A display control method of a multi-shaft three-dimensional dynamic motion simulation display device

Abstract

The present application relates to the field of science and education display, and particularly relates to a display control method of a multi-axle three-dimensional dynamic pseudo-motion phenomenon display device, which comprises the following steps: S1, setting up a three-dimensional dynamic pseudo-motion phenomenon display device; S2, representing the pseudo-motion phenomenon effect of the display device by a control function G; S3, establishing a target function library, selecting the best function from the target function library, and obtaining the optimal solution of each coefficient in the control function G by using the least square method; S4, determining the rotation angular velocity range of the control function G; S5, combining the control function G to establish an input parameter database, constructing a machine learning control algorithm, and thus self-adjusting the associated parameters affecting the control function G. The present application can present the best display effect for different people in different environments.

Description

Technical Field

[0001] This invention relates to the field of science and education display, specifically a display control method for a multi-axis three-dimensional dynamic apparent motion phenomenon display device. Background Technology

[0002] Apparent motion is the phenomenon of perceiving a stationary object as moving or a discontinuous displacement as continuous motion; it is a form of motion perception generated through psychological compensation. Visual persistence is the phenomenon where the visual image produced by light on the retina remains for a short period after the light source stops acting on it, typically between one-thirtieth and one-fifth of a second. While visual persistence is a physiological phenomenon, the "psychological compensation" of apparent motion further explains the psychological process of organizing consecutive similar images in the brain, thus differentiating similar images as dynamic images, creating a smooth transition between isolated scenes and generating visual dynamism. Apparent motion and visual persistence are related to light intensity, environment, and the degree of visual fatigue. The interval between actions and the duration of persistence are related to the intensity and duration of the light stimulus, as well as factors such as color. Apparent motion and visual persistence can be utilized in the production and dissemination of visual media such as animation and film.

[0003] In actual science education, the phenomenon of visual persistence is often demonstrated using high-speed rotating models. When observing a high-speed rotating object, a strobe effect is generated by adjusting the flashing frequency of strobe lights. When the flashing frequency is close to or synchronized with the speed of the rotating or moving object being observed, the high-speed moving object appears to be moving slowly or stationary, thus achieving an animation process. However, current display devices require motion models to be placed on the display layer when displaying animations. The same number of motion models can produce continuous animation effects when rotating in the same plane, and layered animation effects when rotating at different heights. However, to achieve continuous animation effects and layered animation effects, two sets of display devices are usually required respectively. A single display device cannot simultaneously display continuous animation effects and layered animation effects, resulting in a simplistic display process.

[0004] At the same time, due to the different environments in which the display devices are set up and the different groups of people being shown them, the display devices cannot use a single parameter setting to present the best display effect to everyone, so this problem urgently needs to be solved. Summary of the Invention

[0005] To avoid and overcome the technical problems existing in the prior art, this invention provides a display control method for a multi-axis three-dimensional dynamic apparent motion phenomenon display device. This invention can present the best display effect for different groups of people in different environments.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A display control method for a multi-axis three-dimensional dynamic apparent motion phenomenon display device includes the following steps:

[0008] S1. Construct a display device for three-dimensional dynamic apparent motion phenomena;

[0009] S2. The apparent motion effect of the display device is represented by the control function G:

[0010] G∝αf(T j [f(Q) / f(R)]

[0011] α represents the degree of visual fatigue;

[0012] T j Display time intervals for actions;

[0013] Q represents the light source intensity of the display device;

[0014] R represents the spatial distance between the motion models on the display device;

[0015] f(T j ) is T j A monotonically increasing function;

[0016] f(Q) is a monotonically increasing function of G;

[0017] f(R) is a monotonically increasing function of R;

[0018] S3. Establish an objective function library, select the best function from the objective function library, and use the least squares method to obtain the optimal solution for each coefficient in the control function G;

[0019] S4. Determine the range of rotational angular velocity of the control function G;

[0020] S5. Combine the control function G to establish an input parameter database, construct a machine learning control algorithm, and thus self-adjust the related parameters that affect the control function G.

