CN112614302B - Fire detection method, device and system and electronic equipment - Google Patents
Fire detection method, device and system and electronic equipment Download PDFInfo
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
- G08B17/125—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions by using a video camera to detect fire or smoke
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
Abstract
The embodiment of the invention provides a fire detection method, a fire detection device, a fire detection system and electronic equipment. Wherein the method comprises the following steps: acquiring a visible light image of a high-temperature target, wherein the high-temperature target is a target with the temperature higher than a preset temperature threshold value in a monitoring scene determined from the monitoring scene according to an infrared light signal acquired from the monitoring scene; judging whether the high-temperature target meets preset conditions or not according to the visible light image to obtain a judgment result, wherein the preset conditions comprise fire phenomenon conditions and/or infrared light source conditions, the fire phenomenon conditions are that the high-temperature target generates a preset fire phenomenon, and the infrared light source conditions are that the high-temperature target is a preset infrared light source; and determining whether the high-temperature target is in a fire condition according to the judgment result. On the basis of temperature judgment, whether the reason causing the high temperature is a fire condition or not can be further judged according to the information presented in the visible light image, so that the false alarm rate is effectively reduced.
Description
Technical Field
The invention relates to the technical field of photoelectric detection, in particular to a fire detection method, a fire detection device, a fire detection system and electronic equipment.
Background
In order to collect countermeasures in time to avoid fire spreading, the fire needs to be found in time. In the related technology, according to the characteristic that the temperature of the target generating the fire is high, a thermal imaging camera is used for shooting a thermal imaging image of a monitoring scene, whether the target with the overhigh temperature exists in the monitoring scene is determined by analyzing the thermal imaging image, and if the target with the overhigh temperature exists in the monitoring scene, the target generating the fire is determined.
However, in some complex monitoring scenarios, the temperature of the target may be too high due to other factors besides the fire, and therefore, the false alarm rate is high in these monitoring scenarios.
Disclosure of Invention
The embodiment of the invention aims to provide a fire detection method, a fire detection device, a fire detection system and electronic equipment, so as to reduce the false alarm rate of a complex monitoring scene:
in a first aspect of the embodiments of the present invention, a fire detection method is provided, where the method includes:
acquiring a visible light image of a high-temperature target, wherein the high-temperature target is a target with the temperature higher than a preset temperature threshold value in a monitoring scene determined from the monitoring scene according to an infrared light signal acquired from the monitoring scene;
judging whether the high-temperature target meets preset conditions or not according to the visible light image to obtain a judgment result, wherein the preset conditions comprise a fire phenomenon condition and/or an infrared light source condition, the fire phenomenon condition is that the high-temperature target generates a preset fire phenomenon, the infrared light source condition is that the high-temperature target is a preset infrared light source, and the preset infrared light source is an infrared light source capable of emitting infrared light when the fire does not occur;
and determining whether the high-temperature target is in a fire condition according to the judgment result.
In one possible embodiment, the predetermined condition comprises the fire condition, and the fire condition comprises the presence of smoke within a predetermined range of the high temperature target;
determining whether the high-temperature target is in a fire according to the judgment result, wherein the determining comprises the following steps:
and if the smoke exists in the preset range of the high-temperature target according to the visible light image, determining that the fire condition occurs in the high-temperature target.
In a possible embodiment, the preset condition includes the infrared light source condition, and the infrared light source condition includes that the high-temperature target is an infrared light source which emits infrared light by reflecting the infrared light;
determining whether the high-temperature target is in a fire according to the judgment result, wherein the determining comprises the following steps:
and if the high-temperature target is judged to be an infrared light source emitting infrared light in a mode of reflecting the infrared light according to the visible light image, determining that the high-temperature target is not in a fire condition.
In a possible embodiment, the determining whether the high temperature target meets a preset condition according to the visible light image includes:
and judging whether the high-temperature target is an infrared light source which emits infrared light in a mode of reflecting the infrared light or not according to the exposure degree of the high-temperature target in the visible light image.
In a possible embodiment, the preset condition comprises the infrared light source condition comprising a machine in which the high temperature target is a preset type;
determining whether the high-temperature target is in a fire according to the judgment result, wherein the determining comprises the following steps:
and if the high-temperature target is judged to be a preset type of machine according to the visible light image, determining that the high-temperature target is not in a fire condition.
In a second aspect of embodiments of the present invention, there is provided a fire detection apparatus, the apparatus comprising:
the system comprises an image acquisition module, a temperature detection module and a temperature detection module, wherein the image acquisition module is used for acquiring a visible light image of a high-temperature target, and the high-temperature target is a target which is determined from a monitoring scene according to an infrared light signal acquired from the monitoring scene and has a temperature higher than a preset temperature threshold value in the monitoring scene;
the intelligent analysis module is used for judging whether the high-temperature target meets preset conditions or not according to the visible light image to obtain a judgment result, wherein the preset conditions comprise fire phenomenon conditions and/or infrared light source conditions, the fire phenomenon conditions are that the high-temperature target generates a preset fire phenomenon, the infrared light source conditions are that the high-temperature target is a preset infrared light source, and the preset infrared light source is an infrared light source capable of emitting infrared light when the fire does not occur;
and the judging module is used for determining whether the high-temperature target is in a fire condition according to the judging result.
