WO2022028098A1

WO2022028098A1 - Automatic temperature control method for baking smoking set and baking smoking set thereof

Info

Publication number: WO2022028098A1
Application number: PCT/CN2021/099273
Authority: WO
Inventors: 林光榕; 郑贤彬; 张夕勇
Original assignee: 深圳市康泓威科技有限公司
Priority date: 2020-08-06
Filing date: 2021-06-10
Publication date: 2022-02-10
Also published as: CN112006340A; CN112006340B

Abstract

An automatic temperature control method for a baking smoking set (1) and a baking smoking set (1) thereof. The automatic temperature control method comprises: stage one: raising the temperature to a set working temperature, and then maintaining the working temperature within a set working period of time while determining whether a cigarette (2) is vaped; if the cigarette (2) is vaped, restarting the working period of time and maintaining the working temperature after the vaping is ended; and if the cigarette (2) is not vaped, reducing the heating temperature to a set standby temperature after the working period of time is ended; and stage two: maintaining the standby temperature within a set standby period of time while determining whether a user has an action of preparing for vaping; if the user has the action of preparing for vaping, immediately raising the heating temperature to the working temperature, and returning to stage one; and if the user does not have the action of preparing for vaping, controlling a heating element (R) to stop working and shut down. The method can reduce the power loss of a battery, prolongs the utilization time of the cigarette (2), prevents the cigarette (2) from generating scorched smell or burnt smell, and improves the user experience.

Description

Automatic temperature control method for curing smoking set and curing smoking set

technical field

The present invention relates to the technical field of curing smoking utensils, and more particularly, the present invention relates to an automatic temperature control method for curing smoking utensils and the curing smoking utensils.

Background technique

Curing smoking tools generally include a heating assembly and a battery assembly, the battery assembly is used to control the heating assembly and provide power to the heating assembly. The heating assembly includes a heating element, and the heating element can bake the cigarette with tobacco to emit smoke for the user to smoke. Compared with the smoke produced by the burning of tobacco open fire, the smoke emitted by baking reduces many harmful substances such as tar, carbon monoxide, particulate matter, etc. Therefore, the way of smoking by using the baking tool is welcomed by people.

In most of the existing curing smoking sets, after the user activates the start switch, the heating element heats up to the normal smoking temperature, but thereafter, regardless of whether the user smokes or not, the temperature remains at the smoking temperature, and the battery power consumption is large. In addition, when the user does not smoke, the cigarettes are always in the baking state, and the tobacco in the cigarettes is still in loss, which shortens the time for the cigarettes to be used, and the baking time is long, and the smoke cannot be discharged. When smoking, the tobacco in the cigarette is prone to produce a burnt smell and a sticky smell, causing a bad user experience to the user.

The Chinese invention patent application document with publication number CN111053299A discloses a method, device and electronic smoking device for controlling the heating temperature of an electronic cigarette. Whether there is a smoking action of the electronic cigarette, if there is a smoking action, the heating temperature of the heating element is controlled to reach the first target temperature; if there is no smoking action, the heating temperature of the heating element is controlled to reach the second target temperature, where the second target temperature less than the first target temperature. The advantage is that the heating temperature when not smoking can be reduced, so as to improve the utilization rate of the cartridge and reduce the energy consumption of the battery. FIG. 1 in the accompanying drawings of this specification is a schematic diagram of a heating temperature curve obtained by implementing the method of heating temperature. In fact, the schematic diagram is not accurate, because the method only controls the first target by detecting the suction action, that is, detecting the inspiratory airflow. The temperature and the second target temperature are defective. With this method, when the user puts the pod in his mouth and smokes the pod, the smokeless airflow is generated at the beginning of the inhalation, and the airflow switch is triggered only after there is airflow, which in turn triggers the power supply unit to heat the heating element, and then heats up the temperature. It will definitely take some time, so it is impossible to jump vertically from the second target temperature to the first target temperature. Only when the inhalation of taking a breath is about to end, the heating temperature will rise from the second target temperature to the temperature that can be cured. The first target temperature at which the bomb produces smoke. Therefore, the disadvantage of using this method is that when the suction starts from the second target temperature with a lower temperature, the first half of the mouth is basically unable to draw smoke. After the temperature rises, the second half of the suction is about to end, resulting in The amount of smoke inhaled by the user is very small, and the smoking taste is not good. In addition, the disadvantage of using this method is that if the user smokes continuously and stops smoking for a short time, the first target temperature and the second target temperature will frequently rise and fall, resulting in frequent switching of the power supply unit and the control unit, and the power consumption increases instead. , and work efficiency is reduced.