[0021] As a further aspect of the present invention: In step S3, when obtaining the optimal solution for each coefficient in the control function G, the least squares method is performed using a matrix method, the matrix form of which is:

[0022] f θ (x1,x2,...,x n )=θ0+θ1x1+...+θ n x n

[0023]

[0024] Where, x n For input variables;

[0025] y m The dependent variable;

[0026] m and n are the quantities of each variable.

[0027] θ n For parameters;

[0028] θ is (θ1, θ2, ..., θ n A matrix of )

[0029] X is (x1, x2, ..., x) n A matrix of )

[0030] Y is (y1, y2, ..., y m A matrix of )

[0031] T represents transpose;

[0032] The loss residual function J(θ) is obtained using the least squares method:

[0033]

[0034] Where (x,y) is a pair of observations;

[0035] tr represents the sum of the eigenvalues ​​of the matrix;

[0036] The minimum value of the residual function J(θ) is found by using the normal vector solution of linear equations or the gradient descent method, and the best fitting function with optimal parameters is obtained based on the specified sample data.

[0037] As a further embodiment of the present invention: f(T)∝f(a,b,c);

[0038] f(Q) ∝ f(d,e,f);

[0039] f(R)∝f(g n );

[0040] Where 'a' represents the flicker frequency of the display device;

[0041] b represents the rotational speed of the display device;

[0042] c represents the rotation direction of the display device;

[0043] d represents the brightness of the display device;

[0044] e represents the ambient light intensity during the display process;

[0045] f represents the strobe color of the display device;

[0046] g n This refers to the circumferential distance between different display layers in the display device.

[0047] As a further aspect of the present invention: In step S4, since 2π = pn d ω、2πR=pn d v;

[0048] Where p is the visual persistence time, 0.1s≤p≤0.4s;

[0049] n d The number of motion models under flickering conditions;

[0050] ω is the angular velocity of the display layer in the display device, and π / pm d ≤ω≤2π, unit is rad / s;

[0051] m d Number of motion models;

[0052] R is the radius of the display layer in the display device;

[0053] υ represents the linear velocity of the moving model in the display device, in m / s;

[0054] The time interval between two consecutive flashes of the strobe light and the duration of the strobe light after it is lit are both t. The angle that the strobe light rotates through during time t is θ. p , 0.02°≤θ p ≤0.20°;

[0055] The relationship between t and angular velocity ω is: t = θ p / ω;

[0056] When the number of motion models under flickering conditions is 2, the rotational angular velocity of the display layer is the minimum, and the angular velocity value is:

[0057] ω min =2π / 2pm d =π / pm d rad / s;

[0058] When the number of motion models under flickering conditions is 1, the rotational angular velocity of the display layer is at its maximum, and the angular velocity value is:

[0059] ω max =2π / p = 20π rad / s;

[0060] Based on imaging principles, the range of the display layer's rotational angular velocity ω is as follows:

[0061] π / pm d ≤ω≤20πrad / s.

[0062] As a further aspect of the present invention: in step S3, the optimal function is any one of the following: linear fitting function, polynomial fitting function, first-order exponential decay fitting function, first-order exponential growth fitting function, Lorentz fitting function, and multi-peak fitting function.

[0063] As a further aspect of the present invention: In step S5, the parameters in the input parameter database include visual fatigue level α, flicker frequency a of the display device, rotation speed b of the display device, rotation direction c of the display device, flicker intensity d of the display device, ambient light intensity e of the display process, flicker color f of the display device, and circumferential distance g between different display layers in the display device. n Participants input visual state data that influences the degree of visual fatigue α. The visual state data includes normal, myopic, hyperopic, and astigmatic states. The degree of visual fatigue α and the apparent motion effect range of G in the control function are set. The number of participants is continuously increased to increase the data in the input parameter database. By self-adjusting the parameters of the control function G, the self-learning of the machine learning control algorithm is achieved.

