Ignition detection circuit, method, ignition device

Abstract

The application relates to the technical field of automatic detection, and discloses a firing detection circuit, a firing detection method and a firing device. The firing detection circuit comprises an antenna, a detection circuit and a detection chip. The input end of the detection circuit is connected with the antenna, and the output end is connected with the input end of the detection chip. The antenna is used for inducting electromagnetic signals. The detection circuit is used for converting the electromagnetic signals into low-frequency signals related to amplitude. The detection chip is used for detecting whether the frequency and amplitude of the low-frequency signals are within the frequency and amplitude range corresponding to the electromagnetic interference signals generated when the pulse igniter fires. If the frequency and amplitude of the low-frequency signals are within the frequency and amplitude range corresponding to the electromagnetic interference signals generated when the pulse igniter fires, it is determined that the pulse igniter fires. The electromagnetic interference signals generated when the pulse igniter fires are inducted by the antenna to realize the firing detection. The whole circuit has the advantages of simple structure, small space occupation, low cost, strong anti-interference ability, high detection precision and wide application.

Description

Technical Field

[0001] This invention relates to the field of automatic detection technology, specifically to ignition detection circuits, methods, and ignition devices. Background Technology

[0002] Stoves, water heaters, and automobiles use pulse igniters, which generate an electric spark through high-voltage discharge to ignite gas. Regarding the detection of this electric spark, relevant technologies primarily rely on image recognition to identify the discharge. However, image recognition for electric spark detection requires hardware such as cameras. Installing cameras inside stoves, water heaters, or car engines is impractical in terms of space and cost. Furthermore, the image clarity of cameras in these locations is easily affected by particles such as soot and dust on the lens surface, thus impacting the accuracy of electric spark detection. Summary of the Invention

[0003] In view of this, the present invention provides an ignition detection circuit, method, and ignition device to solve the problems of high space and cost and low accuracy of the image recognition pulse igniter electric spark method in related technologies.

[0004] In a first aspect, the present invention provides an ignition detection circuit for use in a pulse igniter, the ignition detection circuit comprising: an antenna, a detection circuit, and a detection chip, wherein...

[0005] The input terminal of the detection circuit is connected to the antenna, and the output terminal is connected to the input terminal of the detection chip.

[0006] The antenna is used to sense electromagnetic signals;

[0007] The detection circuit is used to convert the electromagnetic signal into a low-frequency signal that is amplitude-dependent;

[0008] The detection chip is used to detect whether the frequency and amplitude of the low-frequency signal are within the frequency and amplitude range corresponding to the electromagnetic interference signal generated when the pulse igniter ignites. If the frequency and amplitude of the low-frequency signal are within the frequency and amplitude range corresponding to the electromagnetic interference signal generated when the pulse igniter ignites, it is determined that the pulse igniter has ignited.

[0009] This invention achieves ignition detection by using an antenna to sense the strong electromagnetic interference signal generated when a pulse igniter ignites. A detection circuit converts the high-frequency electromagnetic signal sensed by the antenna into a low-frequency signal related to its amplitude, facilitating detection processing by the detection chip. By comparing the frequency and amplitude range of the electromagnetic interference signal generated when the pulse igniter ignites, stored in the detection chip, with the low-frequency signal, it is possible to detect whether the pulse igniter has ignited. The entire circuit structure is simple, occupies little space, is inexpensive, has strong anti-interference capabilities, good detection accuracy, and a wide range of applications.

[0010] In one optional implementation, the detection circuit includes: a diode, a resistor, and a capacitor, wherein,

[0011] The forward terminal of the diode is connected to the antenna, and the reverse terminal is connected to one end of the resistor, one end of the capacitor, and the input terminal of the detection chip, respectively.

[0012] The other end of the resistor is connected to the other end of the capacitor and then grounded.

[0013] This invention utilizes the unidirectional conductivity of diodes to extract low-frequency or audio signals from high-frequency or mid-frequency radio signals. The attenuation rate of the detected signal can be adjusted by the values ​​of resistors and capacitors, facilitating signal processing by the detection chip and enabling the conversion of high-frequency signals into low-frequency signals.

[0014] In one alternative implementation, the antenna is a PCB antenna.

