Ignition control method, device and equipment of gas stove and storage medium

Abstract

The application discloses a kind of ignition control method, device, equipment and storage medium of gas stove.The method comprises: after controlling ignition control module to execute ignition operation, chip control solenoid valve control module in the electromagnetic valve executes suction valve operation;Current thermocouple feedback voltage of the thermocouple collected under current acquisition cycle is obtained;Wherein, thermocouple feedback voltage is when monitoring the ignition start signal of gas stove, when heating thermocouple is generated when controlling ignition control module to execute ignition operation;According to the historical thermocouple feedback voltage of the thermocouple collected under last acquisition cycle and current thermocouple feedback voltage, determine whether thermocouple satisfies falling trend judgment condition, and obtain trend judgment result;According to trend judgment result, control ignition control module to stop executing ignition operation, provide the voltage for electromagnetic valve by current thermocouple feedback voltage to keep suction valve, and stop chip power supply to electromagnetic valve.

Description

Technical Field

[0001] This invention relates to the field of automatic control technology, and in particular to an ignition control method, device, equipment and storage medium for a gas stove. Background Technology

[0002] Gas stoves have become an indispensable kitchen appliance in many households. Most gas stoves on the market ignite by pressing down on a knob; when the knob is pressed down, the ignition pulse is continuously ignited, and releasing it stops the ignition. However, after ignition, it is necessary to continue pressing down to ignite; releasing it prematurely will immediately extinguish the flame.

[0003] However, although the existing gas stove ignition method has been upgraded and improved by continuously pressing the start button, it still has the problem of failing to ignite within the set time range, or igniting early within a short period of time but not stopping until the set time ends. The continuous ignition noise generated by continuous ignition will bring a poor user experience to the stove user. Summary of the Invention

[0004] This invention provides an ignition control method, device, equipment, and medium for gas stoves to achieve precise control over the ignition and extinguishing of gas stoves.

[0005] According to one aspect of the present invention, an ignition control method for a gas stove is provided, the gas stove comprising an ignition control module, a suction valve control module, a thermocouple, and a control chip; the control chip is electrically connected to the ignition control module, the suction valve control module, and the thermocouple respectively; the ignition control method is executed by the control chip, the method comprising:

[0006] After the ignition control module performs the ignition operation, the control chip controls the solenoid valve body in the suction valve control module to perform the suction valve operation.

[0007] The current thermocouple feedback voltage of the thermocouple acquired during the current acquisition period is obtained; wherein, the thermocouple feedback voltage is generated when the ignition control module is controlled to perform ignition operation and the thermocouple is heated when the ignition start signal of the gas stove is detected;

[0008] Based on the historical thermocouple feedback voltage and the current thermocouple feedback voltage obtained in the previous acquisition cycle, determine whether the current thermocouple feedback voltage meets the downward trend judgment condition, and obtain the trend judgment result;

[0009] Based on the trend judgment result, the ignition control module is controlled to stop performing the ignition operation, the current thermocouple feedback voltage is used to provide the solenoid valve with the feedback voltage to maintain the suction valve, and the control chip stops supplying power to the solenoid valve.

[0010] According to another aspect of the present invention, an ignition control device for a gas stove is provided, the gas stove including an ignition control module, a suction valve control module, a thermocouple, and a control chip; the control chip is electrically connected to the ignition control module, the suction valve control module, and the thermocouple respectively; the ignition control device is disposed on the control chip, and the device includes:

[0011] The suction valve control module is used to control the solenoid valve body in the suction valve control module to perform a suction valve operation after controlling the ignition control module to perform an ignition operation.

[0012] The feedback voltage acquisition module is used to acquire the current thermocouple feedback voltage of the thermocouple acquired in the current acquisition cycle; wherein, the thermocouple feedback voltage is generated when the ignition control module is controlled to perform ignition operation and the thermocouple is heated when the ignition start signal of the gas stove is detected;

[0013] The judgment result determination module is used to determine whether the current thermocouple feedback voltage meets the downward trend judgment condition based on the historical thermocouple feedback voltage and the current thermocouple feedback voltage collected in the previous collection cycle, and to obtain the trend judgment result;

[0014] The shutdown operation control module is used to control the ignition control module to stop performing ignition operations based on the trend judgment result, provide the voltage to the solenoid valve to maintain the suction valve through the current thermocouple feedback voltage, and stop the control chip from supplying power to the solenoid valve.

