Pipeline periscope scene adaptive adjustment method and pipeline periscope

Abstract

The invention discloses a pipeline periscope scene adaptive adjustment method and a pipeline periscope. The method comprises the following steps: acquiring an image of an environment where the pipeline periscope is located; matching the obtained environment image with a preset image comparison condition to obtain an environment mode parameter; and calling a corresponding parameter instruction according to the environment mode parameter, and configuring the parameter instruction on the pipeline periscope. The adaptive parameters can be correspondingly adjusted according to the current environment of the pipeline periscope, and the optimal operation parameters are matched through environment perception, so that the pipeline periscope can be adaptively adjusted.

Description

Technical Field

[0001] This invention relates to a scene adaptive adjustment method for a pipe periscope and a pipe periscope. Background Technology

[0002] Current pipeline periscopes on the market typically consist of a main unit (including a camera, processor, main and auxiliary lighting modules, range sensors, and other sensors), a lithium battery, and a mobile terminal. They are mainly used for internal inspection of municipal drainage pipelines, gas and oil pipelines, power cable pipelines, tunnels, and culverts. However, they generally employ fixed camera core parameter designs and a single lighting strategy.

[0003] Regarding the core parameters of the camera: The camera's core imaging parameters such as aperture (F-number) and brightness are preset to a single fixed value (such as fixed F8 or F11) at the factory, and cannot be dynamically adjusted according to the spatial characteristics and lighting conditions of the detection scene (such as narrow pipes requiring a large depth of field, and open box culverts requiring high light intake).

[0004] In terms of supplementary lighting design: the supplementary lighting mode (brightness ratio of main light source / auxiliary light source) is not linked to the camera's optical zoom state and detection distance. Whether it is medium-to-close distance detection (low magnification) or long distance detection (high magnification), a uniform supplementary lighting intensity is used. Moreover, in order to ensure the long-distance supplementary lighting effect, most products prioritize strengthening the performance of the main light source (high beam) and weaken the adaptability of the auxiliary light source (low beam) to medium-to-close distance scenes. Summary of the Invention

[0005] The main objective of this invention is to provide a method for scene adaptive adjustment of a pipe periscope and a pipe periscope, in order to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention proposes a scene adaptive adjustment method for a pipe periscope, comprising:

[0007] Acquire images of the environment surrounding the pipe periscope;

[0008] The acquired environmental image is matched with preset image comparison conditions to obtain environmental mode parameters;

[0009] The corresponding parameter command is retrieved based on the environmental mode parameters, and the parameter command is configured on the pipeline periscope.

[0010] In one embodiment, the step of matching the acquired environmental image with a preset paired image to obtain environmental mode parameters includes:

[0011] If the acquired environmental image matches the comparison criteria of an image that is narrow and deep with clear side boundaries, then the environmental mode is set to pipeline mode.

[0012] If the acquired environmental image matches the comparison conditions of an image of an open space without obvious narrow boundaries, then the environmental mode is set to box culvert mode.

[0013] In one embodiment, the step of retrieving the corresponding parameter command based on the environmental mode parameters and configuring the parameter command on the pipe periscope specifically includes:

[0014] When the environment mode is Pipe mode, configure the aperture F16 and brightness 60% parameters on the Pipe periscope.

[0015] In one embodiment, the step of retrieving the corresponding parameter command based on the environmental mode parameters and configuring the parameter command on the pipe periscope specifically includes:

[0016] When the environment mode is box culvert mode, configure the aperture F5.6 and brightness 100% parameters on the pipe periscope.

[0017] In one embodiment, after the step of retrieving the corresponding parameter command based on the environmental mode parameters and configuring the parameter command on the pipe periscope, the pipe periscope scene adaptive adjustment method further includes:

[0018] Real-time acquisition of camera zoom level and target distance;

[0019] The magnification ratio and the optical magnification threshold N are compared, and the supplementary lighting parameters of the pipe periscope are adjusted according to the comparison results.

