CN113538830B - Fire inspection method, device, equipment and computer storage medium - Google Patents
Fire inspection method, device, equipment and computer storage medium Download PDFInfo
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/005—Fire alarms; Alarms responsive to explosion for forest fires, e.g. detecting fires spread over a large or outdoors area
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
- G08B17/125—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions by using a video camera to detect fire or smoke
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- H—ELECTRICITY
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Abstract
The application provides a fire inspection method, a fire inspection device, fire inspection equipment and a computer storage medium, wherein the fire inspection method comprises the following steps: acquiring a plurality of risk areas, wherein the plurality of risk areas are acquired by panoramic images of the monitoring area; selecting target risk areas according to the risk levels of the multiple risk areas from large to small so as to sequentially carry out fire inspection on the multiple target risk areas; acquiring a plurality of inspection pitching angles between the fire inspection device and each target risk area; calculating a plurality of inspection visual ranges based on a plurality of inspection pitching angles, and obtaining inspection speeds corresponding to each inspection visual range; and according to the acquisition sequence of the inspection pitching angles, sequentially utilizing the inspection visible range and the inspection speed corresponding to the inspection pitching angles to carry out fire inspection on the target risk area. The fire inspection method gives consideration to the efficiency and the speed of fire detection.
Description
Technical Field
The present disclosure relates to the field of fire detection technologies, and in particular, to a fire inspection method, apparatus, device, and computer storage medium.
Background
Fire is one of the world disasters. Fire protection is therefore one of the primary tasks of security work in various industries. Particularly forest fire prevention in forestation industry. In the prior art, a video monitoring method is generally adopted to acquire fire conditions in a monitoring area, and specifically, the monitoring area is sequentially inspected at the same speed to acquire the fire conditions in the monitoring area, so that excessive inspection of the monitoring area with lower occurrence probability, such as a lake, is realized; too few monitoring areas with high probability of occurrence of patrol fire, such as forests, etc., result in low patrol efficiency. And, utilize the same visual scope of patrolling and examining to the monitoring area to carry out the condition of a fire and patrol and examine for important fire prevention monitoring area can not strengthen the frequency of patrolling and examining, leads to the speed of patrolling and examining slower.
Disclosure of Invention
The application provides a fire inspection method, a fire inspection device, fire inspection equipment and a computer storage medium, and mainly solves the technical problem of how to consider the efficiency and the speed of fire detection.
In order to solve the technical problem, the application provides a fire inspection method, which comprises the following steps:
acquiring a plurality of risk areas, wherein the plurality of risk areas are acquired by panoramic images of a monitoring area;
selecting a target risk area according to the risk levels of the multiple risk areas from large to small so as to sequentially carry out fire inspection on the multiple target risk areas;
acquiring a plurality of inspection pitching angles between the fire inspection device and each target risk area;
calculating a plurality of inspection visual ranges based on the inspection pitching angles, and obtaining inspection speeds corresponding to the inspection visual ranges;
and according to the acquisition sequence of the plurality of inspection pitching angles, sequentially utilizing the inspection visible range corresponding to the inspection pitching angle and the inspection speed to conduct fire inspection on the target risk area.
For solving above-mentioned technical problem, this application still provides a fire inspection device, the fire inspection device includes:
a first acquisition unit configured to acquire a plurality of risk areas obtained from panoramic images of a monitoring area;
the selection unit is used for selecting a target risk area according to the risk levels of the multiple risk areas from large to small so as to sequentially carry out fire inspection on the multiple target risk areas;
the second acquisition unit is used for acquiring a plurality of inspection pitching angles between the fire inspection device and each target risk area;
the computing unit is used for computing a plurality of inspection visual ranges based on the inspection pitching angles and obtaining inspection speeds corresponding to the inspection visual ranges;
and the fire inspection unit is used for sequentially utilizing the inspection visible range corresponding to the inspection pitching angles and the inspection speed to inspect the fire of the target risk area according to the acquisition sequence of the inspection pitching angles.
To solve the above technical problem, the present application further provides an electronic device, where the device includes a memory and a processor coupled to the memory;
the memory is used for storing program data, and the processor is used for executing the program data to realize the fire inspection method.
In order to solve the technical problem, the application also provides a computer storage medium for storing program data, wherein the program data is used for realizing the fire inspection method when being executed by a processor.
