An intelligent alarm system for temperature measurement of coal handling trestle in power plants

Abstract

The present invention belongs to the technical field of coal conveyor trestles in power plants, and specifically relates to an intelligent temperature measurement alarm system for coal conveyor trestles in power plants. Through multi-level data acquisition, this invention can efficiently locate areas of temperature anomalies, reducing the risk of false alarms and missed alarms. By leveraging regional temperature, ambient temperature, and thermal radiation compensation information, it can effectively correct measurement errors caused by environmental conditions or equipment deviations, improving the accuracy and reliability of temperature detection. Each module functions independently, facilitating upgrades or expansions. The system can add new monitoring modules or linkage control modules based on actual needs. Temperature anomaly alarm information can be linked to an intelligent management platform to record abnormal data and generate trend analysis reports, providing a scientific basis for equipment maintenance and the safe operation of the coal conveyor trestles.

Description

Technical Field

[0001] The invention belongs to the technical field of coal conveying trestle in power plants, and in particular relates to an image temperature measurement intelligent alarm system for coal conveying trestle in power plants. Background Art

[0002] In the power industry, power plant coal handling trestles are a crucial component of coal-fired power plants, and their safe and efficient operation is crucial for ensuring power supply. However, the coal combustion process generates large amounts of coal dust and pulverized coal. These substances accumulate within the trestles, posing a fire hazard and potentially causing wear and corrosion to equipment, shortening its service life. Furthermore, spontaneous combustion of pulverized coal is a significant safety hazard. If not promptly detected and addressed, the occurrence of open flames can lead to explosions, resulting in significant economic losses to the trestles and the company, while also severely harming the surrounding environment.

[0003] Traditional temperature monitoring methods, such as heat and smoke detectors, have limitations in their application within coal handling trestles. Due to interference from coal dust and pulverized coal, these detectors may not accurately and real-timely detect temperature changes in key areas such as cable trays and coal conveyor belts. Therefore, a more sensitive, accurate, and rapid temperature measurement method is needed to ensure the safe operation of coal handling trestles.

[0004] In recent years, with the rapid development of video surveillance and artificial intelligence technologies, image temperature measurement technology has been gradually applied to various fields. In power plant coal handling trestle, high-definition cameras are installed to capture real-time video images of the monitored area. These images are then processed and analyzed using advanced image processing and recognition technologies to enable real-time monitoring of temperature changes within the trestle.

[0005] However, current image-based temperature measurement systems for coal handling trestles still have shortcomings. Existing systems are weak in multi-source data fusion and anomaly analysis, making it difficult to comprehensively consider the impact of various factors on temperature measurement results. This can lead to erroneous alarm signals and reduce the efficiency of the coal handling system. Summary of the Invention

[0006] The purpose of the present invention is to provide an intelligent alarm system for temperature measurement using images of coal handling trestle in power plants, which can realize efficient detection and alarm of temperature anomalies, not only improving the accuracy and reliability of temperature monitoring, but also enhancing the scalability and linkage of the system, providing scientific guarantee for the safe operation of the coal handling trestle.

[0007] The technical solutions adopted by the present invention are as follows:

[0008] An intelligent alarm system for temperature measurement of coal handling trestle in a power plant, comprising:

[0009] A spatial layout module is used to obtain spatial layout data of the coal conveyor trestle and obtain multiple temperature detection areas based on the spatial layout data;

[0010] an abnormal area module, configured to obtain temperature distribution image data within each temperature detection area, obtain regional temperature information of the corresponding temperature detection area based on the temperature distribution image data, determine whether the regional temperature information meets a first preset condition, and if not, determine that the temperature within the temperature monitoring area is abnormal and mark it as a temperature abnormality detection area;

[0011] The regional temperature module is used to construct a detection period, obtain temperature image data of each temperature detection area within the detection period, and obtain regional temperature compensation information of the corresponding temperature detection area based on the temperature image data;

[0012] The ambient temperature module is used to obtain the ambient temperature data of each temperature detection area during the detection period, and obtain the ambient temperature compensation information of the corresponding temperature detection area according to the ambient temperature data;

[0013] The temperature thermal radiation module is used to obtain the temperature thermal radiation image data of each temperature detection area within the detection period, and obtain the temperature thermal radiation compensation information of the corresponding temperature detection area according to the temperature thermal radiation image data;

[0014] The temperature alarm module is used to obtain the image temperature anomaly value of the temperature anomaly detection area based on the regional temperature compensation information, the ambient temperature compensation information, the temperature thermal radiation compensation information and the regional temperature information, and determine whether the image temperature anomaly value meets the second preset condition. If so, the image temperature anomaly value obtains the corresponding temperature alarm information and issues an alarm message.

[0015] In a preferred embodiment, the abnormal area module includes a temperature distribution image unit, a coal conveyor trestle structure image unit, a coal conveyor trestle area unit, a coal conveyor trestle area temperature unit, an area temperature marking unit, and an area temperature judgment unit, wherein:

[0016] A temperature distribution image unit, used to obtain temperature distribution image data in each temperature detection area;

[0017] A coal conveyor trestle structure image unit is used to obtain coal conveyor trestle structure image data;

[0018] The coal conveyor bridge area unit is used to obtain coal conveyor bridge area image information based on the coal conveyor bridge structure image data;

[0019] A coal conveyor bridge area temperature unit is used to obtain a plurality of regional temperature vectors within the coal conveyor bridge area in each temperature distribution image data according to the coal conveyor bridge area image information;

[0020] A regional temperature marking unit, configured to obtain regional temperature values ​​of corresponding temperature detection regions according to a plurality of regional temperature vectors and mark the values ​​as regional temperature information;

[0021] The regional temperature judgment unit is used to judge whether the regional temperature information meets the first preset condition. If not, it is determined that the temperature in the temperature monitoring area is abnormal and marked as a temperature abnormality detection area.

