Control method for intelligently calibrating ignition frequency

Abstract

The invention relates to the technical field of kitchen appliances, in particular to a control method for intelligently calibrating the ignition frequency, which realizes accurate calibration of the ignition frequency of gas equipment by dynamically adjusting the PWM output duty ratio. In combination with a proportional calibration algorithm and a nonvolatile storage technology, the system can adapt to ignition requirements under different power supply conditions, and the stability and reliability of the ignition frequency are improved through an intelligent calibration process; in addition, the system further ensures the safe operation of the gas equipment by periodically evaluating the calibration effect and optimizing the calibration process.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to a control method for intelligently calibrating an ignition frequency. Background Art

[0002] Gas equipment is an important device widely used in modern industry and daily life. The accuracy and stability of its ignition frequency have a decisive impact on the safe operation and performance of the equipment. In actual applications, the ignition frequency of gas equipment is affected by various factors. For example, different power supply types can cause deviations in the ignition frequency, thereby affecting the reliability and safety of ignition. In addition, environmental factors (such as temperature and humidity changes) and equipment aging can also cause ignition frequency drift, further increasing safety risks. Although traditional manual calibration methods can solve the problem of ignition frequency deviation to a certain extent, they are time-consuming and labor-intensive, difficult to meet the needs of large-scale production, and cannot adapt to complex and changing usage conditions in real time.

[0003] Currently, achieving precise control and automatic adjustment of the ignition frequency of gas equipment faces numerous technical difficulties, including identifying and adapting the power supply type, determining the target ignition frequency, real-time monitoring and error analysis, and parameter optimization. Especially when powered by batteries, ignition frequency control is even more complex due to large voltage fluctuations. The target ignition frequency and the allowable error range need to be dynamically adjusted according to different voltage ranges. At the same time, improving calibration efficiency while ensuring calibration accuracy and balancing safety and production efficiency are also technical challenges that need to be addressed urgently. Small fluctuations in ignition frequency can cause serious safety incidents, while overly frequent calibration can interfere with the normal use of the equipment and reduce user satisfaction.

[0004] Therefore, the industry urgently needs to develop an intelligent, adaptive method for ignition frequency calibration of gas equipment that can quickly respond to various influencing factors, continuously optimize control parameters, and improve overall equipment performance while ensuring safety and reliability. This technology requires comprehensive consideration of multiple aspects, including power supply type identification, dynamic adjustment of PWM output duty cycle, real-time ignition frequency monitoring, error analysis, and calibration coefficient optimization, to achieve precise control and efficient calibration of gas equipment ignition frequency. Summary of the Invention

[0005] The purpose of the present invention is to provide a control method for intelligently calibrating the ignition frequency in view of the above-mentioned deficiencies in the prior art.

[0006] The purpose of the present invention is achieved through the following technical solution: a control method for intelligently calibrating the ignition frequency, comprising the following steps:

[0007] Obtain the power supply type of the gas equipment and determine the target ignition frequency and the allowable error range based on the power supply type;

[0008] Initialize the PWM output duty cycle of the ignition module and reset the continuous satisfaction counter to zero;

[0009] Obtain the initial ignition frequency of the ignition module, and calculate the required PWM output duty cycle based on the target ignition frequency and the initial ignition frequency;

[0010] Drive the ignition module to perform ignition operation through the currently required PWM output duty cycle, and obtain the real-time ignition frequency during the ignition operation;

[0011] Determine the frequency difference between the target ignition frequency and the real-time ignition frequency, and determine whether to adjust the PWM output duty cycle based on the frequency difference;

[0012] If the frequency difference is within the allowable error range, the continuous satisfaction counter is increased; if the frequency difference exceeds the error range, the PWM output duty cycle is adjusted according to the frequency difference and the preset calibration coefficient, and the continuous satisfaction counter is reset;

[0013] If the number of times the counter is satisfied continuously does not reach the preset number N, the ignition module is repeatedly driven to perform the ignition operation, real-time ignition frequency acquisition, frequency difference analysis and PWM output duty cycle adjustment process;

[0014] The PWM output duty cycle after calibration is stored in a non-volatile storage medium.

