CN104677504B

CN104677504B - Determining device and determining method

Info

Publication number: CN104677504B
Application number: CN201410714520.9A
Authority: CN
Inventors: 王浩
Original assignee: Hangzhou Mission Infrared Electro Optics Technology Co Ltd
Current assignee: Hangzhou Mission Infrared Electro Optics Technology Co Ltd
Priority date: 2013-12-01
Filing date: 2014-11-30
Publication date: 2021-12-28
Anticipated expiration: 2034-11-30
Also published as: CN104677504A; CN114414062B; CN114414062A; WO2015078418A1

Abstract

The invention discloses a decision device and a decision method, and relates to the field of application of infrared detection. In the prior art, when a displayed infrared thermal image contains a plurality of analysis areas, the thermal image of a shot object is shielded, so that the observation and judgment of a user are influenced; when a large number of analysis areas are displayed indiscriminately, a user is easily confused about observing each analysis area and a corresponding analysis result, and cannot visually know the important part, so that the workload of the user is increased. The decision device comprises an analysis part, a decision processing part and a decision processing part, wherein the analysis part is used for obtaining an analysis result related to the thermal image data; a comparison unit for comparing the analysis result with a predetermined value; and the determining part is used for determining the presentation state of the prompt identifier and/or the analysis area related to the thermal image data according to the comparison result. Thereby solving the problem.

Description

Determining device and determining method

Technical Field

The invention discloses a decision device and a decision method, and relates to the field of application of infrared detection.

Background

When the thermal image data is analyzed, an analysis region is set for a specific part of the thermal image of the object, and an analysis result is obtained according to a specified analysis mode. Wherein the analysis area is a combination of one or more analysis areas such as points, lines, planes, etc.; the analysis mode represents a thermal image data area determined based on the analysis area, and analysis calculation rules adopted for analyzing and obtaining analysis results are calculated, such as calculating the highest temperature, the average temperature, the lowest temperature and the difference value among the highest temperature, the average temperature and the lowest temperature in the analysis area; to facilitate the observation of the analytical results, the analytical zones S01, S02, S03 or also the analytical results are usually displayed in an infrared thermography.

However, as shown in fig. 3, the analysis regions S01, S02, and S03 may have a shielding effect on the subject thermal image IR1 when a plurality of analysis regions are included in the displayed infrared thermal image, which may affect the observation and judgment of the user on the thermal image IR 1; however, when a large number of analysis regions are displayed without distinction, a user is easily confused about observing each analysis region and the corresponding analysis result, and cannot quickly and intuitively know the important part.

Patent documents mention a method of setting an analysis region using a reference image, but do not mention how to control display of the analysis region, and when a large number of analysis regions are set in the reference image, the problem described above is also caused by a large amount of obstruction of a subject thermal image.

When a more detailed analysis area is provided to analyze the subject thermal image, the accuracy and comprehensiveness of the analysis result can be improved, but this is aggravated. When printed as a paper report, this reduces the intuitiveness of the report;

therefore, it is understood that there is a need for a decision device that solves the problems of the prior art.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a determining device and a determining method, which can determine the presentation state of a prompt mark and/or an analysis area related to thermal image data according to an analysis result; thereby solving the problems of the prior art.

Therefore, the invention adopts the following technical scheme that the determining device comprises:

an analysis section for obtaining an analysis result related to the thermal image data;

a comparison unit for comparing the analysis result with a predetermined value;

the determining part is used for determining a prompt identifier and/or an analysis area and/or a presentation state of a first analysis result related to the thermal image data according to the comparison result; and/or other thermal image data related to the thermal image data, prompt identification related to the other thermal image data and/or a presentation state of the analysis area and/or the first analysis result.

The determination method of the present invention includes the following steps:

an analysis step for obtaining an analysis result related to the thermal image data;

a comparison step of comparing the analysis result with a prescribed value;

a decision step, which is used for deciding the presentation state of the prompt identifier and/or the analysis area and/or the first analysis result related to the thermal image data according to the comparison result; and/or other thermal image data related to the thermal image data, prompt identification related to the other thermal image data and/or a presentation state of the analysis area and/or the first analysis result.

Other aspects and advantages of the invention will become apparent from the following description.

Description of the drawings:

fig. 1 is a block diagram of an electrical structure of the thermal image device of embodiment 1.

FIG. 2 is a profile view of the thermal image device of example 1.

FIG. 3 is a display example of a prior art analysis area in infrared thermography.

Fig. 4 is a schematic diagram showing an analysis area, an analysis pattern (including a predetermined value), and a display parameter stored in a storage medium.

Fig. 5 is a control flowchart of embodiment 1.

Fig. 6 is a display example of an analysis area set before analysis and a display interface after analysis of a subject thermal image based on the analysis area.

Fig. 7 is a display example of a display interface according to selection of a marker related to an analysis area.

Fig. 8 is a schematic diagram showing an implementation of the subject information, the reference image configuration data, the analysis region configuration data, the analysis mode (including a predetermined value), and the display parameter stored in the storage medium.

Fig. 9 is a control flowchart of embodiment 2.

Fig. 10 shows an example of display of a display interface before and after analysis according to the analysis area.

Fig. 11 is a block diagram of an electrical structure of the thermal image processing apparatus of embodiment 3.

FIG. 12 is an external view of the thermal image processing apparatus according to embodiment 3.

FIG. 13 is a display example of the analysis area before and after the processing of example 3 in an infrared thermography.

Fig. 14 is a control flowchart of embodiment 3.

FIG. 15 is a display example of an analysis area in an infrared thermal image before and after the regulation of the prescribed value in example 4.

FIG. 16 is an example of an infrared thermal image of example 5.

Fig. 17 is an example of an array analysis area of example 5.

FIG. 18 is an example of another array analysis area of example 5.

FIG. 19 is a display example of an array analysis area in an infrared thermography and a display example of a display interface before and after meeting a presentation condition in example 5.

Detailed Description

The following examples are to be construed as being illustrative and not limitative of the scope of the present invention and are intended to be modified in various forms within the scope thereof. In example 1, the thermal image data is thermal image AD value data, but is not limited thereto, and in other embodiments, the thermal image data may be image data of an infrared thermal image, for example, other data generated based on the thermal image AD value data, such as array data of temperature values, for example, data of a plurality of mixtures of these data, for example, data of one or more of these mixed and compressed data, and the like. In example 1, the thermal image data is obtained by shooting, but is not limited thereto, and in other embodiments, for example, the thermal image data may be obtained by receiving external thermal image data, or may be obtained by reading a thermal image file from a storage medium. The thermal image file mentioned below can be a thermal image picture file or a thermal image video file, and the thermal image picture file contains a frame of thermal image data, including multiple frames of thermal image data with different formats, such as thermal image AD value data, image data of infrared thermal images, and the like, but substantially belongs to the condition that the same frame of thermal image data has different data formats; the thermal image video file comprises multi-frame thermal image data.

Example 1

Embodiment 1 takes a portable thermal imaging device 13 with a photographing function as an example of the decision device. The structure of the thermal image device 13 of embodiment 1 is explained with reference to fig. 1.

The thermal image device 13 is provided with a shooting part 1, an image processing part 2, a display control part 3, a display part 4, a communication I/F5, a temporary storage part 6, a memory card I/F7, a memory card 8, a flash memory 9, an operation part 10 and a control part 11, wherein the control part 11 is connected with the corresponding parts through a control and data bus 12 and is responsible for the overall control of the thermal image device 13.

The imaging unit 1 is configured by an optical component, a lens driving component, an infrared detector, a signal preprocessing circuit, and the like, which are not shown. The optical component is composed of an infrared optical lens for focusing the received infrared radiation to the infrared detector. The lens driving part drives the lens to perform focusing or zooming according to a control signal of the control part 11, or may be an optical part that is manually adjusted. An infrared detector, such as a refrigeration or non-refrigeration type infrared focal plane detector, converts infrared radiation passing through the optical components into electrical signals. The signal preprocessing circuit comprises a sampling circuit, an AD conversion circuit, a timing trigger circuit and the like, performs signal processing such as sampling on an electric signal output from the infrared detector in a specified period, and converts the electric signal into digital thermal image data through the AD conversion circuit, wherein the thermal image data comprises thermal image AD value data which is binary data such as 14 bits or 16 bits. The thermal image data is not limited to the intrinsic resolution of the infrared detector, and can be lower or higher than the resolution of the infrared detector; the thermal image data is not limited to being obtained by processing the analog signal output by the infrared detector, and may be obtained from a digital signal output from the infrared detector itself. In embodiment 1, the photographing part 1 functions as a thermal image acquiring part for acquiring thermal image data.

The image processing unit 2 performs predetermined processing on the thermal image data obtained by the image pickup unit 1, and the image processing unit 2 performs processing for converting the thermal image data into data suitable for display, recording, and the like, such as correction, interpolation, pseudo color, synthesis, compression, decompression, and the like. For example, the image processing unit 2 performs predetermined processing such as pseudo-color processing on thermal image data obtained by imaging by the imaging unit 1 to obtain image data of an infrared thermal image. The image processing unit 2 can be implemented by, for example, a DSP, another microprocessor, a programmable FPGA, or the like.