[0022] In a preferred embodiment, the regional temperature judgment unit includes an abnormal threshold unit and an abnormal region judgment unit, wherein:

[0023] Abnormal threshold unit, used to obtain regional temperature threshold;

[0024] An abnormal area judgment unit is used to judge whether the area temperature value exceeds the area temperature threshold;

[0025] If the regional temperature value exceeds the regional temperature threshold, the temperature monitoring area within the coal handling trestle area in the temperature distribution image data is determined to be abnormal in temperature and marked as a temperature abnormality detection area.

[0026] In a preferred embodiment, the regional temperature module includes a time period construction unit, a temperature image unit, a temperature image vector unit, a regional temperature compensation unit, a regional temperature compensation table unit, a target regional temperature unit, and a regional compensation information unit, wherein:

[0027] A time period construction unit, used for constructing a detection time period;

[0028] A temperature image unit is used to obtain temperature image data of each temperature detection area within a detection period;

[0029] A temperature image vector unit, configured to obtain a plurality of temperature image vectors in a coal handling trestle area in a corresponding temperature detection area according to the temperature image data;

[0030] A regional temperature compensation unit, configured to obtain a regional temperature compensation value of a corresponding temperature detection region according to a plurality of temperature image vectors;

[0031] A regional temperature compensation table unit is used to obtain a regional temperature compensation table, wherein the regional temperature compensation table includes a plurality of regional temperature compensation intervals and regional temperature compensation information corresponding to each regional temperature compensation interval;

[0032] A target area temperature unit is used to obtain a corresponding target area temperature compensation interval according to the area temperature compensation value;

[0033] The regional compensation information unit is used to obtain corresponding regional temperature compensation information from the regional temperature compensation table according to the target regional temperature compensation interval.

[0034] In a preferred solution, the time period construction unit includes an intermediate time unit, an area information table unit, a duration unit, a head and tail positioning unit, and a time period positioning unit, wherein:

[0035] The intermediate time unit is used to obtain the time node marked as the temperature anomaly detection area and mark it as the intermediate time of the detection period;

[0036] A region information table unit is used to obtain a region information table, wherein the region information table includes a plurality of region temperature information and a detection time corresponding to each region temperature information;

[0037] The duration unit is used to obtain the corresponding detection duration from the regional information table according to the regional temperature information;

[0038] The head and tail positioning unit is used to obtain the start time and end time of the detection period according to the middle time of the detection period and the detection duration;

[0039] The time period positioning unit is used to obtain the detection time period according to the start time and end time of the detection time period.

[0040] In a preferred solution, the ambient temperature module includes an ambient temperature unit, an ambient vector unit, and an ambient compensation unit, wherein:

[0041] An ambient temperature unit is used to obtain ambient temperature data of each temperature detection area during the detection period;

[0042] An environmental vector unit, configured to obtain a plurality of environmental temperature vectors in a coal handling trestle area in a corresponding temperature detection area according to the environmental temperature data;

[0043] The environmental compensation unit is used to obtain the environmental temperature compensation value of the coal conveying trestle area in the corresponding temperature detection area according to multiple environmental temperature vectors, and mark it as environmental temperature compensation information.

[0044] In a preferred embodiment, the temperature thermal radiation module includes a thermal radiation data unit, a thermal radiation image unit, a coordinate system unit, an edge contour unit, an area unit, a thermal radiation compensation table unit, a target thermal radiation unit, and a thermal radiation compensation information unit, wherein:

[0045] A thermal radiation data unit is used to obtain temperature thermal radiation image data of each temperature detection area within a detection period;

[0046] A thermal radiation image unit, configured to obtain thermal radiation image information of a coal handling trestle area in a corresponding temperature detection area according to the temperature thermal radiation image data;

[0047] A coordinate system unit, used for constructing a plane rectangular coordinate system according to thermal radiation image information;

[0048] An edge contour unit is used to obtain the coordinates of multiple thermal radiation edge contour inflection points in the corresponding coal handling trestle area according to a plane rectangular coordinate system;

[0049] An area unit, used to obtain the heat radiation area according to the coordinates of a plurality of heat radiation edge contour inflection points;

[0050] A thermal radiation compensation table unit, configured to obtain a thermal radiation compensation table, wherein the thermal radiation compensation table includes a plurality of thermal radiation interval areas and temperature thermal radiation compensation information corresponding to each thermal radiation interval area;

[0051] A target heat radiation unit is used to obtain a corresponding target heat radiation interval area according to the heat radiation area;

[0052] The thermal radiation compensation information unit is used to obtain corresponding temperature thermal radiation compensation information from the thermal radiation compensation table according to the target thermal radiation interval area.

[0053] In a preferred embodiment, the temperature alarm module includes a regional compensation extraction unit, an environmental compensation extraction unit, a thermal radiation extraction unit, an abnormality mark extraction unit, a temperature abnormality unit, and an abnormality judgment unit, wherein:

[0054] A regional compensation extraction unit is used to obtain a regional temperature compensation value corresponding to the temperature anomaly detection area according to the regional temperature compensation information, and mark it as an abnormal regional temperature compensation value;

[0055] An environmental compensation extraction unit is used to obtain an environmental temperature compensation value corresponding to the temperature anomaly detection area according to the environmental temperature compensation information, and mark it as an abnormal area environmental temperature compensation value;

[0056] a thermal radiation extraction unit, configured to obtain a thermal radiation area corresponding to the temperature anomaly detection area according to the temperature thermal radiation compensation information, and mark the thermal radiation area as the abnormal area thermal radiation area;

[0057] An abnormality mark extraction unit is used to obtain the regional temperature value of the temperature abnormality detection area and mark it as the abnormal regional temperature value;

[0058] A temperature anomaly unit is used to obtain an image temperature anomaly value of a corresponding temperature anomaly detection area according to the temperature compensation value of the abnormal area, the ambient temperature compensation value of the abnormal area, the heat radiation area of ​​the abnormal area, and the temperature value of the abnormal area;

[0059] The abnormality judgment unit is used to judge whether the image temperature abnormal value meets the second preset condition. If not, the image temperature abnormal value obtains the corresponding temperature alarm information and issues an alarm message

[0060] In a preferred embodiment, the abnormality judgment unit includes a temperature abnormality table unit, an abnormal value judgment unit and an alarm unit, wherein:

[0061] A temperature anomaly table unit is used to obtain a temperature anomaly table, wherein the temperature anomaly table includes a plurality of image temperature anomaly values ​​and temperature alarm information corresponding to each image temperature anomaly value;

[0062] An abnormal value judgment unit, used to judge whether the abnormal temperature value of the image is in the temperature abnormality table;

[0063] The alarm unit is used to obtain corresponding temperature alarm information from the temperature anomaly table according to the image temperature anomaly value and issue an alarm message if the image temperature anomaly value is in the temperature anomaly table.

