Method and device for treating burns by a thermal imaging camera

Abstract

Embodiments of the present invention provide a method and device for burn treatment of a thermal imaging camera. The method includes: obtaining a thermal imaging picture of the thermal imaging camera; detecting whether the thermal imaging picture shows that a high-temperature object appears in the picture of the thermal imaging camera; confirming that the thermal imaging picture shows that a high-temperature object appears in the picture, generating a burn alarm signal, and closing the shutter when the current shutter is not closed. In the embodiments of the present invention, after detecting a burn alarm signal, that is, after detecting that an object with high-energy radiation enters the picture, the shutter is immediately closed, thereby avoiding the risk of permanent burn of the sensor due to directly facing an object with high-energy radiation.

Description

[0001] This application is a divisional application of the application with the application date of June 11, 2019, application number 201910500156.9, and invention title: Thermal Imaging Camera Burn Treatment Method and Device. Technical Field

[0002] The present invention relates to the field of thermal imaging technology, and particularly to a thermal imaging camera burn treatment method and device. Background Art

[0003] An infrared thermal imaging camera is a camera that detects infrared energy in a non-contact manner and converts it into an electrical signal through a sensor, thereby obtaining an image screen and temperature information.

[0004] The sun or other objects with a temperature much higher than the infrared thermal imaging temperature measurement range will cause changes in the material properties of the sensor, resulting in abnormal images and inaccurate temperature measurement; when the high-temperature object moves out of the screen, since it takes time for the material properties of the sensor to recover, although non-uniformity correction has been performed on the image, burned marks will gradually appear in the collected screen.

[0005] In thermal imaging cameras, especially in temperature measurement products, in order to avoid being burned, the common practice is to cut in and out an attenuation device with a known attenuation coefficient (such as: a small hole or a uniform attenuation sheet), but this method can only achieve the expansion of one temperature range, and for the sun with a temperature of several thousand degrees, a large amount of energy still reaches the sensor, causing the sensor to be burned, so it cannot be used for the protection of the sun. There are also special methods for preventing burns from the sun, but this method only targets the sun and does not correct the burned sensor, which will lead to problems such as abnormal images and inaccurate temperature measurement. Summary of the Invention

[0006] Embodiments of the present invention propose a thermal imaging camera burn treatment method and device to achieve automatic and temperature-range-unlimited burn prevention treatment for thermal imaging cameras.

[0007] The technical solution of the embodiments of the present invention is realized as follows:

[0008] A thermal imaging camera burn treatment method, the method includes:

[0009] Obtain a thermal imaging picture of the thermal imaging camera;

[0010] Detect whether the thermal imaging picture shows that a high-temperature object appears in the picture of the thermal imaging camera;

[0011] Confirm that the thermal imaging picture shows that a high-temperature object appears in the picture, generate a burn alarm signal, and close the shutter if the current shutter is not closed.

[0012] While closing the shutter, it further includes: starting the non-uniformity correction timing of the protection mechanism, and when the timing duration reaches the preset non-uniformity correction timing duration of the protection mechanism, performing the non-uniformity correction operation.

[0013] After generating the burn alarm signal, it further includes:

[0014] A. When the user sets the shutter state, determine whether the actual state of the current shutter is consistent with the shutter state set by the user. If not, change the actual state of the current shutter to the shutter state set by the user, and go to step B; if consistent, directly go to step B;

[0015] B. Determine whether the actual state of the current shutter is closed. If so, start the non-uniformity correction timing of the protection mechanism, and when the timing duration reaches the preset non-uniformity correction timing duration of the protection mechanism, perform the non-uniformity correction operation.

[0016] Before closing the shutter when the current shutter is not closed, it further includes: detecting the burn alarm signal generated by the thermal imaging camera according to the burn protection detection period;

[0017] Moreover, the method further includes:

[0018] If the burn alarm signal generated by the thermal imaging camera is not detected within the burn protection detection period, then when the current shutter is closed, open the shutter.

[0019] While closing the shutter, it further includes: starting the closing timing. When the timing duration reaches the preset closing duration, open the shutter and eliminate the burn alarm signal.

[0020] The shutter is a double-setting shutter.