In a third aspect of an embodiment of the present invention, there is provided a fire detection system, including:
the system comprises a data acquisition unit, a linkage unit and an intelligent unit;
the data acquisition unit is used for acquiring monitoring data in a monitoring scene, and the monitoring data at least comprises an infrared light signal;
the linkage unit is used for determining a target with the temperature higher than a preset temperature threshold value in the monitoring scene from the monitoring scene according to the monitoring data acquired by the data acquisition unit and taking the target as a high-temperature target;
the data acquisition unit is also used for acquiring a visible light image of the high-temperature target;
the intelligent unit is used for judging whether the high-temperature target meets preset conditions or not according to the visible light image to obtain a judgment result, wherein the preset conditions comprise a fire phenomenon condition and/or an infrared light source condition, the fire phenomenon condition is that the high-temperature target generates a preset fire phenomenon, the infrared light source condition is that the high-temperature target is a preset infrared light source, and the preset infrared light source is an infrared light source capable of emitting infrared light when no fire occurs; and determining whether the high-temperature target is in a fire according to the judgment result.
In one possible embodiment, the data acquisition unit comprises a thermal imaging camera and a visible light camera which are registered in advance;
the thermal imaging camera is used for shooting a thermal imaging image of the monitoring scene;
the linkage unit follows according to the monitoring data that the data acquisition unit gathered determine in the control scene that the temperature is higher than the target of default temperature threshold value, as the high temperature target, include:
determining a target with the temperature higher than a preset temperature threshold value from the monitoring scene according to a thermal imaging image shot by the thermal imaging camera, and taking the target as a high-temperature target;
the visible light camera is used for shooting a visible light image of the high-temperature target.
In a possible embodiment, the linkage unit is further configured to adjust the thermal imaging camera after determining a target with a temperature higher than a preset temperature threshold from the monitoring scene as a high-temperature target according to the monitoring data acquired by the data acquisition unit, so that the high-temperature target is located in a central area of a field of view of the thermal imaging camera;
the visible light camera shoots the visible light image of the high-temperature target, and comprises:
and after the linkage module adjusts the thermal imaging camera so that the high-temperature target is positioned in the central area of the visual field of the thermal imaging camera, shooting a visible light image of the high-temperature target.
In a possible embodiment, the data acquisition unit further includes a temperature and humidity sensor and a distance measurement component;
the temperature and humidity sensor is used for acquiring temperature and humidity information of the monitoring scene;
the distance measurement component is used for collecting distance information, and the distance information is used for representing the distance from the data collection unit to a target in the monitoring scene;
the linkage unit is according to the thermal imaging image that the thermal imaging camera was shot, follow the target that the temperature is higher than preset temperature threshold is confirmed in the monitoring scene, as high temperature target, includes:
and the linkage unit determines a target with the temperature higher than a preset temperature threshold value from the monitoring scene according to the thermal imaging image shot by the thermal imaging camera, the temperature and humidity information and the distance information, and the target is used as a high-temperature target.
In a possible embodiment, the linkage unit determines, according to the monitoring data acquired by the data acquisition unit, a target with a temperature higher than a preset temperature threshold from the monitoring scene, and as a high-temperature target, includes:
according to the monitoring data acquired by the data acquisition unit, determining a target with the temperature higher than a preset temperature threshold value from the monitoring scene as a high-temperature target
And determining a target with the temperature higher than a preset temperature threshold value from other areas except a shielding area in the monitoring scene as a high-temperature target according to the monitoring data acquired by the data acquisition unit, wherein the shielding area comprises one or more of a preset factory area and a preset chimney area.
In a possible embodiment, the fire detection system further comprises an alarm unit;
and the alarm unit is used for giving an alarm when the intelligent unit determines that the high-temperature target is in a fire situation.
In a fourth aspect of embodiments of the present invention, there is provided an electronic device, including:
a memory for storing a computer program;
a processor adapted to perform the method steps of any of the above first aspects when executing a program stored in the memory.
In a fifth aspect of embodiments of the present invention, there is provided a computer-readable storage medium having stored therein a computer program which, when executed by a processor, performs the method steps of any one of the above-mentioned first aspects.
The embodiment of the invention has the following beneficial effects:
the fire detection method, the device, the system and the electronic equipment provided by the embodiment of the invention can further judge whether the reason causing high temperature is the fire or not according to the information presented in the visible light image on the basis of temperature judgment, thereby effectively reducing the false alarm rate in a complex application scene.
Of course, not all of the advantages described above need to be achieved at the same time in the practice of any one product or method of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a fire detection method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a determination method according to an embodiment of the present invention;
fig. 3a is a schematic structural diagram of a fire detection system according to an embodiment of the present invention;
FIG. 3b is a schematic structural diagram of a fire detection system according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a fire detection device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In order to more clearly describe the fire detection method provided by the embodiment of the present invention, an exemplary application scenario of the fire detection method provided by the embodiment of the present invention will be described below, it should be understood that the following example is only one possible application scenario of the fire detection method provided by the embodiment of the present invention, and in other possible embodiments, the fire detection method provided by the embodiment of the present invention may also be applied to other possible application scenarios, and the following example does not limit the application scenario.
In some areas, some people may destroy the straw by burning it. Burning straw generates a large amount of toxic substances, pollutes air and soil, and may cause a greater fire, so that it is necessary to manage the straw burning behavior. In order to facilitate management of straw burning behaviors, the following method can be used for detecting whether a fire condition caused by straw burning exists in the related art:
the method comprises the steps of utilizing a cruising device provided with a thermal imaging camera, such as an aircraft, to cruise and shoot in a monitoring scene so as to acquire a thermal imaging image of the monitoring scene. When the gray scale in the thermal imaging image is analyzed, since the gray scale of the object with higher temperature in the thermal imaging image is higher, if the object with too high gray scale exists in the thermal imaging image, the object can be considered to have a fire.
However, burning straws often occurs in rural areas, and objects such as houses, agricultural vehicles (seeders, tractors, etc.), factories, etc. may exist in the rural areas, so that objects with too high gray values may exist in thermal imaging images of monitoring scenes when no fire occurs due to light reflection on roofs of houses, heat emitted by engines of agricultural vehicles, heat emitted by heat engines in factories, etc., and thus, the fire may be erroneously determined to occur in the objects. Therefore, the false alarm rate of the method in the rural monitoring scene may be high.
