Transformer substation intelligent patrol camera position design method based on three-dimensional model

Abstract

The invention discloses a three-dimensional model-based transformer substation intelligent patrol camera position design method, relates to the technical field of transformer substation patrol, and solves the problem that a plurality of cameras cannot achieve coverage maximization due to the fact that a relatively accurate design effect cannot be achieved. According to the method, relevant confirmation is carried out on the model area and the neutral area in the three-dimensional substation model, then the corresponding external area is confirmed from the corresponding neutral area, the external area of the single model is confirmed by adopting a manner of constructing the circumscribed rectangle, and then the three-dimensional substation model is constructed on the basis of the confirmed external annular area. According to the method, the corresponding feature areas in the corresponding neutral position areas are recognized, then the corresponding design points are determined from the corresponding feature areas, the design points can be quickly and effectively locked by adopting the gradual confirmation mode, and a good design effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of substation inspection, and in particular to a method for designing the position of a substation intelligent inspection camera based on a three-dimensional model. Background Art

[0002] Substation inspection is a key link to ensure the safe, stable and reliable operation of the substation. By regularly inspecting and monitoring the equipment and facilities in the substation, abnormal conditions and potential faults of the equipment can be discovered in time, such as equipment overheating, insulation damage, component aging, loose connections, etc., so that appropriate measures can be taken for maintenance and repair, to prevent accidents and ensure the normal power supply of the power system.

[0003] When arranging smart cameras inside the substation, the cameras are usually arranged based on personal experience, and the specific height of the cameras is confirmed by the user at the arrangement point to complete the specific camera position arrangement. However, this type of position design method cannot achieve a more precise design effect, resulting in several cameras not achieving maximum coverage and unable to guarantee the comprehensive design effect of the cameras. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a method for designing the positions of intelligent patrol cameras in substations based on a three-dimensional model, which solves the problem that a relatively accurate design effect cannot be achieved, resulting in several cameras not achieving maximum coverage.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A method for designing the position of a substation intelligent patrol camera based on a three-dimensional model, comprising the following steps:

[0006] Step 1: Based on the completed 3D model of the substation, confirm the single model and the empty area from the determined 3D model. The specific method is as follows:

[0007] S11, based on the constructed three-dimensional model, preferentially identify the monomer models existing in the three-dimensional model, wherein the monomer models all have corresponding preset monomer marks, and the monomer models are pre-stored in the corresponding model library, determine the center point of the monomer model, and based on the determined center point, determine a set of circumscribed rectangles, wherein the center points of the circumscribed rectangles are consistent with the center points of the corresponding monomer models, and the outer surfaces of the monomer models are inscribed in the circumscribed rectangles, and the side lines of the circumscribed rectangles are perpendicular or parallel to each other;

[0008] S12, after the external circumscribed rectangle of each monomer model is generated, the part of the original three-dimensional model that does not belong to the external circumscribed rectangle is marked as a blank area;

[0009] Step 2: Based on the determined empty area and the confirmed circumscribed rectangle, four groups of directions are proposed based on the four groups of side lines outside the circumscribed rectangle, and the areas associated with the four groups of directions are marked as the outer annular areas of such circumscribed rectangles. Then, the corresponding outer annular areas are removed from the empty area, so that the remaining related areas are marked as feature areas. The specific method is as follows:

[0010] S21, based on the confirmed circumscribed rectangle, confirm four groups of side lines of the circumscribed rectangle, determine the center point of the corresponding side line to be calibrated as the point to be determined, take the moving direction from the center point inside the circumscribed rectangle to the point to be determined as the moving direction of the corresponding side line, make the corresponding side line move according to the confirmed moving direction, and stop when the side line intersects with other circumscribed rectangles or when the side line of the gap area intersects, calibrate the area generated during the movement as the outer annular area of ​​the corresponding circumscribed rectangle, and process each group of circumscribed rectangles in this way, and confirm the outer annular area of ​​each group of circumscribed rectangles in turn;

[0011] S22, confirming the location and range of each group of outer annular areas in the empty area, and then eliminating the corresponding outer annular areas based on the confirmed location and range, and marking the remaining relevant areas in the empty area as feature areas;

