CN107019640A - A kind of intelligent cooking pot for herbs - Google Patents
A kind of intelligent cooking pot for herbs Download PDFInfo
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- CN107019640A CN107019640A CN201710145277.7A CN201710145277A CN107019640A CN 107019640 A CN107019640 A CN 107019640A CN 201710145277 A CN201710145277 A CN 201710145277A CN 107019640 A CN107019640 A CN 107019640A
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- 238000010411 cooking Methods 0.000 title claims abstract description 8
- 235000008216 herbs Nutrition 0.000 title claims abstract 7
- 239000003814 drug Substances 0.000 claims abstract description 115
- 238000010438 heat treatment Methods 0.000 claims abstract description 90
- 241000411851 herbal medicine Species 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims abstract description 54
- 230000008569 process Effects 0.000 claims abstract description 30
- 238000001514 detection method Methods 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 28
- 238000005485 electric heating Methods 0.000 claims description 26
- 230000007423 decrease Effects 0.000 claims description 21
- 238000009413 insulation Methods 0.000 claims description 17
- 238000002791 soaking Methods 0.000 claims description 16
- 229940079593 drug Drugs 0.000 claims description 15
- 239000006260 foam Substances 0.000 claims description 11
- 230000000630 rising effect Effects 0.000 claims description 9
- 238000009529 body temperature measurement Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 abstract description 8
- 238000009835 boiling Methods 0.000 abstract description 2
- 238000002386 leaching Methods 0.000 abstract 1
- 238000005070 sampling Methods 0.000 description 16
- 238000012545 processing Methods 0.000 description 8
- 230000000857 drug effect Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000004321 preservation Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000001802 infusion Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010059866 Drug resistance Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J3/00—Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms
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- Cookers (AREA)
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Abstract
The invention belongs to medical device field, a kind of intelligent cooking pot for herbs, including cooking pot for herbs, heater, temperature sensor and controller are specifically disclosed.The kettle bottom fitting temperature sensor of cooking pot for herbs, heater is built-in with the power model adjusted for firepower.Controller, which is obtained, decocts formula, and leaching medicine, heating and decoction operation are carried out successively based on formula is decocted.The setting value of the measured value for the kettle temperature that controller is detected based on temperature sensor and the temperature obtained from formula is decocted is handled, generate control signal controlling power module, change the size of heater firepower, the measured value of kettle temperature is set to reach setting value, it has been performed until decocting formula, has completed the decoction of Chinese herbal medicine.In whole decoction process, controller regulates and controls the firepower of heater, heats cooking pot for herbs, decocts Chinese herbal medicine, is participated in without user, and user whether there is technical ability of boiling medicine, can decoct out the decoction of high-drug-effect.
Description
Technical Field
The invention relates to a medicine decocting device, in particular to an intelligent medicine decocting pot which can automatically decoct Chinese herbal medicines and is composed of a medicine decocting pot and a heating device, and belongs to the field of medical equipment.
Background
The traditional Chinese medicine has small side effect, is not easy to form drug resistance, and can treat both symptoms and root causes. With the development of society and the improvement of health consciousness of people, more and more patients favor the traditional Chinese medicine to treat diseases. The efficacy of the traditional Chinese medicine liquid depends on whether the decocting method is suitable or not, namely how to master the duration and control the time; different Chinese herbal medicine prescriptions often need decocting methods matched with the Chinese herbal medicine prescriptions, even traditional Chinese medicine personnel often need experience accumulation for many years to decoct liquid medicine with high drug effect. Patients usually decoct by themselves after taking back the Chinese herbal medicines, for example, on a gas stove and an induction cooker, the patients need to continuously adjust firepower, mainly to prevent overflow and decoction, and to consume a great deal of energy and time; and because the control of firepower and decoction time is not known, the efficacy of the decoction is improved, so that the efficacy of the decocted decoction is not high. Therefore, there is a need to develop a decocting device, which can obtain a decocting program corresponding to the prescription of traditional Chinese medicine during decocting, and automatically infuse, heat, decoct and cool the traditional Chinese medicine according to the decocting program, so that the traditional Chinese medicine can be decocted intelligently, and patients do not need to participate in the decocting device.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a decocting device which is used for sequentially soaking, heating, decocting and cooling Chinese herbal medicines based on a decocting program, and automatically decocting the Chinese herbal medicines without participation of patients.
The invention discloses an intelligent medicine decocting pot, which mainly comprises a medicine decocting pot and a heating device, and is characterized in that:
the medicine decocting pot comprises a pot body and a pot cover, wherein the pot body comprises a pot bottom and a pot body, the pot bottom is provided with a temperature measuring hole, the top of the pot body is provided with a pot opening, and the pot cover and the pot opening are covered;
the kettle also comprises a temperature sensor for detecting the temperature at the bottom of the kettle, and the temperature sensor is assembled with the temperature measuring hole;
the heating device comprises an electric heating body, a heat insulation part and a power module, the medicine decocting pot is fixed with the heating device, and the electric heating body is positioned between the bottom of the pot and the heat insulation part;
the device further comprises a controller for decoction control, wherein the controller acquires a decoction program corresponding to the decoction requirement of the decocted Chinese herbal medicine, and the decoction program is configured with a set value of temperature related to time; in each control period, the controller acquires a set temperature value from the decoction program by adopting an interpolation method, processes the set temperature value and the measured kettle temperature value detected by the temperature sensor, generates a control signal to operate the power module, and adjusts the firepower of the heating device so that the measured kettle temperature value reaches the set temperature value until the decoction program is executed, thereby finishing the decoction of the Chinese herbal medicines.
The intelligent medicine decocting pot comprises a medicine decocting pot and a heating device, and is configured with a temperature sensor and a controller. The bottom of the medicine decocting pot is provided with a temperature measuring hole, and the temperature sensor is assembled with the temperature measuring hole to measure the temperature at the bottom of the pot; the heating device is internally provided with an electrothermal body and a power module. When decocting the Chinese herbal medicine, the controller obtains a decoction form corresponding to the decoction requirement of the Chinese herbal medicine prescription. The controller carries out operations of medicine soaking, temperature rising, decoction and temperature lowering in sequence based on the decoction program. The controller collects a detection signal of the temperature sensor, obtains a measured value of the kettle temperature, obtains a set value of the temperature from the decoction program by using an interpolation method, performs operation processing based on the measured value and the set value of the kettle temperature to generate a control signal to operate the power module, and adjusts the firepower of the heating device to enable the measured value of the kettle temperature to reach the set value until the decoction program is executed, so that the decoction is completed, and a patient does not need to participate.
In the specific implementation process, the intelligent medicine decocting pot also has the following further preferable technical scheme.
