Power plant installation attitude adjustment method and device, terminal and storage medium

Abstract

The application provides a power device installation and adjustment attitude adjustment method and device, a terminal and a storage medium. The method comprises the following steps: when a laser micrometer rotates around an axis of a measured power device, a first distance, a second distance, a third distance and a fourth distance measured by the laser micrometer are obtained; a first distance difference value is calculated according to the first distance and the second distance; a longitudinal adjustment amount required by the measured power device is calculated according to the first distance difference value, a rotation diameter of the laser micrometer, a distance between a front end support seat and a rear end support seat; a second distance difference value is calculated according to the third distance and the fourth distance; a transverse adjustment amount required by the measured power device is calculated according to the second distance difference value, the rotation diameter and the distance; and an attitude adjustment amount of a front end support seat adjustment mechanism and / or a rear end support seat adjustment mechanism is determined according to the longitudinal adjustment amount and the transverse adjustment amount. The application can improve the attitude detection precision and efficiency of the measured power device, and realize the rapid installation and adjustment of the measured power device.

Description

Technical Field

[0001] This invention relates to the field of propulsion force testing technology for power units, and in particular to a method, device, terminal, and storage medium for adjusting the attitude of a power unit. Background Technology

[0002] When conducting thrust tests on power devices such as aircraft engines, UAV propulsion systems, automobile engines, or motors, the power device under test needs to be placed in a calibrated position, that is, a position where the pitch angle and heading angle of the power device under test are both zero. Otherwise, it may cause deviations in subsequent thrust tests.

[0003] Currently, after placing the power unit under test in the designated position, the attitude of the power unit is usually estimated visually and adjusted accordingly, or a contact attitude detection method is used to detect the attitude of the power unit under test. However, for some models of power units under test, the presence of other structural components on their outer contour may make the use of contact attitude detection methods inconvenient, sometimes resulting in more interference, which in turn affects the adjustment of the power unit's attitude. Summary of the Invention

[0004] This invention provides a method, device, terminal, and storage medium for adjusting the attitude of a power unit, in order to solve the problem that current power unit attitude adjustment is inconvenient and difficult to accurately adjust the attitude of various types of power units.

[0005] In a first aspect, embodiments of the present invention provide a method for adjusting the attitude of a power device assembly, applied in a power device assembly and adjustment test system. The power device assembly and adjustment test system includes a test bench composed of a front support base, a rear support base, a front support base adjustment mechanism, and a rear support base adjustment mechanism; a transition frame; and a laser micrometer. The test bench supports the power device under test. One end of the transition frame is coaxially connected to the top of the power device under test, and the other end of the transition frame abuts against a load-bearing wall. The laser micrometer is rotatably mounted on the other end of the transition frame. The method includes:

[0006] When the laser micrometer rotates around the axis of the power device under test, the laser micrometer measures a first distance, a second distance, a third distance, and a fourth distance. The first distance is the distance between the laser emitter and the load-bearing wall when the laser micrometer corresponds to the highest point of the power device under test. The second distance is the distance between the laser emitter and the load-bearing wall when the laser micrometer corresponds to the lowest point of the power device under test. The third distance is the distance between the laser emitter and the load-bearing wall when the laser micrometer corresponds to the leftmost point of the power device under test. The fourth distance is the distance between the laser emitter and the load-bearing wall when the laser micrometer corresponds to the rightmost point of the power device under test.

[0007] Calculate the first distance difference based on the first distance and the second distance;

[0008] Based on the first distance difference, the rotation diameter of the laser micrometer, and the distance between the front support and the rear support, calculate the required longitudinal adjustment amount for the power device under test;

[0009] Calculate the second distance difference based on the third distance and the fourth distance;

[0010] The required lateral adjustment of the tested power device is calculated based on the second distance difference, the rotation diameter of the laser micrometer, and the distance between the front support and the rear support.

[0011] The attitude adjustment amount of the front support adjustment mechanism and / or the rear support adjustment mechanism is determined based on the longitudinal adjustment amount and the lateral adjustment amount.

[0012] In one possible implementation, the required longitudinal adjustment of the measured power device is calculated based on the first distance difference, the rotation diameter of the laser micrometer, and the distance between the front support and the rear support, including:

[0013] according to Calculate the required longitudinal adjustment amount for the power device under test;

[0014] Wherein, a′ is the longitudinal adjustment amount required for the measured power device, a is the first distance difference, b′ is the distance between the front support and the rear support, and b is the rotation diameter of the laser micrometer.

[0015] In one possible implementation, the required lateral adjustment of the measured power device is calculated based on the second distance difference, the rotation diameter of the laser micrometer, and the distance between the front support and the rear support, including:

[0016] according to Calculate the required lateral adjustment amount for the tested power device;

[0017] Wherein, a′0 is the lateral adjustment amount required for the measured power device, a0 is the second distance difference, b′ is the distance between the front support and the rear support, and b is the rotation diameter of the laser micrometer.

[0018] In one possible implementation, both the front support adjustment mechanism and the rear support adjustment mechanism include a left longitudinal adjustment handwheel, a right longitudinal adjustment handwheel, a leftward adjustment handwheel, and a rightward adjustment handwheel;

[0019] Determining the attitude adjustment amount of the front support adjustment mechanism and / or the rear support adjustment mechanism based on the longitudinal adjustment amount and the lateral adjustment amount includes:

[0020] Based on the longitudinal adjustment amount and the longitudinal movement distance of the tested power device when the left longitudinal adjustment handwheel or the right longitudinal adjustment handwheel rotates one revolution, determine the number of adjustment revolutions of the left longitudinal adjustment handwheel or the right longitudinal adjustment handwheel;

[0021] The number of adjustments made by the left or right adjustment handwheel is determined based on the lateral adjustment amount and the lateral movement distance of the tested power device when the left or right adjustment handwheel rotates one revolution.

