Fireproof monitoring control method and system, fresh air conditioner and storage medium

Abstract

The invention discloses a fireproof monitoring control method and system, a fresh air conditioner and a storage medium. The fireproof monitoring control method comprises the following steps: monitoring the temperature of each indoor object, and shooting an indoor environment image; when the monitoring temperature of an object is higher than the threshold temperature, the object is a heat source, and the area and position information of the heat source is obtained according to the indoor environment image; judging whether the heat source is an abnormal fire source according to the area of the heat source; when the heat source is an abnormal fire source, carrying out distance measurement on the abnormal fire source to obtain distance information; calculating the spatial position of the abnormal fire source according to the position information and the distance information of the abnormal fire source; calculating the angle and water outlet speed of a water gun according to the abnormal fire source spatial position, adjusting the angle of the water gun and the rotating speed of a water pump, and extinguishing fire; the fire is accurately extinguished through the water gun, so that the fire extinguishing area is greatly reduced, and the safety of electric appliances of users is furthest guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, and in particular to a fire monitoring control method, a control system, a fresh air air conditioner and a storage medium. Background Art

[0002] Indoor spaces like kitchens are prone to fires due to multiple hazards, including gas and electrical appliances. When a fire breaks out, traditional fire suppression systems indiscriminately release water over a wide area, soaking most areas and potentially causing short circuits in live electrical equipment, resulting in property damage. Summary of the Invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides a fire monitoring control method, a control system, a fresh air air conditioner and a storage medium.

[0004] The present invention adopts the following technical solutions:

[0005] A first aspect of the present application provides a fire prevention monitoring and control method, comprising:

[0006] Monitor the temperature of various objects in the room and take pictures of the indoor environment;

[0007] When the monitored temperature of an object is greater than the threshold temperature, the object is considered a heat source, and the area and location information of the heat source are obtained based on the indoor environment image;

[0008] Determine whether the heat source is an abnormal fire source based on the area of ​​the heat source;

[0009] When the heat source is an abnormal fire source, the abnormal fire source is measured to obtain distance information;

[0010] Calculate the spatial location of the abnormal fire source based on the location information and distance information of the abnormal fire source;

[0011] After calculating the angle and water discharge speed of the water gun according to the spatial location of the abnormal fire source, adjust the water gun angle and water pump speed to extinguish the fire.

[0012] According to the fire prevention monitoring and control method, judging whether a heat source is an abnormal fire source based on the area information of the heat source specifically includes:

[0013] When the area ratio of the heat source in two adjacent indoor environment images is greater than the ratio threshold for K consecutive times, the heat source is an abnormal fire source, otherwise it is an ordinary heat source, where K is the cumulative threshold.

[0014] According to the fire prevention monitoring and control method, the calculation of the angle and water discharge speed of the water gun according to the spatial position of the abnormal fire source specifically includes:

[0015] Based on the horizontal pixel distance x1 and vertical pixel distance y1 between the center point of the abnormal fire source and the center point of the image, the horizontal angle β of the abnormal fire source to the central axis of the camera device is calculated. The horizontal angle β is used as the horizontal angle of the water gun;

[0016] According to the v-θ relationship Calculate the water discharge speed and the water gun water discharge pitch angle as follows:

[0017] Select an angle φ, add △θ as θ on the basis of φ, and substitute it into the v-θ relationship to calculate the water outlet speed v. If the calculated water outlet speed v exceeds the maximum speed corresponding to the water pump, then add △θ as θ.

[0018] Substitute θ into the v-θ relationship and calculate the water outlet speed v again until the water outlet speed v is within the allowable speed range of the water pump; or,

[0019] Substituting θ = (arctan (s / h)) / 2 into the v-θ relationship, calculate the minimum water outlet velocity to reduce splashing;

[0020] Where s is the horizontal distance between the water gun and the abnormal fire source, h is the vertical distance between the water gun and the abnormal fire source, v is the water discharge velocity, and θ is the water discharge pitch angle of the water gun.

[0021] According to the fire prevention monitoring and control method, the method further includes: obtaining image information of all objects in the room and position information of non-heat source objects based on the indoor environment image;

[0022] Objects are classified according to labels based on image information, location information and monitored temperature, and the classification results are stored.

[0023] According to the fire prevention monitoring and control method, adjusting the water pump speed specifically includes:

[0024] The water pump speed is continuously adjusted until the water flow rate measured by the flow rate measurement module reaches the calculated water outlet speed v.