[0064] As a further aspect of the present invention, the display device comprises the following components:

[0065] The display layer is a circular curved surface with at least two layers coaxially arranged from the inside to the outside. Each display layer presents a pattern effect after being illuminated by light.

[0066] The number of rotating axes corresponds to the number of display layers, and each rotating axis is fixed coaxially with the corresponding display layer from the inside out. The rotating axes are nested together and rotate coaxially.

[0067] The drive unit drives each rotating axis to rotate the corresponding display layer;

[0068] The lifting section raises or lowers each display layer to make the display layers at the same height or staggered at the same height.

[0069] Each of the display layers is arranged on a support base, and a fixed base is arranged parallel to the support base below it. From the inside out, the length of each rotating shaft decreases sequentially, and each rotating shaft passes through the support base and extends towards the fixed base. The innermost rotating shaft is installed on the fixed base and rotates in cooperation with the fixed base. The lifting part is a hydraulic cylinder arranged vertically on the fixed base, and the driving end of the hydraulic cylinder is connected to the support base. When the hydraulic cylinder is extended to its limit, each display layer is at the same height.

[0070] As a further aspect of the present invention: two adjacent rotating shafts are respectively the inner rotating shaft and the outer rotating shaft. A support bearing is sleeved on the inner rotating shaft, and the support bearing on the inner rotating shaft and the outer rotating shaft intersect in the vertical direction; when the hydraulic cylinder is extended to its limit, the distance between the support bearing on the inner rotating shaft and the outer rotating shaft is equal to the height of the display layer corresponding to the inner rotating shaft.

[0071] As a further embodiment of the present invention: the driving unit is a gear driver corresponding to the number of rotating shafts, and each gear driver is fixedly connected to the outer ring of the corresponding support bearing; each rotating shaft is provided with a transmission gear below the support bearing and drives the corresponding gear driver through the transmission gear meshing; the support base and / or fixed base are provided with a limiting component to restrict the rotation of the gear driver with the corresponding rotating shaft; a limiting slide rail is arranged below the support base along the vertical direction and passes through the fixed base, and the limiting slide rail is the limiting component; each gear driver is fixed on the limiting slide rail and can slide vertically along the limiting slide rail.

[0072] As a further embodiment of the present invention: the fixing seat is coaxially fixed inside the cover, the support seat slides and engages with the cover in the vertical direction, and the cover is a glass cover; the top of the cover is provided with a colored strobe band corresponding to the number and position of each display layer.

[0073] Compared with the prior art, the beneficial effects of the present invention are:

[0074] 1. Through the continuous accumulation of input data and the improvement of the database, this invention can realize the self-learning, self-optimization, and self-adjustment of the control function. It optimizes the correlation parameters that affect the display effect for different environments and different visitor groups, and presents the best display effect for different groups of people in different environments.

[0075] 2. This invention features multiple display layers. When the display layers are at the same height and illuminated, they can overlap to form a continuous animation effect. When each display layer is raised to change its height, they can be staggered to form independent layered animations. A single display device can switch between continuous animation mode and layered animation mode to achieve multiple animation processes. The displayed animation processes are diverse and meet the needs of actual science and education teaching.

[0076] 3. This invention uses a hydraulic cylinder as the lifting power source. The initial working state is when the hydraulic cylinder is extended to its limit. At this time, all display layers are at the same height, and when they rotate, they remain at the same height, thus producing overlapping continuous animations. When the hydraulic cylinder retracts, the height of the innermost display layer remains unchanged, while the height of the other display layers and their corresponding rotation axes gradually decreases. During the height reduction process, from the inside out, the support bearings on the rotation axes successively abut against the outer ring of the rotation axis, thereby lifting it up. As the hydraulic cylinder retracts uniformly, a height difference gradually forms between the display layers. The height of the innermost display layer remains unchanged and is located at the highest point, while the height of the other display layers decreases sequentially from the inside out, so that the display layers are arranged in a stepped manner from the inside out. At this time, each display layer can produce independent layered animations when it rotates.