[0022] In one possible implementation, determining the number of rotations of the left or right longitudinal adjustment handwheel based on the longitudinal adjustment amount and the longitudinal movement distance of the tested power device when the left or right longitudinal adjustment handwheel rotates one revolution includes:

[0023] according to Determine the number of turns for the left longitudinal adjustment handwheel or the right longitudinal adjustment handwheel;

[0024] Wherein, n1 is the number of adjustments made by the left longitudinal adjustment handwheel or the right longitudinal adjustment handwheel, a′ is the longitudinal adjustment amount, and h is the longitudinal movement distance of the tested power device when the left longitudinal adjustment handwheel or the right longitudinal adjustment handwheel rotates one revolution.

[0025] In one possible implementation, determining the number of rotations of the left or right adjustment handwheel based on the lateral adjustment amount and the lateral movement distance of the tested power device when the left or right adjustment handwheel rotates one revolution includes:

[0026] according to Determine the number of turns of the leftward or rightward adjustment handwheel;

[0027] Wherein, n2 is the number of turns of the left-adjusting handwheel or the right-adjusting handwheel, a′ is the lateral adjustment amount, and l is the lateral movement distance of the tested power device when the left-adjusting handwheel or the right-adjusting handwheel rotates one revolution.

[0028] Secondly, embodiments of the present invention provide a power unit assembly and adjustment attitude adjustment device, applied in a power unit assembly and adjustment test system. The power unit assembly and adjustment test system includes a test bench composed of a front support base, a rear support base, a front support base adjustment mechanism, and a rear support base adjustment mechanism; a transition frame; and a laser micrometer. The test bench supports the power unit under test. One end of the transition frame is coaxially connected to the top of the power unit under test, and the other end of the transition frame abuts against a load-bearing wall. The laser micrometer is rotatably mounted on the other end of the transition frame. The device includes:

[0029] The acquisition module is used to acquire a first distance, a second distance, a third distance, and a fourth distance measured by the laser micrometer when the laser micrometer rotates around the axis of the power device under test. The first distance is the distance between the laser emitting end of the laser micrometer and the load-bearing wall when the laser micrometer corresponds to the highest point of the power device under test. The second distance is the distance between the laser emitting end of the laser micrometer and the load-bearing wall when the laser micrometer corresponds to the lowest point of the power device under test. The third distance is the distance between the laser emitting end of the laser micrometer and the load-bearing wall when the laser micrometer corresponds to the leftmost point of the power device under test. The fourth distance is the distance between the laser emitting end of the laser micrometer and the load-bearing wall when the laser micrometer corresponds to the rightmost point of the power device under test.

[0030] The first processing module is used to calculate a first distance difference based on the first distance and the second distance;

[0031] The second processing module is used to calculate the longitudinal adjustment required by the measured power device based on the first distance difference, the rotation diameter of the laser micrometer, and the distance between the front support and the rear support.

[0032] The third processing module is used to calculate the second distance difference based on the third distance and the fourth distance;

[0033] The fourth processing module is used to calculate the required lateral adjustment amount of the measured power device based on the second distance difference, the rotation diameter of the laser micrometer, and the distance between the front support and the rear support.

[0034] The attitude adjustment amount determination module is used to determine the attitude adjustment amount of the front support adjustment mechanism and / or the rear support adjustment mechanism based on the longitudinal adjustment amount and the lateral adjustment amount.

[0035] In one possible implementation, the second processing module is specifically used for:

[0036] according to Calculate the required longitudinal adjustment amount for the power device under test;

[0037] Wherein, a′ is the longitudinal adjustment amount required for the measured power device, a is the first distance difference, b′ is the distance between the front support and the rear support, and b is the rotation diameter of the laser micrometer.

[0038] Thirdly, embodiments of the present invention provide a terminal, including a memory and a processor, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the steps of the method as described in the first aspect or any possible implementation thereof.

[0039] Fourthly, embodiments of the present invention provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the method as described in the first aspect or any possible implementation thereof.

[0040] This invention provides a method, device, terminal, and storage medium for adjusting the attitude of a power device assembly. A power device assembly and adjustment test system is formed by a test bench (comprised of a front support base, a rear support base, a front support base adjustment mechanism, and a rear support base adjustment mechanism), a transition frame, and a laser micrometer. The test bench supports the power device under test. One end of the transition frame is coaxially connected to the top of the power device under test, and the other end of the transition frame abuts against a load-bearing wall. The laser micrometer is rotatably mounted on the other end of the transition frame. As the laser micrometer rotates around the axis of the power device under test, it acquires a first, second, third, and fourth distance. The first, second, third, and fourth distances are the distances between the laser emitter and the load-bearing wall at the highest, lowest, leftmost, and rightmost points of the power device under test, respectively. Based on the first and second distances, a first distance difference is calculated. The first distance difference, the rotation diameter of the laser micrometer, and the front support base are then used to calculate the distance. The required longitudinal adjustment of the tested power device is calculated based on the distance between the support base and the rear support base. The second distance difference is calculated based on the third and fourth distances. The required lateral adjustment of the tested power device is then calculated based on the second distance difference, the rotation diameter of the laser micrometer, and the distance between the front and rear support bases. Based on the longitudinal and lateral adjustment amounts, the attitude adjustment amounts of the front and / or rear support base adjustment mechanisms are determined. This allows for non-contact detection of the attitude of various types of tested power devices using a laser micrometer, based on the power device assembly and adjustment test system. This improves the accuracy and efficiency of attitude detection, thereby reducing manual intervention in the testing process, shortening test preparation time, enhancing test safety, increasing test automation, enabling rapid assembly and adjustment of the tested power device, improving the working environment, increasing safety, and reducing the workload of on-site operators while improving work efficiency and accuracy. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention, 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 these drawings without creative effort.