According to the method, a plurality of risk areas are obtained, and the plurality of risk areas are obtained by panoramic images of the monitoring area; selecting target risk areas according to the risk levels of the multiple risk areas from large to small so as to sequentially carry out fire inspection on the multiple target risk areas; acquiring a plurality of inspection pitching angles between the fire inspection device and each target risk area; calculating a plurality of inspection visual ranges based on a plurality of inspection pitching angles, and obtaining inspection speeds corresponding to each inspection visual range; and according to the acquisition sequence of the plurality of inspection pitching angles, sequentially utilizing the inspection visible range and the inspection speed corresponding to the inspection pitching angles to carry out fire inspection on the target risk area. According to the fire inspection method, priority ordering of risk levels is carried out on the multiple risk areas, so that fire inspection of the monitoring areas with higher risk levels is enhanced, and fire inspection of the monitoring areas with lower risk levels is reduced; and the inspection visual range of the target risk area and the inspection speed corresponding to the inspection visual range are dynamically adjusted based on the inspection pitching angle, so that the efficiency and the speed of fire inspection are considered.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a schematic flow chart of an embodiment of a fire inspection method provided in the present application;
FIG. 2 is a schematic diagram of a risk area in a panoramic image in the fire inspection method shown in FIG. 1;
FIG. 3 is a flowchart illustrating an embodiment after S102 in the fire inspection method shown in FIG. 1;
FIG. 4 is a schematic structural diagram of an embodiment of a fire inspection device provided in the present application;
FIG. 5 is a schematic structural diagram of an embodiment of an electronic device provided herein;
fig. 6 is a schematic structural diagram of an embodiment of a computer storage medium provided in the present application.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The application provides a fire inspection method which can be applied to forest fire inspection to prevent fire. Specifically, the fire inspection method is used for enhancing the fire inspection of the monitoring area with larger risk level by sequencing the priority of the risk levels of the multiple risk areas, and reducing the fire inspection of the monitoring area with smaller risk level; and the inspection visual range of the target risk area and the inspection speed corresponding to the inspection visual range are dynamically adjusted based on the inspection pitching angle, so that the efficiency and the speed of fire inspection are considered. Referring to fig. 1, fig. 1 is a flow chart of an embodiment of a fire inspection method provided in the present application.
The main body of the fire inspection method may be a fire inspection device, for example, the fire inspection method may be performed by an electronic device or a server or other processing device, where the electronic device may be a User Equipment (UE), a mobile device, a User terminal, a cellular phone, a cordless phone, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device, a computing device, a vehicle-mounted device, a wearable device, or the like. In some possible implementations, the fire inspection method may be implemented by way of a processor invoking computer readable instructions stored in a memory.
Specifically, the fire inspection method of the embodiment includes the following steps:
s101: a plurality of risk areas is acquired.
In the embodiment of the disclosure, a monitoring area with higher probability of occurrence of fire is considered to exist in a monitoring area required to be inspected by the fire inspection device, for example, a forest and the like; there may also be areas of monitoring where the probability of fire occurrence is low, e.g. lakes, bare rock, etc. In order to avoid the problem of low inspection efficiency caused by the fact that the same fire inspection mode is adopted for the monitoring area with higher fire occurrence probability and the monitoring area with lower fire occurrence probability. Therefore, the fire inspection device of the embodiment divides the monitoring area to distinguish the risk area and the non-risk area.
The risk area is a monitoring area with high probability of fire, such as a forest. The non-risk areas are monitored areas where the probability of fire occurrence is low, e.g. lakes, bare rock, etc.
The risk area and the non-risk area of the present embodiment can be obtained from a panoramic image of the monitored area. Specifically, the fire inspection device collects a plurality of images in an area range by utilizing a preset field angle according to an area coordinate range of a monitoring area, and a panoramic image in the area range is obtained by utilizing the splicing of the plurality of images so as to frame a risk area and a non-risk area in the panoramic image. For details, referring to fig. 2, a panoramic image is shown in fig. 2, the region coordinates of the panoramic image ranges from (35 °,10 °) to (180 °, -40 °), regions 1 to 3 are risk regions, and the remaining regions are non-risk regions.