[0015] This invention utilizes the small size and low cost of PCB antennas to further reduce the cost of the entire ignition detection circuit, reduce its space occupation, and expand the application range of the ignition detection circuit.

[0016] In one alternative implementation, the detection chip is an MCU.

[0017] This invention utilizes the advantages of MCUs, such as high processing speed, high precision, and low cost, to further reduce the cost of the entire ignition detection circuit and improve ignition detection efficiency and accuracy.

[0018] In one optional embodiment, the ignition detection circuit further includes an analog-to-digital converter circuit, wherein the input terminal of the analog-to-digital converter circuit is connected to the output terminal of the detector circuit, and the output terminal is connected to the input terminal of the detection chip.

[0019] This invention converts analog signals into digital signals by setting up an analog-to-digital conversion circuit, making it easier for the detection chip to process and detect data.

[0020] In one optional embodiment, when the pulse igniter is installed on the stove, the ignition detection circuit is located on the range hood corresponding to the stove.

[0021] This invention, by placing the ignition detection circuit on the range hood, avoids it being burned by the open flame on the stove, ensuring the safety of the ignition detection circuit and extending its service life.

[0022] In a second aspect, the present invention provides an ignition detection method, applied to a detection chip of an ignition detection circuit in the first aspect or any corresponding embodiment thereof, the method comprising:

[0023] The electromagnetic signal received by the antenna is converted into a low-frequency signal that is amplitude-dependent.

[0024] The frequency and amplitude of the low-frequency signal are detected to be within the frequency and amplitude range corresponding to the electromagnetic interference signal generated when the pulse igniter is ignited;

[0025] If the frequency and amplitude of the low-frequency signal are within the range of the frequency and amplitude of the electromagnetic interference signal generated when the pulse igniter is ignited, it is determined that the pulse igniter has ignited.

[0026] This invention converts the electromagnetic signal sensed by the antenna through the detection circuit from a high-frequency signal into a low-frequency signal related to the amplitude. This low-frequency signal is then compared with the frequency and amplitude range of the electromagnetic interference signal generated when the pulse igniter ignites. This allows for the detection of whether the pulse igniter has ignited, achieving ignition detection of the pulse igniter. The invention is low-cost, has strong anti-interference capabilities, good detection accuracy, and a wide range of applications.

[0027] In an optional implementation, the method further includes:

[0028] If the frequency of the low-frequency signal is not within the frequency range corresponding to the electromagnetic interference signal generated when the pulse igniter is ignited, or if the low-frequency signal is not within the amplitude range corresponding to the electromagnetic interference signal generated when the pulse igniter is ignited, it is determined that the pulse igniter has not ignited.

[0029] This invention can accurately identify whether the pulse igniter is igniting by comparing the frequency and amplitude of the low-frequency signal with the frequency and amplitude range of the electromagnetic interference signal generated when the pulse igniter is ignited.

[0030] In one alternative implementation, after determining that the pulse igniter has ignited, the method further includes:

[0031] Monitor the discharge time interval between two consecutive ignitions of the pulse igniter;

[0032] Determine whether the discharge time interval is greater than a preset discharge time interval threshold;

[0033] When the discharge time interval is greater than a preset discharge time interval threshold, a low battery warning is issued for the pulse igniter.

[0034] This invention monitors the discharge time interval between two consecutive ignitions of the burr igniter, enabling the monitoring of the pulse igniter's power level and providing early warnings when the power is low. This facilitates timely maintenance or power supply replacement for users, further improving the user experience.

[0035] Thirdly, the present invention provides an ignition device, which includes: a pulse igniter and an ignition detection circuit according to the first aspect or any corresponding embodiment thereof. Attached Figure Description

[0036] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the ignition detection circuit according to an embodiment of the present invention;

[0038] Figure 2 This is a schematic diagram of the structure of an ignition device according to an embodiment of the present invention;

[0039] Figure 3 This is a schematic flowchart of an ignition detection method according to an embodiment of the present invention;

[0040] Figure 4 This is a flowchart illustrating another ignition detection method according to an embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of the hardware structure of the detection chip in the ignition detection circuit of this invention. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Stoves, water heaters, and automobiles use pulse igniters, which generate an electric spark through high-voltage discharge to ignite gas. Regarding the detection of this electric spark, relevant technologies primarily rely on image recognition to identify the discharge. However, image recognition for electric spark detection requires hardware such as cameras. Installing cameras inside stoves, water heaters, or car engines is impractical in terms of space and cost. Furthermore, the image clarity of cameras in these locations is easily affected by particles such as soot and dust on the lens surface, thus impacting the accuracy of electric spark detection.

