CN108386895B - Comfortable energy-saving intelligent foot warmer and control method thereof - Google Patents
Comfortable energy-saving intelligent foot warmer and control method thereof Download PDFInfo
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- CN108386895B CN108386895B CN201810282515.3A CN201810282515A CN108386895B CN 108386895 B CN108386895 B CN 108386895B CN 201810282515 A CN201810282515 A CN 201810282515A CN 108386895 B CN108386895 B CN 108386895B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D13/00—Electric heating systems
- F24D13/02—Electric heating systems solely using resistance heating, e.g. underfloor heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1096—Arrangement or mounting of control or safety devices for electric heating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/046—Pressure sensors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/20—Heat consumers
- F24D2220/2009—Radiators
- F24D2220/2036—Electric radiators
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- Engineering & Computer Science (AREA)
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- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Central Heating Systems (AREA)
- Electric Stoves And Ranges (AREA)
Abstract
The invention discloses a comfortable energy-saving intelligent foot warmer and a control method thereof. The invention relates to a comfortable energy-saving intelligent foot warmer, which comprises a foot warming box, a heater, a foot rest, a controller and a capacitance induction wire; the heater is arranged in the foot warming box, and the pedal frame is arranged on the foot warming box above the heater; the heater is provided with two or more than two heaters and is respectively and electrically connected with the controller; the capacitive sensing wire is provided with two or more than two capacitive sensing wires and is electrically connected with the controller through shielding wires respectively; the capacitive sensing wires are arranged in grooves on the upper side of the foot rest, and the distribution positions of the capacitive sensing wires on the upper side of the foot rest are in one-to-one correspondence with the distribution positions of the heater in the foot warming box; the distribution position of each capacitance induction line on the upper side of the pedal frame is a temperature control induction position corresponding to the heater.
Description
Technical Field
The invention relates to a foot warmer, in particular to a comfortable energy-saving intelligent foot warmer and a control method thereof.
Background
The traditional foot warmer comprises a foot warming frame, a heater, a switch, an electric wire and a plug, wherein the heater is arranged under the foot warming frame, the heater is connected with the switch, the switch is connected with the electric wire, the electric wire is connected with the plug, the switch is a mechanical switch, and the switch is manual or foot-operated. The traditional foot warmer is easy to generate electric arc by a switch, unsafe, short in service life, high in energy consumption, not intelligent enough and uncomfortable in foot warming temperature, and the heater cannot automatically regulate temperature.
Disclosure of Invention
The invention aims to solve the technical problem of providing a comfortable energy-saving intelligent foot warmer which is safer, more comfortable, more energy-saving and more intelligent.
Also provides a control method of the comfortable energy-saving intelligent foot warmer.
In order to solve the technical problems, the comfortable energy-saving intelligent foot warmer comprises a foot warming box, a heater and a pedal frame, wherein the heater is arranged in the foot warming box, the pedal frame is arranged on the foot warming box above the heater, and the comfortable energy-saving intelligent foot warmer further comprises a controller and a capacitance induction wire; the heater is provided with two or more than two heaters and is respectively and electrically connected with the controller; the capacitive sensing wire is provided with two or more than two capacitive sensing wires and is electrically connected with the controller through shielding wires respectively; the capacitive sensing wires are arranged in grooves on the upper side of the foot rest, and the distribution positions of the capacitive sensing wires on the upper side of the foot rest are in one-to-one correspondence with the distribution positions of the heater in the foot warming box; the distribution position of each capacitance induction line on the upper side of the pedal frame is a temperature control induction position corresponding to the heater.
A temperature sensing module is integrated in the controller; and temperature sensors are further arranged in the gaps of the pedal frames and are distributed in one-to-one correspondence with the capacitance induction lines, and the temperature sensors are respectively and electrically connected with the controller.
The intelligent alarm system further comprises an audible alarm and an electronic prompt screen, wherein the audible alarm and the electronic prompt screen are electrically connected with the controller.
The capacitive sensing wire is an enameled wire or an insulating layer is covered on the groove, and the heater is also respectively connected with an over-temperature protector.
A convex separation strip is arranged between the capacitance sensing wires and is fixedly connected to the pedal frame.
In order to solve the technical problems, the control method of the comfortable energy-saving intelligent foot warmer comprises the following steps: sensing voltage of a temperature control sensing position of the pedal frame to obtain capacitance data; detecting whether a person puts his feet on the pedal frame according to the capacitance data; and intelligently supplying heat to the corresponding temperature control induction position according to the detection result.