technical problem

The purpose of the present invention is to provide an automatic temperature control method for a curing tobacco appliance and a curing tobacco appliance thereof in order to overcome the deficiencies of the above-mentioned technologies.

technical solutions

The technical scheme of the present invention is achieved in this way: an automatic temperature control method for curing smoking utensils, comprising:

The first stage: After the heating element is heated to the set working temperature, the working temperature is maintained during the set working time period, and at the same time, it is judged whether the cigarette is smoked. Working time period and maintain working temperature; if it is not pumped, control the heating element after the end of the working time period to reduce the heating temperature to the set standby temperature;

The second stage: within the set standby time period, the standby temperature is maintained, and at the same time, it is judged whether the user is ready to smoke. Go to the first stage; if there is no action to prepare for smoking, control the heating element to stop working and shut down or further reduce the heating temperature to the set second standby temperature after the standby time period ends.

Preferably, it also includes: a third stage: in the second stage, if the heating temperature is lowered to the second standby temperature, the second standby temperature is maintained during the set second standby time period, and at the same time, it is determined whether the user is ready to smoke Action, if there is an action of preparing to smoke, the heating element will be controlled immediately to increase the heating temperature to the working temperature and return to the first stage; if there is no action of preparing to smoke, the heating element will be controlled after the second standby time period ends. Stop working and shut down.

Preferably, it also includes:

In the first stage, the total working time for maintaining the working temperature is accumulated and calculated, and it is judged whether the total working time reaches the set total working time threshold. Stop working and shut down.

Preferably, the method for judging whether the cigarette is smoked is:

By continuously detecting the resistance of the heating element, the resistance change rate is obtained. If the resistance change rate reaches the set resistance change rate threshold, it is judged that the cigarette is smoked, otherwise it is judged that the cigarette is not smoked;

Or continuously detect the distance between the infrared light source and the human body through the infrared detection unit. If the distance value reaches the set distance threshold, it is determined that the cigarette is smoked, otherwise it is determined that the cigarette is not smoked.

Preferably, the method for judging whether the user is ready to smoke is:

The three-dimensional coordinate position change and movement rate of the smoking article are continuously detected by the gravity sensor, and the gesture signal of the movement of the smoking article is obtained. If the gesture signal conforms to the set gesture signal, it is judged that there is an action of preparing to smoke; otherwise, it is judged that there is no action;

Or continuously detect the distance value between the infrared light source and the human body through the infrared detection unit, if the decreasing rate of the distance value reaches the set decreasing rate threshold, it is judged that there is an action of preparing to smoke, otherwise it is judged that there is no action;

Or continuously detect the atmospheric pressure through the pressure sensor, if the change rate of the atmospheric pressure reaches the set threshold value of the air pressure change rate, it is judged that there is an action of preparing to smoke, otherwise it is judged that there is no action.

Preferably, the detection method of the heating temperature is:

By continuously detecting the resistance value of the heating element and according to the corresponding relationship between the resistance value and the temperature of the thermistor, the heating temperature corresponding to the resistance value can be obtained;

Or directly detect the heating temperature through a temperature sensor close to the heating element.

Preferably, the method for setting the working temperature is: setting a working temperature of a fixed value; or setting a working temperature that has a certain functional relationship with a time period.