[0021] After generating the burn alarm signal, it further includes:

[0022] When the burn alarm signal is eliminated, if the current shutter is open, start the non-uniformity correction timing of the recovery mechanism. When the timing duration reaches the set non-uniformity correction timing duration of the recovery mechanism, perform the non-uniformity correction operation.

[0023] While generating the burn alarm signal, it further includes: setting a burn mark and setting the non-uniformity correction timing duration of the recovery mechanism to the first timing duration in the preset non-uniformity correction timing schedule of the recovery mechanism, where the preset non-uniformity correction timing schedule of the recovery mechanism contains a plurality of sequentially increasing timing durations arranged in order;

[0024] Moreover, when the burn alarm signal is eliminated, it further includes: determining whether there is a burn mark. If there is, perform the action of starting the recovery mechanism non-uniformity correction timing when the current shutter is open.

[0025] Moreover, after performing the non-uniformity correction operation when the timing duration reaches the set recovery mechanism non-uniformity correction timing duration, it further includes: determining whether the current recovery mechanism non-uniformity correction timing duration is the last timing duration in the preset recovery mechanism non-uniformity correction timing schedule. If so, eliminate the burn mark; otherwise, set the current recovery mechanism non-uniformity correction timing duration to the next timing duration in the preset recovery mechanism non-uniformity correction timing schedule, determine whether the thermal imaging camera generates a burn alarm signal. If not, return to the action of determining whether there is a burn mark.

[0026] A thermal imaging camera burn processing device includes:

[0027] A burn alarm module, configured to obtain a thermal imaging picture of the thermal imaging camera, detect whether the thermal imaging picture shows that there is a high-temperature object in the picture of the thermal imaging camera, confirm that the thermal imaging picture shows that there is a high-temperature object in the picture, and generate a burn alarm signal;

[0028] A burn processing module, configured to close the shutter when the burn alarm module generates a burn alarm signal and the current shutter of the thermal imaging camera is not closed.

[0029] The burn alarm module is further configured to eliminate the burn alarm signal when it detects that the shutter of the thermal imaging camera changes from closed to open.

[0030] The burn processing module is further configured to, when the burn alarm signal of the burn alarm module is eliminated and the current shutter of the thermal imaging camera is open, start the recovery mechanism non-uniformity correction timing, and perform a non-uniformity correction operation when the timing duration reaches the set recovery mechanism non-uniformity correction timing duration.

[0031] In an embodiment of the present invention, when it is detected that the thermal imaging camera generates a burn alarm signal, it is determined whether the current shutter is closed. If not, the shutter is closed, thereby realizing automatic anti-burn processing for the thermal imaging camera without temperature range limitation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a flowchart of a thermal imaging camera burn processing method provided by an embodiment of the present invention;

[0033] Figure 2Flow chart of the burn protection method for the infrared thermal imaging camera provided by the embodiment of the present invention;

[0034] Figure 3 Flow chart of the recovery method after the infrared thermal imaging camera is burned provided by the embodiment of the present invention;

[0035] Figure 4 Structural schematic diagram of the thermal imaging camera burn processing device provided by an embodiment of the present invention;

[0036] Figure 5 Structural schematic diagram of the thermal imaging camera burn processing device provided by another embodiment of the present invention. Detailed implementation manners

[0037] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] For easy understanding, the following explanations are given:

[0039] Shutter: A kind of uniform surface used in the thermal imaging camera to block the sensor, blocking the imaging information from the lens, so that the sensor is not interfered by the imaging information of the lens during correction.

[0040] Single-setting shutter: In the normal state, it is in the open state, and the shutter needs to be continuously powered on the control coil to be closed.

[0041] Dual-setting shutter: A shutter that can change its state by applying a short-time power supply to the control coil, that is, a shutter that can maintain the open or closed state without continuously powering on the control coil.

[0042] Burn alarm signal: An alarm message generated by the algorithm when a high-energy radiation object enters the picture, used to inform that there is a high-energy radiation object in the imaging picture.

[0043] Burn mark: Used to record the information that the current sensor is burned.

[0044] Non-uniformity correction (NUC, NonUniformity Correction): By blocking the imaging information from the lens in front of the image sensor, collecting and storing the non-uniform signal of the remaining thermal radiation, and then during normal imaging, using the stored non-uniform signal of the thermal radiation as background data to be removed, so as to obtain an imaging picture not interfered by the internal heat of the camera and make the lens output a normal picture.

