CN112987817B - Water temperature regulating device - Google Patents
Water temperature regulating device Download PDFInfo
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- CN112987817B CN112987817B CN202110221064.4A CN202110221064A CN112987817B CN 112987817 B CN112987817 B CN 112987817B CN 202110221064 A CN202110221064 A CN 202110221064A CN 112987817 B CN112987817 B CN 112987817B
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- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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Abstract
The invention discloses a water temperature adjusting device. The water temperature adjusting device comprises a voice recognition module, a water temperature adjusting module, a flow detection module, a temperature detection module and a controller; the voice recognition module is used for converting the recognized voice regulation instruction and sending the converted voice regulation instruction to the controller; the water temperature adjusting module is used for adjusting the water temperature and the water flow of the water outlet pipe; the flow detection module is used for detecting a water flow signal of the water outlet pipe; the temperature sensing unit in the temperature detection module is used for detecting a water temperature signal of the water outlet pipe, and the first display control unit is used for controlling the first display unit to display the water temperature of the water outlet pipe according to the water temperature signal; the controller is used for controlling the water temperature adjusting module according to the water temperature adjusting value and/or the water flow adjusting value and controlling the water temperature adjusting module according to the difference of the water flow signal, the water temperature signal and the voice adjusting instruction. The technical scheme of the invention realizes automatic voice control of water temperature and water flow.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to a water temperature adjusting device.
Background
In daily life, when people need to use water, the water temperature is usually adjusted by using a water temperature adjusting switch (such as a faucet). This kind of temperature regulation mode needs through manual control, for example when the user bathes, generally according to the temperature of needs with certain angle manual with temperature regulating switch open, because the user can't learn the temperature and the flow of going out water in real time, consequently need come perception temperature and flow through the human body and whether satisfy the demand.
However, the temperature control range of the traditional water temperature regulating switch is narrow, the temperature to be regulated is not accurate enough, when the water flow changes, the water temperature cannot be timely regulated, the fluctuation of the water temperature is large, and the accurate control of the water temperature is difficult to realize. In case the play water temperature fluctuation range of temperature regulating switch is too big, probably can cause the condition of user scald or frostbite to the user need constantly adjust the switch through manual in the use, makes this kind of temperature regulation mode not convenient enough, has reduced user experience on the whole.
Disclosure of Invention
The invention provides a water temperature adjusting device, which is used for realizing automatic voice control of water temperature and water flow.
The invention provides a water temperature adjusting device, comprising: the system comprises a voice recognition module, a water temperature adjusting module, a flow detection module, a temperature detection module and a controller; the controller is electrically connected with the voice recognition module, the water temperature adjusting module, the flow detection module and the temperature detection module;
the voice recognition module is used for converting the recognized voice adjusting instruction and sending the converted voice adjusting instruction to the controller; wherein the voice regulating instruction comprises a water temperature regulating value and/or a water flow regulating value;
the water temperature adjusting module is connected with a hot water pipe, a cold water pipe and a water outlet pipe, and is used for adjusting the water temperature and the water flow of the water outlet pipe by adjusting the water flow of the hot water pipe and the cold water pipe;
the flow detection module is used for detecting a water flow signal of the water outlet pipe and sending the water flow signal to the controller; the temperature detection module comprises a temperature sensing unit, a first display control unit and a first display unit which are electrically connected in sequence; the temperature sensing unit is used for detecting a water temperature signal of the water outlet pipe and sending the water temperature signal to the controller and the first display control unit; the first display control unit is used for controlling the first display unit to display the water temperature of the water outlet pipe according to the water temperature signal;
the controller is used for controlling the water temperature adjusting module according to the water temperature adjusting value and/or the water flow adjusting value, and controlling the water temperature adjusting module according to the water flow signal, the water temperature signal and the difference of the voice adjusting instruction.
Optionally, the temperature sensing unit comprises a first transistor, a first resistor, a thermal diode, a second resistor and a sliding varistor;
the first transistor, the first resistor and the thermal diode are connected in sequence, a power signal is connected to a first end of the first transistor and a first end of the second resistor, a grid electrode of the first transistor and a first pole of the thermal diode are connected to a first signal input end of the first display control unit, a second end of the second resistor is connected to a first end of the sliding rheostat, a second end of the sliding rheostat is connected to a second pole of the thermal diode and grounded, and a sliding contact of the sliding rheostat is connected to a second signal input end of the first display control unit.