[0042] Figure 1 This is a partial structural schematic diagram of the power unit assembly and testing system provided in an embodiment of the present invention;

[0043] Figure 2 This is another structural schematic diagram of the power unit assembly and testing system provided in this embodiment of the invention;

[0044] Figure 3This is a schematic diagram of the posture detection fixture provided in an embodiment of the present invention;

[0045] Figure 4 This is a schematic diagram of the accuracy calculation of the laser micrometer provided in an embodiment of the present invention;

[0046] Figure 5 This is a flowchart illustrating the implementation of the power unit attitude adjustment method provided in this embodiment of the invention.

[0047] Figure 6 This is a schematic diagram of the installation and adjustment of the elevation angle of the power device under test provided in an embodiment of the present invention;

[0048] Figure 7 This is a schematic diagram of the structure of the power unit mounting attitude adjustment device provided in an embodiment of the present invention;

[0049] Figure 8 This is a schematic diagram of the terminal (i.e., host computer) provided in an embodiment of the present invention. Detailed Implementation

[0050] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0051] To make the objectives, technical solutions, and advantages of the present invention clearer, specific embodiments will be described below in conjunction with the accompanying drawings.

[0052] Figure 1 and Figure 2 This is a schematic diagram of the power unit assembly and testing system provided in an embodiment of the present invention. Figure 1 and Figure 2 As shown, the power unit assembly and adjustment test system includes a test bench consisting of a test bench body 1, a front support 2, a rear support 3, a front support adjustment mechanism 4, and a rear support adjustment mechanism 5, an adapter frame 6, and a laser micrometer 7.

[0053] The test bench is used to support the power device 8 under test. One end of the adapter 6 is coaxially connected to the top of the power device 8 under test, and the other end of the adapter 6 abuts against the load-bearing wall 9. The laser micrometer 7 is rotatably set at the other end of the adapter 6.

[0054] For example, one end of the adapter 6 can be directly connected to the mounting port on the top of the power device under test 8, or one end of the adapter 6 can be connected to the mounting port on the top of the power device under test 8 through an adapter tool, so that the adapter 6 can be made into a standard part and adapted to different models of the power device under test through the adapter tool.

[0055] The test bench (also known as the quick-assembly test bench) consisting of the test bench body 1, the front support seat 2, the rear support seat 3, the front support seat adjustment mechanism 4, and the rear support seat adjustment mechanism 5 serves to fix and support the power device under test, as well as to realize the attitude adjustment of the power device under test.

[0056] The adapter 6 and the laser micrometer 7 together constitute the attitude detection fixture, which is used to perform attitude detection and coordinate system calibration on the power device under test, and realize the real-time attitude measurement of the power device under test.

[0057] The power unit assembly and adjustment test system may also include a host computer, which is used to execute the following power unit assembly and adjustment attitude adjustment method, realize the calculation of the data of the attitude detection tooling detection processing, obtain the attitude deviation of the power unit under test, and use it to guide the rapid assembly and adjustment test bench to adjust and correct the attitude deviation.

[0058] Among them, combined Figure 1 As shown, in the rapid assembly and adjustment test bench, the bench body 1 can be a high-strength bench to provide a safe and stable support platform. For example, the bench body 1 can be welded from 45# carbon steel and treated with surface rust prevention.

[0059] The front support 2 and the rear support 3 can each include two sets of two V-shaped seats to accommodate different models of products (i.e., the power devices under test), realize product support, fixation and leveling, and prevent the product from flying out during the test.

[0060] The front support adjustment mechanism 4 and the rear support adjustment mechanism 5 adjust the positions of the front support 2 and the rear support 3 respectively to support different products.

[0061] Both the front support adjustment mechanism 4 and the rear support adjustment mechanism 5 can be equipped with adjustment handwheels, which save time and effort and are convenient and quick to use. For example, both the front support adjustment mechanism 4 and the rear support adjustment mechanism 5 can include a left longitudinal adjustment handwheel, a right longitudinal adjustment handwheel, a left adjustment handwheel, and a right adjustment handwheel to achieve upward, downward, leftward, and rightward adjustment.

[0062] The power unit assembly and adjustment test system, also known as the rapid assembly and adjustment test bench, may include an elastic protective cover 10. The elastic protective cover 10 can cover the surface of the bench body 1. The front support 2 and the rear support 3 can both be mounted on the elastic protective cover 10. The elastic protective cover 10 can protect critical components and extend their service life. For example, the elastic protective cover 10 can be made of stainless steel.

[0063] The quick assembly and adjustment test bench provided in this embodiment can ensure the overall safety of the power device under test and is easy to operate.

[0064] For certain types of power devices under test, the presence of other structural components on their outer contour makes contact-based attitude detection methods inconvenient and can sometimes lead to significant interference. To address this, a specialized attitude detection fixture was designed to detect their attitude.

[0065] Combination Figure 2 and Figure 3 As shown, the power unit assembly and testing system may also include: a fixed plate 11, and the adapter 6 may include a main frame 61, a turntable 62 and a connecting plate 63, which together constitute an attitude detection fixture.

[0066] One end of the main frame 61 can be connected to the mounting port on the top of the power device 8 under test, thereby achieving a coaxial connection between one end of the adapter 6 and the top of the power device 8 under test. The other end of the main frame 61 can be mounted on the turntable 62, and the connecting plate 63 is set on the turntable 62. The laser micrometer 7 is set on the connecting plate 63, and the turntable 62 abuts against the load-bearing wall 9 through the fixing plate 11.

[0067] In this embodiment, the attitude detection fixture mainly includes a main frame 61, a turntable 62, a connecting plate 63, and a laser micrometer 7. One end of the main frame 61 is connected to the mounting port on the top of the power device 8 under test, facilitating the installation and disassembly of the power device under test. The laser micrometer 7 is also mounted on the turntable 62 via the connecting plate 63. The rotation axis of the turntable 62 is coaxial with the mounting axis of the power device 8 under test. The rotation of the turntable 62 can be considered as a corresponding rotation around the axis of the power device 8 under test. Through the rotation of the turntable 62, the laser micrometer 7 can be driven to rotate, thereby realizing non-contact measurement of the distance between the power device 8 under test and the load-bearing wall 9 based on the laser micrometer 7. This simplifies and reduces the measurement process of the attitude measurement of the power device 8 under test, thus helping to determine the attitude of the power device 8 under test and make adjustments.

