CN116147027A

CN116147027A - Intelligent kitchen range ignition state detection method and detection system

Info

Publication number: CN116147027A
Application number: CN202310310600.7A
Authority: CN
Inventors: 任富佳; 李信合; 方宇佳; 王文龙; 付安荣
Original assignee: Hangzhou Robam Appliances Co Ltd
Current assignee: Hangzhou Robam Appliances Co Ltd
Priority date: 2023-03-27
Filing date: 2023-03-27
Publication date: 2023-05-23

Abstract

The embodiment of the invention discloses an intelligent kitchen range ignition state detection method and a detection system, wherein the detection method comprises the following steps: controlling the igniter to ignite; sampling the thermocouple potential in real time to obtain an initial thermocouple potential and a real-time thermocouple potential; and judging the ignition state of the kitchen range according to the magnitude relation between the real-time thermocouple potential and the first preset potential threshold value and the initial thermocouple potential. By utilizing the method, the ignition state of the intelligent kitchen range can be detected more accurately and rapidly by sampling the thermocouple potential in real time and judging the magnitude of the real-time thermocouple potential with the first preset potential threshold value and the initial thermocouple potential respectively, the situation that the ignition state is misjudged when the intelligent kitchen range is immediately ignited after the intelligent kitchen range is turned off after being in operation for a period of time is avoided, the situations of waste of battery electric quantity, long gas leakage time and large gas leakage amount of the intelligent kitchen range caused by overlong judging time are avoided, the use safety of the kitchen range is improved, and the service life of the kitchen range is prolonged.

Description

Intelligent kitchen range ignition state detection method and detection system

Technical Field

The embodiment of the invention relates to the technical field of kitchen equipment, in particular to an intelligent kitchen range ignition state detection method and system.

Background

The method for detecting the success or failure of ignition of the existing stove comprises the following steps: after the ignition function is started, the electric potential threshold of the thermocouple is set, the electric potential of the thermocouple is firstly discharged and ignited for a period of time, then the electric potential of the thermocouple is continuously detected for a period of time, whether the electric potential of the thermocouple reaches a preset threshold or not is judged, if the electric potential of the thermocouple is larger than the threshold, the ignition is judged to be successful, and if the electric potential of the thermocouple is smaller than the threshold, the ignition is judged to be failed. However, this method has the following pain points: 1. the single judgment condition is adopted, so that false detection is easy to occur, particularly when the stove works for a period of time and the stove head is very hot, ignition is immediately carried out after fire closing, and whether ignition is successful or not can not be accurately detected; 2. the whole ignition and detection time is longer, so that the power consumption of the battery is increased, and the conditions of long gas leakage time and large gas leakage amount when ignition failure occurs are caused.

Disclosure of Invention

The embodiment of the invention provides an intelligent kitchen stove ignition state detection method and system, which are used for detecting the ignition state of an intelligent kitchen stove more accurately and rapidly, improving the use safety of the kitchen stove and prolonging the service life of the kitchen stove.

In a first aspect, an embodiment of the present invention provides a method for detecting an ignition state of an intelligent kitchen range, including:

controlling the igniter to ignite;

sampling the thermocouple potential in real time to obtain an initial thermocouple potential and a real-time thermocouple potential;

and judging the ignition state of the kitchen range according to the relation between the real-time thermocouple potential and the first preset potential threshold value and the initial thermocouple potential.

Optionally, according to the magnitude relation between the real-time thermocouple potential and the first preset potential threshold and the initial thermocouple potential, judging the ignition state of the kitchen range includes:

when the real-time thermocouple potential is larger than the first preset potential threshold and larger than the initial thermocouple potential, judging that the kitchen range is successfully ignited;

and judging that the kitchen range does not finish ignition when the real-time thermocouple potential is smaller than or equal to the first preset potential threshold value and/or the real-time thermocouple potential is smaller than or equal to the initial thermocouple potential.

Optionally, the method further comprises the following steps of:

a timer is started.

Optionally, sampling the thermocouple potential in real time to obtain an initial thermocouple potential and a real-time thermocouple potential, comprising:

sampling thermocouple potential in real time to obtain the initial thermocouple potential;

determining that the total timing time is longer than a first preset duration;

and sampling the thermocouple potential in real time to obtain the real-time thermocouple potential.

Optionally, when the real-time thermocouple potential is less than or equal to the first preset potential threshold value and/or the real-time thermocouple potential is less than or equal to the initial thermocouple potential, after the kitchen range is judged to have not ignited, the method further comprises:

when the total time is less than or equal to the second preset time length, continuing to sample the thermocouple potential in real time to obtain the real-time thermocouple potential; wherein the second preset time period is longer than the first preset time period;

and judging the ignition state of the kitchen range according to the magnitude relation between the real-time thermocouple potential, the first preset potential threshold and the initial thermocouple potential.

and when the total time is longer than the second preset time, controlling the igniter to stop discharging and closing the gas electromagnetic valve.