[0077] 4. The reasonable arrangement of the positions of each support bearing and the outer ring rotating shaft in this invention allows each display layer to be arranged in a stepped height uniformly when the hydraulic cylinder retracts to its limit state. By fixing the gear drive to the outer ring of the support bearing, the gear drive can be used as a power source to drive each rotating shaft to rotate at a predetermined speed in a meshing manner. At the same time, the limiting slide rail can ensure that each gear drive does not rotate synchronously with the rotating shaft, thus achieving stability in the rotation and lifting process.

[0078] 5. All components of the present invention are arranged inside the cover, which plays a safety protection role during actual display. The cover can guide the support base and prevent it from shifting position during lifting and lowering. Since the top of the cover is provided with a colored strobe strip corresponding to the number and position of the display layers, when each display layer accelerates to a predetermined speed, the colored light transmitted by the colored strobe strip is transmitted to the display layer, thereby displaying different action posture contours when the display layer rotates. Attached Figure Description

[0079] Figure 1 This is a schematic diagram of the structure of the device of the present invention in one of its working states.

[0080] Figure 2 This is a schematic diagram of the structure of the device of the present invention in another working state.

[0081] Figure 3 This is a control system diagram of the device shown in this invention.

[0082] In the picture:

[0083] 1. Cover;

[0084] 2. Fixed base; 21. Hydraulic cylinder; 22. Limiting slide rail;

[0085] 3. Support base; 4. Rotating shaft; 41. Support bearing;

[0086] 5. Display layer; 6. Gear driver. Detailed Implementation

[0087] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0088] Please see Figures 1-3 In this embodiment of the invention, a display control method for a multi-axis three-dimensional dynamic apparent motion phenomenon display device is provided.

[0089] Includes the following steps:

[0090] S1. Construct a display device for three-dimensional dynamic apparent motion phenomena;

[0091] The display device includes a cylindrical cover 1, which is a glass cover. Inside the cover 1, there is a fixed base 2 at the bottom and a support base 3 above the fixed base 2. Both the fixed base 2 and the support base 3 are cylindrical and their diameters match the inner diameter of the cover 1.

[0092] The fixed base 2 and the support base 3 are connected by a hydraulic cylinder 21. When the hydraulic cylinder 21 moves in extension and retraction, it can drive the support base 3 to slide in the vertical direction inside the cover 1.

[0093] The support base 3 is provided with a display layer 5, which is a circular surface. There are at least two layers of the display layer 5, and each display layer 5 is arranged coaxially from the inside to the outside. The display layer 5 is made of transparent material. Different motion models are pre-arranged on the display layer 5.

[0094] The top of the cover 1 is provided with a ring-shaped colored strobe band from the inside to the outside. The colored strobe band corresponds to the position of each display layer 5 along the vertical direction and can transmit colored light to the motion model of the display layer 5, so that different motion posture contours are displayed when the motion model rotates.

[0095] In this embodiment of the invention, the display layer 5 comprises five layers, respectively displaying the movement and posture outlines of models such as deep-sea crabs, tube worms, fungal mats, sulfur-oxidizing bacteria, and deep-sea hydrothermal vents. When each display layer 5 accelerates to a predetermined speed, the illumination frequency of the colored strobe band is coordinated with the speed of each display layer, and the five display layers can present the following three-dimensional layered animation process: the first layer shows a deep-sea octopus capturing and eating a deep-sea crab; the second layer shows a deep-sea crab moving to the side of a tube worm and eating it; the third layer shows tube worms growing next to the fungal mat, and their numbers increasing; the fourth layer shows sulfur-oxidizing bacteria absorbing nutrients, and their numbers increasing; and the fifth layer shows deep-sea hydrothermal vent eruptions. When each display layer 5 is at the same height or at staggered heights, the animations of each layer can overlap to form a continuous animation, or the layers can be layered at different heights to form independent layered animations.

