Laser ignition device and control method thereof

By obtaining the flame intensity signal and environmental parameters to calculate the flame stability threshold and controlling the laser output of the laser emission host, the problem of the laser ignition device being affected by environmental factors in the field environment is solved, and flame stability and energy consumption reduction are achieved.

CN117450539BActive Publication Date: 2025-10-10NANJING SHUNTAI TECH
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Patent Information

Application Number
CN202311554768.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-20
Publication Date
2025-10-10
Estimated Expiration
2043-11-20

AI Technical Summary

Technical Problem

Laser ignition devices are easily affected by surrounding environmental factors in the wild environment, which makes ignition more difficult or even impossible.

Method used

By acquiring the flame intensity signal and environmental parameters of the target object, the flame stability threshold is calculated, and the laser output of the laser emission host is controlled according to the flame intensity value, including maintaining laser emission when the flame intensity is lower than the threshold and stopping laser emission when it is higher than the threshold, thereby reducing the impact of environmental factors.

Benefits of technology

The flame intensity of the target object is kept stable, the energy consumption of the laser emission host is reduced, and the reliability and efficiency of the laser ignition device in the field environment are improved.

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Patent Text Reader

Abstract

The application discloses a laser ignition device and a control method thereof. The laser ignition control method is applied to the laser ignition device. The laser ignition device has a laser emission host. The laser emission host is used for emitting laser to ignite a target object. The laser ignition control method comprises the following steps: acquiring a flame intensity signal of the target object and a first environmental parameter; calculating a flame intensity value according to the flame intensity signal and determining a corresponding flame stability threshold value according to the first environmental parameter; when the flame intensity value is lower than the flame stability threshold value, controlling the laser emission host to continue emitting laser to the target object; and when the flame intensity value is greater than or equal to the flame stability threshold value, controlling the laser emission host to stop emitting laser. The technical scheme of the application aims at reducing the influence of environmental factors on laser ignition.
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Description

Technical Field

[0001] The present invention relates to the field of laser ignition, and in particular to a laser ignition device and a control method thereof. Background Art

[0002] Laser ignition devices focus a laser beam on a single point, generating a high temperature that acts as a kindling for a target object, such as a combustible fuel. Laser ignition devices have a long range, enabling remote, unmanned ignition and continuous operation for extended periods, significantly improving operational efficiency and safety.

[0003] However, laser ignition devices are usually set up in outdoor environments. In the absence of obstructions in the outdoor environment, they are easily affected by surrounding environmental factors, which makes it more difficult for the laser ignition device to ignite the target object, or even makes it impossible to ignite the target object. Summary of the Invention

[0004] The main purpose of the present invention is to provide a laser ignition device and a control method thereof, aiming to reduce the influence of environmental factors on laser ignition.

[0005] To achieve the above objectives, the present invention proposes a laser ignition control method, which is applied to a laser ignition device. The laser ignition device includes a laser emission host, which is used to emit laser light to ignite a target object. The laser ignition control method includes the following steps:

[0006] Acquiring a flame intensity signal and a first environmental parameter of a target object;

[0007] Calculating a flame intensity value according to the flame intensity signal, and determining a corresponding flame stability threshold according to the first environmental parameter;

[0008] When the flame intensity value is lower than the flame stability threshold, the laser emission host is controlled to continue emitting laser at the target;

[0009] When the flame intensity value is greater than or equal to the flame stabilization threshold, the laser emission host is controlled to stop emitting laser.

[0010] Optionally, the first environmental parameter includes ambient humidity and ambient wind speed.

[0011] Optionally, determining the corresponding flame stabilization threshold according to the first environmental parameter specifically includes the following steps:

[0012] The humidity impact value is obtained according to the ambient humidity and the preset humidity impact weight, and the wind speed impact value is obtained according to the ambient wind speed and the preset wind speed impact weight;

[0013] A preset flame stabilization threshold value table is searched according to the humidity impact value and the wind speed impact value to map and obtain a flame stabilization threshold value.

[0014] Optionally, the laser ignition control method further comprises the following steps:

[0015] When the humidity impact value is greater than a preset humidity threshold, or the wind speed impact value is greater than a preset wind speed threshold, the laser emission host is controlled to stop emitting laser.