The intelligent heat supply specifically comprises the following steps: if the human feet are detected to be placed on the foot rest, heating is sequentially performed according to the rapid heating temperature T1, the transition heating temperature T2 and the comfortable heating temperature T3, wherein T1=T3+ (45-tin) k1×mode, k1=0.06 when tin is less than 45s, and k1=0 when tin is less than 45 s; t2=t3+ (45-tin) k2×mode, k2=0.02 when tin <45s, k2=0 when tin > =45 s; t3=38+ (10-tout) k3×mode, k 3=0.02 when tout <10s, k 3=0 when tout > =10 s; tin is the duration of the foot rest being stepped on by a person, tout is the duration of the foot rest being left by the person; mode is comfort mode setting with value range of 0-8; the duration of T1 is inversely proportional to the change in ambient temperature and inversely proportional to the current temperature change of the corresponding temperature-controlled sensing location; the duration of T2 is inversely proportional to the change in ambient temperature and inversely proportional to the current temperature change of the corresponding temperature-controlled sensing location; if the person's feet are detected to leave the foot rest, heating is carried out according to the comfortable heating temperature T3; if it is detected that the feet are all separated from the foot rest, the heating is stopped by delay.
The delay time for stopping heating is 15s.
The method also comprises the following steps: if the person's feet are detected to leave the foot rest, an alarm prompt is sent out and a leaving mark is displayed; if the person is detected to return to the pedal frame, the alarm prompt is closed and the leaving mark is hidden.
The alarm sending prompt specifically comprises the following steps: if the human feet are detected not to leave the pedal frame completely, the human feet are buzzed for 3 times; if the feet are detected to be completely separated from the foot rest, an interval alarm is continuously sent to prompt the user to turn off the foot warmer.
By adopting the structure and the control method, intelligent induction and automatic foot warming are realized in the use process, special operation is not needed, electric arcs are not generated, the safety is improved, and the faults are fewer; the heat is supplied to the using position only, so that the intelligent and energy-saving type heating furnace is more intelligent and more energy-saving; the identification control is carried out according to the induced voltage of the human body, so that the interference is less, the sensitivity is more sensitive and the accuracy is more accurate; the intelligent heating is performed according to the use condition and the internal and external temperatures of the foot warmer, so that the foot warmer is more comfortable to use; leaving the alarm and screen prompt, safer and more intelligent.
Drawings
Fig. 1 is a schematic structural view of the foot warmer of the present invention.
In the figure: 1-foot warming box, 21-first over-temperature protector, 22-second over-temperature protector, 23-third over-temperature protector, 31-first heater, 32-second heater, 33-third heater, 4-controller, 5-shielded wire, 6-foot rest, 7-temperature sensor, 81-first capacitance induction wire, 82-second capacitance induction wire, 83-third capacitance induction wire.
Detailed Description
The invention is described in detail below with reference to the drawings and the detailed description.
As shown in figure 1, the comfortable energy-saving intelligent foot warmer comprises a foot warming box, a heater, a foot rest, a controller and a capacitance induction wire. The top of the foot warming box is opened, the side walls around the foot warming box are wooden frames, an aluminum counter plate is arranged at the bottom of the foot warming box, and the thickness of the aluminum counter plate is at least 4cm and is used for reflecting the heat of the heater to the upper pedal frame. The heater is fixed on an aluminum counter-heating plate in the foot warming box. The heater includes a first heater, a second heater, and a third heater, and is electrically connected with the controller, respectively. The heater is a positive temperature coefficient thermistor or an infrared heating tube. The pedal frame is arranged on the foot warming box above the heater. The foot rest is a wooden frame, which is comfortable and insulated. The pedal frame comprises cross beams and vertical beams, the cross beams are mutually spaced and parallel, the vertical beams are mutually spaced and parallel, the cross beams are arranged below the vertical beams, and the cross beams are vertically connected with the vertical beams. The space in the foot rest facilitates heat movement and heat radiation. The capacitance induction wire is a thin copper wire or an enameled wire. The capacitive sensing wire is arranged in the groove on the upper side of the pedal frame, and the groove comprises a groove of a cross beam and a groove of a vertical beam, so that the capacitive sensing wire is attractive and has a longer service life. The capacitive sensing wires are in an arc shape or an M shape, the coverage area is denser, and the voltage of the human feet is easier to sense. The capacitance sensing wire comprises a first capacitance sensing wire, a second capacitance sensing wire and a third capacitance sensing wire, and is electrically connected with the controller through shielding wires respectively. The shielding wire can reduce interference and enable the induced voltage to be more accurate. The end part of the shielding wire is connected with the controller through the plug-in type connector, so that the shielding wire is convenient to plug and pull, and is more convenient to detach. The distribution position of each capacitance induction wire on the upper side of the foot rest corresponds to the distribution position of the heater in the foot warming box one by one, and the foot warming box below each capacitance induction wire is correspondingly provided with a single heater. The number of the heater and the capacitance sensing wires can be two or more. The distribution position of each capacitance induction line on the upper side of the pedal frame is the temperature control induction position of the corresponding heater, and the temperature control induction position of the heater is the pedal frame position area above the heater. The controller is fixed on the outer wall of the foot warming box, and adopts an MSP430G2553 microprocessor, so that the power consumption is low.
