Laser ignition device and laser ignition control method

Abstract

The present invention discloses a laser ignition device and a laser ignition control method. The laser ignition device includes: a control host; a laser emitting device electrically connected to the control host and, under control of the control host, emitting a laser toward a target to ignite the target; and a flame identification device electrically connected to the control host and configured to detect a flame and output a corresponding flame detection signal to the control host. The control host is configured to control the laser emitting device to emit or stop emitting the laser based on the flame detection signal. The present invention can solve the problem of high energy consumption in existing laser igniters.

Description

Technical Field

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

[0002] During early exploration, the petrochemical industry requires the development of exploration sites and the drilling of wells. Before production begins, the wells are unstable, and oil and gas wells often emit exhaust gases, which are a mixture of various liquids and gases, including natural gas, carbon dioxide, hydrogen sulfide, water, and acid. Conventional treatment involves placing diesel barrels in the blowdown pool and igniting them before release to serve as an open flame source to ignite the exhaust gases. This method requires periodic valve closures for refueling, which is inefficient and poses safety risks.

[0003] Using a laser ignition device, a laser beam can be focused onto a target within the spray pool, generating a high temperature that acts as an ignition source, igniting the gas. This method operates over a long range, enabling remote, unmanned ignition and long-term continuous operation, significantly improving operational efficiency and safety. However, laser igniters are typically deployed in field environments, often without access to the power grid and requiring battery power. Existing laser igniters typically operate continuously for extended periods, resulting in high energy consumption and requiring frequent battery charging or replacement. Summary of the Invention

[0004] The main purpose of the present invention is to provide a laser ignition device, aiming to solve the problem of high energy consumption of existing laser ignition devices.

[0005] To achieve the above-mentioned purpose, the laser ignition device proposed in the present invention comprises:

[0006] Control host;

[0007] a laser emitting device, the laser emitting device being electrically connected to the control host, and emitting a laser toward a target object to ignite the target object under the control of the control host;

[0008] a flame identification device, the flame identification device being electrically connected to the control host, the flame identification device being used to detect flames and output corresponding flame detection signals to the control host;

[0009] The control host is used to control the laser emitting device to emit laser / stop emitting laser according to the flame detection signal.

[0010] Optionally, the control host is further configured to determine the size of the flame according to the flame detection signal, and control the laser emitting device to adjust the laser emission power according to the flame size.

[0011] Optionally, the laser ignition device further includes:

[0012] A wind force detection device, electrically connected to the control host, configured to detect ambient wind force and output a corresponding wind force detection signal to the control host;

[0013] The control host is further used to control the laser emitting device to adjust the laser emission power according to the wind detection signal.

[0014] Optionally, the control host is also used to determine the ignition duration according to the wind detection signal, and control the laser emitting device to continuously emit laser to the target object within the ignition duration until the flame size reaches a preset flame size determined according to the flame detection signal.

[0015] Optionally, the laser ignition device further includes:

[0016] A humidity detection device, the humidity detection device being electrically connected to the control host, the humidity detection device being used to detect ambient humidity and output a corresponding humidity detection signal to the control host;

[0017] The control host is further used to control the laser emitting device to adjust the laser emitting power according to the humidity detection signal.

[0018] Optionally, the control host is also used to determine the ignition duration according to the humidity detection signal, and control the laser emitting device to continuously emit laser to the target object within the ignition duration until the flame size reaches a preset flame size determined according to the flame detection signal.

[0019] Optionally, the laser ignition device further includes:

[0020] A communication module, the communication module being electrically connected to the control host and used to implement a communication connection between the control host and an external terminal or a cloud server;

[0021] The control host is further configured to obtain weather parameters through the communication module, and control the laser emitting device to emit laser / stop emitting laser according to the obtained weather parameters; and / or,

[0022] The laser emission device is controlled to adjust the laser emission power according to the acquired weather parameters.

[0023] The present invention also provides a laser ignition control method, which is applied to the laser ignition device as described above, and includes the following steps:

[0024] Obtaining flame information of the target object and determining the combustion state of the target object based on the flame information;

[0025] When the target object is not burning, controlling the laser emitting device to emit laser to ignite the target object;

[0026] When the target object is burning, the laser emitting device is controlled to stop emitting laser.