[0025] According to the fire prevention monitoring and control method, when the heat source is determined to be an abnormal fire source, the fire prevention monitoring and control method further includes:

[0026] Based on the classification results and location information, it is determined whether there are charged objects around the abnormal fire source; if there are charged objects, the indoor power supply is cut off through the power management system; otherwise, the indoor power supply is not cut off.

[0027] According to the fire prevention monitoring and control method, when the heat source is determined to be an abnormal fire source, the fire prevention monitoring and control method further includes:

[0028] The fresh air air conditioner turns on the emergency cooling mode, controls the fan to run at the maximum speed, and controls the sweep air to aim in the direction of abnormal fire sources to cool down the room;

[0029] The gas detection system detects the toxic gas content in the indoor air. When the toxic gas content in the indoor air exceeds the gas content threshold, the fresh air exhaust system is turned on to discharge the indoor toxic gas and high-temperature gas to cool the room.

[0030] According to the fire prevention monitoring and control method, after the drainage fire extinguishing system enters the fire extinguishing state, the fire prevention monitoring and control method further includes:

[0031] According to the indoor environment image, the indoor abnormal fire source area information, location information and water gun water discharge line information are obtained;

[0032] Determine whether the fire is extinguished normally based on the abnormal fire source area information;

[0033] If the abnormal fire source area has not been reduced to zero, the water gun angle and water pump speed are corrected based on the abnormal fire source location information and / or water gun water outlet line information;

[0034] If the area of ​​abnormal fire source is reduced to zero, the fire will be extinguished normally and the drainage fire extinguishing system will enter the drainage state.

[0035] The second aspect of the present application provides a control system, including an infrared camera monitoring system, a drainage and fire extinguishing system, an ultrasonic ranging module and a central processing unit; the infrared camera monitoring system is used to obtain the monitoring temperature of each object in the room and take images of the indoor environment; the drainage and fire extinguishing system includes two sets of pipelines, one set of fire-fighting pipelines for extinguishing fires to extinguish abnormal fire sources, and the other set of drainage pipelines for discharging air-conditioning condensate water, and the two sets of pipelines share a water pump; the ultrasonic ranging module is arranged on the water gun of the fire-fighting pipeline to measure the distance to abnormal fire sources and obtain distance information; the central processing unit controls the switching of the drainage and fire extinguishing system status, the adjustment of the water gun angle and the water pump speed according to the information obtained by the infrared camera monitoring system and the ultrasonic ranging module.

[0036] According to the control system, the drainage pipeline includes a condensate receiving pan, a first drain valve, a water pump, a second drain valve and a drain pipe connected in sequence; the fire-fighting pipeline includes a water inlet, a first fire extinguishing valve, a water pump, a second fire extinguishing valve and a water gun connected in sequence; the output end of the water pump is provided with a flow rate measurement module for measuring the water flow rate.

[0037] According to the control system, the control system also includes a power management system; one power supply supplies power to the control system, and the other power supply supplies power to other indoor electrical appliances; a power monitoring and control module is provided between the power supply and other indoor electrical appliances; the power management system controls the power on and off of other indoor electrical appliances through the power monitoring and control module.

[0038] According to the control system, the control system also includes a gas detection system, a fresh air exhaust system and a fan; the gas detection system is used to detect the toxic gas content in the air; the fresh air exhaust system is used to discharge toxic gases and high-temperature gases in the room to cool the room; the fan is used to blow air in the direction of abnormal fire sources to cool the room; the central processing unit controls the opening and closing of the fresh air exhaust system and the fan respectively according to the toxic gas content and the infrared camera monitoring system.

[0039] The third aspect of the present application provides a fresh air air conditioner, including the above-mentioned control system.

[0040] A fourth aspect of the present application provides a storage medium, which includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the above-mentioned fire monitoring control method.

[0041] Compared with the prior art, the beneficial effects of the present invention include at least:

[0042] 1. Improve indoor safety. When danger occurs, the source of danger can be handled and resolved in a timely manner, and the user can be informed. After calculating the water discharge speed and angle of the water gun, the fire can be accurately extinguished through the water gun, thus greatly reducing the fire extinguishing area and maximizing the safety of the user's electrical equipment and other property.

[0043] 3. This application also has a power management system. When it detects that there are useful electrical objects around an abnormal fire source, it can also cut off the indoor power supply, thereby further ensuring the safety of the user's electrical equipment.