[0064] And, an intelligent alarm terminal for image temperature measurement of a coal handling trestle in a power plant, comprising:

[0065] one or more processors;

[0066] a storage device having one or more programs stored thereon;

[0067] When one or more programs are executed by one or more processors, the one or more processors implement an intelligent alarm system for temperature measurement of coal conveyor bridges in power plants.

[0068] The technical effects achieved by the present invention are:

[0069] The present invention, through multi-level data collection, can efficiently locate temperature abnormality areas, reduce the risks of false alarms and missed alarms, and with the help of regional temperature, ambient temperature and thermal radiation compensation information, can effectively correct measurement errors caused by environmental conditions or equipment deviations, and improve the accuracy and reliability of temperature detection. Each module has independent functions and is easy to upgrade or expand. The system can add new monitoring modules or linkage control modules according to actual needs. The temperature abnormality alarm information can be linked with the intelligent management platform to record abnormal data and generate trend analysis reports, providing a scientific basis for equipment maintenance and the safe operation of the coal conveyor trestle. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Figure 1 It is a system module diagram provided by the present invention;

[0071] Figure 2 It is a flow chart provided by the present invention. DETAILED DESCRIPTION

[0072] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0073] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0074] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive of other embodiments.

[0075] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the schematic diagrams are only examples and should not limit the scope of protection of the present invention.

[0076] Please see the attached Figure 1 and Figure 2 As shown, an intelligent alarm system for temperature measurement of coal handling trestle images in power plants is provided, comprising:

[0077] A spatial layout module is used to obtain spatial layout data of the coal conveyor trestle and obtain multiple temperature detection areas based on the spatial layout data;

[0078] an abnormal area module, configured to obtain temperature distribution image data within each temperature detection area, obtain regional temperature information of the corresponding temperature detection area based on the temperature distribution image data, determine whether the regional temperature information meets a first preset condition, and if not, determine that the temperature within the temperature monitoring area is abnormal and mark it as a temperature abnormality detection area;

[0079] The regional temperature module is used to construct a detection period, obtain temperature image data of each temperature detection area within the detection period, and obtain regional temperature compensation information of the corresponding temperature detection area based on the temperature image data;

[0080] The ambient temperature module is used to obtain the ambient temperature data of each temperature detection area during the detection period, and obtain the ambient temperature compensation information of the corresponding temperature detection area according to the ambient temperature data;

[0081] The temperature thermal radiation module is used to obtain the temperature thermal radiation image data of each temperature detection area within the detection period, and obtain the temperature thermal radiation compensation information of the corresponding temperature detection area according to the temperature thermal radiation image data;

[0082] The temperature alarm module is used to obtain the image temperature anomaly value of the temperature anomaly detection area based on the regional temperature compensation information, the ambient temperature compensation information, the temperature thermal radiation compensation information and the regional temperature information, and determine whether the image temperature anomaly value meets the second preset condition. If so, the image temperature anomaly value obtains the corresponding temperature alarm information and issues an alarm message.

[0083] As mentioned above, the spatial layout module determines the location and range of multiple temperature detection areas by obtaining the spatial layout data of the coal conveyor trestle, and clarifies the monitoring target of each area. The abnormal area module uses infrared or thermal imaging equipment to obtain temperature distribution image data, extracts the regional temperature information of each temperature detection area, and compares it with the first preset condition (such as the upper limit of temperature, the amplitude of change, etc.) to determine whether the temperature is abnormal. For abnormal areas, they are marked as temperature abnormality detection areas. The regional temperature module collects the temperature image data of each area within the specified detection period, and calculates the compensation information of the regional temperature based on these data. The ambient temperature module obtains the external ambient temperature data within the detection period (for example, through meteorological sensors or environmental monitoring systems), and calculates the compensation amount of the ambient temperature to the regional temperature data. The temperature thermal radiation module captures the temperature thermal radiation image data of each detection area, and calculates the thermal radiation compensation information through the image. The temperature alarm module combines the regional temperature compensation information, the ambient temperature compensation information and the temperature thermal radiation compensation information. Information, calculate the image temperature anomaly value of the abnormal area, and determine whether to trigger the alarm mechanism according to the second preset condition (such as temperature anomaly threshold, alarm triggering rules, etc.). If the anomaly reaches the alarm condition, an alarm message will be issued, and other equipment (such as security system or fire protection system) can be linked to handle it in time. Through multi-level data collection (spatial layout, regional temperature, ambient temperature, thermal radiation), the temperature anomaly area can be efficiently located to reduce the risk of false alarms and missed alarms. With the help of regional temperature, ambient temperature and thermal radiation compensation information, the measurement error caused by environmental conditions or equipment deviation can be effectively corrected to improve the accuracy and reliability of temperature detection. Each module has independent functions and is easy to upgrade or expand. The system can add new monitoring modules (such as smoke detection module) or linkage control modules (such as fire linkage control) according to actual needs. The temperature anomaly alarm information can be linked with the intelligent management platform to record abnormal data and generate trend analysis reports, providing a scientific basis for equipment maintenance and safe operation of the coal transport trestle.