[0012] Step 3: From the confirmed feature area, identify the relevant corner points inside the feature area, and then radiate the range based on the confirmed corner points. From the specific range of radiation, select the best selected point of the corresponding feature area, and then lock the design point from the repeated best selected points. The specific method is as follows:

[0013] S31, locking the edge lines outside the feature area, where the edge lines are the edge lines of the outer annular area or the edge lines of the gap area, and marking the intersection points between the edge lines as corner points;

[0014] S32, taking the determined corner point as the center of the circle and determining a set of virtual straight lines as the radius, rotating the virtual straight line according to the determined center of the circle, and marking the intersection area with the empty area during the rotation as the determined area, and blurring the virtual straight line when it rotates to intersect with the monomer model, and the virtual straight line does not cross the confirmed area in the blurred state, and the radiation range of the virtual straight line includes the entire empty area, and the total area of ​​the confirmed area generated by the corresponding corner point is confirmed and marked as M i , where i represents different corner points;

[0015] S33, sequentially confirming the M confirmed by different corner points in the corresponding feature area i , from the confirmed multiple M i In the iThe corner point corresponding to max is taken as the best selected point;

[0016] S34, based on the determined best selected points and the related determined areas, if there is a determined area associated with a best selected point that is covered by other best selected points, then such best selected points are eliminated, and the remaining best selected points are marked as design points;

[0017] Step 4: Based on the determined design point and the optimal patrol range of the patrol camera, confirm the height at the design point, lock the optimal height design point of the corresponding patrol camera, and make relevant displays; the specific sub-steps are:

[0018] S41, set the corresponding patrol camera at the design point in the three-dimensional model, and make the patrol camera perform associated patrol, confirm the associated distance between the corresponding patrol point and the patrol camera, and calibrate the associated distance generated by different points as G q-k , where q represents the design height of the patrol camera, and k represents different patrol points;

[0019] S42, based on the preset optimal patrol range of the corresponding patrol camera, a plurality of associated distances G confirmed by the corresponding design height are q-k Calibrate as a distance set, calibrate the associated distances in the distance set that belong to the optimal patrol range as the optimal distance, and determine the specific proportion Zb of the optimal distance in the distance set q , its Zb q =Total number of optimal distances ÷Total number of associated distances in the distance set;

[0020] S43, different specific proportions Zb confirmed from different design heights q In the q The design height corresponding to max is calibrated as the optimal height design point, and the confirmed optimal height design point is displayed.

[0021] The present invention provides a method for designing the location of a substation intelligent patrol camera based on a three-dimensional model. Compared with the prior art, it has the following beneficial effects:

[0022] The present invention confirms the model area and the idle area inside the three-dimensional substation model, and then confirms the corresponding external area from the corresponding idle area. The external area of ​​the monomer model is confirmed by constructing a circumscribed rectangle, and then based on the confirmed external annular area, the corresponding feature area in the corresponding idle area is identified, and then the corresponding design point is determined from the corresponding feature area. By adopting this step-by-step confirmation method, the design point can be quickly and effectively locked to achieve a better design effect.

[0023] Then, the height is confirmed from within the design point. Based on the optimal patrol range of the corresponding camera, the optimal height distance is determined within the design point and displayed for external personnel to view. This can achieve a better design effect and facilitate intelligent patrol of the corresponding camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the process of the present invention;

[0025] Figure 2 It is a schematic diagram for determining the characteristic area of ​​the present invention. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] First embodiment

[0028] See also Figure 1 The present application provides a method for designing the location of a substation intelligent patrol camera based on a three-dimensional model, comprising the following steps:

[0029] Step 1: Based on the completed substation 3D model, confirm the single model and the empty area from the determined 3D model. Specifically, the empty area is the relevant area where there is no single model, which belongs to the normal walking range area or other blank area, and the 3D model is constructed in advance by the relevant operators. The specific method of determining the single model and the empty area is as follows:

[0030] S11. Based on the constructed three-dimensional model, the monomer models existing in the three-dimensional model are preferentially identified. The monomer models all have corresponding preset monomer marks, and the monomer models are pre-stored in the corresponding model library. The relevant operators can directly extract the models from the model library, and construct the monomer models at the specified positions, determine the center points of the monomer models, and determine a set of circumscribed rectangles based on the determined center points. The center points of the circumscribed rectangles are consistent with the center points of the corresponding monomer models, and the outer surfaces of the monomer models are inscribed with the circumscribed rectangles, and the side lines of the circumscribed rectangles are perpendicular or parallel to each other, that is, when setting the circumscribed rectangles, the angles shall not be changed, so as to Figure 2 Taking the rectangle in as an example, each rectangle should be normally arranged and parallel or perpendicular to each other, and should not be constructed randomly. The circumscribed rectangle should be changed according to the shape of the monomer model.