Preferably, the decoction regimen comprises a schedule;
the program table is configured with set values of temperature associated with time, and comprises a plurality of program steps, which form a medicine soaking stage, a temperature rising stage and a decoction stage which are necessary in the decoction process of the Chinese herbal medicines; the program step is composed of a time setting value and a temperature setting value.
Preferably, the decoction regimen further comprises regimen parameters including temperature offset values for correcting temperature control deviations of the kettle temperature;
during each control cycle, the measured value of the kettle temperature is brought to the sum of the set value of the temperature obtained from the cooking profile and the temperature deviation value.
Preferably, the temperature measuring holes are arranged along the radial direction, the temperature measuring holes extend inwards from the edge part of the bottom of the kettle and are terminated in the middle of the bottom of the kettle, the temperature sensor adopts a thermocouple, and the measuring end of the thermocouple is attached to the blind end part of the temperature measuring holes to detect the temperature in the middle of the bottom of the kettle.
Preferably, the temperature measuring holes are arranged along the axial direction, extend upwards from the bottom end face of the kettle bottom and are terminated at the upper end face side of the kettle bottom, the temperature sensor is a thermocouple, and the measuring ends of the thermocouple are attached to the blind end of the temperature measuring holes; or,
the temperature sensor is an infrared temperature sensor, the infrared temperature sensor is arranged below the heat insulation part, and the detection end part of the infrared temperature sensor is right opposite to the blind end part of the temperature measurement hole;
preferably, the temperature measuring hole is arranged at the center of the bottom of the kettle.
Preferably, the overflow device also comprises an overflow sensor for detecting the overflow state of the medicine decocting pot.
Preferably, the controller collects a detection signal of the overflow sensor, and the controller generates a control signal to operate the power module to reduce the heating power of the heating device until the overflow state is eliminated when it is determined that the overflow state occurs based on the detection signal of the overflow sensor.
Preferably, the controller collects a detection signal of the overflow sensor, and when it is determined that the overflow state occurs, the controller decreases a set value of a temperature deviation value in the decocting course or/and decreases a set value of a temperature of a course step corresponding to the occurrence of the overflow in the decocting course, based on the detection signal of the overflow sensor, to decrease the heating power of the heating apparatus until the overflow state is eliminated.
Preferably, the top of the kettle body part is provided with a flanging part which extends upwards and surrounds the kettle body part in the circumferential direction, and the flanging part is positioned outside the kettle opening and used for collecting liquid overflowing in the decocting process.
Preferably, the overflow sensor is a thermocouple fixed with the flanging part, and the detection end of the thermocouple is positioned on the inner side of the flanging part and opposite to the overflow hole on the kettle cover; or,
the overflow sensor is an ultrasonic sensor or a photoelectric sensor for detecting foam, is arranged above the medicine decocting pot, and the detection end part of the overflow sensor is opposite to a window arranged on the pot cover.
The intelligent medicine decocting pot comprises a medicine decocting pot and a heating device, and is provided with a temperature sensor and a controller. The medicine decocting pot comprises a pot body and a pot cover, wherein the pot body is composed of a pot bottom and a pot body, the pot bottom is provided with a temperature measuring hole, the top of the pot body is provided with a pot opening, and the pot cover and the pot opening are mutually covered. The temperature sensor is assembled with the temperature measuring hole and used for measuring the temperature at the bottom of the medicine decocting pot. The heating device is internally provided with an electric heating body, a heat insulation part and a power module. The power module is used for controlling the fire power of the electric heating body. The medicine decocting pot is arranged on the heating device and fixed mutually, and the electric heating body is positioned between the pot bottom and the heat insulation part and heats the pot bottom of the medicine decocting pot. The controller is embedded in the heating device and positioned outside the heat insulation part for decoction control. When the Chinese herbal medicines are decocted, the controller acquires a decoction form which meets the decoction requirement of the prescription of the decocted Chinese herbal medicines, and the medicine soaking, heating, decocting and cooling are sequentially controlled according to the decoction form. Based on the decoction program, in each control/sampling period, the controller collects the measured value of the kettle temperature detected by the temperature sensor and obtains a set value of the temperature from the decoction program, carries out operation processing based on the measured value of the kettle temperature and the set value of the temperature to generate a control signal, operates a power module of the heating device, adjusts the firepower of the heating device so as to enable the measured value of the kettle temperature to reach the set value of the temperature, and finishes the decoction of the Chinese herbal medicines until the decoction program is executed. In the decocting process of the Chinese herbal medicines, the controller controls the power module based on the decocting program to control the heating device to generate required firepower, does not need participation of a user, and can be used for decocting the Chinese herbal medicine decoction with high drug effect if the user has decocting knowledge and skill. In addition, the temperature sensor measures the temperature at the center of the bottom of the kettle, and the position is the position of the symmetrical axis of the medicine decocting kettle, so that the actual temperature of the medicine decocting kettle can be reflected, and the accuracy of temperature detection is improved.
Advantageous effects
The Chinese herbal medicines are decocted automatically, the medicine effect of the liquid medicine is high, and users do not need to participate in the medicine. The intelligent medicine decocting pot comprises a medicine decocting pot and a heating device, and is configured with a temperature sensor and a controller. The bottom of the medicine decocting pot is provided with a temperature measuring hole, and the temperature sensor is assembled with the temperature measuring hole. The heating device comprises an electric heating body, a heat insulation part and a power module. The medicine decocting pot is placed on the heating device and fixed with the heating device, and the electric heating body is positioned between the bottom of the pot and the heat insulation part. When the Chinese herbal medicines are decocted, the controller acquires a decoction form corresponding to the decoction requirement of the prescription of the decocted Chinese herbal medicines, and the operations of medicine soaking, temperature rising, decoction and temperature lowering are sequentially carried out on the basis of the decoction form. In each control period, the controller collects a measured value of the kettle temperature detected by the temperature sensor and obtains a set value of the temperature from the decocting program, the calculation processing is carried out based on the measured value and the set value of the kettle temperature, a control signal is generated to control the power module, the firepower of the heating device is adjusted, the measured value of the kettle temperature detected by the temperature sensor reaches the set value until the decocting program is executed, the decocting of the Chinese herbal medicines is completed, in the whole decocting process, the controller adjusts the firepower of the heating device and the firepower duration time based on the decocting program, the participation of a user is not needed, and the user can be used for decocting the Chinese herbal medicine decoction with high efficacy without decocting knowledge and skill.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent medicine decocting pot.
Fig. 2 is a schematic structural view of a medicine decocting pot.
Fig. 3 is an exploded view of the drug decocting pot.
Fig. 4 is a schematic view of an application state of the medicine decocting pot.
Fig. 5 is a schematic view of another application state of the medicine decocting pot.