[0084] In a preferred embodiment, the abnormal area module includes a temperature distribution image unit, a coal conveyor trestle structure image unit, a coal conveyor trestle area unit, a coal conveyor trestle area temperature unit, a regional temperature marking unit and a regional temperature judgment unit, wherein:

[0085] A temperature distribution image unit, used to obtain temperature distribution image data in each temperature detection area;

[0086] A coal conveyor trestle structure image unit is used to obtain coal conveyor trestle structure image data;

[0087] The coal conveyor bridge area unit is used to obtain coal conveyor bridge area image information based on the coal conveyor bridge structure image data;

[0088] A coal conveyor bridge area temperature unit is used to obtain a plurality of regional temperature vectors within the coal conveyor bridge area in each temperature distribution image data according to the coal conveyor bridge area image information;

[0089] A regional temperature marking unit, configured to obtain regional temperature values ​​of corresponding temperature detection regions according to a plurality of regional temperature vectors and mark the values ​​as regional temperature information;

[0090] The regional temperature judgment unit is used to judge whether the regional temperature information meets the first preset condition. If not, it is determined that the temperature in the temperature monitoring area is abnormal and marked as a temperature abnormality detection area.

[0091] As mentioned above, the temperature distribution image unit obtains the temperature distribution image data of each temperature detection area through infrared thermal imaging equipment or other temperature monitoring equipment. The coal conveyor trestle structure image unit obtains the structural image data of the coal conveyor trestle, such as the shape, size and partition information of the trestle, and combines the actual structural information to ensure that the division of the temperature detection area corresponds to the physical layout of the trestle, avoiding errors in data acquisition. The coal conveyor trestle area unit extracts the regional image information of the coal conveyor trestle based on the structural image data, and clarifies the boundaries and positions of each area. The coal conveyor trestle area temperature unit extracts multiple temperature vectors of the coal conveyor trestle area (such as temperature point values ​​or regional temperature averages) in each temperature distribution image. The regional temperature marking unit calculates the regional temperature value of each temperature detection area based on multiple regional temperature vectors. The calculation formula of the regional temperature value is: , where Q represents the regional temperature value, i represents the number of multiple regional temperature vectors, i=1,2,3…n, It is expressed as the i-th regional temperature vector, and the calculation result is marked as regional temperature information. The regional temperature judgment unit compares the regional temperature information with the first preset condition (such as the temperature upper limit, temperature difference threshold, etc.). If the regional temperature information does not meet the preset condition (such as the temperature is too high or the fluctuation is abnormal), the regional temperature is determined to be abnormal and marked as a temperature anomaly detection area. By combining the temperature distribution image and the coal conveyor trestle structure image data, it ensures that the temperature detection accurately corresponds to the actual physical area, avoids misjudgment or missed judgment, can accurately locate the abnormal area, reduce interference with non-abnormal areas, can dynamically respond to temperature changes, detect abnormal situations in time, and improve the real-time performance and sensitivity of the system.

[0092] In a preferred embodiment, the regional temperature judgment unit includes an abnormal threshold unit and an abnormal region judgment unit, wherein:

[0093] Abnormal threshold unit, used to obtain regional temperature threshold;

[0094] An abnormal area judgment unit is used to judge whether the area temperature value exceeds the area temperature threshold;

[0095] If the regional temperature value exceeds the regional temperature threshold, the temperature monitoring area within the coal handling trestle area in the temperature distribution image data is determined to be abnormal in temperature and marked as a temperature abnormality detection area.

[0096] As mentioned above, the abnormal threshold unit obtains the regional temperature threshold of each temperature monitoring area according to the preset safe operation standard or dynamic environmental conditions. The regional temperature threshold can be a fixed value (such as the maximum safe temperature of the equipment) or a dynamic value (such as a threshold adjusted according to the ambient temperature) to ensure the scientific nature and applicability of the threshold setting. The abnormal area judgment unit compares the actual regional temperature value of each temperature detection area with the corresponding regional temperature threshold. If the regional temperature value exceeds the regional temperature threshold, the temperature of the area is determined to be abnormal, and the abnormal area is marked as a temperature abnormality detection area, and its temperature distribution image data is included in the key monitoring and processing range. The area is highlighted by color coding, alarm signals or other means, which can quickly and accurately identify temperature abnormal areas, ensuring that temperature abnormal areas can be identified and processed as soon as possible.

[0097] In a preferred embodiment, the regional temperature module includes a time period construction unit, a temperature image unit, a temperature image vector unit, a regional temperature compensation unit, a regional temperature compensation table unit, a target regional temperature unit, and a regional compensation information unit, wherein:

[0098] A time period construction unit, used for constructing a detection time period;

[0099] A temperature image unit is used to obtain temperature image data of each temperature detection area within a detection period;

[0100] A temperature image vector unit, configured to obtain a plurality of temperature image vectors in a coal handling trestle area in a corresponding temperature detection area according to the temperature image data;

[0101] A regional temperature compensation unit, configured to obtain a regional temperature compensation value of a corresponding temperature detection region according to a plurality of temperature image vectors;

[0102] A regional temperature compensation table unit is used to obtain a regional temperature compensation table, wherein the regional temperature compensation table includes a plurality of regional temperature compensation intervals and regional temperature compensation information corresponding to each regional temperature compensation interval;

[0103] A target area temperature unit is used to obtain a corresponding target area temperature compensation interval according to the area temperature compensation value;

[0104] The regional compensation information unit is used to obtain corresponding regional temperature compensation information from the regional temperature compensation table according to the target regional temperature compensation interval.