Optionally, the first display control unit comprises an analog-to-digital converter, a decoder and a display driver;
the analog-to-digital converter is used for converting the water temperature signal detected by the temperature sensing unit into a digital signal; the decoder is used for decoding the water temperature signal in a digital signal form; the display driver is used for driving the first display unit to display according to the decoded water temperature signal.
Optionally, the first display unit includes a plurality of light emitting diode nixie tubes.
Optionally, the water temperature adjusting module comprises an adjusting valve, and the adjusting valve comprises a hot water inlet, a cold water inlet and a water outlet; the hot water inlet is connected with the hot water pipe, the cold water inlet is connected with the cold water pipe, and the water outlet is connected with the water outlet pipe; the regulating valve regulates the water flow of the hot water pipe and the cold water pipe by rotating.
Optionally, the controller further comprises a protection circuit, wherein the protection circuit is electrically connected with the controller; the protection circuit is used for carrying out over-temperature protection, over-current protection, over-voltage protection and short circuit protection on the water temperature adjusting device.
Optionally, the heating device is arranged in the hot water pipe, the heating device is electrically connected with the controller, and the heating device is used for heating the water stored in the hot water pipe according to the voice regulation instruction and the water temperature of the hot water pipe under the control of the controller.
Optionally, when the voice adjustment instruction includes the water temperature adjustment value, the controller is configured to perform proportional-integral-derivative control on the water temperature adjustment module according to a difference between the water temperature signal and the water temperature adjustment value;
and when the voice adjusting instruction comprises the water flow adjusting value, the controller is used for carrying out proportional integral derivative control on the water temperature adjusting module according to the difference between the water flow signal and the water flow adjusting value.
Optionally, the controller includes an embedded single chip microcomputer.
Optionally, the flow detection module includes a flow sensing unit, a second display control unit and a second display unit, which are electrically connected in sequence; the flow sensing unit is used for detecting the water flow signal and sending the water flow signal to the controller and the second display control unit; the second display control unit is used for controlling the second display unit to display the water flow of the water outlet pipe according to the water flow signal.
The invention provides a water temperature adjusting device which comprises a voice recognition module, a water temperature adjusting module, a flow detection module, a temperature detection module and a controller, wherein the voice recognition module is used for converting recognized voice adjusting instructions and sending the converted voice adjusting instructions to the controller so as to realize voice adjustment of water temperature and water flow, different users can adjust the water temperature and the water flow more conveniently according to own water requirements, the water flow of a hot water pipe and a cold water pipe is adjusted through the water temperature adjusting module so as to adjust the water temperature and the water flow of a water outlet pipe, a water flow signal of the water outlet pipe is detected through the flow detection module and is sent to the controller, a temperature sensing unit in the temperature detection module is used for detecting the water temperature signal of the water outlet pipe and sending the water temperature signal to the controller and a first display control unit, and the first display unit is used for controlling the water temperature of the water outlet pipe according to the water temperature signal, the water temperature control system has the advantages that a user can conveniently know the water temperature in the water using process without sensing the water temperature by using human organs, the water temperature adjusting module is controlled by the controller according to the water temperature adjusting value and/or the water flow adjusting value, and the water temperature adjusting module is controlled according to the difference of the water flow signal, the water temperature signal and the voice adjusting instruction, so that a double closed-loop control system of flow and temperature is formed, and the accurate adjustment of the water temperature and the water flow is facilitated. Compared with the prior art, the technical scheme of the invention relieves the problems of lower control precision and inconvenient water temperature regulation of the existing water temperature regulation mode, realizes automatic voice control of water temperature and water flow, improves convenience and comfort of water use, and is beneficial to improving user experience.