Optionally, when the real-time thermocouple potential is greater than the first preset potential threshold and greater than the initial thermocouple potential, after the kitchen range ignition is judged to be successful, the method further comprises:

sampling the thermocouple potential in real time to obtain the real-time thermocouple potential;

closing the gas electromagnetic valve when the real-time thermocouple potential is smaller than a second preset potential threshold value and the duration time is longer than a third preset duration time; wherein the first preset potential threshold is greater than the second preset potential threshold.

In a second aspect, an embodiment of the present invention further provides an intelligent kitchen range ignition state detection system, configured to execute the intelligent kitchen range ignition state detection method according to any one of the first aspect;

the detection system comprises a main control module, wherein the main control module is respectively coupled with an igniter and a thermocouple, the main control module is used for controlling the igniter to ignite, sampling the thermocouple potential in real time, obtaining an initial thermocouple potential and a real-time thermocouple potential, and judging the ignition state of the kitchen range according to the magnitude relation between the real-time thermocouple potential and a first preset potential threshold value and the initial thermocouple potential.

Optionally, the main control module is further coupled with a gas electromagnetic valve;

the main control module is further used for controlling an igniter to stop discharging and closing the gas electromagnetic valve when the total time is greater than a second preset time length after judging that the kitchen range does not finish ignition when the real-time thermocouple potential is less than or equal to the first preset potential threshold value and/or the real-time thermocouple potential is less than or equal to the initial thermocouple potential;

and/or the main control module is further used for sampling the thermocouple potential in real time after judging that the kitchen range is successfully ignited when the real-time thermocouple potential is greater than the first preset potential threshold and greater than the initial thermocouple potential, obtaining the real-time thermocouple potential, and closing the gas electromagnetic valve when the real-time thermocouple potential is less than the second preset potential threshold and the duration is greater than a third preset duration; wherein the first preset potential threshold is greater than the second preset potential threshold.

Optionally, the circuit further comprises a sampling circuit and an operational amplifier circuit; the input end of the sampling circuit is coupled with the thermocouple, the output end of the sampling circuit is coupled with the input end of the operational amplifier circuit, and the output end of the operational amplifier circuit is coupled with the main control module;

the sampling circuit is used for sampling the electric potential of the thermocouple, and the operational amplifier circuit is used for amplifying the electric potential of the thermocouple.

The embodiment of the invention provides an intelligent kitchen range ignition state detection method and a detection system, wherein the detection method comprises the following steps: controlling the igniter to ignite; sampling the thermocouple potential in real time to obtain an initial thermocouple potential and a real-time thermocouple potential; and judging the ignition state of the kitchen range according to the magnitude relation between the real-time thermocouple potential and the first preset potential threshold value and the initial thermocouple potential. By utilizing the method, the ignition state of the intelligent kitchen range can be detected more accurately and rapidly by sampling the thermocouple potential in real time and judging the magnitude of the real-time thermocouple potential with the first preset potential threshold value and the initial thermocouple potential respectively, the situation that the ignition state is misjudged when the intelligent kitchen range is immediately ignited after the intelligent kitchen range is turned off after being in operation for a period of time is avoided, the situations of waste of battery electric quantity, long gas leakage time and large gas leakage amount of the intelligent kitchen range caused by overlong judging time are avoided, the use safety of the kitchen range is improved, and the service life of the kitchen range is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic flow chart of an intelligent kitchen range ignition state detection method provided by an embodiment of the invention;

fig. 2 is a schematic structural diagram of an intelligent kitchen range ignition state detection system according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of another intelligent kitchen range ignition state detection system according to an embodiment of the present invention;

fig. 4 is a schematic flow chart of another method for detecting ignition state of an intelligent kitchen range according to an embodiment of the present invention;

fig. 5 is a schematic flow chart of another method for detecting ignition state of an intelligent kitchen range according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of another intelligent kitchen range ignition state detection system according to an embodiment of the present invention;

fig. 7 is a schematic flow chart of another intelligent kitchen range ignition state detection system provided by the embodiment of the invention;

fig. 8 is a schematic flow chart of another intelligent kitchen range ignition state detection system provided by the embodiment of the invention.

Detailed Description

The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. It should be noted that, the terms "upper", "lower", "left", "right", and the like in the embodiments of the present invention are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present invention. In addition, in the context, it will also be understood that when an element is referred to as being formed "on" or "under" another element, it can be directly formed "on" or "under" the other element or be indirectly formed "on" or "under" the other element through intervening elements. The terms "first," "second," and the like, are used for descriptive purposes only and not for any order, quantity, or importance, but rather are used to distinguish between different components. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The term "comprising" and variants thereof as used herein is intended to be open ended, i.e., including, but not limited to. The term "based on" is based at least in part on. The term "one embodiment" means "at least one embodiment".

It should be noted that the terms "first," "second," and the like herein are merely used for distinguishing between corresponding contents and not for defining a sequential or interdependent relationship.

It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those skilled in the art will appreciate that "one or more" is intended to be construed as "one or more" unless the context clearly indicates otherwise.