[0020] In one embodiment, the step of adjusting the illumination parameters of the pipe periscope based on the comparison results includes:

[0021] When the laser ranging target distance is less than or equal to 10m, or the camera zoom level is less than or equal to N, turn on the low beam auxiliary light source and adjust it to 50% brightness, while adjusting the main light source to 40% brightness.

[0022] In one embodiment, the step of adjusting the illumination parameters of the pipe periscope based on the comparison results includes:

[0023] When the laser ranging target distance is greater than 10m, or the camera zoom level is greater than N, turn on the near-beam auxiliary light source and adjust it to 10% brightness, while simultaneously adjusting the main light source to 100% brightness.

[0024] In addition, the present invention also provides a pipe periscope, the pipe periscope including a periscope body and a control module disposed on the periscope body, the control module including a processor and a wireless transmission module, a camera, a near-light driver, a far-light driver and a ranging sensor all connected to the processor.

[0025] In the technical solution of this invention, the adaptive adjustment method for a pipeline periscope scene includes:

[0026] Acquire images of the environment surrounding the pipe periscope;

[0027] The acquired environmental image is matched with preset image comparison conditions to obtain environmental mode parameters;

[0028] The corresponding parameter command is retrieved based on the environmental mode parameters, and the parameter command is configured on the pipeline periscope.

[0029] In this technical solution, the parameters can be adjusted to match the current environment of the pipeline periscope, and the optimal operating parameters can be matched through environmental perception, so that the pipeline periscope can be adaptively adjusted. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of a pipe periscope according to an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the parameter adjustment process of the adaptive adjustment method for a pipeline periscope scene according to an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the supplementary lighting process of the adaptive adjustment method for a pipeline periscope scene according to an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the pipe periscope in pipe mode according to an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the pipe periscope in box culvert mode according to an embodiment of the present invention.

[0036] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0038] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0040] This invention provides a method for adaptive adjustment of a pipeline periscope scene.

[0041] like Figure 1-5 As shown, the pipeline periscope provided in this embodiment of the invention includes a periscope body and a control module disposed on the periscope body. The control module includes a processor and a wireless transmission module, a camera, a near-light driver, a far-light driver, and a ranging sensor, all of which are connected to the processor.

[0042] In this embodiment, through a dual adjustment logic of "scene recognition + ambient light detection," the processor automatically adjusts the camera's aperture (F-number) and brightness value to accurately match the core requirements of different scenes, as detailed below:

[0043] Scenario 1: Narrow, deep spaces such as pipes, etc. Figure 4 As shown.

[0044] Scene recognition: The mobile terminal determines the scene as a pipeline by image recognition (the image presents the characteristics of "narrow and deep with clear boundaries on both sides"), or the user manually selects "pipeline mode";

[0045] Aperture Adjustment: The processor sends a command to the camera to set the aperture to F16. The F16 aperture has a large depth of field, which ensures that objects in a large area in front of and behind the focus (such as cracks in pipe walls or accumulation of foreign objects) can be clearly imaged, avoiding the loss of details due to a shallow depth of field;

[0046] Brightness Adjustment: Based on the ambient light intensity detected by the light sensor (the ambient light inside the pipe is usually ≤50 lux), the brightness value is set to 60% (moderate). Because the periscope's main light source (high beam) has a strong supplementary lighting capability (maximum supplementary lighting distance ≥50m), moderate brightness can avoid overexposure caused by reflections from the inner wall of the pipe, while ensuring that details in the image (such as a 1mm wide crack) can be identified.

[0047] Scenario 2: Large spaces such as box culverts, etc. Figure 5 As shown

[0048] Scene recognition: The mobile terminal determines the scene as a box culvert by image recognition (the image shows "open space with no obvious narrow boundary"), or the user manually selects "box culvert mode";

[0049] Aperture Adjustment: The processor sends a command to the camera to set the aperture to F5.6. The F5.6 aperture allows approximately 8 times more light than F16, ensuring sufficient exposure even under complex lighting conditions in box culverts (such as uneven local brightness or light intensity fluctuations of 50-500 lux caused by natural light). The exposure time can be shortened to less than 1 / 100s, avoiding motion blur caused by slight equipment vibrations (amplitude ≤0.5mm). It also supports ISO100 (low sensitivity), effectively reducing image noise.

