Real-time fire alarm system for power transmission lines

Abstract

The present invention relates to a real-time alarm system for fire in a power transmission line, comprising: a heat detection device for detecting the heat value of the environment where the power transmission line is erected, so as to output the real-time heat data; a regional analysis device for judging whether to send a fire detection success signal based on the fire intelligent analysis result; and an alarm execution device for executing a fire alarm action corresponding to the fire detection success signal when receiving the fire detection success signal. The real-time alarm system for fire in a power transmission line of the present invention can judge the image area matching the fire color imaging feature from the real-time filtered image corresponding to the environment where the power transmission line is erected according to the fire color imaging feature as the image area to be analyzed, analyze the image area to be analyzed to judge whether there is a fire, thereby completing the automatic alarm operation of the environment where the power transmission line is erected.

Description

Technical Field

[0001] The invention relates to the field of electric power, and in particular to a real-time fire alarm system for a power transmission line. Background Art

[0002] The transmission line is realized by using a transformer to step up the voltage of the electric energy generated by the generator, and then connecting it to the transmission line through control equipment such as circuit breakers. In terms of structural form, the transmission line is divided into overhead transmission lines and cable lines. Overhead transmission lines are composed of line towers, conductors, insulators, line hardware, guy wires, tower foundations, grounding devices, etc., and are erected above the ground. According to the nature of the transmitted current, power transmission is divided into AC transmission and DC transmission.

[0003] During the operation of the transmission line, if there is a fire in the environment where the transmission line pole is installed, the high temperature caused by the fire will cause hidden dangers and harm to various power facilities of the transmission line. At the same time, the further spread of the fire will cause the dangerous situation of the environment where the transmission line pole is installed to deteriorate. Therefore, it is necessary to conduct high-precision small-scale analysis of the fire and then conduct on-site alarm processing, so as to provide response time for the dangerous situation processing in the on-site environment.

[0004] The solutions for fire analysis in the prior art include:

[0005] CN116246412A discloses a method, system and medium for analyzing fire conditions in an integrated pipe gallery based on video image signals, the method comprising: obtaining a current video image collected by a monitoring device; identifying the current video image to determine whether a target point exists in a picture corresponding to the current video image, the target point being a point where a fire occurs; if so, obtaining a calibration point in the current video image; calculating the actual position of the target point based on the calibration point, and generating fire warning information based on the actual position of the target point.

[0006] CN115457423A discloses a flame and smoke detection method combined with efficient sampling enhancement, which adopts computer vision target detection technology, including S1: collecting flame and smoke images, and manually annotating to obtain a smoke and flame data set containing a boundary box; S2: preprocessing and data enhancement of the images in the smoke and flame data set obtained by S1; S3: designing an efficient sampling enhancement module; S4: building a network model including the efficient sampling enhancement module; S5: training the network model built by S4 and outputting the detection results. Summary of the invention

[0007] In order to solve the technical problems in the related fields, the present invention provides a real-time fire alarm system for a power transmission line, which can determine, according to the color imaging characteristics of the fire, an image area matching the color imaging characteristics of the fire from a real-time filtered image corresponding to the environment where the transmission line pole is located as the image area to be analyzed, analyze the image area to be analyzed to determine whether there is a fire, and when a fire detection success signal is received, execute a fire alarm action corresponding to the fire detection success signal, thereby completing the automatic alarm operation of the environment where the transmission line pole is located.

[0008] According to the present invention, a real-time fire alarm system for a power transmission line is provided, the system comprising:

[0009] A heat detection device is arranged on the transmission line erection pole body, and is used to detect the heat value of the environment where the transmission line erection pole body is located, so as to output the heat data in real time;

[0010] A trigger operation device, connected to the heat detection device, used to trigger a first operation signal when the received real-time heat data is greater than or equal to a set numerical threshold, and also used to trigger a second operation signal when the received real-time heat data is less than the set numerical threshold;

[0011] An adaptive monitor connected to the trigger operation device, and configured to perform visual monitoring processing on the environment where the transmission line erection pole is located upon receiving the first operation signal, so as to obtain a current monitoring image;

[0012] a multi-directional conversion device, connected to the adaptive monitor and comprising a dynamic processing device, a geometric correction device and a real-time filtering device, wherein the geometric correction device is respectively connected to the dynamic processing device and the real-time filtering device, and the dynamic processing device is also connected to the adaptive monitor, and is used to perform white balance processing based on a dynamic threshold on the received current monitoring image to obtain and output a corresponding dynamic processing image, the geometric correction device is used to perform geometric correction processing on the received dynamic processing image to obtain and output a corresponding geometric correction image, and the real-time filtering device is used to perform Gaussian high-pass filtering processing on the received geometric correction image to obtain and output a corresponding real-time filtered image;

