CN117767124B - High-low voltage power distribution cabinet with fireproof monitoring function - Google Patents
High-low voltage power distribution cabinet with fireproof monitoring function Download PDFInfo
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- CN117767124B CN117767124B CN202311501208.7A CN202311501208A CN117767124B CN 117767124 B CN117767124 B CN 117767124B CN 202311501208 A CN202311501208 A CN 202311501208A CN 117767124 B CN117767124 B CN 117767124B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 69
- 238000009434 installation Methods 0.000 claims abstract description 26
- 238000012423 maintenance Methods 0.000 claims abstract description 19
- 238000012806 monitoring device Methods 0.000 claims abstract description 7
- 239000000779 smoke Substances 0.000 claims description 36
- 238000005299 abrasion Methods 0.000 claims description 33
- 238000005507 spraying Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 11
- 230000000007 visual effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 230000002265 prevention Effects 0.000 abstract description 4
- 208000035874 Excoriation Diseases 0.000 description 27
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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Abstract
The invention discloses a high-low voltage power distribution cabinet with fireproof monitoring, which relates to the technical field of high-low voltage power distribution cabinets, and the technical scheme is characterized in that the high-low voltage power distribution cabinet with the fireproof monitoring comprises a power distribution cabinet body, a monitoring device, a master control module, a display device and an alarm device; through the monitoring video of gathering electrical equipment and cable body, gather the smog concentration in the electrical equipment installation district, gather the operating temperature of electrical equipment and cable body, can calculate the maintenance suggestion time of cable body maintenance to maintenance personnel can in time repair maintenance work to electrical equipment and cable body, have avoided the problem of follow-up short circuit to take fire, have improved holistic fire behavior. The fire extinguisher is arranged in the existing high-low voltage power distribution cabinet, but the fire extinguisher can be used only when a fire disaster occurs, so that the circuit is damaged, and the fire prevention effect is not achieved from the root.
Description
Technical Field
The invention relates to the technical field related to high-low voltage power distribution cabinets, in particular to a high-low voltage power distribution cabinet with fireproof monitoring function.
Background
The high-low voltage power distribution cabinet is the power distribution equipment for distributing, controlling, metering and connecting cables in an electric power supply system, the high-voltage switch cabinet is used in general power supply offices and power substations, then the low-voltage side is led out to the low-voltage power distribution cabinet through the voltage reduction of a transformer, the low-voltage power distribution cabinet is further connected to the distribution board of each power utilization, the control box and the switch box, and the equipment of the power distribution device which integrally meets the design function requirement is arranged inside the power distribution cabinet through protecting devices such as switches, circuit breakers, fuses, buttons, indication lamps, meters and wires.
In the using process of the high-low voltage power distribution cabinet, short circuit or long-time overload can be caused because of damage to the insulation part of the electric wire, the temperature of the electric wire is increased, and stronger sparks and electric arcs are generated, so that the insulation layer is quickly burnt, metal is melted, and surrounding combustible materials are burnt, so that fire disasters are caused.
The existing high-low voltage power distribution cabinet is internally provided with a fire extinguisher, but the fire extinguisher can be used only when a fire disaster occurs, so that the circuit is damaged, and the fire prevention effect is not achieved from the root.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a high-low voltage power distribution cabinet with fireproof monitoring function, which aims to solve the technical problems.
In order to achieve the above purpose, the present invention provides the following technical solutions: the high-low voltage power distribution cabinet with the fireproof monitoring comprises a power distribution cabinet body, a monitoring device, a master control module, a display device and an alarm device;
An electrical equipment installation area for installing electrical equipment is formed in the power distribution cabinet body;
The monitoring device comprises a flame detection camera, a temperature sensor and a smoke sensor, wherein the flame detection camera, the temperature sensor and the smoke sensor are used for monitoring the environment in an electric equipment installation area, and the flame detection camera is used for acquiring monitoring videos of electric equipment and a cable body and outputting video data; the smoke sensor is used for collecting smoke concentration in an electric equipment installation area and outputting smoke concentration data; the temperature sensor is used for collecting the working temperatures of the electrical equipment and the cable body and outputting temperature data;
the master control module is used for analyzing the video data, intercepting a monitoring image from a monitoring video of the cable body, calculating the abrasion area of the cable body and outputting calculation data comprising the abrasion area;
the master control module is also used for calculating a real-time loss value K affecting the service life of the cable body at regular time according to an affecting index affecting the service life of the cable body; and calculating the abrasion degree of the cable body according to the real-time loss value K Where K' is a previously calculated historical loss value, N is a loss coefficient of the historical loss value to the real-time loss value K, i=1, 2,3. The master control module is also used for converting the abrasion degree A into maintenance recommended time T for maintaining the cable body;
The master control module is also used for analyzing the smoke concentration in the electric equipment installation area, judging whether the smoke concentration exceeds a preset concentration threshold value, judging that the electric equipment installation area has a fire condition when the smoke concentration exceeds the preset concentration threshold value, and outputting alarm information;
The display device is used for displaying real-time smoke concentration data, temperature data and maintenance recommended time; the display device comprises a display screen, and the display screen is arranged on the power distribution cabinet body.