When the foot is stepped on to the temperature control induction position on the foot rest, a capacitor is formed between the capacitor induction wire and the human foot, the capacitor induction wire induces micro-voltage on the human foot, the controller detects and identifies the capacitor data of the capacitor induction wire, and the human foot is detected to be stepped on the foot rest, so that the corresponding heater is controlled to heat;
when the foot leaves the temperature control induction position on the foot rest, the capacitance induction wire cannot form a capacitor, micro voltage on the foot of a person is not induced, the controller detects and identifies capacitance data of the capacitance induction wire, the foot of the person is not detected to be stepped on the foot rest, and then the corresponding heater is controlled to stop heating.
As shown in fig. 1, a temperature sensing module is integrated in the controller for detecting the ambient temperature outside the foot warming box and used as a temperature control reference. Temperature sensors are further arranged in gaps of the pedal frame and are distributed in one-to-one correspondence with the capacitance sensing wires, the temperature sensors are respectively electrically connected with the controller, and the temperature sensors can adopt 10K thermistors. The temperature sensor can detect the existing temperature on the foot rest for temperature control reference to the corresponding heater. Through integrated temperature sensing module and setting up temperature sensor, gather ambient temperature and the existing temperature of foot rest and make the reference for the controller is more accurate to the control by temperature change of heater, and it is more comfortable to warm the foot.
As shown in FIG. 1, the intelligent controller also comprises an audible alarm and an electronic prompt screen, and the audible alarm and the electronic prompt screen are electrically connected with the controller. The electronic prompt screen is a liquid crystal display screen. The electronic prompt screen also displays the ambient temperature detected by the controller and the foot warming temperature at each temperature control sensing position detected by the temperature sensor. The audible alarm combines with the electronic prompt screen to prompt and alarm a user, and prompts the user to close the foot warmer after the user leaves, so that the foot warmer is safer, more energy-saving and more convenient to use.
As shown in fig. 1, the capacitor induction wire is an enameled wire or an insulating layer is covered on a groove, and the insulating layer is a paint or wood layer, so that the capacitor induction wire is insulated and attractive, damage to the capacitor induction wire is reduced, the service life is longer, and faults are fewer. The heaters are also respectively connected with an over-temperature protector. The first heater is connected with the first over-temperature protector, the second heater is connected with the second over-temperature protector, and the third heater is connected with the third over-temperature protector. The over-temperature protector adopts a KSD301 normally closed kick type temperature control switch, the capacity is 10A250V, and the over-temperature is 65 ℃. The over-temperature protector can avoid the transition heating of the heater, reduce the burning out of the circuit and the occurrence of fire, and is safer.
As shown in FIG. 1, a convex separation strip is arranged between the capacitance sensing wires and is fixedly connected to the pedal frame. As the separation strip is protruded on the pedal frame, the foot massage is convenient, and the user can identify each temperature control sensing position through the touch sense of the foot, so that the starting of redundant heaters is avoided, and the energy saving is more convenient.
A control method of a comfortable energy-saving intelligent foot warmer comprises the following steps: sensing voltage of a temperature control sensing position of the pedal frame to obtain capacitance data; detecting whether a person puts his feet on the pedal frame according to the capacitance data; and intelligently supplying heat to the corresponding temperature control induction position according to the detection result. Temperature control is performed by sensing the voltage of the human feet, so that the temperature control is more accurate and more sensitive. The foot rest can be effectively heated and warmed at each position, so that the energy is saved.