FIG. 6 is a functional block diagram of a controller.
Wherein, 100-decocting pot, 110-pot body, 111-pot bottom, 112-pot body, 113-pot mouth, 114-flanging part, 115-temperature measuring hole, 116-fixing hole, 117-plug, 118-elastic element, 120-pot mouth, 130-pot cover, 131-cover body part, 132-handle part, 133-flange part, 134-overflow hole, 135-window, 140-handle, 150-thermocouple and 160-overflow sensor;
200-heating means, 210-electro-thermal body, 220-insulation, 230-power module, 240-housing;
300-controller, 310-key module, 320-display screen.
Detailed Description
In order to clarify the technical solution and technical object of the present invention, the present invention will be further described with reference to the accompanying drawings and the detailed description. The directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the movement, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
An intelligent medicine decocting pot of the present embodiment, as shown in fig. 1 and 6, includes a medicine decocting pot 100, a heating device 200, and a controller 300. The decocting pot 100 includes a pot body 110, a pot lid 130, a temperature sensor 150, and an overflow sensor 160. The kettle body 110 comprises a kettle bottom 111 and a kettle body 112, wherein the kettle bottom 111 is provided with a temperature measuring hole 115 which is arranged along the radial direction. The top of the pot body part 112 is provided with a pot opening 113, and the pot cover 130 is covered with the pot opening 113. The temperature sensor 150 is a thermocouple, which is assembled with the temperature measuring hole 115 and is used for measuring the temperature of the bottom 111 of the medicine decocting pot 100. The heating device 200 incorporates an electrothermal body 210, a heat insulating part 220, and a power module. The power module is used to control the amount of fire of the electro-thermal body 210. The decocting pot 100 is placed on the heating device 200 and fixed, and the heating device 200 heats the decocting pot 100 to decoct the Chinese herbal medicine. The controller 300 is embedded in the housing 240 of the heating device 200 for controlling decocting, including soaking and decocting. When decocting the Chinese herbal medicine, the controller 300 acquires a decoction form according with the decoction requirement of the prescription of the decocted Chinese herbal medicine, and sequentially performs medicine soaking, temperature rising, decoction and temperature lowering according to the decoction form. Based on the decocting program, in each control cycle, the controller 300 collects the detection signal of the thermocouple, obtains the measured value of the pot temperature, obtains the set value of the temperature from the decocting program by using a linear interpolation method, performs operation processing based on the measured value of the pot temperature and the set value of the temperature, generates a control signal to control the power module, changes the electric power transmitted to the electric heating body 210, adjusts the firepower of the heating device so that the measured value of the pot temperature reaches the set value of the temperature, and finishes the decocting of the Chinese herbal medicines until the decocting program is executed. In the decocting process of the Chinese herbal medicines, the controller controls the power module based on the decocting program, adjusts the firepower of the heating device, does not need the participation of a user, and can be used for decocting the Chinese herbal medicine decoction with high drug effect if the user has decocting knowledge and skill.
Medicine decocting pot 100
The medicine decocting pot 100, as shown in fig. 2-4, includes a pot body 110, a spout 120, a pot lid 130, a handle 140, a temperature sensor 150, an overflow sensor 160, and a terminal 170.
The kettle body 110, as shown in fig. 3, includes a circular kettle bottom 111 and a kettle body 112, wherein the kettle bottom 111 and the kettle body 112 are fixed to form a container with an open top for containing liquid. The kettle bottom 111 and the kettle body 112 are integrally formed. The top of the pot body part 112 is provided with a boss extending inwards from the inner surface, and the step surrounds a circle to form a pot opening 113 along the horizontal plane direction. The top of kettle body portion 112 sets up the turn-ups portion 114 that upwards extends and lean out, and turn-ups portion 114 encircles a week along the top of kettle body portion, and this turn-ups portion 114 is located the outside side of hu kou 113 for collect the liquid that the decocting process spills over from hu kou 113, avoid overflowing liquid unrestrained, in order to influence the drug effect not enough. The burring portion 114 is provided with a fixing hole for fixing the overflow sensor, as shown in fig. 4. The spout 120 is a housing having a passage for fluid to flow through, the diameter of the passage gradually decreasing from the inlet end to the outlet end of the spout. The inlet end of the spout 120 is fixed to the body 112 and is located at the upper middle part of the body 112, and the spout 120 is communicated with the body 112 to facilitate pouring of the liquid medicine. The handle 140 has an ear shape, and a cavity 141 for mounting the terminal 170 is formed in the handle 140. The handle 140 is secured to the body 112 on the opposite side of the spout 120. A temperature measuring hole 115 for temperature detection is arranged in the kettle bottom 111. The temperature measuring holes 115 are arranged along the radial direction, the temperature measuring holes 115 extend inwards from the edge of the bottom of the kettle along the radial direction and end at the middle part of the bottom of the kettle, and the blind end part of the temperature measuring holes 115 is positioned at the center of the bottom of the kettle. The free end part of the temperature measuring hole 115 is provided with a fixing hole 116 for assembling a plug, and the fixing hole 116 and the temperature measuring hole 115 are coaxial and are positioned at the edge part of the kettle bottom 111.
The pot lid 130, as shown in fig. 3, includes a lid portion 131 and a handle portion 132, which are disc-shaped and have an upper arch shape, and the top of the handle portion 132 and the top of the lid portion 131 are fixed to each other. The edge of the bottom surface of the cover 131 is provided with a flange 133, and the flange 133 surrounds the periphery. The outer diameter of the flange 133 matches the inner diameter of the spout 113. The cover portion 131 is provided at an edge thereof with an overflow hole 134, and the overflow hole 134 is arranged in a radial direction. The overflow hole 134 is located above the flange 133. The overflow hole 134 is used for liquid overflow and backflow in the pot body, and for the overflow sensor 160 to more accurately detect the overflow state of the decocting pot.
The pot body 110, the pot nozzle 120, the pot cover 130 and the handle 140 are made of ceramics or porcelain. Because the traditional Chinese medicine decoction does not have chemical reaction with ceramics and porcelain, no harmful substances are generated in the traditional Chinese medicine decoction, and the high efficacy is kept. It should be noted that, metal material such as stainless steel can also be used, but the inner part of the inner container is required to be made of porcelain layer to isolate the traditional Chinese medicine liquid and metal, so as to avoid chemical reaction between the liquid and metal, reduce drug effect and generate harmful substance.