[0013] A region analysis device, connected to the multi-directional conversion device and comprising a feature application unit, a grayscale analysis unit and a detection execution unit, wherein the grayscale analysis unit is respectively connected to the feature application unit and the detection execution unit, and the region analysis device is used to determine an image region matching the fire body color imaging feature from a real-time filtered image according to the fire body color imaging feature as the image region to be analyzed, detect each background pixel point from the real-time filtered image based on the grayscale value range corresponding to the background, calculate the number of background pixel points existing in the image region to be analyzed, and send a fire body detection failure signal when the number of background pixel points exceeds or equals to a set number limit, and send a fire body detection success signal when the number of background pixel points is less than the set number limit;

[0014] The alarm execution device is connected to the area analysis device and is used to execute a fire alarm action corresponding to the fire detection success signal when receiving the fire detection success signal.

[0015] The transmission line fire real-time alarm system of the present invention is intelligently designed and has a certain level of automation. Since it can judge the image area matching the fire color imaging feature from the real-time filtered image corresponding to the environment where the transmission line erection pole is located according to the fire color imaging feature as the image area to be analyzed, the image area to be analyzed is analyzed to determine whether there is a fire, thereby completing the automatic alarm operation of the environment where the transmission line erection pole is located. DETAILED DESCRIPTION

[0016] The implementation scheme of the real-time fire alarm system for power transmission lines of the present invention will be described in detail below.

[0017] First embodiment

[0018] According to a first embodiment of the present invention, a real-time fire alarm system for a power transmission line is shown, the system comprising:

[0019] A heat detection device is arranged on the transmission line erection pole body, and is used to detect the heat value of the environment where the transmission line erection pole body is located, so as to output the heat data in real time;

[0020] A trigger operation device, connected to the heat detection device, used to trigger a first operation signal when the received real-time heat data is greater than or equal to a set numerical threshold, and also used to trigger a second operation signal when the received real-time heat data is less than the set numerical threshold;

[0021] Specifically, the trigger operation device is connected to the heat detection device and is used to trigger a first operation signal when the received instant heat data is greater than or equal to a set numerical threshold, and is also used to trigger a second operation signal when the received instant heat data is less than the set numerical threshold. The trigger operation device includes a data receiving unit, a threshold comparison unit and a signal distribution unit, and the threshold comparison unit is respectively connected to the data receiving unit and the signal distribution unit;

[0022] An adaptive monitor connected to the trigger operation device, and configured to perform visual monitoring processing on the environment where the transmission line erection pole is located upon receiving the first operation signal, so as to obtain a current monitoring image;

[0023] a multi-directional conversion device, connected to the adaptive monitor and comprising a dynamic processing device, a geometric correction device and a real-time filtering device, wherein the geometric correction device is respectively connected to the dynamic processing device and the real-time filtering device, and the dynamic processing device is also connected to the adaptive monitor, and is used to perform white balance processing based on a dynamic threshold on the received current monitoring image to obtain and output a corresponding dynamic processing image, the geometric correction device is used to perform geometric correction processing on the received dynamic processing image to obtain and output a corresponding geometric correction image, and the real-time filtering device is used to perform Gaussian high-pass filtering processing on the received geometric correction image to obtain and output a corresponding real-time filtered image;

[0024] A region analysis device, connected to the multi-directional conversion device and comprising a feature application unit, a grayscale analysis unit and a detection execution unit, wherein the grayscale analysis unit is respectively connected to the feature application unit and the detection execution unit, and the region analysis device is used to determine an image region matching the fire body color imaging feature from a real-time filtered image according to the fire body color imaging feature as the image region to be analyzed, detect each background pixel point from the real-time filtered image based on the grayscale value range corresponding to the background, calculate the number of background pixel points existing in the image region to be analyzed, and send a fire body detection failure signal when the number of background pixel points exceeds or equals to a set number limit, and send a fire body detection success signal when the number of background pixel points is less than the set number limit;

[0025] an alarm execution device, connected to the area analysis device, and configured to execute a fire alarm action corresponding to the fire detection success signal upon receiving the fire detection success signal;

[0026] Wherein, the alarm execution device is further used to suspend the execution of the fire alarm action corresponding to the fire detection success signal when receiving the fire detection failure signal;

[0027] Wherein, the adaptive monitor is further used to temporarily suspend the visual monitoring process of the environment where the transmission line erection pole is located when receiving the second operation signal;

[0028] Among them, the regional analysis device is used to judge the image area matching the fire body color imaging feature from the real-time filtered image according to the fire body color imaging feature as the image area to be analyzed, and detect each background pixel point from the real-time filtered image based on the grayscale value range corresponding to the background, and calculate the number of background pixel points existing in the image area to be analyzed, including: the fire body color imaging feature is the numerical distribution interval of the red color channel corresponding to the fire body.