[0105] As mentioned above, the time period construction unit constructs the detection time period (for example, divided into minutes, hours or other time intervals) according to the operating characteristics of the coal conveyor trestle and the temperature monitoring requirements. The detection time period is used to define the time range of temperature monitoring to ensure the continuity and timeliness of data collection and analysis. The temperature image unit obtains the temperature image data within the detection period to reflect the temperature distribution of each temperature detection area. The temperature image vector unit converts the temperature image data into multiple temperature image vectors to facilitate the quantitative analysis of the temperature characteristics in each area. The regional temperature compensation unit calculates the regional temperature compensation value of each temperature detection area through multiple temperature image vectors. The calculation formula of the regional temperature compensation value is: , where Y represents the regional temperature compensation value, h represents the number of multiple temperature image vectors, h = 1, 2, 3…m, It is represented as the hth temperature image vector. The regional temperature compensation table unit stores the predefined regional temperature compensation interval and the corresponding compensation information. The target regional temperature unit matches the corresponding target regional temperature compensation interval according to the calculated regional temperature compensation value. The regional compensation information unit extracts the corresponding compensation information from the regional temperature compensation table according to the target regional temperature compensation interval. As the final regional temperature compensation information, dynamic temperature monitoring can be realized to ensure that temperature anomalies can be captured and processed in a short time. The design of the regional temperature compensation table supports the adaptation of multiple scenarios and can flexibly adjust the compensation interval and compensation information according to the specific environment and operating conditions of the coal conveyor trestle.

[0106] In a preferred embodiment, the time period construction unit includes an intermediate time unit, an area information table unit, a duration unit, a head and tail positioning unit, and a time period positioning unit, wherein:

[0107] The intermediate time unit is used to obtain the time node marked as the temperature anomaly detection area and mark it as the intermediate time of the detection period;

[0108] A region information table unit is used to obtain a region information table, wherein the region information table includes a plurality of region temperature information and a detection time corresponding to each region temperature information;

[0109] The duration unit is used to obtain the corresponding detection duration from the regional information table according to the regional temperature information;

[0110] The head and tail positioning unit is used to obtain the start time and end time of the detection period according to the middle time of the detection period and the detection duration;

[0111] The time period positioning unit is used to obtain the detection time period according to the start time and end time of the detection time period.

[0112] As mentioned above, during the temperature monitoring process, when a certain area is marked as a temperature anomaly detection area, the intermediate time unit records the time node when the anomaly occurs and marks it as the middle time of the detection period. The regional information table unit pre-stores the regional information table, which contains multiple regional temperature information and their corresponding detection durations. The regional information table provides a time reference for temperature detection in different areas to ensure the scientificity and rationality of the time period demarcation. The duration unit matches and extracts the corresponding detection duration from the regional information table based on the regional temperature information of the temperature anomaly detection area. The detection duration is used to define the time range around the middle time. The head and tail positioning units calculate the start time and end time of the detection period based on the middle time and detection duration of the detection period. The time period positioning unit uses the obtained start time and end time. The system finally determines the detection period, which can quickly locate the core time point of the temperature anomaly, ensure that the demarcation of the detection period is targeted, and can flexibly adjust the duration of the detection period according to the characteristics of different areas to adapt to the complex operating environment of the coal conveyor trestle.

[0113] In a preferred embodiment, the ambient temperature module includes an ambient temperature unit, an ambient vector unit, and an ambient compensation unit, wherein:

[0114] An ambient temperature unit is used to obtain ambient temperature data of each temperature detection area during the detection period;

[0115] An environmental vector unit, configured to obtain a plurality of environmental temperature vectors in a coal handling trestle area in a corresponding temperature detection area according to the environmental temperature data;

[0116] The environmental compensation unit is used to obtain the environmental temperature compensation value of the coal conveying trestle area in the corresponding temperature detection area according to multiple environmental temperature vectors, and mark it as environmental temperature compensation information.

[0117] As mentioned above, during the detection period, the ambient temperature data of each temperature detection area is obtained through the ambient temperature unit. The ambient temperature data includes real-time temperature information around the coal handling trestle area. The ambient vector unit generates multiple ambient temperature vectors based on the obtained ambient temperature data to describe the ambient temperature distribution at different positions in the temperature detection area. The ambient compensation unit calculates the ambient temperature compensation value in the temperature detection area based on the multiple ambient temperature vectors generated by the ambient vector unit. The calculation formula of the ambient temperature compensation value is: , where X represents the ambient temperature compensation value, d represents the number of the ambient temperature vector, d=1,2,3…q, Expressed as the maximum value of the ambient temperature vector, Expressed as the minimum value of the ambient temperature vector, It is represented as the d-th ambient temperature vector. After the calculation is completed, the compensation value is marked as the ambient temperature compensation information, which can accurately compensate the ambient temperature of the temperature detection area, eliminate the interference of the external environment on the judgment of temperature anomalies, convert the ambient temperature data into multiple vectors, refine the spatial distribution analysis of the ambient temperature, and improve the accuracy of the compensation calculation.

[0118] In a preferred embodiment, the temperature thermal radiation module includes a thermal radiation data unit, a thermal radiation image unit, a coordinate system unit, an edge contour unit, an area unit, a thermal radiation compensation table unit, a target thermal radiation unit, and a thermal radiation compensation information unit, wherein:

[0119] A thermal radiation data unit is used to obtain temperature thermal radiation image data of each temperature detection area within a detection period;

[0120] A thermal radiation image unit, configured to obtain thermal radiation image information of a coal handling trestle area in a corresponding temperature detection area according to the temperature thermal radiation image data;

[0121] A coordinate system unit, used for constructing a plane rectangular coordinate system according to thermal radiation image information;

[0122] An edge contour unit is used to obtain the coordinates of multiple thermal radiation edge contour inflection points in the corresponding coal handling trestle area according to a plane rectangular coordinate system;

[0123] An area unit, used to obtain the heat radiation area according to the coordinates of a plurality of heat radiation edge contour inflection points;

[0124] A thermal radiation compensation table unit, configured to obtain a thermal radiation compensation table, wherein the thermal radiation compensation table includes a plurality of thermal radiation interval areas and temperature thermal radiation compensation information corresponding to each thermal radiation interval area;

[0125] A target heat radiation unit is used to obtain a corresponding target heat radiation interval area according to the heat radiation area;

[0126] The thermal radiation compensation information unit is used to obtain corresponding temperature thermal radiation compensation information from the thermal radiation compensation table according to the target thermal radiation interval area.