Wherein, the temperature sensor 150 is a thermocouple for measuring temperature. The measuring end (i.e., the temperature measuring point) of the thermocouple is packaged at one end thereof. The thermocouple is inserted into the temperature measuring hole 115, and the measuring end of the thermocouple is attached to the blind end of the temperature measuring hole 115 and used for detecting the temperature of the middle of the bottom of the kettle. The spring and the plug 117 which form the elastic part 118 are sequentially assembled in the fixing hole 116, the plug 117 is fixed with the fixing hole 116, the thermocouple, the elastic part 118 and the plug 117 are sequentially attached, and the spring 118 is in a compressed state, so that the measuring end of the thermocouple and the blind end part of the temperature measuring hole 115 are tightly attached, and the bottom temperature of the kettle can be more accurately detected.
It should be noted here that the temperature measuring hole 115 can also be arranged along the axis of the kettle body. The temperature measuring hole 115 extends upwards from the bottom end face of the kettle bottom 111 and is terminated at the upper end face of the kettle bottom, the temperature measuring hole 115 is positioned below the upper end face, the thermocouple for temperature measurement is assembled with the temperature measuring hole 115, and the measuring end of the thermocouple is attached to the blind end of the temperature measuring hole. In addition, the temperature sensor 150 may also be an infrared temperature sensor, the infrared temperature sensor is disposed below the heat insulating portion 220 and located right below the detection hole in the middle of the heat insulating portion 220, and the detection end of the infrared temperature sensor is opposite to the blind end of the temperature measurement hole through the detection hole. Further, the temperature measuring hole 115 is arranged at the center of the bottom of the kettle and is coaxial with the bottom of the kettle. The temperature sensor 150 measures the temperature at the center of the bottom 111 of the kettle, which is the position of the symmetry axis of the medicine decocting kettle 100, and can reflect the real temperature of the medicine decocting kettle 100, which is beneficial to improving the accuracy of temperature detection.
Wherein, the overflow sensor 160 is a thermocouple. The thermocouple is assembled and fixed with the fixing hole of the flange part 114, and the sensing end of the thermocouple is positioned at the inner side of the flange part 114 and is just opposite to the overflow hole 134 of the pot lid 130. It can be understood that when the kettle cover 130 is covered, the overflow hole 134 of the kettle cover 130 and the detection end of the thermocouple for overflow detection need to be opposite, so that the overflow state of the medicine decocting kettle can be detected more timely. With this arrangement, when the kettle 100 overflows, the liquid in the kettle 100 first flows out of the overflow hole 134, and the detection end of the thermocouple can timely contact the overflowing liquid. When the thermocouple touches the overflowing liquid, the temperature of the detection end part of the thermocouple changes suddenly, and a sudden change step is formed on a temperature curve detected by the thermocouple, so that the overflow state of the medicine decocting pot 100 can be judged. Therefore, the overflow state of the decocting pot can be detected by the thermocouple, but the overflow state can be detected only after the liquid in the decocting pot overflows.
The temperature sensor 150 and the overflow sensor 160 are electrically connected to a connection terminal 170 disposed in the handle 140 through wires, respectively, and the connection terminal 170 is electrically connected to the controller 300 through a signal line.
Heating device 200
The heating apparatus 200, as shown in fig. 1, includes an electric heating element 210, a heat insulating part 220, a power module 230, and a case 240. The power module 230 is used for controlling the electric power supplied to the electrothermal body 210, adjusting the heating power of the electrothermal body 210, and controlling the heating power of the heating device. The electric heating body 210, the heat insulation part 220 and the power module 230 are arranged in the shell 240, the electric heating body 210 is fixed with the bottom of the shell 240 through a ceramic bracket, the heat insulation part 220 is arranged between the electric heating body 210 and the bottom of the shell 240 and wraps the electric heating body 210, so that the electric heating body 210 can only radiate heat upwards to heat the medicine decocting pot. The electric heating element 210 may be a resistance heating element, such as a resistance wire, or an electromagnetic induction heating element, such as an induction coil and a magnetic metal body.
Controller 300
The controller 300, as shown in fig. 6, includes a microprocessor, a memory, a sensor circuit, a network module, a display interface module, a key interface module, and a power driving circuit. The memory, the sensor circuit, the network module, the display interface module, the key interface module and the power driving circuit are respectively and electrically connected with the microprocessor. The display screen 330 is electrically connected with the controller 300 through the display interface module; a mobile terminal, such as a mobile phone, a tablet computer, etc., establishes a communication connection with the controller 300 via a network module (router); the temperature sensor 150 and the overflow sensor 160 are respectively and electrically connected with the controller 300 through sensor circuits; the key module is electrically connected to the controller 300 via the key interface module. The key module, the display screen and the mobile terminal form a man-machine interaction interface of the intelligent medicine decocting pot. The key module 320 is mounted on the front panel of the housing 240 of the heating apparatus 200. The key module 320 is provided with an ignition key, a flameout key, an increase key, a decrease key and an acknowledgement key, and the application software interface of the mobile terminal is also provided with an ignition key, a flameout key, an increase key, a decrease key and an acknowledgement key, which are used for manually operating the decocting pot to ignite, flameout, increase firepower, decrease firepower and modify the decocting program.
Decoction modality
The decoction form comprises a form table and form parameters. The program table includes a temperature setting value associated with time, and a data table composed of the time setting value and the temperature setting value. The program table comprises a plurality of program steps which form a medicine soaking stage, a temperature rising stage, a decocting stage and a temperature reducing stage required in the decocting process. The time setting in the program table will continue to the whole decoction cycle, covering drug infusion, temperature rise, decoction, and finally flameout. The programming parameters include one, two or more parameters, and the programming parameters are associated with a programming table, and are used in conjunction with the programming table, such that modifying the programming parameters optimizes the control of the controller 300 over the cooking process. The cooking program is stored in the memory of the controller 300. A user or a pharmacist with Chinese herbal medicine knowledge and decoction skills can modify and define the required decoction program by himself through a mobile terminal, a key module and other human-computer interaction interfaces, and the modified decoction program can be stored in a memory. A program table and program parameters for an alternative decoction program are shown below, wherein the program table comprises 7 program steps including the settings for "" temperature "" and "" time "".
A program table:
program parameters:
incubation temperature (/ ° c): 50;
temperature offset value (/ deg.C): 5;
temperature control tolerance (/%): 2
Sampling period (/ s): 10.
the "program table" includes "temperature" and "time". Wherein "temperature" means the temperature to be reached at the bottom of the kettle during the decoction process, optionally the temperature to be reached at the inner surface of the kettle bottom. The time represents that the temperature is gradually changed from the set value of the temperature in the previous program step to the set value of the temperature in the program step in the time period of the program step, can be selected as a slope change and is suitable for describing the speed of the change of the temperature, such as the speed and the speed of the temperature rise of the decoction; it should be noted that, for the 1 st program step, the set value of the temperature of the last program step is understood as the temperature of the bottom of the kettle detected by the thermocouple before heating, and can also be understood as the set value of the temperature of the 1 st program step; for the former understanding, a further program step for increasing the temperature is required before the program step 1, and the temperature setting value of the program step is the same as that of the program step 1.