[0027] Optionally, the step of controlling the laser emitting device to emit laser includes:

[0028] Get environmental parameters;

[0029] Determining the laser emission power of the laser emission device according to environmental parameters;

[0030] Controlling the laser emitting device to emit laser light at a determined emission power; wherein,

[0031] The environmental parameters include at least one of wind parameters, humidity parameters, temperature parameters and weather parameters.

[0032] Optionally, after the step of controlling the laser emitting device to emit laser light at the determined emission power, the method further includes:

[0033] Obtaining flame information of the target object, and determining the flame size of the target object according to the flame information;

[0034] When the flame of the target object is less than a preset flame threshold, the laser emission power of the laser emitting device is increased until the flame of the target object is no less than the preset flame threshold, and the laser emitting device is controlled to stop emitting laser.

[0035] By providing a flame recognition device and a control host, the present invention enables the control host to determine whether the target object has been successfully ignited based on the received flame detection signal. Based on this, the control host can control the laser emitting device to emit or stop emitting the laser, thereby achieving the automatic ignition function of the laser ignition device. The technical solution of the present invention can control the laser emitting device to operate only when the target object has not been ignited or the flame on the target object has been extinguished. This eliminates the need for the laser emitting device to operate continuously for long periods of time, effectively reducing the power consumption of the laser emitting device and conserving energy. This allows the laser ignition device to maintain a longer operating time when powered by batteries, making it suitable for outdoor applications where mains power is unavailable and reducing the labor costs of regular battery replacement or charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] 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.

[0037] Figure 1This is a schematic diagram of the functional modules of an embodiment of a laser ignition device of the present invention;

[0038] Figure 2 This is a schematic diagram of the functional modules of another embodiment of the laser ignition device of the present invention;

[0039] Figure 3 This is a schematic structural diagram of an embodiment of a laser ignition device of the present invention;

[0040] Figure 4 This is a flow chart of an embodiment of a laser ignition control method of the present invention;

[0041] Figure 5 This is a detailed flow chart of an embodiment of a laser ignition control method of the present invention;

[0042] Figure 6 This is a detailed flow chart of another embodiment of the laser ignition control method of the present invention.

[0043] Description of Figure Numbers:

[0044] Label name Label name 10 Control host 40 Wind detection device 20 Laser emission device 50 Humidity detection device 30 Flame detection device 60 Communication module

[0045] 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

[0046] 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.

[0047] 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.

[0048] 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 specified 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.

[0049] Currently, laser ignition devices focus a laser beam on a target within a spray pool, generating a high temperature that acts as an ignition source, igniting the gas. This method operates over a long distance, enabling remote, unmanned ignition and long-term continuous operation, significantly improving operational efficiency and safety. However, laser igniters are typically deployed in outdoor environments, often without access to the power grid and requiring battery power. Existing laser igniters typically operate continuously for extended periods, resulting in high energy consumption and requiring frequent battery charging or replacement to ensure continuous operation.

[0050] In order to solve the above problems, the present invention proposes a laser ignition device, referring to Figures 1 to 3 In one embodiment, the laser ignition device comprises:

[0051] Control host 10;

[0052] a laser emitting device 20, the laser emitting device 20 being electrically connected to the control host 10, and emitting a laser toward a target object to ignite the target object under the control of the control host 10;

[0053] A flame identification device 30, the flame identification device 30 being electrically connected to the control host 10, the flame identification device 30 being used to detect flames and output corresponding flame detection signals to the control host 10;

[0054] The control host 10 is used to control the laser emitting device 20 to emit laser or stop emitting laser according to the flame detection signal.