[0045] The lens of the infrared thermal imaging camera consists of an image sensor, a shutter and other parts. The shutter is located in front of the sensor, so as to play the role of blocking the sensor for non-uniformity correction (NUC).

[0046] Figure 1 The following is a flowchart of the thermal imaging camera burn treatment method provided by the embodiments of the present invention, and its specific steps are as follows:

[0047] Step 101: Obtain a thermal imaging picture of the thermal imaging camera.

[0048] Step 102: Detect whether the thermal imaging picture shows that there is a high-temperature object in the picture of the thermal imaging camera.

[0049] Step 103: Confirm that the thermal imaging picture shows that there is a high-temperature object in the picture, generate a burn alarm signal, and when the current shutter is not closed, close the shutter, start the protection mechanism NUC timing, and when the timing duration reaches the preset protection mechanism NUC timing duration, perform the NUC operation.

[0050] In practical applications, in step 103, after generating the burn alarm signal, it further includes:

[0051] A. When the user sets the shutter state, determine whether the actual state of the current shutter is consistent with the shutter state set by the user. If not, change the actual state of the current shutter to the shutter state set by the user, and go to step B; if consistent, directly go to step B;

[0052] B. Determine whether the actual state of the current shutter is closed. If so, start the protection mechanism NUC timing, and when the timing duration reaches the preset protection mechanism NUC timing duration, perform the NUC operation.

[0053] In practical applications, in step 103, before closing the shutter when the current shutter is not closed, it further includes: detecting the burn alarm signal generated by the thermal imaging camera according to the burn protection detection period; and if the burn alarm signal generated by the thermal imaging camera is not detected when the burn protection detection period arrives, open the shutter when the current shutter is closed.

[0054] In practical applications, in step 103, when closing the shutter, it further includes: starting the closing timing, and when the timing duration reaches the preset closing duration, open the shutter and eliminate the burn alarm signal.

[0055] In practical applications, in step 103, after generating the burn alarm signal, it further includes: when the burn alarm signal is eliminated, if the current shutter is open, start the recovery mechanism NUC timing, and when the timing duration reaches the set recovery mechanism NUC timing duration, perform the NUC operation.

[0056] In practical applications, when generating a burn alarm signal, it further includes: setting a burn mark and setting the timing duration of the recovery mechanism NUC to the first timing duration in a preset timing schedule of the recovery mechanism NUC, where the preset timing schedule of the recovery mechanism NUC contains a plurality of sequentially increasing timing durations arranged in sequence;

[0057] Moreover, when the burn alarm signal is eliminated, it further includes: determining whether there is a burn mark. If there is, perform the action of starting the timing of the recovery mechanism NUC if the current shutter is open;

[0058] Moreover, after performing the NUC operation when the timing duration reaches the set timing duration of the recovery mechanism NUC, it further includes: determining whether the current timing duration of the recovery mechanism NUC is the last timing duration in the preset timing schedule of the recovery mechanism NUC. If so, eliminate the burn mark; otherwise, set the current timing duration of the recovery mechanism NUC to the next timing duration in the preset timing schedule of the recovery mechanism NUC, determine whether the thermal imaging camera generates a burn alarm signal. If not, return to the action of determining whether there is a burn mark.

[0059] Figure 2 The following is a flowchart of the method for protecting against burns of an infrared thermal imaging camera provided by an embodiment of the present invention, and its specific steps are as follows:

[0060] Step 200: Pre-configure a burn protection detection period on the infrared thermal imaging camera, and pre-configure protection mode options on the infrared thermal imaging camera: automatic mode and manual mode.

[0061] There are two states of the shutter: open and closed. When the protection mode is the manual mode, the state of the shutter is completely determined and set by the user, that is, the user sets the state of the shutter on the infrared thermal imaging camera, and the infrared thermal imaging camera performs an open or closed operation on the shutter according to the state of the shutter set by the user.

[0062] Step 201: When each burn protection detection period arrives, the infrared thermal imaging camera detects whether there is a current burn alarm signal. If so, perform Step 202; otherwise, perform Step 204.