[0044] 2. Utilize the original fan and fresh air exhaust system of the air conditioner. The fan can blow air towards abnormal fire sources to cool down. The fresh air exhaust system can not only ventilate but also discharge indoor toxic gases and high-temperature gases to cool down the room and increase safety functions. This allows one air conditioner to solve multiple safety problems and avoid users installing multiple different safety systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present disclosure 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 disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0046] Figure 1 This is a schematic diagram of the control system of this application;

[0047] Figure 2 This is a schematic diagram of the drainage and fire extinguishing system of this application;

[0048] Figure 3 A schematic diagram of the power management system of this application;

[0049] Figure 4 This is a flow chart of the fire monitoring and control method of this application;

[0050] Figure 5 A flow chart of a preferred embodiment of the fire monitoring and control method of the present application;

[0051] Figure 6 This is a positional relationship diagram of the abnormal fire source, camera device and water gun of this application. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0053] Unless specifically stated otherwise, the relative arrangement of components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure.

[0054] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0055] Technologies, methods and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods and equipment should be considered part of the authorization specification.

[0056] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0057] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0058] First embodiment:

[0059] Regarding the technical problem that when a fire occurs, traditional fire extinguishing systems will discharge water indiscriminately over a wide range of 360°, soaking most areas and potentially causing short circuits in live electrical equipment, please refer to Figure 4This embodiment provides a fire prevention monitoring control method, which specifically includes:

[0060] Step S410, monitoring the temperature of each object in the room and capturing an image of the indoor environment;

[0061] Step S420: When the monitored temperature of an object is greater than the threshold temperature, the object is considered a heat source, and the area and location information of the heat source are obtained based on the indoor environment image;

[0062] The threshold temperature may be set according to the usage temperature of indoor objects and the flame temperature.

[0063] For example, the room is a kitchen, and the temperature of a conventional cooking pot in the kitchen is generally lower than 300°C, and the flame temperature is at least 600°C. Therefore, the fire source threshold temperature can be set between 300 and 600°C.

[0064] Based on the indoor environment image, the image information of all objects in the room and the location information of other objects can also be obtained;

[0065] Objects are classified according to labels based on image information, location information and monitored temperature, and the classification results are stored.

[0066] The classification method can be completed using an artificial intelligence method, for example, AlexNet, VGG, GoogLeNet, ResNet, etc.

[0067] The tags include at least: ordinary heat sources, charged objects and abnormal fire sources.

[0068] The central processing unit will execute different strategies based on different tags. For example, because ordinary heat sources may become abnormal fire sources, the central processing unit will control the camera device to focus on tracking and monitoring ordinary heat sources. Spraying water on charged objects, or splashing water on charged objects after spraying, may cause a short circuit. Therefore, when there is an abnormal fire source or a charged object around an abnormal fire source, the central processing unit will cut off the indoor power supply.

[0069] In order to meet other fire extinguishing requirements, additional label types can be added, such as: people, flammable objects, pets, designated items, key inspection items, etc.

[0070] For example, when the user specifies through the AI ​​networked communication system that an object should not be wetted, the water gun will try to avoid the object when discharging water for fire extinguishing. If there are specified objects on the left and right of the abnormal fire source, the angle of the water gun will be slightly corrected in the direction away from the object. If the specified object is behind the abnormal fire source, the water discharge speed will be reduced as much as possible and the water discharge angle will be increased to avoid directly spraying the object behind due to the water discharge speed being too fast. The set fire extinguishing point will also be slightly moved forward, and then through continuous corrections, it will be closer to the abnormal fire source.

[0071] When the user specifies a key inspection item through the AI ​​network communication system, the water gun will continue to aim at the object, enabling rapid fire extinguishing in the first place and preventing the fire from spreading.

[0072] Step S430, judging whether the heat source is an abnormal fire source according to the area of ​​the heat source;

[0073] When the area change ratio of the heat source in two adjacent indoor environment images is greater than the ratio threshold for K consecutive times, the heat source is an abnormal fire source, otherwise it is an ordinary heat source.

[0074] Normal flames are generated by objects that can start fires, such as lighters and gas stoves, and will not spread continuously. Uncontrolled fire sources will continue to spread, and the flame range on the image will expand. However, short-term diffusion such as that caused by stir-frying is not considered continuous diffusion and will not be judged as an abnormal fire source. Therefore, a ratio threshold is set to be exceeded for K consecutive times to prevent misjudgment.

[0075] The specific methods for determining whether it is an abnormal fire source include:

[0076] According to the ratio of the area of ​​the heat source in the indoor environment image taken this time to the area of ​​the heat source in the indoor environment image taken last time, it is judged whether it is greater than the ratio threshold. If the ratio is greater than the ratio threshold, the cumulative value is increased by one, otherwise it is reset to zero;

[0077] Take the indoor environment image again and get the area of ​​the heat source. Compare the areas of two adjacent heat sources. If the ratio is greater than the ratio threshold, the cumulative value is increased by one, otherwise it is reset to zero.