[0055] In this embodiment, the control host 10 may be composed of modules such as a controller, a power module, a communication module 60 and an input module, which are used to receive control instructions issued by the user and control the operation of the corresponding modules according to the control instructions issued by the user. The laser emitting device 20 may be composed of a laser and a laser lens. The laser is used to generate laser and emit the laser through the laser lens. The control host 10 can control the laser to generate or stop generating laser, thereby controlling whether the laser emitting device 20 emits laser to the target object. In addition, the control host 10 can also control the laser to adjust the emission power of the laser, thereby adjusting the intensity of the emitted laser. In addition, the laser emitting device 20 can also be composed of a laser and a laser lens that are separately set. Figure 3 , Figure 3 This is a schematic diagram of the structure of an embodiment of a laser ignition device. The laser lens can be integrated with the flame identification device 30 and mounted on a vertical pole and a pan / tilt head. The laser is connected to the laser via a cable, and the laser can be integrated with the control host 10 within the same chassis. By separating the laser and the laser lens, the laser lens can be flexibly positioned, allowing it to be accurately aligned with a target object to ignite the target.

[0056] The flame identification device 30 can be implemented by using detection devices such as ultraviolet sensors, such as ultraviolet phototubes. The ultraviolet phototubes can well detect ultraviolet radiation in the spectral range of 185nm to 300nm, and the spectral range of flames is just within the detection range of the ultraviolet phototubes. Therefore, the ultraviolet phototubes can receive the ultraviolet radiation of the flame and generate corresponding photocurrent. The control host 10 can determine whether the target object is burning based on the generated photocurrent, and determine the size of the flame on the target object by the size of the photocurrent.

[0057] In this embodiment, the control host 10 can determine whether the target object has been successfully ignited based on the received flame detection signal and control the laser emitting device 20 to emit or stop emitting laser light based on whether the target object has been successfully ignited, thereby implementing the automatic ignition function of the laser ignition device. Specifically, the laser ignition device has an automatic ignition function and can automatically emit laser light to ignite the target object when the target object has not been ignited or the flame on the target object has been extinguished. The laser ignition device uses a flame recognition device 30 to detect the flame and output a corresponding flame detection signal to the control host 10. When the control host 10 determines that the target object has not been ignited or the flame on the target object has been extinguished based on the flame detection signal, it controls the laser emitting device 20 to emit laser light toward the target object. When the control host 10 determines that the target object has been ignited based on the flame detection signal, it controls the laser emitting device 20 to stop emitting laser light. In this configuration, the laser emitting device 20 is controlled to emit laser light toward the target object to ignite the target object when the target object has not been ignited or the flame on the target object has been extinguished, and is controlled to stop emitting laser light when the target object has been successfully ignited, thereby implementing the automatic ignition function of the laser ignition device. At the same time, the control host 10 controls the laser emitting device 20 to work only when the target object is not ignited or the flame on the target object is extinguished, so that the target object can remain in a burning state, and there is no need for the laser emitting device 20 to work continuously for a long time. It can effectively reduce the power consumption of the laser emitting device 20 and save energy, so that the laser ignition device can maintain a longer service life when powered by a battery, reduce the frequency of regular battery replacement or charging by staff, and reduce the labor cost of maintaining the device.

[0058] The present invention provides a flame identification device 30 and a control host 10, enabling the control host 10 to determine whether the target object has been successfully ignited based on the received flame detection signal, and to control the laser emitting device 20 to emit or stop emitting the laser based on whether the target object has been successfully ignited, thereby realizing the automatic ignition function of the laser ignition device. The technical solution of the present invention can control the laser emitting device 20 to operate only when the target object has not been ignited or the flame on the target object has been extinguished, eliminating the need for the laser emitting device 20 to operate continuously for a long time. It can effectively reduce the power consumption of the laser emitting device 20, saving energy, and enabling the laser ignition device to maintain a longer service life when powered by batteries. It is suitable for use in outdoor applications where there is no access to mains electricity, and reduces the labor cost of workers regularly replacing or charging batteries.

[0059] Reference Figures 1 to 3 In one embodiment, the control host 10 is further used to determine the flame size according to the flame detection signal, and control the laser emitting device 20 to adjust the laser emission power according to the flame size.