Based on this, an embodiment of the present invention provides a fire detection method, which can be applied to any electronic device with a fire detection function, and the method can be seen in fig. 1, and includes:
s101, acquiring a visible light image of the high-temperature target.
And S102, judging whether the high-temperature target meets a preset condition or not according to the visible light image to obtain a judgment result, wherein the preset condition comprises a fire condition and/or an infrared light source condition.
And S103, determining whether the high-temperature target is in a fire condition according to the judgment result.
By adopting the embodiment, whether the reason causing the high temperature is a fire condition or not can be further judged according to the information presented in the visible light image on the basis of temperature judgment, so that the false alarm rate in a complex application scene is effectively reduced.
In S101, the high-temperature target is a target whose temperature in the monitored scene is higher than a preset temperature threshold value, which is determined from the monitored scene according to the infrared light signal collected from the monitored scene. The target in this context may refer to a target object, such as a stack of grass, a tree, etc., and may also refer to a target location.
It is understood that any object whose temperature exceeds absolute zero will theoretically radiate infrared light, and the higher the temperature of the object is, the higher the energy of the radiated infrared light is, so that a target whose temperature in the monitored scene is higher than the preset temperature threshold can be theoretically determined according to the infrared light signal collected from the monitored scene. The temperature of the target may be obtained by analyzing the thermal imaging image, or may be obtained by measuring the temperature by other non-contact temperature measurement methods, which is not limited in this embodiment. The preset temperature threshold may be set according to an application scenario, for example, the application scenario of detecting burning straws is taken as an example, and the preset temperature threshold may be a burning point of straws.
It is understood that, since some parameters are associated with the temperature, such as the temperature of the target is associated with the gray scale of the thermal imaging image of the target, the manner of determining whether the temperature of the target is higher than the preset temperature threshold may be directly comparing the temperature of the target with the preset temperature threshold, or determining whether the temperature of the target is higher than the preset temperature threshold by other parameters associated with the temperature, such as comparing the gray scale of the thermal imaging image of the target with the preset gray scale threshold to determine whether the temperature of the target is higher than the preset temperature threshold.
In S102, the fire condition is that a preset fire condition occurs in the high temperature target, and the infrared light source condition is that the high temperature target is a preset infrared light source. The predetermined fire phenomenon may refer to a phenomenon caused by a fire, such as generation of smoke, generation of flame, change in refractive index emission of ambient air, and the like.
The preset infrared light source may be an infrared light source preset according to an application scenario, and the preset infrared light source may include an agricultural vehicle, a house roof, and the like, for example, the application scenario of detecting burned straw. The infrared light source herein refers to an object which emits infrared light outwards, and the emitted infrared light may be infrared light radiated by the object or infrared light reflected by the object, and it should be understood that, since all objects above absolute zero may radiate infrared light, the infrared light source which emits infrared light by reflecting infrared light in the following does not refer to the infrared light source which can only emit infrared light by reflecting infrared light, and the infrared light source may also radiate infrared light. In the embodiment of the present invention, the predetermined infrared light source should not include an infrared light source generated by a fire, such as an infrared light source generated by burning straws.
In S103, it can be understood that the preset fire phenomenon is a phenomenon caused by occurrence of a fire, and thus the probability of occurrence of a fire in the high-temperature target that meets the condition of the fire phenomenon is higher than that in the high-temperature target that does not meet the condition of the fire phenomenon.
And, because it can be when not taking place the fire to predetermine infrared light source, consequently if the high temperature target is for predetermineeing infrared light source, then according to the infrared light signal who gathers from the monitoring scene determine that the reason that the high temperature target temperature is higher than the temperature threshold probably not the high temperature target takes place the fire, consequently compare in the high temperature target that does not conform to the infrared light source condition, the probability that the high temperature target that conforms to the fire phenomenon condition takes place the fire is lower.
Therefore, it is possible to determine whether the high temperature target is in the event of a fire according to the determination result. According to different application scenarios, the manner how to determine whether the high-temperature target is in a fire according to the determination result may be different, which is not limited in this embodiment, and hereinafter, different determination manners will be exemplarily described, which is not described herein again.
The preset condition may include a fire condition and not include an infrared light source condition, may not include a fire condition and include an infrared light source condition, and may include a fire condition and include an infrared light source condition. The following will respectively describe the three cases in combination with the application scenario of the burnt straw detection:
the first condition is as follows: the preset conditions include fire conditions and do not include infrared light source conditions:
for convenience of description, it is assumed that smoke exists within a preset range of fire condition conditions including a high temperature target.
The visible light image may be input to a smoke detection model trained in advance to obtain a result output by the smoke detection model, where the result is used to indicate whether smoke exists in the preset range of the high-temperature target, and if the result indicates that smoke exists in the preset range of the high-temperature target, the high-temperature target may be considered to meet the fire condition. The model may be obtained based on deep learning or based on conventional machine learning, which is not limited in this embodiment.
It can be understood that because the straw often contains more moisture, therefore the straw will produce comparatively obvious smog in the burning process, and the high temperature target that other reasons except for the condition of a fire lead to often can not produce smog, for example the internal-combustion engine in the agricultural machinery vehicle, the temperature is higher but can not produce comparatively obvious smog in the course of the work, consequently can think if there is smog in the preset range of high temperature target, then the high temperature target is for burning the straw and leading to, if there is not smog in the preset range of high temperature target, then the high temperature target is not that the straw of burning leads to. Therefore, in this embodiment, if it is determined that smoke exists in the preset range of the high-temperature target according to the visible light image, it may be determined that a fire occurs in the high-temperature target, and if it is determined that smoke does not exist in the preset range of the high-temperature target according to the visible light image, it may be determined that a fire does not occur in the high-temperature target.