Drawings
FIG. 1 is a schematic structural diagram of a water temperature regulating device according to the present invention;
FIG. 2 is a schematic structural diagram of a temperature detection module according to the present invention;
FIG. 3 is a schematic structural diagram of another temperature detection module provided by the present invention;
fig. 4 is a schematic structural diagram of another water temperature adjusting device provided by the invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a water temperature regulating device, specifically a schematic structural diagram of a module of the water temperature regulating device, according to the present invention; fig. 2 is a schematic structural diagram of a temperature detection module, specifically a schematic structural diagram of a temperature detection module according to the present invention. Referring to fig. 1 and 2, the water temperature adjusting apparatus includes: the system comprises a voice recognition module 100, a water temperature adjusting module 200, a flow detection module 300, a temperature detection module 400 and a controller 500; the controller 500 is electrically connected with the voice recognition module 100, the water temperature adjusting module 200, the flow detection module 300 and the temperature detection module 400; the voice recognition module 100 is configured to convert the recognized voice adjustment instruction and send the converted voice adjustment instruction to the controller 500; the voice adjusting instruction comprises a water temperature adjusting value and/or a water flow adjusting value; the water temperature adjusting module 200 is connected with the hot water pipe, the cold water pipe and the water outlet pipe, and the water temperature adjusting module 200 is used for adjusting the water temperature and the water flow of the water outlet pipe by adjusting the water flow of the hot water pipe and the cold water pipe; the flow detection module 300 is configured to detect a water flow signal of the water outlet pipe and send the water flow signal to the controller 500; the temperature detection module 400 includes a temperature sensing unit 410, a first display control unit 420 and a first display unit 430 which are electrically connected in sequence; the temperature sensing unit 410 is used for detecting a water temperature signal of the water outlet pipe and sending the water temperature signal to the controller 500 and the first display control unit 420; the first display control unit 420 is used for controlling the first display unit 430 to display the water temperature of the water outlet pipe according to the water temperature signal; the controller 500 is configured to control the water temperature adjusting module 200 according to the water temperature adjusting value and/or the water flow adjusting value, and control the water temperature adjusting module 200 according to a difference between the water flow signal, the water temperature signal, and the voice adjusting instruction.
In particular, the speech recognition module 100 is capable of converting the user's speech content into a corresponding computer-readable signal. The hot water pipe, the cold water pipe and the water outlet pipe are connected through the water temperature adjusting module 200, and when a user needs to use water, the hot water in the hot water pipe and the cold water in the cold water pipe can be controlled to enter the water outlet pipe through the water temperature adjusting module 200 so as to use the water in the water outlet pipe. The water temperature adjusting module 200 can also adjust the water flow entering the water outlet pipe in the hot water pipe and the water flow entering the water outlet pipe in the cold water pipe respectively to adjust the mixing ratio of the hot water and the cold water in the water outlet pipe, so as to adjust the water flow of the water outlet pipe and simultaneously adjust the water temperature of the water outlet pipe. The flow detection module 300 may include a flow detection device disposed in the outlet pipe to detect the flow of water in the outlet pipe in real time. Optionally, the flow detection module 300 may further include flow detection devices respectively disposed in the hot water pipe and the cold water pipe to detect water flow in the hot water pipe and the cold water pipe in real time. The temperature sensing unit 410 in the temperature detection module 400 can be disposed in the outlet pipe to detect the water temperature of the outlet pipe in real time. The first display control unit 420 and the first display unit 430 in the temperature detection module 400 may be disposed outside the water pipe, so that a user can know the real-time water temperature of the water outlet pipe during the water use process. The controller 500 can control the voice recognition module 100, the water temperature adjusting module 200, the flow rate detecting module 300 and the temperature detecting module 400, for example, the controller 500 may include an embedded single chip microcomputer of the model STM32 series.
For example, when the user needs to use water, a voice adjustment command including a water temperature adjustment value and/or a water flow adjustment value may be issued to the water temperature adjustment device, for example, when the voice adjustment command issued by the user is "adjust the water temperature to x degrees celsius and adjust the water flow to y", the voice recognition module 100 may recognize that the water temperature adjustment value set by the user is x degrees celsius and the water flow adjustment value is y, convert the voice adjustment command into a computer-readable command, and send the converted command to the controller 500. The controller 500 may automatically generate a corresponding control signal according to the water temperature adjustment value and the water flow adjustment value in the instruction, and send the control signal to the water temperature adjustment module 200, for example, the control signal may include water flow that the hot water pipe converges into the water outlet pipe when the water temperature adjustment value is x degrees celsius and the water flow adjustment value is y, and water flow that the cold water pipe converges into the water outlet pipe. The water temperature adjusting module 200 can adjust the water flow rate of the hot water pipe flowing into the water outlet pipe and the water flow rate of the cold water pipe flowing into the water outlet pipe according to the control signal, so as to control the water temperature in the water outlet pipe while adjusting the water flow rate. Meanwhile, the flow detection module 300 can detect the water flow in the water pipe in real time, generate a corresponding water flow signal and send the water flow signal to the controller 500, so that the controller 500 compares the water flow adjustment value in the voice adjustment command with the real-time water flow signal, and continues to control the water temperature adjustment module 200 according to the difference between the two values, so as to form closed-loop control, so that the water flow in the water outlet pipe meets the water flow adjustment value set by a user. The temperature sensing unit 410 can detect the water temperature in the water outlet pipe in real time, generate a corresponding water temperature signal and send the corresponding water temperature signal to the controller 500, so that the controller 500 compares the water temperature adjusting value in the voice festival command with the real-time water temperature signal, and continuously controls the water temperature adjusting module 200 according to the difference between the two signals to form closed-loop control, so that the water temperature in the water outlet pipe gradually approaches the water temperature adjusting value set by a user. In addition, the temperature sensing unit 410 can also send the water temperature signal to the first display control unit 420, so that the first display control unit 420 controls the first display unit 430 to display the real-time water temperature of the water outlet pipe according to the water temperature signal, so that a user can see the real-time displayed temperature in the water using process, and does not need to use a human organ to sense the water temperature, thereby avoiding accidents such as scalding.