[0127] In the above, the temperature thermal radiation image data of each temperature detection area within the detection period is obtained through the thermal radiation data unit. The thermal radiation image unit extracts the thermal radiation image information in the coal conveying trestle area based on the obtained temperature thermal radiation image data. The coordinate system unit constructs a plane rectangular coordinate system using the thermal radiation image information. The edge contour unit obtains the inflection point coordinates of multiple thermal radiation edge contours in the coal conveying trestle area based on the plane rectangular coordinate system, and accurately defines the spatial distribution boundary of the thermal radiation. The area unit calculates the thermal radiation area in the coal conveying trestle area through the inflection point coordinates of the thermal radiation edge contour, and quantifies the intensity and coverage of the thermal radiation. The calculation formula of the thermal radiation area is: , where S represents the thermal radiation area, h represents the number of the coordinates of the inflection points of the thermal radiation edge contour, f=1,2,3…t, Expressed as the x-axis coordinate point of the f-th thermal radiation edge contour inflection point, It is represented by the x-axis coordinate point of the f+1th thermal radiation edge contour inflection point, It is represented by the y-axis coordinate point of the f-th thermal radiation edge contour inflection point, It is expressed as the y-axis coordinate point of the f+1th thermal radiation edge contour inflection point. The thermal radiation compensation table unit obtains the thermal radiation compensation table, which contains multiple thermal radiation interval areas and their corresponding temperature thermal radiation compensation information. The target thermal radiation unit determines its corresponding target thermal radiation interval area based on the calculated thermal radiation area and matches the corresponding compensation interval. The thermal radiation compensation information unit extracts the temperature thermal radiation compensation information corresponding to the target thermal radiation interval area from the thermal radiation compensation table, and provides correction data for the temperature detection of the coal conveying trestle area. By constructing a coordinate system and obtaining the coordinates of the inflection point of the thermal radiation edge contour, the system can accurately calculate the thermal radiation area and avoid the fuzzy estimation of the thermal radiation range in the traditional method.

[0128] In a preferred embodiment, the temperature alarm module includes a regional compensation extraction unit, an environmental compensation extraction unit, a thermal radiation extraction unit, an abnormality mark extraction unit, a temperature abnormality unit and an abnormality judgment unit, wherein:

[0129] A regional compensation extraction unit is used to obtain a regional temperature compensation value corresponding to the temperature anomaly detection area according to the regional temperature compensation information, and mark it as an abnormal regional temperature compensation value;

[0130] An environmental compensation extraction unit is used to obtain an environmental temperature compensation value corresponding to the temperature anomaly detection area according to the environmental temperature compensation information, and mark it as an abnormal area environmental temperature compensation value;

[0131] a thermal radiation extraction unit, configured to obtain a thermal radiation area corresponding to the temperature anomaly detection area according to the temperature thermal radiation compensation information, and mark the thermal radiation area as the abnormal area thermal radiation area;

[0132] An abnormality mark extraction unit is used to obtain the regional temperature value of the temperature abnormality detection area and mark it as the abnormal regional temperature value;

[0133] A temperature anomaly unit is used to obtain an image temperature anomaly value of a corresponding temperature anomaly detection area according to the temperature compensation value of the abnormal area, the ambient temperature compensation value of the abnormal area, the heat radiation area of ​​the abnormal area, and the temperature value of the abnormal area;

[0134] The abnormality judgment unit is used to judge whether the image temperature abnormal value meets the second preset condition. If not, the image temperature abnormal value obtains the corresponding temperature alarm information and issues an alarm message

[0135] In the above, the regional compensation extraction unit extracts the regional temperature compensation value corresponding to the temperature anomaly detection area according to the regional temperature compensation information, and the extracted compensation value is marked as the abnormal area temperature compensation value. The environmental compensation extraction unit extracts the ambient temperature compensation value corresponding to the temperature anomaly detection area from the ambient temperature compensation information and marks it as the abnormal area ambient temperature compensation value. The thermal radiation extraction unit extracts the thermal radiation area corresponding to the temperature anomaly detection area according to the temperature thermal radiation compensation information and marks it as the abnormal area thermal radiation area. The abnormal mark extraction unit obtains the real-time regional temperature value of the temperature anomaly detection area and marks it as the abnormal area temperature value. The temperature anomaly unit comprehensively calculates the image temperature anomaly value of the temperature anomaly detection area based on the extracted abnormal area temperature compensation value, the ambient temperature compensation value, the thermal radiation area and the abnormal area temperature value. The calculation formula of the image temperature anomaly value is: In the formula, U represents the image temperature anomaly value, Q represents the regional temperature value, Y represents the regional temperature compensation value, X represents the ambient temperature compensation value, and S represents the thermal radiation area. The anomaly judgment unit judges whether the calculated image temperature anomaly value meets the second preset condition. If the image temperature anomaly value does not meet the preset condition, it generates corresponding temperature alarm information and issues an alarm signal. Regional temperature compensation, ambient temperature compensation, and thermal radiation compensation comprehensively correct the external factors that affect the judgment of temperature anomaly, making the anomaly value calculation more accurate and able to adapt to the complex temperature distribution environment in the coal handling trestle area, reducing the possibility of false alarms and missed alarms, and integrating data from multiple dimensions (such as regional temperature, ambient temperature, thermal radiation area, etc.) to form a scientific anomaly analysis mechanism to avoid misjudgment caused by a single factor. By setting the second preset condition, it supports flexible definition of alarm triggering rules to meet the needs of different scenarios.