[0016] Optionally, the laser ignition control method further comprises the following steps:

[0017] Acquiring a second environmental parameter, and calculating a second environmental impact value based on the second environmental parameter;

[0018] When the second environmental impact value is less than a first preset reference value, controlling the laser emission host to reduce the intensity of the laser emission;

[0019] When the second environmental impact value is greater than a second preset reference value, controlling the laser emission host to increase the intensity of the laser emission;

[0020] The first preset reference value is smaller than the second preset reference value.

[0021] Optionally, the second environmental parameters include ambient temperature, ambient humidity, ambient wind speed, air quality, and the distance between the laser emission host and the target object.

[0022] Optionally, calculating the second environmental impact value according to the second environmental parameter specifically includes the following steps:

[0023] A temperature influence value is obtained according to the ambient temperature and a preset temperature influence weight, a humidity influence value is obtained according to the ambient humidity and a preset humidity influence weight, a wind speed influence value is obtained according to the ambient wind speed and a preset wind speed influence weight, an air quality influence value is obtained according to the air quality and a preset air quality influence weight, and a distance influence value is obtained according to the distance between the laser emission host and the target object and a preset distance influence weight;

[0024] A preset second environment impact value table is queried according to the temperature impact value, the humidity impact value, the wind speed impact value, the air quality impact value, and the distance impact value to map and obtain a second environment impact value.

[0025] Optionally, the laser ignition control method further comprises the following steps:

[0026] Establish communication with external devices or cloud servers and obtain weather information;

[0027] According to the weather information, the laser emission host is controlled to start emitting laser at the target after a preset time, or according to the weather information, the laser emission host is controlled to stop emitting laser after a preset time.

[0028] The present invention also provides a laser ignition device, comprising:

[0029] Laser emission host;

[0030] A flame sensor, the flame sensor is used to detect the flame intensity of the target object and output a flame intensity signal;

[0031] An environment detection component, which is used to detect the environment and output environmental parameters;

[0032] A controller, wherein the input end of the controller is connected to the output end of the flame sensor, the input end of the controller is also connected to the output end of the environment detection component, the output end of the controller is connected to the input end of the laser emission host, and the controller is used to obtain a flame stability threshold according to the environmental parameters;

[0033] When the flame intensity value is lower than a preset flame intensity threshold, the controller controls the laser emission host to emit laser towards the target object;

[0034] The controller controls the laser emission host to stop emitting laser when the flame intensity value is greater than or equal to the flame stabilization threshold;

[0035] A memory is electrically connected to the controller, wherein the memory stores a computer program, and when the computer program is executed by the controller, the steps of the laser ignition control method described above are implemented.

[0036] Optionally, the environment detection component includes:

[0037] A humidity detection sensor is used to detect the ambient humidity and output the ambient humidity parameter to the controller;

[0038] The wind speed detection sensor is used to detect the ambient wind speed and output the ambient wind speed parameters to the controller.

[0039] The technical solution of the present invention first obtains the flame intensity signal of the target object and a first environmental parameter; then calculates the flame intensity value based on the flame intensity signal, and determines the corresponding flame stability threshold based on the first environmental parameter. This allows the laser transmitter to continue emitting laser light at the target object when the flame intensity value falls below the flame stability threshold; or to stop emitting laser light when the flame intensity value is greater than or equal to the flame stability threshold. This ensures that the flame intensity of the target object remains stable, unaffected by environmental factors, and reduces the energy consumption of the laser transmitter. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0041] Figure 1 This is a flow chart of the method steps of an embodiment of the laser ignition control method of the present invention;

[0042] Figure 2 A flow chart of the method steps of another embodiment of the laser ignition control method of the present invention;

[0043] Figure 3 A flow chart of the method steps of another embodiment of the laser ignition control method of the present invention;

[0044] Figure 4 This is a schematic diagram of the functional modules of an embodiment of the laser ignition device of the present invention.

[0045] Description of Figure Numbers:

[0046] Reference Name Reference Name 10 Laser emission master 30 Ambient detection assembly 20 Flame sensor 40 Controller

[0047] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0049] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0050] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0051] The present invention provides a laser ignition control method, which is applied to a laser ignition device. The laser ignition device includes a laser emission host 10, and the laser emission host 10 is used to emit laser to ignite a target object.