According to the technical scheme, the voice recognition module is used for realizing voice regulation of water temperature and water flow, different users can regulate the water temperature and the water flow more conveniently according to own water requirements, a double closed loop control system of flow and temperature is formed by the flow detection module, the temperature detection module and the controller, the water temperature and the water flow can be regulated accurately, the water temperature is displayed in real time by the first display unit, and the users can conveniently know the water temperature in the water using process without sensing the water temperature by using human organs. Compared with the prior art, the technical scheme of the invention relieves the problems of lower control precision and inconvenient water temperature regulation of the existing water temperature regulation mode, realizes automatic voice control of water temperature and water flow, improves convenience and comfort of water use, and is beneficial to improving user experience.
Fig. 3 is a schematic structural diagram of another temperature detection module provided by the present invention, specifically, a schematic circuit structural diagram of the temperature detection module. With reference to fig. 1 to fig. 3, on the basis of the above scheme, optionally, the temperature sensing unit 410 is provided to include a first transistor VT, a first resistor R1, a thermal diode VD, a second resistor R2, and a sliding varistor RP 1; the first transistor VT, the first resistor R1 and the thermal diode VD are connected in sequence, a first end of the first transistor VT and a first end of the second resistor R2 are connected to a power signal, a gate of the first transistor VT and a first pole of the thermal diode VD are connected to a first signal input terminal (for example, the port 30 of the first display control unit 420) of the first display control unit 420, a second end of the second resistor R2 is connected to a first end of the slide rheostat RP1, a second end of the slide rheostat RP1 is connected to a second pole of the thermal diode VD and grounded, and a slide contact of the slide rheostat RP1 is connected to a second signal input terminal (for example, the port 31 of the first display control unit 420) of the first display control unit 420.
Specifically, the first Transistor VT may be a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET). The thermal diode VD may be a temperature sensitive diode whose forward voltage drop may vary with temperature. Illustratively, the thermal diode VD may be a 1N4148 diode having a negative temperature coefficient of forward voltage drop of its internal PN junction and exhibiting a linear change over a temperature range, specifically, a temperature coefficient of forward voltage drop of about-2.2 mV/deg.c (i.e., about 2.2mV reduction of forward voltage drop per T deg.c increase), and a measurable temperature range of-50 to +150 deg.c with good linearity. If a constant current source is adopted to provide constant forward working voltage for the diode, the linearity of temperature measurement can be further improved, and the measurement error of the temperature sensing unit 410 is less than or equal to 0.5 ℃.
Illustratively, the first transistor VT, the first resistor R1, the thermal diode VD, the second resistor R2, and the sliding resistor RP1 form a temperature bridge. The thermal diode VD is used as a temperature sensor, the first transistor VT and the first resistor R1 form a constant current source to provide constant forward current for the thermal diode VD, and the second resistor R2 and the slide rheostat RP1 form the other two bridge arms of the temperature measuring bridge. In the temperature bridge, a first end of the first transistor VT and a first end of the second resistor R2 are connected to a power signal + V, a second end of the sliding varistor RP1 and a second end of the thermal diode VD are grounded, and output signals of a first pole (for example, the first pole is an anode) of the thermal diode VD and a sliding contact of the sliding varistor RP1 represent a differential signal voltage as a function of temperature, wherein a voltage at the sliding contact of the sliding varistor RP1 can be used as a fixed reference voltage, and a voltage at the first pole of the thermal diode VD can be used as a function voltage varying with temperature. The advantage that this embodiment set up like this lies in, is favorable to increasing temperature sensing unit's temperature measurement scope, promotes temperature sensing unit's measurement accuracy and temperature measurement speed.
With reference to fig. 1 to 3, optionally, the first display control unit 420 is configured to include an analog-to-digital converter, a decoder, and a display driver (not shown in the figure); the analog-to-digital converter is used for converting the water temperature signal detected by the temperature sensing unit 410 into a digital signal; the decoder is used for decoding the water temperature signal in the form of the digital signal; the display driver is used for driving the first display unit 430 to display according to the decoded water temperature signal.