The display control unit 3 performs generation and output of a video signal from the image data for display stored in the temporary storage unit 6 under the control of the control unit 11, and the video signal is displayed on the display unit 4. Screen aspect ratios of 4: 3, a liquid crystal display screen; preferably, in order to clearly and clearly display the infrared thermal image, the position information, the shot object information and the like at the same time, a screen aspect ratio of 16: 9, a liquid crystal display panel.

The communication I/F5 is an interface for connecting and exchanging data between the thermal imaging device 13 and an external device such as a personal computer, a server, a PDA (personal digital assistant), another thermal imaging device, or a visible light camera, in accordance with a communication specification such as USB, 1394, or a network.

The temporary storage unit 6 is a volatile memory such as RAM, DRAM, or the like, and serves as a buffer memory for temporarily storing thermal image data output from the image pickup unit 1, and also serves as a work memory for the image processing unit 2 and the control unit 11, and temporarily stores data processed by the image processing unit 2 and the control unit 11.

The memory card I/F7 is connected to the memory card I/F7 as an interface of the memory card 8, as a rewritable nonvolatile memory, and is detachably mounted in a card slot of the thermal image device 13 main body, and records data such as thermal image data under the control of the control unit 11.

The flash memory 9 stores a program for control and various data used for control of each part.

The storage medium in the following may be a storage medium in the thermal imaging device 13 (determination device), such as a nonvolatile storage medium like the flash memory 9, the memory card 8, or the like, a volatile storage medium like the temporary storage 6, or the like; it may also be other storage media that are wired or wirelessly connected to the thermal imaging device 13 (decision device), such as storage media in other storage devices, thermal imaging devices, computers, etc., or storage media of network destinations, through wired or wireless connection to the communication I/F5.

The operation section 10: the control unit 11 executes a program corresponding to an operation signal from the operation unit 10 for a user to perform various operations. The operation unit 10 will be described with reference to fig. 2, and the keys for the user to operate include a record key 1, an analysis key 2, and the like; not limited to this, the touch panel 3, a voice recognition unit (not shown), or the like may be used to perform the relevant operation.

The control unit 11 controls the overall operation of the thermal imaging device 13, and a program for control and various data used in control of each unit are stored in a storage medium such as the flash memory 9. The control unit 11 is realized by, for example, a CPU, an MPU, an SOC, a programmable FPGA, or the like; the image processing unit 2 and the display control unit 3 may be a processor integrated with the control unit 11.

The control part 11 is used as an analysis part for obtaining an analysis result related to the thermal image data; the thermal image data can be one frame or multiple frames of thermal image data; the analysis result may have one or more analysis results.

The analysis result related to the thermal image data may be an analysis result obtained based on one frame of thermal image data; for example, an analysis value obtained by analyzing one frame of thermal image data is used as an analysis result; the presentation state of the analysis area of the frame of thermal image data can be determined according to the comparison between the analysis result and a specified value; for example, the presentation state of the analysis area corresponding to the analysis result is obtained.

The analysis result related to the thermal image data can be an analysis result obtained based on the multi-frame thermal image data; for example, in example 3, for thermal image data of A, B, C three phases based on analysis values obtained by analysis in a prescribed analysis region (e.g., S02), the results of differences in analysis values of the same analysis region (e.g., S02) compared with each other may be used as the analysis results; the presentation status of the corresponding analysis region (e.g., S02) of the multi-frame thermal image data may be determined according to the comparison of the analysis result (e.g., obtained at S02) with the predetermined value.

There are many embodiments for obtaining the results of the analysis; the control part 11 as an analysis part may obtain an analysis result by analyzing information related to the thermal image data, such as an information file associated with the thermal image data, an index file, for example; obtaining an analysis result, for example, by parsing additional information in the obtained thermal image data; for example, by analyzing the obtained thermal image data to obtain an analysis result, or the like.

In one example, analysis results and the like are obtained by analyzing an information file related to a frame of thermal image data, wherein the information file stores analysis results related to the frame of thermal image data and index information of the frame of thermal image data, such as a thermal image picture file name and the like; such as the analysis area and its number of the frame of thermal image data, and the corresponding analysis result.

In one example, the analysis method is used for analyzing information related to the multi-frame thermal image data, for example, obtaining analysis results corresponding to each frame of the multi-frame thermal image data, which is associated with the analysis results. The information related to the multi-frame thermal image data, for example, the information file, the index file, and the like related to the multi-frame thermal image data, for example, the information file stores the analysis result corresponding to each frame of the multi-frame thermal image data associated with the analysis result, and the index information of each of the multi-frame thermal image data, such as the filename of the thermal image picture.

In addition, an acquisition part for acquiring thermal image data can also be provided;

the corresponding thermal image data may be acquired, for example, by acquiring a thermal image picture file or a thermal image video file, etc. Analysis results related to thermal image data contained in the thermal image files can be obtained through analysis of the thermal image files.

In one example, the control unit 11 is used as an analysis unit for analyzing an analysis area and an analysis result corresponding to the acquired thermal image data to obtain an analysis result obtained by analyzing the thermal image data according to a predetermined analysis area. For example, the method can be used for analyzing the thermal image file to obtain an analysis area and related analysis results associated with the thermal image data contained in the thermal image file.

In an example, the analysis result related to the thermal image data is not limited to the analysis result obtained based on the thermal image data, and the analysis result may also be obtained from other thermal image data related to the thermal image data, for example, three frames of thermal image data respectively captured for A, B, C phases in the same group, where the analysis result of B, C phase is also stored in the thermal image picture file of the a-phase thermal image data in a correlated manner, and the analysis result of B, C phase may be obtained by analyzing the correlated information of the a-phase thermal image data.

The control unit 11 is used as an analysis unit for analyzing the acquired thermal image data to obtain an analysis result. For example, the method can be used for analyzing the obtained thermal image data according to a specified analysis area to obtain an analysis result. The defined analysis area may have one or more analysis areas.

The acquisition part can acquire thermal image data through shooting; moreover, the acquisition part can also continuously shoot and acquire thermal image data; in one example, the control unit 11 is an analyzing unit configured to continuously analyze the acquired continuous thermal image data according to a predetermined analysis area to obtain an analysis result.

In an example of the predetermined analysis area, when the object information and the information on the analysis area related thereto are stored in the flash memory 9 in advance, the analysis area may be set based on the information on the analysis area related to the selected object information, in accordance with the selection of the object information; information about the analysis area, for example analysis area composition data and/or location parameters of the analysis area in the infrared thermography. In another example, the analysis area may be set by the user according to a displayed infrared thermal image; in one example, when an analysis region is set for the thermal image data to be played back, the analysis region may also be set based on information about the analysis region associated with the thermal image data (e.g., including analysis region configuration data and analysis region position parameters).

The entire frame of thermographic data may also be used as a special case of an analysis area, and although the analysis area is not related to whether the image is displayed in the infrared thermography, the analysis data obtained by analyzing the analysis area may also be used as one or more of the obtained analysis results.

Analysis-related analysis patterns, such as analysis patterns obtained from analysis pattern information stored in advance in association with analysis region configuration data and/or position information of an analysis region located in an infrared thermography. In addition, the analysis mode may not be associated with the storage, for example, the analysis mode may also be set by the user, or the maximum temperature may be calculated by a default analysis mode of the thermal image device 13, for example, the analysis area; in addition, the analysis modes of the above-described embodiments may be included.

The analysis mode represents an analysis calculation rule used for analyzing the thermal image data area determined based on the analysis area to obtain the analysis result, and the analysis calculation rule is not limited to the calculation of the temperature value and can be an analysis calculation rule related to various analyses of the thermal image data. For example, in the temperature analysis, the maximum temperature, the average temperature, the minimum temperature, the difference between the maximum temperature and the average temperature in the same analysis region, the percentage content of the pixels with different temperatures in all the pixels in the analysis region, and the like are calculated, or a calculation relationship between the analysis regions, such as a temperature difference, and the like, may also be included, when the multi-frame thermal image data is analyzed, or a comparison relationship between the multi-frame thermal image data may also be included. As shown in fig. 3, according to the connector corresponding to S01, the upper and lower portions of the body sleeve corresponding to S02 and S03, the analysis result of the analysis value is obtained according to the specific industry criterion and the analysis mode edited by the analysis area number, such as S01MAX, S02MAX-S03 MAX; further, the analysis mode may include a diagnosis rule, for example, the diagnosis rule includes a comparison relationship between an analysis value obtained by the analysis region and the diagnosis value, and a diagnosis result corresponding to the comparison relationship; the analysis mode including the diagnostic rules may be edited, for example, analysis region S01 is normal for the linker site: s01MAX is less than or equal to 80 ℃; attention is paid to: s01MAX is more than 80 ℃ and less than 100 ℃; the method has the following defects: s01MAX is more than or equal to 100 ℃; the analysis zones S02, S03 correspond to the cannula sites: and (3) normal: s02MAX-S03MAX is less than or equal to 1 ℃; attention is paid to: the temperature is more than 1 ℃ and less than S02MAX-S03MAX and less than 2 ℃; the defect is less than or equal to S02MAX-S03MAX at the temperature of 2 ℃; this makes it possible to obtain an analysis result representing a diagnosis result and determine the state of the subject.