[0044] An ignition detection circuit is provided in this embodiment of the invention, such as... Figure 1 As shown, the ignition detection circuit includes: an antenna 101, a detection circuit 102, and a detection chip 103, wherein,

[0045] The input terminal of the detection circuit 102 is connected to the antenna 101, and the output terminal is connected to the input terminal of the detection chip 103;

[0046] Antenna 101 is used to sense electromagnetic signals;

[0047] Detector circuit 102 is used to convert electromagnetic signals into low-frequency signals that are amplitude-dependent;

[0048] The detection chip 103 is used to detect whether the frequency and amplitude of the low-frequency signal are within the frequency and amplitude range of the electromagnetic interference signal generated when the pulse igniter is ignited. If the frequency and amplitude of the low-frequency signal are within the frequency and amplitude range of the electromagnetic interference signal generated when the pulse igniter is ignited, it is determined that the pulse igniter has ignited.

[0049] Because the pulse igniter exhibits strong radio frequency interference during ignition, generating a strong electromagnetic interference signal, the antenna 101 is used to sense the electromagnetic signal, and then the detector circuit 102 converts the electromagnetic signal into a low-frequency signal related to the amplitude. Finally, the presence of ignition is detected by comparing the amplitude and frequency of the low-frequency signal with the electromagnetic interference signal generated during pulse ignition.

[0050] This invention achieves ignition detection by using antenna 101 to sense the strong electromagnetic interference signal generated when a pulse igniter ignites. The electromagnetic signal sensed by antenna 101 is converted from a high-frequency signal to a low-frequency signal related to amplitude by detection circuit 102, which is convenient for detection chip 103 to process. By comparing the frequency and amplitude range of the electromagnetic interference signal generated when the pulse igniter ignites with the low-frequency signal stored in detection chip 103, it is possible to detect whether the pulse igniter has ignited. The entire circuit structure is simple, occupies little space, is inexpensive, has strong anti-interference ability, good detection accuracy, and has a wide range of applications.

[0051] In some alternative implementations, such as Figure 1 As shown, the detector circuit 102 includes: a diode D, a resistor R, and a capacitor C, wherein,

[0052] The forward terminal of diode D is connected to antenna 101, and the reverse terminal is connected to one end of resistor R, one end of capacitor C, and the input terminal of detection chip 103, respectively.

[0053] The other end of resistor R is connected to the other end of capacitor C and then grounded.

[0054] This invention utilizes the unidirectional conductivity of diodes to extract low-frequency or audio signals from high-frequency or mid-frequency radio signals. The attenuation rate of the detected signal can be adjusted by the values ​​of resistors and capacitors, facilitating signal processing by the detection chip and enabling the conversion of high-frequency signals into low-frequency signals.

[0055] Specifically, the parameters of resistor R and capacitor C in the aforementioned detection circuit 102 can be selected according to the electromagnetic environment of the pulse igniter. The time constant τ is determined by the product of the resistance value of resistor R and the capacitance value of capacitor C. τ determines the attenuation rate of the detected signal and is generally selected to be 1 / 3 to 1 / 10 of the time interval between the ignition and discharge pulses of the pulse igniter. Furthermore, the processing time of the aforementioned detection chip 103 should not exceed 1 / 10 of τ.

[0056] In some alternative implementations, the antenna 101 described above is a PCB antenna.

[0057] This invention utilizes the small size and low cost of PCB antennas to further reduce the cost of the entire ignition detection circuit, reduce its space occupation, and expand the application range of the ignition detection circuit. Furthermore, in practical applications, the antenna 101 described above can also be other types of antennas, as long as they can achieve electromagnetic signal sensing functionality; this invention is not limited to these.