In other embodiments, the fire inspection device may also extract image features of a plurality of images, and set a monitoring area, in which a similarity between the image features of the plurality of images and corresponding preset image features is greater than or equal to a preset similarity threshold, as a risk area; and setting a monitoring area with the similarity of the image features of the plurality of images and the corresponding preset image features smaller than a preset similarity threshold value as a non-risk area.
Considering that the risk area and the non-risk area are in different areas in the monitoring area, in order to facilitate the fire inspection device to distinguish the risk area and the non-risk area, the fire inspection device can record the positions by using the area coordinates of the risk area and the non-risk area. Wherein the region coordinates include horizontal coordinates and angular coordinates. Referring to fig. 2 for details, the region coordinates of each risk region in fig. 2 may be represented by (P, T).
Further, considering that the probability of occurrence of fire in a plurality of risk areas is also different, the fire inspection device of this embodiment needs to prioritize the risk levels of the plurality of risk areas, so that the fire inspection device preferentially inspects the risk areas where fire easily occurs.
In a specific embodiment, since the areas of the multiple risk areas are different, the fire inspection device of the embodiment may set the priority of the risk level according to the area of the risk area. For example, the fire inspection device may set a risk level for a risk area of greater area than a risk level for a risk area of lesser area.
In other embodiments, the fire inspection device may also set the risk level of the risk area according to the specific scenario in each risk area. For example, the fire inspection device sets a risk level of a risk area including a haystack to be greater than a risk level of a risk area including a wetland.
It should be noted that, in order to improve the efficiency of fire inspection, the fire inspection device may inspect the risk area with a larger risk level for multiple times according to the number of levels of the risk level. For example, if the fire inspection device sets the risk level of a risk area to be 3, 3 times of inspection can be performed on the risk area, so as to realize the end inspection of the area with a larger risk level.
S102: and selecting target risk areas according to the risk levels of the multiple risk areas from large to small so as to sequentially carry out fire inspection on the multiple target risk areas.
In order to improve the efficiency of fire inspection, the fire inspection device of the embodiment selects target risk areas from large to small according to the risk levels of the multiple risk areas so as to sequentially inspect the multiple target risk areas.
It should be noted that, consider that the fire inspection device passes through the non-risk area before inspecting the next target risk area after inspecting the current target risk area. In order to improve the efficiency of fire inspection, the fire inspection device of the embodiment can quickly skip the non-fire inspection device to start fire inspection of the next target risk area. Specifically, the fire inspection device can improve inspection speed to quickly skip non-risk areas. Or when the fire inspection device passes through the non-risk area, the fire inspection function is closed, and the non-risk area is skipped at the highest inspection speed, so that fire inspection of the next target risk area is started.
S103: and acquiring a plurality of inspection pitching angles between the fire inspection device and each target risk area.
Under the condition that the target risk area is oversized, the fire inspection device needs to inspect the target risk area for multiple times with the same inspection visible range and the same inspection speed so as to finish the fire inspection of the target risk area. The above mode has the problem of slower inspection speed. Therefore, the fire inspection device of the embodiment considers the specific area of the inspection target risk area based on the dynamic adjustment of the inspection visible range and the corresponding inspection speed based on different inspection pitching angles. That is, the fire inspection device adopts different inspection visible ranges and corresponding inspection speeds to conduct fire inspection in the areas of the target risk areas corresponding to different pitching angles.
Specifically, the fire inspection device calculates an inspection visible range according to the inspection pitching angles by acquiring a plurality of inspection pitching angles between the fire inspection device and each target risk area.
S104: and calculating a plurality of inspection visual ranges based on the plurality of inspection pitching angles, and obtaining the inspection speed corresponding to each inspection visual range.
Based on the plurality of inspection pitching angles in each target risk area acquired in S103, the fire inspection device in this embodiment calculates a plurality of inspection visible ranges based on the plurality of inspection pitching angles, and obtains an inspection speed corresponding to each inspection visible range.
S105: and according to the acquisition sequence of the plurality of inspection pitching angles, sequentially utilizing the inspection visible range and the inspection speed corresponding to the inspection pitching angles to carry out fire inspection on the target risk area.
The fire inspection device of the embodiment performs fire inspection on the target risk area by using the inspection visible range and the inspection speed corresponding to the plurality of inspection pitching angles between the fire inspection device and each target inspection device.