Taking temperature analysis as an example to illustrate an example of obtaining an analysis result, based on the control of the control unit 11, the image processing unit 2 performs predetermined processing such as correction and interpolation on thermal image data obtained by shooting by the shooting unit 1, for example, extracts thermal image data in a set analysis area based on a position parameter of the analysis area in the infrared thermal image, performs conversion processing of a temperature value, obtains temperature values corresponding to the thermal image data, and then performs analysis calculation on the obtained temperature values according to an analysis mode. For example, the maximum value is calculated, and the maximum temperature value is extracted as the analysis result of the analysis area. The thermal image data is converted into a temperature value through a predetermined process, for example, the temperature value is obtained through a predetermined conversion formula according to a radiation coefficient, an ambient temperature, humidity, a distance from the thermal image device 13, and the like of the set object and a conversion coefficient between the thermal image data (for example, an AD value) and the temperature. Various embodiments are also possible, for example, the maximum temperature value can be converted according to the AD value of the maximum value, the manner of analyzing the thermal image data to obtain the temperature analysis result is known to those skilled in the art, and detailed descriptions of other embodiments are omitted.

The analysis result can have a plurality of situations according to different analysis modes.

In one example, the analysis result may be an analysis value corresponding to each of one or more analysis regions of the thermal image data of the same frame; for example, in the analysis areas S01, S02, and S03 in fig. 3, the thermal image data areas (for example, the thermal image data in the analysis area, or the thermal image data of the pixels where the lines of the analysis area are located) determined by each analysis area are sequentially subjected to temperature value conversion and analysis, so as to obtain the analysis results of the analysis values of the maximum temperature values S01MAX, S02MAX, and S03MAX of each analysis area.

In another example, the analysis result may be an analysis value corresponding to each of a plurality of analysis regions of the same frame of thermal image data, and the analysis result of the obtained analysis value is calculated according to a mutual calculation relationship among some or all of the analysis regions; for example, the calculated relationship S02MAX-S03MAX between the analysis regions S02, S03 in FIG. 3, to obtain the analysis results of the thermal image data.

In another example, the analysis result may be an analysis result obtained based on analysis values of the multi-frame thermal image data, such as analysis values respectively obtained according to each frame of the multi-frame thermal image data, according to a comparison relationship between the analysis values and each other; for example, three frames of thermal image data of the electric power equipment, each including three phases of the object thermal image A, B, C, are compared with each other based on the highest temperature in each prescribed analysis area, and the analysis result of the analysis value of the maximum temperature difference between the analysis values of the multiple frames of thermal image data is obtained.

In another example, the analysis result may be an analysis result of an analysis numerical value obtained by calculating a relationship between the analysis numerical value obtained in the above-described embodiment and another predetermined parameter. For example, the power industry calculates the relative temperature difference of hot spots, and the temperature value of the related environment reference body; note: relative temperature difference is (hot spot maximum temperature-normal phase maximum temperature)/(hot spot maximum temperature-temperature of environmental reference).

In another example, the analysis result may be an analysis result expressed as a diagnosis result obtained by performing comparative analysis on a comparison relationship between the analysis value obtained in the above embodiment and a predetermined diagnosis value. For example, S01 MAX: 90, the diagnostic result obtained is "focus"; the diagnosis result can also be represented in various forms such as a code number. In some cases, comparing the diagnostic result with a prescribed value can increase the speed of the comparison process.

In another example, the analysis result is a combination of a plurality of items of the above cases.

The above-described example is not intended to be a limitation on the embodiment of the analysis process, and various embodiments are possible, and the embodiment of the temperature analysis result is described above by way of example, but not limitation, and the thermographic analysis may not necessarily be performed by conversion into a temperature value depending on the application, and may be performed by conversion into a radiant energy value, a gray scale value, a radiation rate value, or the like. The present invention is equally applicable to these situations. The manner of analyzing the thermal image data to obtain the analysis result is well known to those skilled in the art, and detailed descriptions of other embodiments are omitted.

The control unit 11 is a comparison unit for comparing the analysis result with a predetermined value; the prescribed value may have various embodiments, and may be, for example, a fixed value (e.g., a diagnostic value included in the analysis mode); for example, the analysis result of one of the analysis regions may be compared with the analysis result of another analysis region in a plurality of analysis regions related to the thermal image data; for example, a combination of a fixed value and a non-fixed value may be included; the prescribed value may be one or more; or may be a range of values of a predetermined value. For example, when there are a plurality of analysis results of the thermal image data, the predetermined values to be compared with the plurality of analysis results are the same number and correspond to the plurality of analysis results. The comparison process of the comparison unit may include, for example, one or more of the following cases:

for the comparison processing of the analysis result of one frame of thermal image data with the specified value, in one example, the specified value may be a fixed specified value corresponding to a specific analysis region, for example, a diagnostic value included in the analysis mode; in another example, the specified value corresponding to a specific analysis region is the analysis result of another analysis region; in still another example, the predetermined value may be fixed in correspondence with an analysis result obtained by the plurality of analysis areas according to a specific relationship; in yet another example, a combination of one or more of the above; in yet another example, the comparison between the analysis result obtained as a weighting of the plurality of analysis results in the above cases and the prescribed value is made. When the analysis result of one frame of thermal image data is one, one or more specified values corresponding to comparison can be provided; when the analysis result of one frame of thermal image data is multiple, one or more corresponding comparison specified values can be provided;

for the comparison processing of the analysis result of the multi-frame thermal image data and the specified value, in one example, the analysis result obtained by each frame in the multi-frame thermal image data may be compared with the corresponding specified value; in another example, the total analysis result of the multi-frame thermal image data may be obtained according to the analysis values respectively obtained by the multi-frame thermal image data, and then compared with the specified value; in another example, the analysis results obtained by the multi-frame thermal image data may be compared with each other as specified values; in another example, the comparison between the obtained analysis result and a predetermined value is calculated by adding the weights of a plurality of analysis results according to the above cases; in yet another example, a combination of one or more of the above; when the analysis result of the multi-frame thermal image data is one, one or more corresponding specified values can be provided; when the analysis result of the multi-frame thermal image data is multiple, one or more corresponding specified values can be provided.

The control part 11 is used as a determination part and can determine the presentation state of the prompt identifier and/or the analysis area and/or the first analysis result related to the thermal image data according to the comparison result; and/or a prompt relating to other thermal image data related to the thermal image data identifies and/or analyzes the presentation status of the area and/or the first analysis result.

The prompting mark, such as an arrow indicating mark obtained according to the position parameters of the analysis area, is used for prompting the analysis part; the first analysis result, for example corresponding to the analysis area, may be the same as or different from the comparative analysis result; the presentation state includes at least one of parameters such as whether the analysis area and/or the prompt mark and/or the first analysis result are displayed or not, display position, shape, color, transparency, flicker, size, line type and the like.

The presentation status, for example, the presentation status in the infrared thermal image obtained from the thermal image data, such as the presentation (e.g., display) status in the infrared thermal image displayed on the display, may also be used to determine the presentation (e.g., display) status in the infrared thermal image in the report or report by prompting the identification and/or analysis area and/or the first analysis result when the report or report is generated or output. In addition, the presence status, e.g., in an information bar, report, etc., is presented.

And determining the presentation state in the infrared thermal image obtained from the frame of thermal image data according to the corresponding relation between the obtained analysis result, the corresponding analysis area and/or the prompt mark and/or the first analysis result and the presentation state according to the comparison result obtained by comparing the analysis result of the thermal image data with the specified value and the presentation state. The prompt identifier corresponding to the obtained analysis result, for example, the prompt identifier is an arrow indicator identifier obtained according to the position parameter related to the analysis area, and the like.

Preferably, the presentation state of the analysis area and/or the prompt sign and the like related to the analysis result is decided; an analysis area or the like relating to the analysis result may be one to which the analysis result corresponds, such as to obtain the analysis result based on the analysis area; but it is also possible to have parts thereof, for example, the analysis results are obtained based on two analysis areas, but one of them may be displayed.

In other examples, the present state of another analysis area or the like may be determined even if the analysis area is not related to the analysis result to be compared.

But not limited thereto, the method may also be used for determining the presentation state of the prompt identifier and/or the analysis area and/or the first analysis result corresponding to other prescribed thermal image data in the infrared thermal images obtained from other prescribed thermal image data. Specified thermal image data, for example other thermal image data, e.g. group-wise, same type, etc., related to the frame of thermal image data from which the analysis result was obtained; the presentation status of the respective related prompt identification and/or analysis area in each frame can be determined according to the condition of the presentation status.