The alarm device is used for sending a fire extinguishing instruction to the upper computer when the master control module outputs alarm information.
As a further scheme of the invention: the method for calculating the abrasion area of the cable body by the master control module comprises the following steps of;
intercepting a monitoring image from a monitoring video of the cable body at regular time, comparing the intercepted monitoring image with a comparison image arranged in a system, and identifying a place where the outer skin of the cable body is worn;
acquiring at least three pixel points of a cable body sheath abrasion place in a monitoring image;
And drawing a sheath abrasion pattern through a plurality of pixel points, calculating the abrasion area of the cable body through calculating the sheath abrasion pattern, and outputting calculation data comprising the abrasion area.
As a further scheme of the invention: calculating the real-time loss value of the influence on the service life of the cable body according to the following formulaWherein t is the service time of the cable body; z is an influence index, and lambda is an influence coefficient corresponding to the influence index.
As a further scheme of the invention: the influence indexes affecting the service life of the cable body comprise calculation data, temperature data and smoke concentration data.
As a further scheme of the invention: the master control module converts the wear degree A into maintenance recommended time T for maintaining the cable body according to a formula T=Adelta, wherein delta is a preset conversion coefficient.
As a further scheme of the invention: still be equipped with extinguishing device in the electrical equipment installation district, extinguishing device installs in one side that electrical equipment was kept away from in the electrical equipment installation district, extinguishing device includes automatic extinguisher, fire tube and fire extinguishing cover, the fire extinguishing cover is installed to automatic extinguisher's fire tube export, the fire extinguishing cover is just to electrical equipment and cable body setting, automatic extinguisher is used for putting out a fire to electrical equipment blowout dry powder when alarm device sends fire extinguishing instruction to the host computer.
As a further scheme of the invention: the fire extinguishing cover is installed on the support frame through the universal joint, the universal joint is connected with the support frame in a rotating mode, and the spraying angle of the fire extinguishing cover is achieved by adjusting the angle of the universal joint in the support frame through the adjusting piece.
As a further scheme of the invention: the master control module is used for identifying the fire in the video data, judging the position where the fire appears when the fire exists in the monitoring video, and outputting the fire coordinate; the adjusting piece adjusts the spraying angle of the fire extinguishing cover to a position where the fire extinguishing cover is opposite to the position where the fire occurs according to the fire coordinates.
As a further scheme of the invention: when the master control module recognizes that fire exists in the monitoring video, judging the position where the fire appears and outputting fire coordinates; the method for adjusting the spraying angle of the fire extinguishing cover to the position where the fire extinguishing cover is opposite to the position where the fire occurs by the adjusting piece according to the fire coordinate comprises the following steps:
Intercepting a monitoring image from a monitoring video of the cable body;
Establishing a coordinate system, and cutting a monitoring image to a preset reference point in the monitoring image to obtain a coordinate system origin; the joint of the preset reference point, the universal joint and the support frame is positioned on the same coordinate axis;
Acquiring fire coordinates (x, y) of a position where a fire occurs;
According to the formula Calculating an azimuth angle theta between the position where the fire occurs and the fire extinguishing cover;
The adjusting member adjusts the spray angle of the fire extinguishing cover according to the azimuth angle theta.
As a further scheme of the invention: the alarm device is also used for alarming when sending a fire extinguishing instruction to the upper computer, and comprises an audible and visual alarm which is used for alarming through audible and visual when sending the fire extinguishing instruction to the upper computer.
