Fire warning method, device, air conditioner and storage medium

Abstract

The present invention discloses a fire warning method, device, air conditioner, and storage medium, relating to the technical field of air conditioners. The method comprises: controlling an infrared temperature measurement module to periodically detect the surface temperature of objects within the air conditioner's operating environment to obtain the surface temperature; calculating the temperature change rate based on the surface temperature; and detecting whether the operating environment meets preset fire alarm conditions based on the temperature change rate and the area where the object corresponding to the temperature change rate is located; and sending a fire alarm message to the user if the operating environment meets the preset fire alarm conditions. The present invention can improve the real-time performance and safety of indoor fire warnings.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of air conditioners, and in particular to a fire warning method and device, an air conditioner, and a storage medium. Background Art

[0002] Existing fire warning technology determines whether there is a fire risk indoors by detecting indoor temperature and carbon dioxide concentration. However, when a fire occurs, the indoor temperature and carbon dioxide concentration take a certain amount of time to rise. Only when they reach or even exceed the threshold are they judged to be a fire risk and a fire alarm is issued. At this time, the fire has already occurred for some time or even longer and has already caused losses. The fire warning is not timely and the safety is low. Summary of the Invention

[0003] The embodiments of the present invention provide a fire early warning method, device, air conditioner and storage medium, aiming to solve the problems of delayed early warning and low safety of existing indoor fires.

[0004] In a first aspect, an embodiment of the present invention provides a fire early warning method, comprising:

[0005] Controlling the infrared temperature measurement module to periodically detect the temperature of the object surface in the working environment of the air conditioner to obtain the object surface temperature;

[0006] Calculating a temperature change rate based on the surface temperature of the object, and detecting whether the working environment meets a preset fire alarm condition based on the temperature change rate and the area where the object corresponding to the temperature change rate is located;

[0007] If the working environment meets the preset fire alarm condition, a fire alarm message is sent to the user.

[0008] In a second aspect, an embodiment of the present invention further provides a fire warning device, comprising:

[0009] The control detection unit is used to control the infrared temperature measurement module to periodically detect the temperature of the object surface in the working environment of the air conditioner to obtain the object surface temperature;

[0010] a calculation and detection unit, configured to calculate a temperature change rate according to the surface temperature of the object, and detect whether the working environment meets a preset fire alarm condition according to the temperature change rate and the area where the object corresponding to the temperature change rate is located;

[0011] The sending unit is configured to send fire alarm information to the user if the working environment meets the preset fire alarm condition.

[0012] In a third aspect, an embodiment of the present invention further provides an air conditioner, which includes an infrared temperature measurement module, a memory, and a processor. The memory stores a computer program, and the processor implements the above method when executing the computer program.

[0013] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, wherein the storage medium stores a computer program, and the computer program can implement the above method when executed by a processor.

[0014] The embodiment of the present invention provides a fire warning method, device, air conditioner and storage medium. The method includes: controlling the infrared temperature measurement module to perform periodic temperature detection on the surface of the object in the working environment where the air conditioner is located to obtain the surface temperature of the object; calculating the temperature change rate according to the surface temperature of the object, and detecting whether the working environment meets the preset fire alarm condition according to the temperature change rate and the area where the object corresponding to the temperature change rate is located; if the working environment meets the preset fire alarm condition, sending a fire alarm message to the user. The technical solution of the embodiment of the present invention detects whether the working environment meets the preset fire alarm condition according to the temperature change rate and the area where the object corresponding to the temperature change rate is located. When the working environment meets the preset fire alarm condition, a fire alarm message can be sent to the user in a timely manner, thereby improving the real-time and safety of indoor fire warnings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A flow chart of a fire warning method provided by an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of a sub-process of a fire warning method provided by an embodiment of the present invention;

[0018] Figure 3 A schematic diagram of a sub-process of a fire warning method provided by an embodiment of the present invention;

[0019] Figure 4 A schematic diagram of a sub-process of a fire warning method provided by an embodiment of the present invention;

[0020] Figure 5 A schematic block diagram of a fire warning device provided by an embodiment of the present invention; and

[0021] Figure 6 A schematic block diagram of an air conditioner provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0023] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0024] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in the specification and appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0025] It should be further understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0026] As used in this specification and the appended claims, the term "if" can be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "upon determination" or "in response to determining" or "upon detection of [described condition or event]" or "in response to detecting [described condition or event]," depending on the context.