Specifically, the analog-to-digital converter can convert the voltage analog signal (i.e., the water temperature signal) indicating the water temperature of the water outlet pipe output by the temperature sensing unit 410 into a corresponding digital signal, so that the decoder continues to process the digital signal, converts the digital signal into a signal for controlling the first display unit 430 to display, and sends the signal to the display driver, so as to drive the first display unit 430 to display the real-time water temperature of the water outlet pipe through the display driver. In addition, the analog-to-digital converter can also send the converted digital signal to the controller 500, so that the controller 500 performs closed-loop control on the water temperature of the water outlet pipe according to the digital signal and the voice adjusting instruction.
With reference to fig. 1 to 3, optionally, the first display unit 430 is provided to include a plurality of Light Emitting Diode (LED) nixie tubes. Specifically, the LED nixie tube may be an 8-shaped device formed by packaging seven light emitting diodes together, each stroke of the 8-shaped device corresponds to one light emitting diode, and a connection terminal of each light emitting diode is LED out to the outside of the LED nixie tube, and the connection terminals of the light emitting diodes corresponding to each stroke may be represented as an a terminal, a b terminal, a c terminal, a d terminal, an e terminal, an f terminal, and a g terminal. The plurality of LED nixie tubes in the first display unit 430 can display the real-time water temperature of the water tube under the control of the display driver in the first display unit 430.
Illustratively, the first display unit 430 includes three LED nixie tubes, and since the nixie tubes of the hundreds of digits only need to display "1" and "-" numbers, only the light emitting diodes corresponding to the ends b, c and g of the nixie tubes of the hundreds of digits are connected. The first display unit 430 may be installed in a transparent liquid crystal display of the water temperature adjusting device, so that a user can see the temperature displayed in real time during the water using process, and does not need to use a human organ to sense the water temperature, thereby preventing accidents such as scalding.
With reference to fig. 1 to fig. 3, on the basis of the foregoing solutions, optionally, the first display control unit 420 may be an analog-to-digital (a/D) conversion driving integrated circuit with a model number of ICL7107, an analog-to-digital (a/D) converter, a BCD seven-segment decoder, an LED nixie tube driver, a clock, a reference voltage source, and other functional modules may be integrated inside the a/D conversion driving integrated circuit, and the a/D conversion driving integrated circuit may convert an input water temperature signal into a digital signal, decode the digital signal through the BCD seven-segment decoder, and drive the LED nixie tube driver to display the real-time water temperature of the water outlet tube according to the decoded signal. In addition, the A/D conversion driving integrated circuit also has the functions of zeroing, automatically displaying temperature polarity (namely positive and negative), over-range indication and the like, once the water temperature of the water outlet pipe exceeds the water temperature which can be born by a human body, voice prompt is automatically sent, and the water temperature is controlled through the controller, so that the temperature is kept to be the proper temperature.
Illustratively, the A/D conversion driver IC has a first pin 1 for inputting a power supply signal + V (e.g., 5V voltage), and a twenty-sixth pin 26 for inputting a power supply signal-V (e.g., -5V voltage). Output signals of the second pin 2 to the eighth pin 8 are used for driving the one-bit LED nixie tube to display, the second pin 2 is connected with the d end of the one-bit LED nixie tube, the third pin 3 is connected with the c end of the one-bit LED nixie tube, the fourth pin 4 is connected with the b end of the one-bit LED nixie tube, the fifth pin 5 is connected with the a end of the one-bit LED nixie tube, the sixth pin 6 is connected with the f end of the one-bit LED nixie tube, the seventh pin 7 is connected with the g end of the one-bit LED nixie tube, and the eighth pin 8 is connected with the e end of the one-bit LED nixie tube. Output signals of a ninth pin 9 to a fifteenth pin 15 are used for driving a ten-digit LED nixie tube to display, the ninth pin 9 is connected with the d end of the ten-digit LED nixie tube, a tenth pin 10 is connected with the c end of the ten-digit LED nixie tube, an eleventh pin 11 is connected with the b end of the ten-digit LED nixie tube, a twelfth pin 12 is connected with the a end of the ten-digit LED nixie tube, a thirteenth pin 13 is connected with the f end of the ten-digit LED nixie tube, a fourteenth pin 14 is connected with the e end of the ten-digit LED nixie tube, and