In practical application, the fire inspection device starts with the initial region coordinates of the current target risk region, and performs fire inspection on the current target risk region with the inspection visible range and the inspection speed corresponding to the current inspection pitching angle. When the current horizontal coordinate of the fire inspection device is equal to the maximum value of the horizontal coordinate range of the target risk area, adjusting the inspection pitching angle, and inspecting the current target risk area with the inspection visible range and the inspection speed corresponding to the adjusted inspection pitching angle. And repeating the process until the fire inspection of the whole target risk area is completed. And the fire inspection device selects the next target risk area smaller than the risk level of the current target risk area according to the risk level of the risk area, and performs fire inspection at the inspection visible range and the inspection speed corresponding to the inspection pitching angle until the inspection of all the target risk areas is completed.
In a specific embodiment, in order to complete the inspection target risk area, the fire inspection device may adjust the inspection pitch angle according to a certain rule. For example, the current inspection pitch angle is T1, and the next inspection pitch angle is T1-alpha/2. Wherein alpha is the inspection visible range.
In the scheme, the fire inspection device acquires a plurality of risk areas, and the plurality of risk areas are acquired by panoramic images of the monitoring area; selecting target risk areas according to the risk levels of the multiple risk areas from large to small so as to sequentially carry out fire inspection on the multiple target risk areas; acquiring a plurality of inspection pitching angles between the fire inspection device and each target risk area; calculating a plurality of inspection visual ranges based on a plurality of inspection pitching angles, and obtaining inspection speeds corresponding to each inspection visual range; and according to the acquisition sequence of the plurality of inspection pitching angles, sequentially utilizing the inspection visible range and the inspection speed corresponding to the inspection pitching angles to carry out fire inspection on the target risk area. According to the fire inspection method, priority ordering of risk levels is carried out on the multiple risk areas, so that fire inspection of the monitoring areas with higher risk levels is enhanced, and fire inspection of the monitoring areas with lower risk levels is reduced; and the inspection visual range of the target risk area and the inspection speed corresponding to the inspection visual range are dynamically adjusted based on the inspection pitching angle, so that the efficiency and the speed of fire inspection are considered.
With continued reference to fig. 3, fig. 3 is a flowchart illustrating an embodiment of the fire inspection method shown in fig. 1 after S102. On the basis of the above embodiment, S102 further includes the following steps:
s201: and acquiring the distance between each target risk area and the fire inspection device based on the area coordinates of each target risk area.
The fire inspection method of the embodiment dynamically adjusts the inspection visible range and the inspection speed based on the inspection pitching angle so as to improve the fire inspection speed. The inspection pitching angle can be obtained based on the setting height of the fire inspection device and the distance between the fire inspection device and the target risk area. Therefore, the fire inspection device of this embodiment needs to obtain the distance between each target risk area and the fire inspection device. Specifically, the fire inspection device may acquire a distance between the target risk area and the fire inspection device based on the area coordinates of the target risk area.
In a specific embodiment, for convenience in calculation, the fire inspection device may acquire the distance L between the center point of the target risk area and the fire inspection device by using the area coordinates of the target risk area.
S202: and acquiring the setting height of the fire inspection device by using the installation calibration information of the fire inspection device.
The inspection pitching angle is obtained based on the setting height of the fire inspection device and the distance between the fire inspection device and the target risk area. Therefore, the fire inspection device of this embodiment needs to obtain the setting height of the fire inspection device. Specifically, the fire inspection device needs to acquire the setting height H of the fire inspection device by using the installation calibration information of the fire inspection device.
S203: and calculating the inspection pitching angle by using the distance and the set height.
Based on the distance between the target risk area acquired in the step S201 and the fire inspection device and the set height of the fire inspection device acquired in the step S202, the fire inspection device can calculate and obtain the sine of the inspection pitching angle by using the ratio of the set height of the fire inspection device to the distance, thereby obtaining the inspection pitching angle.
S204: and calculating a plurality of inspection visual ranges based on the plurality of inspection pitching angles, and obtaining the inspection speed corresponding to each inspection visual range.
In order to ensure that the fire inspection meets the detection requirement, the fire inspection device acquires the largest inspection visible range so as to give consideration to the fire detection efficiency and speed. The fire inspection device of the embodiment has certain requirements on preset parameters. The preset parameters are the actual size of the fire point and the number of pixels occupied by the fire point.