[0027] See also Figure 1 , Figure 1 FIG. 1 is a flow chart of a fire warning method according to an embodiment of the present invention. The fire warning method is described in detail below. Figure 1 As shown, the method includes the following steps S110-S130.

[0028] S110 : Control the infrared temperature measurement module to periodically detect the temperature of the object surface in the working environment of the air conditioner to obtain the object surface temperature.

[0029] In an embodiment of the present invention, when the air conditioner is powered on, the air conditioner will control the infrared temperature measurement module installed on the air conditioner to perform periodic temperature detection on the surface of objects in the working environment of the air conditioner to obtain stability of the surface of the objects. It should be noted that in this embodiment, the infrared temperature measurement module includes an infrared temperature sensor and a transmission module, wherein the infrared temperature sensor is used to scan the surface temperature of the object, and the transmission module is used to transmit the surface temperature of the object to the controller of the air conditioner. It should also be noted that in an embodiment of the present invention, the detection period is 3 minutes, that is, the surface temperature of the object is detected once every 3 minutes; the infrared temperature measurement module has a better detection effect when installed directly below the display panel of the air conditioner. It is understandable that in other embodiments, the detection period can be other values, such as once every 10 minutes; the infrared temperature measurement module can also be installed at other locations on the air conditioner, as long as it can detect the surface temperature of the object.

[0030] S120. Calculate a temperature change rate based on the surface temperature of the object, and detect whether the working environment meets a preset fire alarm condition based on the temperature change rate and the area where the object corresponding to the temperature change rate is located.

[0031] In an embodiment of the present invention, for each object in the working environment, two temperature data and two temperature detection times recorded twice adjacent to each other are obtained; the difference between the two temperature data is calculated to obtain the temperature difference, and the difference between the two temperature detection times is calculated to obtain the time difference; the quotient of the temperature difference and the time difference is calculated to obtain the temperature change rate of the object. Specifically, assuming that the current temperature T1 of the object detected by the infrared temperature measurement module corresponds to the temperature detection time t1, after the detection cycle, the infrared temperature measurement module detects that the temperature of the object is the next temperature T2, and the corresponding temperature detection time is t2, the temperature change rate of the object V = (T2-T1) / (t2-t1), and based on V and the area where the object corresponding to V is located, it is detected whether the working environment meets the preset fire alarm conditions. It can be understood that there are multiple objects in the working environment, and the temperature change rates of multiple objects can be represented by V1, V2, V3...

[0032] It should be noted that in this embodiment, after the air conditioner is powered on, the infrared temperature measurement module needs to be controlled to perform two temperature measurements on the surfaces of objects within the working environment in order to calculate the temperature change rate and perform subsequent steps based on the temperature change rate. Specifically, after the air conditioner is powered on, the infrared temperature measurement module is controlled to perform temperature measurements on the surfaces of objects within the working environment to obtain a first surface temperature and a corresponding first temperature detection time. After one detection cycle, the infrared temperature measurement module is controlled to perform temperature measurements on the surfaces of objects within the working environment to obtain a second surface temperature and a corresponding second temperature detection time. The temperature change rate is calculated based on the first surface temperature, the second surface temperature, the first temperature detection time, and the second temperature detection time. It is understood that after two detection cycles, the infrared temperature measurement module is controlled to perform temperature measurements on the surfaces of objects within the working environment to obtain a third surface temperature and a corresponding third temperature detection time. The temperature change rate can also be calculated based on the second surface temperature, the third surface temperature, the second temperature detection time, and the third temperature detection time. In other words, the temperature change rate can be calculated based on only two adjacent surface temperatures and the corresponding two temperature detection times.