[0136] In a preferred embodiment, the abnormality judgment unit includes a temperature abnormality table unit, an abnormal value judgment unit and an alarm unit, wherein:

[0137] A temperature anomaly table unit is used to obtain a temperature anomaly table, wherein the temperature anomaly table includes a plurality of image temperature anomaly values ​​and temperature alarm information corresponding to each image temperature anomaly value;

[0138] An abnormal value judgment unit, used to judge whether the abnormal temperature value of the image is in the temperature abnormality table;

[0139] The alarm unit is used to obtain corresponding temperature alarm information from the temperature anomaly table according to the image temperature anomaly value and issue an alarm message if the image temperature anomaly value is in the temperature anomaly table.

[0140] As mentioned above, a predefined temperature anomaly table is obtained through the temperature anomaly table unit, which records multiple image temperature anomaly values ​​and their corresponding temperature alarm information. The content of the temperature anomaly table is set based on historical data, experimental analysis or expert experience as a benchmark for judging anomalies. After the image temperature anomaly value is calculated, the anomaly value judgment unit compares it with the temperature anomaly table to determine whether the value is in the temperature anomaly table to ensure the accuracy of the alarm condition. If the anomaly value judgment unit determines that the image temperature anomaly value is in the temperature anomaly table, the alarm unit extracts the temperature alarm information corresponding to the value from the table, generates an alarm signal based on the extracted information, and prompts relevant personnel or systems to take corresponding measures. The alarm information may include specific anomaly descriptions, anomaly levels, recommended processing methods, etc. Through the introduction of the temperature anomaly table, the anomaly judgment process has a clear benchmark, avoiding errors that may be caused by fuzzy judgments or over-reliance on real-time calculations, and can complete the judgment immediately after the anomaly value is generated, thereby improving the response speed of the system.

[0141] And, an intelligent alarm terminal for image temperature measurement of a coal handling trestle in a power plant, comprising:

[0142] one or more processors;

[0143] a storage device having one or more programs stored thereon;

[0144] When one or more programs are executed by one or more processors, the one or more processors implement an intelligent alarm system for temperature measurement of coal conveyor bridges in power plants.

[0145] The foregoing is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. An intelligent alarm system for temperature measurement of coal handling trestle in power plants, characterized by: include: A spatial layout module is used to obtain spatial layout data of the coal conveyor trestle and obtain multiple temperature detection areas based on the spatial layout data; an abnormal area module, configured to obtain temperature distribution image data within each temperature detection area, obtain regional temperature information of the corresponding temperature detection area based on the temperature distribution image data, determine whether the regional temperature information meets a first preset condition, and if not, determine that the temperature within the temperature monitoring area is abnormal and mark it as a temperature abnormality detection area; The regional temperature module is used to construct a detection period, obtain temperature image data of each temperature detection area within the detection period, and obtain regional temperature compensation information of the corresponding temperature detection area based on the temperature image data; The ambient temperature module is used to obtain the ambient temperature data of each temperature detection area during the detection period, and obtain the ambient temperature compensation information of the corresponding temperature detection area according to the ambient temperature data; The temperature thermal radiation module is used to obtain the temperature thermal radiation image data of each temperature detection area within the detection period, and obtain the temperature thermal radiation compensation information of the corresponding temperature detection area according to the temperature thermal radiation image data; The temperature alarm module is used to obtain the image temperature anomaly value of the temperature anomaly detection area based on the regional temperature compensation information, the ambient temperature compensation information, the temperature thermal radiation compensation information and the regional temperature information, and determine whether the image temperature anomaly value meets the second preset condition. If so, the image temperature anomaly value obtains the corresponding temperature alarm information and issues an alarm message.

2. The power plant coal handling trestle image temperature measurement intelligent alarm system according to claim 1 is characterized in that: The abnormal area module includes a temperature distribution image unit, a coal conveyor trestle structure image unit, a coal conveyor trestle area unit, a coal conveyor trestle area temperature unit, an area temperature marking unit, and an area temperature judgment unit, wherein: A temperature distribution image unit, used to obtain temperature distribution image data in each temperature detection area; A coal conveyor trestle structure image unit is used to obtain coal conveyor trestle structure image data; The coal conveyor bridge area unit is used to obtain coal conveyor bridge area image information based on the coal conveyor bridge structure image data; A coal conveyor bridge area temperature unit is used to obtain a plurality of regional temperature vectors within the coal conveyor bridge area in each temperature distribution image data according to the coal conveyor bridge area image information; A regional temperature marking unit, configured to obtain regional temperature values ​​of corresponding temperature detection regions according to a plurality of regional temperature vectors and mark the values ​​as regional temperature information; The regional temperature judgment unit is used to judge whether the regional temperature information meets the first preset condition. If not, it is determined that the temperature in the temperature monitoring area is abnormal and marked as a temperature abnormality detection area.

3. The power plant coal handling trestle image temperature measurement intelligent alarm system according to claim 2 is characterized in that: The regional temperature judgment unit includes an abnormal threshold unit and an abnormal region judgment unit, wherein: Abnormal threshold unit, used to obtain regional temperature threshold; An abnormal area judgment unit is used to judge whether the area temperature value exceeds the area temperature threshold; If the regional temperature value exceeds the regional temperature threshold, the temperature monitoring area within the coal handling trestle area in the temperature distribution image data is determined to be abnormal in temperature and marked as a temperature abnormality detection area.

4. The power plant coal handling trestle image temperature measurement intelligent alarm system according to claim 1 is characterized in that: The regional temperature module includes a time period construction unit, a temperature image unit, a temperature image vector unit, a regional temperature compensation unit, a regional temperature compensation table unit, a target regional temperature unit, and a regional compensation information unit, wherein: A time period construction unit, used for constructing a detection time period; A temperature image unit is used to obtain temperature image data of each temperature detection area within a detection period; A temperature image vector unit, configured to obtain a plurality of temperature image vectors in a coal handling trestle area in a corresponding temperature detection area according to the temperature image data; A regional temperature compensation unit, configured to obtain a regional temperature compensation value of a corresponding temperature detection region according to a plurality of temperature image vectors; A regional temperature compensation table unit is used to obtain a regional temperature compensation table, wherein the regional temperature compensation table includes a plurality of regional temperature compensation intervals and regional temperature compensation information corresponding to each regional temperature compensation interval; A target area temperature unit is used to obtain a corresponding target area temperature compensation interval according to the area temperature compensation value; The regional compensation information unit is used to obtain corresponding regional temperature compensation information from the regional temperature compensation table according to the target regional temperature compensation interval.