In one example, there are three frames of thermal image data corresponding to A, B, C three phases, and when the analysis result of the phase a exceeds the specified range, it is determined that the analysis areas corresponding to the same portions of the three frames of thermal image data are presented (e.g., displayed) for observation and comparison. Therefore, when a defect in one frame of thermal image data is found, a user can conveniently compare the thermal image data with the same group of thermal image data. The analysis areas corresponding to the same parts can be obtained according to the related information of the analysis areas, such as related numbers and part information.

The other thermal image data related to the thermal image data may be determined according to the associated information of the thermal image data, for example, according to a determination condition, which may be determined according to the associated information as follows: subject information, location, region (e.g., device area), type, other phases in the same set of two-phase or three-phase subjects, one or more of component, part, angle, type of reference image, time sequence, phase classification, wherein one or more of them are the same and/or different; preferably, the determination condition is configurable by a user.

In one example, the analysis area and/or the presentation flag and/or the presentation state of the first analysis result related to the analysis result may be determined based on a correspondence between the comparison result of the analysis result and the predetermined value and the presentation state. As in the table according to fig. 4, the analysis result is compared with the diagnostic value in accordance with the comparison relationship to obtain a comparison result, and the presentation state of the analysis region is determined based on the display parameters of the analysis region and the like corresponding to the comparison result.

Preferably, the analysis result exceeding a predetermined value range (for example, an upper limit larger than the predetermined value, for example, a lower limit smaller than the predetermined value, or the like) is displayed in the corresponding analysis area and/or mark.

Further, the control unit 11 functions as a presentation unit for performing presentation control based on the presentation flag and/or the analysis region and/or the presentation state of the first analysis result determined by the determination unit. For example, the presentation part comprises a display control part which controls the display part to display the infrared thermal image and the analysis area determined by the determination part to be displayed in the infrared thermal image; for example, the presentation unit includes a report generation unit that generates a thermal image report or report in which the thermal infrared image and the analysis area determined by the determination unit to be located in the thermal infrared image are presented.

An example of the comparison relationship between the analysis region configuration data, the analysis pattern, the predetermined value corresponding to the analysis result obtained for the analysis region in accordance with the analysis pattern, the comparison relationship between the analysis result and the predetermined value, and the correspondence relationship between the display parameters will be described with reference to the table shown in fig. 4. The look-up table may be prepared in advance or stored in the storage medium by user input. Preferably, there is a configuration section for configuring one or more of the contents in fig. 4. I.e. rendering conditions related to the rendering and/or parameters related to the rendering state may be configured. The presentation condition includes, for example, a comparison between the analysis result and a predetermined value, and a corresponding presentation parameter (e.g., a display parameter).

In example 1, the storage medium stores data related to analysis region display control, and as shown in table 4 of fig. 4, a comparison relationship, a predetermined value (in this example, a diagnostic value), and display parameters are defined for analysis results obtained by analyzing regions S01, S02, and S03 in accordance with a predetermined analysis pattern, respectively; the analysis mode comprises an analysis mode 1 for analyzing to obtain an analysis numerical value; taking the presentation control of S01 as an example, the analysis mode 1 is to analyze the highest temperature in S01, and when SO1MAX is less than or equal to 80, the analysis area S01 is not displayed; when 80 < SO1MAX < 100, an analysis area S01 is displayed, the color is yellow, and the opacity is superposed in the infrared thermal image (the transparency is 1); when SO1MAX is larger than or equal to 100, the analysis area S01 is displayed, the color is red, and the opacity is superposed in the infrared thermal image (the transparency ratio is 1) and flickers. Thus, the display state of the analysis area in the analysis area can be determined according to the analysis result. Furthermore, the diagnosis result can be correspondingly stored in the table 4 so as to facilitate diagnosis; according to the result of the analysis numerical value obtained by analysis, comparing the diagnostic value with the comparison relation to obtain a diagnostic result; furthermore, the diagnosis rules may also include diagnosis bases, defect types, defect degrees, processing suggestions and other related information related to diagnosis.

The specific operation and control flow of embodiment 1 will be described in detail below. The application scene photographs, for example, a subject of a substation. After the power is switched on, the control part 11 initializes the internal circuit, and then enters a shooting mode, that is, the shooting part 1 shoots to obtain thermal image data, the image processing part 2 carries out specified processing on the thermal image data shot by the shooting part 1 and stores the thermal image data in the temporary storage part 6, and the control part 11 executes control on the display control part 3, so that the infrared thermal image is continuously displayed on the display part 4 in a dynamic image form.

The control procedure of embodiment 1 is explained with reference to the flowchart of fig. 5. Fig. 6 is a display example of an analysis area set before analysis and a display interface after analysis of a subject thermal image based on the analysis area.

Step A01, setting an analysis area; the analysis regions are set as analysis regions S01, S02, S03 shown in fig. 6 (a).

In one example, the analysis area is set based on a user operation; the user can select the composition data of the analysis area and input the position parameters (such as position, or also including size, or also including rotation angle, etc.) of the analysis area in the infrared thermal image, the numerical value of the specific position parameter can be input through the key of the operation part 10, or the position of the set analysis area is moved through the operation part 10 to input the position parameters; preferably, the position parameters are set by means of the touch screen 3. The user sets the analysis regions S01, S02, S03 based on the displayed subject thermal image; and may correspondingly set the contents as shown in fig. 4.

In another example, the analysis mode corresponding to the content shown in fig. 4 (or further including the analysis region configuration data, or further including the specified value corresponding to the analysis result obtained according to the analysis mode, or further including the display parameter corresponding to the comparison result) may be displayed on the display portion in an understandable manner, and the user may select the corresponding analysis region configuration data therefrom to set in the infrared thermal image; as shown in fig. 7, the user may select from the candidate marks 701, 702 and then set in the infrared thermography, wherein when the mark 702 is selected, an analysis area comprising two frames may be set.

In still another example, the object information and its associated analysis region configuration data and the position parameter of the analysis region are stored in advance, and the analysis region is set based on selection of object information corresponding to the captured object.

Then, analysis processing may be performed, and the thermal image data may be analyzed according to the corresponding analysis mode based on the analysis regions (including the analysis regions S01, S02, S03) of the position parameters to obtain an analysis result. In one example, in a state where the analysis area is located in the subject thermal image as shown in fig. 6(a), a key representing an analysis instruction is pressed to perform analysis processing so as to ensure the accuracy of analysis data. In another example, the infrared thermography may be frozen for analysis area setting and subsequent analysis.

A step a02 in which the control unit 11 compares the obtained analysis result with a predetermined value (in this example, the predetermined value is a diagnostic value) based on the comparison relationship;

and at step a03, the control unit 11 determines the presentation state of the analysis area;

assume that the same analysis results as fig. 3 were obtained; the present state of the analysis area may be determined according to the comparison result of the analysis result with the prescribed value, and according to the display parameter of the analysis area corresponding to the comparison result as shown in fig. 4, and may be 90 ℃ or more than 80 ℃ or less than 100 ℃ according to S01 MAX; thus, S01 appears yellow; when the temperature difference between S02MAX and S03MAX is less than 1 ℃, the analysis regions S02 and S03 are not displayed, as shown in FIG. 6 (b).

Further, an analysis mode related to the obtained analysis result may be displayed, and when the analysis mode includes the diagnosis result, it is preferable that the diagnosis result of the defective portion may be displayed; the diagnosis result, such as the diagnosis conclusion, may further include a diagnosis threshold, a diagnosis basis, a defect type, a defect degree, a treatment recommendation, and the like related to the diagnosis, and these related information may be stored in association with the diagnosis rule in advance, and may be notified in a manner that a user can perceive, such as text.

Further, the control unit 11 may be a notification unit, for example, a display unit, which displays a change in characters, images, or the like, a light generated by an indicator, a voice prompt, a vibration, or the like, and may be included as a notification unit as long as the user can perceive the change.

Further, another example is shown in fig. 6 (c); the system also can be configured to display a corresponding identifier without displaying an analysis area corresponding to the analysis result, and the identifier can determine the position of the analysis area according to the position parameter of the analysis area in the infrared thermal image; therefore, the shielding of the thermal image concerned part is less, and the judgment of a user is facilitated. For the analysis area not shown, the words "other normal" can be further labeled, which is easy for the user to understand,

an example shown in FIG. 6 (d); the analysis area corresponding to the other normal can be configured to be displayed, and the analysis area corresponding to the other normal can be separately displayed.

In the example shown in FIG. 6(e), assuming that S01MAX is 50 ℃ and S02MAX-S03MAX is 4 ℃ and is greater than 2 ℃, analysis regions S02, S03 relating to the analysis results are displayed; when there are a plurality of analysis regions relating to the analysis result, they may be displayed in both of the red color and the red color as in S02 and S03, and not displayed when S01MAX is 80 ℃ or lower.

As an example shown in fig. 6(f), when there are a plurality of analysis areas related to the analysis result, as in S02 MAX: 24 ℃; s03 MAX: 20 ℃; it may also be configured to display one or a part thereof, such as S02, S02 in the analysis region S03 related to the analysis result, instead of S03. When there is a comparison between analysis regions to obtain an analysis result, the analysis region corresponding to the larger and/or the smaller thereof may be displayed, and the analysis result of the analysis region corresponding to the comparison may be taken as the prescribed value or one of them.