The fire conditions including other conditions, such as the condition that a high temperature target is preset to generate flame, are the same in principle and can be obtained by analogy, and the description is omitted here.
Case two: the preset conditions include conditions that do not include a fire condition and include infrared light source conditions:
the infrared light source condition may include that the high temperature target is an infrared light source that emits infrared light by reflecting the infrared light, and may also include that the high temperature target is a preset type of machine. Wherein the preset type of machine may comprise the aforementioned agricultural vehicle.
If the infrared light source condition includes that the high-temperature target is an infrared light source which emits infrared light in a mode of reflecting the infrared light, due to the fact that smoke is generated when the straw is burnt, and the smoke has a certain blocking effect on light, if the high-temperature target is caused by the burnt straw, the light emitted by the high-temperature target is blocked by the smoke, only less light can be collected by image collecting equipment which shoots a visible light image, and therefore the exposure degree of the high-temperature target in the visible light image is theoretically lower. If the high-temperature target is an infrared light source which emits infrared light by reflecting the infrared light, such as a house roof, the infrared light source should theoretically generate a certain reflection effect on visible light at the same time, and because the high-temperature target is not blocked by smoke, more light in the light emitted by the high-temperature target can be collected by image collection equipment which shoots a visible light image, so that the exposure degree of the high-temperature target in the visible light image is theoretically higher. In one possible embodiment, therefore, it can be determined whether the high-temperature target is an infrared light source that emits infrared light by reflecting infrared light according to the exposure degree of the high-temperature target in the visible light image.
For example, the visible light image may be input to a reflection detection model trained in advance, and a result output by the reflection detection model is obtained, where the result is used to indicate whether the high-temperature target is an infrared light source that emits infrared light by reflecting infrared light. The reflection detection model is a model for determining whether a high-temperature target is an infrared light source that emits infrared light by reflecting infrared light according to the exposure degree of the high-temperature target in a visible light image. The model may be obtained based on deep learning or based on conventional machine learning, which is not limited in this embodiment.
It is understood that the infrared light source is an object that emits infrared light, and therefore even if a fire does not occur in the infrared light source, the energy of the infrared light emitted by the infrared light source is relatively high, resulting in being determined as a high-temperature target, for example, a roof of a house may be a high-temperature target due to sunlight irradiation, and therefore in this embodiment, it may be considered that if the high-temperature target is determined as an infrared light source that emits infrared light by reflecting infrared light from a visible light image, it is determined that a fire does not occur in the high-temperature target.
If the infrared light source condition includes that the high-temperature target is a machine with the high-temperature target being a preset type, image recognition can be performed on the visible light image to determine whether the high-temperature target is the preset type of machine, and illustratively, the visible light image can be input into an agricultural vehicle detection model which is trained in advance to obtain a result output by the agricultural vehicle detection model, and the result is used for indicating whether the high-temperature target is an agricultural vehicle. The agricultural vehicle detection model is a model for identifying agricultural vehicles. The model may be obtained based on deep learning or based on conventional machine learning, which is not limited in this embodiment.
It is understood that the infrared light source is an object emitting infrared light, and therefore, even if the infrared light source is not in a fire, the energy of the infrared light emitted from the infrared light source is relatively high, resulting in being determined as a high-temperature target, for example, an agricultural vehicle may be a high-temperature target due to combustion of fuel by an internal combustion engine. Therefore, in this embodiment, it can be considered that if it is determined from the visible light image that the high temperature target is a preset type of machine, it can be determined that the high temperature target is not in a fire.
The infrared light source conditions include other conditions, for example, the high-temperature target is a factory chimney, and can be obtained by analogy, and are not described herein again.
Case three: the preset conditions include fire conditions and include infrared light source conditions:
in this case, it may be determined whether the high-temperature target meets the fire condition first and then determined whether the high-temperature target meets the infrared light source condition, it may be determined whether the high-temperature target meets the infrared light source condition first and then determined whether the high-temperature target meets the fire condition, it may be determined whether the high-temperature target meets the infrared light source condition in a parallel or alternate execution manner, and it may be determined whether the high-temperature target meets the fire condition, which is not limited in this embodiment.
For example, if it is already determined whether the high-temperature target is a fire, according to a determination result obtained by determining part of the preset conditions, the remaining preset conditions may not be determined.
For example, it is assumed that in one possible embodiment, if the high temperature target meets the fire condition or does not meet the infrared light source condition, it may be determined that the high temperature target is in a fire, and if the high temperature target does not meet the fire condition and meets the infrared light source condition, it may be determined that the high temperature target is not in a fire. In this embodiment, a possible determination process may refer to fig. 2, and fig. 2 is a schematic flow chart of a determination method provided by an embodiment of the present invention, which may include:
s201, judging whether smoke exists in the preset range of the high-temperature target, if yes, executing S202, and if yes, executing S204.
The determination method can be referred to the related description, and is not described herein again.
S202, judging whether the high-temperature target is an infrared light source emitting infrared light in a mode of reflecting infrared light, if so, executing S204, and if not, executing S203.
The determination method can be referred to the related description, and is not described herein again.
S203, judging whether the high-temperature target is a preset type machine.
And S204, generating a judgment result.
If smoke exists in the preset range of the high-temperature target in the step S201, the high-temperature target can be determined to be in a fire state at this time, so that the judgment of the step S202 and the step S203 is not needed, a judgment result for indicating that a service exists in the preset range of the high-temperature target can be generated, and the fire state of the high-temperature target can be determined according to the judgment result.