[0015] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0016] At least one processor; and

[0017] A memory communicatively connected to the at least one processor; wherein,

[0018] The memory stores a computer program that can be executed by the at least one processor, which enables the at least one processor to perform the ignition control method for a gas stove according to any embodiment of the present invention.

[0019] According to another aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions for causing a processor to execute and implement the ignition control method of a gas stove according to any embodiment of the present invention.

[0020] The technical solution of this invention obtains the current thermocouple feedback voltage of the thermocouple acquired in the current acquisition cycle. Based on the historical thermocouple feedback voltage and the current thermocouple feedback voltage acquired in the previous acquisition cycle, it determines whether the thermocouple meets the condition for judging the decreasing feedback voltage trend, obtains the trend judgment result, and controls the ignition control module to stop performing the ignition operation according to the trend judgment result. It provides the voltage for holding the solenoid valve through the current thermocouple feedback voltage and stops the control chip from supplying power to the solenoid valve, thereby realizing the ignition of the gas stove. It can quickly stop ignition after the flame appears, accurately control the active suction valve, and accurately control the control chip to supply power to the solenoid valve after the thermocouple feedback voltage is sufficient to hold the solenoid valve body.

[0021] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1A This is a schematic diagram of the system structure of a gas stove according to Embodiment 1 of the present invention;

[0024] Figure 1B This is a flowchart of an ignition control method for a gas stove according to Embodiment 1 of the present invention;

[0025] Figure 2 This is a flowchart of an ignition control method for a gas stove according to Embodiment 2 of the present invention;

[0026] Figure 3 This is a flowchart of an ignition control method for a gas stove according to Embodiment 3 of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of an ignition control device for a gas stove according to Embodiment 4 of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of an electronic device that implements the ignition control method for a gas stove according to an embodiment of the present invention. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] Example 1

[0032] like Figure 1A The diagram shows a system structure of a gas stove. The gas stove 10 includes an ignition control module 101, a suction valve control module 102, a thermocouple 103, and a control chip 104. The control chip 104 is electrically connected to the ignition control module 101, the suction valve control module 102, and the thermocouple 103. When ignition is required, the control chip 104 can control the IO (Input / Output) port electrically connected to the ignition control module 101 to output a high-level signal, and control the IO port electrically connected to the ignition control module 101 to output a low-level signal when ignition is not required. Similarly, when suction valve operation is required, the control chip 104 can control the IO terminal electrically connected to the suction valve control module 102 to output a high-level signal, and control the IO terminal electrically connected to the suction valve control module 102 to output a low-level signal when suction valve operation is not required. The suction valve control module 102 includes a solenoid valve, which has two coils that are controlled and powered by the control chip 104 and the thermocouple 103, respectively.

[0033] Thermocouple 103 is a thermally sensitive device installed on the burner head of gas stove 10. It has a cold end and a hot end. When the ignition control module 101 of the gas stove performs the ignition operation, it controls the combustion of the burner head. The hot end of thermocouple 103 is heated by the combustion flame until its temperature rises. Therefore, the temperature difference between the cold and hot ends will cause thermocouple 103 to generate a weak feedback voltage. The weak feedback voltage can maintain the engagement of the solenoid valve body in adsorption control module 102.

[0034] An operational amplifier can be installed between the control chip 104 and the thermocouple 103. The feedback voltage generated by the thermocouple 103 can enter the control chip 104 through the operational amplifier. The control chip 104 determines the trend of the feedback voltage change of the thermocouple 103 based on the continuously acquired feedback voltage, thereby accurately controlling the ignition control module 101 to stop ignition and controlling the control chip 104 to stop supplying power to the solenoid valve.

[0035] It is understandable that if the feedback voltage of thermocouple 103 obtained by control chip 104 enters the IO terminal of control chip 104 through operational amplifier and the voltage shows a downward trend, it can be concluded that the hot junction of thermocouple 103 is being burned and the temperature difference is gradually increasing; if the feedback voltage of thermocouple 103 obtained by control chip 104 enters the control chip 104 through operational amplifier and the voltage shows an upward trend, it can be concluded that the temperature difference of thermocouple 103 is decreasing and gradually converging to the same temperature.

[0036] Figure 1B This is a flowchart of an ignition control method for a gas stove according to Embodiment 1 of the present invention. This embodiment is applicable to situations requiring precise control of the ignition and flameout of a gas stove. The method can be executed by an ignition control device of the gas stove, which can be implemented in hardware and / or software. This ignition control device can be configured in an electronic device, which can be a control chip within the gas stove. Figure 1B As shown, the method includes:

[0037] S110. After the ignition control module performs the ignition operation, the control chip controls the solenoid valve in the suction valve module to perform the suction valve operation.