[0060] It is understood that when a target is ignited by a laser, environmental factors such as wind and humidity may cause the flame to be very small and quickly extinguish, resulting in the target failing to burn successfully. Therefore, in this embodiment, the control host 10 can also determine the size of the flame on the target based on the received flame detection signal and control the laser emitting device 20 to adjust the laser emission power accordingly, so that the flame on the target reaches a predetermined size. Specifically, the flame identification device 30 can be implemented using an ultraviolet photoelectric tube. The control host 10 can then determine the size of the flame on the target based on the photocurrent generated by the ultraviolet photoelectric tube. When the target is ignited but the flame is small, the control host 10 can control the laser emitting device 20 to continue operating and increase the emission power of the laser emitting device 20, making it easier to ignite the target, thereby increasing the flame size and allowing the target to burn longer. When the target is ignited and the flame is large, the control host 10 can control the laser emitting device 20 to stop operating, or control the laser emitting device 20 to gradually reduce the emission power until it stops operating, thereby saving energy during the target combustion.

[0061] Reference Figures 1 to 3 In one embodiment, the laser ignition device further comprises:

[0062] A wind force detection device 40 , which is electrically connected to the control host 10 and is used to detect ambient wind force and output a corresponding wind force detection signal to the control host 10 ;

[0063] The control host 10 is further configured to control the laser emitting device 20 to adjust the laser emission power according to the wind detection signal.

[0064] It is understandable that laser ignition devices are often used outdoors and are easily affected by wind, which can result in the target object failing to ignite. Therefore, in this embodiment, a wind detection device 40 is further provided for detecting the ambient wind force. The wind detection device 40 can be implemented by a measuring device such as an anemometer or a wind sensor, so that the control host 10 determines the ambient wind force based on the wind force detection signal output by the wind detection device 40 and controls the laser emitting device 20 to adjust the laser emission power based on the ambient wind force. Specifically, when the ambient wind force is determined to be strong according to the wind force detection signal, the laser emission power of the laser emitting device 20 is increased, so that the target object can be successfully ignited. When the ambient wind force is determined to be weak according to the wind force detection signal, the laser emission power of the laser emitting device 20 can be appropriately reduced, thereby reducing the device power consumption and saving energy.

[0065] Optionally, the control host 10 is also used to determine the ignition duration according to the wind detection signal, and control the laser emitting device 20 to continuously emit laser to the target object within the ignition duration until the flame size reaches a preset flame size determined according to the flame detection signal.

[0066] It is understandable that due to the presence of ambient wind, during laser ignition, the target may be ignited and then blown out by the wind. Therefore, in this embodiment, the control host 10 is also used to determine the ignition duration based on the wind detection signal, and control the laser emitting device 20 to continuously emit laser light to the target during the ignition duration to ensure that the target can be fully ignited. Specifically, when the control host 10 determines that the current ambient wind is strong based on the wind detection signal, a longer ignition duration is set accordingly to ensure that the target can be ignited and the flame size can reach a preset flame size to avoid being blown out by the ambient wind. Correspondingly, when the control host 10 determines that the current ambient wind is weak based on the wind detection signal, a shorter ignition duration can be set to reduce device power consumption and save energy.

[0067] Reference Figures 1 to 3 In one embodiment, the laser ignition device further comprises:

[0068] A humidity detection device 50, the humidity detection device 50 is electrically connected to the control host 10, the humidity detection device 50 is used to detect the ambient humidity and output a corresponding humidity detection signal to the control host 10;

[0069] The control host 10 is further configured to control the laser emitting device 20 to adjust the laser emission power according to the humidity detection signal.

[0070] It is understandable that laser ignition devices are often used outdoors and are easily affected by ambient humidity, which can result in the target object failing to ignite. Therefore, in this embodiment, a humidity detection device 50 is further provided for detecting ambient humidity. The humidity detection device 50 can be implemented using a measuring device such as a hygrometer or a humidity sensor, so that the control host 10 determines the ambient humidity based on the humidity detection signal output by the humidity detection device 50 and controls the laser emission device 20 to adjust the laser emission power based on the ambient humidity. Specifically, when the ambient humidity is determined to be high based on the humidity detection signal, the laser emission power of the laser emission device 20 is increased, thereby enabling the target object to be successfully ignited. When the ambient humidity is determined to be low based on the humidity detection signal, the laser emission power of the laser emission device 20 can be appropriately reduced, thereby reducing the device's power consumption and saving energy.