The program parameters include a temperature keeping temperature, a temperature deviation value, a temperature control tolerance and a sampling period. The 'heat preservation temperature' represents the temperature at which the liquid medicine needs to be maintained after the Chinese herbal medicines are decocted so as to make the liquid medicine suitable for taking. The temperature deviation value represents a correction parameter for correcting the temperature control deviation of the kettle temperature, and is used for correcting the deviation of the kettle temperature controlled by the temperature sensor relative to the temperature set value, so that the heated temperature of the medicine decocting kettle is consistent with the expected set temperature. Factors that cause temperature control deviation of the temperature sensor include: position of detecting hole, kettleThe size of the bottom thermal resistance, the difference of the temperature sensors, the assembly deviation of the temperature sensors, the difference of the medicine decocting pot (such as thickness, thinness and material), and the like. The measured value of the kettle temperature detected by the temperature sensor is numerically matched with the sum of the set value of the temperature obtained from the program table and the temperature offset value, so that the temperature at which the kettle is heated reaches the set value of the temperature and reaches the desired temperature. For example, the expected temperature of the inner surface of the bottom of the decocting pot is 100 ℃, the set value of the temperature is 100 ℃, since the temperature sensor is arranged in the detection hole positioned below the inner surface of the bottom of the pot, the thermal resistance existing between the inner surface of the bottom of the pot and the detection hole is large, when the detection temperature of the temperature sensor is 100 ℃, the temperature of the inner surface of the bottom of the pot is less than 100 ℃, the temperature may be 98 ℃, the set temperature is not reached, namely, the temperature deviation is 2 ℃, and the temperature deviation can be corrected by a temperature deviation value, and the temperature deviation value is set to be 2 ℃. In this state, the set value of the temperature is 100, the offset value of the temperature is 2 ℃, the temperature detected by the temperature sensor is 102 ℃, and when the temperature detected by the temperature sensor reaches 102 ℃, the temperature of the inner surface of the bottom of the kettle reaches 100 ℃, namely the desired temperature. In addition, the temperature offset value can also be used to adjust the temperature setting in the decocting recipe, for example, the temperature offset value is increased by 2 ℃, which is equivalent to the temperature setting of each recipe step in the decocting recipe is increased by 2 ℃. The set value of the temperature deviation value is modified, so that the same program table can be suitable for the decocting pots with different thicknesses and different materials, and the assembling deviation of the temperature sensor and the difference of the temperature sensor can be modified, so that the program table is suitable for the decocting pots. For example, when the thermocouple is replaced, the thermal condition of the decocting pot changes due to the difference and assembly deviation of the thermocouple, and the decocting pot needs to be adjusted before use, so that the program table is suitable for the decocting pot under the new working condition. An alternative way of tuning, e.g. at a certain temperature set point T0A lower heating medicine decocting pot, a first-grade temperature measuring meter is adopted to measure the temperature value T of the inner surface of the bottom of the pot1Adjusting the heating power of the heating device to T1And T0And at this time, the measured value of the pot temperature detected by the thermocouple is Tc,the measured value Tc and the set value T of the kettle temperature0The difference therebetween is used as the initial set point of the temperature offset value. The temperature control tolerance represents the fluctuation range of the temperature measurement value of the decocting pot relative to the controlled target temperature; for example, a temperature control tolerance of 2% represents a relative value of 2% for the maximum deviation of the fluctuation range between the measured value of the kettle temperature (i.e., the controlled target temperature) and the temperature set point allowed by the controller, such as: if the set value of the temperature is 100 ℃ and the temperature control tolerance is 2%, the measured value of the kettle temperature (namely the controlled target temperature) is 98-102 ℃, and the measured value of the kettle temperature is considered to be equivalent to the set value of the temperature, namely the measured value of the kettle temperature reaches the set value. The relative values of the temperature deviations are defined herein as: the relative value of the temperature deviation is ABS (measured value of temperature-set value of temperature)/set value of temperature 100%. The "sampling period" represents the time interval between the controller obtaining the set point of the temperature from the program table and the measured value of the kettle temperature from the thermocouple, i.e., how often the controller exercises control over the intelligent drug decocting kettle. The smaller the sampling period is set, the more accurate the control is.
Next, the operation flow of the intelligent decocting pot of the present embodiment for decocting Chinese herbal medicine, the automatic decocting principle and the control process will be respectively described as follows, taking the above-mentioned decocting program (without setting the temperature deviation parameter) as an example.
Operation method of intelligent medicine decocting pot
S1: putting the Chinese herbal medicines into a kettle. The lid 130 of the decocting pot 100 is opened, the prepared Chinese herbal medicine is put into the decocting pot, and the lid is closed.
S2: and selecting a decoction program. The controller 300 reads the decocting program from the memory by selecting the decocting program matched with the prescription requirement of the Chinese herbal medicine to be decocted through the key module or the mobile terminal.
S3: and (5) igniting and decocting. The controller 300 is configured with both "automatic" and "manual" decocting modes, with the "manual" decocting mode being the default. Selecting an 'automatic' decocting mode, pressing an 'ignition' key, and operating the heating device 200 to ignite instantly by the controller 300 or operating the heating device to ignite by time driving (namely, a reserved mode); the heating device 200 generates heat to heat the decocting pot 100. The controller 300 sequentially performs medicine infusion, temperature rise, decoction, and temperature reduction according to the decoction program. In each control period, the controller collects the measured value of the kettle temperature detected by the temperature sensor and obtains a set value of the temperature from the decoction program, carries out operation processing based on the measured value of the kettle temperature and the set value, generates a control signal to control the power module, adjusts the firepower of the heating device, enables the measured value of the kettle temperature detected by the temperature sensor to reach the set value until the decoction program is executed, and completes the decoction of the Chinese herbal medicines. The whole decocting process is automatically completed by the controller, and users do not need to participate.
S4: and finishing the decoction. The time of the decoction process is completed by the controller 300, and the decoction process is completed to complete the decoction of the Chinese herbal medicine. The controller 300 generates a control signal to trigger the boomer to give an alarm, and informs a user to take liquid medicine. If the heat preservation function is not selected, the controller 300 generates a control signal to operate the power module to block the current circulation and close the heating device 200; if the heat preservation function is selected, the user does not take the liquid medicine for a long time, the controller 300 operates the heating device 200 to heat the decocting pot 100 according to the set value of the "heat preservation temperature" in the program parameters, so that the measured value of the pot temperature is equivalent to the set value of the heat preservation temperature, and the temperature of the decocted liquid medicine is maintained at the temperature required by the user.