[0038] S120: Obtain the current thermocouple feedback voltage of the thermocouple acquired in the current acquisition cycle.

[0039] The thermocouple feedback voltage is generated when the ignition control module heats the thermocouple during the ignition operation after the ignition control module performs the ignition operation, and after the ignition control module performs the ignition operation, it controls the solenoid valve body in the suction valve control module to perform the suction valve operation.

[0040] For example, when the control chip detects the ignition start signal of the gas stove, it controls the ignition control module to perform an ignition operation. Specifically, the control chip can send an ignition output signal to the ignition control module, so that the ignition control module can perform the ignition operation upon receiving the ignition output signal. The ignition start signal can be generated when the user of the gas stove presses down the stove's power knob. After controlling the ignition control module to perform the ignition operation, the control chip controls the solenoid valve body in the suction valve control module to perform a suction valve operation. Specifically, the control chip can send a suction valve output signal to the suction valve control module, so that the suction valve control module can perform the suction valve operation upon receiving the suction valve output signal.

[0041] After the ignition control module performs the ignition operation, the burner of the gas stove will ignite. Simultaneously, the combustion flame will cause the thermocouple to generate a thermocouple feedback voltage. The control chip can monitor this in real time and collect the feedback voltage generated by the thermocouple at preset time intervals. The preset time interval can be pre-set by relevant technicians, and its value can be set sufficiently small to ensure the continuity of the collected feedback voltage.

[0042] The current thermocouple feedback voltage can be the thermocouple feedback voltage acquired by the control chip in the current acquisition cycle, and the acquisition cycle that is adjacent to the current acquisition cycle and located before the current acquisition cycle is the previous acquisition cycle.

[0043] S130. Based on the historical thermocouple feedback voltage and the current thermocouple feedback voltage obtained in the previous acquisition cycle, determine whether the current thermocouple feedback voltage meets the downward trend judgment condition, and obtain the trend judgment result.

[0044] If the current acquisition period is not the first acquisition period, the historical thermocouple feedback voltage and the current thermocouple feedback voltage acquired in the previous acquisition period are obtained. Based on the historical thermocouple feedback voltage and the current thermocouple feedback voltage, it is determined whether the current thermocouple feedback voltage meets the downward trend judgment condition, and the trend judgment result is obtained.

[0045] For example, if the current thermocouple feedback voltage is less than the historical thermocouple feedback voltage, then the current thermocouple feedback voltage is determined to meet the downward trend judgment condition, and a trend judgment result of the thermocouple having a downward trend is obtained; if the current thermocouple feedback voltage is not less than the historical thermocouple feedback voltage, then the current thermocouple feedback voltage is determined not to meet the downward trend judgment condition, and a trend judgment result of the thermocouple not having a downward trend is obtained.

[0046] It should be noted that if the current acquisition cycle is the first acquisition cycle, the thermocouple feedback voltage will continue to be acquired. After at least two thermocouple feedback voltage acquisitions, the thermocouple will be determined to meet the downward trend judgment condition based on the results of at least two thermocouple feedback voltage acquisitions, and the trend judgment result will be obtained.

[0047] S140. Based on the trend judgment result, control the ignition control module to stop performing the ignition operation, provide the solenoid valve with the feedback voltage to hold the valve through the current thermocouple feedback voltage, and stop the control chip from supplying power to the solenoid valve.

[0048] For example, if the trend judgment result indicates that the thermocouple has a downward trend, the ignition control module stops performing the ignition operation, provides the solenoid valve with the feedback voltage to maintain the suction valve through the current thermocouple feedback voltage, and stops the control chip from supplying power to the solenoid valve.

[0049] It should be noted that the solenoid valve in the suction valve control module has two coils. One coil is powered by the control chip, and the other coil is powered by the thermocouple. If the trend judgment result shows that the thermocouple has a downward trend, the ignition control module is controlled to stop performing the ignition operation, and the suction valve control module is controlled to open the solenoid valve. Specifically, this can be done by disconnecting the power supply coil of the control chip, i.e., stopping, and the power supply of the other coil is provided by the feedback voltage of the thermocouple. The feedback voltage of the thermocouple is sufficient to keep the solenoid valve in the suction state.