[0058] In some alternative implementations, the detection chip 103 is an MCU. However, in practical applications, the detection chip 103 can also be other types of control chips, such as a CPU, as long as it can perform data processing functions; this invention is not limited thereto.

[0059] This invention utilizes the advantages of MCUs, such as high processing speed, high precision, and low cost, to further reduce the cost of the entire ignition detection circuit and improve ignition detection efficiency and accuracy.

[0060] In some optional embodiments, the ignition detection circuit further includes an analog-to-digital converter circuit, the input of which is connected to the output of the detector circuit 102, and the output of which is connected to the input of the detection chip 103.

[0061] Specifically, the aforementioned analog-to-digital conversion circuit can be implemented using existing AD conversion chips or existing analog-to-digital conversion circuits. The specific circuit structure can be found in relevant existing technologies and will not be elaborated upon here. Furthermore, in practical applications, AD conversion functionality can be integrated into the aforementioned MCU to convert low-frequency amplitude signals into digital signals for ignition logic processing. This invention is not limited to this.

[0062] This invention converts analog signals into digital signals by setting up an analog-to-digital conversion circuit, making it easier for the detection chip to process and detect data.

[0063] In some alternative implementations, when the pulse igniter is installed on the cooktop, the ignition detection circuit is located on the corresponding range hood. For example, the aforementioned PCB antenna can be mounted on the range hood display panel to avoid interference from the flame.

[0064] This invention, by placing the ignition detection circuit on the range hood, avoids it being burned by the open flame on the stove, ensuring the safety of the ignition detection circuit and extending its service life.

[0065] The working principle and process of the ignition detection circuit provided by this invention will be described in detail below with specific application examples.

[0066] For example, the ignition detection current mainly includes: a PCB antenna, a detector circuit 102, and a CPU, with the AD conversion function based inside the CPU.

[0067] The PCB antenna (shape not limited) is used to sense and receive electromagnetic interference signals at the moment of ignition; the detector circuit 102 is used to convert the high-frequency signal received by the antenna into a low-frequency signal related to the amplitude; the CPU is used to digitize the low-frequency amplitude signal and determine the ignition process.

[0068] Depending on the electromagnetic environment in which the ignition detection circuit operates, the parameters of the detector circuit 102 are selected. The time constant τ, determined by the values ​​of resistor R and capacitor C, determines the attenuation rate of the detected signal. Generally, it can be selected as 1 / 3 to 1 / 10 of the time interval between ignition discharge pulses. The CPU's internal AD conversion and program judgment processing time should not exceed 1 / 10 of τ.

[0069] The experimental test showed that the interference signal parameters coupled to the antenna by the pulse igniter were: amplitude approximately 0.5-5V, waveform similar to a damped oscillating wave, rise time approximately 4-10ns, and period approximately 0.1-5us. The RC time constant τ can be selected from 100us to 1ms, the capacitor C can be selected from 1-10nF, and the resistor can be selected from 10K to 100KΩ.

[0070] The CPU determines whether pulse discharge ignition has occurred based on the amplitude and pulse interval characteristics of the antenna inductive coupling signal. For example, the ignition signal has a repetition frequency of 8-20 times per second, and each discharge waveform is similar. Based on the frequency of 8-20 and the amplitude of 0.5-5V, the CPU compares the frequency and amplitude of the antenna inductive signal with the frequency and amplitude range corresponding to the ignition signal. If the signal falls within the range, ignition is considered to have occurred, thus realizing the ignition detection function of the pulse igniter.

[0071] An ignition device is also provided in this embodiment of the invention, such as... Figure 2 As shown, the ignition device includes a pulse igniter 201 and an ignition detection circuit 202. For a detailed description of the ignition detection circuit 202, please refer to the description of the ignition detection circuit above; it will not be repeated here.

[0072] Specifically, the ignition device can be a gas stove, water heater, wall-hung boiler, fuel vehicle, or other device that uses a pulse igniter 201 for ignition. This is just one example, and the present invention is not limited thereto.