[0033] In some embodiments, such as the present embodiment, Figure 2 As shown, the step S120 may include steps S121-S122.

[0034] S121. If the area where the object corresponding to the temperature change rate is located is a normal area, detecting whether the working environment meets a preset fire alarm condition using a first temperature change detection method based on the temperature change rate;

[0035] S122. If the area where the object corresponding to the temperature change rate is located is a key focus area, detecting whether the working environment meets the preset fire alarm condition by using a second temperature change detection method according to the temperature change rate.

[0036] In an embodiment of the present invention, after the air conditioner is powered on, the infrared temperature measurement module is controlled to perform two surface temperature measurements on the object to calculate the temperature change rate. Only then is it determined whether the area corresponding to the temperature change rate is a normal area. If the area corresponding to the temperature change rate is a normal area, a first temperature change detection method is used based on the temperature change rate to detect whether the working environment meets the preset fire alarm conditions. If the area corresponding to the temperature change rate is not a normal area, indicating that the area corresponding to the temperature change rate is a focus area, a second temperature change detection method is used based on the temperature change rate to detect whether the working environment meets the preset fire alarm conditions. It should be noted that in this embodiment, the initial areas of all objects in the working environment are classified as normal areas. In actual applications, the normal areas and focus areas are distinguished by preset identifiers, where the identifier for the normal area is "Nor-area" and the identifier for the focus area is "Foc-area."

[0037] In some embodiments, such as the present embodiment, Figure 3 As shown, the step S121 may include steps S1211-S1214.

[0038] S1211, determining whether the temperature change rate is greater than a first preset temperature change threshold, if the temperature change rate is greater than the first preset temperature change threshold, executing step S1212, otherwise executing step S110;

[0039] S1212: Determine the object corresponding to the temperature change rate as a first focused object, and divide the area where the first focused object is located into a focused area;

[0040] S1213, taking an object within a preset distance around the first focused object as a second focused object, and determining whether the temperature change rate corresponding to the second focused object is greater than a second preset temperature change threshold; if the temperature change rate corresponding to the second focused object is greater than the second preset temperature change threshold, executing step S1214; otherwise, executing step S110;

[0041] S1214: Determine whether the working environment meets the preset fire alarm conditions.

[0042] In an embodiment of the present invention, for ease of understanding, an example is given where a user has hot pot indoors. Assume the first preset temperature change threshold and the second preset temperature change threshold are Va and Vb respectively, and the temperature change rates of the pot, the table, and the bench are V1, V2, and V3 respectively. Determine whether the temperature change rate V1 is greater than the first preset temperature change threshold Va; if V1 > Va, then regard the pot as the first key object of concern, and divide the area where the first key object of concern is located into the key area of concern; regard the objects such as the table and bench within a preset distance around the pot as the second key objects of concern, and determine whether the working environment meets the preset fire alarm condition according to V2 and V3. Specifically, determine whether V2 and V3 are greater than Vb, where Vb < Va; if V2 > Vb and V3 > Vb, then determine that the working environment meets the preset fire alarm condition. It should be noted that in this embodiment, if V1 ≤ Va, it indicates that the temperature change rate on the surface of the pot is not high, and there is no need to divide the pot into the key area of concern, and wait for the next cycle to perform detection. That is, when the detection cycle arrives, execute step S110 to detect the surface temperature of the objects in the working environment; if V2 ≤ Vb or V3 ≤ Vb, it indicates that the temperature change rates of the table and bench around the pot are not high, and there is no need to divide the pot into the key area of concern either, and also wait for the next cycle to perform detection. That is, when the detection cycle arrives, also execute step S110 to detect the surface temperature of the objects in the working environment. It should also be noted that in this embodiment, the reason for comparing the temperature change rate of the second key object of concern with Vb is that activities such as hot pot and smoking will cause the temperature of individual objects to rise, but will not cause the temperature change rate of the surrounding objects to be too high; when a fire occurs, the temperature change rate of the fire source object increases sharply, and at the same time, it will also cause the temperature change rate of the surrounding objects to increase sharply. Therefore, after detecting the temperature change rate of the first key object of concern, it is also necessary to detect the magnitude relationship between the temperature change rate of the remaining objects within its preset distance and Vb, that is, compare the temperature change rate of the second key object of concern with Vb. Understandably, in this embodiment, the reason for setting Vb to be less than Va is that the temperature change will be lower the farther away from the first key object of concern.

