Method for controlling dynamic operation of stage turning plate equipment

Abstract

The invention discloses a control method for dynamic operation of stage turning plate equipment. The control method comprises the following steps: S1, establishing a turning plate motion range mathematical model for a turning plate participating in motion; s2, obtaining a relational expression between corresponding line segments in the model according to the operation angle of the turning plate, and obtaining a spatial distance range of dynamic operation of the turning plate according to the relational expression; s3, on the basis of the spatial distance range of dynamic operation of the turning plates, the spatial distance change range of each turning plate participating in movement is obtained; and S4, the maximum error value in the operation process is set for the turning plates, and the criterion that the multiple turning plates ascend and descend at the same time is that the position value of the operation distance of each turning plate at the same time is smaller than or equal to the maximum error value of the turning plates in the operation process. The stage equipment software control system has the advantages that the time cost of debugging by various manpower experience is reduced, the risk of equipment running collision in the performance process is reduced, and the safety and stability of the stage equipment software control system are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of stage performance mechanical equipment control, and particularly relates to a control method for the dynamic operation of a stage flap device. Background Art

[0002] In response to the direct impact of diverse cultures, outdoor shows, immersive performances, the combination of landscape and real scenes with technological interaction and plot interpretation, etc., not only give the audience different visual experiences, but also promote the development of local cultural and tourism industries and create considerable benefits.

[0003] Currently, in large-scale live performances, unique mechanical equipment is generally fabricated according to the performance scene, a matching control method is designed, and then with the help of real-scene interaction and panoramic audio-visual, the cultural heritage and local customs are perfectly presented. For a successful performance, it is necessary for all parts such as machinery, lighting, screen display, sound, special effects, etc. to cooperate safely to complete tasks, providing a dreamy scene for the audience while enhancing the artistic appeal. However, all these parts require relatively high and complex technical support and safety protection. Compared with equipment such as light, electricity, and sound, stage machinery bears a major responsibility in performance accidents. The safe operation of mechanical equipment is related to the personal safety of on-stage performers. Therefore, the dynamic operation of the equipment requires a more suitable control method, which is an important prerequisite for stage safety assurance.

[0004] In the existing method of using a flap, for the dynamic operation of the flap, the initial point position of its operation is measured and obtained based on the minimum angle, which is marked as A. Similarly, the measured value of the final point position when the flap is at the maximum angle is marked as C. Generally, these two points are the maximum operation range points of mechanical design and are easy to obtain. What is more difficult is that when the flap operates in the space outside the initial point and the final point, it needs to be obtained by engineering personnel through multiple manual measurements. For example, when the flap first reaches an angle of 10 degrees, the spatial operation distance is obtained; then when the flap operates to an angle of 20 degrees, the spatial distance that the flap needs to operate is obtained; and so on. The smaller the sampling angle, the more accurate the obtained spatial distance, and the set of spatial distances B corresponding to the intermediate angles of the average values B1, B2, B3 of the same angle obtained through multiple measurements is required. After obtaining the data points of the B set, the debugging personnel directly input them into the control system for scene application after performing simple data processing such as interpolation on the A, B set, and C. Although this method is simple, due to its neglect of the actual spatial changes and scene constraints, the positions of different flaps vary greatly, resulting in sudden equipment shutdown, making the performance effect unsatisfactory and posing a huge threat to personal safety during the performance. Moreover, the multiple manual measurements to obtain the average value also greatly waste human resources. Summary of the Invention

[0005] The purpose of the present invention is to provide a control method for the dynamic operation of a stage flap device, so as to solve the foregoing problems existing in the prior art.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A control method for the dynamic operation of a stage flap device includes the following steps.

[0008] S1. Establish a mathematical model of the flap movement range for the flaps participating in the movement, and the angle change range of each flap is the same; if the angle between the flap and the stage surface is θ, then the initial angle θ of the flap min corresponds to the spatial position AE, and the angle at which the flap rises is θ max corresponds to the spatial position BE when it does, and when the flap runs to the maximum angle θ max the relative position between the flap and the push rod at the position is BM; where AE represents the horizontal stage surface; point E is the connection point between the lower end of the flap and the stage surface; point B is the connection point between the upper end of the push rod and the flap, and point M is the connection point between the lower end of the push rod and the lifting track AF, and the lifting track AF extends vertically downward perpendicular to AE; BM intersects AE at point N.

[0009] S2. Draw an auxiliary line BP perpendicular to AE through point B, and intersect AE at point P; obtain the relationship between PE, BE, and BP according to the flap running angle θ, and obtain the spatial distance range of the flap's dynamic operation according to this relationship and the relationship between the distance AM from the lower end of the push rod to the stage surface and the auxiliary line BP.

[0010] S3. Based on the spatial distance range of the flap's dynamic operation, obtain the spatial distance change range of each flap participating in the movement.

[0011] S4. Set a maximum error value during the operation of the flap, and the criterion for multiple flaps to rise and fall together is that the position value of the distance traveled by each flap at the same time is less than or equal to the maximum error value during the operation of the flap.

[0012] Preferably, step S2 is specifically as follows.

[0013] S21. Draw an auxiliary line BP perpendicular to AE through point B, and intersect AE at point P; obtain the relationship between PE, BE, and BP according to the flap running angle θ

[0014] S22. The relationship between the distance AM from the lower end of the push rod to the stage surface and the auxiliary line BP Combined with the relationship in S21, the spatial distance range of the flap's dynamic operation is obtained as

[0015]

[0016] Preferably, step S3 is specifically as follows. When θ max , the maximum value AM of the dynamic change range of the flap can be obtained max ; when θ min , the minimum value AM of the flap can be obtained min ; then the spatial distance change range from the 1st flap to the Tth flap participating in the movement is AM 1 ∈(AM 1-min , AM 1-max ); AM 2 ∈(AM 2-min , AM 2-max ); …; AM T ∈(AM T-min , AM T-max ).