Similarly, if there is no smoke in the preset range of the high temperature target in S201, and the high temperature target is an infrared light source that emits infrared light by reflecting infrared light in S202, it may already be determined that there is no fire in the high temperature target, so that it is not necessary to perform the determination in S202 and S203, and a determination result indicating that there is no smoke in the preset range of the high temperature target and the high temperature target is an infrared light source that emits infrared light by reflecting infrared light may be generated, and it may be determined that there is no fire in the high temperature target according to the determination result.
If there is no smoke within the preset range of the high temperature target in S201, the high temperature target is not an infrared light source that emits infrared light by reflecting infrared light in S202, and the high temperature target is a preset type of machine in S203, a determination result indicating that there is no smoke within the preset range of the high temperature target, the high temperature target is not an infrared light source that emits infrared light by reflecting infrared light, and the high temperature target is a preset type of machine may be generated. According to the judgment result, the high-temperature target can be determined not to be in fire.
If there is no smoke within the preset range of the high temperature target in S201, the high temperature target is not an infrared light source that emits infrared light by reflecting infrared light in S202, and the high temperature target is not a preset type of machine in S203, a determination result indicating that there is no smoke within the preset range of the high temperature target, the high temperature target is not an infrared light source that emits infrared light by reflecting infrared light, and the high temperature target is not a preset type of machine may be generated. According to the judgment result, the fire condition of the high-temperature target can be determined.
Referring to fig. 3a, fig. 3a is a schematic structural diagram of a fire detection system according to an embodiment of the present invention, which may include:
The data collecting unit 310 is configured to collect monitoring data in a monitoring scene. And the linkage unit 320 is configured to determine, from the monitored scene, a target with a temperature higher than a preset temperature threshold in the monitored scene according to the collected monitoring data, and use the target as a high-temperature target, where the monitoring data at least includes an infrared light signal.
The data acquisition unit 310 is further configured to acquire a visible light image of the high-temperature target, and the intelligent unit 330 is configured to determine whether the high-temperature target meets a preset condition according to the visible light image acquired by the data acquisition unit 310, and obtain a determination result, where the preset condition includes a fire condition and/or an infrared light source condition, where the fire condition is that the high-temperature target generates a preset fire condition, the infrared light source condition is that the high-temperature target is a preset infrared light source, and the preset infrared light source is an infrared light source capable of emitting infrared light when no fire condition occurs; and determining whether the high-temperature target is in a fire according to the judgment result.
The data acquisition unit 310, the linkage unit 320, and the intelligent unit 330 may be two devices independent from each other between any two units, or may be two components on the same device, for example, in one possible embodiment, the data acquisition unit 310 may be an aircraft, the linkage unit 320 may be a control server of the aircraft, and the intelligent unit 330 may be a back-end processing server of the aircraft. In another possible embodiment, the data acquisition unit 310, the linkage unit 320, and the intelligence unit 330 may be integrated on the same aircraft. In yet another possible embodiment, the data collection unit 310 and the linkage unit 320 may be integrated on the same aircraft, and the intelligent unit 330 is a back-end processing server of the aircraft. Any unit in the embodiments of the present invention may refer to one or more devices, and may also refer to one or more components.
For the steps performed by the intelligent unit 330, reference may be made to any one of the fire detection methods described above, and details thereof are not repeated herein. The data acquisition unit 310 and the linkage unit 320 will be described separately below.
The data collecting unit 310 may include a thermal imaging camera and a visible light camera which are registered in advance, wherein the thermal imaging camera refers to a camera capable of capturing a thermal imaging image, the visible light camera refers to a camera capable of capturing a visible light image, the thermal imaging camera and the visible light camera may be different cameras or the same camera, for example, the thermal imaging camera and the visible light camera may be the same binocular camera.
And the thermal imaging camera is used for shooting a thermal imaging image of the monitored scene. The linkage unit 320 is configured to determine, from the monitored scene, a target having a temperature higher than a preset temperature threshold as a high-temperature target according to a thermal imaging image captured by the data thermal imaging camera. The visible camera is used for shooting a visible light image of a high-temperature target.
For example, the gray value of each pixel point in the thermal imaging image may be determined, and if the gray value of at least one pixel point is greater than the preset gray threshold, the target to which the pixel point with the gray value greater than the preset gray threshold belongs is taken as the high-temperature target.
In another possible embodiment, the data collecting unit 310 may further include a temperature and humidity sensor and a distance measuring component.
The temperature and humidity sensor is used for acquiring temperature and humidity information of a monitoring scene, and the ranging assembly is used for acquiring distance information, wherein the distance information is used for representing the distance between the data acquisition unit and a target in the monitoring scene.
The distance measurement assembly can be different according to different application scenes, exemplarily, the data acquisition unit is arranged on the aircraft as an example, the distance measurement assembly can be a pitch angle sensor and is used for measuring a pitch angle of the thermal imaging camera relative to the aircraft when the thermal imaging camera shoots a thermal imaging image, and the distance between the data acquisition unit and a target in a monitoring scene can be calculated according to the pitch angle and the height of the aircraft.
The linkage unit 320 may determine the target with the temperature higher than the preset temperature threshold from the monitored scene according to the thermal imaging image, the temperature and humidity information, and the distance information captured by the thermal imaging camera.
For example, the gray level threshold may be calculated according to the temperature and humidity information and the distance information (if the data acquisition unit is disposed in the aircraft, the temperature and humidity information, the distance information, and the cruise sensitivity information of the aircraft may also be used), the gray level value of each pixel point in the thermal imaging image is determined, and if the gray level value of at least one pixel point is greater than the gray level threshold, the target to which the pixel point with the gray level value greater than the preset gray level threshold belongs is used as the high temperature target.