The fire inspection device calculates the product of the preset parameter and the sine of the inspection pitching angle, and calculates the inspection visible range by using the ratio of the product to the set height.
Specifically, the calculation of the inspection visual range satisfies the following formula:
Tan(α/2)＝(K*h/B)/L
wherein alpha is the visual range of inspection, K is the actual size of the fire points in the preset parameters, B is the number of pixels occupied by the fire points in the preset parameters, h is the actual resolution height of the fire inspection device, and L is the distance between the target risk area and the fire inspection device.
Further, the fire inspection device utilizes the relation between the distance and the inspection pitching angle to change, so that the calculation of the inspection visible range meets the following formula:
α＝arctan((K*h/B)*sin(T)/H)*2
wherein T is the inspection pitching angle, and H is the setting height of the fire inspection device.
Further, the fire inspection device sets different inspection speeds according to the inspection visible range.
S205: and starting from the initial region coordinates of the current target risk region, and inspecting the target risk region at the inspection visible range and the inspection speed corresponding to the current inspection pitching angle.
Based on the multiple inspection visible ranges and the corresponding inspection speeds obtained in S204, the fire inspection device of the embodiment adjusts the inspection position of the fire inspection device based on the region coordinates of the target risk region, and inspects the target risk region with the inspection visible range and the inspection speed corresponding to the current inspection pitching angle from the initial region coordinates of the current target risk region.
For example, the horizontal coordinate at the upper left of the target risk area is P1, and the angular coordinate at the upper left is T1. The fire inspection device starts inspecting the target risk area with P1 and T1.
S206: and judging whether the current region coordinates of the fire inspection device are in the region coordinate range of the non-risk region.
Because of the regional limitation of the target risk region, when the fire inspection device inspects the target risk in the current inspection visible range and the corresponding inspection speed, the inspection may exceed the region coordinate range of the target risk region. Therefore, the fire inspection device needs to determine whether the current region coordinates of the fire inspection device are within the region coordinates of the non-risk region, and if not, S207 is executed. If yes, the inspection speed is increased, and the non-risk area is skipped at the inspection speed.
S207: and judging whether the current horizontal coordinate of the fire inspection device is equal to the maximum value of the horizontal coordinate range of the target risk area.
In order to adjust the inspection pitching angle in time, the fire inspection device of the present embodiment needs to determine whether the horizontal coordinate of the fire inspection device is equal to the maximum value of the horizontal coordinate range of the target risk area, and if so, S208 is executed. If not, continuing to carry out fire inspection on the target risk area at the current inspection visible range and the inspection speed corresponding to the current inspection visible range.
S208: and judging whether the angle coordinate of the fire inspection device is equal to the minimum value of the angle coordinate range of the target risk area.
The fire inspection device acquires the current horizontal coordinate of the fire inspection device equal to the maximum value of the horizontal coordinate range of the target risk area, further judges whether the angle coordinate of the fire inspection device is equal to the minimum value of the angle coordinate range of the target risk area, if so, executes S209, otherwise, adjusts the inspection pitching angle, and performs fire inspection on the target risk area in the inspection visible range and inspection speed corresponding to the adjusted inspection pitching angle.
S209: if yes, selecting a risk area of the next risk level as a target risk area, and sequentially carrying out inspection on the target risk area according to inspection visible ranges corresponding to a plurality of inspection pitching angles of the target risk area and the inspection speed corresponding to the inspection pitching angles until all the target risk areas are inspected.
When the fire inspection device finishes inspecting the current target risk area, selecting a next target risk area according to the risk level of the risk area, sequentially inspecting the next target risk area according to inspection visible ranges corresponding to a plurality of inspection pitching angles of the next target risk area and the inspection speed corresponding to the inspection pitching angles, and repeating the processes until all the target risk areas are inspected.
In the scheme, the fire inspection device sorts the priority of the risk levels of the multiple risk areas to strengthen the fire inspection of the monitoring area with higher risk levels and reduce the fire inspection of the monitoring area with lower risk levels; and the inspection visual range of the target risk area and the inspection speed corresponding to the inspection visual range are dynamically adjusted based on the inspection pitching angle, so that the efficiency and the speed of fire inspection are considered.