[0050] Brightness Adjustment: Based on the ambient light intensity detected by the light sensor (the ambient light inside the box culvert is typically 50-300 lux), the brightness value is set to 100% (higher). Because the periscope auxiliary light source (near light) has a wide coverage range (maximum supplementary light diameter ≥3m), the higher brightness can cover the lighting needs of the large space of the box culvert, ensuring that the overall image is bright and highlighting defects such as leakage marks (e.g., 0.5mm wide water stains) and structural damage (e.g., concrete spalling) on ​​the inner wall of the box culvert.

[0051] In this application, the mobile terminal distinguishes between "pipe environment (narrow space)" and "box culvert environment (large space)" through image recognition. A light sensor synchronously collects ambient light intensity and transmits it to the processor. If it is a pipe environment, the processor sends "Solution 1" command (aperture F16 + brightness 60%) to the camera; if it is a box culvert environment, it sends "Solution 2" command (aperture F5.6 + brightness 100%). The camera performs parameter adjustments to complete scene adaptation (adjustment response time ≤ 0.5s). In the pipe scene, both near and far edges are clear near the focal point, with a detail loss rate ≤ 1%. In the box culvert scene, the noise rate is ≤ 0.5%, and the motion blur rate is ≤ 1%.

[0052] The aperture index and brightness index in both Scheme 1 and Scheme 2 can be adjusted according to hardware performance and testing requirements.

[0053] In addition, while adjusting parameters, this invention can also dynamically adjust the brightness ratio of the main light source and the auxiliary light source based on the linkage logic of "laser ranging data + camera zoom status", thereby reducing battery power consumption while ensuring image quality, as detailed below:

[0054] Set the optical zoom threshold N (based on actual product performance, such as 20X, which can be adjusted within the range of 15X-40X). When the camera zoom level is ≤ N, it is determined to be a medium-to-close distance detection (corresponding to a laser ranging distance ≤ 10m), and "supplementary lighting scheme 1" is adopted; when the zoom level is > N, it is determined to be a long distance detection (corresponding to a laser ranging distance > 10m), and "supplementary lighting scheme 2" is adopted.

[0055] Supplemental lighting solution 1 (low magnification, medium to close distance detection)

[0056] Triggering conditions: Laser ranging detection distance ≤ 10m, or camera zoom ≤ N (e.g., 20X);

[0057] Fill light control: Turn on the auxiliary light source (near light) and maintain medium brightness (50% power) (to cover the fill light needs within a 3m diameter range at medium and close distances), while adjusting the main light source (far light) to medium brightness (40% power) (to help enhance local details and avoid uneven brightness at the edges of the image);

[0058] Advantages: No need to turn on the main light source at high intensity, battery power consumption is reduced by more than 25% compared with existing technologies, and overexposure problems in medium and close distance scenes are avoided (overexposure rate ≤1%).

[0059] Supplemental lighting solution 2 (high magnification, long-distance detection)

[0060] Triggering conditions: Laser rangefinder detection distance > 10m, or camera magnification > N (e.g., 20X);

[0061] Supplemental lighting control: Increase the brightness of the main light source (high beam) to the highest level (100% power) (to ensure that the illuminance of the target 20m away is ≥50 lux, which meets the requirements for clear imaging), while reducing the brightness of the auxiliary light source (low beam) to the lowest level (10% power, or turn it off) (to avoid near light scattering from interfering with long-distance imaging and reduce ineffective energy consumption).

[0062] Advantages: Precisely matches the needs of long-distance supplementary lighting, improving the image clarity of distant targets by more than 40%. At the same time, due to the low-power operation of the auxiliary light source, the battery life is extended to more than 3 hours (20% improvement over existing technologies of the same capacity).