In step a05, if the analysis result does not exceed the specified value range, only the infrared thermal image is displayed, so that the user can shoot the next object without spending time on the current thermal image. When photographing an object of the same kind as A, B, C three-phase, after the photographing of a-phase is completed, the photographing of the latter two-phase can be continued according to the set analysis region.

In step a06, the control unit 11 detects exit? If not, the process returns to the step A01, the newly obtained thermal image data is analyzed according to the set analysis area, and the analysis result is stored in the specified area of the temporary storage unit 6 in place of the previous analysis result. The subsequent steps are repeated, reflecting the analysis of the dynamic thermal image data obtained by the continuous shooting and the display control of the analysis area.

As described above, in embodiment 1, the display state of the prompt mark and/or the analysis area and/or the first analysis result in the infrared thermal image is determined based on the comparison of the analysis result with the predetermined value, thereby facilitating the observation by the user. The method can reduce the shielding of the analysis area on the thermal image of the shot object to the greatest extent so as to influence the observation of the thermal image by a user, and can prompt the user to pay attention to the analysis area or the analysis part which is observed and accords with the specific presentation condition, so that the shooting speed of the user is improved, and the operation is simple. Therefore, the common user can achieve a good shooting skill level. The problems of the prior art are solved.

The control part 11 serving as a recording part responds to the recording instruction and performs associated recording on the specified recording information and the thermal image data acquired by the acquisition part and/or the data acquired after the thermal image data is subjected to specified processing; the predetermined recording information includes information on the presence state determined by the determination unit. For example, it is suggested whether the identification and/or the analysis area and/or the first analysis result are recorded in association with the specified (e.g., corresponding) thermographic data, and the composition of the specified recording information during recording in association with the specified.

In one example of recording, the control unit 11 determines whether or not there is a recording instruction, and if the user presses the recording key 1 of the operation unit 10, the recording process may be performed, or the control unit 11 may automatically enter the recording process even without the recording operation based on other predetermined recording conditions, for example, a predetermined recording condition that the temperature value in the thermal image exceeds a predetermined threshold value.

For example, in the state as shown in fig. 6(b), it is specified that the recorded information includes the composition data of the analysis region S01 and the positional parameters of the analysis region S01 located in the infrared thermography, and only the information on the analysis region S01 may be recorded in association.

Preferably, the prescribed recording information includes the composition data of the analysis regions S01, S02, S03 and the position parameters respectively located in the infrared thermography; but the analysis region S01 and the analysis regions S02, S03 are recorded in a distinctive manner; various manners of facilitating subsequent parsing of the thermal image files to obtain information relating to the presentation may be implemented such that analysis regions S01 may be presented separately or analysis regions S01, S02, S03 may also be presented simultaneously. For example, S01 and S02, S03 are appended with different display parameters, for example, S01 is appended with "yellow"; and S02, S03 have no additional display parameters; for example, S01 and S02, S03 are labeled differently, for example, S01 is labeled "0"; s02 and S03 are added with '1'; for example, different recording states, S01 is stored in one specific storage area in the thermal image file, and S02, S03 are stored in another specific storage area in the thermal image file; preferably, the predetermined recorded information may further include an analysis result corresponding to the recorded analysis area.

The thermal image data acquired by the acquisition part and/or the data acquired after the thermal image data is subjected to specified processing. For example, thermal image data (frames) obtained by reading signals by an infrared detector in response to the time of recording the indication (or a prescribed time thereafter); for example; responding to the thermal image data temporarily stored in the temporary storage part 6 at the time (or at a later specified time) indicated by the record, and specifying the thermal image data when multiple frames of thermal image data exist; for example, the thermal image data in the above case is data obtained by performing predetermined processing (one or more of predetermined processing such as correction, interpolation, pseudo color, conversion to a temperature value, pixel reduction, compression, and the like); for example, a prescribed number of frames of thermal image data are recorded; for example, integral operation is performed on the multiple frames of thermal image data stored in the temporary storage unit 6 to obtain one frame of thermal image data after the processing; for example, one or more of thermal image data obtained in the above cases may be used, for example, image data including an array of temperature values of each pixel obtained by the thermal image data, and infrared thermal images.

An example of the related record is to add predetermined record information as information of thermal image data in a predetermined format; specifically, as controlled by the control unit 11, the thermal image data stored in the temporary storage unit is acquired, the image processing unit 2 performs predetermined compression processing on the thermal image data, associates predetermined recording information with the compressed thermal image data, generates a thermal image file, records the thermal image file in the memory card 8, and ends the processing. In another example, the prescribed recording information may also be recorded in an information file or an index file corresponding to or associated with the thermal image picture file. The essence of the associated record is to record the information required for subsequent presentation, so that the subsequent processing load can be reduced.

The storage medium to be recorded is not limited to the memory card 8, the flash memory 9, and the like, and may be a network destination to be communicated via the communication unit 4. Not limited to the thermal image device 13 with the shooting function, the embodiment 1 may also use a thermal image processing device as an example of the determining device for processing the selected thermal image file; such as a computer, a personal digital assistant, a display device used in cooperation with a thermal image device having a photographing function, and the like.

Example 2

Example 2 is a thermal image device 13 having the same structure as that shown in example 1, and is different from example 1 in that a reference image is displayed.

As shown in the table of fig. 8, the table is different from the table of fig. 4 in that the table further stores the object information and the associated reference image configuration data, information on the analysis region corresponding to the reference image, and the analysis pattern corresponding to the analysis region; the information related to the analysis region includes the composition data of the analysis region and the relative position relationship between the analysis region and the reference image, such as the position parameter (position, or one or more of the size and the rotation angle) of the analysis region in the reference image.

The information of the object is information related to the object, and can include information such as object identity information related to the object; the generated object indication information should allow the user to recognize and understand the corresponding object, such as information representing the specific self-attribute of the object, such as the location, type, number, etc. of the object; in the example of the power industry application, the subject information includes subject identity information related to a subject which can be distinguished and understood by a user, such as information representing the specific self-attribute of the subject, such as the location, type, number and the like of the subject; in one example, the subject information includes information representing a location (e.g., a substation, a device area), a type (e.g., a type such as a transformer, a switch, etc., or further including a voltage class, or further including a model, or further including a manufacturer, or further including a manufacturing lot, etc.), a phase (e.g., A, B, C phase), and the like of the subject; in another example, the subject information contains only information such as the type or model of the subject; further, information such as the subject-related attribution unit, voltage class, importance level, manufacturer, performance, and characteristics, past imaging or inspection history, manufacturing date, lifetime, and ID number may be included. The object information may have various configurations depending on the application.

The reference image is used for shooting for reference in shooting to align with a shot object, such as a cross line, and the preferred reference image embodies morphological characteristics of the shot object; the reference picture construction data is used to obtain a reference picture, and may be vector graphics data, dot matrix data, or both vector graphics data and dot matrix data.

The control flow of embodiment 2 is explained with reference to fig 9,

step B01, displaying the infrared thermal image and the reference image;

the control part 11 is used as a reference image display control part and is used for controlling the infrared thermal image generated by the thermal image data obtained by shooting to display a reference image, wherein the reference image embodies the specified morphological characteristics of the shot object; the morphological feature may be a morphological feature of the whole or a part of the subject. The reference image is displayed together with the infrared thermal image, for example, the reference image is combined in the infrared thermal image according to the specified transparency ratio according to the specified position parameters. As shown in fig. 10 (a).

The user can then adjust the shooting distance, angle, location, etc. of the subject thermal image IR1 according to the reference of the reference image, so as to achieve the matching state shown in fig. 10 (b).

The display unit 4 can display dynamic infrared thermal images, can display a predetermined amount of subject indication information based on the subject information stored in the storage medium, determines corresponding subject information according to the selection of the user on the subject indication information, and displays a reference image according to reference image configuration data associated with the subject information; in another example, the reference image is displayed by selecting it based on an icon of the displayed reference image.

In other examples, the correspondence relationship between specific keys and subject information may be preset, and the selection of the subject information is performed by operation of a specific key (such as a dial key).

And B02-B03, when an analysis instruction is received, for example, a user presses an analysis key, setting an analysis area of the newly acquired thermal image data and obtaining an analysis result. The analysis regions S01, S02, S03 are set, for example, based on the analysis region configuration data (configuration data of S01, S02, S03) associated with the reference image T1, the relative positional relationship of the analysis region to the reference image, and the positional parameters of the reference image in the infrared thermography, and analysis is performed based on the analysis patterns corresponding to the analysis regions S01, S02, S03 of the subject 1 as stored in fig. 8, assuming that the analysis result is obtained: s01MAX is 90 ℃, S02MAX is 20 ℃, S03MAX is 20 ℃, and S02MAX-S03MAX is 0;

a step B04 of comparing the diagnostic value with a predetermined value, in this example, the diagnostic value in the analysis mode corresponding to the analysis regions S01, S02, S03 is set as the predetermined value; determine whether greater than a predetermined value? If yes, go to step B06, if no, go to step B05;

according to the condition that S01MAX is 90 ℃, and the temperature is more than 80 ℃ and less than 100 ℃; s02MAX-S03MAX is less than 1 ℃ to determine the presentation state of the analysis regions S01, S02 and S03; for example, the display of the analysis area is controlled based on the comparison result between the analysis result and a predetermined value and based on the display parameter (table shown in fig. 8) of the analysis area corresponding to the comparison result.