[0063] After a high-temperature object enters the acquisition range of the infrared thermal imaging camera, the gray level of the image collected by the infrared thermal imaging camera will change. Therefore, it is possible to determine whether to generate a burn alarm signal by comparing the gray level of each pixel point of the image with a preset gray level threshold.

[0064] Step 202: The infrared thermal imaging camera determines whether the current protection mode is the manual mode or the automatic mode. If it is the manual mode, perform Step 206; if it is the automatic mode, perform Step 203.

[0065] Step 203: The infrared thermal imaging camera closes the shutter, initializes the protection mechanism NUC timing duration to the preset protection mechanism NUC timing duration, and proceeds to Step 206.

[0066] Step 204: The infrared thermal imaging camera determines whether the current protection mode is manual mode or automatic mode. If it is manual mode, execute Step 206; if it is automatic mode, execute Step 205.

[0067] Step 205: The infrared thermal imaging camera opens the shutter.

[0068] Step 206: The infrared thermal imaging camera determines whether the current shutter is closed. If so, execute Step 207; otherwise, return to Step 201.

[0069] Step 207: The infrared thermal imaging camera starts the closing timing and the protection mechanism NUC timing. When the protection mechanism NUC timing reaches the preset protection mechanism NUC timing duration, start to execute the NUC operation. When the closing timing reaches the preset closing duration, open the shutter, set the burn alarm signal to 0, and return to Step 201.

[0070] Considering that the operation of changing the shutter state (i.e., opening the shutter or closing the shutter) takes a certain amount of time, to avoid misjudgment of the actual state of the shutter during this operation time, in the embodiments of the present invention, a shutter set state parameter is added. And when the protection mode is manual mode, the value of this parameter is completely set by the user. When the protection mode is automatic mode, it is set by the infrared thermal imaging camera according to the actual situation. Specifically:

[0071] In Step 203, the infrared thermal imaging camera first sets the value of the shutter set state parameter to: the closing value, and then executes the operation of closing the shutter;

[0072] In Step 205, the infrared thermal imaging camera first sets the value of the shutter set state parameter to: the opening value, and then executes the operation of opening the shutter;

[0073] And, a Step 2052 is added between Step 205 and Step 206: The infrared thermal imaging camera determines whether the actual state of the current shutter is consistent with the shutter set state. If so, directly execute Step 206; otherwise, perform the corresponding opening or closing operation on the shutter according to the shutter set state to make the actual state of the shutter consistent with the shutter set state, and then execute Step 206.

[0074] Figure 2The process shown above is only applicable to infrared thermal imaging cameras with double-setting shutters. The reason is as follows: When controlling the closing of a single-setting shutter, it is necessary to energize the shutter coil. However, long-term energization of the coil will cause the temperature of the thermal imaging camera lens to rise, resulting in inaccurate temperature measurement and affecting the core function of such thermal imaging cameras. When the above process generates a burn alarm signal, an operation to close the shutter is required. Therefore, this process is not applicable to infrared thermal imaging cameras with single-setting shutters. For infrared thermal imaging cameras with double-setting shutters, the shutter can be controlled to be always open or closed, and the coil temperature will not rise due to continuous energization, thus not affecting the temperature measurement function. Therefore, after detecting that a high-energy radiation object enters the screen, the anti-burn treatment can be carried out through the above embodiments.

[0075] Through the above embodiments, when the infrared thermal imaging camera is in the automatic protection mode, if a burn alarm signal is detected, that is, after detecting that a high-energy radiation object enters the screen, the shutter is immediately closed, thus avoiding the risk of permanent burns to the sensor due to directly facing the high-energy radiation object. In addition, a NUC operation is performed during the closing process to correct the image abnormality and inaccurate temperature measurement caused by temporary burns, ensure the normal temperature measurement function of the camera when the shutter is opened again, and ensure the normalcy of the captured images.

[0076] After the infrared thermal imaging camera generates a burn alarm signal, in order to promptly repair the performance of the camera sensor, the embodiments of the present invention provide the following post-burn recovery scheme.

[0077] Figure 3 It is a flowchart of the post-burn recovery method for the infrared thermal imaging camera provided by the embodiments of the present invention, and its specific steps are as follows:

[0078] Step 300: Pre-configure a burn recovery detection period on the infrared thermal imaging camera and configure a recovery mechanism NUC timing schedule, which includes multiple sequentially arranged and gradually increasing recovery mechanism NUC timing durations.

