Power plant coal conveying trestle image temperature measurement intelligent alarm system

Abstract

The invention belongs to the technical field of power plant coal conveying trestles, and particularly relates to a power plant coal conveying trestle image temperature measurement intelligent alarm system. According to the invention, through multi-level data acquisition, a temperature abnormal area can be efficiently positioned, the risk of false alarm and missing alarm can be reduced, by means of area temperature, environment temperature and thermal radiation compensation information, measurement errors caused by environment conditions or equipment deviation can be effectively corrected, the accuracy and reliability of temperature detection can be improved, each module is independent in function, and the cost is low. The system is simple in structure and convenient to upgrade or expand, a new monitoring module or a linkage control module can be added according to actual requirements, temperature abnormity alarm information can be linked with an intelligent management platform, abnormal data can be recorded, a trend analysis report can be generated, and a scientific basis is provided for equipment maintenance and safe operation of a coal conveying trestle.

Description

Technical Field

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

[0002] In the power industry, the coal handling trestle of power plants is an important part of coal-fired power plants. Its safe and efficient operation is of great significance to ensuring power supply. However, since a large amount of coal dust and coal powder will be generated during the coal burning process, these substances will accumulate in the coal handling trestle, which may not only cause fires, but also cause wear and corrosion to the equipment, affecting the service life of the equipment. In addition, the spontaneous combustion of coal powder is also a safety hazard that cannot be ignored. Once the open flame coal is generated, if it is not discovered and handled in time, it may cause an explosion, causing huge losses to the trestle and the company's economy, and will also cause serious harm to the surrounding environment.

[0003] Traditional temperature monitoring methods, such as heat and smoke detectors, have limitations in their application within the coal handling trestle. Due to interference from coal dust and coal powder, these detectors may not be able to accurately and in real time monitor 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 the coal handling trestle.

[0004] In recent years, with the rapid development of video surveillance technology and artificial intelligence technology, image temperature measurement technology has gradually been applied to various fields. In the coal handling trestle of a power plant, by installing high-definition cameras, video images of the monitoring area can be collected in real time. Then, using advanced image processing and recognition technology, these video images are processed and analyzed to achieve real-time monitoring of temperature changes in the coal handling trestle.

[0005] However, the image temperature measurement system for coal handling trestles on the market still has shortcomings. The existing system is weak in multi-source data fusion and anomaly analysis, and it is difficult to comprehensively consider the impact of multiple factors on temperature detection results, resulting in sending erroneous alarm signals and reducing the working efficiency of the coal handling system. Summary of the invention

[0006] The purpose of the present invention is to provide an image temperature measurement intelligent alarm system for a coal transport trestle in a power plant, which can realize efficient detection and alarm of temperature anomalies, not only improve the accuracy and reliability of temperature monitoring, but also enhance the scalability and linkage of the system, and provide scientific guarantee for the safe operation of the coal transport trestle.

[0007] The technical solution adopted by the present invention is as follows: An intelligent alarm system for image temperature measurement of coal handling trestle in a power plant, comprising: A spatial layout module is used to obtain spatial layout data of the coal transport trestle and obtain multiple temperature detection areas according to the spatial layout data; The abnormal area module is used to obtain the temperature distribution image data in each temperature detection area, obtain the regional temperature information of the corresponding temperature detection area according to the temperature distribution image data, and judge whether the regional temperature information meets the first preset condition. If not, it is judged that the temperature in the temperature monitoring area is abnormal and marked 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 according to the temperature image data; An ambient temperature module is used to obtain ambient temperature data of each temperature detection area within a detection period, and obtain 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 according to the regional temperature compensation information, the ambient temperature compensation information, the temperature thermal radiation compensation information and the regional temperature information, and judge 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.

[0008] 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: A temperature distribution image unit, used to obtain temperature distribution image data in each temperature detection area; A coal conveyor trestle structure image unit, used to obtain coal conveyor trestle structure image data; A coal conveyor bridge area unit is used to obtain coal conveyor bridge area image information according to the coal conveyor bridge structure image data; A coal conveyor bridge area temperature unit is used to obtain a plurality of area temperature vectors in 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, used to obtain regional temperature values ​​of corresponding temperature detection regions according to a plurality of regional temperature vectors, and mark them 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.