Fig. 1 is a schematic flow chart of an intelligent kitchen stove ignition state detection method provided by the embodiment of the invention, fig. 2 is a schematic flow chart of an intelligent kitchen stove ignition state detection system provided by the embodiment of the invention, the embodiment can be suitable for judging the condition of successful or unsuccessful ignition of an intelligent kitchen stove in real time, the intelligent kitchen stove ignition state detection method can be implemented by the intelligent kitchen stove ignition state detection system, the intelligent kitchen stove ignition state detection system can be implemented in a hardware and/or software mode, the intelligent kitchen stove ignition state detection system can be configured in a control board, as shown in fig. 2, the intelligent kitchen stove ignition state detection system comprises a main control module 1, the main control module 1 is respectively coupled with an igniter 2 and a thermocouple 3, the main control module 1 is used for controlling the igniter 2 to ignite and sampling the thermocouple potential in real time to obtain an initial thermocouple potential and a real-time thermocouple potential, and judging the ignition state of the kitchen stove according to the relation between the real-time thermocouple potential and a first preset potential threshold and the initial thermocouple potential. As shown in fig. 1, the method for detecting the ignition state of the intelligent kitchen range comprises the following steps:

s110, controlling ignition of the igniter.

Specifically, with continued reference to fig. 2, the intelligent kitchen range ignition state detection system includes a main control module 1, the main control module 1 is coupled with an igniter 2, and the main control module 1 can control the igniter 2 to ignite. For example, the igniter 2 may be a pulse igniter 2, the pulse igniter 2 is a pulse high-frequency oscillator composed of electronic components, the high-frequency voltage generated by the oscillator is raised to a high voltage of 15KV by a step-up transformer, and the high-frequency voltage is subjected to tip discharge, and the discharged spark ignites the fuel gas on the gas stove to generate flame, so that the pulse igniter 2 has the characteristics of high ignition rate, continuous discharge and the like.

S120, sampling the thermocouple potential in real time to obtain an initial thermocouple potential and a real-time thermocouple potential.

Specifically, with continued reference to fig. 2, the intelligent kitchen range ignition state detection system includes a main control module 1, the main control module 1 is coupled with a thermocouple 3, and the main control module 1 can sample thermocouple potentials in real time to obtain an initial thermocouple potential and a real-time thermocouple potential. The thermocouple 3 is a commonly used temperature measuring element in a temperature measuring instrument, the thermocouple 3 can directly measure the temperature and convert a temperature signal into a thermoelectromotive force signal, and the thermocouple 3 has the characteristics of wide temperature measuring range, high measuring precision, quick thermal response time, long service life, reliable and stable performance and the like, so that the change of the temperature of the intelligent kitchen range in the ignition process can be correspondingly obtained according to the change of the thermocouple potential according to the real-time sampling thermocouple potential, the thermocouple 3 is mounted on a kitchen range of the intelligent kitchen range, the thermocouple 3 can be ensured to be heated quickly after the ignition of the igniter 2, the collected thermocouple potential is the initial thermocouple potential at the moment that the ignition of the igniter 2 is controlled by the main control module 1, the value of the initial thermocouple potential is smaller than that of the thermocouple potential after the ignition is successful, and the real-time sampling of the thermocouple potential is continuously carried out after the ignition of the igniter 2 is controlled by the main control module 1, so that the real-time thermocouple potential is obtained.

Optionally, fig. 3 is a schematic structural diagram of another intelligent kitchen stove ignition state detection system provided in the embodiment of the present invention, as shown in fig. 3, the intelligent kitchen stove ignition state detection system further includes a sampling circuit 4 and an operational amplifier circuit 5; the input end of the sampling circuit 4 is coupled with the thermocouple 3, the output end of the sampling circuit is coupled with the input end of the operational amplifier circuit 5, and the output end of the operational amplifier circuit 5 is coupled with the main control module 1; the sampling circuit 4 is used for sampling the electric potential of the thermocouple 3, and the operational amplifier circuit 5 is used for amplifying the electric potential of the thermocouple 3. Specifically, the intelligent kitchen range ignition state detection system comprises a main control module 1, an igniter 2, a thermocouple 3, a sampling circuit 4 and an operational amplifier circuit 5. The thermocouple 3 can quickly heat up after the igniter 2 ignites, and converts a temperature signal into a thermoelectromotive force signal, namely a thermocouple potential, the input end of the sampling circuit 4 is coupled with the thermocouple 3, the sampling circuit 4 can detect the thermocouple potential, the output end of the sampling circuit 4 is coupled with the input end of the operational amplifier circuit 5, the operational amplifier circuit 5 can amplify the thermocouple potential detected by the sampling circuit 4, the output end of the operational amplifier circuit 5 is coupled with the main control module 1, the operational amplifier circuit 5 can transmit the amplified thermocouple potential to the main control module 1, and the main control module 1 can acquire information of the thermocouple potential sampled in real time.