[0079] The number of specific recovery mechanism NUC timing durations included in the recovery mechanism NUC timing schedule and the value of each timing duration can be determined according to the material characteristics of the infrared thermal imaging camera.

[0080] For two adjacent timing durations in the recovery mechanism NUC timing schedule, the latter timing duration is always greater than the former one. The reason is as follows: Each time a NUC process under the recovery mechanism is performed, it indicates that the infrared thermal imaging sensor material has been recovered for a period of time, and the recovery of the sensor material will slow down with the passage of time. Therefore, the timing durations in the recovery mechanism NUC timing schedule will gradually lengthen to reduce the number of times of opening and closing the shutter and extend the service life of the shutter.

[0081] Step 301: When the burn recovery detection period arrives, the infrared thermal imaging camera determines whether there is a current burn alarm signal. If so, step 302 is executed; otherwise, step 303 is executed.

[0082] The burn recovery detection period can be set to be the same as the burn protection detection period.

[0083] According to step 207, when the shutter changes from closed to open, the burn alarm signal is set to 0.

[0084] Step 302: The infrared thermal imaging camera sets the burn flag to 1, and sets the timing duration of the recovery mechanism NUC to the first timing duration in the timing schedule of the recovery mechanism NUC, and returns to step 301.

[0085] Step 303: The infrared thermal imaging camera determines whether the burn flag is 1. If so, step 304 is executed; otherwise, it returns to step 301.

[0086] Step 304: The infrared thermal imaging camera determines whether the current shutter is closed. If so, it returns to step 301; otherwise, step 305 is executed.

[0087] It should be noted that for an infrared thermal imaging camera with a single-setting shutter, since its shutter is open, therefore, this step 304 does not need to be executed. That is, when it is determined in step 303 that the burn flag is 1, step 305 is directly executed.

[0088] Step 305: The infrared thermal imaging camera starts the timing of the recovery mechanism NUC. When the timing duration reaches the currently set timing duration of the recovery mechanism NUC, the NUC operation is executed.

[0089] Step 306: The infrared thermal imaging camera determines whether the currently set timing duration of the recovery mechanism NUC is the last timing duration in the timing schedule of the recovery mechanism NUC. If so, step 308 is executed; otherwise, step 307 is executed.

[0090] Step 307: The infrared thermal imaging camera sets the timing duration of the recovery mechanism NUC to the next timing duration in the timing schedule of the recovery mechanism NUC, and returns to step 301.

[0091] Step 308: The infrared thermal imaging camera sets the burn flag to 0 and returns to step 301.

[0092] Setting the burn flag to 0 indicates that the current burn recovery process has been completed.

[0093] Figure 3 The shown process is applicable to both thermal imaging cameras with double-setting shutters and single-setting shutters.

[0094] After the above embodiments, after detecting that a high-temperature object enters the picture of the infrared thermal imaging camera, a burn alarm signal is generated, the burn mark is set, and the NUC operation is executed after the high-temperature object leaves the picture, so as to correct the problems of image abnormality and inaccurate temperature measurement caused by the change of the sensor due to material characteristics.

[0095] In addition, considering that the recovery of the sensor material slows down with the passage of time, a recovery mechanism NUC timing schedule including multiple sequentially arranged and gradually increasing timing durations is set, thereby reducing the number of times of opening and closing the shutter and extending the service life of the shutter.

[0096] Figure 4 The following is a schematic structural diagram of a burn processing device for a thermal imaging camera provided by an embodiment of the present invention. The device mainly includes: a burn alarm module 41 and a burn processing module 42, where:

[0097] The burn alarm module 41 is used to obtain the thermal imaging picture of the thermal imaging camera, detect whether the thermal imaging picture shows that a high-temperature object appears in the picture of the thermal imaging camera, confirm that the thermal imaging picture shows that a high-temperature object appears in the picture, and generate a burn alarm signal;

[0098] The burn processing module 42 is used to close the shutter when the burn alarm module 41 generates a burn alarm signal and the shutter of the current thermal imaging camera is not closed.

[0099] In practical applications, when the burn processing module 42 closes the shutter, it further includes: starting the protection mechanism NUC timing, and when the timing duration reaches the preset protection mechanism NUC timing duration, performing the NUC operation.