[0096] To drive each display layer 5, the outermost display layer 5 is typically fixed at a constant height on the support base 3 and rotates coaxially with the support base 3, while the remaining display layers 5 can rise relative to the support base 3. Each display layer 5 is provided with a rotating shaft 4 along the axial direction, and the rotating shafts 4 are nested from the inside out and rotate coaxially with each other.

[0097] The rotating shaft 4 corresponding to the innermost display layer 5 is also located in the innermost layer. From the inside out, the length of each rotating shaft 4 decreases sequentially. The rotating shaft 4 located in the innermost layer is coaxially fixed to the support base 3 and rotates with the support base 3. The other rotating shafts 4, except for the innermost rotating shaft 4, have a certain distance between them and the support base 3.

[0098] Since each rotating shaft 4 is sleeved with the others, the shaft body of each rotating shaft 4 includes a sleeve area and a mounting area located below the sleeve area. Each rotating shaft 4 is sleeved and fixed with a support bearing 41 in the mounting area. The support bearing 41 and the rotating shaft 4 of the outer ring of the rotating shaft 4 intersect in the vertical direction.

[0099] The initial working state is when the hydraulic cylinder 21 is extended to its limit. At this time, all display layers 5 are at the same height. When the display layers 5 rotate, they are at the same height, thus producing a continuous animation of overlapping. When the hydraulic cylinder 21 retracts, the height of the innermost display layer 5 remains unchanged, while the height of the other display layers 5 and their corresponding rotating axes 4 gradually decreases. Taking two adjacent rotating axes 4 as the inner and outer rotating axes respectively, during the height reduction process, from the inside to the outside, the support bearing 41 on the inner rotating axis abuts against the outer rotating axis, thereby lifting it up. The abutment part is the inner ring of the support bearing 41.

[0100] As the hydraulic cylinder 21 retracts uniformly, a height difference gradually forms between the display layers 5. The innermost display layer 5 remains at a constant height and is located at the highest point. The heights of the other display layers 5 decrease sequentially from the inside out, so that the display layers 5 are arranged in a stepped manner from the inside out. At this time, each display layer 5 can generate an independent layered animation when it rotates.

[0101] To achieve the best display effect, the position of the support bearing 41 is adjusted so that, in the initial working state, the distance between the support bearing 41 on the inner rotating shaft and the outer rotating bearing is equal to the height of the display layer 5 corresponding to the inner rotating shaft 4.

[0102] To enable the rotation of each display layer 5, a transmission gear located below the support bearing 41 is also installed on the mounting area of ​​each rotation shaft 4. The transmission gear is coaxially fixed with the corresponding rotation shaft 4. A gear driver 6 is fixed on the outer ring of each support bearing 41. The gear driver 6 serves as a power source and meshes with the transmission gear on the corresponding rotation shaft 4 to drive each rotation shaft 4 and the display layer 5 to rotate.

[0103] To ensure that the gear drive 6 does not rotate synchronously with the rotating shaft 4, a limiting slide rail 22 is arranged below the support base 3 along the vertical direction, passing through the fixed base 2. All gear drives 6 are fixed on the limiting slide rail 22 and can slide vertically along the limiting slide rail 22, thereby avoiding synchronous rotation with the rotating shaft 4.

[0104] S2. The apparent motion effect of the display device is represented by the control function G:

[0105] G∝αf(T j [f(Q) / f(R)]

[0106] α represents the degree of visual fatigue;

[0107] T j Display time intervals for actions;

[0108] Q represents the light source intensity of the display device;

[0109] R represents the spatial distance between the motion models on the display device;

[0110] f(T j ) is T j A monotonically increasing function;

[0111] f(Q) is a monotonically increasing function of G;

[0112] f(R) is a monotonically increasing function of R.

[0113] f(T)∝f(a,b,c);

[0114] f(Q) ∝ f(d,e,f);

[0115] f(R)∝f(g n );

[0116] Where 'a' represents the flicker frequency of the display device;

[0117] b represents the rotational speed of the display device;

[0118] c represents the rotation direction of the display device;

[0119] d represents the brightness of the display device;

[0120] e represents the ambient light intensity during the display process;

[0121] f represents the strobe color of the display device;

[0122] g n This refers to the circumferential distance between different display layers in the display device.