[0043] In some embodiments, such as this embodiment, as Figure 4 shown, step S122 may include steps S1221 - S1223.

[0044] S1221. Determine whether the temperature change rate is greater than the third preset temperature change threshold. If the temperature change rate is not greater than the third preset temperature change threshold, then execute step S1222; otherwise, execute step S1214.

[0045] S1222. Determine whether the detection times of the key area are greater than the preset detection times. If the detection times of the key area are greater than the preset detection times, execute step S1223; otherwise, execute step S110.

[0046] S1223. Downgrade the key area to the normal area.

[0047] In the embodiment of the present invention, for the sake of easy understanding, assume that the third preset temperature change threshold is Vc. For the object divided into the key attention area in the above step S121, after the temperature detection in the next cycle, the temperature change rate V1' of the object in the next cycle can be calculated. On this basis, for the object in the key attention area, determine whether the temperature change rate V1' is greater than the third preset temperature change threshold Vc, where Vc < Va. If V1' ≤ Vc, it indicates that the temperature change rate of the object does not continue to increase, then determine whether the detection times of the key area are greater than the preset detection times, where the preset detection times is 3 times. If the detection times of the key area are greater than the preset detection times, it indicates that the surface temperature change rate of the object in the key attention area tends to be constant, for the normal activities of the user in the working environment, such as hot pot and smoking, then downgrade the key area to the normal area and return to execute step S110. If V1' > Vc, it indicates that the change rate of the object in the key attention area is continuously changing, then determine that the working environment meets the preset fire alarm condition. It should be noted that in this embodiment, Vc is set less than Va because the object has undergone a rapid temperature change in a detection cycle before being divided into the key attention area. If the temperature continues to change, that is, when the temperature change rate V1' is greater than Vc, a fire warning is sent to notify the user. If the temperature change rate V1' is not greater than Vc, the judgment of the detection times continues. It should also be noted that in this embodiment, if it is a normal activity of the user, the temperature in the key attention area will remain constant after being heated for a period of time, that is, its temperature change rate will become slower and slower and approach 0. Therefore, when the surface temperature change rate of the object in the key attention area is detected again in the next cycle, its value will be lower than the set threshold Vc. If the temperature change rate V1' still does not exceed Vc after being detected more than 3 times, the key attention area will be downgraded to the normal area. Through the above method, the air conditioner can be prevented from misdetecting normal activities in the room such as hot pot, stir-frying, and smoking.

[0048] S130. If the working environment meets the preset fire alarm condition, send a fire alarm message to the user.

[0049] In an embodiment of the present invention, when a fire occurs indoors, the temperature change rate of the ignition source object will increase sharply, and the fire source will spread to the surrounding objects, causing the temperature change rate of the surrounding objects to also increase sharply. After the air conditioner detects that the temperature change rate of the ignition source object exceeds the first preset temperature change threshold Va, and the temperature change rate of the surrounding objects within a preset distance also exceeds the second preset temperature change threshold Vb, it will issue a fire alarm message to the user to remind the user.