[0078] When the cumulative value is K, the fire source is determined to be an abnormal fire source.

[0079] Among them, K is the cumulative threshold, and the value of K depends on the shooting speed. When the shooting interval is short, the K value should be as large as possible. When the shooting time is long, the K value should be as small as possible.

[0080] For example, when the ratio of the fire source area in the n+1th image to the fire source area in the nth image is greater than the ratio threshold, then N=1; when the ratio of the fire source area in the n+2th image to the fire source area in the n+1th image is greater than the ratio threshold, then N=2; and so on. When N=K, the fire source is determined to be an abnormal fire source;

[0081] When the ratio of the fire source area in a certain image to the fire source area in the previous image is less than or equal to the ratio threshold, or there is no fire source in the room, N=0.

[0082] Step S440: When the heat source is an abnormal fire source, the ultrasonic ranging module measures the distance to the abnormal fire source to obtain distance information, and the water drainage fire extinguishing system enters a fire extinguishing preparation state;

[0083] The drainage fire extinguishing system enters the fire extinguishing preparation state. To prevent water leakage in the pipeline, the first drainage valve is closed, the second fire extinguishing water valve is closed, the second drainage valve is opened, and the first fire extinguishing water valve is opened. At this time, the water outlet is the second drainage valve and the drainage pipe.

[0084] Based on the classification results and location information, it is determined whether there are charged objects around the abnormal fire source; if there are charged objects, the indoor power supply is cut off through the power management system; otherwise, the indoor power supply is not cut off.

[0085] The fresh air air conditioner turns on the emergency cooling mode, controls the fan to run at the maximum speed, and controls the sweep air to aim in the direction of abnormal fire sources to cool down the room;

[0086] The gas detection system detects the toxic gas content in the indoor air. When the toxic gas content in the indoor air exceeds the gas content threshold, the fresh air exhaust system is turned on to discharge the indoor toxic gas and high-temperature gas to cool the room.

[0087] When the fire source is judged to be abnormal, the user can be reminded through the APP and buzzer alarm.

[0088] Step S450, calculating the spatial location of the abnormal fire source based on the location information and distance information of the abnormal fire source;

[0089] The camera device determines direction information, and the ultrasonic ranging module determines distance information, and the two are combined to determine the spatial vector position information of the abnormal fire source.

[0090] In step S460, after calculating the angle and water discharge speed of the water gun according to the spatial position of the abnormal fire source, the angle of the water gun and the speed of the water pump are adjusted, and the water drainage fire extinguishing system enters the fire extinguishing state to extinguish the fire.

[0091] The method for calculating the water discharge speed and angle of the water gun specifically includes:

[0092] Based on the horizontal pixel distance x1 and vertical pixel distance y1 between the center point of the abnormal fire source and the center point of the image, the pitch angle α and horizontal angle β of the abnormal fire source relative to the central axis of the camera device are calculated, and the pitch angle α is defined as positive when it is above the center point and negative when it is below the center point; the horizontal angle β is positive to the right of the center point and negative to the left of the center point;

[0093] Formula 1: Pitch angle α = (vertical pixel number / vertical viewing angle) * x1;

[0094] Formula 2: Horizontal angle β = (horizontal pixel number / horizontal viewing angle) * y1;

[0095] Since the water gun is installed directly below the camera, the horizontal adjustment angle of the water gun is equal to the horizontal angle β;

[0096] Then we need to calculate the pitch angle A of the abnormal fire source in space, starting from the direction of gravity:

[0097] Formula 3: Pitch angle A = camera installation pitch angle + abnormal fire source pitch angle α relative to the camera centerline;

[0098] See also Figure 6 , point A is the position of the camera device, point B is the position of the water gun, point C is the position of the abnormal fire source, a is the distance between BC, b is the distance between AC, c is the distance between BC, h is the vertical distance between the water gun and the abnormal fire source, s is the horizontal distance between the water gun and the abnormal fire source, γ is the vertical angle of the water gun, then according to the trigonometric function relationship and the Pythagorean theorem:

[0099] Formula 4: tanA = s / (c + h);

[0100] Formula 5: h 2 +s 2 =a 2 ;

[0101] The pitch angle A is calculated in Formula 3, a can be obtained by measuring the distance using the ultrasonic ranging module, and c is a fixed value obtained by measuring the product structure.