Preferably, the specific operation steps are also included as follows:

(1) Set relevant parameters on the microcontroller;

(2) Turn on the start switch to start the smoke-curing appliance;

(3) The power unit outputs power to the heating element, and the smoking appliance enters the heating and heating state;

(4) The resistance value detection unit detects the resistance value of the heating element. The microcontroller calculates the heating temperature according to its resistance value, and judges whether the heating temperature reaches the set working temperature. If so, go to the next step, if not, return to the Previous;

(5) When the temperature rise ends, the microcontroller controls the vibration prompting unit to vibrate;

(6) The microcontroller controls the power output of the power unit, so that the heating temperature of the heating element is maintained at the working temperature, the tobacco curing appliance begins to enter the set working time period for smoking, and the timing unit begins to calculate the time and temperature for maintaining the working temperature. accumulated time;

(7) The resistance value detection unit detects the resistance value of the heating element, and the microcontroller judges whether the cigarette is smoked according to the change rate of the resistance value of the heating element. If so, go back to step (6), if not, go to the next step;

(8) The microcontroller judges whether the accumulated time for maintaining the working temperature exceeds the designed total working time threshold, if not, go to the next step, if so, go to step (15);

(9) The microcontroller judges whether the time to maintain the working temperature in this time period exceeds the set working time period, if not, go back to step (7), if so, go to the next step;

(10) The power unit reduces the output power, reduces the heating temperature of the heating element to the set standby temperature, enters the set standby time period for standby, and the timing unit starts to calculate the standby time;

(11) The gravity sensor detects the three-dimensional coordinate position change and movement rate of the smoking article, and sends out the gesture signal of the smoking action and transmits it to the microcontroller;

(12) The microcontroller determines whether the user is ready to smoke according to the gesture signal, if yes, go to the next step, if not, go to step (14);

(13) The power unit increases the output power to rapidly increase the temperature of the heating element to the working temperature, and returns to step (6);

(14) The microcontroller judges whether the standby time exceeds the set standby time period, if not, it returns to step (11), and if so, it goes to the next step;

(15) The microcontroller turns off the power output of the power unit and shuts down the curing smoker.

Preferably, the methods or steps are automatically controlled by presetting a computer program in the microcontroller.

Another technical solution of the present invention is a curing smoking tool with an automatic temperature control method, comprising a heating assembly and a battery assembly for realizing the above method, the heating assembly including a heating element for curing cigarettes , the battery assembly includes a battery, a control circuit and a start switch, the control circuit includes a microcontroller, a power unit electrically connected to the microcontroller, a resistance detection unit, a gravity sensor and a vibration prompt unit, the microcontroller It includes a timing unit, a computer program is preset in the microcontroller for automatic control, the power unit outputs power to the heating element, and the resistance value detection unit is used to detect the resistance value of the heating element. The gravity sensor detects the gesture signal of the user preparing for the smoking action and transmits it to the microcontroller. The microcontroller determines that there is a smoking action according to the gesture signal and sends out a heating control signal. and the standby state to perform time statistics, and the vibration prompting unit provides vibration prompts for the relevant working state of the smoking appliance.

beneficial effect

Using the automatic temperature control method of the present invention, the heating temperature can be kept at the working temperature when the user is smoking normally, and when the user does not smoke for a long time, the temperature can be lowered to the standby temperature and enter the standby state. After the gesture signal of the smoking action, it can quickly heat up to the working temperature. In this way, not only the power consumption of the battery can be reduced, but also the consumption of the cigarettes can be reduced, the utilization time of the cigarettes can be prolonged, the burning or mushy smell of the cigarettes can be avoided, and the user experience can be improved. At the same time, it can avoid the shortcomings of the method of using the detection of the airflow suction action to control the heating temperature in the prior art, and avoid that the amount of smoke sucked out by the user in the prior art is small, the smoking taste is bad, and the first target temperature and the second target temperature. Frequent lifting and lowering leads to frequent switching of the power supply unit and control unit, which increases power consumption and reduces work efficiency, but has the advantages of quick smoke extraction, good smoking taste, and reduced power loss.

Description of drawings

Fig. 1 is the heating temperature curve diagram of the existing electronic cigarette heating method;

Fig. 2 is the sectional schematic diagram of the curing smoking set of the present invention;

3 is a flowchart of the method of Embodiment 1 of the present invention;

Fig. 4 is the heating temperature change curve diagram of the method of Embodiment 1 of the present invention;

5 is a flowchart of the method of Embodiment 2 of the present invention;

6 is a flowchart of the method of Embodiment 3 of the present invention;

FIG. 7 is a functional block diagram of the curing smoking set according to the fourth embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

Example 1:

As shown in FIG. 2 , the cigarette-curing appliance 1 required for realizing the method of the present invention at least includes a heating assembly and a battery assembly, the heating assembly includes a heating element R for curing the cigarette 2 , and the battery assembly includes a battery 3 , a circuit The control board 4 and the start switch K, the battery 3 are used to provide power to the heating element R and control the heating element R, and the circuit control board 4 includes a control circuit (not shown in the figure).