[0015] Furthermore, the power supply type includes two modes: battery-powered and non-battery-powered;

[0016] Furthermore, the steps of obtaining the power supply type of the gas equipment and determining the target ignition frequency and the allowable error range according to the power supply type are specifically as follows:

[0017] Detect the power supply mode of the gas equipment. If it is battery-powered, select the corresponding target ignition frequency and error range based on the voltage value range; if it is not battery-powered, use a fixed target ignition frequency and error range for calibration.

[0018] Furthermore, the step of adjusting the PWM output duty cycle according to the frequency difference and the preset calibration coefficient is specifically as follows:

[0019] If the real-time ignition frequency is lower than the target ignition frequency, the PWM output duty cycle is increased to increase the ignition frequency; if the real-time ignition frequency is higher than the target ignition frequency, the PWM output duty cycle is reduced to reduce the ignition frequency; if the real-time ignition frequency is equal to the target ignition frequency, the current PWM output duty cycle is kept unchanged;

[0020] When the frequency difference exceeds the allowable error range, the adjustment amount is calculated through the proportional calibration algorithm based on the frequency difference and the preset calibration coefficient, and the PWM output duty cycle is dynamically updated.

[0021] Furthermore, the steps of calculating the adjustment amount by using the proportional calibration algorithm and dynamically updating the PWM output duty cycle are specifically as follows:

[0022] Preset calibration coefficients to quantify the effect of frequency difference on PWM output duty cycle;

[0023] The adjustment amount of the PWM output duty cycle is calculated by multiplying the difference between the target ignition frequency and the real-time ignition frequency by the calibration coefficient;

[0024] Update the PWM output duty cycle and output the control signal to drive the ignition module;

[0025] Through continuous iterative adjustment, the real-time ignition frequency gradually approaches the target ignition frequency until the error range requirements are met.

[0026] Furthermore, the step of storing the calibrated PWM output duty cycle in a non-volatile storage medium is specifically as follows:

[0027] After the calibration is completed, the final PWM output duty cycle is written into the non-volatile memory;

[0028] In subsequent ignition operations, the stored calibration parameters are directly called to avoid repeated calibration process;

[0029] By regularly checking the operating status of the equipment, it is determined whether recalibration is needed, and the stored calibration parameters are updated when necessary.

[0030] Furthermore, the step of selecting the corresponding target ignition frequency and error range according to the voltage value interval is specifically as follows:

[0031] Preset multiple voltage intervals and corresponding target ignition frequency values, and set the error range for each voltage interval;

[0032] Monitor the battery voltage in real time and match it with the preset voltage range;

[0033] According to the matching results, the corresponding target ignition frequency and error range are selected for the ignition frequency calibration operation;

[0034] By dynamically adjusting the target ignition frequency and error range, it can adapt to the ignition requirements under different power supply conditions.

[0035] Furthermore, the method also includes the following steps: generating a gas equipment safe operation guarantee strategy.

[0036] Furthermore, the steps of generating a gas equipment safe operation guarantee strategy are specifically as follows:

[0037] Dynamically adjust calibration parameters by real-time monitoring of ignition frequency and power supply status;

[0038] Regularly evaluate the calibration effect based on the equipment's operating environment and aging conditions;

[0039] By optimizing the calibration process, balancing calibration accuracy and efficiency, we can improve production efficiency while ensuring safety;

[0040] Generate a safe operation assurance strategy for gas equipment to ensure stable and reliable operation of the equipment under complex and changing conditions.

[0041] Beneficial effects of the present invention: The present invention achieves precise calibration of the ignition frequency of gas equipment by dynamically adjusting the PWM output duty cycle; combined with the proportional calibration algorithm and non-volatile storage technology, the system can adapt to the ignition requirements under different power supply conditions and improve the stability and reliability of the ignition frequency through an intelligent calibration process; in addition, the system further ensures the safe operation of the gas equipment by regularly evaluating the calibration effect and optimizing the calibration process. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The invention is further described with reference to the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the invention. A person skilled in the art can obtain other drawings based on the following drawings without making any creative effort.