[0073] The ignition device provided by this invention achieves ignition detection by inducing strong electromagnetic interference signals generated when a pulse igniter ignites using an antenna. The electromagnetic signal sensed by the antenna is converted from a high-frequency signal to a low-frequency signal related to its amplitude through a detection circuit, which facilitates detection and processing by the detection chip. By comparing the frequency and amplitude range of the electromagnetic interference signal generated when the pulse igniter ignites with the low-frequency signal stored in the detection chip, it is possible to detect whether the pulse igniter has ignited. The entire circuit structure is simple, occupies little space, is inexpensive, has strong anti-interference ability, and has good detection accuracy.

[0074] According to an embodiment of the present invention, an embodiment of an ignition detection method is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0075] This embodiment provides an ignition detection method, which can be used for, for example Figure 1 The detection chip 103 in the ignition detection circuit shown can be, for example, an MCU, CPU, or microcontroller. Figure 3 This is a flowchart of an ignition detection method according to an embodiment of the present invention, such as... Figure 3 As shown, the process includes the following steps:

[0076] Step S301: The electromagnetic interference signal received by the antenna is converted into a low-frequency signal related to the amplitude.

[0077] Specifically, the low-frequency signal is transmitted through, for example... Figure 1 The ignition detection circuit shown in the diagram receives the signal from the antenna, which is then converted by the detection circuit. For details, please refer to [reference needed]. Figure 1 The relevant description of the ignition detection circuit shown will not be repeated here.

[0078] Step S302: Detect whether the frequency and amplitude of the low-frequency signal are within the frequency and amplitude range corresponding to the electromagnetic interference signal generated when the pulse igniter is ignited.

[0079] For example, by experimental testing, the interference signal parameters coupled to the wire by the pulse igniter are: amplitude of approximately 0.5-5V, with a repetition frequency of 8-20 times per second, waveform similar to a damped oscillating wave, rise time of approximately 4-10ns, and period of approximately 0.1-5us. By determining whether the frequency of the low-frequency signal is within the range of 8-20 times per second and whether the amplitude of the low-frequency signal is within the range of 0.5-5V, if both conform to the amplitude and frequency range corresponding to the ignition of the pulse igniter, then it is determined that the pulse igniter has ignited.

[0080] Step S303: If the frequency and amplitude of the low-frequency signal are within the frequency and amplitude range of the electromagnetic interference signal generated when the pulse igniter is ignited, it is determined that the pulse igniter has ignited.

[0081] This invention converts the electromagnetic interference signal sensed by the antenna through the detection circuit into a low-frequency signal related to the amplitude. It compares the frequency and amplitude range of the electromagnetic interference signal generated when the pulse igniter is ignited with the low-frequency signal, thereby detecting whether the pulse igniter has ignited. This invention achieves ignition detection of the pulse igniter, is low in cost, has strong anti-interference ability, good detection accuracy, and a wide range of applications.

[0082] This embodiment provides an ignition detection method, which can be used for, for example Figure 1 The detection chip 103 in the ignition detection circuit shown can be, for example, an MCU, CPU, or microcontroller. Figure 4 This is a flowchart of an ignition detection method according to an embodiment of the present invention, such as... Figure 4 As shown, the process includes the following steps:

[0083] Step S401: The electromagnetic interference signal received by the antenna is converted into a low-frequency signal related to its amplitude. See details below. Figure 3 The relevant descriptions of step S301 shown will not be repeated here.

[0084] Step S402: Detect whether the frequency and amplitude of the low-frequency signal are within the frequency and amplitude range corresponding to the electromagnetic interference signal generated during pulse ignition. See details below. Figure 3 The relevant description of step S302 shown will not be repeated here.

[0085] Step S403: If the frequency and amplitude of the low-frequency signal are within the frequency and amplitude range corresponding to the electromagnetic interference signal generated during pulse ignition, then it is determined that the pulse igniter has ignited. See details below. Figure 3 The relevant description of step S303 shown will not be repeated here.

[0086] Step S404: If the frequency of the low-frequency signal is not within the frequency range corresponding to the electromagnetic interference signal generated when the pulse igniter is igniting, or if the low-frequency signal is not within the amplitude range corresponding to the electromagnetic interference signal generated when the pulse igniter is igniting, it is determined that the pulse igniter has not ignited.