As shown in FIG. 2 and FIG. 3 , an automatic temperature control method for a curing tobacco appliance according to an embodiment of the present invention includes:

The first stage: After pressing the start switch K to start the machine, the heating element R heats up to the set working temperature. During the set working time period, the working temperature is maintained, and at the same time, it is judged whether the cigarette 1 is smoked. Suction, restart the working period after the suction and maintain the working temperature; if it is not suctioned, control the heating element R after the working period ends to reduce the heating temperature to the set standby temperature;

The second stage: within the set standby time period, the standby temperature is maintained, and at the same time, it is judged whether the user is ready to smoke. Back to the first stage; if there is no action to prepare for smoking, the heating element R is controlled to stop working and turn off after the standby time period ends.

According to the method of the above embodiment, the following example illustrates the heating temperature change curve that can be obtained by implementing the method. As shown in FIG. 4 , after the smoking tool for curing of the present invention is turned on, the heating element R is heated from the ambient temperature to the set working temperature T1. During the first working time period t1-1, the user performs smoking 1, causing the The working temperature T1 fluctuates. After the suction 1 is over, the timing is re-entered into the second working time period t1-2. During the second working time period t1-2, the user does not smoke, so after the second working time period t1-2 ends, the working temperature T1 decreases to the standby temperature T2, and at the same time enters the first standby time period t2-1 . During the first standby time period t2-1, the gesture signal is detected and it is determined that the user is ready to smoke, then the heating element R immediately heats up to the set working temperature T1, and enters the third working time period t1-3 . During the third working time period t1-3, the user performs suction 2, resulting in a second fluctuation of the working temperature T1. After the suction 2 ends, the time is re-timed to enter the fourth working time period t1-4. During the fourth working time period t1-4, the user performs suction 3, which causes the working temperature T1 to fluctuate for the third time. During the fifth working time period t1-5, the user does not smoke, so after the fifth working time period t1-5 ends, the working temperature T1 drops to the standby temperature T2 again, and enters the second standby time period t2- 2. During the second standby time period t2-2, no gesture signal is detected and it is determined that the user is not ready to smoke. Therefore, after the second standby time period t2-2 ends, the heating element R is controlled to stop working and turn off. The heating temperature is gradually reduced to ambient temperature. The above description is only an example case, but the method described in the above embodiment can be described. The change curves of the working temperature T1 and the standby temperature T2 change according to the user's specific suction situation and gesture action situation.

In this embodiment, the method for judging whether the cigarette is smoked is: by continuously detecting the resistance value of the heating element, the resistance change rate is obtained, and if the resistance change rate reaches the set resistance change rate threshold, the cigarette is judged be smoked, otherwise it is judged that the cigarette is not smoked. In other embodiments, the method for judging whether the cigarette is smoked may also be: the distance value between the infrared light source and the human body is continuously detected by the infrared detection unit, and if the distance value reaches the set distance threshold, it is determined that the cigarette is smoked , otherwise it is judged that the cigarette has not been smoked.

In this embodiment, the method of judging whether the user is ready to smoke is: continuously detect the three-dimensional coordinate position change and movement rate of the smoking article through the gravity sensor, and obtain the gesture signal of the movement of the smoking article. If the gesture signal conforms to the set gesture signal , then it is judged that there is an action of preparing to smoke, otherwise it is judged that there is no action. Gravity sensor works according to the principle of piezoelectric effect, that is, it uses the characteristic of crystal deformation caused by acceleration inside it. Due to the deformation of crystal, a voltage is generated. Using the relationship between the voltage and the applied acceleration, you can Convert acceleration into voltage output, that is, the way the device moves, can be converted into voltage signal output. When the gravity sensor of the utility model moves when it is installed on the tobacco-curing appliance, different electrical signals will be generated according to the way of its movement. A standard gesture signal ready to smoke can be obtained by detecting the three-dimensional coordinate position change and movement rate of the motion trajectory of the smoking appliance by simulating the action of smoking by hand in advance. The gravity sensor is electrically connected to the microcontroller. When the gravity sensor is working, it sends a detection signal to the microcontroller. The microcontroller can determine whether the user is ready to smoke according to the comparison between the detected gesture action signal and the set standard gesture signal. . When the microcontroller determines that there is an action of preparing to smoke, it immediately sends out a heating control signal to make the heating element heat up rapidly.