[0031] S12, after the external circumscribed rectangle of each monomer model is generated, the part of the original three-dimensional model that does not belong to the circumscribed rectangle is marked as a blank area. Specifically, the blank area is a relevant area where no monomer model exists. Only in the blank area can the corresponding patrol camera be arranged. Therefore, it is necessary to prioritize the blank area in the three-dimensional model.

[0032] Step 2: Based on the determined empty area and the confirmed circumscribed rectangle, and based on the four groups of sidelines outside the circumscribed rectangle, four groups of directions are proposed, and the area associated with the four groups of directions is marked as the outer annular area of ​​such circumscribed rectangle, and then the corresponding outer annular area is removed from the empty area, so that the remaining related area is marked as the feature area. Specifically, the circumscribed rectangle is a standard rectangle, and there are four corresponding groups of sidelines. Each sideline can be confirmed to the outside to lock the related area. The corresponding area must not contain the corresponding monomer model, so that the related specific areas can be confirmed in turn, and the specific method of determining the feature area is as follows:

[0033] S21. Based on the confirmed circumscribed rectangle, four groups of side lines of the circumscribed rectangle are confirmed, and the center point of the corresponding side line is determined to be calibrated as the point to be determined. The moving direction from the center point inside the circumscribed rectangle to the point to be determined is used as the moving direction of the corresponding side line, and the corresponding side line is moved according to the confirmed moving direction until the side line intersects with other circumscribed rectangles or the side line of the idle area intersects, and the area generated during the movement is calibrated as the outer annular area of ​​the corresponding circumscribed rectangle (there are four groups of outer annular areas of each circumscribed rectangle, unless the side lines of the circumscribed rectangle and the idle area overlap, then the number of groups of the confirmed outer annular areas will be reduced, and under normal circumstances, there are four groups), each group of circumscribed rectangles is processed in this way, and the outer annular areas of each group of circumscribed rectangles are confirmed in turn;

[0034] S22, confirming the location and range of each group of outer annular areas in the empty area, and then eliminating the corresponding outer annular areas based on the confirmed location and range, and marking the remaining relevant areas in the empty area as feature areas;

[0035] like Figure 2As shown, the corresponding monomer model is locked from the confirmed three-dimensional model, the corresponding circumscribed rectangle has been determined outside the monomer model, the corresponding center point A exists in the corresponding monomer model, and the corresponding center point B exists in the corresponding sideline. The corresponding moving direction is determined from point A to point B. Based on the determined moving direction, the corresponding sideline is moved, so that the outer annular area of ​​the corresponding monomer model can be locked, and the corresponding outer annular area is determined in the entire gap area, so that the corresponding feature area can be locked, and the feature area is other areas that do not belong to the outer annular area and still belong to the corresponding gap area;

[0036] Step 3: From the confirmed feature area, identify the relevant corner points inside the feature area, and then radiate the range based on the confirmed corner points. From the specific range of radiation, select the best selected point of the corresponding feature area, and then lock the design point from the repeated best selected points. Specifically, the best selected point is the best layout point of the corresponding intelligent patrol camera. Arranging the camera at the best layout point can achieve the best layout effect, so that the corresponding camera can achieve a more comprehensive control range. The specific method of determining the best selected point is:

[0037] S31, locking the edge lines outside the feature area, where the edge lines are the edge lines of the outer annular area or the edge lines of the gap area, and marking the intersection points between the edge lines as corner points;