[0123] S3. Establish an objective function library, select the best function from the objective function library, and use the least squares method to obtain the optimal solution for each coefficient in the control function G;

[0124] The optimal function is any one of the following: linear fitting function, polynomial fitting function, first-order exponential decay fitting function, first-order exponential growth fitting function, Lorentz fitting function, and multi-peak fitting function.

[0125] To obtain the optimal solution for each coefficient in the control function G, the matrix method is used for least squares, and its matrix form is as follows:

[0126] f θ (x1,x2,...,x n )=θ0+θ1x1+...+θ n x n

[0127]

[0128] Where, x n For input variables;

[0129] y m The dependent variable;

[0130] m and n are the quantities of each variable.

[0131] θ n For parameters;

[0132] θ is (θ1, θ2, ..., θ n A matrix of )

[0133] X is (x1, x2, ..., x) n A matrix of )

[0134] Y is (y1, y2, ..., y m A matrix of )

[0135] T represents transpose;

[0136] The loss residual function J(θ) is obtained using the least squares method:

[0137]

[0138] Where (x,y) is a pair of observations;

[0139] tr represents the sum of the eigenvalues ​​of the matrix;

[0140] The minimum value of the residual function J(θ) is found by using the normal vector solution of linear equations or the gradient descent method, and the best fitting function with optimal parameters is obtained based on the specified sample data.

[0141] S4. Determine the range of rotational angular velocity of the control function G;

[0142] Since 2π = pn d ω、2πR=pn d v;

[0143] Where p is the visual persistence time, 0.1s≤p≤0.4s;

[0144] n d The number of motion models under flickering conditions;

[0145] ω is the angular velocity of the display layer in the display device, and π / pm d ≤ω≤2π, unit is rad / s;

[0146] m d Number of motion models;

[0147] R is the radius of the display layer in the display device;

[0148] υ represents the linear velocity of the moving model in the display device, in m / s;

[0149] The time interval between two consecutive flashes of the strobe light and the duration of the strobe light after it is lit are both t. The angle that the strobe light rotates through during time t is θ. p , 0.02°≤θ p ≤0.20°;

[0150] The relationship between t and angular velocity ω is: t = θ p / ω;

[0151] When the number of motion models under flickering conditions is 2, the rotational angular velocity of the display layer is the minimum, and the angular velocity value is:

[0152] ω min =2π / 2pm d =π / pm d rad / s;

[0153] When the number of motion models under flickering conditions is 1, the rotational angular velocity of the display layer is at its maximum, and the angular velocity value is:

[0154] ω max =2π / p = 20π rad / s;

[0155] Based on imaging principles, the range of the display layer's rotational angular velocity ω is as follows:

[0156] π / pm d ≤ω≤20πrad / s.

[0157] S5. Combine the control function G to establish an input parameter database, construct a machine learning control algorithm, and thus self-adjust the related parameters that affect the control function G.

[0158] The parameters in the input parameter database include visual fatigue level α, flicker frequency of the display device a, rotation speed of the display device b, rotation direction of the display device c, flicker intensity of the display device d, ambient light intensity during the display process e, flicker color of the display device f, and circumferential distance g between different display layers in the display device. n .

[0159] Participants input visual state data affecting the degree of visual fatigue α, including normal, myopic, hyperopic, and astigmatic states. The visual fatigue level α and the apparent motion effect range of G in the control function are set. The visual fatigue level α can be set from 0 to 1, where 0 represents the lowest level of fatigue and 1 represents the least level of fatigue. Image comparisons are provided for the numerical values. The apparent motion effect G can be set from 0 to 1, where 0 represents the worst effect and 1 represents the best effect. Comparison images are provided for selection.

[0160] Continuously increase the number of participants to increase the data in the input parameter database; achieve self-learning of the control machine learning control algorithm by self-adjusting the parameters of the control function G.