In other embodiments, the method for judging whether the user is ready to smoke can also be: the distance value between the infrared light source and the human body is continuously detected by the infrared detection unit, and if the decreasing rate of the distance value reaches the set decreasing rate threshold, Then it is judged that there is an action of preparing to smoke, otherwise it is judged that there is no action. Specifically, the infrared detection unit detects the linear distance between the infrared light source and the blocking object by emitting infrared rays from the infrared light source. When the infrared detection unit is installed on the smoking article, the distance that the smoking article is picked up and close to the lips is continuously reduced. When the user smokes, the cigarette of the smoking article is held in the mouth, and the distance detected by the infrared sensor is close to zero. The decreasing trend of this distance represents a gesture signal that the user is ready to smoke. The infrared detection unit is electrically connected with the microcontroller, and the infrared detection unit detects the distance signal between the infrared light source and the human body and transmits it to the microcontroller. The microcontroller can obtain the signal when the smoking action just occurs according to the decreasing rate of the distance signal. When the gesture signal of the user's smoking action conforms to the preset gesture signal, a heating control signal is immediately sent out to make the heating element heat up.

In other embodiments, the method for judging whether the user is ready to smoke can also be that the atmospheric pressure is continuously detected by a pressure sensor, and if the rate of change of the atmospheric pressure reaches a set threshold of the rate of change of the air pressure, it is determined that there is a person who is ready to smoke. Action, otherwise judge no. Specifically, the air pressure sensor of the present invention is an air pressure sensor that can accurately detect atmospheric pressure, and detection data can be obtained when the atmospheric pressure changes slightly. In a certain area, there is a one-to-one correspondence between atmospheric pressure and altitude, that is, the higher the altitude, the lower the atmospheric pressure. The barometric pressure sensor can obtain the data of the altitude change by detecting the change of the atmospheric pressure. When a user is smoking, the gesture of smoking usually involves a process of lifting up from a low place and approaching the lips. During this process, the height of the smoking device in the hand will inevitably change, and the atmospheric pressure will also change. Therefore, The air pressure sensor can indirectly detect the gesture signal of the user's smoking action. The air pressure sensor is electrically connected with the microcontroller. The air pressure sensor detects the air pressure signal and transmits it to the microcontroller. The microcontroller can obtain the gesture signal of the user's smoking action when the smoking action just occurs according to the change rate of the atmospheric pressure signal. When the preset gesture signal is met, the heating control signal is immediately sent out, and the power unit of the smoking appliance increases the output power to make the heating element heat up. The rate of change of the atmospheric pressure signal refers to the difference in atmospheric pressure changes per unit time. The rate of change of the atmospheric pressure signal represents the rate of change of the altitude, that is, the change of the altitude per unit time, which can reflect the change of the moving height of the user's hand-held smoking tool.

In this embodiment, the method for detecting the heating temperature is: by continuously detecting the resistance value of the heating element and according to the corresponding relationship between the resistance value and the temperature of the thermistor, the heating temperature corresponding to the resistance value can be obtained. In other embodiments, the heating temperature may be directly detected by a temperature sensor close to the heating element.

In this embodiment, the setting method of the working temperature is: setting a working temperature of a fixed value. In other embodiments, it is also possible to set the working temperature that is in a certain functional relationship with the time period.

Embodiments of the present invention

The present invention will be described in detail below through specific embodiments.