Compared with the prior art, the invention has the following beneficial effects:
According to the invention, the monitoring videos of the electrical equipment and the cable body are collected through the flame detection camera, the smoke sensor is used for collecting the smoke concentration in the installation area of the electrical equipment, and the temperature sensor is used for collecting the working temperature of the electrical equipment and the cable body, so that the total control module can calculate the real-time loss value K of the service life influence of the cable body, further calculate the abrasion degree of the cable body, and finally convert the abrasion degree A into the maintenance recommended time T for maintaining the cable body, thereby maintenance personnel can timely maintain the electrical equipment and the cable body, the problem of short-circuit fire caused by the fact that the electrical equipment and the cable body are in a state of high-temperature heating working for a long time and the cable body is in a state of breakage and the like is avoided, and the integral fireproof performance is improved. The fire extinguisher is arranged in the existing high-low voltage power distribution cabinet, but the fire extinguisher can be used only when a fire disaster occurs, so that the circuit is damaged, and the fire prevention effect is not achieved from the root.
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, it being obvious that the drawings described below are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a high and low voltage power distribution cabinet with fire protection monitoring;
FIG. 2 is a schematic diagram of another configuration of a high and low voltage power distribution cabinet with fire protection monitoring;
Fig. 3 is a cross-sectional view of a high and low voltage power distribution cabinet with fire protection monitoring.
1. A power distribution cabinet body; 2. a fire-extinguishing cover; 3. a support frame; 4. an audible and visual alarm; 6. a cabinet door body; 7. a rain shield; 8. an automatic fire extinguisher; 9. a fire extinguishing pipe; 10. a universal joint; 11. a flame detection camera; 12. a temperature sensor; 13. a cable body; 14. an electrical device; 15. a display screen; 16. an electrical equipment installation area; 17. an electro-hydraulic cylinder; 18. a smoke sensor.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is evident that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
An embodiment of a high-low voltage power distribution cabinet with fire protection monitoring according to the present invention will be further described with reference to fig. 1 to 3.
Referring to fig. 1 to 3, in one embodiment of the present invention, a high-low voltage power distribution cabinet with fire protection monitoring includes a power distribution cabinet body 1, a monitoring device, a master control module, a display device and an alarm device;
an electrical equipment installation area 16 for installing electrical equipment 14 is formed in the power distribution cabinet body 1; the power distribution cabinet body 1 is also provided with a cabinet door body 6 for sealing the electric equipment installation area 16; the top of the power distribution cabinet body 1 is provided with a rain shield 7.
The monitoring device comprises a flame detection camera 11, a temperature sensor 12 and a smoke sensor 18, wherein the flame detection camera 11 is used for monitoring the environment in an electric equipment installation area 16, and the flame detection camera 11 is used for acquiring monitoring videos of electric equipment 14 and a cable body 13 and outputting video data; the smoke sensor 18 is used for collecting smoke concentration in the electric equipment installation area 16 and outputting smoke concentration data; the temperature sensor 12 is used for collecting the working temperatures of the electrical equipment 14 and the cable body 13 and outputting temperature data;
the master control module is used for analyzing the video data, intercepting a monitoring image from a monitoring video of the cable body 13, calculating the abrasion area of the cable body 13 and outputting calculation data comprising the abrasion area;
The master control module is also used for calculating a real-time loss value K affecting the service life of the cable body 13 at regular time according to an affecting index affecting the service life of the cable body 13; and calculates the abrasion degree of the cable body 13 according to the real-time loss value K Where K' is a previously calculated historical loss value, N is a loss coefficient of the historical loss value to the real-time loss value K, i=1, 2,3. The master control module is also used for converting the abrasion degree A into maintenance recommended time T for maintaining the cable body 13; the loss coefficient N is preset in advance, the value range is preferably 0.01-0.1, and the loss coefficient N can be selected according to actual conditions; in the calculation process of the wear degree a, the influence of the historical loss value K' on the wear degree of the cable body 13 can be considered, and the greater the historical loss value is, the faster the subsequent wear rate becomes, so that the accuracy of the calculation of the wear degree can be improved.
The master control module is further used for analyzing the smoke concentration in the electrical equipment installation area 16, judging whether the smoke concentration exceeds a preset concentration threshold, judging that the electrical equipment installation area 16 has a fire condition when the smoke concentration exceeds the preset concentration threshold, and outputting alarm information;
the display device is used for displaying real-time smoke concentration data, temperature data and maintenance recommended time; the display device comprises a display screen 15, and the display screen 15 is arranged on the power distribution cabinet body 1.
The alarm device is used for sending a fire extinguishing instruction to the upper computer when the master control module outputs alarm information, so that a manager can timely arrive at the current fire extinguishing and emergency repair work.