[0161] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0162] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0163] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0164] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0165] The above description has been given for illustrative and descriptive purposes. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A display control method for a multi-axis three-dimensional dynamic apparent motion phenomenon display device, characterized in that, Includes the following steps: S1. Construct a display device for three-dimensional dynamic apparent motion phenomena; The display device comprises the following components: The display layer (5) has a circular curved surface and at least two layers are arranged coaxially from the inside to the outside. Each display layer (5) presents a pattern effect after being illuminated by light. The number of rotating shafts (4) corresponds to the number of display layers (5), and each rotating shaft (4) is fixed coaxially with the corresponding display layer (5) from the inside to the outside. Each rotating shaft (4) is nested with each other and rotates coaxially. The drive unit drives each rotating axis (4) to rotate the corresponding display layer (5); Lifting section, lifts or lowers each display layer (5) so that each display layer (5) is at the same height or staggered in height; Each of the display layers (5) is arranged on a support base (3). A fixed base (2) is arranged parallel below the support base (3). From the inside out, the length of each rotating shaft (4) decreases sequentially, and each rotating shaft (4) passes through the support base (3) and extends towards the fixed base (2). The innermost rotating shaft (4) is installed on the fixed base (2) and rotates in cooperation with the fixed base (2). The lifting part is a hydraulic cylinder (21) arranged vertically on the fixed base (2). The driving end of the hydraulic cylinder (21) is connected to the support base (3). When the hydraulic cylinder (21) is extended to its limit, each display layer (5) is at the same height. S2. The apparent motion effect of the display device is represented by the control function G: G∝αf(T j )[f(Q) / f(R)] α represents the degree of visual fatigue; T j Display time intervals for actions; Q represents the light source intensity of the display device; R represents the spatial distance between the motion models on the display device; f(T j ) for T j A monotonically increasing function; f(Q) is a monotonically increasing function of G; f(R) is a monotonically increasing function of R; S3. Establish an objective function library, select the best function from the objective function library, and use the least squares method to obtain the optimal solution for each coefficient in the control function G; S4. Determine the range of rotational angular velocity of the control function G; S5. Combine the control function G to establish an input parameter database, construct a machine learning control algorithm, and thus self-adjust the related parameters that affect the control function G.

2. The display control method for a multi-axis three-dimensional dynamic apparent motion phenomenon display device according to claim 1, characterized in that, In step S3, when obtaining the optimal solution for each coefficient in the control function G, the matrix method is used to perform least squares, and its matrix form is as follows: Where, x n For input variables; y m The dependent variable; m and n are the quantities of each variable. θ n For parameters; θ for( θ 1, θ 2,…, θ n A matrix of ) X is (x1, x2, ..., x) n A matrix of ) Y is (y1, y2, ..., y m A matrix of ) T represents transpose; The loss residual function is obtained using the least squares method. J(θ n ) : in,( x,y ) represents a pair of observables; tr Represents the sum of the eigenvalues ​​of the matrix; Use the normal vector method to solve the linear equation system or the gradient descent method to find the residual function. J(θ) The minimum value of the function is obtained by finding the best fitting function based on the specified sample data.

3. The display control method for a multi-axis three-dimensional dynamic apparent motion phenomenon display device according to claim 1, characterized in that, f(T)∝f(a,b,c); f(Q) ∝ f(d, e, f); f(R)∝f(g n ); Where 'a' represents the flicker frequency of the display device; b represents the rotational speed of the display device; c represents the rotation direction of the display device; d represents the brightness of the display device; e represents the ambient light intensity during the display process; f represents the strobe color of the display device; g n This refers to the circumferential distance between different display layers in the display device.