[0029] Second embodiment

[0030] According to a second embodiment of the present invention, a real-time fire alarm system for a power transmission line is shown, which may include:

[0031] A heat detection device is arranged on the transmission line erection pole body, and is used to detect the heat value of the environment where the transmission line erection pole body is located, so as to output the heat data in real time;

[0032] A trigger operation device, connected to the heat detection device, used to trigger a first operation signal when the received real-time heat data is greater than or equal to a set numerical threshold, and also used to trigger a second operation signal when the received real-time heat data is less than the set numerical threshold;

[0033] An adaptive monitor connected to the trigger operation device, and configured to perform visual monitoring processing on the environment where the transmission line erection pole is located upon receiving the first operation signal, so as to obtain a current monitoring image;

[0034] a multi-directional conversion device, connected to the adaptive monitor and comprising a dynamic processing device, a geometric correction device and a real-time filtering device, wherein the geometric correction device is respectively connected to the dynamic processing device and the real-time filtering device, and the dynamic processing device is also connected to the adaptive monitor, and is used to perform white balance processing based on a dynamic threshold on the received current monitoring image to obtain and output a corresponding dynamic processing image, the geometric correction device is used to perform geometric correction processing on the received dynamic processing image to obtain and output a corresponding geometric correction image, and the real-time filtering device is used to perform Gaussian high-pass filtering processing on the received geometric correction image to obtain and output a corresponding real-time filtered image;

[0035] A region analysis device, connected to the multi-directional conversion device and comprising a feature application unit, a grayscale analysis unit and a detection execution unit, wherein the grayscale analysis unit is respectively connected to the feature application unit and the detection execution unit, and the region analysis device is used to determine an image region matching the fire body color imaging feature from a real-time filtered image according to the fire body color imaging feature as the image region to be analyzed, detect each background pixel point from the real-time filtered image based on the grayscale value range corresponding to the background, calculate the number of background pixel points existing in the image region to be analyzed, and send a fire body detection failure signal when the number of background pixel points exceeds or equals to a set number limit, and send a fire body detection success signal when the number of background pixel points is less than the set number limit;

[0036] an alarm execution device, connected to the area analysis device, and configured to execute a fire alarm action corresponding to the fire detection success signal upon receiving the fire detection success signal;

[0037] An ASIC control chip is connected to the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device, respectively, and is used to provide configuration operations of working parameters for the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device in a time-sharing manner;

[0038] The ASIC control chip is respectively connected to the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device, and is used to provide the configuration operation of working parameters for the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device in a time-sharing manner, including: the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device share the same working parameter configuration interface;

[0039] Wherein, the dynamic processing device, the geometric correction device, the real-time filtering device and the area resolution device use different configuration address data;

[0040] Wherein, a parallel connection of a communication data link is established between each of the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device through a parallel data bus;

[0041] Among them, the parallel connection of the communication data link established between each of the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device through a parallel data bus includes: the parallel data bus is one of an 8-bit parallel data bus, a 16-bit parallel data bus and a 32-bit parallel data bus.

[0042] Third embodiment

[0043] According to the third embodiment of the present invention, a real-time fire alarm system for a power transmission line is shown, which may include:

[0044] A heat detection device is arranged on the transmission line erection pole body, and is used to detect the heat value of the environment where the transmission line erection pole body is located, so as to output the heat data in real time;

[0045] A trigger operation device, connected to the heat detection device, used to trigger a first operation signal when the received real-time heat data is greater than or equal to a set numerical threshold, and also used to trigger a second operation signal when the received real-time heat data is less than the set numerical threshold;

[0046] An adaptive monitor connected to the trigger operation device, and configured to perform visual monitoring processing on the environment where the transmission line erection pole is located upon receiving the first operation signal, so as to obtain a current monitoring image;