[0043] Figure 1 It is a system flow chart of the present invention. DETAILED DESCRIPTION

[0044] The present invention is further described with reference to the following examples.

[0045] Depend on Figure 1It can be seen that the control method for intelligently calibrating the ignition frequency described in this embodiment includes the following steps: obtaining the power supply type of the gas equipment, and determining the target ignition frequency and the allowable error range according to the power supply type; initializing the PWM output duty cycle of the ignition module, and resetting the continuous satisfaction times counter to zero; obtaining the initial ignition frequency of the ignition module, and calculating the required PWM output duty cycle according to the target ignition frequency and the initial ignition frequency; driving the ignition module to perform an ignition operation according to the currently required PWM output duty cycle, and obtaining the real-time ignition frequency during the ignition operation; determining the target ignition frequency and the The frequency difference between the real-time ignition frequencies is calculated, and the PWM output duty cycle is determined based on the frequency difference; if the frequency difference is within the allowable error range, the continuous satisfaction times counter is increased; if the frequency difference exceeds the error range, the PWM output duty cycle is adjusted based on the frequency difference and the preset calibration coefficient, and the continuous satisfaction times counter is reset; if the continuous satisfaction times counter does not reach the preset number N, the ignition module is repeatedly driven to perform the ignition operation, real-time ignition frequency acquisition, frequency difference analysis and PWM output duty cycle adjustment process; the PWM output duty cycle after calibration is stored in a non-volatile storage medium.

[0046] In actual applications, the power supply type of the gas equipment is the first key factor in calibration. The system automatically identifies the power supply mode, which is divided into two cases: battery-powered and non-battery-powered. For battery-powered mode, the system will monitor the battery voltage value in real time and match it with multiple preset voltage intervals. For example, assuming the preset voltage intervals are [3.0V-3.5V], [3.5V-4.0V], and [4.0V-4.5V], each interval corresponds to a different target ignition frequency and error range. If the current voltage is 3.8V, it is matched to the [3.5V-4.0V] interval. At this time, the target ignition frequency is set to 60Hz, and the allowable error range is ±2Hz. For non-battery-powered mode, the system uses a fixed target ignition frequency of 60Hz and an error range of ±2Hz for calibration. The accuracy of subsequent calibration operations is ensured through the power supply type identification and target ignition frequency determination process.

[0047] Next, initializing the ignition module's PWM output duty cycle is a crucial step in the calibration process. The system initializes the PWM output duty cycle to 0%, and simultaneously resets the consecutive satisfaction counter to ensure the calibration process starts from scratch. The system uses a high-precision sensor to measure the ignition module's initial ignition frequency and feeds it back to the control system. Assuming the initial ignition frequency is 58Hz, which differs by 2Hz from the target ignition frequency of 60Hz, the system calculates the required PWM output duty cycle adjustment using a proportional calibration algorithm. This algorithm can be expressed as: ΔD = K × (F_target - F_real), where ΔD is the PWM output duty cycle adjustment, K is a preset calibration factor (e.g., 0.1), F_target is the target ignition frequency, and F_real is the actual ignition frequency. Substituting these values, ΔD = 0.1 × (60 - 58) = 0.2. Therefore, the new PWM output duty cycle is updated to 0% + 0.2% = 0.2%. Subsequently, the system determines whether the frequency difference is within the allowable error range. If the condition is met, the system increases the number of consecutive times the condition is met; otherwise, the system readjusts the PWM output duty cycle.