4. The display control method for a multi-axis three-dimensional dynamic apparent motion phenomenon display device according to claim 1, characterized in that, In step S4, because 2π=pn d ω , 2πR=pn d v ; in, p The visual persistence time is 0.1 s ≤ p ≤ 0.4 s; n d This represents the number of motion models under flickering conditions. ω Let π / be the rotational angular velocity of the display layer in the display device, and π / pm d ≤ ω ≤2π, in rad / s; m d Number of motion models; R is the radius of the display layer in the display device; υ represents the linear velocity of the moving model in the display device, in m / s; The time interval between two consecutive flashes of the strobe light and the duration of the strobe light after it is lit are both... t In time t The angle through which the internal strobe light rotates is θ p , 0.02°≤ θ p ≤0.20°; t With angular velocity ω The relationship is: t = θ p / ω ; When the number of motion models under flickering conditions is 2, the rotational angular velocity of the display layer is the minimum, and the angular velocity value is: ω min =2π / 2 pm d =π / pm d rad / s; When the number of motion models under flickering conditions is 1, the rotational angular velocity of the display layer is at its maximum, and the angular velocity value is: ω max =2π / p =20π rad / s; Based on imaging principles, the rotational angular velocity of the display layer... ω Scope: p / pm d ≤ ω ≤20πrad / s.

5. A display control method for a multi-axis three-dimensional dynamic apparent motion phenomenon display device according to any one of claims 1 to 4, characterized in that, In step S3, the optimal function is any one of the following: linear fitting function, polynomial fitting function, first-order exponential decay fitting function, first-order exponential growth fitting function, Lorentz fitting function, and multi-peak fitting function.

6. The display control method for a multi-axis three-dimensional dynamic apparent motion phenomenon display device according to any one of claims 1 to 4, characterized in that, In step S5, the parameters input into the parameter database include visual fatigue level α, flicker frequency of the display device a, rotation speed of the display device b, rotation direction of the display device c, flicker intensity of the display device d, ambient light intensity during the display process e, flicker color of the display device f, and circumferential distance g between different display layers in the display device. n Participants input visual state data that influences the degree of visual fatigue α. The visual state data includes normal, myopic, hyperopic, and astigmatic states. The degree of visual fatigue α and the apparent motion effect range of G in the control function are set. The number of participants is continuously increased to increase the data in the input parameter database. By self-adjusting the parameters of the control function G, the self-learning of the machine learning control algorithm is achieved.

7. The display control method for a multi-axis three-dimensional dynamic apparent motion phenomenon display device according to claim 1, characterized in that, Two adjacent rotating shafts (4) are respectively the inner rotating shaft and the outer rotating shaft. The inner rotating shaft is fitted with a support bearing (41), and the support bearing (41) on the inner rotating shaft and the outer rotating shaft intersect in the vertical direction. When the hydraulic cylinder (21) is extended to the limit, the distance between the support bearing (41) on the inner rotating shaft and the outer rotating shaft is equal to the height of the display layer (5) corresponding to the inner rotating shaft.

8. The display control method for a multi-axis three-dimensional dynamic apparent motion phenomenon display device according to claim 7, characterized in that, The driving unit is a gear driver (6) corresponding to the number of rotating shafts (4). Each gear driver (6) is fixedly connected to the outer ring of the corresponding support bearing (41). Each rotating shaft (4) has a transmission gear below the support bearing (41) and the transmission gear meshes with the corresponding gear driver (6) for transmission. The support base (3) and / or the fixed base (2) are provided with a limiting component to restrict the gear driver (6) from rotating with the corresponding rotating shaft (4). The support base (3) is provided with a limiting slide rail (22) that passes through the fixed base (2) in the vertical direction. The limiting slide rail (22) is the limiting component. Each gear driver (6) is fixed on the limiting slide rail (22) and can slide vertically along the limiting slide rail (22).

9. The display control method for a multi-axis three-dimensional dynamic apparent motion phenomenon display device according to claim 1, characterized in that, The fixing seat (2) is coaxially fixed inside the cover (1), and the support seat (3) slides in the cover (1) along the vertical direction. The cover (1) is a glass cover. The top of the cover (1) is provided with a colored strobe band corresponding to the number and position of each display layer (5).

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