Embodiment 2

As shown in Figure 5, an automatic temperature control method for a curing smoking tool of the present invention includes:

The second stage: within the set standby time period, the standby temperature is maintained, and at the same time, it is judged whether the user is ready to smoke. Return to the first stage; if there is no action to prepare for smoking, control the heating element R to further reduce the heating temperature to the set second standby temperature after the standby time period ends;

The third stage: within the set second standby time period, the second standby temperature is maintained, and at the same time, it is judged whether the user is ready to smoke. The working temperature is returned to the first stage; if there is no action to prepare for smoking, the heating element R is controlled to stop working and turn off after the second standby time period ends.

By increasing the second standby temperature in this embodiment, the power loss of the heating element can be further reduced, and the service life of the cigarette can be further extended.

In the first stage of this embodiment, the total working time for maintaining the working temperature is accumulated and calculated, and it is judged whether the total working time reaches the set total working time threshold. The heating element stops working and shuts down.

Embodiment 3

As shown in FIG. 6 , on the basis of Embodiment 1, this embodiment further includes the following specific operation steps:

(1) Set relevant parameters on the microcontroller;

(2) Turn on the start switch K, and start the smoking tool 1;

(3) The power unit outputs power to the heating element R, and the smoking appliance 1 enters the heating and heating state;

(8) The microcontroller judges whether the accumulated time to maintain the working temperature exceeds the set total working time threshold, if not, go to the next step, if so, go to step (15);

In this embodiment, the above steps are all automatically controlled by presetting a computer program in the microcontroller.

Embodiment 4

As shown in FIG. 2 and FIG. 7 , the curing cigarette 1 required to realize the method of the present invention at least includes a heating assembly and a battery assembly, the heating assembly includes a heating element R for curing the cigarette 2, and the battery assembly includes a battery 3. The circuit control board 4 and the start switch K, the battery 3 is used to supply power to the heating element R and control the heating element R, and the circuit control board 4 includes a control circuit. The control circuit is provided with a microcontroller 6, a vibration prompting unit 5 electrically connected with the microcontroller 6, a power unit 7, a resistance detection unit 8 and a gravity sensor 9, and the microcontroller 6 includes a computer program 61 and a timing unit 62, The power unit 7 is electrically connected to the battery 4 and outputs the working power to the heating element 3 after adjusting the battery voltage. The value will change, and the microcontroller 6 can judge whether to smoke according to the change signal of the resistance value; at the same time, the heating element R is made of a thermistor, and its resistance value and temperature have mutual correspondence, so the microcontroller 6 also The heating temperature can be judged according to its resistance value. The gravity sensor 9 detects the gesture signal of the smoking action and transmits it to the microcontroller 6. The microcontroller 6 predicts that the user is ready to smoke according to the gesture signal and sends out a heating control signal. The temperature state and the standby state are counted by time, and the vibration prompt unit 5 provides vibration prompts for the relevant working states of the smoking appliance, such as when the power is turned on, off, the heating temperature reaches the working temperature, and the working temperature drops to the standby temperature.

As shown in FIG. 2 and FIG. 7 , the working principle of the smoking-curing appliance 1 is that when the user uses the smoking-curing appliance 1, he first presses the start switch K to turn on the battery power supply, and supplies power to the microcontroller 6 and the related control circuit, Through the control of the microcontroller 6, the power unit 7 performs boosting or decreasing processing according to the instructions of the microcontroller 6, and finally outputs power to the heating element R. After the heating element R works, the temperature rises to the set working temperature. At this time, the vibration prompting unit 5 performs a vibrating prompt, indicating that it has entered the set working time period and is in a state of waiting for smoking. According to the vibration prompt, the user can start smoking and time Unit 62 performs correlation timing. The resistance value detection unit 8 detects the change of the resistance value of the heating element R when working. Since the resistance value of the heating element 3 will change when the user smokes, the microcontroller 6 can judge whether to smoke or not according to the signal of the change of the resistance value. When the user is smoking a cigarette, the heating temperature will drop. The microcontroller 6 keeps the power unit 7 maintain a stable power output, and makes the temperature of the heating element R rise to maintain the working temperature. If the user smokes during the working time period, when the smoking is over, the heating temperature continues to remain unchanged, and the next working time period is recalculated at the same time. If the user does not smoke during the working time period, the microcontroller 6 controls the power unit 7 to reduce the power output, so that the heating element R reduces the heating temperature to the set standby temperature and maintains it, so as to save the power of the battery, and at the same time make the flue-cured tobacco The service life of the support is extended. During the standby time period, the gravity sensor 9 works, simulating the action of smoking by hand, and detects the motion trajectory, action frequency, three-dimensional coordinate position change, moving speed, etc. of the smoking article, and sends the detected gesture signal to the microcontroller 6 . , the microcontroller 6 prejudges whether the user is ready to smoke, and if it prejudges that there is an action of preparing to smoke, the microcontroller 6 controls the power unit 7 to rapidly increase the output power, and when the user puts the cigarette in the mouth, the heating element The heating temperature of the R has been quickly raised to the operating temperature and maintained so that the user can immediately inhale the smoke. If the gesture signal of the user preparing to smoke is not detected within the standby time period, the smoking appliance will automatically shut down.