Method and process for decocte control
The decoction regimen includes the schedule and regimen parameters. The program table is a table formed by time and temperature, and comprises a plurality of program steps, and the number of the program steps is determined according to the decocting requirement without specific requirements. The formula table covers the medicine soaking stage, the temperature rising stage, the decocting stage and the temperature lowering stage which are necessary in the decocting process of the Chinese herbal medicines. In order to improve the efficacy of the traditional Chinese medicine liquid, some traditional Chinese medicine prescriptions require normal-temperature medicine infusion, some require medicine infusion within a certain temperature range, some require slow temperature rise to the highest temperature, some require strong fire (with a higher temperature set value) decoction, some require slow fire (with a lower temperature set value) decoction, and the like, which can be realized by the time and temperature set values in a program table. The formulation and modification of the schedule of the decoction form needs to be conducted under the guidance of or by the pharmacist. The program table of the decoction formula in the embodiment exists in a table form, so that parameter modification is very convenient, the corresponding program table is quickly set for different Chinese herbal medicine prescriptions, and the decoction with higher medicine effect is favorably decocted.
The schedule for the decoction program includes 7 program steps. Wherein, the step of the 1 st formula corresponds to the medicine soaking stage, the medicine soaking temperature is 35 ℃, and the medicine soaking time is 30 Min; the 2 nd to 3 rd program steps correspond to the temperature rise stage, the 2 nd program step raises the temperature faster and rises from 35 ℃ to 95 ℃ after 3 minutes, the 3 rd program step raises the temperature slower than the 2 nd program step and rises from 95 ℃ to 105 ℃ after 2 minutes, and the proper temperature rise rate is set, so that the generation of a large amount of foam in the temperature rise stage can be reduced or even avoided, and overflow can be generated; step 4-6, corresponding to the decocting stage, extracting effective components of Chinese herbal medicines, wherein the decocting temperature in step 4 is 105 deg.C, the decocting time is 10Min, the temperature in step 5 is decreased from 105 deg.C to 100 deg.C after 1 Min, the decocting temperature in step 6 is 100 deg.C, and the decocting time is 10 Min; and 7, correspondingly cooling, namely, reducing the temperature from 100 ℃ to 70 ℃ within 5 minutes so that the decocted liquid medicine is cooled at a certain cooling rate. It should be noted that if the prescription of the Chinese herbal medicine does not require the temperature of the decocted liquid medicine to be reduced at a certain rate, the 7 th procedure step may not be set. In each sampling period, the controller 300 obtains the set value of the temperature corresponding to the current control period from the program table by using an interpolation method, and it is understood that the controller 300 divides the time period corresponding to the time set value of the current program step into a plurality of small time segments according to the sampling period, for example, 10s, each small time segment corresponds to one sampling period, and obtains the set value of the temperature corresponding to each sampling period by using the interpolation method according to the set value of the temperature of the previous program step and the set value of the temperature of the current program step. If the value is taken by using the linear internal difference method, the temperature of each program step is changed from the set value of the temperature of the previous program step to the set value of the temperature of the program step in a slope manner, namely the slope change; for the 1 st program step, it is understood that the set value of the temperature in the last program step is the same as the set value of the temperature in the 1 st program step. In addition, the linear interpolation method can be replaced by polynomial interpolation, Newton interpolation or other interpolation methods, so that the temperature between program steps is smoothly and excessively changed instead of the slope change. For example, taking the linear interpolation value of the 2 nd program step as an example, to illustrate how to obtain the set value of the temperature from the program table, assuming that the sampling period is 10s, the 9 th control/sampling period of the 2 nd program step, i.e. the 90 th s, corresponds to 1 minute 30 seconds of the 2 nd program step, and the set value of the temperature obtained from the 2 nd program step in the 9 th control period is 65 ℃ by using the linear interpolation method.
In the automatic decocting process, the controller 300 sequentially executes each program step of the program table based on the obtained decocting program, controls the power module 230 to change the electric power transmitted to the electric heating body, adjusts the fire power of the heating device 200, heats the decocting pot 100 to make the measured value of the pot temperature reach the set value of the temperature, sequentially performs the operations of soaking, heating, decocting and cooling, and automatically decocts the Chinese herbal medicine until the program table is sequentially executed, thereby completing the decocting of the Chinese herbal medicine.
In the automatic decocting process, the controller 300 first executes the step 1. The 1 st program step is a medicine soaking step, and the controller 300 acquires the set value of the temperature from the 1 st program step based on interpolation method in each control/sampling period, acquires the detection signal of the temperature sensor 150, acquires the measured value of the pot temperature, generates a control signal based on the measured value and the set value of the pot temperature, operates the power module 230, and adjusts the fire power of the heating apparatus 200 so that the measured value of the pot temperature is equivalent to the set value, that is, the set value is reached. After the time of the 1 st program step is executed, the 2 nd program step is executed.
In each control/sampling period of the 2 nd program step, the controller 300 collects the detection signal of the temperature sensor 150 to obtain the temperature measurement value of the kettle, and uses the linear internal difference method to obtain the temperature setting value from the 2 nd program step. The controller 300 compares the acquired measured value of the kettle temperature with the set value of the temperature, when the measured value of the kettle temperature is smaller than the set value of the temperature, the controller 300 generates a control signal by calculation to increase the heating power of the heating device, and sends the control signal to the power module 230, controls the power module 230 to increase the electric power input to the electric heating body, and increases the heating power of the heating device 200 to increase the temperature of the medicine decocting kettle 100 until the acquired measured value of the kettle temperature is equivalent to the set value of the temperature; when the acquired measured value of the kettle temperature is greater than the acquired set value of the temperature, the controller 300 generates a control signal for reducing the heating power of the heating device through calculation, and sends the control signal to the power module 230, controls the power module 230 to reduce the electric power input to the electric heating body, and reduces the heating power of the heating device 200, so that the temperature of the medicine decocting kettle 100 is reduced until the acquired measured value of the kettle temperature reaches the set value of the temperature; thus, according to the sampling period, the above control is performed until the controller 300 finishes the step of the 2 nd program. After the step 2 is executed, the controller 300 sequentially executes the steps 3 to 7 by using the above control method until each step of the program table is executed, thereby completing the decoction of the Chinese herbal medicine.
When the controller 300 performs arithmetic processing on the acquired pot temperature measurement value and the acquired temperature set value to generate a control signal for adjusting the heating power of the heating device, the arithmetic processing method used may be a PI (proportional integral) control algorithm, a PD (proportional derivative) control algorithm, or a PID (proportional integral derivative) control algorithm with higher control accuracy.