And step B05, when the reference image T1 is not larger than the specified value, the infrared thermal image generated by the newly acquired thermal image data is displayed together.

Step B06, controlling an analysis area related to the analysis result, and displaying the analysis area and the infrared thermal image generated by the acquired thermal image data, as shown in fig. 10(c), when S01MAX is 90 ℃, more than 80 ℃, and less than 100 ℃, the analysis area is yellow, and the difference between S02MAX and S03MAX is less than or equal to 1 ℃, the analysis area is not displayed; and the reference image T1 may not be displayed, or may be displayed.

If not, the step B07 returns to the step B02 to repeat the subsequent processes.

As described above, when there is no thermal image data greater than the specified value, the infrared thermal image and the reference image are always displayed; when the thermal image data is larger than the specified value, the related analysis areas and the like are displayed, so that reference images related to more analysis areas can be adopted conveniently, more accurate and detailed analysis results can be obtained for more analysis areas, and the thermal image of the shot object is not shielded more; greatly improving the convenience of users and the accuracy of analysis. Obviously, the operation of the analysis by the user is not limited, and the display control of the analysis area may be performed on thermal image data (or partial thermal image data thereof) obtained by continuous shooting.

Example 3

The

above embodiments

1 and 2 are not limited to the thermal image device 13 with the shooting function, but may also be applied to thermal image processing devices (such as a computer, a personal digital assistant, a display device used in cooperation with the thermal image device with the shooting function, and the like) for processing thermal image files and the like.

Fig. 11 is a block diagram of the electrical structure of the thermal image processing apparatus 30. The thermal image processing apparatus 30 includes a CPU2 for performing overall control, and a RAM3, a display unit 4, a hard disk 5, an auxiliary storage unit 6, an operation unit 7, and a communication unit 8 connected to the CPU2 via a bus.

Referring to the external view of the thermal image processing device 30 shown in fig. 12, the thermal image processing device 30 may be a computer, a PDA, a dedicated display processing device, or the like.

A RAM3 temporarily stores various data temporarily generated by the execution of programs by the CPU 2.

The display unit 4, such as a liquid crystal display, performs display based on control of the CPU 2. Without being limited thereto, the display 4 may also be another display connected to the thermal image processing device 30, and the thermal image processing device 30 itself may have no display in its electrical structure.

The hard disk 5 stores therein a program for control and various data used in the control.

The auxiliary storage unit 6 is a storage medium such as a CD-ROM or a memory card, and a related interface.

The operation unit 7: for the user to give an instruction to the thermal image processing apparatus 30 or to input setting information, the CPU8 executes a corresponding program in accordance with an operation signal from the operation unit 7. The operation unit 7 is configured by, for example, a keyboard, a mouse, and the like, and may be operated by using a touch panel, a voice control unit, and the like, without limitation thereto.

The communication unit 8 is a communication device that connects the thermal image processing device 30 to an external device in accordance with a communication specification such as USB, 1394, or a network.

The CPU2 controls the overall operation of the thermal image processing apparatus 30, and the control program stored in the hard disk 5 causes the CPU2 to execute corresponding processing.

The CPU2 is used as an analysis section for obtaining analysis results related to the multi-frame thermal image data;

the CPU2 functions as a comparison section for comparing with a prescribed value based on the obtained analysis result;

the CPU2 serves as a determination unit for determining the presentation status of the prompt identifier and/or the analysis area and/or the first analysis result corresponding to each of the multi-frame thermal image data according to the comparison result of the comparison unit.

Further, the CPU2 functions as a selecting section for selecting the same group of multi-frame thermal image data. The same group of multi-frame thermal image data is selected, for example, according to time, a prescribed keyword in the associated subject information.

In the prior art, generally, a user needs to set an analysis area for multi-frame thermal image data to obtain an analysis result, and then, an analysis report and an analysis report are generated, and at this time, in order to reduce the display shielding of the analysis area on the infrared thermal image, the adjustment workload of the analysis area is very large. In particular, when the analysis results of the multi-frame thermal image data have a mutual comparison relationship, the adjustment workload becomes very troublesome.

For processing of multiple frames of thermal image data, if the analysis and comparison relationship between the thermal image data is not considered, such as the infrared thermal image shown in the display interface of fig. 13(a), the determination part determines that no analysis area is displayed on any frame of thermal image data according to the analysis result obtained by analysis, assuming that the analysis result is in accordance with the content shown in fig. 4.

In the power industry, analysis of some shot objects cannot be completed through analysis of single-frame thermal image data, and needs to be obtained through comparison of multi-frame thermal image data. When the frames of thermal image data may have a mutual contrast analysis relationship, the presentation state of the analysis area corresponding to each frame of the multi-frame thermal image data can be determined according to the analysis result obtained from the mutual analysis relationship and the corresponding specified value.

Not limited thereto, the determination section may determine one or more of the following items based on the comparison result,

1) at least one frame of the plurality of frames of thermal image data, and the related prompt identification and/or the presentation state of the analysis area, such as the presentation state in the infrared thermal image obtained in the frame.

2) And other thermal image data related to at least one frame in the multi-frame thermal image data, and related prompt identification and/or the presentation state of the analysis area, such as the presentation state in the infrared thermal images correspondingly obtained by the other thermal image data.

3) The multi-frame thermal image data, the related other thermal image data, and the presentation state of the related prompt identifier and/or analysis area, for example, the presentation state in the infrared thermal image obtained corresponding to the other thermal image data. For example, the method may be applied to thermal image data taken by another group of subjects of the same type in the same equipment area to facilitate comparison and viewing with each other based on prompt identification and/or analysis of the presence state of the area in relation to the thermal image data taken by the subjects of the same group.

4) In the multi-frame thermal image data, the presentation state of the area is identified and/or analyzed by the prompt related to each frame, for example, the presentation state in the infrared thermal image obtained by corresponding to each frame of thermal image data.

Preferably, the control unit 11 is used as a determination unit, and when performing mutual comparison and analysis on the multi-frame thermal image data, is configured to determine the presentation states of the prompt identifiers and/or the analysis areas and/or the first analysis results respectively corresponding to the multi-frame thermal image data according to the comparison result of the comparison unit. For example, a prompt identifier and/or an analysis area respectively associated with each frame of thermal image data is determined, and a presentation state in an infrared thermal image obtained from the corresponding thermal image data, the infrared thermal image may be an infrared thermal image displayed on the display, or an infrared thermal image in an infrared report (including reporting a printed infrared report, etc.).

The control flow of the present embodiment is explained with reference to fig. 13. Taking as an example the comparison of three-phase objects of the same group (A, B, C), in which an analysis region is assumed to be present at the inter-phase site versus the site having a temperature difference of more than 1.5 ℃; for easy viewing by the user.

After the thermal image analysis device 1 is started, the CPU2 implements its control to display a corresponding processing interface, and a user may determine multi-frame thermal image data to be processed by, for example, selecting a plurality of thermal image picture files stored in the auxiliary storage 6 or the hard disk 5; the infrared thermal image obtained by the thermal image data may not be displayed. In addition, the thermal image data selected by connecting the communication part 8 with an external device includes connecting with an external storage device or a thermal image shooting device to obtain the thermal image data to be processed. In one example, or the display of the interface has not been processed, a prescribed amount of thermal image data is automatically selected from the storage medium, for example, thermal image files in a memory card in the auxiliary storage unit are automatically selected.

Step C01, obtaining analysis results related to the multi-frame thermal image data;

determining thermal image data to be compared with each other; in one example, a user may select a plurality of thermal image picture files to be compared.

In a preferable mode, multi-frame thermal image data which are compared with each other can be determined according to the associated information of the plurality of thermal image picture files; for example, thermal image data for comparison may be determined based on having the same keyword. Taking a subject in the power industry as an example, the subject information generally includes information such as a subject location, a device type, and a phase; in one example, according to comparison of thermal image data associated with the same object information, historical comparison of the same object thermal image in different time ranges is realized subsequently; for example, comparison of thermal image data associated with part of the same keywords in the subject information, such as comparison of thermal image data associated with the same subject location and type information and meeting a specified time range (like one day), realizes inter-phase comparison of three-phase subject thermal images with different phases.

Then, obtaining an analysis result corresponding to the multi-frame thermal image data; in one example, respective analysis values are obtained through analysis areas respectively arranged on multiple frames of thermal image data, and then the analysis values of the multiple frames of thermal image data are compared and analyzed to obtain analysis results obtained through comparison among the multiple frames of thermal image data.