[0102] The vertical distance of abnormal fire source can be obtained When the pitch angle A is less than 90°, the sign is positive; when the pitch angle A is greater than 90°, the sign is negative. Substituting the result of h into Formula 4, the horizontal distance s of the abnormal fire source can be obtained.

[0103] Special case: when A=90°, h=0, s=a.

[0104] Next, calculate the pitch angle and speed of the water gun, the horizontal and vertical calculation formulas:

[0105] Formula 6: s=vtsinθ;

[0106] Formula 7: h = vtconθ + gt 2 / 2;

[0107] Where v is the water velocity, θ is the water gun water pitch angle, g is the acceleration of gravity (take 9.8m / s 2 Calculation), t is the estimated time for water to flow from the water gun to the abnormal fire source.

[0108] Eliminate t to obtain the v-θ relationship

[0109] Using a common strategy, one can first increase the current water gun vertical angle γ (the value of c in the structural design is relatively small and can be approximated as angle A) by Δθ. Substituting this value into the v-θ equation to calculate v, v is calculated. If v exceeds the maximum speed of the water pump, Δθ is further increased by Δθ and substituted into the v-θ equation to calculate v again. This cycle continues until v is within the pump's allowable speed range. In another embodiment, the pitch angle α can be used as a basis for increasing Δθ, with a value range of ±5°.

[0110] By reducing the water outlet speed and reducing water splashing, θ = (arctan (s / h)) / 2 can be substituted into the v-θ relationship, at which point v is the smallest.

[0111] Then, based on the calculated water outlet speed v and water outlet angle θ, the water pump is started to control the speed until the flow rate measurement module detects that the water outlet speed reaches the required value. At this time, the water outlet is still the second drain valve and drain pipe, ensuring that the water gun does not discharge water before the water outlet speed is reached, avoiding wetting the area on the water outlet path of the water gun due to insufficient water outlet speed, and synchronously adjusting the up and down angles of the water gun.

[0112] Since a wide-angle camera is used, the image distortion should be corrected before calculating the water discharge speed and angle of the water gun.

[0113] Originally, the water gun was used to measure the distance to abnormal fire sources. Since the water discharge needs to consider the parabolic principle and to avoid excessive splashing caused by excessive water discharge speed, the initial water discharge speed will be relatively small, and the water gun angle may need to be readjusted.

[0114] According to the indoor environment image, the indoor abnormal fire source area information, location information and water gun water discharge line information are obtained;

[0115] Determine whether the fire is extinguished normally based on the abnormal fire source area information;

[0116] If the abnormal fire source area has not been reduced to zero, the water gun angle and water pump speed are corrected based on the abnormal fire source location information and / or water gun water outlet line information;

[0117] For example, if you find that the fire source is large and only a part of it has been extinguished, adjust the angle of the water gun to aim at the unextinguished area; if you find that the water cannot reach the location of the abnormal fire source, you can increase the water discharge speed.

[0118] If the area of ​​abnormal fire source is reduced to zero, the fire will be extinguished normally and the drainage fire extinguishing system will enter the drainage state.

[0119] The drainage fire extinguishing system enters the drainage state. In order to ensure that the area on the water outlet path is not wet when the water gun is turned off, the second fire extinguishing water valve is closed, the second drain valve is opened, the first fire extinguishing water valve is closed, and the first drain valve is opened. The water pump is started according to the water level of the condensate receiving tray.

[0120] See also Figure 5 , Figure 5 This is a preferred embodiment of the fire monitoring and control method of the present application.

[0121] Step S510, the infrared detection module monitors whether there is a heat source whose object monitoring temperature is greater than a threshold temperature;

[0122] If it exists, the indoor environment image is obtained through the camera device, and the image information, location information and area information of all objects in the indoor environment image are obtained; the objects are classified according to the labels based on the image information, location information and monitored temperature, and the classification results are stored;

[0123] Otherwise, continue to monitor for the presence of heat sources.

[0124] Step S520, determining whether there is an abnormal fire source;

[0125] If the heat source is an abnormal fire source, the user will be reminded through the AI ​​network communication system and buzzer alarm, and the fresh air air conditioner will start the emergency cooling mode, control the fan to run at the maximum speed, and control the sweep air to aim at the direction of the abnormal fire source for cooling; the toxic gas content in the indoor air will be detected by the gas detection system. When the toxic gas content in the indoor air exceeds the gas content threshold, the fresh air exhaust system will be turned on to discharge the indoor toxic gas and high-temperature gas to cool the room; the drainage fire extinguishing system will enter the fire extinguishing preparation state; according to the location information of the abnormal fire source, the water gun will be controlled to initially aim at the abnormal fire source, and at the same time the ultrasonic ranging module will measure the distance to the abnormal fire source and store the distance information; the water pump will be initially started and wait for the calculation of the water outlet speed;

[0126] Otherwise, jump to step S510.