S130, judging the ignition state of the kitchen range according to the magnitude relation between the real-time thermocouple potential and the first preset potential threshold value and the initial thermocouple potential.

With continued reference to fig. 2, the first preset potential threshold is the minimum thermocouple potential that can be generated by the thermocouple 3 during the time when the kitchen range device burns for the first preset duration under the cold condition, and the first preset potential threshold can be determined through various tests according to various factors such as parameters of a burner of the kitchen range device, a range condition of the kitchen range device, and the like. The initial thermocouple potential is the moment when the main control module 1 controls the igniter 2 to ignite, and can be sampled to the thermocouple potential. Specifically, the main control module 1 can judge the ignition state of the kitchen range according to the magnitude relation between the real-time thermocouple potential, the first preset potential threshold value and the initial thermocouple potential. Illustratively, under the cold state condition, by judging the magnitude relation between the real-time thermocouple potential and the first preset potential threshold value, the kitchen range ignition success can be judged when the real-time thermocouple potential is larger than the first preset potential threshold value, and the kitchen range ignition failure can be judged when the real-time thermocouple potential is smaller than or equal to the first preset potential threshold value. However, under the thermal condition, when the ignition of the kitchen range fails, the real-time thermocouple potential is still greater than the first preset potential threshold value, at this time, the magnitude relation between the real-time thermocouple potential and the initial thermocouple potential is also needed to be judged, whether the temperature of the kitchen range in the ignition process is changed from the temperature at the moment of ignition or not is analyzed, the ignition state of the kitchen range is further judged, and the accuracy and the rapidity for detecting the ignition state of the intelligent kitchen range are improved.

According to the technical scheme, firstly, ignition of the igniter is controlled, then the thermocouple potential is sampled in real time, initial thermocouple potential and real-time thermocouple potential are obtained, and finally, the ignition state of the kitchen range is judged according to the relation between the real-time thermocouple potential and the first preset potential threshold value and the magnitude relation between the real-time thermocouple potential and the initial thermocouple potential. By utilizing the method, the ignition state of the intelligent kitchen range can be detected more accurately and rapidly by sampling the thermocouple potential in real time and judging the magnitude of the real-time thermocouple potential with the first preset potential threshold value and the initial thermocouple potential respectively, the situation that the ignition state is misjudged when the intelligent kitchen range is immediately ignited after the intelligent kitchen range is turned off after being in operation for a period of time is avoided, the situations of waste of battery electric quantity, long gas leakage time and large gas leakage amount of the intelligent kitchen range caused by overlong judging time are avoided, the use safety of the kitchen range is improved, and the service life of the kitchen range is prolonged.

Fig. 4 is a schematic flow chart of another method for detecting ignition state of an intelligent kitchen range according to an embodiment of the present invention, where the embodiment is optimized based on the above embodiment. Optionally, judging the ignition state of the kitchen range according to the magnitude relation between the real-time thermocouple potential and the first preset potential threshold and the initial thermocouple potential, including:

when the real-time thermocouple potential is larger than a first preset potential threshold value and larger than the initial thermocouple potential, judging that the kitchen range ignition is successful;

Further, the method also comprises the following steps of:

a timer is started.

Still further, sampling the thermocouple potential in real time to obtain an initial thermocouple potential and a real-time thermocouple potential, comprising:

sampling the thermocouple potential in real time to obtain an initial thermocouple potential;

determining that the total timing time is longer than a first preset duration;

For details not yet described in this embodiment, please refer to the above embodiment, as shown in fig. 4, the method for detecting an ignition state of an intelligent kitchen range includes:

and S210, controlling ignition of the igniter, and starting timing.

Specifically, with continued reference to fig. 2, the ignition state detection system of the intelligent kitchen range includes a main control module 1, the main control module 1 is coupled with an igniter 2, the main control module 1 can control the igniter 2 to ignite, and at the same time, the main control module 1 can also start timing, and whether the igniter 2 ignites successfully or fails is judged in a specific time range.

S220, sampling the thermocouple potential in real time to obtain an initial thermocouple potential.

Specifically, with continued reference to fig. 2, when the main control module 1 controls the ignition of the igniter 2, the main control module 1 samples the obtained thermocouple potential in real time, that is, the initial thermocouple potential.

S230, determining that the total timing time is greater than a first preset duration.

With continued reference to fig. 2, the first preset time period may be based on a minimum time required for successful ignition of the igniter 2, and may be, for example, 1-3s. Specifically, when the main control module 1 controls the ignition of the igniter 2, the initial thermocouple potential can be sampled, and since the ignition process of the igniter 2 needs to least pass through the first preset time length, after the first preset time length, the main control module 1 starts to sample in real time to obtain the real-time thermocouple potential. After the main control module 1 starts timing, it should be determined that the total timing time is greater than a first preset time length, and real-time sampling is performed to obtain a plurality of real-time thermocouple potentials, if the total timing time is less than or equal to the first preset time length, the total timing time does not meet the minimum time required for successful ignition of the igniter 2, whether the igniter 2 is successful or not can not be accurately judged, and the reason that the igniter 2 fails to ignite can not be accurately judged is that the igniter 2 is abnormal in ignition, or the igniter 2 does not complete ignition because the total timing time is too short.