[0100] In practical applications, when the burn processing module 42 generates a burn alarm signal by the burn alarm module 41, it further includes:

[0101] A. When the user sets the shutter state, judge whether the actual state of the current shutter is consistent with the shutter state set by the user. If not, change the actual state of the current shutter to the shutter state set by the user, and go to step B; if consistent, directly go to step B;

[0102] B. Judge whether the actual state of the current shutter is closed. If so, start the protection mechanism non-uniformity correction timing, and when the timing duration reaches the preset protection mechanism non-uniformity correction timing duration, perform the non-uniformity correction operation.

[0103] In practical applications, before the burn treatment module 42 closes the shutter when the current shutter is not closed, it further includes: detecting the burn alarm signal generated by the burn alarm module 41 according to the burn protection detection period; and, if the burn alarm signal generated by the burn alarm module 41 is not detected when the burn protection detection period arrives, the shutter is opened when the current shutter is closed.

[0104] In practical applications, when the burn treatment module 42 closes the shutter, it further includes: starting the closing timing, and when the timing duration reaches the preset closing duration, opening the shutter and eliminating the burn alarm signal.

[0105] In practical applications, the burn alarm module 41 is further configured to eliminate the burn alarm signal when it detects that the shutter of the thermal imaging camera changes from closed to open; and,

[0106] The burn treatment module 42 is further configured to, when the burn alarm signal of the burn alarm module 41 is eliminated, if the current shutter is open, start the recovery mechanism NUC timing, and when the timing duration reaches the set recovery mechanism NUC timing duration, perform the NUC operation.

[0107] In practical applications, the burn treatment module 42 is further configured to, when the burn alarm module 41 generates a burn alarm signal, set a burn mark and set the recovery mechanism NUC timing duration to the first timing duration in the preset recovery mechanism NUC timing schedule, where the preset recovery mechanism NUC timing schedule contains a plurality of sequentially increasing timing durations arranged in order;

[0108] And, when the burn alarm signal of the burn alarm module 41 is eliminated, determine whether there is a burn mark. If there is, perform the action of starting the recovery mechanism NUC timing if the current shutter is open;

[0109] And, after performing the NUC operation when the timing duration reaches the set recovery mechanism NUC timing duration, it further includes: determining whether the current recovery mechanism NUC timing duration is the last timing duration in the preset recovery mechanism NUC timing schedule. If so, eliminate the burn mark; otherwise, set the current recovery mechanism NUC timing duration to the next timing duration in the preset recovery mechanism NUC timing schedule, determine whether the burn alarm module 41 generates a burn alarm signal. If not, return to the action of determining whether there is a burn mark.

[0110] Figure 5 FIG. is a schematic structural diagram of a thermal imaging camera burn treatment device provided by another embodiment of the present invention. The device mainly includes: a burn alarm module 51 and a burn treatment module 52, where:

[0111] The burn alarm module 51 is used to obtain the thermal imaging picture of the thermal imaging camera, detect whether the thermal imaging picture shows that there is a high-temperature object in the picture of the thermal imaging camera, and generate a burn alarm signal when it is confirmed that the thermal imaging picture shows that there is a high-temperature object in the picture; when it is detected that the shutter of the thermal imaging camera changes from closed to open, the burn alarm signal is eliminated.

[0112] The burn processing module 52 is used to start the NUC timing of the recovery mechanism when the current shutter is open when the burn alarm signal of the burn alarm module 51 is eliminated, and perform the NUC operation when the timing duration reaches the set NUC timing duration of the recovery mechanism.

[0113] In practical applications, the burn processing module 52 is further used to set a burn mark when the burn alarm module 51 generates a burn alarm signal, and set the NUC timing duration of the recovery mechanism to the first timing duration in the preset NUC timing schedule of the recovery mechanism, where the preset NUC timing schedule of the recovery mechanism includes a plurality of sequentially increasing timing durations arranged in order;

[0114] Moreover, when the burn alarm signal of the burn alarm module 51 is eliminated, it is judged whether there is a burn mark. If so, the operation of starting the NUC timing of the recovery mechanism when the current shutter is open is performed;

[0115] Moreover, after performing the NUC operation when the timing duration reaches the set NUC timing duration of the recovery mechanism, it further includes: judging whether the current NUC timing duration of the recovery mechanism is the last timing duration in the preset NUC timing schedule of the recovery mechanism. If so, the burn mark is eliminated; otherwise, the current NUC timing duration of the recovery mechanism is set to the next timing duration in the preset NUC timing schedule of the recovery mechanism, and it is judged whether the burn alarm module 51 generates a burn alarm signal. If not, the operation of judging whether there is a burn mark is returned.