[0050] Figure 5 FIG is a schematic block diagram of a fire warning device 200 provided by an embodiment of the present invention. Figure 5 As shown, corresponding to the above fire warning method, the present invention also provides a fire warning device 200. The fire warning device 200 includes a unit for executing the above fire warning method, and the device can be configured in an air conditioner. Figure 5 The fire warning device 200 includes a control detection unit 201, a calculation detection unit 202 and a sending unit 203.

[0051] Among them, the control detection unit 201 is used to control the infrared temperature measurement module to perform periodic temperature detection on the surface of objects in the working environment where the air conditioner is located to obtain the surface temperature of the object; the calculation detection unit 202 is used to calculate the temperature change rate based on the surface temperature of the object, and detect whether the working environment meets the preset fire alarm conditions based on the temperature change rate and the area where the object corresponding to the temperature change rate is located; the sending unit 203 is used to send fire alarm information to the user if the working environment meets the preset fire alarm conditions.

[0052] In some embodiments, such as this embodiment, the calculation and detection unit 202 includes an acquisition unit, a first calculation unit, a second calculation unit, a first detection unit, and a second detection unit.

[0053] The acquisition unit is configured to acquire, for each object within the working environment, two temperature data and two temperature detection times recorded twice adjacent to each other for the object; the first calculation unit is configured to calculate the difference between the two temperature data to obtain a temperature difference, and to calculate the difference between the two temperature detection times to obtain a time difference; and the second calculation unit is configured to calculate the quotient of the temperature difference and the time difference to obtain a temperature change rate of the object. The first detection unit is configured to detect whether the working environment meets a preset fire alarm condition based on the temperature change rate using a first temperature change detection method if the area where the object corresponding to the temperature change rate is located is a normal area; and the second detection unit is configured to detect whether the working environment meets the preset fire alarm condition based on the temperature change rate using a second temperature change detection method if the area where the object corresponding to the temperature change rate is located is a key concern area.

[0054] In some embodiments, such as this embodiment, the first detection unit includes a first judgment unit, a division unit, and a second judgment unit.

[0055] The first judgment unit is used to judge whether the temperature change rate is greater than a first preset temperature change threshold; the division unit is used to, if the temperature change rate is greater than the first preset temperature change threshold, regard the object corresponding to the temperature change rate as a first key focus object and divide the area where the first key focus object is located into a key focus area; the second judgment unit is used to regard an object within a preset distance from the first key focus object as a second key focus object, and judge whether the working environment meets the preset fire alarm conditions based on the temperature change rate corresponding to the second key focus object.

[0056] In some embodiments, such as this embodiment, the second judgment unit includes a judgment subunit and a determination unit.

[0057] Among them, the judgment subunit is used to judge whether the temperature change rate corresponding to the second key object is greater than the second preset temperature change threshold, wherein the second preset temperature change threshold is less than the first preset temperature change threshold; the judgment unit is used to judge that the working environment meets the preset fire alarm condition if the temperature change rate corresponding to the second key object is greater than the second preset temperature change threshold.

[0058] In some embodiments, such as this embodiment, the second detection unit includes a third judgment unit, an execution unit, a fourth judgment unit, and an adjustment unit.

[0059] Among them, the third judgment unit is used to judge whether the temperature change rate is greater than the third preset temperature change threshold, wherein the third preset temperature change threshold is less than the first preset temperature change threshold; the execution unit is used to execute the step of determining whether the working environment meets the preset fire alarm condition if the temperature change rate is greater than the third preset temperature change threshold; the fourth judgment unit is used to judge whether the number of detections of the key area is greater than the preset number of detections if the temperature change rate is not greater than the third preset temperature change threshold; the adjustment unit is used to downgrade the key area to the normal area if the number of detections of the key area is greater than the preset number of detections.

[0060] The fire warning device can be implemented as a computer program. Figure 6 The air conditioner shown is running.