In order to implement the fire inspection method of the above embodiment, the present application further provides a fire inspection device, and referring specifically to fig. 4, fig. 4 is a schematic structural diagram of an embodiment of the fire inspection device provided in the present application.
The fire inspection device 400 includes a first acquiring unit 41, a selecting unit 42, a second acquiring unit 43, a calculating unit 44, and a fire inspection unit 45.
Specifically, the first acquiring unit 41 is configured to acquire a plurality of risk areas, the plurality of risk areas being obtained from a panoramic image of the monitoring area.
And the selection unit 42 is configured to select the target risk areas according to the risk levels of the multiple risk areas from large to small, so as to sequentially perform fire inspection on the multiple target risk areas.
A second obtaining unit 43, configured to obtain a plurality of inspection pitch angles between the fire inspection device and each target risk area.
The calculating unit 44 is configured to calculate a plurality of inspection visible ranges based on the plurality of inspection pitching angles, and obtain an inspection speed corresponding to each inspection visible range.
The fire inspection unit 45 is configured to sequentially perform fire inspection on the target risk area by using an inspection visible range and an inspection speed corresponding to the inspection pitching angles according to an acquisition sequence of the inspection pitching angles.
In order to implement the fire inspection method of the above embodiment, an electronic device is provided in the present application, and referring specifically to fig. 5, fig. 5 is a schematic structural diagram of an embodiment of the electronic device provided in the present application.
The electronic device 500 comprises a memory 51 and a processor 52, wherein the memory 51 and the processor 52 are coupled.
The memory 51 is used for storing program data, and the processor 52 is used for executing the program data to implement the fire inspection method of the above embodiment.
In the present embodiment, the processor 52 may also be referred to as a CPU (Central Processing Unit ). The processor 52 may be an integrated circuit chip having signal processing capabilities. Processor 52 may also be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The general purpose processor may be a microprocessor or the processor 52 may be any conventional processor or the like.
The present application also provides a computer storage medium, as shown in fig. 6, where the computer storage medium 600 is configured to store program data 61, and the program data 61, when executed by a processor, is configured to implement a fire inspection method as described in an embodiment of the method of the present application.
The methods referred to in embodiments of the fire inspection methods of the present application, when implemented in the form of software functional units and sold or used as stand-alone products, may be stored in an apparatus, such as a computer readable storage medium. In light of such understanding, the technical solutions of the present application may be embodied essentially or in part or all or part of the technical solutions that contribute to the prior art, or in a software product stored in a storage medium, comprising instructions for causing a computer device (which may be a personal computer, an abnormality detection device of a bayonet device, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing description is only of embodiments of the present application, and is not intended to limit the scope of the patent application, and all equivalent structures or equivalent processes using the descriptions and the contents of the present application or other related technical fields are included in the scope of the patent application.
Claims (7)
1. The fire inspection method is characterized by comprising the following steps of:
acquiring a plurality of risk areas, wherein the plurality of risk areas are acquired by panoramic images of a monitoring area;
selecting a target risk area according to the risk levels of the multiple risk areas from large to small so as to sequentially carry out fire inspection on the multiple target risk areas;
acquiring a plurality of inspection pitching angles between the fire inspection device and each target risk area, wherein the current inspection pitching angle is T1, and the next inspection pitching angle is T1-alpha/2;
calculating a plurality of inspection visual ranges based on the plurality of inspection pitching angles, and obtaining inspection speeds corresponding to each inspection visual range, wherein the method comprises the following steps:
calculating the product of a preset parameter and the sine of the inspection pitching angle;
calculating a patrol visible range by using the ratio of the product to the set height;
the calculation of the inspection visual range satisfies the following formula:
Tan(α/2) = (K*h/B)/L
wherein alpha is the inspection visible range, K is the actual area size of the fire points in the preset parameters, B is the number of pixels occupied by the fire points in the preset parameters, h is the actual resolution height of the fire inspection device, and L is the distance between the target risk area and the fire inspection device;
according to the acquisition sequence of the inspection pitching angles, sequentially utilizing the inspection visual range corresponding to the inspection pitching angles and the inspection speed to conduct fire inspection on the target risk area, wherein the method comprises the following steps:
starting from an initial region coordinate of a current target risk region, inspecting the target risk region with an inspection visible range and an inspection speed corresponding to a current inspection pitching angle, wherein the initial region coordinate comprises an initial horizontal coordinate and an initial angle coordinate of the current target risk region;
when the current horizontal coordinate of the fire inspection device is equal to the maximum value of the horizontal coordinate range of the target risk area, judging whether the angle coordinate of the fire inspection device is equal to the minimum value of the angle coordinate range of the target risk area;
if yes, ending the fire inspection of the current target risk area;
if not, the target risk area is inspected with the inspection visible range corresponding to the next inspection pitching angle and the inspection speed.