S240, sampling the thermocouple potential in real time to obtain the real-time thermocouple potential.

Specifically, with continued reference to fig. 2, after the main control module 1 controls the igniter 2 to ignite and at least the first preset duration passes, the main control module 1 samples the thermocouple potential in real time to obtain the real-time thermocouple potential.

S250, judging that the kitchen range is successfully ignited when the real-time thermocouple potential is greater than a first preset potential threshold and greater than the initial thermocouple potential.

Specifically, with continued reference to fig. 2, when the real-time thermocouple potential is greater than the first preset potential threshold, the plurality of thermocouple potentials sampled in real time are all greater than the first preset potential threshold, then after the first preset time period passes after the main control module 1 controls the igniter 2 to fire, the plurality of thermocouple potentials sampled in real time all meet the requirement of the first preset potential threshold, the thermocouple 3 has a temperature rise, and when the real-time thermocouple potential is greater than the initial thermocouple potential, the plurality of thermocouple potentials sampled in real time are all greater than the initial thermocouple potential, then after the main control module 1 controls the igniter 2 to fire, the plurality of thermocouple potentials sampled in real time all meet the requirement of the initial thermocouple potential, and compared with the instant temperature at which the main control module 1 controls the igniter 2 to fire, the temperature at the thermocouple 3 is higher. When the real-time thermocouple potential is larger than the first preset potential threshold value and larger than the initial thermocouple potential, the ignition of the kitchen range can be judged to be successful when two judging conditions of the real-time thermocouple potential are established, the fire is normal, and the igniter 2 stops discharging at the moment, so that the ignition state of the intelligent kitchen range can be accurately and rapidly detected, and the situation that the ignition state is misjudged when the intelligent kitchen range is immediately ignited after being turned off for a period of time is avoided. It should be noted that, for the start of the kitchen range in a hotter state, for example, the kitchen range is restarted immediately after being closed, at this time, even if the ignition of the igniter 2 fails, the heat on the kitchen range of the kitchen range still can make the thermocouple 3 generate a higher thermocouple potential, and then in a period of time, the real-time thermocouple potential sampled in real time can be kept above the first preset potential threshold, which may cause misjudgment of the ignition state of the intelligent kitchen range ignition state detection system, and the situations of long gas leakage time and large gas leakage amount, there is a potential safety hazard of kitchen equipment, so that it is still required to judge the relationship between the real-time thermocouple potential sampled in real time and the initial thermocouple potential, and when the real-time thermocouple potential sampled in real time is greater than the initial thermocouple potential, it indicates that there is a temperature rise at the thermocouple 3, so that the ignition of the kitchen range can be judged to succeed.

And S260, judging that the kitchen range does not finish ignition when the real-time thermocouple potential is smaller than or equal to a first preset potential threshold value and/or the real-time thermocouple potential is smaller than or equal to an initial thermocouple potential.

Specifically, with continued reference to fig. 2, when the real-time thermocouple potential is less than or equal to the first preset potential threshold, the plurality of thermocouple potentials sampled in real time are not all greater than the first preset potential threshold, that is, there is a thermocouple potential less than or equal to the first preset potential threshold among the plurality of thermocouple potentials sampled in real time, after the main control module 1 controls the igniter 2 to ignite, the temperature rise at the thermocouple 3 is unstable or does not meet the minimum temperature rise value corresponding to the first preset potential threshold, at this time, it is determined that the ignition of the kitchen range is not completed, and there may be an ignition abnormality at the kitchen range. And/or when the real-time thermocouple potential is smaller than or equal to the initial thermocouple potential, the plurality of thermocouple potentials sampled in real time are not all larger than the initial thermocouple potential, the thermocouple potential smaller than or equal to the initial thermocouple potential exists in the plurality of thermocouple potentials sampled in real time, after the main control module 1 controls the igniter 2 to ignite for a first preset period of time, compared with the temperature at the moment when the main control module 1 controls the igniter 2 to ignite, the temperature at the thermocouple 3 has sampling time lower than the temperature, and at the moment, the kitchen range is judged to be unfinished, and the kitchen range fails to ignite.