[0068] In addition, such as Figure 3 As shown, a measuring wheel 64 and a code disk 65 can also be installed on the turntable 62 to measure the angle through which the turntable 62 has rotated.

[0069] Combination Figure 4 Analyzing the detection accuracy of the laser micrometer 7, such as... Figure 4 As shown, when the installation axis of the power device 7 under test is not perpendicular to the fixed plate 11, i.e. the load-bearing wall 9, it can be assumed that there is an angle θ between the installation axis and the perpendicular line of the fixed plate 11. This angle θ is the pitch angle or heading angle between the power device 7 under test and the load-bearing wall 9.

[0070] After the laser micrometer 7, mounted on the turntable 62 via the connecting plate 63, rotates one revolution, the distance from the farthest point between the top of the corresponding power device 8 and the load-bearing wall 9 to the load-bearing wall 9 can be measured, i.e., the farthest distance L. max And measure the distance from the nearest point between the top of the power device 8 and the load-bearing wall 9 to the load-bearing wall 9, that is, the nearest distance L. min Therefore, the corresponding included angle θ can be calculated:

[0071] During the calculation process, Figure 4 ΔL=L max -L min D is the rotation diameter of the laser micrometer 7. Since the pitch or yaw angle between the measured power device 7 and the load-bearing wall 9 is generally very small, that is, the included angle θ is very small, it can be assumed that θ = tanθ, that is...

[0072] The attitude detection accuracy generally needs to be controlled within a perpendicularity error of less than 15 points. Assuming the maximum rotation diameter D of the laser micrometer 7 is 100mm, when there is a 15-point error in the perpendicularity between the mounting axis of the measured power device 8 and the fixed plate 11, the furthest distance L... max With the nearest distance L min Maximum phase difference The laser micrometer has a detection accuracy of ±2.2μm, so the detection accuracy of the laser micrometer 7 can meet the attitude detection requirements. Therefore, the following power unit assembly and adjustment attitude adjustment method can be performed based on the power unit assembly and adjustment test system provided in this embodiment of the invention.

[0073] Based on the above analysis, see [link / reference] Figure 5 The document illustrates a flowchart of the power unit assembly and adjustment attitude adjustment method provided in an embodiment of the present invention. This method can be applied to the aforementioned power unit assembly and adjustment test system, specifically to the host computer within the aforementioned power unit assembly and adjustment test system, as detailed below:

[0074] In step 501, as the laser micrometer rotates around the axis of the power device being measured, the first distance, second distance, third distance, and fourth distance measured by the laser micrometer are acquired.

[0075] The first distance is the distance between the laser emitter and the load-bearing wall when the laser micrometer corresponds to the highest point of the measured power device.

[0076] The second distance is the distance between the laser emitter and the load-bearing wall when the laser micrometer corresponds to the lowest point of the power device being measured.

[0077] The third distance is the distance between the laser emitter and the load-bearing wall when the laser micrometer corresponds to the leftmost point of the measured power device.

[0078] The fourth distance is the distance between the laser emitter and the load-bearing wall when the laser micrometer corresponds to the rightmost point of the measured power device.

[0079] In step 502, the first distance difference is calculated based on the first distance and the second distance.

[0080] For example, the difference between the first distance and the second distance is calculated to obtain the first distance difference.

[0081] In step 503, the longitudinal adjustment required for the tested power device is calculated based on the first distance difference, the rotation diameter of the laser micrometer, and the distance between the front support and the rear support.

[0082] For example, it can be based on Calculate the required longitudinal adjustment amount for the power unit under test.

[0083] Where a′ is the longitudinal adjustment amount required for the measured power device, a is the first distance difference, b′ is the distance between the front support and the rear support, and b is the rotation diameter of the laser micrometer.

[0084] In step 504, the second distance difference is calculated based on the third distance and the fourth distance.

[0085] For example, the difference between the third distance and the fourth distance is calculated, which is equivalent to calculating the second distance difference.

[0086] In step 505, the required lateral adjustment of the power device under test is calculated based on the second distance difference, the rotation diameter of the laser micrometer, and the distance between the front support and the rear support.

[0087] For example, it can be based on Calculate the lateral adjustment required for the tested power unit.

[0088] Where a′0 is the lateral adjustment required by the tested power device, and a0 is the second distance difference.

[0089] In step 506, the attitude adjustment amount of the front support adjustment mechanism and / or the rear support adjustment mechanism is determined based on the longitudinal adjustment amount and the lateral adjustment amount.

[0090] For example, both the front support adjustment mechanism and the rear support adjustment mechanism may include a left longitudinal adjustment handwheel, a right longitudinal adjustment handwheel, a leftward adjustment handwheel, and a rightward adjustment handwheel.

[0091] Determining the attitude adjustment amounts of the front support adjustment mechanism and / or rear support adjustment mechanism based on the longitudinal and lateral adjustment amounts may include:

[0092] The number of rotations of the left or right longitudinal adjustment handwheel is determined based on the longitudinal adjustment amount and the longitudinal movement distance of the tested power device when the left or right longitudinal adjustment handwheel rotates one revolution.

[0093] The number of adjustments made by turning the left or right handwheel is determined based on the lateral adjustment amount and the lateral movement distance of the tested power device when the left or right handwheel is rotated one revolution.

[0094] For example, it can be based on Determine the number of turns to make the left or right longitudinal adjustment handwheel.