[0047] a multi-directional conversion device, connected to the adaptive monitor and comprising a dynamic processing device, a geometric correction device and a real-time filtering device, wherein the geometric correction device is respectively connected to the dynamic processing device and the real-time filtering device, and the dynamic processing device is also connected to the adaptive monitor, and is used to perform white balance processing based on a dynamic threshold on the received current monitoring image to obtain and output a corresponding dynamic processing image, the geometric correction device is used to perform geometric correction processing on the received dynamic processing image to obtain and output a corresponding geometric correction image, and the real-time filtering device is used to perform Gaussian high-pass filtering processing on the received geometric correction image to obtain and output a corresponding real-time filtered image;

[0048] A region analysis device, connected to the multi-directional conversion device and comprising a feature application unit, a grayscale analysis unit and a detection execution unit, wherein the grayscale analysis unit is respectively connected to the feature application unit and the detection execution unit, and the region analysis device is used to determine an image region matching the fire body color imaging feature from a real-time filtered image according to the fire body color imaging feature as the image region to be analyzed, detect each background pixel point from the real-time filtered image based on the grayscale value range corresponding to the background, calculate the number of background pixel points existing in the image region to be analyzed, and send a fire body detection failure signal when the number of background pixel points exceeds or equals to a set number limit, and send a fire body detection success signal when the number of background pixel points is less than the set number limit;

[0049] an alarm execution device, connected to the area analysis device, and configured to execute a fire alarm action corresponding to the fire detection success signal upon receiving the fire detection success signal;

[0050] A power support device, connected to the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device, respectively, for providing power distribution support of different working voltages for the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device in a time-sharing manner;

[0051] The power support device is respectively connected to the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device, and is used to provide power distribution support with different working voltages for the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device in a time-sharing manner, including: two or more devices with the same working voltage requirements among the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device use the same power supply line;

[0052] Wherein, the power support device is respectively connected to the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device, and is used to provide power distribution support with different working voltages for the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device in a time-sharing manner, and further includes: the power support device is an uninterruptible power supply device;

[0053] Wherein, the power support device is respectively connected to the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device, and is used to provide power distribution support with different working voltages for the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device in time-sharing, and further includes: providing different working voltages including 3.3V working voltage for the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device in time-sharing;

[0054] And wherein, the power support device is respectively connected to the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device, and is used to provide power distribution support with different working voltages for the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device in a time-sharing manner, and also includes: providing different working voltages including 5V working voltage for the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device in a time-sharing manner.

[0055] In addition, in the real-time alarm system for fire in the transmission line, an adaptive monitor is connected to the trigger operation device and is used to perform visual monitoring processing on the environment where the transmission line pole is located when the first operation signal is received to obtain a current monitoring image, including: the adaptive monitor includes a trigger execution switch, an imaging lens and an image sensor, the image sensor is connected to the trigger execution switch, and the imaging lens is arranged in front of the image sensor.

[0056] The present invention has the following three significant substantive features:

[0057] First, according to the color imaging feature of the fire body, an image area matching the color imaging feature of the fire body is determined from the real-time filtered image as the image area to be analyzed, wherein the color imaging feature of the fire body is the numerical distribution interval of the red color channel corresponding to the fire body;

[0058] Second, each background pixel is detected from the real-time filtered image based on the grayscale value range corresponding to the background, the number of background pixel points existing in the image area to be analyzed is calculated, and when the number of background pixel points exceeds or equals to the set number limit, a fire body detection failure signal is issued, and when the number of background pixel points is less than the set number limit, a fire body detection success signal is issued;

[0059] The third part: when a fire detection success signal is received, the fire alarm action corresponding to the fire detection success signal is executed, and when a fire detection failure signal is received, the fire alarm action corresponding to the fire detection success signal is suspended, thereby completing the automatic alarm operation of the environment where the transmission line pole is located.