[0050] The technical solution of this invention obtains the current thermocouple feedback voltage of the thermocouple acquired in the current acquisition cycle. Based on the historical thermocouple feedback voltage acquired in the previous acquisition cycle and the current thermocouple feedback voltage, it determines whether the thermocouple feedback voltage meets the downward trend judgment condition, obtains the trend judgment result, and controls the ignition control module to stop performing the ignition operation according to the trend judgment result. It provides the voltage for holding the solenoid valve with the current thermocouple feedback voltage and stops the control chip from supplying power to the solenoid valve, thereby realizing the ignition of the gas stove. It can quickly stop ignition after the flame appears, accurately control the active suction valve, and accurately control the stop of the suction valve operation after the thermocouple feedback voltage is sufficient to hold the solenoid valve body.

[0051] Example 2

[0052] Figure 2 This is a flowchart of an ignition control method for a gas stove according to Embodiment 2 of the present invention. This embodiment is an optimization and improvement based on the above technical solutions.

[0053] Furthermore, the step "determine whether the thermocouple feedback voltage meets the downward trend judgment condition based on the historical thermocouple feedback voltage and the current thermocouple feedback voltage obtained in the previous acquisition cycle, and obtain the trend judgment result" is refined into "obtain the historical cumulative count in the previous acquisition cycle; determine the current cumulative count in the current acquisition cycle based on the historical thermocouple feedback voltage and the current thermocouple feedback voltage; determine whether the thermocouple feedback voltage meets the downward trend judgment condition based on the current cumulative count, and obtain the trend judgment result." This improves the method for determining the trend judgment result.

[0054] Furthermore, the step "Based on the trend judgment result, control the ignition control module to stop performing the ignition operation, provide the solenoid valve with the voltage to maintain the suction valve through the current thermocouple feedback voltage, and stop the control chip from supplying power to the solenoid valve" is refined to "If the trend judgment result shows that the thermocouple feedback voltage has a downward trend, then control the ignition control module to stop performing the ignition operation, and determine whether the current thermocouple feedback voltage meets the valve body adsorption condition; if so, then provide the solenoid valve with the voltage to maintain the suction valve through the current thermocouple feedback voltage, and stop the control chip from supplying power to the solenoid valve." This refines the control method.

[0055] It should be noted that for parts not described in detail in the embodiments of the present invention, please refer to the descriptions in other embodiments. For example... Figure 2 As shown, the method includes the following specific steps:

[0056] S210. After the ignition control module performs the ignition operation, the control chip controls the solenoid valve in the suction valve control module to perform the suction valve operation.

[0057] S220: Obtain the current thermocouple feedback voltage of the thermocouple acquired in the current acquisition cycle.

[0058] The thermocouple feedback voltage is generated when the ignition control module heats the thermocouple during the ignition operation after the ignition control module performs the ignition operation, and after the ignition control module performs the ignition operation, it controls the solenoid valve body in the suction valve control module to perform the suction valve operation.

[0059] S230: Obtain the historical cumulative number of times in the previous collection cycle.

[0060] Understandably, since the control chip continuously acquires the thermocouple feedback voltage for each acquisition cycle at preset time intervals, for any acquisition cycle that is not the first one, after obtaining the thermocouple feedback voltage for that acquisition cycle, it can be compared with the thermocouple points from the previous acquisition cycle to determine whether there is a decreasing trend in the feedback voltage during that acquisition cycle. If so, the number of consecutive decreases is incremented by 1, thus obtaining the cumulative number of times for each acquisition cycle. The historical cumulative number is the cumulative number of consecutive decreases obtained in the previous acquisition cycle.

[0061] S240. Based on the historical thermocouple feedback voltage and the current thermocouple feedback voltage, determine the current cumulative count in the current acquisition cycle.

[0062] For example, based on the historical thermocouple feedback voltage and the current thermocouple feedback voltage, it can be determined whether the thermocouple in the current acquisition period is showing a potential decrease trend, and the current cumulative number of acquisitions in the current acquisition period can be determined based on the judgment result.

[0063] In one optional embodiment, determining the current cumulative count in the current acquisition period based on the historical thermocouple feedback voltage and the current thermocouple feedback voltage includes: if the current thermocouple feedback voltage is less than the historical thermocouple feedback voltage, then determining the current cumulative count in the current acquisition period based on the historical cumulative count and a preset cumulative count; and if the current thermocouple feedback voltage is not less than the historical thermocouple feedback voltage, then using a preset reference count as the current cumulative count in the current acquisition period.

[0064] The cumulative count and the reference count can be preset by relevant technical personnel. For example, the cumulative count can be 1 time, and the reference count can be 0 times.