The advantage of the automatic temperature-controlling smoking tool of the present invention is that it is provided with a power unit 7, a microcontroller 6, a resistance value detection unit 8, a gravity sensor 9 and a timing unit 62, etc., so that when the user is smoking normally, the heating The temperature can be maintained at the smoking temperature, and when not smoking for a long time, the temperature can be lowered to the standby temperature to enter the standby state. Once the gesture signal of the user's smoking action is detected, the temperature can be quickly raised to the working temperature to be smoked. In this way, not only the power consumption of the battery can be reduced, but also the consumption of tobacco can be reduced, the utilization time of the cigarettes can be prolonged, the burning or mushy taste of the tobacco can be avoided, and the user experience can be improved.

Industrial Applicability

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims

An automatic temperature control method for curing smoking utensils, comprising:

The first stage: After the heating element is heated to the set working temperature, the working temperature is maintained during the set working time period, and at the same time, it is judged whether the cigarette is smoked. Working time period and maintain working temperature; if it is not pumped, control the heating element after the end of the working time period to reduce the heating temperature to the set standby temperature;

The second stage: within the set standby time period, the standby temperature is maintained, and at the same time, it is judged whether the user is ready to smoke. Go to the first stage; if there is no action to prepare for smoking, control the heating element to stop working and shut down or further reduce the heating temperature to the set second standby temperature after the standby time period ends.
The automatic temperature control method for curing smoking utensils according to claim 1, is characterized in that, also comprises:

The third stage: in the second stage, if the heating temperature is lowered to the second standby temperature, the second standby temperature is maintained during the set second standby time period, and at the same time, it is judged whether the user is ready to smoke. Smoking action, the heating element is controlled to raise the heating temperature to the working temperature immediately, and returns to the first stage; if there is no action to prepare for smoking, the heating element is controlled to stop working and shut down after the second standby time period ends.
The automatic temperature control method for curing smoking set according to claim 1 or 2, characterized in that, further comprising:

In the first stage, the total working time for maintaining the working temperature is accumulated and calculated, and it is judged whether the total working time reaches the set total working time threshold. Stop working and shut down.
The automatic temperature control method for curing smoking utensils according to claim 1, wherein the method for judging whether the cigarettes are smoked is:

By continuously detecting the resistance of the heating element, the resistance change rate is obtained. If the resistance change rate reaches the set resistance change rate threshold, it is judged that the cigarette is smoked, otherwise it is judged that the cigarette is not smoked;

Or continuously detect the distance between the infrared light source and the human body through the infrared detection unit. If the distance value reaches the set distance threshold, it is determined that the cigarette is smoked, otherwise it is determined that the cigarette is not smoked.
The automatic temperature-controlling method for curing smoking utensils according to claim 1 or 2, wherein the method for judging whether the user is ready to smoke is:

The three-dimensional coordinate position change and movement rate of the smoking article are continuously detected by the gravity sensor, and the gesture signal of the movement of the smoking article is obtained. If the gesture signal conforms to the set gesture signal, it is judged that there is an action of preparing to smoke; otherwise, it is judged that there is no action;

Or continuously detect the distance value between the infrared light source and the human body through the infrared detection unit, if the decreasing rate of the distance value reaches the set decreasing rate threshold, it is judged that there is an action of preparing to smoke, otherwise it is judged that there is no action;