[0052] Reference Figure 1 In one embodiment of the present invention, the laser ignition control method includes the following steps:

[0053] Acquiring a flame intensity signal and a first environmental parameter of a target object;

[0054] Calculating a flame intensity value according to the flame intensity signal, and determining a corresponding flame stability threshold according to the first environmental parameter;

[0055] When the flame intensity value is lower than the flame stability threshold, the laser emission host 10 is controlled to continue emitting laser light toward the target object;

[0056] When the flame intensity value is greater than or equal to the flame stabilization threshold, the laser emission host 10 is controlled to stop emitting laser.

[0057] In this embodiment, step S100 may obtain a flame intensity signal of the target object and a first environmental parameter. The flame intensity signal may be a voltage signal, with different voltage values ​​representing different flame intensities, such as higher voltage values ​​indicating higher flame intensity. The first environmental parameter may be a factor that affects the flame size when the laser ignition device emits laser light to ignite the target object, such as ambient wind speed and humidity.

[0058] Step S200 calculates the flame intensity value from the flame intensity signal. For example, if the flame intensity signal is a voltage signal and the acquired voltage value is 0 to 5V, a voltage signal of 0V to 1V can be set to correspond to a flame intensity value of 1, a voltage signal of 1V to 2V to correspond to a flame intensity value of 2, and so on, resulting in five levels of flame intensity. This converts the analog signal into a digital signal for more convenient comparison and judgment. The specific correspondence between the flame intensity signal and the flame intensity value can be set based on actual conditions and user needs. For example, the correspondence can be adjusted based on characteristics such as the size and flammability of the target object.

[0059] It is understood that high wind speeds and high humidity in the surrounding environment will affect the flame size, making it more difficult to ignite the target. Therefore, the laser transmitter host 10 must remain operational and continuously emit laser light until the flame reaches an intensity that is not extinguished by wind speed and humidity. This intensity can be determined based on a first environmental parameter, such as by converting an electrical signal representing the ambient wind speed and humidity into a digital signal, namely, a first environmental reference value. The calculation of the first environmental parameter and the first environmental reference value can refer to the calculation method for the flame intensity signal and flame intensity value described above. For example, the first environmental reference value ranges from 1 to 5, with 1 representing low wind speed and low humidity. In these cases, the flame intensity required to maintain stability is also low, i.e., the flame stability threshold is low; 5 represents high wind speed and high humidity. In these cases, the flame intensity required to maintain stability is also high, i.e., the flame stability threshold is high. The specific correspondence between the first environmental reference value and the flame stability threshold can be set based on actual conditions and user needs. The flame intensity value and the first environmental reference value are not limited to 1 to 5.

[0060] When step S300 determines that the flame intensity value is lower than the preset flame intensity threshold, it means that the flame intensity in the current state is insufficient. If the laser emission host 10 stops emitting laser, the flame of the target object may be affected by the environment and become weaker or even extinguished. Therefore, at this time, the laser emission host 10 can be controlled to keep emitting laser to the target object to increase the flame intensity of the target object.

[0061] When step S400 determines that the flame intensity value is greater than or equal to the preset flame intensity threshold, it indicates that the flame intensity of the current state is sufficient and the flame of the target object will not be weakened by the current environment; therefore, the laser emission host 10 can be controlled to stop emitting laser light to the target object, thereby saving energy consumption of the laser emission host 10.

[0062] The technical solution of the present invention first obtains the target object's flame intensity signal and a first environmental parameter; then calculates a flame intensity value based on the flame intensity signal, and determines a corresponding flame stability threshold based on the first environmental parameter; When the flame intensity value falls below the flame stability threshold, the laser transmitter 10 is controlled to continue emitting laser light at the target object; or when the flame intensity value is greater than or equal to the flame stability threshold, the laser transmitter 10 is controlled to stop emitting laser light. This ensures that the target object's flame intensity remains stable, unaffected by environmental factors, and reduces energy consumption of the laser transmitter 10.

[0063] In one embodiment, the first environmental parameter includes environmental humidity and environmental wind speed.

[0064] In this embodiment, the first environmental parameter may include ambient humidity and ambient wind speed. During or after laser ignition, these factors may affect flame intensity and stability. Therefore, it is necessary to collect these first environmental parameters to calculate a first environmental reference value and thereby obtain a corresponding flame stability threshold. The environmental parameters may also include other environmental factors that may affect flame intensity and stability. Users may add these other environmental factors to the first environmental parameters based on actual circumstances.