[0095] Where n1 is the number of turns of the left or right longitudinal adjustment handwheel, a′ is the longitudinal adjustment amount, and h is the longitudinal movement distance of the tested power device when the left or right longitudinal adjustment handwheel rotates one revolution.

[0096] For example, it can be based on Determine the number of turns to adjust the handwheel to the left or right.

[0097] Where n2 is the number of turns of the handwheel to the left or right, a′ is the lateral adjustment amount, and l is the lateral movement distance of the tested power device when the handwheel to the left or right rotates one revolution.

[0098] Combination Figure 6 As shown, the angle α of triangle Y formed by the installation axis of the power device 8 under test, the horizontal line, and the vertical line of the rear support 3 is the pitch angle between the power device 8 under test and the load-bearing pile.

[0099] Triangle X is the triangle formed between the front support 2 and the rear support 3. Side b′ of triangle X is parallel to the horizontal line, and side a′ of triangle X is parallel to the load-bearing pile. It can be seen that angle A′ of triangle X is equal to angle α of triangle Y. Triangle X and triangle Y are proportional triangles. Side b′ of triangle X is the distance between the front support and the rear support.

[0100] Let x be the first distance and y be the second distance. The difference between the first and second distances is line segment a (i.e., the difference in the first distance). Draw a perpendicular line b from the vertex of line segment a to the line segment containing x (the length of the perpendicular line b is the rotation diameter of the laser micrometer). Line segment a, perpendicular line b, and the load-bearing pile form triangle Z. The line containing the load-bearing pile and perpendicular line b are perpendicular to one right-angled side and one hypotenuse of triangle Y, respectively. Therefore, triangle Z and triangle Y are proportional triangles.

[0101] Based on the actual site conditions, the following parameters can be configured by the user:

[0102] The rotation radius r of the laser micrometer; the distance h (longitudinal movement distance) of the measured power device when the handwheel is turned one revolution; the distance l (lateral movement distance) of the measured power device when the handwheel is turned one revolution.

[0103] To make the pitch angle α of the tested power device 0°, it is necessary to find the length of side a′ of triangle X. When side a′ is 0, the pitch angle α of the tested power device is 0°.

[0104] To find the length of side a′ of triangle X:

[0105] In triangle Z, a = yx, where x and y can be obtained by measuring with a laser micrometer, and b is the rotation diameter of the laser micrometer, i.e., b = 2r.

[0106] During initial setup and adjustment, the positions of the front and rear support seats will be recommended based on the length, front diameter, and rear diameter of the power device under test. Therefore, in triangle X, the length of side b′ can be determined as the distance between the front and rear support seats, which is the front support seat position minus the rear support seat position.

[0107] Since triangle X and triangle Y are proportional, and triangle Z and triangle Y are proportional, triangle X and triangle Z are proportional, therefore angle A and angle A′ are equal.

[0108] because Therefore, we can obtain

[0109] Similarly, by replacing the x and y values ​​with the measured values ​​of the third and fourth distances, the required lateral adjustment for the heading angle of the tested equipment can be calculated.

[0110] The heading angle can be divided into positive and negative angles with the horizontal line as the central axis. For example, a positive degree represents a yaw to the left, and a negative degree represents a yaw to the right. A positive degree adjusts the pulley on the right (e.g., adjust the handwheel to the right), and a negative degree adjusts the pulley on the left (e.g., adjust the handwheel to the left).

[0111] It should be noted that when adjusting the attitude of the tested power unit, the adjustment sequence should be to first adjust the pitch angle to 0°, and then adjust the yaw angle to 0°. Specifically, the pitch angle adjustment should be performed simultaneously on both the left and right pulleys (i.e., the left and right longitudinal adjustment handwheels), adjusting each pulley a certain number of turns. Adjust the corresponding side pulley according to the positive or negative degree of the heading angle, and adjust the number of turns of the pulley accordingly.

[0112] This embodiment aims to improve the detection of assembly and adjustment posture by constructing a rapid assembly and adjustment test bench to form a power unit assembly and adjustment test system. This system enables rapid installation and debugging of products on the test bench, rapid acquisition of product status, reduces the number of manual interventions in the testing process, shortens test preparation time, improves test safety operation capabilities, and enhances the level of test automation. Ultimately, it aims to reduce personnel involvement, improve test efficiency, reduce the intensity of personnel work, enhance test simulation analysis capabilities, and comprehensively improve test safety and efficiency.

[0113] The power unit assembly and adjustment testing system provided in this embodiment can utilize modern technology and intelligent methods to achieve rapid assembly and adjustment of the tested power unit, improve the working environment for personnel, increase the safety factor, and reduce the workload of on-site operators while improving work efficiency and accuracy. Furthermore, the power unit assembly and adjustment testing system of this embodiment can guide attitude adjustment based on feedback from a laser micrometer and a host computer, and can also provide real-time feedback on the attitude adjustment results. This deeply integrates information technology, modeling and simulation, high-precision measurement, and automatic control, achieving comprehensive perception, full control, and lean management throughout the entire operation process.

[0114] This invention provides a power device assembly and testing system comprised of a test bench (consisting of a front support base, a rear support base, a front support base adjustment mechanism, and a rear support base adjustment mechanism), an adapter frame, and a laser micrometer. The test bench supports the power device under test. One end of the adapter frame is coaxially connected to the top of the power device under test, and the other end abuts against a load-bearing wall. The laser micrometer is rotatably mounted on the other end of the adapter frame. As the laser micrometer rotates around the axis of the power device under test, it can acquire a first, second, third, and fourth distance. These distances represent the distances between the laser emitter and the load-bearing wall at the highest, lowest, leftmost, and rightmost points of the power device under test, respectively. Based on the first and second distances, a first distance difference is calculated. The system is then analyzed using the first distance difference, the rotation diameter of the laser micrometer, and the distance between the front and rear support bases. The required longitudinal adjustment amount for the tested power device is calculated; and based on the third and fourth distances, the difference in the second distance is calculated. Based on the difference in the second distance, the rotation diameter of the laser micrometer, and the distance between the front and rear support seats, the required lateral adjustment amount for the tested power device is calculated. Thus, based on the longitudinal and lateral adjustment amounts, the attitude adjustment amounts of the front and / or rear support seat adjustment mechanisms are determined. This allows for non-contact detection of the attitude of various types of tested power devices using a laser micrometer, based on the power device assembly and adjustment test system, and determination of the attitude adjustment amount. This improves the accuracy and efficiency of attitude detection for the tested power device, thereby reducing manual intervention in the testing process, shortening test preparation time, enhancing test safety capabilities, improving the level of test automation, enabling rapid assembly and adjustment of the tested power device, improving the working environment for personnel, increasing the safety factor, and reducing the workload of on-site operators while improving work efficiency and accuracy.