The linkage unit 320 may control the data acquisition unit 310, and for example, the linkage unit 320 may adjust the data after determining the high temperature target from the monitoring scene
Taking the data acquisition unit 310 as an example, the linkage unit 320 may control the motion of the aircraft, for example, assuming that the linkage unit 320 determines the high-temperature target according to the data acquisition unit 310, the linkage unit 320 may control the aircraft to fly right above the high-temperature target, and after the aircraft is stabilized right above the high-temperature target, the data acquisition unit 310 may be controlled to shoot the visible light image of the high-temperature target.
It will be appreciated that there may be regions in the monitoring scenario where combustion may occur even in the absence of a fire. Such as the possibility of coal combustion in the plant and the possibility of firewood combustion in the chimney, these non-fire combustion phenomena may be falsely detected as fire, resulting in an increased false alarm rate. Therefore, in one possible embodiment, the linkage unit 320 may determine, according to the monitoring data, a target having a temperature higher than the preset temperature threshold from other regions in the monitored scene, except the shielding region, as the high temperature target. Wherein the shielded area comprises one or more of a predetermined factory area, a predetermined chimney area. The preset shielding area may be preset or predetermined according to the map information. By adopting the embodiment, the false alarm rate can be further effectively reduced.
Referring to fig. 3b, fig. 3b is a schematic structural diagram of another fire detection system provided in an embodiment of the present invention, which may include:
For the data acquisition unit 310, the linkage unit 320, and the intelligent unit 330, reference may be made to the related description, and details are not repeated here. The alarm unit 340 is configured to alarm when the intelligent unit 330 determines that a fire occurs in the high-temperature target.
The manner of alarming may be different according to different application scenarios, and for example, the alarming may be in a manner of sending an alarm sound, or may be in a manner of sending alarm information, where the sent alarm information may be sent to a preset alarm center, or may be sent to a preset user terminal, which is not limited in this embodiment.
The alarm information may include one or more of the following three types of information:
information one: thermal imaging image screenshots and visible light image screenshots containing high temperature targets.
And information II: position information of the high temperature target.
And (3) information three: temperature information of the high temperature target.
Contain information one in the alarm information and can be convenient for relevant personnel to confirm the condition of a fire and keep as the evidence, contain information two in the alarm information and can be convenient for relevant personnel to fix a position the condition of a fire and take place unknown, contain information in the alarm information and can be convenient for relevant personnel to master the condition of a fire to take suitable counter-measure.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a fire detection apparatus according to an embodiment of the present invention, and the fire detection apparatus may include:
the image acquisition module 401 is configured to acquire a visible light image of a high-temperature target, where the high-temperature target is a target whose temperature in a monitored scene is determined to be higher than a preset temperature threshold from the monitored scene according to an infrared light signal acquired from the monitored scene;
an intelligent analysis module 402, configured to determine whether the high-temperature target meets a preset condition according to the visible light image, so as to obtain a determination result, where the preset condition includes a fire phenomenon condition and/or an infrared light source condition, where the fire phenomenon condition is that a preset fire phenomenon occurs in the high-temperature target, the infrared light source condition is that the high-temperature target is a preset infrared light source, and the preset infrared light source is an infrared light source capable of emitting infrared light when no fire occurs;
and a judging module 403, configured to determine whether the high-temperature target is in a fire according to the judgment result.
In one possible embodiment, the predetermined condition comprises the fire condition, and the fire condition comprises the presence of smoke within a predetermined range of the high temperature target;
the determining module 403 determines whether the high-temperature target is a fire according to the determination result, including:
and if the smoke exists in the preset range of the high-temperature target according to the visible light image, determining that the fire condition occurs in the high-temperature target.
In a possible embodiment, the preset condition includes the infrared light source condition, and the infrared light source condition includes that the high-temperature target is an infrared light source which emits infrared light by reflecting the infrared light;
the determining module 403 determines whether the high-temperature target is a fire according to the determination result, including:
and if the high-temperature target is judged to be an infrared light source emitting infrared light in a mode of reflecting the infrared light according to the visible light image, determining that the high-temperature target is not in a fire condition.
In a possible embodiment, the intelligent analysis module 402 determines whether the high temperature target meets a preset condition according to the visible light image, including:
and judging whether the high-temperature target is an infrared light source which emits infrared light in a mode of reflecting the infrared light or not according to the exposure degree of the high-temperature target in the visible light image.
In a possible embodiment, the preset condition comprises the infrared light source condition comprising a machine in which the high temperature target is a preset type;
the determining module 403 determines whether the high-temperature target is a fire according to the determination result, including:
and if the high-temperature target is judged to be a preset type of machine according to the visible light image, determining that the high-temperature target is not in a fire condition.
An embodiment of the present invention further provides an electronic device, as shown in fig. 5, including:
a memory 501 for storing a computer program;
the processor 502 is configured to implement the following steps when executing the program stored in the memory 501:
acquiring a visible light image of a high-temperature target, wherein the high-temperature target is a target of which the temperature in a monitoring scene is higher than a preset temperature threshold value and is determined from the monitoring scene according to an infrared light signal acquired from the monitoring scene;
judging whether the high-temperature target meets preset conditions or not according to the visible light image to obtain a judgment result, wherein the preset conditions comprise a fire phenomenon condition and/or an infrared light source condition, the fire phenomenon condition is that the high-temperature target generates a preset fire phenomenon, the infrared light source condition is that the high-temperature target is a preset infrared light source, and the preset infrared light source is an infrared light source capable of emitting infrared light when the fire does not occur;
and determining whether the high-temperature target is in a fire condition according to the judgment result.
In one possible embodiment, the predetermined condition comprises the fire condition, and the fire condition comprises the presence of smoke within a predetermined range of the high temperature target;
determining whether the high-temperature target is in a fire according to the judgment result, wherein the determining comprises the following steps:
and if the smoke exists in the preset range of the high-temperature target according to the visible light image, determining that the fire condition occurs in the high-temperature target.