Assuming that a difference in comparison between S02MAX (phase a), S02MAX (phase B), and S02MAX (phase C) is calculated, and a difference in comparison between S03MAX (phase a), S03MAX (phase B), and S03MAX (phase C) is calculated; as the analysis result of multi-frame thermal image data; the analysis regions for comparing the analysis results with each other may be set by the user, or may be specified by the same number or analysis regions associated with the same part information or the like.

A step C02 of comparing the analysis result obtained above with a predetermined value (1.5);

step C03, according to the comparison result; an analysis region S02 of thermal image data (phase A) and an analysis region S02 of thermal image data (phase C) that exhibit an analysis result greater than a prescribed value are determined.

This may be followed as shown in fig. 13 (b). The determined information relating to the presentation status may also be used to form a record associating prescribed record information with the corresponding thermographic data, for example for generating a thermographic report.

Although the present invention is shown in embodiment 3, the thermal image processing device 30 is used as an example of the determination device for processing a plurality of thermal image files; such as a personal computer, a personal digital processing device and the like, but also can be applied to a thermal image shooting device with a thermal image shooting function to process a plurality of thermal image picture files or thermal image video files played back.

Example 4

In the prior art, as shown in fig. 3, when a user needs to carefully observe the positions indicated by S01, S02, and S03, the user needs to remove the analysis region or change the display attribute of the analysis region, but the user has to perform the subsequent recovery operation; but when all are not displayed, the judgment of the user is influenced; the above-described embodiments can present an analysis region and the like that require the user to observe with attention, but there are also preferred embodiments.

Preferably, an adjustment unit is provided for adjusting and changing parameters related to presentation, such as analysis regions, acquisition modes related to analysis results (for example, factors related to analysis regions such as the shape, size, position parameters, number, and the like of the analysis regions, factors related to analysis modes such as the composition of analysis modes, diagnostic values, and the like), predetermined values (for example, a threshold range of the predetermined values), a comparison relationship between the analysis results and the predetermined values, and parameters related to presentation such as display parameters of the analysis regions;

when the user changes the factors related to the presentation by adjusting the changing part, the determining part determines the presentation state of the prompt mark and/or the analysis area and/or the first analysis result related to the thermal image data according to the changed factors and the comparison result.

For example, in the state shown in FIG. 3, S01, S02, S03 are displayed in the infrared thermal image, and when the user selects the site displaying "focus" and "defect", only S01 will be displayed in the infrared thermal image.

More preferably, the adjusting unit adjusts the predetermined value; one or more prescribed values may be adjusted to change the presentation state, for example, to change the display state of one or more analysis regions in the infrared thermography. When a user needs to carefully observe a micro temperature difference part in a shot thermal image, the specified value is adjusted and changed, so that the purpose of timely displaying or not displaying an analysis area according to the specified value can be achieved, and the analysis and observation of single-frame thermal image data and batch multi-frame thermal image data have excellent use effects. For example, in the state shown in fig. 13(b), when the user further changes the predetermined value, the analysis region displaying different temperature differences between the different phases may be corresponded, for example, when the predetermined value is 1.1, S02, S03 of the a phase, S02, S03 of the C phase may be displayed.

As shown in fig. 15; when the user can adjust the cursor 1501 in the displayed specified value range bar 1500, the effect is better; taking the temperature difference between A, B, C three phases S02MAX, corresponding to a prescribed value as an example, assume that an analysis region S02 configured to display a temperature difference greater than the prescribed value of the cursor position;

as shown in fig. 15(a), when the cursor 1501 is adjusted to be located at about 0.3 of the specified value range bar 1500, analysis regions S02 in A, B, C three-phase infrared thermography are all displayed;

as shown in fig. 15(b), when the cursor 1501 is adjusted to be located at about 1.5 of the specified value range bar 1500, an analysis region S02 in the A, C-phase infrared thermal image is displayed;

as shown in fig. 15(c), when the cursor 1501 is adjusted to be located at about 2.3 of the specified value range bar 1500, at this time, no analysis region S02 in the A, B, C three-phase infrared thermal image is displayed;

obviously, the operation of a user is very convenient, the presenting effect is very intuitive, the method is particularly suitable for distinguishing, analyzing and observing the micro temperature difference, the method is suitable for single-frame thermal image data, and the intuition and convenience of a large amount of thermal image data of the same type are better embodied for comparative observation.

Example 5

In the present embodiment, the analysis section is configured to obtain an analysis result related to the thermal image data based on the array analysis area; a comparison unit for comparing the analysis result with a predetermined value; the determining part is used for determining the presentation state of the prompt identifier and/or the analysis area related to the thermal image data according to the comparison result; and/or a prompt associated with other thermal image data associated with the thermal image data identifies and/or analyzes a presence status of an area. May be used for continuous monitoring applications.

In practical application, the infrared image has a plurality of different types of detected bodies; for example, fig. 16 is an infrared image of a converter valve tower in the power industry, which includes a plurality of rows of a measured object a (an electronic board, the normal operating temperature is 30-50 degrees), a measured object B (the normal operating temperature is 50-70 degrees), a measured object C (the normal operating temperature is 80-90 degrees), and the like; obviously, when the presentation condition is set to be presented (alarm) at 90 degrees or more, even if the measured objects a and B exceed the normal operating temperature, no alarm, that is, an alarm is missed. If the temperature of the presentation condition is set to be low, false alarm is easy. If the corresponding analysis area and the presentation condition can be set for the tested objects with different presentation conditions, the above situation can be avoided.

The tested body A, the tested body B and the tested body C are mixed together; preferably, an array of X Y analysis zones as shown in figure 17 may be provided; in other examples, a specific area may be designated to set the arrayed analysis areas, such as 6 × 5 arrayed analysis areas set in the designated area 500 shown in fig. 18; preferably, in the arrayed analysis regions set in the infrared image, a further arrayed analysis region is set by specifying the analysis region; preferably, the display is magnified so that the user can see the details in the image and the array of subdivided analysis areas. Preferably, the arrayed analysis regions are arranged next to each other, as shown in fig. 17; in other examples, some or all of the analysis areas in the array of analysis areas may be spaced apart from one another; and the analysis area is not limited to a frame shape, but may be other shapes such as a circular shape.

However, the array analysis area, as shown in the infrared image, as shown in fig. 19(a), greatly affects the observation of the infrared thermal image. Corresponding presentation conditions can be set for each of the array analysis regions according to the corresponding measured object; for example, for subject a: MAX > 50 ℃, subject B: MAX > 70 ℃, test subject C: when MAX is higher than 90 ℃, displaying an analysis area; or still further, different temperature thresholds are set according to the situation that the same measured body exceeds the allowable working temperature, for example, for the measured body A: MAX > 50 ℃, yellow analysis region and analysis results and "Note" are shown; if MAX > 70 ℃, red analysis area and analysis result and 'critical defect' are displayed and flash.

As shown in FIG. 19(c), the analysis frame and the corresponding analysis value (MAX: 58 degrees; attention!) meeting the presentation condition can be displayed according to the set presentation condition (for example, for the subject A: MAX > 50, for the temperature abnormality occurring in the subject A), so that the user can be clear at a glance about the existence of the alarm, wherein, when the presentation condition is not met, the infrared image is displayed, as shown in FIG. 19(b), and when the presentation condition is met, the infrared image and the prompt mark and/or the analysis area meeting the presentation condition are displayed;

therefore, in the continuous monitoring process of the detected body, the detailed array analysis areas and the corresponding presentation conditions of each analysis area are set; therefore, even if a plurality of detected bodies with different presentation conditions exist, an ideal monitoring alarm effect can still be achieved, namely omission and false alarm are not easy to occur.

As described above, in the present embodiment, the array analysis areas and the corresponding presentation conditions are adopted, so that the detailed analysis areas are convenient to set, and the operation is simple and standard; alarm is not easy to miss; further simplifying user operation and reducing user demand without undue reliance on experience accumulation and subjective mind.

Other embodiments

The present invention is not limited to the thermal image device with the photographing function, but may be applied to a thermal image processing device or the like that receives and processes thermal image data from the outside.

In

embodiments

1, 2, and 5, according to the analysis result related to the acquired thermal image data and the comparison result between the analysis result and the predetermined value, the presentation state of the prompt identifier and/or the analysis area related to the thermal image data in the infrared thermal image obtained from the thermal image data is determined. Obviously, the related prompt identifier and/or the related analysis area may also be determined according to the analysis result related to the obtained thermal image data and the comparison result of the specified value, and the presentation state in the infrared thermal image obtained from the thermal image data of the next frame (or the subsequent specified frame) of the time sequence of the frame of thermal image data may also be determined.

The numbers of the analysis regions S01, S02, S03 are not necessary for convenience of description of the embodiments; preferably, the numbers of the analysis regions S01, S02, S03 may be replaced by or appended to corresponding site information such as "joint", "upper sleeve part", "lower sleeve part".

