, where the temperature sensor includes a temperature sensor chip, a transistor, and a filter assembly, and the temperature sensor chip is electrically connected to the filter assembly and the transistor in sequence through leads.
The temperature sensor chip is used for supplying power to the triode and detecting a voltage signal from the triode.
The triode is used for converting the induced temperature signal into a voltage signal and transmitting the voltage signal to the temperature sensor chip through the filtering component.
And the filtering component is used for filtering the voltage signal sent by the triode and then sending the voltage signal to the temperature sensor chip.
The temperature sensor chip comprises a first switched capacitor circuit, a second switched capacitor circuit, a third switched capacitor circuit, a sampling capacitor, a first switch and an integrating amplifier.
The first switch capacitor circuit is connected with the first end of the sampling capacitor, and the first switch capacitor circuit is further connected with the filtering component.
The second switch capacitor circuit is connected with the first end of the sampling capacitor, and the second switch capacitor circuit is further connected with the filtering component.
And the third switched capacitor circuit is connected with the first end of the sampling capacitor and is also connected with the filtering component.
And the second end of the sampling capacitor is grounded through a first switch, and the second end of the sampling capacitor is also connected with the integrating amplifier.
According to some preferred embodiments of the present invention, the temperature adjustable intelligent water storage device further comprises a control unit for generating a control signal to the heating unit or the stirring unit according to the temperature adjusting electric signal. According to a preferred embodiment of the invention, the control unit adopts an MSP430F430 singlechip. Of course, it should be clear to those skilled in the art that other types of single-chip microcomputers, ARM processors, CPLDs, etc. can also be used as the control unit. The specific form of the circuit connection is not described in detail here. Preferably, the control signal output by the control unit to the heating unit and/or the agitating unit is a digital signal. The advantages of avoiding the radiation generated by analog signals and improving the anti-interference capability of control signals are achieved, so that the accurate receiving and transmitting and correct processing of the control signals can be ensured on the occasions with complex electromagnetic environments.
As shown in fig. 2, a flow chart of the temperature detection method of the present invention is shown, which is preferably based on the above-mentioned intelligent water storage device and comprises the following steps:
(1) a signal of the temperature desired by the user is obtained.
(2) A first temperature of the liquid contained in the water storage device is obtained currently by the first temperature detection unit.
(3) And obtaining a second temperature at the heat dissipation unit by using a second temperature detection unit.
(4) And heating or cooling the liquid contained in the water storage device according to the signal of the temperature expected by the user.
(5) And acquiring a third temperature of the liquid contained in the water storage device by using the third temperature detection unit, acquiring a fourth temperature at the heat dissipation unit by using the fourth temperature detection unit, and acquiring final temperature information according to the first temperature, the second temperature, the third temperature and the fourth temperature.
According to a preferred embodiment of the present invention, the step (5) includes:
(51) after the heating unit is started, a third temperature of the liquid contained in the water storage device is obtained by the third temperature detection unit at a time interval V1 from the first time T1, and a heating electric signal at the corresponding time is obtained at the same time.
(52) When the agitating unit is activated, a fourth temperature at the heat radiating unit is obtained using the fourth temperature detecting unit a plurality of times at a time interval V1 from the first timing T1, and an agitating electric signal at a corresponding timing is obtained at the same time.
(53) And correspondingly subtracting the third temperature and the fourth temperature obtained at the same time to obtain the temperature difference.
(54) And establishing a fitting functional relation between each moment and the temperature difference.
(55) And predicting the time required for reaching the expected temperature according to the fitted functional relation.
According to the present invention, the first temperature detection unit, the second temperature detection unit, the third temperature detection unit and the fourth temperature detection unit each include the temperature sensor; the control unit is connected with the temperature sensor signal conditioning circuit.
In the present invention, the heating unit includes: a first digital-to-analog conversion unit and at least one heating rod. The first digital-to-analog conversion unit is preferably electrically coupled to the at least one heating rod.
The first digital-to-analog conversion unit here comprises, in addition to the digital-to-analog converter, a signal driving unit that generates an electrical signal for driving the heating rod to heat based on the analog electrical signal obtained by the first digital-to-analog converter. The first digital-to-analog converter is used for generating a heating current signal according to the control signal; the driving unit comprises a current amplifying device and/or a voltage amplifying device, and is used for generating a current/voltage signal which can be directly applied to the at least one heating rod according to the heating current signal from the control unit, so that the heating rod heats the liquid contained in the water storage device.
In the invention, the heating rods are distributed on the bottom and/or the side wall of the intelligent water storage device, and preferably have a geometric shape such as a circle, an ellipse, a regular polygon and the like.
According to an embodiment of the present invention, the agitating unit includes: a second digital-to-analog conversion unit and at least one agitation motor. The second digital-to-analog conversion unit is used for generating an agitation current signal according to the control signal; and the at least one stirring motor is used for stirring the liquid contained in the water storage device according to the stirring current signal.