According to the technical scheme, when the kitchen range is ignited, the content of the ignition state of the kitchen range is judged according to the magnitude relation between the real-time thermocouple potential and the first preset potential threshold value and the initial thermocouple potential, and when the real-time thermocouple potential is larger than the first preset potential threshold value and larger than the initial thermocouple potential, the kitchen range is judged to be successfully ignited; when the real-time thermocouple potential is smaller than or equal to a first preset potential threshold value, and/or when the real-time thermocouple potential is smaller than or equal to an initial thermocouple potential, the incomplete ignition of the kitchen range is judged, the real-time thermocouple potential is respectively compared with the first preset potential threshold value and the initial thermocouple potential, the change trend of the real-time thermocouple potential can be detected, the ignition state of the intelligent kitchen range is detected more accurately and rapidly, the situation that the ignition state is misjudged when the intelligent kitchen range is immediately ignited after the intelligent kitchen range is turned off during a period of time, the use safety of the kitchen range is improved, the ignition of an igniter is controlled, the timing is started, the total timing duration is determined, the situation that the misjudgment of the ignition state of the intelligent kitchen range is caused due to the fact that the judging time is too short is avoided, the situations that the battery electric quantity of the intelligent kitchen range is wasted, the gas leakage time is long and the gas leakage quantity is large are avoided, and the service life of the kitchen range is prolonged.

Fig. 5 is a schematic flow chart of another method for detecting an ignition state of an intelligent kitchen range according to an embodiment of the present invention, and fig. 6 is a schematic structural diagram of another system for detecting an ignition state of an intelligent kitchen range according to an embodiment of the present invention, where the embodiment is optimized based on the above embodiment, as shown in fig. 6, and optionally, the main control module 1 is further coupled with the gas electromagnetic valve 6; the main control module 1 is further used for controlling the igniter 2 to stop discharging and closing the gas electromagnetic valve 6 when the total time is longer than the second preset time after judging that the kitchen range does not finish ignition when the real-time thermocouple potential is smaller than or equal to the first preset potential threshold value and/or the real-time thermocouple potential is smaller than or equal to the initial thermocouple potential; and/or, the main control module 1 is further used for sampling the thermocouple potential in real time after judging that the kitchen range is successfully ignited when the real-time thermocouple potential is greater than the first preset potential threshold value and greater than the initial thermocouple potential, obtaining the real-time thermocouple potential, and closing the gas electromagnetic valve 6 when the real-time thermocouple potential is less than the second preset potential threshold value and the duration is greater than the third preset duration; wherein the first preset potential threshold is greater than the second preset potential threshold.

Optionally, judging the ignition state of the kitchen range according to the magnitude relation between the real-time thermocouple potential and the first preset potential threshold and the initial thermocouple potential, including:

Further, the method also comprises the following steps of:

a timer is started.

Still further, when the real-time thermocouple potential is less than or equal to the first preset potential threshold value and/or the real-time thermocouple potential is less than or equal to the initial thermocouple potential, the method further comprises the following steps of:

when the total time is less than or equal to the second preset time length, continuing to sample the thermocouple potential in real time to obtain the real-time thermocouple potential; the second preset time length is longer than the first preset time length;

and judging the ignition state of the kitchen range according to the magnitude relation between the real-time thermocouple potential and the first preset potential threshold value and the initial thermocouple potential.

Still further, when the real-time thermocouple potential is less than or equal to the first preset potential threshold value, and/or the real-time thermocouple potential is less than or equal to the initial thermocouple potential, the method further comprises the following steps of:

For details not yet described in this embodiment, please refer to the above embodiment, as shown in fig. 5, the method for detecting an ignition state of an intelligent kitchen range includes:

and S310, controlling ignition of the igniter, and starting timing.

S320, sampling the thermocouple potential in real time to obtain an initial thermocouple potential and a real-time thermocouple potential.

S330, when the real-time thermocouple potential is larger than the first preset potential threshold value and larger than the initial thermocouple potential, the ignition of the kitchen range is judged to be successful.

And S340, judging that the kitchen range does not finish ignition when the real-time thermocouple potential is smaller than or equal to a first preset potential threshold value and/or the real-time thermocouple potential is smaller than or equal to an initial thermocouple potential.

S350, continuously sampling the thermocouple potential in real time when the total time is smaller than or equal to a second preset time length, and obtaining the real-time thermocouple potential; the second preset time period is longer than the first preset time period.

With continued reference to fig. 6, the second preset duration is the maximum discharge time in the ignition process of the igniter 2, and illustratively, the second preset duration may be 5-8s, where the second preset duration is longer than the first preset duration, so that the igniter 2 can be ensured to be fully ignited successfully in different environments, and the situation that the ignition time is too long in abnormal ignition to cause waste of battery power can be avoided, which is beneficial to prolonging the service life of the battery. Specifically, when the real-time thermocouple potential is less than or equal to the first preset potential threshold value, and/or when the real-time thermocouple potential is less than or equal to the initial thermocouple potential, after the fact that the kitchen range is not ignited completely is judged, the relationship between the total timing time and the second preset duration can be judged, when the total time is less than or equal to the second preset duration, the igniter 2 does not reach the maximum time range of sufficient ignition success, and the main control module 1 can continue to sample the thermocouple potential in real time to obtain the real-time thermocouple potential.

S360, judging the ignition state of the kitchen range according to the magnitude relation between the real-time thermocouple potential and the first preset potential threshold value and the initial thermocouple potential.