[0038] S32, taking the determined corner point as the center of the circle and determining a set of virtual straight lines as the radius, rotating the virtual straight line according to the determined center of the circle, and marking the intersection area with the empty area during the rotation as the determined area, and blurring the virtual straight line when it rotates to intersect with the monomer model, and the virtual straight line does not cross the confirmed area in the blurred state, and the radiation range of the virtual straight line includes the entire empty area, and the total area of ​​the confirmed area generated by the corresponding corner point is confirmed and marked as M i , where i represents different corner points. Specifically, it can be understood here that a group of cameras are set at the corner points. When the cameras are patrolling, they rotate. Then, during the rotation process, the relevant patrol area can be confirmed. The patrol area is the corresponding visible area. When there is a corresponding monomer model blocking, the camera cannot patrol the blocked area. Therefore, it is necessary to blur the corresponding virtual straight line to confirm the relevant area. The determined area is the relevant area that the camera can patrol normally. Then, when the patrol area is maximized, the corresponding best selected point can be locked. When patrolling at the corresponding best selected point later, the best patrol effect can be achieved.

[0039] S33, sequentially confirming the M confirmed by different corner points in the corresponding feature area i, from the confirmed multiple M i In the i The corner point corresponding to max is taken as the best selected point;

[0040] S34. Based on the determined best selected points and the related determined areas, if there is a determined area associated with a certain best selected point that is covered by other best selected points, such best selected points are eliminated, and the remaining best selected points are marked as design points. Specifically, when the determined area generated by a certain best selected point is area C, and the determined areas generated by another best selected point are area C and area D, then the best selected point determined as area C does not need to be selected again and can be directly eliminated.

[0041] Second embodiment

[0042] Step 4: Based on the determined design point and the optimal patrol range of the patrol camera, the height is confirmed at the design point, the optimal height design point of the corresponding patrol camera is locked, and relevant displays are made. The specific sub-steps for locking the optimal height design point are:

[0043] S41, set the corresponding patrol camera at the design point in the three-dimensional model, and make the patrol camera perform associated patrol, confirm the associated distance between the corresponding patrol point and the patrol camera, and calibrate the associated distance generated by different points as G q-k , where q represents the design height of the patrol camera, and k represents different patrol points;

[0044] S42, based on the preset optimal patrol range of the corresponding patrol camera, a plurality of associated distances G confirmed by the corresponding design height are q-k Calibrate as a distance set, calibrate the associated distances in the distance set that belong to the optimal patrol range as the optimal distance, and determine the specific proportion Zb of the optimal distance in the distance set q , its Zb q =Total number of optimal distances ÷Total number of associated distances in the distance set;

[0045] S43, different specific proportions Zb confirmed from different design heights q In the q The design height corresponding to max is calibrated as the optimal height design point, and the confirmed optimal height design point is displayed for external personnel to view;

[0046] Specifically, after the corresponding cameras are arranged, the corresponding patrol distance can be determined directly from the three-dimensional model. The corresponding associated distance of each point can be directly determined from the three-dimensional model, so that the corresponding optimal distance can be determined from several associated distances, thereby determining the optimal height design point.

[0047] Third embodiment

[0048] The specific implementation process of this embodiment includes the entire implementation process of the above two groups of embodiments.

[0049] Some of the data in the above formulas are dimensionless and numerically calculated. Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0050] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A method for designing the location of a substation intelligent patrol camera based on a three-dimensional model, characterized in that: The following steps are involved: Step 1: Based on the completed three-dimensional model of the substation, confirm the single model and the empty area from the determined three-dimensional model; Step 2: Based on the determined empty area and the confirmed circumscribed rectangle, four groups of directions are proposed based on the four groups of side lines outside the circumscribed rectangle, and the areas associated with the four groups of directions are marked as the outer annular areas of such circumscribed rectangles, and then the corresponding outer annular areas are removed from the empty area, so that the remaining related areas are marked as feature areas; Step 3: Identify the relevant corner points within the confirmed feature area, and then radiate the range based on the confirmed corner points. From the specific range of radiation, select the best selected point of the corresponding feature area, and then lock the design point from the repeated best selected points.