[0065] In one embodiment, determining the corresponding flame stabilization threshold according to the first environmental parameter specifically includes the following steps:

[0066] S210: Obtain a humidity impact value based on the ambient humidity and a preset humidity impact weight, and obtain a wind speed impact value based on the ambient wind speed and a preset wind speed impact weight;

[0067] S220 : Query a preset flame stability threshold table according to the humidity impact value and the wind speed impact value to map and obtain a flame stability threshold.

[0068] In this embodiment, the first environmental parameter includes ambient humidity and ambient wind speed, and the current ambient humidity and ambient wind speed have a certain impact on flame intensity. Therefore, a wind speed influence weight and a humidity influence weight can be preset. The ambient humidity is multiplied by the preset humidity influence weight to obtain a humidity influence value, and the ambient wind speed is multiplied by the preset wind speed influence weight to obtain a humidity influence value. For example, if the electrical signal representing the ambient humidity is converted to a digital signal and is 1, and the electrical signal representing the ambient wind speed is converted to a digital signal and is 1, and the preset humidity influence weight is 0.5 and the preset wind speed influence weight is 0.5, then the humidity influence value and the wind speed influence value can be mapped to 0.5. It is understood that a flame stability threshold table can be preset corresponding to the humidity influence value and the wind speed influence value. For example, a humidity influence value of 0.5 and a wind speed influence value of 0.5 correspond to a flame stability threshold of 1. The higher the humidity impact value and the wind speed impact value, the greater the impact of environmental factors on flame intensity. In this way, the flame stability threshold in the corresponding mapping table is also higher. The specific mapping between the humidity impact value and the wind speed impact value and the flame stability threshold can be set according to actual conditions and user needs. The specific humidity impact weight and wind speed impact weight can also be adjusted and set according to actual conditions and user needs, and there is no restriction here.

[0069] In one embodiment, the laser ignition control method further comprises the following steps:

[0070] When the humidity impact value is greater than a preset humidity threshold, or the wind speed impact value is greater than a preset wind speed threshold, the laser emission host 10 is controlled to stop emitting laser.

[0071] In this embodiment, the impact of environmental factors on flame intensity requires comprehensive consideration and calculation of ambient humidity and wind speed. Referring to the calculation method for the first environmental impact value in the above embodiment, if the current ambient wind speed is slow and the humidity is high, or if the ambient wind speed is fast and the humidity is low, the first environmental impact value will be lower. However, if the ambient wind speed is fast or the humidity is high, the flame intensity will be significantly affected. Therefore, in this embodiment, humidity and wind speed thresholds can be set. Specifically, when the humidity impact value exceeds the humidity threshold, it indicates that the current ambient humidity is high and ignition is difficult. In this case, the laser transmitter 10 can be controlled to stop emitting laser light to avoid unnecessary energy loss. Similarly, when the wind speed impact value exceeds the wind speed threshold, it indicates that the current ambient wind speed is fast and ignition is difficult. In this case, the laser transmitter 10 can also be controlled to stop emitting laser light. The specific humidity and wind speed thresholds can be set based on actual conditions and user needs.

[0072] In one embodiment, the laser ignition control method further comprises the following steps:

[0073] S500: Acquire a second environmental parameter, and calculate a second environmental impact value based on the second environmental parameter;

[0074] S600, when the second environmental impact value is less than a first preset reference value, controlling the laser emission host 10 to reduce the intensity of laser emission;

[0075] S700, when the second environmental impact value is greater than a second preset reference value, controlling the laser emission host 10 to increase the intensity of the laser emission;

[0076] The first preset reference value is smaller than the second preset reference value.