[0048] If the real-time ignition frequency is lower than the target ignition frequency, the PWM output duty cycle is increased to raise the ignition frequency; otherwise, the PWM output duty cycle is reduced. For example, when the real-time ignition frequency is 57 Hz, the system calculates ΔD = 0.1 × (60 - 57) = 0.3, and the new PWM output duty cycle is updated to 0.2% + 0.3% = 0.5%. If the real-time ignition frequency is equal to the target ignition frequency, the current PWM output duty cycle remains unchanged. If the frequency difference exceeds the allowable error range, the system dynamically calculates the adjustment amount based on the frequency difference and the preset calibration coefficient and updates the PWM output duty cycle. For example, when the real-time ignition frequency is 55 Hz, ΔD = 0.1 × (60 - 55) = 0.5, and the new PWM output duty cycle is updated to 0.5% + 0.5% = 1%. Through continuous iterative adjustments, the real-time ignition frequency gradually approaches the target ignition frequency until it meets the error range requirements.

[0049] The core of the proportional calibration algorithm lies in quantifying the impact of the frequency difference on the PWM output duty cycle. The system presets the calibration coefficient K to 0.1. The adjustment of the PWM output duty cycle is calculated by multiplying the difference between the target ignition frequency and the real-time ignition frequency by the calibration coefficient. For example, when the real-time ignition frequency is 59Hz, ΔD = 0.1 × (60-59) = 0.1, and the new PWM output duty cycle is updated to 1% + 0.1% = 1.1%. The system updates the PWM output duty cycle and outputs a control signal to drive the ignition module. The system continuously iterates and adjusts, so that the real-time ignition frequency gradually approaches the target ignition frequency until the error range requirements are met.

[0050] After calibration is complete, the system writes the final PWM output duty cycle to non-volatile memory. For example, if the PWM output duty cycle after calibration is 1.5%, the system stores it in EEPROM. During subsequent ignition operations, the system directly calls the stored calibration parameters, avoiding repeated calibration. Furthermore, the system regularly monitors the device's operating status to determine if recalibration is necessary and updates the stored calibration parameters if necessary. For example, if device aging causes the ignition frequency to deviate from the target value, the system re-executes the calibration process and updates the stored parameters.

[0051] The system dynamically adjusts the calibration parameters by monitoring the ignition frequency and power supply status in real time. For example, when the power supply voltage drops to 3.2V, the system re-matches the target ignition frequency to 55Hz and updates the calibration parameters. The system regularly evaluates the calibration effect based on the equipment's operating environment and aging conditions. For example, after one year of operation, when the system detects that the ignition frequency deviates from the target value by more than ±3Hz, it re-executes the calibration process. The system balances calibration accuracy and efficiency by optimizing the calibration process, improving production efficiency while ensuring safety. For example, by shortening the preset value of the counter for the number of consecutive times a value is met, the calibration time is reduced. The system generates a safe operation guarantee strategy for gas equipment to ensure stable and reliable operation of the equipment under complex and changing conditions.

[0052] In summary, this invention achieves precise calibration of the ignition frequency of gas equipment by dynamically adjusting the PWM output duty cycle. Combining a proportional calibration algorithm with non-volatile storage technology, the system can adapt to ignition requirements under varying power supply conditions and improve the stability and reliability of the ignition frequency through an intelligent calibration process. Furthermore, the system further ensures the safe operation of gas equipment by regularly evaluating calibration results and optimizing the calibration process.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A control method for intelligently calibrating ignition frequency, characterized by: The following steps are involved: Obtain the power supply type of the gas equipment and determine the target ignition frequency and the allowable error range based on the power supply type; Initialize the PWM output duty cycle of the ignition module and reset the continuous satisfaction counter to zero; Obtain the initial ignition frequency of the ignition module, and calculate the required PWM output duty cycle based on the target ignition frequency and the initial ignition frequency; Drive the ignition module to perform ignition operation through the currently required PWM output duty cycle, and obtain the real-time ignition frequency during the ignition operation; Determine the frequency difference between the target ignition frequency and the real-time ignition frequency, and determine whether to adjust the PWM output duty cycle based on the frequency difference; If the frequency difference is within the allowable error range, the continuous satisfaction counter is increased; if the frequency difference exceeds the error range, the PWM output duty cycle is adjusted according to the frequency difference and the preset calibration coefficient, and the continuous satisfaction counter is reset; If the number of times the counter is satisfied continuously does not reach the preset number N, the ignition module is repeatedly driven to perform the ignition operation, real-time ignition frequency acquisition, frequency difference analysis and PWM output duty cycle adjustment process; The PWM output duty cycle after calibration is stored in a non-volatile storage medium.