[0087] Specifically, if the frequency of the low-frequency signal is not in the range of 8-20 times per second, or the amplitude of the low-frequency signal is not in the range of 0.5-5V, then it is determined that the pulse igniter has not ignited. In this case, the detected low-frequency signal is not generated by the pulse igniter, but may be other electromagnetic interference signals present in the environment.

[0088] This invention can accurately identify whether the pulse igniter is igniting by comparing the frequency and amplitude of the low-frequency signal with the frequency and amplitude range of the electromagnetic interference signal generated when the pulse igniter is ignited.

[0089] Step S405: After determining that the pulse igniter has ignited, monitor the discharge time interval between two consecutive ignitions of the pulse igniter.

[0090] Step S406: Determine whether the discharge time interval is greater than the preset discharge time interval threshold.

[0091] The preset discharge time interval threshold is the discharge time interval corresponding to when the pulse igniter reaches a set low power value. For example, the preset discharge time interval threshold is the discharge time interval corresponding to when the battery of the pulse igniter has 10% power remaining. The specific setting can be flexibly adjusted according to the actual power indication requirements of the pulse igniter. This invention is not limited thereto.

[0092] Specifically, since the ignition signal of a pulse igniter typically lasts for several seconds, the discharge interval is commonly 70-200ms, and the discharge interval increases as the battery charge decreases. For example, the CPU tests the discharge interval T2 using a battery with 10% charge, and stores the data in the CPU's internal non-volatile memory. During use, the presence or absence of battery charge is determined by comparing each detected discharge time interval with T2.

[0093] Step S407: When the discharge time interval is greater than the preset discharge time interval threshold, a low battery warning is issued for the pulse igniter.

[0094] For example, the ratio of the discharge time interval to the above T2 can be calculated. If the ratio is greater than 1, the battery power of the pulse igniter is considered to be insufficient. If the ratio is not greater than 1, the battery power of the pulse igniter is considered to be sufficient.

[0095] This invention monitors the discharge time interval between two consecutive ignitions of the burr igniter, enabling the monitoring of the pulse igniter's power level and providing early warnings when the power is low. This facilitates timely maintenance or power supply replacement for users, further improving the user experience.

[0096] Furthermore, in practical applications, the consistency of the discharge process can be judged by detecting the amplitude intensity of the aforementioned low-frequency signals and statistically analyzing their expected value and variance. The stability of the pulse igniter's ignition can then be determined based on the expected value and variance.

[0097] Please see Figure 5 , Figure 5 This is a schematic diagram of the structure of the detection chip 103 in the ignition detection circuit provided in the optional embodiment of the present invention, as shown below. Figure 5 As shown, the detection chip 103 includes one or more processors 10, a memory 20, and interfaces for connecting the components, including high-speed interfaces and low-speed interfaces. The components communicate with each other using different buses and can be mounted on a common motherboard or otherwise installed as needed. The processors can process instructions executed within the computer device, including instructions stored in or on memory to display graphical information of a GUI on an external input / output device (such as a display device coupled to the interface). In some alternative implementations, multiple processors and / or multiple buses can be used with multiple memories and multiple memory modules, if desired. Similarly, multiple computer devices can be connected, each providing some of the necessary operations (e.g., as a server array, a group of blade servers, or a multiprocessor system). Figure 5 Take a processor 10 as an example.

[0098] Processor 10 may be a central processing unit, a network processor, or a combination thereof. Processor 10 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The programmable logic device may be a complex programmable logic device (CAMP), a field-programmable gate array (FPGA), a general-purpose array logic (GDA), or any combination thereof.

[0099] The memory 20 stores instructions executable by at least one processor 10 to cause at least one processor 10 to perform the method shown in the above embodiments.

[0100] The memory 20 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the computer device. Furthermore, the memory 20 may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some alternative embodiments, the memory 20 may optionally include memory remotely located relative to the processor 10, and these remote memories may be connected to the computer device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0101] The memory 20 may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as flash memory, hard disk or solid-state drive; the memory 20 may also include a combination of the above types of memory.

[0102] The detection chip 103 also includes a communication interface 30 for the controller to communicate with other devices or communication networks.