2. The fire inspection method of claim 1, wherein the step of obtaining a plurality of inspection pitch angles between the fire inspection device and each of the target risk areas comprises:
acquiring the distance between each target risk area and the fire inspection device based on the area coordinates of each target risk area;
acquiring the setting height of the fire inspection device by using the installation calibration information of the fire inspection device;
and calculating the inspection pitching angle by using the distance and the set height.
3. The fire inspection method according to claim 1, wherein after the step of inspecting the target risk area with the inspection visible range and the inspection speed corresponding to the current inspection pitch angle from the initial area coordinates of the current target risk area, the method further comprises:
acquiring a non-risk area;
judging whether the current region coordinates of the fire inspection device are in the region coordinate range of the non-risk region or not;
if yes, the inspection speed is increased, and the non-risk area is skipped at the inspection speed.
4. The fire inspection method of claim 1, wherein the step of acquiring a plurality of risk areas, the plurality of risk areas being obtained from panoramic images of the monitored area, further comprises
Acquiring an area coordinate range of a monitoring area, wherein the area coordinate range comprises a horizontal coordinate range and an angle coordinate range;
collecting a plurality of images in the region coordinate range by utilizing a preset field angle;
and splicing the plurality of images to obtain a panoramic image so as to frame a risk area and a non-risk area in the panoramic image.
5. The utility model provides a fire condition inspection device which characterized in that, the fire condition inspection device includes:
a first acquisition unit configured to acquire a plurality of risk areas obtained from panoramic images of a monitoring area;
the selection unit is used for selecting a target risk area according to the risk levels of the multiple risk areas from large to small so as to sequentially carry out fire inspection on the multiple target risk areas;
the second acquisition unit is used for acquiring a plurality of inspection pitching angles between the fire inspection device and each target risk area;
the calculating unit is configured to calculate a plurality of inspection visual ranges based on the plurality of inspection pitch angles, and obtain an inspection speed corresponding to each inspection visual range, and include:
calculating the product of a preset parameter and the sine of the inspection pitching angle;
calculating a patrol visible range by using the ratio of the product to the set height;
the calculation of the inspection visual range satisfies the following formula:
Tan(α/2) = (K*h/B)/L
wherein alpha is the inspection visible range, K is the actual area size of the fire points in the preset parameters, B is the number of pixels occupied by the fire points in the preset parameters, h is the actual resolution height of the fire inspection device, and L is the distance between the target risk area and the fire inspection device;
the fire inspection unit is used for sequentially utilizing the inspection visible range corresponding to the inspection pitching angle and the inspection speed to inspect the fire of the target risk area according to the acquisition sequence of the inspection pitching angle, sequentially utilizing the inspection visible range corresponding to the inspection pitching angle and the inspection speed to inspect the fire of the target risk area, and comprises the following steps:
starting from an initial region coordinate of a current target risk region, inspecting the target risk region with an inspection visible range and an inspection speed corresponding to a current inspection pitching angle, wherein the initial region coordinate comprises an initial horizontal coordinate and an initial angle coordinate of the current target risk region;
when the current horizontal coordinate of the fire inspection device is equal to the maximum value of the horizontal coordinate range of the target risk area, judging whether the angle coordinate of the fire inspection device is equal to the minimum value of the angle coordinate range of the target risk area;
if yes, ending the fire inspection of the current target risk area;
if not, the target risk area is inspected with the inspection visible range corresponding to the next inspection pitching angle and the inspection speed.
6. An electronic device comprising a memory and a processor coupled to the memory;
wherein the memory is for storing program data and the processor is for executing the program data to implement the fire inspection method according to any one of claims 1 to 4.
7. A computer storage medium for storing program data which, when executed by a processor, is adapted to carry out a fire inspection method as claimed in any one of claims 1 to 4.
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