[0071] Optionally, the control host 10 is also used to determine the ignition duration according to the humidity detection signal, and control the laser emitting device 20 to continuously emit laser to the target object within the ignition duration until the flame size reaches a preset flame size determined according to the flame detection signal.

[0072] It is understandable that due to the presence of ambient humidity, during laser ignition, there may be a situation where the target object cannot be ignited due to high humidity. However, in the case of high humidity, the target object can be successfully ignited by increasing the ignition duration. Therefore, in this embodiment, the control host 10 is also used to determine the ignition duration based on the humidity detection signal, and control the laser emitting device 20 to continuously emit laser light to the target object within the ignition duration to ensure that the target object can be fully ignited. Specifically, when the control host 10 determines that the current ambient humidity is high based on the humidity detection signal, a longer ignition duration is set accordingly to ensure that the target object can be ignited and the flame size can reach a preset flame size, thereby avoiding the situation where the target object cannot be ignited due to high ambient humidity. Correspondingly, when the control host 10 determines that the current ambient humidity is low based on the humidity detection signal, a shorter ignition duration can be set to reduce the power consumption of the device and save energy.

[0073] Reference Figures 1 to 3 In one embodiment, the laser ignition device further comprises:

[0074] A communication module 60, which is electrically connected to the control host 10 and is used to implement a communication connection between the control host 10 and an external terminal or a cloud server;

[0075] The control host 10 is further configured to obtain weather parameters through the communication module 60 and control the laser emitting device 20 to emit laser / stop emitting laser according to the obtained weather parameters; and / or,

[0076] The laser emitting device 20 is controlled to adjust the laser emitting power according to the acquired weather parameters.

[0077] In this embodiment, the communication module 60 can be a wired communication module or a wireless communication module to achieve communication connection with an external terminal or cloud server. The communication module 60 can be a 485 communication module, a 232 communication module, a WIFI module, a 5G communication module, or other communication modules. This allows the control host 10 to obtain weather parameters from the external terminal or cloud server through the communication module 60 and determine the current environment based on the obtained weather parameters, such as the current ambient wind speed, ambient humidity, ambient temperature, and current weather conditions. This allows the control host 10 to determine whether to initiate laser ignition and control the laser emitting device 20 to adjust the laser emission power based on the current environment. For example, when the control host 10 determines that the current weather is heavy rain, rainstorm, typhoon, etc. based on the obtained weather parameters, the control host 10 controls the laser emitting device 20 to stop operating. For another example, when the control host 10 determines that the current ambient wind speed or ambient humidity is high based on the obtained weather parameters, the control host 10 controls the laser emitting device 20 to increase the laser emission power, thereby successfully igniting the target object. In addition, by setting up the communication module 60, the control host 10 can also communicate with the external terminal through the control host 10. With this setting, the user can also send control instructions to the control host 10 through the external terminal to achieve remote control, thereby improving the practicality and convenience of the laser ignition device.

[0078] The present invention also proposes a laser ignition control method, which is applied to the laser ignition device as described above. Figure 4 In one embodiment, the steps include:

[0079] Step S100: Obtain flame information of the target object, and determine the combustion state of the target object according to the flame information;

[0080] Step S200: When the target object is not burning, controlling the laser emitting device 20 to emit laser light to ignite the target object;

[0081] Step S300: When the target object is burning, the laser emitting device 20 is controlled to stop emitting laser light.

[0082] In this embodiment, the laser emitting device 20 can be controlled by the control host 10. The control host 10 can be provided with a processor for controlling the regeneration heater, such as an MCU, a DSP (Digital Signal Process, digital signal processing chip), an FPGA (Field Programmable Gate Array, programmable logic gate array chip), etc., for controlling the laser emitting device 20 to start / stop working, and for controlling the laser emitting device 20 to adjust the laser emission power, etc.