2. The control method for intelligently calibrating the ignition frequency according to claim 1, characterized in that: The power supply type includes two modes: battery power supply and non-battery power supply.

3. The control method for intelligently calibrating the ignition frequency according to claim 2, characterized in that: The steps of obtaining the power supply type of the gas equipment and determining the target ignition frequency and the allowable error range according to the power supply type are specifically as follows: Detect the power supply mode of the gas equipment. If it is battery-powered, select the corresponding target ignition frequency and error range based on the voltage value range; if it is not battery-powered, use a fixed target ignition frequency and error range for calibration.

4. The control method for intelligently calibrating the ignition frequency according to claim 1, characterized in that: The steps of adjusting the PWM output duty cycle according to the frequency difference and the preset calibration coefficient are specifically as follows: If the real-time ignition frequency is lower than the target ignition frequency, the PWM output duty cycle is increased to increase the ignition frequency; if the real-time ignition frequency is higher than the target ignition frequency, the PWM output duty cycle is reduced to reduce the ignition frequency; if the real-time ignition frequency is equal to the target ignition frequency, the current PWM output duty cycle is kept unchanged; When the frequency difference exceeds the allowable error range, the adjustment amount is calculated through the proportional calibration algorithm based on the frequency difference and the preset calibration coefficient, and the PWM output duty cycle is dynamically updated.

5. The control method for intelligently calibrating the ignition frequency according to claim 4, characterized in that: The steps of calculating the adjustment amount by using the proportional calibration algorithm and dynamically updating the PWM output duty cycle are specifically as follows: Preset calibration coefficients to quantify the effect of frequency difference on PWM output duty cycle; The adjustment amount of the PWM output duty cycle is calculated by multiplying the difference between the target ignition frequency and the real-time ignition frequency by the calibration coefficient; Update the PWM output duty cycle and output the control signal to drive the ignition module; Through continuous iterative adjustment, the real-time ignition frequency gradually approaches the target ignition frequency until the error range requirements are met.

6. The control method for intelligently calibrating the ignition frequency according to claim 1, characterized in that: The step of storing the calibrated PWM output duty cycle in a non-volatile storage medium is specifically as follows: After the calibration is completed, the final PWM output duty cycle is written into the non-volatile memory; In subsequent ignition operations, the stored calibration parameters are directly called to avoid repeated calibration process; By regularly checking the operating status of the equipment, it is determined whether recalibration is needed, and the stored calibration parameters are updated when necessary.

7. The control method for intelligently calibrating the ignition frequency according to claim 3, characterized in that: The step of selecting the corresponding target ignition frequency and error range according to the voltage value interval is specifically as follows: Preset multiple voltage intervals and corresponding target ignition frequency values, and set the error range for each voltage interval; Monitor the battery voltage in real time and match it with the preset voltage range; According to the matching results, the corresponding target ignition frequency and error range are selected for the ignition frequency calibration operation; By dynamically adjusting the target ignition frequency and error range, it can adapt to the ignition requirements under different power supply conditions.

8. The control method for intelligently calibrating the ignition frequency according to claim 1, characterized in that: The following steps are also included: Generate strategies to ensure safe operation of gas equipment.

9. The control method for intelligently calibrating the ignition frequency according to claim 8, characterized in that: The steps of generating a gas equipment safe operation guarantee strategy are specifically as follows: Dynamically adjust calibration parameters by real-time monitoring of ignition frequency and power supply status; Regularly evaluate the calibration effect based on the equipment's operating environment and aging conditions; By optimizing the calibration process and balancing calibration accuracy and efficiency, we can improve production efficiency while ensuring safety; Generate a safe operation assurance strategy for gas equipment to ensure stable and reliable operation of the equipment under complex and changing conditions.

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