[0009] In a preferred embodiment, the regional temperature judgment unit includes an abnormal threshold unit and an abnormal region judgment unit, wherein: Anomaly 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 of the temperature monitoring area in the coal handling trestle area in the temperature distribution image data is determined to be abnormal, and is marked as a temperature abnormality detection area.

[0010] 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: A time period construction unit, used for constructing a detection time period; A temperature image unit, used to obtain temperature image data of each temperature detection area within a detection period; A temperature image vector unit, used for acquiring a plurality of temperature image vectors in the coal handling trestle area in the corresponding temperature detection area according to the temperature image data; A regional temperature compensation unit, used for obtaining 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, 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 an 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.

[0011] 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: 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, 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; A duration unit, 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.

[0012] In a preferred embodiment, the ambient temperature module includes an ambient temperature unit, an ambient vector unit and an ambient compensation unit, wherein: An ambient temperature unit is used to obtain ambient temperature data of each temperature detection area within a detection period; An environmental vector unit, used for obtaining 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.

[0013] 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: A thermal radiation data unit, used to obtain temperature thermal radiation image data of each temperature detection area within a detection period; A thermal radiation image unit, used for acquiring thermal radiation image information in the coal handling trestle area in the 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 a plurality of 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 thermal radiation area according to the coordinates of a plurality of thermal radiation edge contour inflection points; A thermal radiation compensation table unit, used 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, 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.

[0014] 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 abnormal mark extraction unit, a temperature abnormality unit and an abnormality judgment unit, wherein: A regional compensation extraction unit, 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, 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, used to obtain a thermal radiation area corresponding to the temperature anomaly detection area according to the temperature thermal radiation compensation information, and mark it as the thermal radiation area of ​​the abnormal area; An abnormal 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, used to obtain an image temperature anomaly value of a corresponding temperature anomaly detection area according to a temperature compensation value of an abnormal area, an ambient temperature compensation value of an abnormal area, a thermal radiation area of ​​an abnormal area, and a temperature value of an 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 the corresponding temperature alarm information and issues an alarm message. In a preferred embodiment, 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, 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 image temperature abnormal value 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.

[0015] And, an intelligent alarm terminal for image temperature measurement of a coal handling trestle in a power plant, comprising: 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 realize the intelligent alarm system for image temperature measurement of the coal transportation trestle of the power plant.

[0016] The technical effects achieved by the present invention are: The present invention can efficiently locate temperature abnormality areas through multi-level data collection, reduce the risks of false alarms and missed alarms, and effectively correct measurement errors caused by environmental conditions or equipment deviations with the help of regional temperature, ambient temperature and thermal radiation compensation information, thereby improving 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, thus providing a scientific basis for equipment maintenance and safe operation of the coal transport trestle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a system module diagram provided by the present invention; Figure 2 It is a flow chart provided by the present invention. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and 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.

[0020] Secondly, the term "one embodiment" or "embodiment" as used 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" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0021] Secondly, the present invention is described in detail in conjunction with schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the schematic diagrams are only examples and should not limit the scope of protection of the present invention.

[0022] Please see attached Figure 1 and Figure 2 As shown, an intelligent alarm system for image temperature measurement of coal handling trestle in a power plant is provided, comprising: A spatial layout module is used to obtain spatial layout data of the coal transport trestle and obtain multiple temperature detection areas according to the spatial layout data; The abnormal area module is used to obtain the temperature distribution image data in each temperature detection area, obtain the regional temperature information of the corresponding temperature detection area according to the temperature distribution image data, and judge whether the regional temperature information meets the first preset condition. If not, it is judged that the temperature in the temperature monitoring area is abnormal and marked 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 according to the temperature image data; The ambient temperature module is used to obtain the ambient temperature data of each temperature detection area within 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 according to the regional temperature compensation information, the ambient temperature compensation information, the temperature thermal radiation compensation information and the regional temperature information, and judge 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.

[0023] 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 transport 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 the abnormal area, it is marked as a temperature abnormality detection area. 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 a meteorological sensor or an environmental monitoring system), 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 rule, 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 modules) 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.