[0083] In this embodiment, the control host 10 is capable of acquiring flame information of a target object. This flame information can be acquired by a flame identification device 30. For example, an ultraviolet phototube can be used as the flame identification device 30. The ultraviolet phototube is highly capable of detecting ultraviolet radiation in the spectral range of 185 nm to 300 nm. The spectral range of a flame falls within the detection range of the ultraviolet phototube. Therefore, the ultraviolet phototube can receive the ultraviolet radiation of the flame and generate a corresponding photocurrent. The control host 10 can then determine whether the target object is burning based on the generated photocurrent and determine the size of the flame on the target object based on the magnitude of the photocurrent. The control host 10 can determine the target object's combustion state based on the acquired flame information, that is, determine whether the target object has been successfully ignited. Based on this acquired flame information, the control host 10 can control the laser emitting device 20 to emit or stop emitting laser light, thereby implementing the automatic ignition function of the laser ignition device. Specifically, when the control host 10 determines that the flame on the target object is extinguished based on the acquired flame information, the laser emitting device 20 is controlled to emit laser light toward the target object until the control host 10 determines that the target object is ignited based on the acquired flame information. At this point, the laser emitting device 20 is controlled to stop emitting laser light. With this configuration, when the flame on the target object is extinguished, the laser emitting device 20 is controlled to emit a laser toward the target object to ignite the target object. When the target object is successfully ignited, the laser emitting device 20 is controlled to stop operating, thus achieving the automatic ignition function of the laser ignition device. Furthermore, the control host 10 only controls the laser emitting device 20 to operate when the flame is extinguished, eliminating the need for the laser emitting device 20 to operate continuously for a long period of time. This can effectively reduce the power consumption of the laser emitting device 20, conserving energy, and enabling the laser ignition device to maintain a longer service life when powered by batteries. This reduces the frequency of regular battery replacement or charging required by personnel, and reduces the labor cost of maintaining the device.

[0084] Reference Figure 5 In one embodiment, the step of controlling the laser emitting device 20 to emit laser light includes:

[0085] Step S210: Acquire environmental parameters;

[0086] Step S220: determining the laser emission power of the laser emission device 20 according to the environmental parameters;

[0087] Step S230: Control the laser emitting device 20 to emit laser light at the determined emission power; wherein,

[0088] The environmental parameters include at least one of wind parameters, humidity parameters, temperature parameters and weather parameters.

[0089] It is understood that laser ignition devices are often used outdoors and are easily affected by environmental factors such as wind, humidity, and temperature, which may result in the target object failing to ignite. Therefore, in this embodiment, the control host 10 is further capable of acquiring environmental parameters and determining the laser emission power of the laser emission device 20 based on the environmental parameters. The control host 10 then controls the laser emission device 20 to emit laser light at the determined emission power to successfully ignite the target object. Environmental parameters may include wind parameters, humidity parameters, temperature parameters, and weather parameters. Environmental parameters can be acquired by configuring modules such as a wind detection device 40, a humidity detection device 50, a temperature detection device, and a communication module 60. The control host 10 then determines the laser emission power of the laser emission device 20 based on the acquired environmental parameters. For example, when the current environmental wind or humidity is high, a higher laser emission power is required to successfully ignite the target object. Similarly, when the current environmental temperature is high, a lower laser emission power is required to successfully ignite the target object. This can reduce the energy consumption of the laser ignition device and conserve energy.

[0090] In addition, the control host 10 can also determine the ignition duration based on the obtained environmental parameters, and control the laser emitting device 20 to continuously emit laser light toward the target object within the ignition duration to ensure that the target object can be fully ignited. For example, when the control host 10 determines based on the obtained environmental parameters that the current ambient humidity or ambient wind speed is high, a longer ignition duration is set accordingly to ensure that the target object can be ignited and the flame size can reach a preset flame size, thereby avoiding the situation where the target object cannot be ignited due to high ambient humidity. Correspondingly, when the control host 10 determines based on the humidity detection signal that the current ambient humidity or ambient wind speed is low, a shorter ignition duration can be set, thereby reducing device power consumption and saving energy.

[0091] Reference Figure 6 In one embodiment, after the step of controlling the laser emitting device 20 to emit laser light at the determined emission power, the method further includes:

[0092] Step S240: Obtain flame information of the target object, and determine the flame size of the target object according to the flame information;

[0093] When the flame of the target object is less than the preset flame threshold, the laser emission power of the laser emitting device 20 is increased until the flame of the target object is not less than the preset flame threshold, and the laser emitting device 20 is controlled to stop emitting laser.