In a possible embodiment, the preset condition includes the infrared light source condition, and the infrared light source condition includes that the high-temperature target is an infrared light source emitting infrared light by reflecting the infrared light;
the determining whether the high-temperature target is in a fire according to the judgment result comprises the following steps:
and if the high-temperature target is judged to be an infrared light source emitting infrared light in a mode of reflecting the infrared light according to the visible light image, determining that the high-temperature target is not in a fire condition.
In a possible embodiment, the determining whether the high temperature target meets a preset condition according to the visible light image includes:
and judging whether the high-temperature target is an infrared light source which emits infrared light in a mode of reflecting the infrared light or not according to the exposure degree of the high-temperature target in the visible light image.
In a possible embodiment, the preset condition comprises the infrared light source condition comprising a machine in which the high temperature target is a preset type;
the determining whether the high-temperature target is in a fire according to the judgment result comprises the following steps:
and if the high-temperature target is judged to be a preset type of machine according to the visible light image, determining that the high-temperature target is not in a fire condition.
The Processor mentioned in the above electronic device may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; but also Digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components.
In yet another embodiment of the present invention, a computer-readable storage medium is further provided, in which a computer program is stored, and the computer program, when executed by a processor, implements the steps of any of the above-mentioned fire detection methods.
In yet another embodiment, a computer program product containing instructions is provided, which when run on a computer, causes the computer to perform any of the fire detection methods of the above embodiments.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for embodiments of the apparatus, the system, the electronic device, the computer-readable storage medium, and the computer program product, which are substantially similar to the method embodiments, the description is relatively simple, and relevant points can be referred to partial description of the method embodiments.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (12)
1. A fire detection method, the method comprising:
acquiring a visible light image of a high-temperature target, wherein the high-temperature target is a target with the temperature higher than a preset temperature threshold value in a monitoring scene and is determined according to an infrared light signal acquired from the monitoring scene;
judging whether the high-temperature target meets preset conditions or not according to the visible light image to obtain a judgment result, wherein the preset conditions comprise an infrared light source condition or a fire phenomenon condition and the infrared light source condition, the fire phenomenon condition is that the high-temperature target generates a preset fire phenomenon, the infrared light source condition is that the high-temperature target is a preset infrared light source, the preset infrared light source is an infrared light source capable of emitting infrared light when the fire does not occur, the infrared light source condition comprises that the high-temperature target is an infrared light source emitting infrared light in a manner of reflecting infrared light, and whether the high-temperature target is an infrared light source emitting infrared light in a manner of reflecting infrared light is judged according to the exposure degree of the high-temperature target in the visible light image;
determining whether the high-temperature target is in a fire condition according to the judgment result;
determining whether the high-temperature target is in a fire according to the judgment result, wherein the determining comprises the following steps:
and if the high-temperature target is judged to be an infrared light source emitting infrared light in a mode of reflecting the infrared light according to the visible light image, determining that the high-temperature target is not in a fire condition.
2. The method of claim 1, wherein the predetermined condition comprises the fire condition comprising the presence of smoke within a predetermined range of the high temperature target;
determining whether the high-temperature target is in a fire according to the judgment result, wherein the determining comprises the following steps:
and if the smoke exists in the preset range of the high-temperature target according to the visible light image, determining that the fire condition occurs in the high-temperature target.
3. The method of claim 1, wherein the preset conditions include the infrared light source conditions including the high temperature target being a preset type of machine;
determining whether the high-temperature target is in a fire according to the judgment result, wherein the determining comprises the following steps:
and if the high-temperature target is judged to be a preset type of machine according to the visible light image, determining that the high-temperature target is not in a fire condition.
4. A fire detection device, the device comprising:
the system comprises an image acquisition module, a temperature detection module and a temperature detection module, wherein the image acquisition module is used for acquiring a visible light image of a high-temperature target, and the high-temperature target is a target with the temperature higher than a preset temperature threshold value in a monitoring scene determined from the monitoring scene according to an infrared light signal acquired from the monitoring scene;
the intelligent analysis module is used for judging whether the high-temperature target meets preset conditions according to the visible light image to obtain a judgment result, wherein the preset conditions comprise an infrared light source condition or a fire condition and the infrared light source condition, the fire condition is that the high-temperature target generates a preset fire condition, the infrared light source condition is that the high-temperature target is a preset infrared light source, the preset infrared light source is an infrared light source capable of emitting infrared light when the fire condition does not occur, the infrared light source condition comprises that the high-temperature target is an infrared light source emitting infrared light in a mode of reflecting the infrared light, and whether the high-temperature target is an infrared light source emitting the infrared light in a mode of reflecting the infrared light is judged according to the exposure degree of the high-temperature target in the visible light image;
the judging module is used for determining whether the high-temperature target is in a fire condition according to the judging result;
the judging module is specifically configured to determine that the high-temperature target is not in a fire condition if the high-temperature target is judged to be an infrared light source emitting infrared light in a manner of reflecting the infrared light according to the visible light image.