[0115] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0116] The following are embodiments of the apparatus of the present invention. For details not described in detail, please refer to the corresponding method embodiments described above.

[0117] Figure 7A schematic diagram of the structure of a power unit assembly and adjustment attitude adjustment device provided in an embodiment of the present invention is shown. This device is applied in a power unit assembly and adjustment test system. The power unit assembly and adjustment test system includes a test bench composed of a front support base, a rear support base, a front support base adjustment mechanism, and a rear support base adjustment mechanism, a transition frame, and a laser micrometer. The test bench supports the power unit under test. One end of the transition frame is coaxially connected to the top of the power unit under test, and the other end of the transition frame abuts against a load-bearing wall. The laser micrometer is rotatably mounted on the other end of the transition frame. For ease of explanation, only the parts relevant to the embodiment of the present invention are shown, and detailed descriptions follow:

[0118] like Figure 7 As shown, the power unit attitude adjustment device includes: an acquisition module 71, a first processing module 72, a second processing module 73, a third processing module 74, a fourth processing module 75, and an attitude adjustment amount determination module 76.

[0119] The acquisition module 71 is used to acquire a first distance, a second distance, a third distance, and a fourth distance measured by the laser micrometer when the laser micrometer rotates around the axis of the power device under test. The first distance is the distance between the laser emitting end of the laser micrometer and the load-bearing wall when the laser micrometer corresponds to the highest point of the power device under test. The second distance is the distance between the laser emitting end of the laser micrometer and the load-bearing wall when the laser micrometer corresponds to the lowest point of the power device under test. The third distance is the distance between the laser emitting end of the laser micrometer and the load-bearing wall when the laser micrometer corresponds to the leftmost point of the power device under test. The fourth distance is the distance between the laser emitting end of the laser micrometer and the load-bearing wall when the laser micrometer corresponds to the rightmost point of the power device under test.

[0120] The first processing module 72 is used to calculate a first distance difference based on the first distance and the second distance;

[0121] The second processing module 73 is used to calculate the longitudinal adjustment amount required by the measured power device based on the first distance difference, the rotation diameter of the laser micrometer, and the distance between the front support and the rear support.

[0122] The third processing module 74 is used to calculate the second distance difference based on the third distance and the fourth distance;

[0123] The fourth processing module 75 is used to calculate the required lateral adjustment amount of the power device under test based on the second distance difference, the rotation diameter of the laser micrometer, and the distance between the front support and the rear support.

[0124] The attitude adjustment amount determination module 76 is used to determine the attitude adjustment amount of the front support adjustment mechanism and / or the rear support adjustment mechanism based on the longitudinal adjustment amount and the lateral adjustment amount.

[0125] This invention provides a power device assembly and testing system comprised of a test bench (consisting of a front support base, a rear support base, a front support base adjustment mechanism, and a rear support base adjustment mechanism), an adapter frame, and a laser micrometer. The test bench supports the power device under test. One end of the adapter frame is coaxially connected to the top of the power device under test, and the other end abuts against a load-bearing wall. The laser micrometer is rotatably mounted on the other end of the adapter frame. As the laser micrometer rotates around the axis of the power device under test, it can acquire a first, second, third, and fourth distance. These distances represent the distances between the laser emitter and the load-bearing wall at the highest, lowest, leftmost, and rightmost points of the power device under test, respectively. Based on the first and second distances, a first distance difference is calculated. The system is then analyzed using the first distance difference, the rotation diameter of the laser micrometer, and the distance between the front and rear support bases. The required longitudinal adjustment amount for the tested power device is calculated; and based on the third and fourth distances, the difference in the second distance is calculated. Based on the difference in the second distance, the rotation diameter of the laser micrometer, and the distance between the front and rear support seats, the required lateral adjustment amount for the tested power device is calculated. Thus, based on the longitudinal and lateral adjustment amounts, the attitude adjustment amounts of the front and / or rear support seat adjustment mechanisms are determined. This allows for non-contact detection of the attitude of various types of tested power devices using a laser micrometer, based on the power device assembly and adjustment test system, and determination of the attitude adjustment amount. This improves the accuracy and efficiency of attitude detection for the tested power device, thereby reducing manual intervention in the testing process, shortening test preparation time, enhancing test safety capabilities, improving the level of test automation, enabling rapid assembly and adjustment of the tested power device, improving the working environment for personnel, increasing the safety factor, and reducing the workload of on-site operators while improving work efficiency and accuracy.

[0126] In one possible implementation, the second processing module 73 is specifically used for:

[0127] according to Calculate the required longitudinal adjustment amount for the power device under test.

[0128] Wherein, a′ is the longitudinal adjustment amount required for the measured power device, a is the first distance difference, b′ is the distance between the front support and the rear support, and b is the rotation diameter of the laser micrometer.

[0129] In one possible implementation, the fourth processing module 75 is specifically used for:

[0130] according to Calculate the lateral adjustment required for the tested power device.