The monitoring videos of the electrical equipment 14 and the cable body 13 are collected through the flame detection camera 11, the smoke sensor 18 is used for collecting the smoke concentration in the electrical equipment installation area 16, the temperature sensor 12 is used for collecting the working temperature of the electrical equipment 14 and the cable body 13, and therefore the total control module can calculate the real-time loss value K of the service life of the cable body 13, and further calculate the abrasion degree of the cable body 13, and finally the abrasion degree A can be converted into the maintenance recommended time T for maintaining the cable body 13, so that maintenance personnel can timely maintain the electrical equipment 14 and the cable body 13, the problem that short circuit fires are caused because the electrical equipment 14 and the cable body 13 are in a state of high-temperature heating work for a long time, the cable body 13 is in a state of breakage and the like is avoided, and the integral fireproof performance is improved. The fire extinguisher is arranged in the existing high-low voltage power distribution cabinet, but the fire extinguisher can be used only when a fire disaster occurs, so that the circuit is damaged, and the fire prevention effect is not achieved from the root.
In one case of the present embodiment, the method for calculating the wear area of the cable body 13 by the master control module includes the steps of;
intercepting a monitoring image from a monitoring video of the cable body 13 at regular time, comparing the intercepted monitoring image with a comparison image arranged in a system, and identifying a place where the outer skin of the cable body 13 is worn when the outer skin is detached or the outer skin is incomplete;
acquiring at least three pixel points of the abrasion place of the outer skin of the cable body 13 in the monitoring image;
the sheath abrasion pattern is drawn by a plurality of pixel points, the abrasion area of the cable body 13 is calculated by calculating the sheath abrasion pattern, and calculation data including the abrasion area is output.
It should be noted that, when the skin abrasion pattern is a triangle, the corresponding triangle area calculation formula is adopted for calculation. In practical application, the more pixel points are acquired, the more accurate the calculated value is, when the outer skin abrasion graph is polygonal, the outer skin abrasion graph can be divided into a plurality of polygons or/and rectangles, and then the abrasion area is calculated by accumulating the areas of the polygons or/and the rectangles.
In one embodiment of the invention, the real-time loss value for the effect on the life of the cable body 13 is calculated according to the following formulaWherein t is the duration of use of the cable body 13; z is an influence index, and lambda is an influence coefficient corresponding to the influence index.
In the present embodiment, the influence indexes affecting the life span of the cable body 13 include calculation data, temperature data, and smoke concentration data. It is necessary to say that the influence coefficients λ of the calculation data, the temperature data and the smoke concentration data are different, and because the influence of the calculation data, the temperature data and the smoke concentration data on the maintenance is different, it is preferable that the influence coefficient λ of the smoke concentration data is larger than the influence coefficient λ of the temperature data, and the influence coefficient λ of the temperature data is larger than the influence coefficient λ of the calculation data.
In this embodiment, the master control module converts the wear degree a into a maintenance recommended time T for maintaining the cable body 13 according to the formula t=aδ, where δ is a preset conversion coefficient. The conversion coefficient can be preset according to actual conditions, and the maintenance recommended time T is preferably in days.
Referring to fig. 1 to 3, in one embodiment of the present invention, a fire extinguishing device is further disposed in the electrical equipment installation area 16, the fire extinguishing device is installed on a side, away from the electrical equipment 14, of the electrical equipment installation area 16, the fire extinguishing device includes an automatic fire extinguisher 8, a fire extinguishing pipe 9 and a fire extinguishing cover 2, the fire extinguishing cover 2 is installed at an outlet of the fire extinguishing pipe 9 of the automatic fire extinguisher 8, the fire extinguishing cover 2 is disposed opposite to the electrical equipment 14 and the cable body 13, and the automatic fire extinguisher 8 is used for spraying dry powder to the electrical equipment 14 to extinguish a fire when the alarm device sends a fire extinguishing instruction to an upper computer.
In this embodiment, the fire-extinguishing cover 2 is mounted on the support frame 3 through a universal joint 10, the universal joint 10 is rotatably connected with the support frame 3, and the spraying angle of the fire-extinguishing cover 2 is realized by adjusting the angle of the universal joint 10 in the support frame 3 through an adjusting piece.
In order to improve fire extinguishing accuracy, in this embodiment, the master control module is configured to identify a fire in the video data, and when it is identified that the fire exists in the monitoring video, determine a location where the fire occurs, and output a fire coordinate; the adjusting piece adjusts the spraying angle of the fire extinguishing cover 2 to the position where the fire extinguishing cover 2 is opposite to the position where the fire occurs according to the fire coordinates.