[0065] For example, if the current thermocouple feedback voltage is less than the historical thermocouple feedback voltage, and the set accumulation count is 1, the reference count is 0, and the historical accumulation count is 3, then the current accumulation count in the current acquisition period can be determined to be 4. If the current thermocouple feedback voltage is not less than the historical thermocouple feedback voltage, then the current accumulation count in the current acquisition period can be determined to be 0.

[0066] S250. Based on the current cumulative count, determine whether the thermocouple meets the condition for judging the decreasing trend of feedback voltage, and obtain the trend judgment result.

[0067] The feedback voltage decline trend judgment condition can be preset by relevant technical personnel. For example, the feedback voltage decline trend judgment condition can be to judge whether the current cumulative number of thermocouples is greater than or not greater than a preset cumulative number threshold.

[0068] In one optional embodiment, based on the current cumulative count, it is determined whether the thermocouple meets the feedback voltage decline trend judgment condition, and a trend judgment result is obtained, including: if the current cumulative count is greater than a preset cumulative count threshold, it is determined that the thermocouple meets the feedback voltage decline trend judgment condition, and a trend judgment result indicating that the thermocouple has a decline trend is obtained.

[0069] If the current cumulative count is not greater than the preset cumulative count threshold, the acquisition of thermocouple feedback voltage will continue until the cumulative count is greater than the preset cumulative count threshold.

[0070] The cumulative number of times threshold can be preset by relevant technical personnel based on actual experience or experimental values. For example, the cumulative number of times threshold can be 8 times.

[0071] S260. If the trend judgment result shows that the thermocouple feedback voltage has a downward trend, the ignition control module is controlled to stop performing the ignition operation and determine whether the current thermocouple feedback voltage meets the valve body adsorption conditions.

[0072] The valve body adsorption conditions can be preset by relevant technical personnel. For example, the valve body adsorption conditions can be determined by whether the current thermocouple feedback voltage is lower than a preset normal feedback voltage value. For example, the normal feedback voltage value can be 1.5mV.

[0073] S270, if so, then the current thermocouple feedback voltage is used to provide the voltage to hold the solenoid valve in place, and the control chip stops supplying power to the solenoid valve.

[0074] For example, if it is determined that the current thermocouple feedback voltage meets the valve body adsorption condition, then the current thermocouple feedback voltage is used to provide the solenoid valve with a voltage to maintain the adsorption valve position, and the control chip stops supplying power to the solenoid valve. If it is determined that the current thermocouple feedback voltage does not meet the valve body adsorption condition, then the solenoid valve does not stop the adsorption valve operation. Specifically, maintaining the adsorption valve position involves supplying power to one coil of the solenoid valve through the thermocouple feedback voltage, and the feedback voltage of the thermocouple is sufficient to keep the solenoid valve in the adsorption valve open state. At this time, the control chip can be disconnected from supplying power to the other coil of the solenoid valve.

[0075] This embodiment's technical solution obtains the historical cumulative count from the previous acquisition cycle, determines the current cumulative count in the current acquisition cycle based on the historical thermocouple feedback voltage and the current thermocouple feedback voltage, and then determines whether the thermocouple meets the feedback voltage decreasing trend judgment condition based on the current cumulative count, thus obtaining the trend judgment result. By introducing the judgment of the cumulative number of feedback voltage decreasing trends, the accuracy of the trend judgment result is improved. When the trend judgment result indicates that the thermocouple has a decreasing trend, the ignition control module stops performing the ignition operation and determines whether the current thermocouple feedback voltage meets the valve body adsorption condition. If so, the current thermocouple feedback voltage is used to provide the voltage to maintain the valve's suction position to the solenoid valve, and the control chip stops supplying power to the solenoid valve, further realizing precise control of the suction valve and ignition. The above technical solution automatically judges the thermocouple feedback voltage and uses the trend change of the thermocouple feedback voltage to perform a closed-loop check for successful ignition, identify the ignition flame in advance, and use the thermocouple feedback voltage for precise detection and control of the suction valve time to ensure normal flame combustion. At the same time, it does not damage the original flame generation thermocouple maintains the physical protection function of the suction valve to prevent flameout. Under normal gas supply conditions, it ensures that ignition can be achieved every time.

[0076] Example 3

[0077] Figure 3 This is a flowchart illustrating an ignition control method for a gas stove according to Embodiment 3 of the present invention. This embodiment provides a preferred example based on the above embodiments.

[0078] like Figure 3 As shown, the method includes the following specific steps:

[0079] S310. When the ignition start signal of the gas stove is detected, the ignition control module is controlled to perform the ignition operation to heat the thermocouple and generate the thermocouple feedback voltage.