a fifteenth pin 15 is connected with the g end of the ten-digit LED nixie tube. Output signals of a sixteenth pin 16, a twentieth pin 20 and a twenty-fourth pin 24 are used for driving the hundred-bit LED nixie tube to display, the sixteenth pin 16 is connected with the b end of the hundred-bit LED nixie tube, the twentieth pin 20 is connected with the g end of the hundred-bit LED nixie tube, and the twenty-fourth pin 24 is connected with the c end of the hundred-bit LED nixie tube. The twenty-first pin 21 is used for inputting a ground signal, the thirty-second pin 32 is a common end of an analog signal, the thirty-fifth pin 35 is used for inputting a reference voltage, and the twenty-first pin 21, the thirty-second pin 32 and the thirty-fifth pin 35 are all grounded. The twenty-seventh pin 27 is a signal terminal of the integrating capacitor, and is connected to a third capacitor C3, i.e., an integrating capacitor. The twenty-eighth pin 28 is the buffer amplifier output and is connected to a fourth resistor R4, i.e., an integrating resistor. The twenty-ninth pin 29 is an inverting input terminal of the integrator and the comparator, and is connected with a fourth capacitor C4, and the fourth capacitor C4 is used for realizing automatic zero setting. The thirtieth pin 30 and the thirty-first pin 31 are analog signal input ends, the thirtieth pin 30 is connected with a first pole of a thermal diode VD in the temperature measuring bridge, the thirty-first pin 31 is connected with a sliding contact of a first sliding rheostat RP1 in the temperature measuring bridge, the thirtieth pin 30 and the thirty-first pin 31 are further connected with two ends of a second capacitor C2 respectively, and the second capacitor C2 is a filter capacitor. The thirty-third pin 33 and the thirty-fourth pin 34 are both external reference capacitor terminals and are respectively connected to two ends of the first capacitor C1, and the first capacitor C1 is a reference capacitor. The thirty-sixth pin 36 is used for inputting a reference signal, the thirty-sixth pin 36 is connected with a sliding contact of the second sliding resistor RP2, the third resistor R3 is a current limiting resistor, and the voltage at the second sliding resistor RP2 can be used as a reference voltage. The thirty-eighth pin 38, the thirty-ninth pin 39 and the forty-fourth pin 40 are all terminals of a clock oscillator, the thirty-eighth pin 38 is connected with a fifth capacitor C5, the thirty-ninth pin 39 is connected with a fifth resistor R5, and the fifth capacitor C5 and the fifth resistor R5 form an oscillator. The sixth resistor R6, the seventh resistor R7 and the eighth resistor R8 are current limiting resistors of the hundred-digit, ten-digit and one-digit LED nixie tubes respectively.
Referring to fig. 1, optionally, the water temperature adjusting module 200 is provided to include an adjusting valve including a hot water inlet, a cold water inlet, and a water outlet; the hot water inlet is connected with a hot water pipe, the cold water inlet is connected with a cold water pipe, and the water outlet is connected with a water outlet pipe; the regulating valve is rotated to regulate the water flow of the hot water pipe and the cold water pipe. For example, when the water temperature adjusting module 200 adjusts the water temperature and the water flow under the control of the controller 500, the forward rotation of the adjusting valve can be automatically controlled to control the water flow of hot water entering the water outlet, and the reverse rotation of the adjusting valve can be automatically controlled to control the water flow of cold water entering the water outlet, so that the water temperature of the water outlet pipe can be adjusted while the water flow of the water outlet pipe is adjusted.
Fig. 4 is a schematic structural diagram of another water temperature adjusting device provided by the present invention, specifically, a schematic structural diagram of a module of the water temperature adjusting device. As shown in fig. 4, optionally, the water temperature adjusting device further comprises a protection circuit 600, and the protection circuit 600 is electrically connected with the controller 500; the protection circuit 600 is used for performing over-temperature protection, over-current protection, over-voltage protection and short circuit protection on the water temperature adjusting device.
Referring to fig. 1 and 4, on the basis of the above schemes, optionally, when the voice adjustment instruction includes a water temperature adjustment value, the controller 500 is configured to perform pid control on the water temperature adjustment module 200 according to a difference between the water temperature signal and the water temperature adjustment value; when the voice adjustment instruction includes a water flow adjustment value, the controller 500 is configured to perform pid control on the water temperature adjustment module 200 according to a difference between the water flow signal and the water flow adjustment value.