[0077] In this embodiment, the intensity of the laser emitted by the laser transmitter 10 affects the intensity of the flame ignited by the target. Environmental factors also affect the intensity of the flame ignited by the target. Under different environmental conditions, the laser intensity required to maintain a consistent flame intensity varies. For example, higher ambient humidity results in higher laser intensity required to ignite the target. Therefore, a second environmental parameter can be obtained and a second environmental impact value calculated based on the second environmental parameter. The second environmental impact value represents the degree of influence of the current environmental factor on the intensity of the flame ignited by the target. For example, a larger second environmental impact value indicates a higher influence, while a smaller second environmental impact value indicates a lower influence. When the second environmental impact value is less than the first preset reference value, it indicates that the environmental factor has a relatively small influence on the intensity of the flame ignited by the target. In this case, the laser transmitter 10 can be controlled to reduce the laser emission intensity. When the second environmental impact value is greater than the second preset reference value, it indicates that the environmental factor has a relatively large influence on the intensity of the flame ignited by the target. In this case, the laser transmitter 10 can be controlled to increase the laser emission intensity. The intensity of the laser emission can be reduced or increased by a preset intensity each time, and then a comparison and judgment between the second environmental impact value and the first preset reference value or a comparison and judgment between the second environmental impact value and the second preset reference value is performed until the second environmental impact value is less than the first preset reference value or the second environmental impact value is greater than the second preset reference value. The first preset reference value needs to be less than the second preset reference value, and the specific first preset reference value and the second preset reference value can be set according to actual conditions and user needs. This embodiment can control the intensity of the laser emission of the laser emission host 10 according to different environmental factors, thereby avoiding the laser emission host 10 emitting lasers at a higher power when the environmental factors are less affected, causing unnecessary energy loss.

[0078] In one embodiment, the second environmental parameter includes ambient temperature, ambient humidity, ambient wind speed, air quality, and the distance between the laser transmitting host 10 and the target object.

[0079] In this embodiment, the second environmental parameter may include ambient temperature, ambient humidity, ambient wind speed, air quality, and the distance between the laser transmitter host 10 and the target object. When the ambient temperature is higher, the target object is more easily ignited, and the laser intensity required to ignite the target object is lower. Similarly, when the ambient humidity is lower, the ambient wind speed is slower, the air quality is higher, that is, when there are fewer impurities and particulate matter in the air, and the distance between the laser transmitter host 10 and the target object is closer, the laser intensity required to ignite the target object is lower. Conversely, the laser intensity required to ignite the target object is higher. Therefore, the second environmental parameter can be calculated by comprehensively considering the ambient temperature, ambient humidity, ambient wind speed, air quality, and the distance between the laser transmitter host 10 and the target object. The second environmental parameter includes but is not limited to the above-mentioned environmental factors, and users can add other environmental factors according to actual conditions.

[0080] In one embodiment, calculating the second environmental impact value according to the second environmental parameter specifically includes the following steps:

[0081] A temperature influence value is obtained according to the ambient temperature and a preset temperature influence weight, a humidity influence value is obtained according to the ambient humidity and a preset humidity influence weight, a wind speed influence value is obtained according to the ambient wind speed and a preset wind speed influence weight, an air quality influence value is obtained according to the air quality and a preset air quality influence weight, and a distance influence value is obtained according to the distance between the laser transmitting host 10 and the target object and a preset distance influence weight;

[0082] A preset second environment impact value table is queried according to the temperature impact value, the humidity impact value, the wind speed impact value, the air quality impact value, and the distance impact value to map and obtain a second environment impact value.

[0083] In this embodiment, the temperature impact value is obtained based on the ambient temperature and a preset temperature impact weight, the humidity impact value is obtained based on the ambient humidity and a preset humidity impact weight, the wind speed impact value is obtained based on the ambient wind speed and a preset wind speed impact weight, the air quality impact value is obtained based on the air quality and a preset air quality impact weight, and the distance impact value is obtained based on the distance between the laser transmitter host 10 and the target object and a preset distance impact weight. The calculation method of the humidity impact value and the wind speed impact in the above embodiment can be referred to. The method of querying the preset second environmental impact value table based on the temperature impact value, humidity impact value, wind speed impact value, air quality impact value, and distance impact value to map and obtain the second environmental impact value can refer to the above embodiment; the preset second environmental impact value table can also be adjusted according to user needs, which is not limited by this solution.

[0084] In one embodiment, the laser ignition control method further comprises the following steps:

[0085] Establish communication with external devices or cloud servers and obtain weather information;

[0086] The transmitting host is controlled to start emitting laser light to the target object after a preset time according to weather information, or the laser transmitting host 10 is controlled to stop emitting laser light after a preset time according to weather information.