5. The power plant coal handling trestle image temperature measurement intelligent alarm system according to claim 1 is characterized in that: The time period construction unit includes an intermediate time unit, an area information table unit, a duration unit, a head and tail positioning unit, and a time period positioning unit, wherein: The intermediate time unit is used to obtain the time node marked as the temperature anomaly detection area and mark it as the intermediate time of the detection period; A region information table unit is used to obtain a region information table, wherein the region information table includes a plurality of region temperature information and a detection time corresponding to each region temperature information; The duration unit is used to obtain the corresponding detection duration from the regional information table according to the regional temperature information; The head and tail positioning unit is used to obtain the start time and end time of the detection period according to the middle time of the detection period and the detection duration; The time period positioning unit is used to obtain the detection time period according to the start time and end time of the detection time period.

6. The power plant coal handling trestle image temperature measurement intelligent alarm system according to claim 1 is characterized in that: The ambient temperature module includes an ambient temperature unit, an ambient vector unit, and an ambient compensation unit, where: An ambient temperature unit is used to obtain ambient temperature data of each temperature detection area during the detection period; An environmental vector unit, configured to obtain a plurality of environmental temperature vectors in a coal handling trestle area in a corresponding temperature detection area according to the environmental temperature data; The environmental compensation unit is used to obtain the environmental temperature compensation value of the coal conveying trestle area in the corresponding temperature detection area according to multiple environmental temperature vectors, and mark it as environmental temperature compensation information.

7. The power plant coal handling trestle image temperature measurement intelligent alarm system according to claim 1 is characterized in that: The temperature thermal radiation module includes a thermal radiation data unit, a thermal radiation image unit, a coordinate system unit, an edge contour unit, an area unit, a thermal radiation compensation table unit, a target thermal radiation unit, and a thermal radiation compensation information unit, wherein: A thermal radiation data unit is used to obtain temperature thermal radiation image data of each temperature detection area within a detection period; A thermal radiation image unit, configured to obtain thermal radiation image information of a coal handling trestle area in a corresponding temperature detection area according to the temperature thermal radiation image data; A coordinate system unit, used for constructing a plane rectangular coordinate system according to thermal radiation image information; An edge contour unit is used to obtain the coordinates of multiple thermal radiation edge contour inflection points in the corresponding coal handling trestle area according to a plane rectangular coordinate system; An area unit, used to obtain the heat radiation area according to the coordinates of a plurality of heat radiation edge contour inflection points; A thermal radiation compensation table unit, configured to obtain a thermal radiation compensation table, wherein the thermal radiation compensation table includes a plurality of thermal radiation interval areas and temperature thermal radiation compensation information corresponding to each thermal radiation interval area; A target heat radiation unit is used to obtain a corresponding target heat radiation interval area according to the heat radiation area; The thermal radiation compensation information unit is used to obtain corresponding temperature thermal radiation compensation information from the thermal radiation compensation table according to the target thermal radiation interval area.

8. The power plant coal handling trestle image temperature measurement intelligent alarm system according to claim 1 is characterized in that: The temperature alarm module includes a regional compensation extraction unit, an environmental compensation extraction unit, a thermal radiation extraction unit, an abnormal mark extraction unit, a temperature abnormality unit, and an abnormality judgment unit, wherein: A regional compensation extraction unit is used to obtain a regional temperature compensation value corresponding to the temperature anomaly detection area according to the regional temperature compensation information, and mark it as an abnormal regional temperature compensation value; An environmental compensation extraction unit is used to obtain an environmental temperature compensation value corresponding to the temperature anomaly detection area according to the environmental temperature compensation information, and mark it as an abnormal area environmental temperature compensation value; a thermal radiation extraction unit, configured to obtain a thermal radiation area corresponding to the temperature anomaly detection area according to the temperature thermal radiation compensation information, and mark the thermal radiation area as the abnormal area thermal radiation area; An abnormality mark extraction unit is used to obtain the regional temperature value of the temperature abnormality detection area and mark it as the abnormal regional temperature value; A temperature anomaly unit is used to obtain an image temperature anomaly value of a corresponding temperature anomaly detection area according to the temperature compensation value of the abnormal area, the ambient temperature compensation value of the abnormal area, the heat radiation area of ​​the abnormal area, and the temperature value of the abnormal area; The abnormality judgment unit is used to judge whether the image temperature abnormal value meets the second preset condition. If not, the image temperature abnormal value obtains corresponding temperature alarm information and issues an alarm message.

9. The power plant coal handling trestle image temperature measurement intelligent alarm system according to claim 1 is characterized in that: The abnormality judgment unit includes a temperature abnormality table unit, an abnormal value judgment unit and an alarm unit, wherein: A temperature anomaly table unit is used to obtain a temperature anomaly table, wherein the temperature anomaly table includes a plurality of image temperature anomaly values ​​and temperature alarm information corresponding to each image temperature anomaly value; An abnormal value judgment unit, used to judge whether the abnormal temperature value of the image is in the temperature abnormality table; The alarm unit is used to obtain corresponding temperature alarm information from the temperature anomaly table according to the image temperature anomaly value and issue an alarm message if the image temperature anomaly value is in the temperature anomaly table.

10. An intelligent alarm terminal for image temperature measurement of coal handling trestle in power plants, characterized in that: include: one or more processors; a storage device having one or more programs stored thereon; When one or more programs are executed by one or more processors, the one or more processors implement the power plant coal conveyor trestle image temperature measurement intelligent alarm system as described in any one of claims 1 to 9.

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