Specifically, when the voice adjustment command includes a water temperature adjustment value, the controller 500 may determine a control deviation according to the water temperature adjustment value and a temperature value corresponding to a real-time water temperature signal, linearly combine the deviation according to proportion, integral, and differential to form a control quantity, and then control the water temperature adjustment module 200 to adjust the water temperature according to the control quantity. Similarly, when the voice adjustment instruction includes a water flow adjustment value, the controller 500 may determine a control deviation according to the water flow adjustment value and a flow value corresponding to the real-time water flow signal, linearly combine the deviation according to proportion, integral and differential to form a control quantity, and then control the water temperature adjustment module 200 to adjust the water flow according to the control quantity. Because the PID control has the characteristics of good robustness and high reliability, the invention enables the water temperature adjusting device to more accurately control the water temperature and the water flow by carrying out the double closed loop PID control on the water temperature and the water flow.
Illustratively, the protection circuit 600 can obtain the water temperature signal received by the controller 500 in real time, and when the protection circuit 600 determines that the water temperature of the water outlet pipe is greater than the preset water temperature threshold according to the water temperature signal, the water temperature adjusting device can be controlled to stop working, so as to realize over-temperature protection. The protection circuit 600 may further obtain, through the controller 500, parameters of electric energy, such as voltage and current, in the water temperature adjustment device in real time, and when the protection circuit 600 detects that the working current of the water temperature adjustment device is greater than the preset current threshold, the protection circuit may control the water temperature adjustment device to stop working, so as to implement overcurrent protection. When the protection circuit 600 detects that the working voltage of the water temperature adjusting device is greater than the preset voltage threshold, the water temperature adjusting device can be controlled to stop working, so as to realize overvoltage protection. When the protection circuit 600 detects that the water temperature adjusting device is short-circuited, the water temperature adjusting device can be controlled to stop working, so that short-circuit protection is realized. The advantage of setting up like this is favorable to guaranteeing user's safe water use, avoids meeting accident.
On the basis of the above schemes, optionally, the water temperature adjusting device further includes a heating device disposed in the hot water pipe, the heating device is electrically connected to the controller, and the heating device is configured to heat the water stored in the hot water pipe according to the voice adjusting instruction and the water temperature of the hot water pipe under the control of the controller.
For example, the heating device may be an electric heating actuator, which is also called an electric heating thermostatic controller, and the electric heating actuator includes an electric heating wire inside, and the electric heating actuator may heat the water stored in the hot water pipe through the electric heating wire. For example, a heating device with a wireless communication function may be provided in the hot water pipe to control the heating device in the hot water pipe according to a voice adjustment instruction of a user and a water temperature of the hot water pipe by the controller when the user needs to use water, so that the heating device heats the water stored in the hot water pipe. Among the current temperature regulation mode, when the user needs the water, if there is cold water in the hot-water line storage, then need put the cold water of a period in advance and just enable the temperature of outlet pipe and satisfy user's demand, compare with prior art, the scheme of this embodiment can promote the rising speed of outlet pipe temperature, even if there is cold water in the storage of hot-water line, also can promote the temperature of outlet pipe rapidly, is favorable to optimizing user experience.
On the basis of the above schemes, optionally, the flow detection module is arranged to include a flow sensing unit, a second display control unit and a second display unit which are electrically connected in sequence; the flow sensing unit is used for detecting a water flow signal and sending the water flow signal to the controller and the second display control unit; the second display control unit is used for controlling the second display unit to display the water flow of the water outlet pipe according to the water flow signal.