5. A fire detection system, the system comprising:
the system comprises a data acquisition unit, a linkage unit and an intelligent unit;
the data acquisition unit is used for acquiring monitoring data in a monitoring scene, and the monitoring data at least comprises an infrared light signal;
the linkage unit is used for determining a target with the temperature higher than a preset temperature threshold value in the monitoring scene from the monitoring scene according to the monitoring data acquired by the data acquisition unit and taking the target as a high-temperature target;
the data acquisition unit is also used for acquiring a visible light image of the high-temperature target;
the intelligent unit is used for judging whether the high-temperature target meets preset conditions according to the visible light image to obtain a judgment result, wherein the preset conditions comprise an infrared light source condition or a fire condition and the infrared light source condition, the fire condition is that the high-temperature target generates a preset fire condition, the infrared light source condition is that the high-temperature target is a preset infrared light source, the preset infrared light source is an infrared light source capable of emitting infrared light when the fire condition does not occur, the infrared light source condition comprises that the high-temperature target is an infrared light source emitting infrared light in a mode of reflecting the infrared light, and whether the high-temperature target is an infrared light source emitting the infrared light in a mode of reflecting the infrared light is judged according to the exposure degree of the high-temperature target in the visible light image; determining whether the high-temperature target is in a fire according to the judgment result; determining whether the high-temperature target is in a fire according to the judgment result, wherein the determining comprises the following steps: and if the high-temperature target is judged to be an infrared light source emitting infrared light in a mode of reflecting the infrared light according to the visible light image, determining that the high-temperature target is not in a fire condition.
6. The system of claim 5, wherein the data acquisition unit comprises a pre-registered thermal imaging camera and a visible light camera;
the thermal imaging camera is used for shooting a thermal imaging image of the monitoring scene;
the linkage unit is according to the monitoring data that data acquisition unit gathered follow it is higher than the target of preset temperature threshold value to determine the temperature in the control scene, as the high temperature target, includes:
determining a target with the temperature higher than a preset temperature threshold value from the monitoring scene according to a thermal imaging image shot by the thermal imaging camera, and taking the target as a high-temperature target;
the visible light camera is used for shooting a visible light image of the high-temperature target.
7. The system of claim 6, wherein the linkage unit is further configured to adjust the thermal imaging camera after determining a target with a temperature higher than a preset temperature threshold from the monitoring scene as a high-temperature target according to the monitoring data collected by the data collection unit, so that the high-temperature target is located in a central area of a field of view of the thermal imaging camera;
the visible light camera shoots the visible light image of the high-temperature target, and comprises:
and after the linkage unit adjusts the thermal imaging camera so that the high-temperature target is positioned in the central area of the visual field of the thermal imaging camera, shooting a visible light image of the high-temperature target.
8. The system of claim 6, wherein the data acquisition unit further comprises a temperature and humidity sensor, a distance measurement assembly;
the temperature and humidity sensor is used for collecting temperature and humidity information of the monitoring scene;
the distance measurement component is used for collecting distance information, and the distance information is used for representing the distance from the data collection unit to a target in the monitoring scene;
the linkage unit is according to the thermal imaging image that the thermal imaging camera was shot, follow the target that the temperature is higher than preset temperature threshold is confirmed in the monitoring scene, as high temperature target, includes:
and the linkage unit determines a target with the temperature higher than a preset temperature threshold value from the monitoring scene according to the thermal imaging image shot by the thermal imaging camera, the temperature and humidity information and the distance information, and the target is used as a high-temperature target.
9. The system according to claim 5, wherein the linkage unit determines, according to the monitoring data acquired by the data acquisition unit, a target with a temperature higher than a preset temperature threshold from the monitoring scene as a high-temperature target, and includes:
and determining a target with the temperature higher than a preset temperature threshold value from other areas except a shielding area in the monitoring scene as a high-temperature target according to the monitoring data acquired by the data acquisition unit, wherein the shielding area comprises one or more of a preset factory area and a preset chimney area.
10. The system of claim 5, wherein the fire detection system further comprises an alarm unit;
and the alarm unit is used for giving an alarm when the intelligent unit determines that the high-temperature target is in a fire situation.
11. An electronic device, comprising:
a memory for storing a computer program;
a processor for implementing the method steps of any of claims 1 to 3 when executing a program stored in the memory.
12. A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium, which computer program, when being executed by a processor, carries out the method steps of any one of the claims 1-3.
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| CN202011399396.3A CN112614302B (en) | 2020-12-03 | 2020-12-03 | Fire detection method, device and system and electronic equipment |
| PCT/CN2021/135096 WO2022117041A1 (en) | 2020-12-03 | 2021-12-02 | Fire detection method, apparatus, system, and electronic device |
| EP21900067.6A EP4258234A1 (en) | 2020-12-03 | 2021-12-02 | Fire detection method, apparatus, system, and electronic device |
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| CN202011399396.3A CN112614302B (en) | 2020-12-03 | 2020-12-03 | Fire detection method, device and system and electronic equipment |
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| CN112614302B (en) * | 2020-12-03 | 2022-10-04 | 杭州海康微影传感科技有限公司 | Fire detection method, device and system and electronic equipment |
| CN113240880A (en) * | 2021-05-27 | 2021-08-10 | 浙江大华技术股份有限公司 | Fire detection method and device, electronic equipment and storage medium |
| CN113536918B (en) * | 2021-06-10 | 2024-04-16 | 浙江华感科技有限公司 | Firework detection method, system, electronic device and storage medium |
| CN113671886B (en) * | 2021-08-25 | 2022-06-03 | 江苏霆善科技有限公司 | Fire safety monitoring method and system based on 5G |
| CN114002751B (en) * | 2021-10-26 | 2023-11-03 | 国网北京市电力公司 | Abnormal position identification method, system and device |
| CN114419076B (en) * | 2022-03-28 | 2022-08-05 | 杭州微影软件有限公司 | Data processing method and device |
| CN116153007B (en) * | 2022-12-29 | 2023-09-26 | 浙江佳伯尔电子科技有限公司 | Alarm control system and method based on sensor |
| CN116994418B (en) * | 2023-09-27 | 2023-12-26 | 广东力创信息技术有限公司 | Pipeline safety early warning method and system |
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| WO2022117041A1 (en) | 2022-06-09 |
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