[0060] Although the present invention has been described by way of preferred embodiments, the present invention is not limited to the specific examples given, and other embodiments and modifications may be devised by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A real-time fire alarm system for power transmission lines, characterized in that: The system comprises: A heat detection device is arranged on the transmission line erection pole body, and is used to detect the heat value of the environment where the transmission line erection pole body is located, so as to output the heat data in real time; A trigger operation device, connected to the heat detection device, used to trigger a first operation signal when the received real-time heat data is greater than or equal to a set numerical threshold, and also used to trigger a second operation signal when the received real-time heat data is less than the set numerical threshold; An adaptive monitor connected to the trigger operation device, and configured to perform visual monitoring processing on the environment where the transmission line erection pole is located upon receiving the first operation signal, so as to obtain a current monitoring image; a multi-directional conversion device, connected to the adaptive monitor and comprising a dynamic processing device, a geometric correction device and a real-time filtering device, wherein the geometric correction device is respectively connected to the dynamic processing device and the real-time filtering device, and the dynamic processing device is also connected to the adaptive monitor, and is used to perform white balance processing based on a dynamic threshold on the received current monitoring image to obtain and output a corresponding dynamic processing image, the geometric correction device is used to perform geometric correction processing on the received dynamic processing image to obtain and output a corresponding geometric correction image, and the real-time filtering device is used to perform Gaussian high-pass filtering processing on the received geometric correction image to obtain and output a corresponding real-time filtered image; A region analysis device, connected to the multi-directional conversion device and comprising a feature application unit, a grayscale analysis unit and a detection execution unit, wherein the grayscale analysis unit is respectively connected to the feature application unit and the detection execution unit, and the region analysis device is used to determine an image region matching the fire body color imaging feature from a real-time filtered image according to the fire body color imaging feature as the image region to be analyzed, detect each background pixel point from the real-time filtered image based on the grayscale value range corresponding to the background, calculate the number of background pixel points existing in the image region to be analyzed, and send a fire body detection failure signal when the number of background pixel points exceeds or equals to a set number limit, and send a fire body detection success signal when the number of background pixel points is less than the set number limit; an alarm execution device, connected to the area analysis device, and configured to execute a fire alarm action corresponding to the fire detection success signal upon receiving the fire detection success signal; Wherein, the alarm execution device is also used to suspend the execution of the fire alarm action corresponding to the fire detection success signal when receiving the fire detection failure signal.

2. The power transmission line fire real-time alarm system according to claim 1, characterized in that: The adaptive monitor is also used to temporarily suspend the visual monitoring process of the environment where the transmission line erection pole is located when receiving the second operation signal; Among them, the regional analysis device is used to judge the image area matching the fire body color imaging feature from the real-time filtered image according to the fire body color imaging feature as the image area to be analyzed, and detect each background pixel point from the real-time filtered image based on the grayscale value range corresponding to the background, and calculate the number of background pixel points existing in the image area to be analyzed, including: the fire body color imaging feature is the numerical distribution interval of the red color channel corresponding to the fire body.

3. The power transmission line fire real-time alarm system according to claim 2, characterized in that: The system further comprises: An ASIC control chip is connected to the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device, respectively, and is used to provide configuration operations of working parameters for the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device in a time-sharing manner; Among them, the ASIC control chip is connected to the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device respectively, and is used to provide the configuration operation of working parameters for the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device in a time-sharing manner, including: the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device share the same working parameter configuration interface.

4. The power transmission line fire real-time alarm system according to claim 3, characterized in that: The dynamic processing device, the geometric correction device, the real-time filtering device and the area resolution device use different configuration address data.

5. The power transmission line fire real-time alarm system according to claim 3, characterized in that: Establishing parallel connections of communication data links between the dynamic processing device, the geometric correction device, the real-time filtering device, and the regional resolution device through parallel data buses; Among them, the parallel connection of the communication data link established between each of the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device through a parallel data bus includes: the parallel data bus is one of an 8-bit parallel data bus, a 16-bit parallel data bus and a 32-bit parallel data bus.

6. The power transmission line fire real-time alarm system according to claim 2, characterized in that: The system further comprises: A power support device, connected to the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device, respectively, for providing power distribution support of different working voltages for the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device in a time-sharing manner; Among them, the power support device is respectively connected to the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device, and is used to provide power distribution support with different working voltages for the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device in a time-sharing manner, including: among the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device, two or more devices with the same working voltage requirements use the same power supply line.

7. The power transmission line fire real-time alarm system according to claim 6, characterized in that: The power support device is respectively connected to the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device, and is used to provide power distribution support with different working voltages for the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device in a time-sharing manner, and also includes: the power support device is an uninterruptible power supply device.

8. The power transmission line fire real-time alarm system according to claim 7, characterized in that: The power support device is respectively connected to the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device, and is used to provide power distribution support with different working voltages for the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device in a time-sharing manner, and also includes: providing different working voltages including 3.3V working voltage for the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device in a time-sharing manner.

9. The power transmission line fire real-time alarm system according to claim 8, characterized in that: The power support device is respectively connected to the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device, and is used to provide power distribution support with different working voltages for the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device in a time-sharing manner, and also includes: providing different working voltages including 5V working voltage for the dynamic processing device, the geometric correction device, the real-time filtering device and the regional resolution device in a time-sharing manner.