According to some preferred embodiments of the present invention, the second digital-to-analog converting unit herein comprises, in addition to the digital-to-analog converter, a signal driving unit that generates an agitating electric signal for driving the agitating motor based on the analog electric signal obtained by the second digital-to-analog converter. The stirring motor is provided with a sheet-like object such as fan blades and can rotate along with the control of a stirring electric signal applied to the stirring motor, so that the liquid in the water storage device can be quickly radiated.
According to the preferred embodiment of the invention, the temperature-adjustable intelligent water storage device further comprises a heat dissipation unit for dissipating heat in the water storage device. The heat dissipation unit includes: the heat dissipation device comprises at least one heat dissipation hole, a baffle matched with the heat dissipation hole and a baffle driving motor matched with the number of the baffles. The at least one heat dissipation hole is used for dissipating heat in the water storage device; the baffle matched with the heat dissipation holes is used for controlling the opening and closing sizes of the heat dissipation holes; the baffle driving motor is used for driving the opening and closing size of the baffle according to the rotating speed of the stirring motor.
The "adaptation" referred to herein in the present invention may be one-to-one, or may correspond to other quantity ratios, for example: one baffle driving motor can correspondingly control the opening and closing sizes of the plurality of baffles.
Therefore, when the barrier is fully opened by the driving of the barrier driving motor, the temperature is most rapidly reduced; otherwise, the temperature decreases slowly.
As shown in fig. 3, the circuit diagram of the man-machine interface in the present invention includes a plurality of interactive interface units, each of which forms an array. Wherein the interactive interface units each include: the pressure sensor comprises a common electrode 1, a pressure sensor module 2, a light emitting diode 3, an output end 4, a bidirectional data bus B, a reset control end R, thyristors T1-T6, a triode T and a capacitor F1. The drain electrode of the thyristor T1 is connected with the light-emitting diode 3, the source electrode is connected with the bidirectional data bus B, and the grid electrode is connected with the clock end; the gate of the thyristor T2 is connected with the reset control end R, the source is connected with the control end (enabling end) of the pressure sensor module 2, and the drain is connected with the source of the thyristor T5; the grid electrode of the thyristor T3 is connected with the bidirectional data bus B, the source electrode is connected with the emitter electrode of the triode T and the drain electrode of the thyristor T4, and the drain electrode is connected with the grid electrode of the thyristor T5; the gate of the thyristor T4 is connected with the drain of the thyristor T2, the drain is connected with the control end of the pressure sensor module, and the source is connected with the source of the thyristor T3; the collector of the triode T is connected with one end of the capacitor F1, and the base of the triode T is connected with the output end of the pressure sensor module 2; the drain of the thyristor T5 is connected to the source of the thyristor T6, the gate of the thyristor T6 is connected to the clock signal CLK, the drain is connected to one input end of the AND gate, the other end of the capacitor F1 is connected to the other input end of the AND gate, and the output end of the AND gate is the output end 4. Wherein, the triode is of an N type.
According to the preferred embodiment of the invention, the plurality of interactive interface units form an array, the array is in the shape of a strip, a square or other shapes, and the area of the array can be touched or pressed by a user so as to receive the temperature regulation operation from the user. For example, when the shape is a long strip, the output ends of the array composed of the plurality of interactive interface units are given different weights, and finally the outputs of the rows or columns in the array are added through the adder, and the larger the sum is, the longer the sliding distance of the user is, the larger the temperature adjustment amplitude is.
In addition, preferably, the sliding direction of the user touching the human-computer interaction interface can be determined according to the sequence of the acquisition time of the output values of each row or each column in the array. One of the directions may be defined as a temperature increase and the other direction as a temperature decrease.