[0116] An embodiment of the present invention also provides a non-transitory computer-readable storage medium. The non-transitory computer-readable storage medium stores instructions, and these instructions, when executed by a processor, cause the processor to execute the steps of the method as described in Figures 1 to 3 any one of the above.

[0117] An embodiment of the present invention also provides an electronic device, including the above-mentioned non-transitory computer-readable storage medium and the above-mentioned processor that can access the non-transitory computer-readable storage medium.

[0118] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A method for processing burns of a thermal imaging camera, characterized in that, the method includes: Obtaining a thermal imaging picture of the thermal imaging camera; If it is confirmed that a high-temperature object appears in the picture of the thermal imaging picture, when the current shutter is not closed, close the shutter and start the protection mechanism non-uniformity correction timing, and when the timing duration reaches the preset protection mechanism non-uniformity correction timing duration, perform a non-uniformity correction operation; the non-uniformity correction is: by blocking the imaging information from the lens in front of the image sensor, collecting and storing the remaining non-uniform thermal radiation signals, so that: during normal imaging, the stored non-uniform thermal radiation signals are removed as background data to obtain an imaging picture not interfered by the internal heat of the camera, and the lens outputs a normal picture.

2. The method according to claim 1, characterized in that, after obtaining the thermal imaging picture of the thermal imaging camera and before confirming that a high-temperature object appears in the picture of the thermal imaging picture, it further includes: detecting whether a high-temperature object appears in the picture of the thermal imaging camera; after confirming that a high-temperature object appears in the picture of the thermal imaging picture, it further includes: generating a burn alarm signal.

3. The method according to claim 1 or 2, characterized in that, after confirming that a high-temperature object appears in the picture of the thermal imaging picture, it further includes: A. When the user sets the shutter state, judge whether the actual state of the current shutter is consistent with the shutter state set by the user. If not, change the actual state of the current shutter to the shutter state set by the user, and go to step B; if consistent, directly go to step B; B. Judge whether the actual state of the current shutter is closed. If so, start the protection mechanism non-uniformity correction timing, and when the timing duration reaches the preset protection mechanism non-uniformity correction timing duration, perform a non-uniformity correction operation.

4. The method according to claim 2, characterized in that, before closing the shutter when the current shutter is not closed, it further includes: detecting the burn alarm signal generated by the thermal imaging camera according to the burn protection detection period; and, the method further includes: if the burn alarm signal generated by the thermal imaging camera is not detected when the burn protection detection period arrives, open the shutter when the current shutter is closed.

5. The method according to claim 1 or 2, characterized in that, when closing the shutter, it further includes: starting a closing timing, and when the timing duration reaches the preset closing duration, open the shutter; or, starting a closing timing, and when the timing duration reaches the preset closing duration, open the shutter and eliminate the burn alarm signal.

6. The method according to claim 1 or 2, characterized in that, the shutter is a double-setting shutter.

7. The method according to claim 2, characterized in that, after generating the burn alarm signal, it further includes: When the burn alarm signal is eliminated, if the current shutter is open, start the recovery mechanism non-uniformity correction timing. When the timing duration reaches the set recovery mechanism non-uniformity correction timing duration, perform the non-uniformity correction operation.