[0063] The processor acquires the camera's zoom level in real time → laser ranging synchronously detects the target distance and calibrates the scene → determines whether the zoom level is greater than the threshold N → if not, executes "Fill-in Light Scheme 1" (50% near beam + 40% far beam); if so, executes "Fill-in Light Scheme 2" (100% far beam + 10% near beam / off) → the fill-in light mode switching response time is ≤0.3s, ensuring a continuous fill-in light effect during the detection process.

[0064] Therefore, in this application, the supplementary light intensity can be adjusted as needed, reducing ineffective energy consumption by more than 25%; continuous operation for ≥3 hours with the same battery capacity, increasing battery life by 20%.

[0065] The adaptive control logic of this application can be integrated into the existing hardware architecture of pipe periscopes. It can be implemented simply by upgrading the processor control algorithm through software (such as adding a scene recognition module and a supplementary lighting linkage module), without the need for large-scale hardware modifications (such as no need to replace the camera or supplementary lighting module). The hardware modification cost is ≤10% of the cost of existing products, and it has high compatibility and industrialization promotion value.

[0066] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A method for adaptive adjustment of a pipeline periscope scene, characterized in that, The adaptive adjustment method for the pipeline periscope scene includes the following steps: Acquire images of the environment surrounding the pipe periscope; The acquired environmental image is matched with preset image comparison conditions to obtain environmental mode parameters; The corresponding parameter command is retrieved based on the environmental mode parameters, and the parameter command is configured on the pipeline periscope.

2. The adaptive adjustment method for a pipeline periscope scene according to claim 1, characterized in that, The step of matching the acquired environmental image with a preset paired image to obtain environmental mode parameters includes: If the acquired environmental image matches the comparison criteria of an image that is narrow and deep with clear side boundaries, then the environmental mode is set to pipeline mode. If the acquired environmental image matches the comparison conditions of an image of an open space without obvious narrow boundaries, then the environmental mode is set to box culvert mode. Alternatively, it can be adjusted according to the environment mode manually set by the user.

3. The adaptive adjustment method for a pipeline periscope scene according to claim 2, characterized in that, The step of retrieving the corresponding parameter command based on the environmental mode parameters and configuring the parameter command on the pipe periscope specifically involves: When the environment mode is Pipe mode, configure the aperture F16 and brightness 60% parameters on the Pipe periscope.

4. The adaptive adjustment method for a pipeline periscope scene according to claim 3, characterized in that, The step of retrieving the corresponding parameter command based on the environmental mode parameters and configuring the parameter command on the pipe periscope specifically involves: When the environment mode is box culvert mode, configure the aperture F5.6 and brightness 100% parameters on the pipe periscope.

5. The adaptive adjustment method for a pipeline periscope scene according to claim 1, characterized in that, After the step of retrieving the corresponding parameter command based on the environmental mode parameters and configuring the parameter command on the pipe periscope, the pipe periscope scene adaptive adjustment method further includes: Real-time acquisition of camera zoom level and target distance; The magnification ratio and the optical magnification threshold N are compared, and the supplementary lighting parameters of the pipe periscope are adjusted according to the comparison results.

6. The adaptive adjustment method for a pipeline periscope scene according to claim 5, characterized in that, The step of adjusting the illumination parameters of the pipe periscope based on the comparison results includes: When the laser ranging target distance is less than or equal to 10m, or the camera zoom level is less than or equal to N, turn on the low beam auxiliary light source and adjust it to 50% brightness, while adjusting the main light source to 40% brightness.

7. The adaptive adjustment method for a pipeline periscope scene according to claim 6, characterized in that, The step of adjusting the illumination parameters of the pipe periscope based on the comparison results includes: When the laser ranging target distance is greater than 10m, or the camera zoom level is greater than N, turn on the near-beam auxiliary light source and adjust it to 10% brightness, while simultaneously adjusting the main light source to 100% brightness.

8. A pipe periscope, characterized in that, The pipeline periscope includes a periscope body and a control module disposed on the periscope body. The control module includes a processor and a wireless transmission module, a camera, a light sensor, an attitude sensor, a pitch controller, a defogging controller, a near-beam driver, a far-beam driver, and a distance sensor, all of which are connected to the processor.

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