[0131] Wherein, a′0 is the lateral adjustment amount required for the measured power device, a0 is the second distance difference, b′ is the distance between the front support and the rear support, and b is the rotation diameter of the laser micrometer.

[0132] In one possible implementation, both the front support adjustment mechanism and the rear support adjustment mechanism include a left longitudinal adjustment handwheel, a right longitudinal adjustment handwheel, a leftward adjustment handwheel, and a rightward adjustment handwheel.

[0133] The attitude adjustment amount determination module 76 is specifically used for:

[0134] The number of adjustments made by the left or right longitudinal adjustment handwheel is determined based on the longitudinal adjustment amount and the longitudinal movement distance of the tested power device when the left or right longitudinal adjustment handwheel rotates one revolution.

[0135] The number of adjustments made by the left or right adjustment handwheel is determined based on the lateral adjustment amount and the lateral movement distance of the tested power device when the left or right adjustment handwheel rotates one revolution.

[0136] In one possible implementation, the attitude adjustment determination module 76 is specifically used for:

[0137] according to Determine the number of turns for the left longitudinal adjustment handwheel or the right longitudinal adjustment handwheel.

[0138] Wherein, n1 is the number of adjustments made by the left longitudinal adjustment handwheel or the right longitudinal adjustment handwheel, a′ is the longitudinal adjustment amount, and h is the longitudinal movement distance of the tested power device when the left longitudinal adjustment handwheel or the right longitudinal adjustment handwheel rotates one revolution.

[0139] In one possible implementation, the attitude adjustment determination module 76 is specifically used for:

[0140] according to Determine the number of turns of the leftward or rightward adjustment handwheel.

[0141] Wherein, n2 is the number of turns of the left-adjusting handwheel or the right-adjusting handwheel, a′ is the lateral adjustment amount, and l is the lateral movement distance of the tested power device when the left-adjusting handwheel or the right-adjusting handwheel rotates one revolution.

[0142] Figure 8This is a schematic diagram of a terminal provided in an embodiment of the present invention. Figure 8 As shown, the terminal 8 in this embodiment includes a processor 80, a memory 81, and a computer program 82 stored in the memory 81 and executable on the processor 80. When the processor 80 executes the computer program 82, it implements the steps in the various power device assembly attitude adjustment method embodiments described above, for example... Figure 5 Steps 501 to 506 are shown. Alternatively, when processor 80 executes computer program 82, it implements the functions of each module / unit in the above-described device embodiments, for example... Figure 7 The functions of modules / units 71 to 76 shown.

[0143] For example, computer program 82 can be divided into one or more modules / units, one or more of which are stored in memory 81 and executed by processor 80 to complete the present invention. One or more modules / units can be a series of computer program instruction segments capable of performing a specific function, which describe the execution process of computer program 82 in terminal 8. For example, computer program 82 can be divided into... Figure 7 Modules / units 71 to 76 are shown.

[0144] Terminal 8 can be a computing device such as a desktop computer, laptop, handheld computer, or cloud server. Terminal 8 may include, but is not limited to, a processor 80 and a memory 81. Those skilled in the art will understand that... Figure 8 This is merely an example of terminal 8 and does not constitute a limitation on terminal 8. It may include more or fewer components than shown, or combine certain components, or different components. For example, the terminal may also include input / output devices, network access devices, buses, etc.

[0145] The processor 80 may be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0146] The memory 81 can be an internal storage unit of the terminal 8, such as a hard disk or RAM. The memory 81 can also be an external storage device of the terminal 8, such as a plug-in hard disk, Smart Media Card (SMC), Secure Digital (SD) card, or Flash Card. Furthermore, the memory 81 can include both internal and external storage units of the terminal 8. The memory 81 is used to store computer programs and other programs and data required by the terminal. The memory 81 can also be used to temporarily store data that has been output or will be output.

[0147] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0148] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0149] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0150] In the embodiments provided by this invention, it should be understood that the disclosed devices / terminals and methods can be implemented in other ways. For example, the device / terminal embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0151] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0152] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0153] If integrated modules / units are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments of the present invention can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the above-described embodiments of the power device attitude adjustment methods. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc.

[0154] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A power plant alignment attitude adjustment method, characterized by, The method is applied to a power device assembly and adjustment test system, the power device assembly and adjustment test system comprises a test bench composed of a front end support base, a rear end support base, a front end support base adjusting mechanism, a rear end support base adjusting mechanism, an adapter frame and a laser micrometer, the test bench is used for supporting a measured power device, one end of the adapter frame is coaxially connected with a top of the measured power device, the other end of the adapter frame is abutted with a force bearing wall, the laser micrometer is rotationally arranged at the other end of the adapter frame, and the method comprises the following steps: When the laser micrometer rotates around an axis of the measured power device, a first distance, a second distance, a third distance and a fourth distance measured by the laser micrometer are acquired, the first distance is a distance between a laser emitting end of the laser micrometer and the force bearing wall when the laser micrometer corresponds to a highest point of the measured power device, the second distance is a distance between the laser emitting end of the laser micrometer and the force bearing wall when the laser micrometer corresponds to a lowest point of the measured power device, the third distance is a distance between the laser emitting end of the laser micrometer and the force bearing wall when the laser micrometer corresponds to a leftmost point of the measured power device, and the fourth distance is a distance between the laser emitting end of the laser micrometer and the force bearing wall when the laser micrometer corresponds to a rightmost point of the measured power device; a first distance difference value is calculated according to the first distance and the second distance; a longitudinal adjustment amount required by the measured power device is calculated according to the first distance difference value, a rotating diameter of the laser micrometer and a spacing between the front end support base and the rear end support base; a second distance difference value is calculated according to the third distance and the fourth distance; a transverse adjustment amount required by the measured power device is calculated according to the second distance difference value, the rotating diameter of the laser micrometer and the spacing between the front end support base and the rear end support base; a posture adjustment amount of the front end support base adjusting mechanism and / or the rear end support base adjusting mechanism is determined according to the longitudinal adjustment amount and the transverse adjustment amount; wherein the longitudinal adjustment amount required by the measured power device is calculated according to the first distance difference value, the rotating diameter of the laser micrometer and the spacing between the front end support base and the rear end support base, and the longitudinal adjustment amount required by the measured power device comprises the following steps: According to , calculating the longitudinal adjustment amount required by the measured power device; wherein, a longitudinal adjustment amount required for the measured power device, a first distance difference value, a distance between the front end support base and the rear end support base, a rotation diameter of the laser micrometer; wherein the transverse adjustment amount required by the measured power device is calculated according to the second distance difference value, the rotating diameter of the laser micrometer and the spacing between the front end support base and the rear end support base, and the transverse adjustment amount required by the measured power device comprises the following steps: According to , the lateral adjustment amount required by the measured power device is calculated; wherein, a lateral adjustment amount required for the measured power device, a second distance difference value, a distance between the front end support seat and the rear end support seat, a rotation diameter of the laser micrometer.