The intelligent heat supply specifically comprises the following steps: if the human foot is detected to be placed on the foot rest, heating is sequentially performed according to a rapid heating temperature T1, a transitional heating temperature T2 and a comfortable heating temperature T3, wherein T1=T3+ (45-tin) k1×mode, T2=T3+ (45-tin) k2×mode, T3=38+ (10-tout) k3×mode, k1=0.06 when tin <45s, k2=0.02 when tin > =45 s, k1=0 when tout <10s, k3=0.02 when tout > =10 s, and tout is the duration of the human foot rest, and mode is a comfortable mode setting in a value range of 0-8; the duration of T1 is inversely proportional to the change in ambient temperature and inversely proportional to the current temperature change at the corresponding temperature-controlled sensing location; the duration of T2 is inversely proportional to the change in ambient temperature and inversely proportional to the current temperature change at the corresponding temperature-controlled sensing location; if the person's feet are detected to leave the foot rest, heating is carried out according to the comfortable heating temperature T3; if it is detected that the feet are all separated from the foot rest, the heating is stopped by delay.
Above-mentioned enabling heat supply, according to the warm foot temperature condition of foot rest, the external ambient temperature condition of warm foot case, whether just start, warm foot duration, warm foot departure time automatic selection suitable heating temperature curve carries out temperature control, reduces the manual work and transfers, effectively improves the comfort level of use, and simultaneously according to whether use automatic heat supply of suspending, more energy-conservation, safer.
For example, when the power-on is started, the first capacitive sensing line senses the voltage of the human foot in a mode 5, and the controller controls the first heater to intelligently heat so that the first heater sequentially heats according to T1, T2 and T3, wherein,
T1=39+(45-0)*0.06*5=52.5℃，tin=0，k3=0.06，
T1=39+(45-15)*0.06*5=48℃，tin=15，k3=0.06，
T2=39+(45-15)*0.02*5=42℃，tin=15，k3=0.02，
T2=39+(45-25)*0.02*5=41℃，tin=25，k3=0.02，
T3=38+(10-0)*0.02*5=39℃，tout=0，k3=0.02，
when it is detected that the person leaves the foot rest,
T3=38+(10-1)*0.02*5=38.9℃，tout=1，k3=0.02，
T3=38+(10-5)*0.02*5=38.5℃，tout=5，k3=0.02，
T3=38+(10-10)*0*5=38℃，tout=10，k3=0。
the delay of the delay closing is 15s. The 15 second closing delay is convenient for a user to leave briefly, and the heating is stopped regularly, so that the device is more convenient, more energy-saving and safer.
The control method further comprises the following steps: if the person's foot is detected to leave the foot rest, a voice prompt is sent out and a leaving mark is displayed. If the person is detected to return to the pedal frame, the audible alarm prompt is turned off and the departure sign is hidden. The voice and the image are combined to carry out intelligent prompt, so that the use is more convenient.
The above-mentioned sound alarm suggestion of sending out specifically does: if the human feet are detected not to leave the pedal frame, the human feet are buzzed 3 times. If the feet are detected to be completely separated from the foot rest, the interval alarm is started to prompt the user to turn off the foot warmer. Whether the user really leaves is intelligently identified, and the user is timely prompted to close the foot warmer, so that the foot warmer is more intelligent, safer and more energy-saving.