8. The method according to claim 7, wherein, when generating the burn alarm signal, it further includes: setting a burn mark, and setting the recovery mechanism non-uniformity correction timing duration to the first timing duration in a preset recovery mechanism non-uniformity correction timing schedule, wherein the preset recovery mechanism non-uniformity correction timing schedule contains a plurality of sequentially increasing timing durations arranged in order; and, when the burn alarm signal is eliminated, it further includes: determining whether there is a burn mark. If there is, perform the action of if the current shutter is open, start the recovery mechanism non-uniformity correction timing; and, after performing the non-uniformity correction operation when the timing duration reaches the set recovery mechanism non-uniformity correction timing duration, it further includes: determining whether the current recovery mechanism non-uniformity correction timing duration is the last timing duration in the preset recovery mechanism non-uniformity correction timing schedule. If so, eliminate the burn mark; otherwise, set the current recovery mechanism non-uniformity correction timing duration to the next timing duration in the preset recovery mechanism non-uniformity correction timing schedule, determine whether the thermal imaging camera generates a burn alarm signal. If not, return to the action of determining whether there is a burn mark.

9. A thermal imaging camera burn processing device, wherein, it includes: a first module for obtaining a thermal imaging picture of the thermal imaging camera and detecting whether the thermal imaging picture shows that there is a high-temperature object in the picture of the thermal imaging camera; a second module for, when the first module confirms that the thermal imaging picture shows that there is a high-temperature object in the picture, closing the shutter and starting the protection mechanism non-uniformity correction timing when the current shutter of the thermal imaging camera is not closed, and when the timing duration reaches the preset protection mechanism non-uniformity correction timing duration, performing the non-uniformity correction operation; the non-uniformity correction is: by blocking the imaging information from the lens in front of the image sensor, collecting and storing the remaining non-uniform thermal radiation signals, so that: during normal imaging, the stored non-uniform thermal radiation signals are removed as background data to obtain an imaging picture not interfered by the internal heat of the camera, and the lens outputs a normal picture.

10. The device according to claim 9, wherein, after the first module obtains the thermal imaging picture of the thermal imaging camera, it is further used for: detecting whether the thermal imaging picture shows that there is a high-temperature object in the picture of the thermal imaging camera; the first module is further used for: generating a burn alarm signal when confirming that the thermal imaging picture shows that there is a high-temperature object in the picture. After the first module confirms that the thermal imaging picture shows a high-temperature object in the picture, the second module is further used for: A. When the user sets the shutter state, determine whether the actual state of the current shutter is consistent with the shutter state set by the user. If not, change the actual state of the current shutter to the shutter state set by the user, and go to step B; if consistent, directly go to step B; B. Determine whether the actual state of the current shutter is closed. If so, start the protection mechanism non-uniformity correction timing, and when the timing duration reaches the preset protection mechanism non-uniformity correction timing duration, perform the non-uniformity correction operation; Before the second module closes the shutter when the current shutter is not closed, it is further used for: detecting the burn alarm signal generated by the first module according to the burn protection detection period; and, if the burn alarm signal generated by the first module is not detected when the burn protection detection period arrives, open the shutter when the current shutter is closed; When the second module closes the shutter, it is further used for: starting the closing timing. When the timing duration reaches the preset closing duration, open the shutter; or, starting the closing timing. When the timing duration reaches the preset closing duration, open the shutter and cancel the burn alarm signal; The shutter closed by the second module is a bistable shutter; The second module is further used for: after the first module generates a burn alarm signal, when the burn alarm signal of the first module is eliminated, if the current shutter is open, start the recovery mechanism non-uniformity correction timing. When the timing duration reaches the set recovery mechanism non-uniformity correction timing duration, perform the non-uniformity correction operation; The second module is further used for: when the first module generates a burn alarm signal, set a burn mark, and set the recovery mechanism non-uniformity correction timing duration to the first timing duration in the preset recovery mechanism non-uniformity correction timing schedule, where the preset recovery mechanism non-uniformity correction timing schedule contains a plurality of sequentially increasing timing durations arranged in order; and, when the burn alarm signal of the first module is eliminated, determine whether there is a burn mark. If so, perform the action of starting the recovery mechanism non-uniformity correction timing if the current shutter is open; and, after performing the non-uniformity correction operation when the timing duration reaches the set recovery mechanism non-uniformity correction timing duration, further used for: determining whether the current recovery mechanism non-uniformity correction timing duration is the last timing duration in the preset recovery mechanism non-uniformity correction timing schedule. If so, eliminate the burn mark, otherwise, set the current recovery mechanism non-uniformity correction timing duration to the next timing duration in the preset recovery mechanism non-uniformity correction timing schedule, determine whether the first module generates a burn alarm signal. If not, return to the action of determining whether there is a burn mark.

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