[0080] S320, control the valve body of the solenoid valve in the suction valve control module to perform suction valve operation;

[0081] S330. Based on a preset time interval, the thermocouple feedback voltage generated by the thermocouple is collected, and the thermocouple feedback voltage is digitally filtered to obtain the current thermocouple feedback voltage under the current collection period after filtering.

[0082] S340. Determine whether the current thermocouple feedback voltage is lower than the historical thermocouple feedback voltage of the previous sampling period; if yes, execute S350A; if no, execute S350B.

[0083] S350A: Add one to the historical cumulative count of the previous sampling period to obtain the current cumulative count, and then execute S360;

[0084] The historical cumulative count represents the number of times the thermocouple feedback voltage has continuously decreased up to the previous sampling period. "Continuous" here indicates the continuity of the decrease in thermocouple feedback voltage, meaning that the thermocouple feedback voltage obtained in the previous few sampling periods has consistently shown a downward trend.

[0085] S350B: Clear the historical cumulative count to zero, obtain the current cumulative count as 0, and execute S370;

[0086] Among them, resetting the historical cumulative number of times is equivalent to setting the preset reference number to 0 times.

[0087] S360. Determine if the current cumulative count is greater than 8; if yes, execute S380, and then execute S370 after S380 is completed; if no, execute S370.

[0088] S370: Determine whether the current thermocouple feedback voltage is lower than the normal feedback voltage value of 1.5mV; if yes, execute S390; if no, execute S330.

[0089] S380, Determine that the thermocouple is trending downwards and control the ignition control module to stop performing the ignition operation;

[0090] S390. If it is determined that the current thermocouple is sufficiently actuated to hold the valve body, the current thermocouple feedback voltage is used to provide the voltage to hold the valve in place for the solenoid valve, and the control chip stops supplying power to the solenoid valve. At the same time, if the ignition control module has not stopped performing the ignition operation, the ignition control module is controlled to stop performing the ignition operation.

[0091] Example 4

[0092] Figure 4 This is a schematic diagram of the structure of an ignition control device for a gas stove according to Embodiment 4 of the present invention. The ignition control device for a gas stove provided in this embodiment of the invention is suitable for situations requiring precise control of the ignition and flameout of a gas stove. This ignition control device can be implemented in hardware and / or software, and can be configured in a control chip, such as... Figure 4 As shown, the device specifically includes: a suction valve control module 401, a feedback voltage acquisition module 402, a judgment result determination module 403, and a shutdown operation control module 404.

[0093] in,

[0094] The suction valve control module 401 is used to control the solenoid valve body in the suction valve control module to perform a suction valve operation after controlling the ignition control module to perform an ignition operation.

[0095] The feedback voltage acquisition module 402 is used to acquire the current thermocouple feedback voltage of the thermocouple acquired in the current acquisition cycle; wherein, the thermocouple feedback voltage is generated when the ignition control module is controlled to perform ignition operation and the thermocouple is heated when the ignition start signal of the gas stove is detected.

[0096] The judgment result determination module 403 is used to determine whether the thermocouple meets the feedback voltage decline trend judgment condition based on the historical thermocouple feedback voltage and the current thermocouple feedback voltage collected in the previous collection cycle, and to obtain the trend judgment result;

[0097] The shutdown operation control module 404 is used to control the ignition control module to stop performing ignition operations and control the control chip to stop supplying power to the solenoid valve based on the trend judgment result.

[0098] The technical solution of this invention obtains the current thermocouple feedback voltage of the thermocouple acquired in the current acquisition cycle. Based on the historical thermocouple feedback voltage acquired in the previous acquisition cycle and the current thermocouple feedback voltage, it determines whether the thermocouple meets the condition for judging the decreasing feedback voltage trend, obtains the trend judgment result, and controls the ignition control module to stop performing the ignition operation according to the trend judgment result. It provides the voltage for holding the solenoid valve with the current thermocouple feedback voltage and stops the control chip from supplying power to the solenoid valve, thereby realizing the ignition of the gas stove. It can quickly stop ignition after the flame appears, accurately control the active suction valve, and accurately control the stop of the suction valve operation after the thermocouple feedback voltage is sufficient to hold the solenoid valve body.

[0099] Optionally, the judgment result determination module includes:

[0100] The historical count acquisition unit is used to acquire the historical cumulative count in the previous collection period;

[0101] The current count determination unit is used to determine the current cumulative count in the current acquisition cycle based on the historical thermocouple feedback voltage and the current thermocouple feedback voltage.