Claims (7)
1. The comfortable energy-saving intelligent foot warmer comprises a foot warming box, a heater and a pedal frame, wherein the heater is arranged in the foot warming box, and the pedal frame is arranged on the foot warming box above the heater;
the heater is provided with more than two heaters and is respectively and electrically connected with the controller;
the capacitance induction wires are provided with more than two and are respectively and electrically connected with the controller through shielding wires;
the capacitive sensing wires are arranged in grooves on the upper side of the foot rest, and the distribution positions of the capacitive sensing wires on the upper side of the foot rest are in one-to-one correspondence with the distribution positions of the heater in the foot warming box;
the distribution position of each capacitance induction line on the upper side of the pedal frame is a temperature control induction position corresponding to the heater;
a temperature sensing module is integrated in the controller; temperature sensors are arranged in the gaps of the pedal frames and are distributed in one-to-one correspondence with the capacitance induction lines, and the temperature sensors are respectively and electrically connected with the controller;
the control method comprises the following steps:
sensing voltage of a temperature control sensing position of the pedal frame to obtain capacitance data;
detecting whether a person puts his feet on the pedal frame according to the capacitance data;
intelligently supplying heat to the corresponding temperature control induction position according to the detection result;
the intelligent heat supply specifically comprises the following steps:
if the human feet are detected to be placed on the foot rest, heating is sequentially carried out according to the rapid heating temperature T1, the transition heating temperature T2 and the comfortable heating temperature T3, wherein,
t1=t3+ (45-tin) k1×mode, k1=0.06 when tin <45s, k1=0 when tin > =45 s;
t2=t3+ (45-tin) k2×mode, k2=0.02 when tin <45s, k2=0 when tin > =45 s;
t3=38+ (10-tout) k3×mode, k 3=0.02 when tout <10s, k 3=0 when tout > =10 s;
tin is the duration of the foot rest being stepped on by a person, tout is the duration of the foot rest being left by the person;
mode is comfort mode setting with value range of 0-8;
the duration of T1 is inversely proportional to the change in ambient temperature and inversely proportional to the current temperature change of the corresponding temperature-controlled sensing location; the duration of T2 is inversely proportional to the change in ambient temperature and inversely proportional to the current temperature change of the corresponding temperature-controlled sensing location;
if the person's feet are detected to leave the foot rest, heating is carried out according to the comfortable heating temperature T3;
if it is detected that the feet are all separated from the foot rest, the heating is stopped by delay.
2. The comfortable energy-saving intelligent foot warmer of claim 1, further comprising an audible alarm and an electronic prompting screen, wherein the audible alarm and the electronic prompting screen are electrically connected to the controller.
3. The comfortable energy-saving intelligent foot warmer according to claim 1, wherein the capacitance induction wire is an enameled wire or an insulating layer is covered on the groove, and the heaters are respectively connected with an over-temperature protector.
4. The comfortable energy-saving intelligent foot warmer of claim 1, wherein a raised separation strip is arranged between the capacitive sensing wires, and the raised separation strip is fixedly connected to the foot rest.
5. A comfortable energy-saving intelligent foot warmer according to claim 1, wherein the delay time for stopping the heat supply is 15s.
6. The comfortable energy-saving intelligent foot warmer of claim 1, further comprising the steps of: if the person's feet are detected to leave the foot rest, an alarm prompt is sent out and a leaving mark is displayed; if the person is detected to return to the pedal frame, the alarm prompt is closed and the leaving mark is hidden.
7. The comfortable energy-saving intelligent foot warmer of claim 6, wherein the alarm prompt is specifically: if the human feet are detected not to leave the pedal frame completely, the human feet are buzzed for 3 times; if the feet are detected to be completely separated from the foot rest, an interval alarm is continuously sent to prompt the user to turn off the foot warmer.
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| KR20070027666A (en) * | 2007-01-29 | 2007-03-09 | 문운석 | Apparatus for heating a foot and method of controlling temperature of apparatus for heating a foot |
| CN102052704A (en) * | 2009-11-09 | 2011-05-11 | 刘定能 | Combined warming box |
| CN104534559A (en) * | 2014-12-17 | 2015-04-22 | 遵义航阳电器厂 | Foot warming box temperature control device convenient to use |
| CN107495807A (en) * | 2017-08-18 | 2017-12-22 | 合肥荣电环境电器有限公司 | A kind of footmuff of Intelligent adjustment |
| CN208124417U (en) * | 2018-04-02 | 2018-11-20 | 湘南学院 | The comfortable intelligent electric foot warmer of energy conservation |
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2018
- 2018-04-02 CN CN201810282515.3A patent/CN108386895B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070027666A (en) * | 2007-01-29 | 2007-03-09 | 문운석 | Apparatus for heating a foot and method of controlling temperature of apparatus for heating a foot |
| CN102052704A (en) * | 2009-11-09 | 2011-05-11 | 刘定能 | Combined warming box |
| CN104534559A (en) * | 2014-12-17 | 2015-04-22 | 遵义航阳电器厂 | Foot warming box temperature control device convenient to use |
| CN107495807A (en) * | 2017-08-18 | 2017-12-22 | 合肥荣电环境电器有限公司 | A kind of footmuff of Intelligent adjustment |
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