[0087] In this embodiment, communication can also be established with an external device or cloud server to obtain timely weather information to monitor weather changes, such as rainy and sunny periods, as well as other weather conditions. This allows the laser transmitter host 10 to be controlled to emit or stop laser light based on weather information. For example, if weather information indicates that rain will occur in ten minutes on a sunny day, the laser transmitter host 10 can be controlled to stop emitting laser light at the target after ten minutes, thus avoiding unnecessary energy loss in the laser transmitter host 10. This is because the ambient humidity may not immediately increase when rain begins, making it impossible to control the laser transmitter host 10 to stop emitting laser light based on the ambient humidity parameter. On the other hand, if weather information indicates that clear weather will occur in ten minutes on a rainy day, the laser transmitter host 10 can be controlled to resume emitting laser light at the target after ten minutes. This is because the ambient humidity may not immediately decrease when the rain stops, and in this case, the laser transmitter host 10 can be controlled to stop emitting laser light based on the ambient humidity parameter. Therefore, obtaining weather information allows for more timely control of the operating conditions of the laser transmitter host 10.

[0088] The invention also provides a laser ignition device.

[0089] In one embodiment, the laser ignition device comprises:

[0090] Laser emission host 10;

[0091] The flame sensor 20 is used to detect the flame intensity and output a flame intensity signal;

[0092] An environment detection component 30, the environment detection component 30 is used to detect the environment and output environmental parameters;

[0093] A controller 40, wherein the input end of the controller 40 is connected to the output end of the flame sensor 20, the input end of the controller 40 is also connected to the output end of the environment detection component 30, and the output end of the controller 40 is connected to the input end of the laser emission host 10, and the controller 40 is used to obtain a flame intensity value according to the flame intensity signal and obtain a flame stability threshold according to the environmental parameter;

[0094] The controller 40 controls the laser emission host 10 to emit laser light toward the target object when the flame intensity value is lower than the preset flame intensity threshold value;

[0095] The controller 40 controls the laser emitting host 10 to stop emitting laser when the flame intensity value is greater than or equal to the flame stabilization threshold;

[0096] A memory is electrically connected to the controller 40 , and the memory stores a computer program. When the computer program is executed by the controller 40 , the steps of the laser ignition control method described above are implemented.

[0097] In this embodiment, the laser transmitter host 10 can be composed of a laser medium, a pump source, an optical resonator, optical components, and a control circuit. The laser transmitter host 10 can generate a laser beam and emit laser light of a certain intensity toward a target, thereby igniting the target. The target can be a fuel, such as wood or leaves, for starting a fire. The flame sensor 20 is a device used to detect the presence of flames. It can identify specific wavelengths in the spectrum that are associated with flame characteristics and indicate the presence of flames through an electrical signal or other output. The flame sensor 20 can be implemented using various operating principles and technologies, such as photosensors, infrared sensors, ultraviolet sensors, and thermal sensors. The environmental monitoring component 30 can be composed of various environmental sensors. For example, if environmental factors include temperature and humidity, the environmental monitoring component 30 may include a temperature sensor and a humidity sensor. The controller 40 can be a digital signal processor (DSP), a field programmable gate array (FPGA), a microprocessor, an MCU, or other electronic components. The controller 40 can determine a flame stabilization threshold based on environmental parameters. When the flame intensity falls below the preset flame intensity threshold, it controls the laser emitting host 10 to emit laser light toward the target. When the flame intensity is greater than or equal to the flame stabilization threshold, it controls the laser emitting host 10 to cease laser light emission. This minimizes the impact of environmental factors on the ignition of the target by the laser ignition device. Furthermore, cessation of laser light emission after flame stabilization reduces energy consumption in the laser emitting host 10. The memory can be a type of memory such as E2PROM or DDR3. The memory can store computer programs, which the controller 40 can execute to implement the steps of the laser ignition control method described in the above embodiment.

[0098] In one embodiment, the environment detection component 30 includes:

[0099] A humidity detection sensor is used to detect the ambient humidity and output the ambient humidity parameter to the controller 40;

[0100] The wind speed detection sensor is used to detect the ambient wind speed and output the ambient wind speed parameter to the controller 40 .

[0101] In this embodiment, the environmental detection component 30 may be composed of a humidity detection sensor and a wind speed detection sensor, or may be composed of other devices capable of detecting ambient humidity and wind speed. The environmental detection component 30 may also include other detection devices for environmental factors that may affect flame intensity, such as air quality detection devices, and the specific configuration may be based on actual conditions and user needs.