When the decoction program is executed by the controller 300, the decoction of the Chinese herbal medicine is completed, at this time, the controller 300 generates a control signal to trigger the alarm to sound, the user is informed, and the decoction can be taken out after the decoction is finished. In the whole decoction process, the user does not need to participate, and the decoction is automatically completed by the intelligent decoction pot.
In the automatic decocting process, in each control/sampling period, the controller 300 further obtains a detection signal of the overflow sensor 160, determines that the decocting pot is in an overflow state based on the detection signal of the overflow sensor 160, generates a control signal including a reduction in the heating power of the heating device by the controller 300, controls the power module 230 to reduce the heating power of the heating device 200, so that the decocting pot 100 eliminates overflow and avoids overflow from continuing; while controller 300 performs overflow counting. When the overflow count is greater than the count threshold, such as the count is greater than 3 times, particularly when a continuous overflow count occurs, the controller 300 also performs the following overflow process.
When the overflow count is greater than the count threshold, the controller 300 compares the temperature setting value corresponding to the control period at which the overflow occurs, which is obtained from the decocting process, with the temperature setting value of the current process step, calculates the difference between the temperature setting value and the temperature setting value of the current process step, and identifies the difference as the 1 st adjustment value. When the acquired temperature setting value corresponding to the control period at the moment of overflow occurrence is lower than the current program step temperature setting value, if the difference between the temperature setting value and the program step temperature setting value is 4-8 ℃, the program step temperature setting value in the program table is over high, at the moment, the controller 300 reduces the temperature deviation value setting value in the program parameters, so that the target temperature of the decocting pot 100 is wholly translated downwards, and the controlled target temperature of the pot is reduced until the overflow occurrence is eliminated; the magnitude of the decrease in the set point of the temperature offset value may be determined based on the 1 st adjustment magnitude, optionally as a fractional magnitude of the 1 st adjustment magnitude, such as 1/3, 1/2, or 2/3 where the magnitude of the decrease is the 1 st adjustment magnitude. When the acquired temperature setting value corresponding to the control cycle at which the overflow occurs is higher than the temperature setting value of the program step, if the difference between the acquired temperature setting value and the temperature setting value of the current program step is 1-3 ℃, that is, the temperature setting value of the control cycle corresponding to the overflow approaches the temperature setting value of the current program step, the controller 300 decreases the temperature setting value of the current program step in the program table, decreases the temperature setting values of the program steps whose temperature setting values are not less than the temperature setting values of the program steps, decreases the temperature setting values and the temperature rising rate, gradually decreases the firepower of the heating device, and decreases until the overflow occurs; the reduction range of the set point of the program step temperature can be determined according to the 1 st adjustment value, such as a partial value of the 1 st adjustment value, whose reduction range is 1/3, 1/2 or 2/3 of the 1 st adjustment value. It should be noted that, after the overflow occurs, the controller 300 may also decrease the set value of the temperature deviation value in the decoction process and the set value of the current process step temperature, in this case, in order to avoid the over-regulation, which results in the kettle temperature being too low, the sum of the decrease of the temperature deviation value and the decrease of the set value of the process step temperature should be smaller than the 1 st regulation value. After the controller 300 modifies the decocting program, the overflow count is processed by rule 0 to recover the value of 0.
After the controller 300 reduces and modifies the set value of the program step temperature or/and the set value of the temperature deviation value of the decocting program, the controller 300 counts the overflow flow again, and when the overflow count is larger than the counting threshold, the controller 300 modifies the decocting program again according to the method, and the cycle of the adjustment is repeated until the decocting program is executed, and the decocting of the Chinese herbal medicine is completed. After the decoction is completed, the user can save the decoction program modified by the controller 300 for the next use.
In addition, it should be noted that: the overflow sensor 160 may also be an ultrasonic sensor or a photoelectric sensor, which is used to detect the foam and the foam height on the liquid surface in the decocting pot, and can detect the overflow state that the decocting pot will overflow and will not overflow, so as to avoid overflow. The overflow sensor 160 is fitted with a drug-decocting pot, as shown in fig. 4, which detects that the end is directly opposite to a window 135 in the lid 130, through which window 135 foam generated in the drug-decocting pot can be detected. When the liquid in the decocting pot 100 is heated to boiling, the liquid surface generates and gathers foam, when the height of the foam reaches a set height threshold, if the top end surface of the foam contacts the pot lid, the overflow tendency is generated, and the possibility of overflow is generated, the controller 300 judges that the overflow state is generated, generates a control signal for reducing the firepower of the heating device, and controls the power module 230 to reduce the firepower of the heating device 200, so that the foam generated in the decocting pot 100 is reduced until eliminated, and the overflow is avoided. While controller 300 performs overflow counting.
It should be noted that, if the "temperature deviation value" parameter is adopted, in the process of automatically decocting the Chinese herbal medicines, the controller sequentially executes each program step of the decocting program, and in each control period, the controller compares the measured value of the kettle temperature with the sum of the set value of the temperature obtained from the decocting program and the temperature deviation value, and based on the measured value of the kettle temperature and the sum of the obtained set value of the temperature and the temperature deviation value, performs calculation processing to generate a control signal to adjust the fire power of the heating device, so that the measured value of the kettle temperature reaches the sum of the set value of the temperature obtained from the decocting program and the temperature deviation value, until the decocting program is executed by the controller, and the decocting of the Chinese herbal medicines is completed.
The intelligent drug decocting pot of the embodiment comprises a drug decocting pot and a heating device, and is configured with a temperature sensor, a controller and a decocting program arranged in the controller. The medicine decocting pot comprises a pot body and a pot cover, wherein the pot body comprises a pot bottom and a pot body, the pot bottom is provided with a temperature measuring hole, the top of the pot body is provided with a pot opening, and the pot cover and the pot opening are mutually covered. The temperature sensor is assembled with the temperature measuring hole and used for measuring the temperature at the bottom of the medicine decocting pot. The heating device is internally provided with an electric heating body, a heat insulation part and a power module. The power module is used for controlling the electric power supplied to the electric heating body so as to adjust the firepower of the heating device. The medicine decocting pot is arranged on the heating device and fixed mutually, the electric heating body is positioned between the bottom of the pot and the heat insulation part, and the electric heating body only radiates heat to the bottom of the medicine decocting pot. The controller is embedded in the heating device, is positioned outside the heat insulation part, is thermally insulated from the electric heating body and is used for decoction control. When the Chinese herbal medicines are decocted, the controller acquires a decoction form which meets the decoction requirement of the prescription of the decocted Chinese herbal medicines, and medicine soaking, temperature rising, decoction and temperature lowering are sequentially carried out according to the decoction form. Based on the decoction program, in each control/sampling period, the controller collects the measured value of the kettle temperature detected by the temperature sensor and obtains a set value of the temperature from the decoction program by using an interpolation method, and performs operation processing based on the measured value of the kettle temperature and the set value of the temperature, such as PI (proportional integral) control algorithm, PD (proportional derivative) control algorithm or PID (proportional integral derivative) control algorithm with higher control precision, to generate a control signal, operate the power module, change the electric power transmitted to the electric heating body, and adjust the firepower of the heating device, so that the measured value of the kettle temperature reaches the set value of the temperature until the decoction program is executed, thereby completing the decoction of Chinese herbal medicines. In the decocting process of the Chinese herbal medicines, the controller controls the power module based on the decocting program, adjusts the heating device to generate firepower with required size, does not need the participation of users, and can be used for decocting the Chinese herbal medicine decoction with high drug effect if the users have decocting knowledge and skill. In addition, the measuring end part of the thermocouple is arranged at the central part of the bottom of the kettle, the central part is the symmetrical center of the decocting kettle, the temperature at the center of the bottom of the kettle is detected, the real temperature of the decocting kettle can be reflected, and the accuracy of temperature detection is improved.