[0061] See also Figure 6 , Figure 6 1 is a schematic block diagram of an air conditioner provided by an embodiment of the present invention. The air conditioner 300 is a device with an infrared temperature measurement module.

[0062] See Figure 6 The air conditioner 300 includes a processor 302 , a memory, and a network interface 305 connected via a system bus 301 , wherein the memory may include a non-volatile storage medium 303 and an internal memory 304 .

[0063] The non-volatile storage medium 303 may store an operating system 3031 and a computer program 3032. When the computer program 3032 is executed, the processor 302 may execute a fire warning method.

[0064] The processor 302 is used to provide computing and control capabilities to support the operation of the entire air conditioner 300 .

[0065] The internal memory 304 provides an environment for the operation of the computer program 3032 in the non-volatile storage medium 303. When the computer program 3032 is executed by the processor 302, the processor 302 can execute a fire warning method.

[0066] The network interface 305 is used to communicate with other devices through the network. Figure 6 The structure shown in the figure is merely a block diagram of a portion of the structure related to the solution of the present invention, and does not constitute a limitation on the air conditioner 300 to which the solution of the present invention is applied. The specific air conditioner 300 may include more or fewer components than those shown in the figure, or combine certain components, or have a different component arrangement.

[0067] The processor 302 is configured to run a computer program 3032 stored in a memory to implement any embodiment of the fire warning method.

[0068] It should be understood that in the embodiment of the present invention, the processor 302 may be a central processing unit (CPU), and the processor 302 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0069] Those skilled in the art will appreciate that all or part of the steps in the method of the above-described embodiment can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. The computer program is executed by at least one processor in the computer system to implement the steps in the method of the above-described embodiment.

[0070] Therefore, the present invention further provides a storage medium. The storage medium may be a computer-readable storage medium. The storage medium stores a computer program. When executed by a processor, the computer program causes the processor to execute any embodiment of the fire warning method described above.

[0071] The storage medium may be any computer-readable storage medium that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a magnetic disk, or an optical disk.

[0072] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the above description has generally described the composition and steps of each example according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0073] In the several embodiments provided herein, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the various units is merely a logical functional division, and actual implementation may employ other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be omitted or not implemented.

[0074] The steps in the methods of the embodiments of the present invention may be adjusted in order, combined, or deleted as needed. The units in the devices of the embodiments of the present invention may be combined, divided, or deleted as needed. Furthermore, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit.

[0075] If this integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of the present invention, or the portion that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product, stored in a storage medium, includes several instructions for causing an air conditioner to execute all or part of the steps of the method described in various embodiments of the present invention.

[0076] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0077] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, to the extent such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to encompass such changes and modifications.

[0078] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A fire early warning method, characterized in that: include: Controlling the infrared temperature measurement module to periodically detect the temperature of the object surface in the working environment of the air conditioner to obtain the object surface temperature; Calculating a temperature change rate based on the surface temperature of the object, and detecting whether the working environment meets a preset fire alarm condition based on the temperature change rate and the area where the object corresponding to the temperature change rate is located; If the working environment meets the preset fire alarm condition, a fire alarm message is sent to the user; The step of detecting whether the working environment meets a preset fire alarm condition based on the temperature change rate and the area where the object corresponding to the temperature change rate is located includes: If the area where the object corresponding to the temperature change rate is located is a normal area, detecting whether the working environment meets a preset fire alarm condition by using a first temperature change detection method according to the temperature change rate; If the area where the object corresponding to the temperature change rate is located is a key area of concern, detecting whether the working environment meets the preset fire alarm condition by using a second temperature change detection method based on the temperature change rate; The step of detecting whether the working environment meets the preset fire alarm condition by using a second temperature change detection method according to the temperature change rate includes: Determining whether the temperature change rate is greater than a third preset temperature change threshold, wherein the third preset temperature change threshold is less than the first preset temperature change threshold; If the temperature change rate is greater than the third preset temperature change threshold, it is determined that the working environment meets the preset fire alarm condition; The step of detecting whether the working environment meets a preset fire alarm condition by using a first temperature change detection method according to the temperature change rate includes: Determining whether the temperature change rate is greater than the first preset temperature change threshold; If the temperature change rate is greater than the first preset temperature change threshold, the object corresponding to the temperature change rate is regarded as a first focused object, and the area where the first focused object is located is divided into the focused area; An object within a preset distance from the first key object is taken as a second key object, and whether the working environment meets the preset fire alarm condition is determined based on the temperature change rate corresponding to the second key object.