[0024] 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: A temperature distribution image unit, used to obtain temperature distribution image data in each temperature detection area; A coal conveyor trestle structure image unit, used to obtain coal conveyor trestle structure image data; A coal conveyor bridge area unit is used to obtain coal conveyor bridge area image information according to the coal conveyor bridge structure image data; A coal conveyor bridge area temperature unit is used to obtain a plurality of area temperature vectors in 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, used to obtain regional temperature values ​​of corresponding temperature detection regions according to a plurality of regional temperature vectors, and mark them 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.

[0025] 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 structural 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, thereby avoiding errors in data collection. The coal conveyor trestle area unit extracts the regional image information of the coal conveyor trestle according to the structural image data, and clarifies the boundaries and positions of each area. The coal conveyor trestle regional temperature unit extracts multiple temperature vectors (such as temperature point values ​​or regional temperature averages) of the coal conveyor trestle area in each temperature distribution image. The regional temperature marking unit calculates the regional temperature value of each temperature detection area according to the 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 represented as the i-th regional temperature vector, and the calculation result is marked as the regional temperature information. The regional temperature judgment unit compares the regional temperature information with the first preset condition (such as the upper temperature limit, the 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 it is marked as the temperature anomaly detection area. By combining the temperature distribution image and the coal conveyor trestle structure image data, it is ensured that the temperature detection corresponds accurately to the actual physical area, avoiding misjudgment or missed judgment, accurately locating the abnormal area, reducing interference with the non-abnormal area, and being able to dynamically respond to temperature changes, timely discover abnormal conditions, and improve the real-time and sensitivity of the system.

[0026] In a preferred embodiment, the regional temperature judgment unit includes an abnormal threshold unit and an abnormal region judgment unit, wherein: Anomaly 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 of the temperature monitoring area in the coal handling trestle area in the temperature distribution image data is determined to be abnormal, and is marked as a temperature abnormality detection area.

[0027] As described above, the abnormal threshold unit obtains the regional temperature threshold of each temperature monitoring area according to the preset safety operation standard or dynamic environmental condition. 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 scientificity 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 scope. The area is highlighted by color coding, alarm signals or other means, so that the temperature abnormal area can be quickly and accurately identified to ensure that the temperature abnormal area can be identified and processed as soon as possible.

[0028] 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: A time period construction unit, used for constructing a detection time period; A temperature image unit, used to obtain temperature image data of each temperature detection area within a detection period; A temperature image vector unit, used for acquiring a plurality of temperature image vectors in the coal handling trestle area in the corresponding temperature detection area according to the temperature image data; A regional temperature compensation unit, used for obtaining 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, 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 an 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.

[0029] As mentioned above, the time period construction unit constructs the detection time period (for example, divided by minutes, hours or other time intervals) according to the operation characteristics of the coal handling 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. It can realize dynamic temperature monitoring and 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 transportation trestle.

[0030] 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: 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, 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; A duration unit, 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.

[0031] 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 duration 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.

[0032] In a preferred embodiment, the ambient temperature module includes an ambient temperature unit, an ambient vector unit and an ambient compensation unit, wherein: An ambient temperature unit is used to obtain ambient temperature data of each temperature detection area within a detection period; An environmental vector unit, used for obtaining 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 in 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.

[0033] As mentioned above, during the detection period, the ambient temperature data of each temperature detection area is obtained through the ambient temperature unit, and 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 acquired 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.

[0034] 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: A thermal radiation data unit, used to obtain temperature thermal radiation image data of each temperature detection area within a detection period; A thermal radiation image unit, used for acquiring thermal radiation image information in the coal handling trestle area in the 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 a plurality of 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 thermal radiation area according to the coordinates of a plurality of thermal radiation edge contour inflection points; A thermal radiation compensation table unit, used 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, 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.

[0035] 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 according to 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 according to 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, It is represented by the x-axis coordinate point of the fth 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 fth thermal radiation edge contour inflection point, It is represented 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 temperature detection in the coal handling 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.