[0102] The judgment result determination unit is used to determine whether the thermocouple meets the feedback voltage decrease trend judgment condition based on the current cumulative number of times, and obtain the trend judgment result.

[0103] Optionally, the current count determination unit is specifically used for:

[0104] If the current thermocouple feedback voltage is less than the historical thermocouple feedback voltage, then the current cumulative count for the current acquisition period is determined based on the historical cumulative count and the preset cumulative count; and,

[0105] If the current thermocouple feedback voltage is not less than the historical thermocouple feedback voltage, then the preset reference number will be used as the current cumulative number under the current acquisition cycle.

[0106] Optionally, the determination result unit is specifically used for:

[0107] If the current cumulative count is greater than the preset cumulative count threshold, then the thermocouple is determined to meet the feedback voltage decrease trend judgment condition, and the trend judgment result of the thermocouple having a decrease trend is obtained.

[0108] Optionally, the shutdown operation control module 403 is specifically used for:

[0109] If the trend judgment result indicates that the thermocouple has a downward trend, then the ignition control module is controlled to stop performing the ignition operation, and it is determined whether the current thermocouple feedback voltage meets the valve body adsorption condition.

[0110] If so, the current thermocouple feedback voltage is used to provide the voltage to maintain the suction valve of the solenoid valve, and the control chip stops supplying power to the solenoid valve.

[0111] The ignition control device for a gas stove provided in this embodiment of the invention can execute the ignition control method for a gas stove provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the method.

[0112] Example 5

[0113] Figure 5 A schematic diagram of an electronic device 50 that can be used to implement embodiments of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0114] like Figure 5As shown, the electronic device 50 includes at least one processor 51 and a memory, such as a read-only memory (ROM) 52 and a random access memory (RAM) 53, communicatively connected to the at least one processor 51. The memory stores computer programs executable by the at least one processor. The processor 51 can perform various appropriate actions and processes based on the computer program stored in the ROM 52 or loaded into the RAM 53 from storage unit 58. The RAM 53 can also store various programs and data required for the operation of the electronic device 50. The processor 51, ROM 52, and RAM 53 are interconnected via a bus 54. An input / output (I / O) interface 55 is also connected to the bus 54.

[0115] Multiple components in electronic device 50 are connected to I / O interface 55, including: input unit 56, such as keyboard, mouse, etc.; output unit 57, such as various types of monitors, speakers, etc.; storage unit 58, such as disk, optical disk, etc.; and communication unit 59, such as network card, modem, wireless transceiver, etc. Communication unit 59 allows electronic device 50 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0116] Processor 51 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 51 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 51 performs the various methods and processes described above, such as the ignition control method of a gas stove.

[0117] In some embodiments, the ignition control method for a gas stove can be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 58. In some embodiments, part or all of the computer program can be loaded and / or installed on electronic device 50 via ROM 52 and / or communication unit 59. When the computer program is loaded into RAM 53 and executed by processor 51, one or more steps of the ignition control method for a gas stove described above can be performed. Alternatively, in other embodiments, processor 51 can be configured to perform the ignition control method for a gas stove by any other suitable means (e.g., by means of firmware).

[0118] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0119] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0120] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0121] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0122] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0123] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0124] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and no limitation is imposed herein.

[0125] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. An ignition control method for a gas stove, characterized in that, The gas stove includes an ignition control module, a suction valve control module, a thermocouple, and a control chip; the control chip is electrically connected to the ignition control module, the suction valve control module, and the thermocouple, respectively. The ignition control method is executed by the control chip, and the method includes: After the ignition control module performs the ignition operation, the control chip controls the solenoid valve in the suction valve control module to perform the suction valve operation. The current thermocouple feedback voltage of the thermocouple acquired during the current acquisition period is obtained; wherein, the thermocouple feedback voltage is generated when the ignition control module is controlled to perform ignition operation and the thermocouple is heated when the ignition start signal of the gas stove is detected; Based on the historical thermocouple feedback voltage and the current thermocouple feedback voltage obtained in the previous acquisition cycle, determine whether the current thermocouple feedback voltage meets the downward trend judgment condition, and obtain the trend judgment result; Based on the trend judgment result, the ignition control module is controlled to stop performing the ignition operation, and the current thermocouple feedback voltage is used to provide the solenoid valve with the voltage to maintain the suction valve, and the control chip is stopped from supplying power to the solenoid valve. This includes: if the trend judgment result indicates that the thermocouple has a downward trend, the ignition control module is controlled to stop performing the ignition operation, and it is determined whether the current thermocouple feedback voltage meets the valve body adsorption condition; if so, the current thermocouple feedback voltage is used to provide the solenoid valve with the voltage to maintain the suction valve, and the control chip is stopped from supplying power to the solenoid valve.