Or continuously detect the atmospheric pressure through the pressure sensor, if the change rate of the atmospheric pressure reaches the set threshold value of the air pressure change rate, it is judged that there is an action of preparing to smoke, otherwise it is judged that there is no action.
The automatic temperature control method for curing smoking utensils according to claim 1 or 2, wherein the detection method of the heating temperature is:

By continuously detecting the resistance value of the heating element and according to the corresponding relationship between the resistance value and the temperature of the thermistor, the heating temperature corresponding to the resistance value can be obtained;

Or directly detect the heating temperature through a temperature sensor close to the heating element.
The automatic temperature control method for a curing smoking tool according to claim 1 or 2, wherein the method for setting the working temperature is: setting a working temperature of a fixed value; or setting a certain functional relationship with the time period operating temperature.
The automatic temperature control method for curing smoking utensils according to claim 1, characterized in that, further comprising the following specific operation steps:

(1) Set relevant parameters on the microcontroller;

(2) Turn on the start switch to start the smoke-curing appliance;

(3) The power unit outputs power to the heating element, and the smoking appliance enters the heating and heating state;

(4) The resistance value detection unit detects the resistance value of the heating element. The microcontroller calculates the heating temperature according to its resistance value, and judges whether the heating temperature reaches the set working temperature. If so, go to the next step, if not, return to the Previous;

(5) When the temperature rise ends, the microcontroller controls the vibration prompting unit to vibrate;

(6) The microcontroller controls the power output of the power unit, so that the heating temperature of the heating element is maintained at the working temperature, the tobacco curing appliance begins to enter the set working time period for smoking, and the timing unit begins to calculate the time and temperature for maintaining the working temperature. accumulated time;

(7) The resistance value detection unit detects the resistance value of the heating element, and the microcontroller judges whether the cigarette is smoked according to the change rate of the resistance value of the heating element. If so, go back to step (6), if not, go to the next step;

(8) The microcontroller judges whether the accumulated time to maintain the working temperature exceeds the set total working time threshold, if not, go to the next step, if so, go to step (15);

(9) The microcontroller determines whether the time to maintain the working temperature in this time period exceeds the set working time period, if not, go back to step (7), if so, go to the next step;

(10) The power unit reduces the output power, reduces the heating temperature of the heating element to the set standby temperature, enters the set standby time period for standby, and the timing unit starts to calculate the standby time;

(11) The gravity sensor detects the three-dimensional coordinate position change and movement rate of the smoking article, and sends out the gesture signal of smoking action and transmits it to the microcontroller;

(12) The microcontroller determines whether the user is ready to smoke according to the gesture signal, if yes, go to the next step, if not, go to step (14);

(13) The power unit increases the output power, so that the temperature of the heating element is rapidly raised to the working temperature, and returns to step (6);

(14) The microcontroller determines whether the standby time exceeds the set standby time period, if not, it returns to step (11), and if so, it goes to the next step;

(15) The microcontroller turns off the power output of the power unit and shuts down the curing smoker.
The automatic temperature control method for curing smoking utensils according to any one of claims 1-8, characterized in that, all the methods or steps are automatically controlled by presetting a computer program in a microcontroller.
A curing tobacco appliance with an automatic temperature control method, characterized in that it includes a heating assembly and a battery assembly for implementing the method of any one of claims 1-9, and the heating assembly includes a heating assembly for curing cigarettes. A heating element, the battery assembly includes a battery, a control circuit and a start switch, the control circuit includes a microcontroller, a power unit electrically connected to the microcontroller, a resistance detection unit, a gravity sensor and a vibration prompt unit, the microcontroller The controller includes a timing unit, a computer program is preset in the microcontroller for automatic control, the power unit outputs power to the heating element, and the resistance value detection unit is used to detect the resistance value of the heating element. , the gravity sensor detects the gesture signal of the user preparing for the smoking action and transmits it to the microcontroller, the microcontroller sends out a heating control signal after judging that there is a smoking action according to the gesture signal, and the timing unit is respectively used for continuous work. Time statistics are performed on the temperature state and the standby state, and the vibration prompting unit provides a vibration prompt on the relevant working state of the smoking appliance.