[0102] The above descriptions are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's description and drawings under the technical concept of the present invention, or any direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A laser ignition control method, applied to a laser ignition device, wherein the laser ignition device has a laser emission host, and the laser emission host is used to emit laser to ignite a target object, characterized in that: The laser ignition control method comprises the following steps: Acquiring a flame intensity signal and a first environmental parameter of a target object; Calculating a flame intensity value according to the flame intensity signal, and determining a corresponding flame stability threshold according to the first environmental parameter; When the flame intensity value is lower than the flame stability threshold, the laser emission host is controlled to continue emitting laser at the target; When the flame intensity value is greater than or equal to the flame stabilization threshold, controlling the laser emission host to stop emitting laser; Acquiring a second environmental parameter, and calculating a second environmental impact value based on the second environmental parameter; When the second environmental impact value is less than a first preset reference value, controlling the laser emission host to reduce the intensity of the laser emission; When the second environmental impact value is greater than a second preset reference value, controlling the laser emission host to increase the intensity of the laser emission; The first preset reference value is smaller than the second preset reference value so as to achieve compatibility of maintaining the flame intensity after the target object is ignited and reducing energy loss; The first environmental parameters include ambient humidity and ambient wind speed; the second environmental parameters include ambient temperature, ambient humidity, ambient wind speed, air quality, and the distance between the laser transmitter host and the target object; Furthermore, determining the corresponding flame stabilization threshold according to the first environmental parameter specifically includes the following steps: The humidity impact value is obtained according to the ambient humidity and the preset humidity impact weight, and the wind speed impact value is obtained according to the ambient wind speed and the preset wind speed impact weight; A preset flame stabilization threshold value table is searched according to the humidity impact value and the wind speed impact value to map and obtain a flame stabilization threshold value.

2. The laser ignition control method according to claim 1, wherein: The laser ignition control method further comprises the following steps: When the humidity impact value is greater than a preset humidity threshold, or the wind speed impact value is greater than a preset wind speed threshold, the laser emission host is controlled to stop emitting laser.

3. The laser ignition control method according to claim 1, wherein: Calculating the second environmental impact value according to the second environmental parameter specifically includes the following steps: A temperature influence value is obtained according to the ambient temperature and a preset temperature influence weight, a humidity influence value is obtained according to the ambient humidity and a preset humidity influence weight, a wind speed influence value is obtained according to the ambient wind speed and a preset wind speed influence weight, an air quality influence value is obtained according to the air quality and a preset air quality influence weight, and a distance influence value is obtained according to the distance between the laser emission host and the target object and a preset distance influence weight; A preset second environment impact value table is queried according to the temperature impact value, the humidity impact value, the wind speed impact value, the air quality impact value, and the distance impact value to map and obtain a second environment impact value.

4. The laser ignition control method according to claim 1, wherein: The laser ignition control method further comprises the following steps: Establish communication with external devices or cloud servers and obtain weather information; According to the weather information, the laser emission host is controlled to start emitting laser at the target after a preset time, or according to the weather information, the laser emission host is controlled to stop emitting laser after a preset time.

5. A laser ignition device, characterized in that: include: Laser emission host; A flame sensor, the flame sensor is used to detect the flame intensity of the target object and output a flame intensity signal; An environment detection component, which is used to detect the environment and output environmental parameters; A controller, wherein the input end of the controller is connected to the output end of the flame sensor, the input end of the controller is further connected to the output end of the environment detection component, the output end of the controller is connected to the input end of the laser emission host, and the controller is used to obtain a flame intensity value according to the flame intensity signal and obtain a flame stability threshold according to the environmental parameter; When the flame intensity value is lower than a preset flame intensity threshold, the controller controls the laser emission host to emit laser towards the target object; The controller controls the laser emission host to stop emitting laser when the flame intensity value is greater than or equal to the flame stabilization threshold; A memory is electrically connected to the controller, wherein the memory stores a computer program, and when the computer program is executed by the controller, the steps of the laser ignition control method according to any one of claims 1 to 4 are implemented.

6. The laser ignition device according to claim 5, characterized in that: The environmental detection component includes: A humidity detection sensor is used to detect the ambient humidity and output the ambient humidity parameter to the controller; The wind speed detection sensor is used to detect the ambient wind speed and output the ambient wind speed parameters to the controller.

Citation Information

Patent Citations

  • Laser ignition device and laser ignition control method

    CN116538532A