Preferably, when the master control module recognizes that a fire exists in the monitoring video, judging the position where the fire appears and outputting the fire coordinate; the method for adjusting the spraying angle of the fire extinguishing cover 2 to the position where the fire extinguishing cover 2 is opposite to the position where the fire occurs by the adjusting piece according to the fire coordinates comprises the following steps:
intercepting a monitoring image from a monitoring video of the cable body 13;
Establishing a coordinate system, and cutting a monitoring image to a preset reference point in the monitoring image to obtain a coordinate system origin; the preset reference point is positioned on the same coordinate axis with the joint of the universal joint 10 and the support frame 3;
Acquiring fire coordinates (x, y) of a position where a fire occurs;
According to the formula Calculating an azimuth angle theta between the position where the fire occurs and the fire extinguishing cover 2;
the adjusting piece adjusts the spraying angle of the fire extinguishing cover 2 according to the azimuth angle theta; then the automatic fire extinguisher 8 is started, and dry powder is sprayed at the fire position through the fire extinguishing cover 2;
The adjusting part in this embodiment includes an electro-hydraulic cylinder 17 installed on the support frame 3, the end of the telescopic end of the electro-hydraulic cylinder 17 is hinged with one end of the universal joint 10 or the outer wall of the fire extinguishing cover 2, in order to implement multi-angle adjustment, at least two electro-hydraulic cylinders 17 are provided, and two electro-hydraulic cylinders 17 are respectively disposed at one end and one side of the universal joint 10, so as to enable the fire extinguishing cover 2 to be driven to swing along the y-axis direction or the x-axis direction of the coordinate system.
In this embodiment, the alarm device is further used for alarming when sending a fire extinguishing instruction to the upper computer, and the alarm device comprises an audible and visual alarm 4, and the audible and visual alarm 4 is used for alarming through audible and visual when sending a fire extinguishing instruction to the upper computer. Until the manager presses the reset button or when the master control module recognizes that the fire condition no longer occurs in the monitoring video.
It is necessary to explain that the master control module identifies the fire in the monitoring video as the prior art, and this embodiment is not repeated.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (10)
1. The high-low voltage power distribution cabinet with the fireproof monitoring function is characterized by comprising a power distribution cabinet body (1), a monitoring device, a master control module, a display device and an alarm device;
An electrical equipment installation area (16) for installing electrical equipment (14) is formed in the power distribution cabinet body (1);
The monitoring device comprises a flame detection camera (11), a temperature sensor (12) and a smoke sensor (18) which are used for monitoring the environment in an electric equipment installation area (16), wherein the flame detection camera (11) is used for acquiring monitoring videos of electric equipment (14) and a cable body (13) and outputting video data; the smoke sensor (18) is used for collecting smoke concentration in the electric equipment installation area (16) and outputting smoke concentration data; the temperature sensor (12) is used for collecting the working temperatures of the electrical equipment (14) and the cable body (13) and outputting temperature data;
The master control module is used for analyzing the video data, intercepting a monitoring image from a monitoring video of the cable body (13), calculating the abrasion area of the cable body (13), and outputting calculation data comprising the abrasion area;
The master control module is also used for calculating a real-time loss value K affecting the service life of the cable body (13) at regular time according to an affecting index affecting the service life of the cable body (13); and calculates the abrasion degree of the cable body (13) according to the real-time loss value K Where K' is a previously calculated historical loss value, N is a loss coefficient of the historical loss value to the real-time loss value K, i=1, 2,3. The master control module is also used for converting the abrasion degree A into maintenance recommended time T for maintaining the cable body (13);
The master control module is also used for analyzing the smoke concentration in the electric equipment installation area (16), judging whether the smoke concentration exceeds a preset concentration threshold, judging that the electric equipment installation area (16) has a fire condition when the smoke concentration exceeds the preset concentration threshold, and outputting alarm information;
The display device is used for displaying real-time smoke concentration data, temperature data and maintenance recommended time; the display device comprises a display screen (15), and the display screen (15) is arranged on the power distribution cabinet body (1);
the alarm device is used for sending a fire extinguishing instruction to the upper computer when the master control module outputs alarm information.