2. According to the method for designing the position of a substation intelligent patrol camera based on a three-dimensional model according to claim 1, it is characterized in that: In step 1, the specific method of determining the monomer model and the empty area is: S11, based on the constructed three-dimensional model, preferentially identify the monomer models existing in the three-dimensional model, wherein the monomer models all have corresponding preset monomer marks, and the monomer models are pre-stored in the corresponding model library, determine the center point of the monomer model, and based on the determined center point, determine a set of circumscribed rectangles, wherein the center points of the circumscribed rectangles are consistent with the center points of the corresponding monomer models, and the outer surfaces of the monomer models are inscribed in the circumscribed rectangles, and the side lines of the circumscribed rectangles are perpendicular or parallel to each other; S12: After the circumscribed rectangle outside each monomer model is generated, the partial area of ​​the original three-dimensional model that does not belong to the circumscribed rectangle is marked as a blank area.

3. According to the method for designing the location of a substation intelligent patrol camera based on a three-dimensional model according to claim 1, it is characterized in that: In the step 2, the specific method of determining the characteristic area is: S21, based on the confirmed circumscribed rectangle, confirm four groups of side lines of the circumscribed rectangle, determine the center point of the corresponding side line to be calibrated as the point to be determined, take the moving direction from the center point inside the circumscribed rectangle to the point to be determined as the moving direction of the corresponding side line, make the corresponding side line move according to the confirmed moving direction, and stop when the side line intersects with other circumscribed rectangles or when the side line of the gap area intersects, calibrate the area generated during the movement as the outer annular area of ​​the corresponding circumscribed rectangle, and process each group of circumscribed rectangles in this way, and confirm the outer annular area of ​​each group of circumscribed rectangles in turn; S22, confirming the location and range of each group of outer annular areas in the empty area, and then eliminating the corresponding outer annular areas based on the confirmed locations and ranges, and marking the remaining related areas in the empty area as feature areas.

4. According to the method for designing the location of a substation intelligent patrol camera based on a three-dimensional model according to claim 1, it is characterized in that: In step 3, the specific method of determining the best selected point is: S31, locking the edge lines outside the feature area, where the edge lines are the edge lines of the outer annular area or the edge lines of the gap area, and marking the intersection points between the edge lines as corner points; S32, taking the determined corner point as the center of the circle and determining a set of virtual straight lines as the radius, rotating the virtual straight line according to the determined center of the circle, and marking the intersection area with the empty area during the rotation as the determined area, and blurring the virtual straight line when it rotates to intersect with the monomer model, and the virtual straight line does not cross the confirmed area in the blurred state, and the radiation range of the virtual straight line includes the entire empty area, and the total area of ​​the confirmed area generated by the corresponding corner point is confirmed and marked as M i , where i represents different corner points; S33, sequentially confirming the M confirmed by different corner points in the corresponding feature area i , from the confirmed multiple M i In the i The corner point corresponding to max is taken as the best selected point.

5. According to the method for designing the location of a substation intelligent patrol camera based on a three-dimensional model according to claim 4, it is characterized in that: In step 3, the specific method of determining the design point is: S34. Based on the determined optimal selected points and the related determined areas, if there is an optimal selected point whose associated determined area is covered by other optimal selected points, such optimal selected points are eliminated, and the remaining optimal selected points are marked as design points.

6. The method for designing the location of a substation intelligent patrol camera based on a three-dimensional model according to claim 1 is characterized in that: Also includes: Step 4: Based on the determined design point and the optimal patrol range of the patrol camera, confirm the height at the design point, lock the optimal height design point corresponding to the patrol camera, and make relevant displays.

7. The method for designing the location of a substation intelligent patrol camera based on a three-dimensional model according to claim 6 is characterized in that: In step 4, the specific sub-steps of locking the optimal height design point are: S41, set the corresponding patrol camera at the design point in the three-dimensional model, and make the patrol camera perform associated patrol, confirm the associated distance between the corresponding patrol point and the patrol camera, and calibrate the associated distance generated by different points as G q-k , where q represents the design height of the patrol camera, and k represents different patrol points; S42, based on the preset optimal patrol range of the corresponding patrol camera, a plurality of associated distances G confirmed by the corresponding design height are q-k The distance set is marked as the distance between the best patrol range and the best distance in the distance set is marked as the best distance, and the specific proportion Zb of the best distance in the distance set is determined. q , its Zb q =Total number of optimal distances ÷Total number of associated distances in the distance set; S43, different specific proportions Zb confirmed from different design heights q In the q The design height corresponding to max is calibrated as the optimal height design point, and the confirmed optimal height design point is displayed.

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