[0103] This invention also provides a computer-readable storage medium. The methods described above according to embodiments of the invention can be implemented in hardware or firmware, or implemented as computer code that can be recorded on a storage medium, or implemented as computer code downloaded via a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and then stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that computers, processors, microprocessor controllers, or programmable hardware include storage components capable of storing or receiving software or computer code, which, when accessed and executed by the computer, processor, or hardware, implements the methods shown in the above embodiments.

[0104] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. An ignition detection circuit, applied to a pulse igniter, characterized in that, The ignition detection circuit includes: an antenna, a detector circuit, and a detection chip, wherein, The input terminal of the detection circuit is connected to the antenna, and the output terminal is connected to the input terminal of the detection chip. The antenna is used to sense electromagnetic signals; The detection circuit is used to convert the electromagnetic signal into a low-frequency signal that is amplitude-dependent; The detection chip is used to detect whether the frequency and amplitude of the low-frequency signal are within the frequency and amplitude range corresponding to the electromagnetic interference signal generated when the pulse igniter ignites. If the frequency and amplitude of the low-frequency signal are within the frequency and amplitude range corresponding to the electromagnetic interference signal generated when the pulse igniter ignites, it is determined that the pulse igniter has ignited. The frequency range corresponding to the electromagnetic interference signal generated when the pulse igniter ignites is 8-20 times per second, and the amplitude range is 0.5-5V. The detection chip is also used to monitor the discharge time interval between two consecutive ignitions of the pulse igniter after determining that the pulse igniter has ignited, determine whether the discharge time interval is greater than a preset discharge time interval threshold, and issue a low battery warning to the pulse igniter when the discharge time interval is greater than the preset discharge time interval threshold.

2. The ignition detection circuit according to claim 1, characterized in that, The detection circuit includes: a diode, a resistor, and a capacitor, wherein, The forward terminal of the diode is connected to the antenna, and the reverse terminal is connected to one end of the resistor, one end of the capacitor, and the input terminal of the detection chip, respectively. The other end of the resistor is connected to the other end of the capacitor and then grounded.

3. The ignition detection circuit according to claim 1, characterized in that, The antenna is a PCB antenna.

4. The ignition detection circuit according to claim 1, characterized in that, The detection chip is an MCU.

5. The ignition detection circuit according to claim 1, characterized in that, Also includes: An analog-to-digital converter circuit is provided, wherein the input terminal of the analog-to-digital converter circuit is connected to the output terminal of the detector circuit, and the output terminal is connected to the input terminal of the detection chip.

6. The ignition detection circuit according to any one of claims 1-5, characterized in that, When the pulse igniter is installed on the stove, the ignition detection circuit is set on the range hood corresponding to the stove.

7. An ignition detection method, applied to a detection chip in an ignition detection circuit as described in any one of claims 1-6, characterized in that, The method includes: The electromagnetic signal received by the antenna is converted into a low-frequency signal that is amplitude-dependent. The frequency and amplitude of the low-frequency signal are detected to be within the frequency and amplitude range corresponding to the electromagnetic interference signal generated when the pulse igniter is ignited; If the frequency and amplitude of the low-frequency signal are within the range of the frequency and amplitude of the electromagnetic interference signal generated when the pulse igniter is ignited, it is determined that the pulse igniter has ignited. The frequency range of the electromagnetic interference signal generated when the pulse igniter is ignited is 8-20 times per second, and the amplitude range is 0.5-5V. After determining that the pulse igniter has ignited, the method further includes: Monitor the discharge time interval between two consecutive ignitions of the pulse igniter; Determine whether the discharge time interval is greater than a preset discharge time interval threshold; When the discharge time interval is greater than a preset discharge time interval threshold, a low battery warning is issued for the pulse igniter.

8. The method according to claim 7, characterized in that, The method further includes: If the frequency of the low-frequency signal is not within the frequency range corresponding to the electromagnetic interference signal generated when the pulse igniter is ignited, or if the low-frequency signal is not within the amplitude range corresponding to the electromagnetic interference signal generated when the pulse igniter is ignited, it is determined that the pulse igniter has not ignited.

9. An ignition device, characterized in that, include: A pulse igniter and an ignition detection circuit as described in any one of claims 1-6.

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