[0036] 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 abnormal mark extraction unit, a temperature abnormality unit and an abnormality judgment unit, wherein: A regional compensation extraction unit, 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, 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, used to obtain a thermal radiation area corresponding to the temperature anomaly detection area according to the temperature thermal radiation compensation information, and mark it as the thermal radiation area of ​​the abnormal area; An abnormal 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, used to obtain an image temperature anomaly value of a corresponding temperature anomaly detection area according to a temperature compensation value of an abnormal area, an ambient temperature compensation value of an abnormal area, a thermal radiation area of ​​an abnormal area, and a temperature value of an 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 the corresponding temperature alarm information and issues an alarm message. 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 according to 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: , where 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 abnormal judgment unit determines whether the calculated image temperature anomaly value meets the second preset condition. If the image temperature anomaly value does not meet the preset condition, the corresponding temperature alarm information is generated and an alarm signal is issued. The regional temperature compensation, ambient temperature compensation and thermal radiation compensation comprehensively correct the external factors that affect the judgment of temperature anomaly, making the calculation of anomaly values ​​more accurate, and being 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 abnormal analysis mechanism to avoid misjudgment caused by a single factor. Through the setting of the second preset condition, it supports flexible definition of alarm triggering rules to meet the needs of different scenarios.

[0037] In a preferred embodiment, 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, 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 image temperature abnormal value 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.

[0038] As mentioned above, a predefined temperature anomaly table is obtained through the temperature anomaly table unit, and the table 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 basis 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, and generates an alarm signal based on the extracted information to prompt 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.

[0039] And, an intelligent alarm terminal for image temperature measurement of a coal handling trestle in a power plant, comprising: 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 realize the intelligent alarm system for image temperature measurement of the coal transportation trestle of the power plant.

[0040] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. An intelligent alarm system for temperature measurement of coal handling trestle in power plants, characterized in that: include: A spatial layout module is used to obtain spatial layout data of the coal transport trestle and obtain multiple temperature detection areas according to the spatial layout data; The abnormal area module is used to obtain the temperature distribution image data in each temperature detection area, obtain the regional temperature information of the corresponding temperature detection area according to the temperature distribution image data, and judge whether the regional temperature information meets the first preset condition. If not, it is judged that the temperature in the temperature monitoring area is abnormal and marked 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 according to the temperature image data; The ambient temperature module is used to obtain the ambient temperature data of each temperature detection area within 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 according to the regional temperature compensation information, the ambient temperature compensation information, the temperature thermal radiation compensation information and the regional temperature information, and judge 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, used to obtain coal conveyor trestle structure image data; A coal conveyor bridge area unit is used to obtain coal conveyor bridge area image information according to the coal conveyor bridge structure image data; A coal conveyor bridge area temperature unit is used to obtain a plurality of area temperature vectors in 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, used to obtain regional temperature values ​​of corresponding temperature detection regions according to a plurality of regional temperature vectors, and mark them 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: Anomaly 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 of the temperature monitoring area in the coal handling trestle area in the temperature distribution image data is determined to be abnormal, and is 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, used to obtain temperature image data of each temperature detection area within a detection period; A temperature image vector unit, used for acquiring a plurality of temperature image vectors in the coal handling trestle area in the corresponding temperature detection area according to the temperature image data; A regional temperature compensation unit, used for obtaining 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, 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 an 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, 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; A duration unit, 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, wherein: An ambient temperature unit is used to obtain ambient temperature data of each temperature detection area within a detection period; An environmental vector unit, used for obtaining 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, used to obtain temperature thermal radiation image data of each temperature detection area within a detection period; A thermal radiation image unit, used for acquiring thermal radiation image information in the coal handling trestle area in the 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 a plurality of 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 thermal radiation area according to the coordinates of a plurality of thermal radiation edge contour inflection points; A thermal radiation compensation table unit, used 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, 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, 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, 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, used to obtain a thermal radiation area corresponding to the temperature anomaly detection area according to the temperature thermal radiation compensation information, and mark it as the thermal radiation area of ​​the abnormal area; An abnormal 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, used to obtain an image temperature anomaly value of a corresponding temperature anomaly detection area according to a temperature compensation value of an abnormal area, an ambient temperature compensation value of an abnormal area, a thermal radiation area of ​​an abnormal area, and a temperature value of an 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, 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 image temperature abnormal value 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 a power plant, 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 intelligent alarm system for temperature measurement of coal handling trestles in power plants as described in any one of claims 1 to 9.

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