The medicine decocting pot is also provided with an overflow sensor. The controller collects a detection signal of the overflow sensor, and when the overflow state of the medicine decocting pot is judged based on the detection signal of the overflow sensor, the controller generates a control signal which reduces the fire power of the heating device, operates the power module, reduces the transmitted electric power, reduces the fire power of the heating device, weakens the overflow until the medicine decocting pot eliminates the overflow. When the overflow count is greater than the count threshold, the controller modifies the decocting program, decreases the set value of the temperature deviation value in the program parameters of the decocting program, decreases the set value of the program step temperature corresponding to the occurrence of overflow in the program table of the decocting program and decreases the temperature set value to be not lower than the set value of the temperature of each program step of the program step, so as to reduce until the occurrence of overflow is eliminated. The overflow state comprises a state that liquid in the kettle overflows and an overflow state that the foam in the kettle reaches a height threshold value and overflow is about to occur and overflow is not performed.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the foregoing description only for the purpose of illustrating the principles of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims, specification, and equivalents thereof.
Claims (10)
1. The utility model provides an intelligence kettle of decocting medicinal herbs, mainly comprises kettle of decocting medicinal herbs and heating device, its characterized in that:
the medicine decocting pot comprises a pot body and a pot cover, wherein the pot body comprises a pot bottom and a pot body, the pot bottom is provided with a temperature measuring hole, the top of the pot body is provided with a pot opening, and the pot cover and the pot opening are covered;
the kettle also comprises a temperature sensor for detecting the temperature at the bottom of the kettle, and the temperature sensor is assembled with the temperature measuring hole;
the heating device comprises an electric heating body, a heat insulation part and a power module, the medicine decocting pot is fixed with the heating device, and the electric heating body is positioned between the bottom of the pot and the heat insulation part;
the device further comprises a controller for decoction control, wherein the controller acquires a decoction program corresponding to the decoction requirement of the decocted Chinese herbal medicine, and the decoction program is configured with a set value of temperature related to time; in each control period, the controller acquires a set temperature value from the decoction program by adopting an interpolation method, processes the set temperature value and the measured kettle temperature value detected by the temperature sensor, generates a control signal to operate the power module, and adjusts the firepower of the heating device so that the measured kettle temperature value reaches the set temperature value until the decoction program is executed, thereby finishing the decoction of the Chinese herbal medicines.
2. The intelligent drug decocting pot of claim 1, wherein:
the decoction program comprises a program table;
the program table is configured with set values of temperature associated with time, and comprises a plurality of program steps, which form a medicine soaking stage, a temperature rising stage and a decoction stage which are necessary in the decoction process of the Chinese herbal medicines; the program step is composed of a time setting value and a temperature setting value.
3. The intelligent drug decocting pot of claim 2, wherein:
the decoction form also comprises form parameters, and the form parameters comprise temperature deviation value parameters for correcting temperature control deviation of the kettle temperature;
during each control cycle, the measured value of the kettle temperature is brought to the sum of the set value of the temperature obtained from the cooking profile and the temperature deviation value.
4. The intelligent drug decocting pot of claim 1, wherein:
the temperature measuring holes are arranged along the radial direction, extend inwards from the edge part of the bottom of the kettle and are terminated in the middle of the bottom of the kettle, the temperature sensor adopts a thermocouple, and the measuring end of the thermocouple is attached to the blind end part of the temperature measuring holes to detect the temperature in the middle of the bottom of the kettle.
5. The intelligent drug decocting pot of claim 1, wherein:
the temperature measuring holes are axially arranged, extend upwards from the bottom end face of the kettle bottom and are terminated on the upper end face side of the kettle bottom, the temperature sensor adopts a thermocouple, and the measuring ends of the thermocouple are attached to the blind ends of the temperature measuring holes; or,
the temperature sensor is an infrared temperature sensor, the infrared temperature sensor is arranged below the heat insulation part, and the detection end part of the infrared temperature sensor is right opposite to the blind end part of the temperature measurement hole;
preferably, the temperature measuring hole is arranged at the center of the bottom of the kettle.
6. The intelligent drug decocting pot of claims 1-5, wherein: the overflow sensor is used for detecting the overflow state of the medicine decocting pot.
7. The intelligent drug decocting pot of claim 6, wherein: the controller collects a detection signal of the overflow sensor, generates a control signal to operate the power module when the overflow state is determined to occur based on the detection signal of the overflow sensor, and reduces the firepower of the heating device until the overflow state is eliminated.
8. The intelligent drug decocting pot of claim 6, wherein: the controller collects a detection signal of the overflow sensor, and when it is determined that an overflow state occurs, the controller decreases a set value of a temperature deviation value in the decocting program or/and a set value of a temperature of a program step corresponding to the occurrence of the overflow in the decocting program, based on the detection signal of the overflow sensor, to decrease the fire power of the heating device until the overflow state is eliminated.
9. The intelligent drug decocting pot of claims 1-6, wherein: the top of kettle body portion sets up the turn-ups portion that upwards extends and encircle a week along circumference, and this turn-ups position is located the outside of kettle mouth for collect the liquid that overflows in the decocte process.
10. The intelligent drug decocting pot of claim 9, wherein:
the overflow sensor is a thermocouple fixed with the flanging part, and the detection end part of the thermocouple is positioned on the inner side of the flanging part and is opposite to the overflow hole positioned on the kettle cover; or,
the overflow sensor is an ultrasonic sensor or a photoelectric sensor for detecting foam, is arranged above the medicine decocting pot, and the detection end part of the overflow sensor is opposite to a window arranged on the pot cover.
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| CN107019640B (en) | 2022-05-24 |
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