Specifically, with continued reference to fig. 6, in the time range of the second preset duration, the main control module 1 may continuously determine the ignition state of the kitchen range according to the magnitude relation between the real-time thermocouple potential and the first preset potential threshold and the initial thermocouple potential, so as to avoid the situation of misdetermination of the ignition state of the intelligent kitchen range due to too short determination time.

And S370, when the total time is longer than the second preset time, controlling the igniter to stop discharging and closing the gas electromagnetic valve.

Specifically, with continued reference to fig. 6, when the total time is greater than the second preset time, the igniter 2 has reached the maximum time range in which the ignition is successful, but the kitchen range has not yet completed the ignition, that is, there is an abnormality in the ignition process of the kitchen range, the main control module 1 is coupled with the igniter 2, the main control module 1 can control the igniter 2 to stop discharging, which is beneficial to saving electricity, the main control module 1 is coupled with the gas electromagnetic valve 6, the main control module 1 can control the gas electromagnetic valve to be closed, which is beneficial to improving the safety of kitchen equipment.

According to the technical scheme, under the condition that the kitchen range does not finish ignition, the technical scheme is that after the fact that the kitchen range does not finish ignition is judged according to the size relation between the real-time thermocouple potential and the first preset potential threshold and the initial thermocouple potential, and when the total time is smaller than or equal to the second preset time length, the real-time thermocouple potential is continuously sampled, the real-time thermocouple potential is obtained, the ignition state of the kitchen range is judged according to the size relation between the real-time thermocouple potential and the first preset potential threshold and the initial thermocouple potential, when the total time is larger than the second preset time length, the igniter is controlled to stop discharging and the gas electromagnetic valve is closed, the second preset time length is used as a limiting condition of the total time, and the reason that the kitchen range does not finish ignition can be judged more accurately is due to the fact that the judging time is too short, the kitchen range itself ignition faults and the like, and the use safety of kitchen equipment is improved.

Fig. 7 is a schematic flow chart of another intelligent kitchen range ignition state detection system provided by the embodiment of the invention, as shown in fig. 7, a main control module starts timing while controlling ignition of an igniter, specifically, a thermocouple can generate thermocouple potential along with temperature change, a sampling circuit is coupled with the thermocouple, the sampling circuit can sample the thermocouple potential in real time, an operational amplifier circuit is coupled with the sampling circuit, the operational amplifier circuit can amplify the thermocouple potential obtained by real-time sampling, and the main control module is coupled with the operational amplifier circuit, so that the main control module can obtain the real-time thermocouple potential. And when the main control module controls the igniter to ignite, the thermocouple potential acquired by the main control module is the initial thermocouple potential, and after a first preset time length is passed, the main control module starts to acquire the thermocouple potential in real time to acquire the real-time thermocouple potential. The main control module can judge whether the real-time thermocouple potential is larger than a first preset potential threshold value, if so, the main control module also needs to judge whether the real-time thermocouple potential is larger than the initial thermocouple potential, if so, the ignition of the kitchen range is successful, and the igniter stops discharging. If the main control module judges that the real-time thermocouple potential is smaller than or equal to the first preset potential threshold value, and/or if the main control module judges that the real-time thermocouple potential is smaller than or equal to the initial thermocouple potential, the main control module also judges whether the total timing time is longer than the second preset time length, if yes, the main control module indicates that the kitchen stove fails to ignite, the igniter stops discharging and closes the gas electromagnetic valve, if not, the main control module continues to acquire the real-time thermocouple potential in real time, and judges the ignition state of the kitchen stove again according to the magnitude relation between the real-time thermocouple potential and the first preset potential threshold value and the initial thermocouple potential until the kitchen stove is judged to ignite successfully or the kitchen stove is judged to ignite successfully, and the process is ended.

Fig. 8 is a schematic flow chart of another intelligent kitchen range ignition state detection system according to an embodiment of the present invention, where the embodiment is optimized based on the above embodiment. Optionally, judging the ignition state of the kitchen range according to the magnitude relation between the real-time thermocouple potential and the first preset potential threshold and the initial thermocouple potential, including:

Further, the method also comprises the following steps of:

a timer is started.

Further, when the real-time thermocouple potential is greater than the first preset potential threshold and greater than the initial thermocouple potential, after the kitchen range ignition is judged to be successful, the method further comprises the steps of:

closing the gas electromagnetic valve when the real-time thermocouple potential is smaller than the second preset potential threshold value and the duration time is longer than the third preset duration time; wherein the first preset potential threshold is greater than the second preset potential threshold.

For details not yet described in this embodiment, please refer to the above embodiment, as shown in fig. 8, the method for detecting an ignition state of an intelligent kitchen range includes:

s510, controlling ignition of the igniter, and starting timing.

S520, sampling the thermocouple potential in real time to obtain an initial thermocouple potential and a real-time thermocouple potential.

And S530, judging that the kitchen range is successfully ignited when the real-time thermocouple potential is greater than a first preset potential threshold and greater than the initial thermocouple potential.

S540, sampling the thermocouple potential in real time to obtain the real-time thermocouple potential.