2. The method according to claim 1, characterized in that, The process involves determining whether the current thermocouple feedback voltage meets the downward trend judgment condition based on the historical thermocouple feedback voltage obtained in the previous acquisition cycle and the current thermocouple feedback voltage, thereby obtaining the trend judgment result, including: Get the historical cumulative count from the previous collection period; Based on the historical thermocouple feedback voltage and the current thermocouple feedback voltage, determine the current cumulative count in the current acquisition cycle; Based on the current cumulative count, determine whether the current thermocouple feedback voltage meets the downward trend judgment condition, and obtain the trend judgment result.

3. The method according to claim 2, characterized in that, The step of determining the current cumulative count in the current acquisition period based on the historical thermocouple feedback voltage and the current thermocouple feedback voltage includes: If the current thermocouple feedback voltage is less than the historical thermocouple feedback voltage, then the current cumulative count for the current acquisition period is determined based on the historical cumulative count and the preset cumulative count; and, If the current thermocouple feedback voltage is not less than the historical thermocouple feedback voltage, then the preset reference number will be used as the current cumulative number under the current acquisition cycle.

4. The method according to claim 2, characterized in that, The step of determining whether the current thermocouple feedback voltage meets the downward trend judgment condition based on the current cumulative count, and obtaining the trend judgment result, includes: If the current cumulative count is greater than the preset cumulative count threshold, then the thermocouple is determined to meet the downward trend judgment condition, and the trend judgment result of the thermocouple having a downward trend is obtained.

5. An ignition control device for a gas stove, characterized in that, The gas stove includes an ignition control module, a suction valve control module, a thermocouple, and a control chip; the control chip is electrically connected to the ignition control module, the suction valve control module, and the thermocouple, respectively. The ignition control device is configured on the control chip, and the device includes: The suction valve control module is used to control the solenoid valve body in the suction valve control module to perform a suction valve operation after controlling the ignition control module to perform an ignition operation. The feedback voltage acquisition module is used to acquire the current thermocouple feedback voltage of the thermocouple acquired in the current acquisition cycle; wherein, the thermocouple feedback voltage is generated when the ignition control module is controlled to perform ignition operation and the thermocouple is heated when the ignition start signal of the gas stove is detected; The judgment result determination module is used to determine whether the current thermocouple feedback voltage meets the downward trend judgment condition based on the historical thermocouple feedback voltage and the current thermocouple feedback voltage collected in the previous collection cycle, and to obtain the trend judgment result; The shutdown operation control module is used to control the ignition control module to stop performing ignition operation based on the trend judgment result, provide the voltage to the solenoid valve to hold the valve through the current thermocouple feedback voltage, and stop the control chip from supplying power to the solenoid valve. The shutdown operation control module includes: if the trend judgment result indicates that the thermocouple has a downward trend, then controlling the ignition control module to stop performing the ignition operation, and determining whether the current thermocouple feedback voltage meets the valve body adsorption condition; if so, then providing the solenoid valve with the voltage to maintain the adsorption valve through the current thermocouple feedback voltage, and stopping the control chip from supplying power to the solenoid valve.

6. The apparatus according to claim 5, characterized in that, The judgment result determination module includes: The historical count acquisition unit is used to acquire the historical cumulative count in the previous collection period; The current count determination unit is used to determine the current cumulative count in the current acquisition cycle based on the historical thermocouple feedback voltage and the current thermocouple feedback voltage. The judgment result determination unit is used to determine whether the current thermocouple feedback voltage meets the downward trend judgment condition based on the current cumulative number of times, and to obtain the trend judgment result.

7. The apparatus according to claim 6, characterized in that, The current count determination unit is specifically used for: If the current thermocouple feedback voltage is less than the historical thermocouple feedback voltage, then the current cumulative count in the current acquisition cycle is determined based on the historical cumulative count and the preset cumulative count. as well as, If the current thermocouple feedback voltage is not less than the historical thermocouple feedback voltage, then the preset reference number will be used as the current cumulative number under the current acquisition cycle.

8. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the ignition control method of the gas stove according to any one of claims 1-4.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed by a processor, implement the ignition control method of the gas stove according to any one of claims 1-4.

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