The part information may be information of a part, an angle, a shooting part, and the like, for example; preferably, the information includes at least information of the component, the imaging region, or the component and the imaging region; in one example, the part information may be part information of the object such as a joint, a sleeve, a base, and the like; preferably, the location information may include various classification information suitable for industrial applications, such as voltage level, phase, etc.; in another example, the region information may be shooting region information of the subject such as up, middle, down, and the like; in another example, the location information may also be combined information of component information and shot locations or angles, such as upper sleeve portion, lower sleeve portion, etc., and the location information may also be a subdivision of component types such as a joint may be classified as a T-clamp, crimp tube, parallel groove clamp, etc.; for parts involving different analyses, comparisons, and the like, different part information should be prepared; various kinds of site information can be prepared in advance as necessary. The part information may include one or a combination of letters, icons, numbers, and the like.

Further, the example in which the thermal image device 13 and the thermal image processing device 30 are used as the determination device is described, and it is obvious that the determination device having the above function may be a component of the thermal image device 13 or the thermal image processing device 30.

The present invention can also be realized by a computer of a system or apparatus (or devices such as a CPU, MPU, or the like) that performs the functions of the above-described embodiments by separately and executing a program recorded on a storage device, and a method known by a computer of a system or apparatus by the steps thereof to perform the functions of the above-described embodiments by, for example, reading out and executing a program recorded on a storage device. For this purpose, the program is supplied to the computer, for example, via a network or from a recording medium of various types serving as a storage device (e.g., a computer-readable medium).

The present invention provides a computer program in which a digital signal formed by the computer program is recorded in a computer-readable recording medium such as a hard disk or a memory. After the program is operated, the following steps are executed:

a comparison step of comparing the analysis result with a prescribed value;

An example of the present invention also provides a readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer in a thermography arrangement to perform the steps of:

although particular functional blocks of the drawings may be implemented by hardware, software, or combinations thereof, there is generally no requirement that structures be provided which implement the functional blocks in a one-to-one correspondence; for example, a functional block may be implemented by one software or hardware unit, or a functional block may be implemented by multiple software or hardware units. In addition, the processing and control functions of some or all of the components in embodiments of the present invention may also be implemented using dedicated circuits or general purpose processors or programmable FPGAs.

In addition, the method is not limited to the application of the power industry, and is also suitable for application in various industries of infrared detection. The above description is only a specific example (embodiment) of the invention, and various illustrations do not limit the essence of the invention, and various embodiments can be configured into more embodiments by performing corresponding substitution and combination.

The above embodiments are exemplary embodiments, and it is understood that not necessarily all advantages of one or more of the above embodiments may be achieved in any one product which implements embodiments of the invention. Other modifications and variations to the specific embodiments can be practiced by those skilled in the art upon reading the present specification without departing from the spirit and scope of the invention.

Claims

1. The decision device comprises a decision unit for deciding, including,

the acquisition part is used for acquiring thermal image data;

the analysis part is used for obtaining an analysis result related to the thermal image data based on the analysis area according to the thermal image data obtained by the shooting part; the analysis area comprises an array analysis area;

the analysis area is provided with an analysis area number, and an analysis result of an analysis numerical value is obtained by editing an analysis mode according to the analysis area number;

the analysis mode represents the analysis of the thermal image data area determined based on the analysis area to obtain the analysis and calculation rule adopted by the analysis result and also comprises the calculation relation of each analysis area;

the analysis mode edits a calculation relation among the analysis areas based on the analysis area numbers;

the analysis mode is pre-associated and stored with an analysis area; the same analysis mode may be associated with at least one analysis region;

the analysis results of each analysis area are associated with the number of each analysis area, and the analysis results of each analysis area are calculated according to the calculation relationship edited by the number of each analysis area in the analysis mode to obtain the analysis results of the mutual relationship;

a comparison unit for comparing the analysis result with a predetermined value;

the determining part is used for determining the presenting state of one or a combination of a prompt identifier, an analysis area and a first analysis result related to the thermal image data at the corresponding position of the thermal image data according to the comparison result and based on the presenting conditions of different configured comparison results; or the other thermal image data related to the thermal image data and the prompt identifier, the analysis area and one or a combination of the first analysis result which are related to the other thermal image data are in a common presentation state;

respectively setting corresponding analysis areas and presentation conditions based on the detected body under different presentation conditions;

the recording part is used for performing specified processing on specified recording information and thermal image data and/or the thermal image data to obtain data association records; the predetermined recording information includes information on the presence state determined by the determination unit;

the associated record records information needed to facilitate subsequent presentation;

an adjusting section for adjusting the prescribed values, changing the presentation state by adjusting one or more prescribed values;

the determining device is a portable thermal imaging device.

2. The determination apparatus according to claim 1, wherein the analysis section is configured to obtain an analysis result obtained based on one frame of the thermographic data.

3. The determination apparatus according to claim 1, wherein the analysis section is configured to obtain an analysis result related to the plurality of frames of thermographic data; obtaining an analysis result based on the multi-frame thermal image data; the comparison part is used for comparing an analysis result obtained based on the acquired multi-frame thermal image data with a specified value; a determination unit configured to determine one or more of the following items based on the comparison result:

1) at least one frame in the multi-frame thermal image data, and a related prompt identifier and/or an analysis area and/or a presentation state of a first analysis result;

2) the other thermal image data related to at least one frame in the multi-frame thermal image data is related to the prompt identification and/or the analysis area and/or the presentation state of the first analysis result;

3) the multi-frame thermal image data, the related other thermal image data, the related prompt identification and/or the analysis area and/or the presentation state of the first analysis result;

4) and each frame in the multi-frame thermal image data is respectively related to the prompt identification and/or the analysis area and/or the presentation state of the first analysis result.

4. The decision device according to claim 1, wherein the comparison processing by the comparison section includes one or more of:

1) comparing an analysis result obtained from a frame of thermal image data with one or more specified values;

2) comparing a plurality of analysis results obtained by one frame of thermal image data with one or more specified values;

3) comparing an analysis result obtained by the multi-frame thermal image data with one or more specified values;

4) comparing a plurality of analysis results obtained by the multi-frame thermal image data with one or more specified values;

5) and comparing analysis results obtained by the multi-frame thermal image data with each other.

5. The determination apparatus according to claim 1, wherein there is a reference image display control section for controlling display of a reference image of a prescribed positional parameter in the infrared thermography; the reference image represents a predetermined morphological feature of the subject; the analysis area has a prescribed positional relationship with the reference image.

6. The decision device of claim 1, wherein thermal image data related to the thermal image data is determined based on correlation information of the thermal image data.

7. The decision device of claim 6, wherein the association information is based on: the subject information, the location, the area, the type, one or more of other phases, components, parts, angles in the same group of two-phase or three-phase subjects, the reference image, the time sequence, the time, the phase, the same and/or different determination conditions of one or more of them.

8. The decision device as claimed in claim 1, wherein there is an adjusting section for adjusting the prescribed value.

9. The determination device according to claim 1, having a configuration section that can configure one or more of:

1) determining conditions related to the thermal image data;

2) presentation conditions relating to presentation of thermographic data

3) A parameter associated with a presence state.

10. The decision device as claimed in claim 1, characterized in that when the presentation condition is not met, a thermography is displayed, and when the presentation condition is met, the thermography and the prompt identification and/or the analysis area and/or the first analysis result which are met are displayed.

11. The decision device according to any one of claims 1 to 10, wherein the presentation state of one or a combination of the analysis area, the prompt sign, and the first analysis result, which is relevant to the acquisition of the analysis result, is decided based on a correspondence between the comparison result of the analysis result with the prescribed value and the presentation state; the presentation state is a presentation state in an infrared thermal image, and the infrared thermal image is correspondingly obtained based on the thermal image data.

12. The method for determining, includes,

s121, a shooting step, namely acquiring thermal image data;

s122: an analysis area setting step for respectively setting corresponding analysis areas based on the measured objects under different presentation conditions according to the thermal image data acquired by the shooting part;

the analysis area comprises an array analysis area;

s123: an analysis mode setting step: editing an analysis mode based on the number of the analysis area to obtain an analysis result of an analysis numerical value; the analysis mode represents the analysis of the thermal image data area determined based on the analysis area to obtain the analysis and calculation rule adopted by the analysis result and also comprises the calculation relation of each analysis area;

s124: a presentation condition setting step of setting a corresponding presentation condition based on different analysis areas;

s125: an analysis step for obtaining an analysis result related to the thermal image data;

s126: a comparison step of comparing the analysis result with a prescribed value;

s127: a determining step, which is used for determining the presenting state of one or a combination of a prompt identifier, an analysis area and a first analysis result related to the thermal image data at the corresponding position of the thermal image data according to the comparison result and based on the presenting conditions of different configured comparison results; or the presentation state of one or a combination of other thermal image data related to the thermal image data and prompt identification, analysis area and first analysis result related to the other thermal image data;

a recording step, which is used for performing specified processing on specified recording information and thermal image data and/or the thermal image data to obtain data association records; the predetermined recording information includes information on the presence state determined by the determination unit;

the decision method is based on a portable thermal imaging device.