Specifically, with continued reference to fig. 6, after the kitchen range is successfully ignited, in the process of cooking by the kitchen range equipment, in order to avoid abnormal flameout in the cooking process, the main control module 1 also needs to sample the thermocouple potential in real time in the cooking process, obtain the real-time thermocouple potential, and analyze the change of the real-time thermocouple potential.

S550, closing the gas electromagnetic valve when the real-time thermocouple potential is smaller than a second preset potential threshold value and the duration time is longer than a third preset duration time; wherein the first preset potential threshold is greater than the second preset potential threshold.

With continued reference to fig. 6, the second preset potential threshold is a thermocouple potential value that can be quickly reached by combustion of the kitchen range equipment in a cold state, and meanwhile, the second preset potential threshold also meets that the thermocouple potential value can be quickly lower than the second preset potential threshold after the kitchen range equipment is flameout, the second preset potential threshold needs to be acquired for multiple times to determine an optimal stable value of the second preset potential threshold, and the first preset potential threshold is larger than the second preset potential threshold. The third preset time period is a time period for the kitchen range equipment to sample the thermocouple electric potentials in real time and obtain a plurality of thermocouple electric potentials in the cooking process, and the third preset time period can be 1-3s. Specifically, when the real-time thermocouple potential is greater than the first preset potential threshold value and greater than the initial thermocouple potential, after the ignition of the kitchen range is judged to be successful, when the real-time thermocouple potential is less than the second preset potential threshold value and the duration is greater than the third preset duration, the situation that abnormal flameout is likely to occur at the kitchen range is indicated, the main control module 1 is coupled with the gas electromagnetic valve 6, the main control module 1 can control the gas electromagnetic valve to be closed, the situations of waste of battery electric quantity, long gas leakage time and large gas leakage amount of the intelligent kitchen range are avoided, the use safety of kitchen equipment is improved, and the detection accuracy of the ignition state of the intelligent kitchen range is improved. And if the real-time thermocouple potential is smaller than the second preset potential threshold value but the duration is smaller than or equal to the third preset duration, continuing to sample the thermocouple potential in real time to obtain the real-time thermocouple potential.

S560, judging that the kitchen range does not finish ignition when the real-time thermocouple potential is smaller than or equal to a first preset potential threshold value and/or the real-time thermocouple potential is smaller than or equal to an initial thermocouple potential.

According to the technical scheme, under the condition that the ignition of the kitchen range is successful, the situations that abnormal flameout and the like of the kitchen range can be detected in time and the gas electromagnetic valve is closed in time are described in detail, after the fact that the ignition of the kitchen range is successful is judged according to the size relation between the real-time thermocouple potential and the first preset potential threshold value and the initial thermocouple potential, the real-time thermocouple potential is sampled, the real-time thermocouple potential is obtained, when the real-time thermocouple potential is smaller than the second preset potential threshold value and the duration is longer than the third preset duration, the gas electromagnetic valve is closed, the situation that the battery electric quantity of the intelligent kitchen range is wasted, the gas leakage time is long and the gas leakage quantity is large is avoided.

Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, rearrangements, combinations, and substitutions can be made by those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims

1. An intelligent kitchen range ignition state detection method is characterized by comprising the following steps:

controlling the igniter to ignite;

2. The method of detecting according to claim 1, wherein determining an ignition state of a kitchen range based on a magnitude relation between the real-time thermocouple potential and a first preset potential threshold and the initial thermocouple potential, comprises:

3. The method of detecting according to claim 2, wherein the controlling of the ignition of the igniter is performed while further comprising:

a timer is started.

4. A method of detecting according to claim 3, wherein sampling the thermocouple potential in real time to obtain an initial thermocouple potential and a real-time thermocouple potential comprises:

determining that the total timing time is longer than a first preset duration;

5. The detection method according to claim 3, wherein when the real-time thermocouple potential is less than or equal to the first preset potential threshold value and/or the real-time thermocouple potential is less than or equal to the initial thermocouple potential, after judging that the kitchen range does not ignite, further comprising:

6. The detection method according to claim 5, wherein when the real-time thermocouple potential is less than or equal to the first preset potential threshold value and/or the real-time thermocouple potential is less than or equal to the initial thermocouple potential, after judging that the kitchen range does not ignite, further comprising:

7. The method of detecting as claimed in claim 3, wherein after judging that the ignition of the kitchen range is successful when the real-time thermocouple potential is greater than the first preset potential threshold and greater than the initial thermocouple potential, further comprising:

8. An intelligent kitchen range ignition state detection system, characterized by being used for executing an intelligent kitchen range ignition state detection method according to any one of claims 1-7;

9. The detection system of claim 8, wherein the master control module is further coupled to a gas solenoid valve;

10. The detection system of claim 8, further comprising a sampling circuit and an op-amp circuit; the input end of the sampling circuit is coupled with the thermocouple, the output end of the sampling circuit is coupled with the input end of the operational amplifier circuit, and the output end of the operational amplifier circuit is coupled with the main control module;