[0127] Step S530, judging whether there is a charged object around the abnormal fire source based on the classification result and the location information;

[0128] If there are charged objects around the abnormal fire source, the power management system cuts off the power to other electrical appliances in the room to avoid short circuits, and then jumps to step S540;

[0129] Otherwise, jump directly to step S540.

[0130] Step S540, calculating the spatial position of the abnormal fire source based on the position information and distance information of the abnormal fire source, and calculating the water discharge speed and angle of the water gun based on the spatial position of the abnormal fire source;

[0131] Start the water pump and control the speed until the flow rate measurement module detects that the water outlet speed reaches the required value. At this time, water is still flowing out of the second drain valve and the drain pipe. Ensure that the water gun does not discharge water before the water outlet speed is reached to avoid wetting the area on the water outlet path due to insufficient water outlet speed; adjust the up and down angle of the water gun simultaneously;

[0132] Step S550: close the second drain valve, open the second fire extinguishing water valve, and use the water gun to discharge water to extinguish the fire;

[0133] According to the indoor environment image, the indoor abnormal fire source area information, location information and water gun water discharge line information are obtained;

[0134] Determine whether the fire is extinguished normally based on the abnormal fire source area information;

[0135] If the abnormal fire source area has not been reduced to zero, the water gun angle and water pump speed are corrected based on the abnormal fire source location information and / or water gun water outlet line information;

[0136] If the area of ​​the abnormal fire source is reduced to zero, the fire is extinguished normally and the drainage fire extinguishing system enters the drainage state; when the drainage fire extinguishing system enters the drainage state, in order to ensure that the area on the water outlet path is not wet when the water gun is turned off, the second fire extinguishing water valve is closed, the second drain valve is opened, the first fire extinguishing water valve is closed, and the first drain valve is opened. The water pump is started according to the water level of the condensate receiving tray and jumps to step S510.

[0137] Second embodiment:

[0138] Regarding the technical problem that when a fire occurs, traditional fire extinguishing systems will indiscriminately discharge water over a large area, soaking most areas and possibly causing short circuits in live electrical equipment, please refer to Figure 1-3 , this embodiment provides a control system.

[0139] The control system includes: an infrared camera monitoring system, a drainage and fire extinguishing system, a water gun, an ultrasonic ranging module and a central processing unit;

[0140] Infrared camera monitoring system, used to obtain the monitoring temperature of various objects in the room and take images of the indoor environment;

[0141] The drainage fire extinguishing system includes two sets of pipes, one set of fire fighting pipes for extinguishing abnormal fire sources, and the other set of drainage pipes for discharging air conditioning condensate. The two sets of pipes share a water pump.

[0142] The ultrasonic distance measurement module is installed on the water gun of the fire protection pipeline to measure the distance of abnormal fire sources and obtain distance information;

[0143] The central control system controls the switching of the drainage and fire extinguishing system status, the adjustment of the water gun angle and the water pump speed based on the information obtained by the infrared camera monitoring system and the ultrasonic ranging module.

[0144] The infrared camera monitoring system includes an infrared detection module and a camera device, and a water gun is located directly below the camera device.

[0145] See also Figure 3 , the control system also includes a power management system;

[0146] One power supply is used to supply power to the control system, and the other power supply is used to supply power to other electrical appliances in the room.

[0147] A power monitoring and control module is provided between the power supply and other indoor electrical appliances;

[0148] The power management system controls the power on and off of other electrical appliances in the room through the power monitoring control module.

[0149] The power management system can also detect indoor power usage.

[0150] This application can identify the location of the fire source and target it, accurately extinguishing the fire, avoiding the 360° large-scale water discharge of the traditional fire extinguishing system that causes short circuits to electrical equipment, sockets and other charged objects, while also reducing the area wetted by water during fire extinguishing.

[0151] The control system also includes: a gas detection system, a fresh air exhaust system, a fan and an AI network communication system;

[0152] Gas detection system, used to detect toxic gas content in the air;

[0153] Fresh air exhaust system is used to discharge indoor toxic and high-temperature gases to cool the room;

[0154] Fan, used to blow air in the direction of abnormal fire source to reduce the temperature;

[0155] The central control system controls the opening and closing of the fresh air exhaust system and the fan according to the toxic gas content and the infrared camera monitoring system.