2. A high and low voltage power distribution cabinet with fire protection monitoring according to claim 1, characterized in that the method of calculating the wear area of the cable body (13) by the master control module comprises the following steps;
Intercepting a monitoring image from a monitoring video of the cable body (13) at regular time, comparing the intercepted monitoring image with a comparison image arranged in a system, and identifying a place where the outer skin of the cable body (13) is worn;
acquiring at least three pixel points of a cable body (13) sheath abrasion place in a monitoring image;
a sheath abrasion pattern is drawn by a plurality of pixel points, the abrasion area of the cable body (13) is calculated by calculating the sheath abrasion pattern, and calculation data including the abrasion area is outputted.
3. A high and low voltage power distribution cabinet with fire protection monitoring according to claim 2, characterized in that the real time loss value for the life impact of the cable body (13) is calculated according to the following formulaWherein t is the service time of the cable body (13); z is an influence index, and lambda is an influence coefficient corresponding to the influence index.
4. A high and low voltage power distribution cabinet with fire protection monitoring according to claim 3, characterized in that the influencing indicators affecting the service life of the cable body (13) comprise calculation data, temperature data and smoke concentration data.
5. The high-low voltage power distribution cabinet with fire protection monitoring according to claim 4, characterized in that the master control module converts the wear degree a into a maintenance recommended time T for maintaining the cable body (13) according to the formula T = aδ, wherein δ is a preset conversion coefficient.
6. The high-low voltage power distribution cabinet with fireproof monitoring according to claim 1, characterized in that a fire extinguishing device is further arranged in the electrical equipment installation area (16), the fire extinguishing device is arranged on one side, far away from the electrical equipment (14), of the electrical equipment installation area (16) and comprises an automatic fire extinguisher (8), a fire extinguishing pipe (9) and a fire extinguishing cover (2), the fire extinguishing cover (2) is arranged at the outlet of the fire extinguishing pipe (9) of the automatic fire extinguisher (8), the fire extinguishing cover (2) is opposite to the electrical equipment (14) and the cable body (13), and the automatic fire extinguisher (8) is used for spraying dry powder to the electrical equipment (14) to extinguish a fire when the alarm device sends a fire extinguishing instruction to an upper computer.
7. The high-low voltage power distribution cabinet with fireproof monitoring according to claim 6, wherein the fire extinguishing cover (2) is installed on the supporting frame (3) through a universal joint (10), the universal joint (10) is rotationally connected with the supporting frame (3), and the spraying angle of the fire extinguishing cover (2) is achieved by adjusting the angle of the universal joint (10) in the supporting frame (3) through an adjusting piece.
8. The high-low voltage power distribution cabinet with fireproof monitoring function according to claim 7, wherein the master control module is used for identifying fire in video data, judging the position where the fire occurs when the fire is identified to exist in the monitoring video, and outputting fire coordinates; the adjusting piece adjusts the spraying angle of the fire extinguishing cover (2) to the position where the fire extinguishing cover (2) is opposite to the position where the fire occurs according to the fire coordinates.
9. The high-low voltage power distribution cabinet with fireproof monitoring according to claim 8, wherein when the master control module recognizes that a fire exists in the monitoring video, the position where the fire occurs is judged, and the fire coordinates are output; the method for adjusting the spraying angle of the fire extinguishing cover (2) to the position where the fire extinguishing cover (2) is opposite to the position where the fire occurs by the adjusting piece according to the fire coordinates comprises the following steps:
intercepting a monitoring image from a monitoring video of the cable body (13);
establishing a coordinate system, and cutting a monitoring image to a preset reference point in the monitoring image to obtain a coordinate system origin; the joint of the preset reference point, the universal joint (10) and the support frame (3) is positioned on the same coordinate axis;
Acquiring fire coordinates (x, y) of a position where a fire occurs;
According to the formula Calculating an azimuth angle theta between the position where the fire occurs and the fire extinguishing cover (2);
the adjusting piece adjusts the spraying angle of the fire extinguishing cover (2) according to the azimuth angle theta.
10. A high-low voltage power distribution cabinet with fire protection monitoring function according to claim 1, wherein the alarm device is further used for alarming when a fire extinguishing instruction is sent to an upper computer, the alarm device comprises an audible and visual alarm (4), and the audible and visual alarm (4) is used for alarming through sound and visual when the fire extinguishing instruction is sent to the upper computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311501208.7A CN117767124B (en) | 2023-11-10 | 2023-11-10 | High-low voltage power distribution cabinet with fireproof monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311501208.7A CN117767124B (en) | 2023-11-10 | 2023-11-10 | High-low voltage power distribution cabinet with fireproof monitoring function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117767124A CN117767124A (en) | 2024-03-26 |
| CN117767124B true CN117767124B (en) | 2024-05-17 |
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