[0094] It is understood that when the control host 10 controls the laser emitting device 20 to emit laser light at a determined emission power, the determined emission power may not be sufficient to properly ignite the target due to errors in the acquired parameters, misjudgment, or other reasons, resulting in a small flame on the target that quickly extinguishes. Therefore, after the control host 10 controls the laser emitting device 20 to emit laser light at the determined emission power, the control host 10 also obtains flame information about the target and determines the size of the target flame based on the flame information. Specifically, an ultraviolet phototube can be used to obtain the flame information, and the control host 10 can determine the size of the target flame based on the magnitude of the photocurrent. When the control host 10 determines, based on the flame information, that the target flame is less than a preset flame threshold, i.e., that the target flame is small, the control host 10 controls the laser emitting device 20 to increase the laser emission power, thereby bringing the target flame to a normal combustion state, preventing the target flame from quickly extinguishing due to a small flame, and ensuring that the target can be successfully ignited.

[0095] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A laser ignition device, characterized in that: The laser ignition device is applied in a field environment; the laser ignition device comprises: Control host; a laser emitting device, the laser emitting device being electrically connected to the control host, and emitting a laser toward a target object to ignite the target object under the control of the control host; a flame identification device, the flame identification device being electrically connected to the control host, the flame identification device being used to detect flames and output corresponding flame detection signals to the control host; A wind force detection device, electrically connected to the control host, configured to detect ambient wind force and output a corresponding wind force detection signal to the control host; A humidity detection device, the humidity detection device being electrically connected to the control host, the humidity detection device being used to detect ambient humidity and output a corresponding humidity detection signal to the control host; The control host is used to control the laser emitting device to emit laser / stop emitting laser according to the flame detection signal; the control host is also used to control the laser emitting device to adjust the laser emission power according to the wind detection signal; the control host is also used to control the laser emitting device to adjust the laser emission power according to the humidity detection signal.

2. The laser ignition device according to claim 1, characterized in that: The control host is further used to determine the flame size according to the flame detection signal, and control the laser emitting device to adjust the laser emission power according to the flame size.

3. The laser ignition device according to claim 1, characterized in that: The control host is also used to determine the ignition duration according to the wind detection signal, and control the laser emitting device to continuously emit laser to the target object within the ignition duration until the flame size reaches a preset flame size determined according to the flame detection signal.

4. The laser ignition device according to claim 1, wherein: The control host is also used to determine the ignition duration according to the humidity detection signal, and control the laser emitting device to continuously emit laser to the target object within the ignition duration until the flame size reaches a preset flame size determined according to the flame detection signal.

5. The laser ignition device according to claim 1, wherein: The laser ignition device also includes: A communication module, the communication module being electrically connected to the control host and used to implement a communication connection between the control host and an external terminal or a cloud server; The control host is further configured to obtain weather parameters through the communication module, and control the laser emitting device to emit laser / stop emitting laser according to the obtained weather parameters; and / or, The laser emission device is controlled to adjust the laser emission power according to the acquired weather parameters.

6. A laser ignition control method, applied to the laser ignition device according to any one of claims 1 to 5, characterized in that: The steps include: Obtaining flame information of the target object and determining the combustion state of the target object based on the flame information; When the target object is not burning, controlling the laser emitting device to emit laser to ignite the target object; When the target object is burning, the laser emitting device is controlled to stop emitting laser.

7. The laser ignition control method according to claim 6, wherein: The step of controlling the laser emitting device to emit laser comprises: Get environmental parameters; Determine the laser emission power of the laser emission device according to environmental parameters; Controlling the laser emitting device to emit laser light at a determined emission power; wherein, The environmental parameters include at least one of wind parameters, humidity parameters, temperature parameters and weather parameters.

8. The laser ignition control method according to claim 7, wherein: After the step of controlling the laser emitting device to emit laser light at the determined emission power, the method further includes: Obtaining flame information of the target object, and determining the flame size of the target object according to the flame information; When the flame of the target object is less than a preset flame threshold, the laser emission power of the laser emitting device is increased until the flame of the target object is no less than the preset flame threshold, and the laser emitting device is controlled to stop emitting laser.

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