The above examples are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (6)
1. A temperature detection method for a water storage device is characterized in that the detection method is based on an intelligent water storage device with a heat dissipation unit and comprises the following steps:
(1) obtaining a signal of a user desired temperature;
(2) acquiring a first temperature of liquid contained in the current water storage device by using a first temperature detection unit;
(3) obtaining a second temperature at the heat dissipation unit by using a second temperature detection unit;
(4) heating or cooling the liquid contained in the water storage device according to a signal of the temperature expected by a user;
(5) acquiring a third temperature of liquid contained in the water storage device by using a third temperature detection unit, acquiring a fourth temperature at the heat dissipation unit by using a fourth temperature detection unit, and acquiring final temperature information according to the first temperature, the second temperature, the third temperature and the fourth temperature;
the intelligent water storage device further comprises:
the man-machine interaction interface is used for receiving a touch action of a user expecting temperature and generating a temperature-adjusting electric signal corresponding to the action;
the heating unit is used for heating the liquid contained in the water storage device;
the stirring unit is used for stirring the liquid contained in the water storage device and dissipating heat;
the man-machine interaction interface comprises a plurality of interaction interface units, and each interaction interface unit forms an array; wherein the interactive interface units each include: the device comprises a common electrode, a pressure sensor module, a light emitting diode, an output end, a bidirectional data bus, a reset control end, a first thyristor, a second thyristor, a third thyristor, a fourth thyristor, a fifth thyristor, a sixth thyristor, a triode and a capacitor, wherein the cathode of the first thyristor is connected with the light emitting diode, the anode of the first thyristor is connected with the bidirectional data bus, and the control electrode of the first thyristor is connected with a clock end; the control electrode of the second thyristor is connected with the reset control end, the anode of the second thyristor is connected with the control end of the pressure sensor module, and the cathode of the second thyristor is connected with the control electrode of the fifth thyristor; the control electrode of the third thyristor is connected with the bidirectional data bus, the anode of the third thyristor is connected with the emitting electrode of the triode and the cathode of the fourth thyristor, and the cathode of the third thyristor is connected with the cathode of the sixth thyristor and one input end of the AND gate; the control electrode of the fourth thyristor is connected with the cathode of the second thyristor, the anode of the fourth thyristor is connected with the control end of the pressure sensor module, and the cathode of the fourth thyristor is connected with the anode of the third thyristor; the collector of the triode is connected with one end of the capacitor, and the base of the triode is connected with the output end of the pressure sensor module; the cathode of the fifth thyristor is connected with the anode of the sixth thyristor, the control electrode of the sixth thyristor is connected with the clock signal, the cathode of the fifth thyristor is connected with the other input end of the AND gate, the other end of the capacitor is connected with the clock end of the pressure sensor, the output end of the AND gate is the output end, and the triode is of an N type;
the first temperature detection unit, the second temperature detection unit, the third temperature detection unit and the fourth temperature detection unit comprise temperature sensors;
the temperature sensor comprises a temperature sensor chip, a triode and a filtering component, wherein the temperature sensor chip is electrically connected with the filtering component and the triode in sequence through leads;
the temperature sensor chip is used for supplying power to the triode and detecting a voltage signal sent by the triode;
the triode is used for converting the induced temperature signal into a voltage signal and transmitting the voltage signal to the temperature sensor chip through the filtering component;
the filtering component is used for filtering the voltage signal sent by the triode and then sending the voltage signal to the temperature sensor chip;
the temperature sensor chip comprises a first switched capacitor circuit, a second switched capacitor circuit, a third switched capacitor circuit, a sampling capacitor, a first switch and an integrating amplifier;
the first switch capacitor circuit is connected with the first end of the sampling capacitor and is also connected with the filtering component;
the second switch capacitor circuit is connected with the first end of the sampling capacitor and is also connected with the filtering component;
the third switched capacitor circuit is connected with the first end of the sampling capacitor and is also connected with the filtering component;
and the second end of the sampling capacitor is grounded through a first switch, and the second end of the sampling capacitor is also connected with the integrating amplifier.
2. The method for detecting the temperature of the water storage device according to claim 1, wherein the intelligent water storage device further comprises: and the control unit is used for generating a control signal for the heating unit or the stirring unit according to the temperature adjusting electric signal.
3. The method for detecting the temperature of the water storage device according to claim 1, wherein the heating unit comprises:
the first digital-to-analog conversion unit is used for generating a heating current signal according to the control signal;
and the heating rod is used for heating according to the heating current signal.
4. The method for detecting the temperature of the water storage device according to claim 1, wherein the stirring unit comprises:
the second digital-to-analog conversion unit is used for generating an agitation current signal according to the control signal;
and the stirring motor is used for stirring the liquid contained in the water storage device according to the stirring current signal.
5. The method for detecting the temperature of the water storage device according to claim 1, wherein the heat dissipation unit comprises:
at least one heat dissipation hole for dissipating heat in the water storage device;
the baffle is matched with the heat dissipation holes and used for controlling the opening and closing sizes of the heat dissipation holes;
and the baffle driving motor is used for driving the opening and closing size of the baffle according to the rotating speed of the stirring motor.
6. The temperature detection method for the water storage device according to claim 1, wherein the step (5) comprises:
(51) after the heating unit is started, a third temperature of the liquid contained in the water storage device is obtained by using a third temperature detection unit at a time interval V1 from a first time T1, and a heating electric signal at the corresponding time is obtained at the same time;
(52) obtaining a fourth temperature at the heat radiating unit using the fourth temperature detecting unit a plurality of times at a time interval V1 from a first time T1 when the agitating unit is activated, and simultaneously obtaining an agitating electric signal at a corresponding time;
(53) correspondingly subtracting the third temperature and the fourth temperature obtained at the same time to obtain a temperature difference;
(54) establishing a fitting functional relationship between each moment and the temperature difference;
(55) and predicting the time required for reaching the expected temperature according to the fitted functional relation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111649338.6A CN114279589A (en) | 2021-12-30 | 2021-12-30 | Temperature detection method for water storage device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111649338.6A CN114279589A (en) | 2021-12-30 | 2021-12-30 | Temperature detection method for water storage device |
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| CN114279589A true CN114279589A (en) | 2022-04-05 |
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| CN202111649338.6A Withdrawn CN114279589A (en) | 2021-12-30 | 2021-12-30 | Temperature detection method for water storage device |
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2021
- 2021-12-30 CN CN202111649338.6A patent/CN114279589A/en not_active Withdrawn
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Application publication date: 20220405 |