[0156] AI networked communication system is used to alarm and remind users when abnormal fire sources occur.

[0157] In addition to replacing fresh air, the fresh air function can also detect indoor gas conditions and be used to discharge leaked gas or thick smoke produced by fire.

[0158] See also Figure 2 , the drainage pipeline includes a condensate receiving pan, a first drain valve, a water pump, a second drain valve and a drain pipe connected in sequence;

[0159] The fire-fighting pipeline includes a water inlet, a first fire-extinguishing valve, a water pump, a second fire-extinguishing valve and a water gun connected in sequence;

[0160] The output end of the water pump is provided with a flow rate measurement module for measuring the water flow rate.

[0161] The air conditioning water pump is multi-purpose. It can be used to drain the air conditioning condensate water and can also be used as a fire extinguishing water pump. It has multiple uses.

[0162] Third embodiment:

[0163] The present invention also provides a fresh air air conditioner, comprising the above control system.

[0164] Fourth embodiment:

[0165] The present invention also provides a storage medium storing a computer program, which, when executed by a processor, implements the fire monitoring and control method disclosed in the present invention.

[0166] Storage medium can be the tangible device that can keep and store the instruction used by instruction execution device.Storage medium can be, for example, but is not limited to electric storage device, magnetic storage device, optical storage device, electromagnetic storage device, semiconductor storage device or above-mentioned any suitable combination.The more specific example (non-exhaustive list) of storage medium comprises: portable computer disk, hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital versatile disk (DVD), memory stick, floppy disk, mechanical coding device, for example, punch card or the convex structure in the groove that stores instruction thereon and above-mentioned any suitable combination.Storage medium used here is not interpreted as instantaneous signal itself, such as radio wave or other free propagating electromagnetic wave, electromagnetic wave (for example, by the light pulse of fiber optic cable) that waveguide or other transmission medium propagates or the electric signal transmitted by wire.

[0167] The computer-readable program instructions described herein can be downloaded from a storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions to the storage medium in each computing / processing device for storage.

[0168] The computer program instructions for performing the operations of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, and conventional procedural programming languages ​​such as "C" language or similar programming languages. Computer-readable program instructions may be executed entirely on a user's computer, partially on a user's computer, as an independent software package, partially on a user's computer, partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., utilizing an Internet service provider to connect via the Internet). In some embodiments, an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), may be personalized by utilizing the state information of the computer-readable program instructions. The electronic circuit may execute the computer-readable program instructions, thereby realizing various aspects of the present disclosure.

[0169] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. A fire prevention monitoring and control method, characterized in that: include: Monitor the temperature of various objects in the room and take pictures of the indoor environment; When the monitored temperature of an object is greater than the threshold temperature, the object is considered a heat source, and the area and location information of the heat source are obtained based on the indoor environment image; Determine whether the heat source is an abnormal fire source based on the area of ​​the heat source; When the heat source is an abnormal fire source, the abnormal fire source is measured to obtain distance information; Calculate the spatial location of the abnormal fire source based on the location information and distance information of the abnormal fire source; After calculating the angle and water discharge speed of the water gun according to the spatial location of the abnormal fire source, adjust the water gun angle and water pump speed to extinguish the fire.

2. The fire prevention monitoring and control method according to claim 1, characterized in that: The method of judging whether the heat source is an abnormal fire source based on the area information of the heat source specifically includes: When the area ratio of the heat source in two adjacent indoor environment images is greater than the ratio threshold for K consecutive times, the heat source is an abnormal fire source, otherwise it is an ordinary heat source, where K is the cumulative threshold.

3. The fire prevention monitoring and control method according to claim 1, characterized in that: Calculating the angle and water discharge speed of the water gun according to the spatial position of the abnormal fire source specifically includes: Based on the horizontal pixel distance x1 and vertical pixel distance y1 between the center point of the abnormal fire source and the center point of the image, the horizontal angle β of the abnormal fire source to the central axis of the camera device is calculated. The horizontal angle β is used as the horizontal angle of the water gun; According to the v-θ relationship Calculate the water discharge speed and the water gun water discharge pitch angle as follows: Select an angle φ, add △θ to φ as θ and substitute it into the v-θ relationship to calculate the water outlet speed v. If the calculated water outlet speed v exceeds the maximum speed corresponding to the water pump, add △θ again and substitute it into the v-θ relationship to calculate the water outlet speed v again until the water outlet speed v is within the speed range allowed by the water pump; or Substituting θ = (arctan (s / h)) / 2 into the v-θ relationship, calculate the minimum water outlet velocity to reduce splashing; Where s is the horizontal distance between the water gun and the abnormal fire source, h is the vertical distance between the water gun and the abnormal fire source, v is the water discharge velocity, and θ is the water discharge pitch angle of the water gun.