2. The power plant alignment attitude adjustment method of claim 1, wherein the front end support base adjusting mechanism and the rear end support base adjusting mechanism both comprise a left side longitudinal adjustment hand wheel, a right side longitudinal adjustment hand wheel, a left adjustment hand wheel and a right adjustment hand wheel; the posture adjustment amount of the front end support base adjusting mechanism and / or the rear end support base adjusting mechanism is determined according to the longitudinal adjustment amount and the transverse adjustment amount, and the posture adjustment amount of the front end support base adjusting mechanism and / or the rear end support base adjusting mechanism comprises the following steps: the adjustment number of the left side longitudinal adjustment hand wheel or the right side longitudinal adjustment hand wheel is determined according to the longitudinal movement distance of the measured power device when the left side longitudinal adjustment hand wheel or the right side longitudinal adjustment hand wheel rotates one circle. Determine the number of adjustment circles of the left or right adjustment handle according to the lateral adjustment amount, the lateral moving distance of the measured power device when the left or right adjustment handle rotates one circle.

3. The power plant alignment attitude adjustment method of claim 2, wherein Determine the number of adjustment circles of the left or right longitudinal adjustment handle according to the longitudinal adjustment amount, the longitudinal moving distance of the measured power device when the left or right longitudinal adjustment handle rotates one circle, comprising: According to , the number of turns of adjustment of the left or right longitudinal adjustment hand wheel is determined; wherein, is the number of turns of the left or right longitudinal adjustment hand wheel, is the longitudinal adjustment amount, is the longitudinal movement distance of the measured power device when the left or right longitudinal adjustment hand wheel is rotated one turn.

4. The power plant alignment attitude adjustment method of claim 2, wherein Determine the number of adjustment circles of the left or right adjustment handle according to the lateral adjustment amount, the lateral moving distance of the measured power device when the left or right adjustment handle rotates one circle. According to , the number of turns of adjustment of the left adjustment hand wheel or the right adjustment hand wheel is determined; wherein, is the number of turns of the left or right adjustment handle, is the lateral adjustment amount, is the lateral movement distance of the measured power device when the left or right adjustment handle is rotated one turn.

5. A power plant alignment attitude adjustment device, characterized by, The device is applied to a power device installation and adjustment test system, the power device installation and adjustment test system comprises a test bench composed of a front end support base, a rear end support base, a front end support base adjustment mechanism, a rear end support base adjustment mechanism, an adapter frame and a laser micrometer, the test bench is used for supporting a measured power device, one end of the adapter frame is coaxially connected with the top of the measured power device, the other end of the adapter frame is abutted with a force bearing wall, the laser micrometer is rotationally arranged at the other end of the adapter frame, and the device comprises: A first distance, a second distance, a third distance and a fourth distance measured by the laser micrometer are acquired when the laser micrometer rotates around the axis of the measured power device, the first distance is the distance between the laser emission end and the force bearing wall when the laser micrometer corresponds to the highest point of the measured power device, the second distance is the distance between the laser emission end and the force bearing wall when the laser micrometer corresponds to the lowest point of the measured power device, the third distance is the distance between the laser emission end and the force bearing wall when the laser micrometer corresponds to the leftmost point of the measured power device, and the fourth distance is the distance between the laser emission end and the force bearing wall when the laser micrometer corresponds to the rightmost point of the measured power device. A first distance difference value is calculated according to the first distance and the second distance. A second distance difference value is calculated according to the third distance and the fourth distance. A fourth processing module is configured to calculate the lateral adjustment amount required by the measured power device according to the second distance difference value, the rotation diameter of the laser micrometer and the interval between the front end support base and the rear end support base. A posture adjustment amount determination module is configured to determine the posture adjustment amount of the front end support base adjustment mechanism and / or the rear end support base adjustment mechanism according to the longitudinal adjustment amount and the lateral adjustment amount. The second processing module is specifically configured to: The fourth processing module is specifically configured to: According to , calculating the longitudinal adjustment amount required for the measured power device; wherein, a longitudinal adjustment amount required for the measured power device, a first distance difference value, a distance between the front end support base and the rear end support base, a rotation diameter of the laser micrometer; ​ According to , the lateral adjustment amount required by the measured power device is calculated; wherein, a lateral adjustment amount required for the measured power device, a second distance difference value, a distance between the front end support base and the rear end support base, a rotation diameter of the laser micrometer.

6. A terminal, characterized by comprising: A computer program product comprising a memory for storing a computer program and a processor for invoking and running the computer program stored in the memory, for performing the method of any of claims 1 to 4.

7. A computer-readable storage medium storing a computer program, wherein the computer program comprises the following steps of: receiving a request for a resource from a client; determining whether the client is authorized to access the resource; and if the client is authorized to access the resource, providing the resource to the client. The computer program, which when executed by a processor, implements the steps of the method of any of claims 1 to 4.

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