Illustratively, the flow sensing unit may include a flow sensor disposed in the outlet pipe, the second display control unit may include an analog-to-digital converter, a decoder, and a display driver, for example, the second display control unit may include an a/D conversion driving integrated circuit as shown in fig. 3, and the second display unit may include an LED nixie tube. The advantage that sets up like this lies in, adc can convert the discharge signal of the outlet pipe that flow sensor detected into corresponding digital signal to make the decoder continue to handle this digital signal, convert this digital signal into the signal that control LED charactron shows, and with this signal transmission to showing the driver, and then show the real-time discharge that LED charactron shows the outlet pipe in the drive second display element through showing the driver, make the user can learn the real-time discharge of outlet pipe conveniently.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (9)
1. A water temperature adjustment device, comprising: the system comprises a voice recognition module, a water temperature adjusting module, a flow detection module, a temperature detection module and a controller; the controller is electrically connected with the voice recognition module, the water temperature adjusting module, the flow detection module and the temperature detection module;
the voice recognition module is used for converting the recognized voice adjusting instruction and sending the converted voice adjusting instruction to the controller; wherein the voice regulating instruction comprises a water temperature regulating value and/or a water flow regulating value;
the water temperature adjusting module is connected with a hot water pipe, a cold water pipe and a water outlet pipe, and is used for adjusting the water temperature and the water flow of the water outlet pipe by adjusting the water flow of the hot water pipe and the cold water pipe;
the flow detection module is used for detecting a water flow signal of the water outlet pipe and sending the water flow signal to the controller; the flow detection module comprises flow detection devices respectively arranged in the hot water pipe and the cold water pipe; the temperature detection module comprises a temperature sensing unit, a first display control unit and a first display unit which are electrically connected in sequence; the temperature sensing unit is used for detecting a water temperature signal of the water outlet pipe and sending the water temperature signal to the controller and the first display control unit; the first display control unit is used for controlling the first display unit to display the water temperature of the water outlet pipe according to the water temperature signal;
the controller is used for controlling the water temperature adjusting module according to the water temperature adjusting value and/or the water flow adjusting value and controlling the water temperature adjusting module according to the water flow signal, the water temperature signal and the difference of the voice adjusting instruction;
and when the voice adjusting instruction comprises the water temperature adjusting value, the controller is used for carrying out proportional integral derivative control on the water temperature adjusting module according to the difference between the water temperature signal and the water temperature adjusting value.
2. The water temperature adjusting apparatus according to claim 1, wherein the temperature sensing unit includes a first transistor, a first resistor, a thermistor, a second resistor, and a sliding varistor;
the first transistor, the first resistor and the thermal diode are connected in sequence, a power signal is connected to a first end of the first transistor and a first end of the second resistor, a grid electrode of the first transistor and a first pole of the thermal diode are connected to a first signal input end of the first display control unit, a second end of the second resistor is connected to a first end of the sliding rheostat, a second end of the sliding rheostat is connected to a second pole of the thermal diode and grounded, and a sliding contact of the sliding rheostat is connected to a second signal input end of the first display control unit.
3. The water temperature regulating device according to claim 2, wherein the first display control unit comprises an analog-to-digital converter, a decoder, and a display driver;
the analog-to-digital converter is used for converting the water temperature signal detected by the temperature sensing unit into a digital signal; the decoder is used for decoding the water temperature signal in a digital signal form; the display driver is used for driving the first display unit to display according to the decoded water temperature signal.
4. The water temperature regulating device of claim 3, wherein said first display unit comprises a plurality of light emitting diode nixie tubes.
5. The water temperature regulating device according to claim 1, wherein the water temperature regulating module comprises a regulating valve comprising a hot water inlet, a cold water inlet and an outlet; the hot water inlet is connected with the hot water pipe, the cold water inlet is connected with the cold water pipe, and the water outlet is connected with the water outlet pipe; the regulating valve regulates the water flow of the hot water pipe and the cold water pipe by rotating.
6. The water temperature regulating device of claim 1, further comprising a protection circuit electrically connected to said controller; the protection circuit is used for carrying out over-temperature protection, over-current protection, over-voltage protection and short circuit protection on the water temperature adjusting device.
7. The water temperature regulating device according to claim 1, further comprising a heating device disposed in the hot water pipe, the heating device being electrically connected to the controller, the heating device being configured to heat the water stored in the hot water pipe according to the voice regulation instruction and the water temperature of the hot water pipe under the control of the controller.
8. The water temperature regulating device of claim 1, wherein the controller comprises an embedded single chip microcomputer.
9. The water temperature regulating device according to claim 1, wherein the flow detecting module comprises a flow sensing unit, a second display control unit and a second display unit which are electrically connected in sequence; the flow sensing unit is used for detecting the water flow signal and sending the water flow signal to the controller and the second display control unit; the second display control unit is used for controlling the second display unit to display the water flow of the water outlet pipe according to the water flow signal.
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| US6002114A (en) * | 1998-09-15 | 1999-12-14 | Lee; Ming-Hsiu | Control device for an electric water heater |
| CN204513799U (en) * | 2015-04-01 | 2015-07-29 | 长春工业大学 | Novel sound control intelligent water heater control system |
| CN106020293B (en) * | 2016-05-17 | 2018-04-03 | 江苏大学 | A kind of detecting and controlling system of shower water temperature and flow |
| CN208488691U (en) * | 2018-08-06 | 2019-02-12 | 东莞市科威纳自动化工业有限公司 | A kind of intelligence water temperature control system |
| CN211172219U (en) * | 2019-11-19 | 2020-08-04 | 金陵科技学院 | Temperature-adjustable shower device based on voice control system |
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