2. The method according to claim 1, characterized in that The step of determining whether the working environment meets a preset fire alarm condition based on the temperature change rate corresponding to the second key object includes: Determining whether the temperature change rate corresponding to the second focused object is greater than a second preset temperature change threshold, wherein the second preset temperature change threshold is less than the first preset temperature change threshold; If the temperature change rate corresponding to the second key object is greater than the second preset temperature change threshold, the step of determining whether the working environment meets the preset fire alarm condition is executed.

3. The method according to claim 1, characterized in that After the step of determining whether the temperature change rate is greater than a third preset temperature change threshold, the method further includes: If the temperature change rate is not greater than the third preset temperature change threshold, determining whether the number of detections of the key area is greater than a preset number of detections; If the detection times of the key area are greater than the preset detection times, the key area is downgraded to the normal area.

4. The method according to claim 1, wherein The step of calculating the temperature change rate according to the surface temperature of the object comprises: For each object in the working environment, obtaining two temperature data and two temperature detection times recorded twice adjacent to the object; Calculating the difference between the two temperature data to obtain a temperature difference, and calculating the difference between the two temperature detection times to obtain a time difference; The quotient of the temperature difference and the time difference is calculated to obtain the temperature change rate of the object.

5. A fire warning device, characterized in that: include: The control detection unit is used to control the infrared temperature measurement module to periodically detect the temperature of the surface of the object in the working environment of the air conditioner to obtain the surface temperature of the object; a calculation and detection unit, configured to calculate a temperature change rate according to the surface temperature of the object, and detect whether the working environment meets a preset fire alarm condition according to the temperature change rate and the area where the object corresponding to the temperature change rate is located; a sending unit, configured to send a fire alarm message to a user if the working environment meets the preset fire alarm condition; Wherein, the calculation and detection unit includes: a first detection unit, configured to detect whether the working environment meets a preset fire alarm condition by using a first temperature change detection method according to the temperature change rate if the area where the object corresponding to the temperature change rate is located is a normal area; a second detection unit, configured to detect whether the working environment meets the preset fire alarm condition by using a second temperature change detection method according to the temperature change rate if the area where the object corresponding to the temperature change rate is located is a key area of concern; The second detection unit includes: a third determining unit, configured to determine whether the temperature change rate is greater than a third preset temperature change threshold, wherein the third preset temperature change threshold is less than the first preset temperature change threshold; an execution unit, configured to determine that the working environment meets the preset fire alarm condition if the temperature change rate is greater than the third preset temperature change threshold; The first detection unit includes: a first judging unit, configured to judge whether the temperature change rate is greater than the first preset temperature change threshold; a dividing unit, configured to, if the temperature change rate is greater than the first preset temperature change threshold, determine the object corresponding to the temperature change rate as a first key attention object, and divide the area where the first key attention object is located into the key attention area; The second judgment unit is configured to take an object within a preset distance from the first key object as a second key object, and judge whether the working environment meets the preset fire alarm condition according to the temperature change rate corresponding to the second key object.

6. An air conditioner, characterized in that: The air conditioner includes an infrared temperature measurement module, a memory, and a processor. The memory stores a computer program. When the processor executes the computer program, the method according to any one of claims 1 to 4 is implemented.

7. A computer-readable storage medium, characterized in that The storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 4 can be implemented.

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