4. The fire prevention monitoring and control method according to claim 3, characterized in that: The adjusting of the water pump speed specifically includes: The water pump speed is continuously adjusted until the water flow rate measured by the flow rate measurement module reaches the calculated water outlet speed v.

5. The fire prevention monitoring and control method according to claim 1, characterized in that: Also includes: Obtain image information of all objects in the room and position information of non-heat source objects based on the indoor environment image; Objects are classified according to labels based on image information, location information and monitored temperature, and the classification results are stored.

6. The fire prevention monitoring and control method according to claim 5, characterized in that: When the heat source is determined to be an abnormal fire source, the fire prevention monitoring and control method further includes: Based on the classification results and location information, it is determined whether there are charged objects around the abnormal fire source; if there are charged objects, the indoor power supply is cut off through the power management system; otherwise, the indoor power supply is not cut off.

7. The fire prevention monitoring and control method according to claim 1, characterized in that: When the heat source is determined to be an abnormal fire source, the fire prevention monitoring and control method further includes: The fresh air air conditioner turns on the emergency cooling mode, controls the fan to run at the maximum speed, and controls the sweep air to aim in the direction of abnormal fire sources to cool down the room; The gas detection system detects the toxic gas content in the indoor air. When the toxic gas content in the indoor air exceeds the gas content threshold, the fresh air exhaust system is turned on to discharge the indoor toxic gas and high-temperature gas to cool the room.

8. The fire prevention monitoring and control method according to claim 1, characterized in that: After the drainage fire extinguishing system enters the fire extinguishing state, the fire monitoring and control method further includes: According to the indoor environment image, the indoor abnormal fire source area information, location information and water gun water discharge line information are obtained; Determine whether the fire is extinguished normally based on the abnormal fire source area information: If the abnormal fire source area has not been reduced to zero, the water gun angle and water pump speed are corrected based on the abnormal fire source location information and / or water gun water outlet line information; If the area of ​​abnormal fire source is reduced to zero, the fire will be extinguished normally and the drainage fire extinguishing system will enter the drainage state.

9. A control system for the fire prevention monitoring and control method according to any one of claims 1 to 8, comprising an infrared camera monitoring system, a drainage and fire extinguishing system, an ultrasonic ranging module, and a central processing unit; characterized in that: Infrared camera monitoring system, used to obtain the monitoring temperature of various objects in the room and take images of the indoor environment; The drainage fire extinguishing system includes two sets of pipes, one set of fire fighting pipes for extinguishing abnormal fire sources, and the other set of drainage pipes for discharging air conditioning condensate. The two sets of pipes share a water pump. The ultrasonic distance measurement module is installed on the water gun of the fire protection pipeline to measure the distance of abnormal fire sources and obtain distance information; The central processing unit controls the switching of the drainage and fire extinguishing system status, the adjustment of the water gun angle and the water pump speed based on the information obtained by the infrared camera monitoring system and the ultrasonic ranging module.

10. The control system according to claim 9, characterized in that: The drainage pipeline includes a condensate receiving pan, a first drain valve, a water pump, a second drain valve and a drain pipe connected in sequence; The fire-fighting pipeline includes a water inlet, a first fire-extinguishing valve, a water pump, a second fire-extinguishing valve and a water gun connected in sequence; The output end of the water pump is provided with a flow rate measurement module for measuring the water flow rate.

11. The control system according to claim 9, characterized in that: The control system also includes a power management system; One power supply is used to supply power to the control system, and the other power supply is used to supply power to other electrical appliances in the room. A power monitoring and control module is provided between the power supply and other indoor electrical appliances; The power management system controls the power on and off of other electrical appliances in the room through the power monitoring control module.

12. The control system according to claim 9, characterized in that: The control system also includes a gas detection system, a fresh air exhaust system and a fan; Gas detection system, used to detect toxic gas content in the air; Fresh air exhaust system is used to discharge indoor toxic and high-temperature gases to cool the room; Fan, used to blow air in the direction of abnormal fire source to reduce the temperature; The central processing unit controls the opening and closing of the fresh air exhaust system and the fan according to the toxic gas content and the infrared camera monitoring system.

13. A fresh air air conditioner, characterized by: Comprising a control system as claimed in any one of claims 9 to 12.

14. A storage medium, characterized in that: The storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute a fire monitoring control method according to any one of claims 1 to 8.

Images