[0017] Preferably, step S4 is specifically as follows. When the flaps operate respectively, they have different angles and perform dynamic operation according to their maximum range. The operation rules follow the spatial distance change range of the corresponding flaps determined in step S3;

[0018] During the process of multiple flaps rising and falling together, their spatial positions need to be the same at the same time point. Therefore, it is necessary to impose a maximum error range constraint on the spatial movement distance of each flap, that is, at a certain moment t n , the criterion for the 1st flap to the Tth flap rising and falling together is that the position value of the distance traveled by each flap at the same time is less than or equal to the designed error value. It is expressed by the formula as δ is the maximum error value during the operation of T flaps.

[0019] The beneficial effects of the present invention are as follows: The method of the present invention utilizes the actual structure of the flap and the on-site space, combines its multi-angle transformation scenarios, and simultaneously analyzes its safe spatial position during application to ensure the stage shapes required during the performance. The realization of this technology enables the flap to switch different styling effects according to this mathematical model, reduces the time cost of various manual experience debugging, and at the same time, the safety space constraint imposed on it can reduce the risk of equipment operation collision during the performance, improving the safety and stability of the stage equipment software control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of a simplified mathematical model for analyzing the operation range of the stage flap in an embodiment of the present invention;

[0021] Figure 2 is a schematic diagram of six sets of stage flaps rising and falling together in an embodiment of the present invention;

[0022] Figure 3 is a schematic diagram of the lifting and lowering of the 1# 2# 3# flaps in an embodiment of the present invention;

[0023] Figure 4 It is a schematic diagram of the lifting of the 6# flap in the embodiment of the present invention;

[0024] Figure 5 It is a schematic diagram of the change amount of the spatial lifting distance when the flap angle changes in the embodiment of the present invention. Detailed implementation manners

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] In this embodiment, a control method for the dynamic operation of a stage flap device is provided. The stage flap movement specifically involves 6 flaps, and the dynamic operation distances of their spatial positions are shown in Figure 1 the simplified mathematical model shown.

[0027] In this embodiment, as shown in the mathematical model, the angle change ranges of each flap are the same. Assuming that the angles of all flaps are θ, the maximum range of its change is θ max , and the minimum is θ min . Then the initial angle θ min of the flap corresponds to the spatial position AE, and the spatial position corresponding to the raised angle θ max of the flap is BE. When the flap runs to the maximum angle θ max position, the relative position between the flap and the push rod is BM; where AE represents the horizontal stage surface; point E is the connection point between the lower end of the flap and the stage surface; point B is the connection point between the upper end of the push rod and the flap, point M is the connection point between the lower end of the push rod and the lifting track AF, and the lifting track AF extends vertically downward perpendicular to AE; BM intersects AE at point N. Then the safe space simulation distance of the dynamic operation of a certain flap specifically includes the following six steps:

[0028] 1. By obtaining Figure 1 the relationship between AM and the angle change θ in, the dynamic operation range of the flap in space can be obtained, which is also the flap shape that can be realized by the transformation of the angle θ. Therefore, it is necessary to make an auxiliary line BP perpendicular to AE. Therefore, draw an auxiliary line BP perpendicular to AE through point B and intersect AE at point P; obtain the relationship between PE, BE, and BP according to the flap operation angle θ, and obtain the spatial distance range of the dynamic operation of the flap according to this relationship and the relationship between the distance AM from the lower end of the push rod to the stage surface and the auxiliary line BP.

[0029] 2. As can be seen from the attached Figure 1 , the relationship among PE, BE, and BP can be expressed as: As can be seen from the figure, AP is the difference between AE and PE; BM is the sum of BN and MN; AN is the difference between AP and PN.

[0030] 3. Using the above relationships, the proportional relationship between AM and the position BP corresponding to the angle can be obtained as In summary, the spatial distance range for the dynamic operation of the flap is:

[0031] 4. When θ max , the maximum value AM of the dynamic change range of the flap can be obtained max ; when θ min , the minimum value AM of the flap can be obtained min ; then the spatial distance change AM 1 of the No. 1 flap ranges from AM 1 ∈ (AM 1-min , AM 1-max ); and so on, the spatial operating distances of the No. 2 to No. 6 flaps are: AM 2 ∈ (AM 2-min , AM 2-max ); AM 3 ∈ (AM 3-min , AM 3-max ); AM 4 ∈ (AM 4-min , AM 4-max ); AM 5 ∈ (AM 5-min , AM 5-max ); AM 6 ∈ (AM 6-min , AM 6-max ).

[0032] 5. As Figure 2 , Figure 3 , Figure 4 shown, when each flap operates independently, it has its own different angle and can operate dynamically according to its maximum range. Its operating rules follow the operating range described above from AM 1 to AM 6 . When the six sets of flaps move up and down together, they need to have the same spatial position at the same time point. Therefore, a maximum error range constraint needs to be imposed on the spatial movement distance of each flap. That is, when at a certain moment, the criterion for the No. 1 flap and the No. 6 flap to move up and down together is that the position value of the distance traveled by each flap at the same time is less than or equal to the designed error value. It is expressed by the formula: δ is the maximum error value during the operation of the six sets of flaps and is usually determined according to the design standard and the actual on-site situation.

[0033] 6. Figure 5For a certain flap at the maximum angle θ max = 58°, the minimum is θ min = 5°. When running, according to the above steps, the simulation distance of the safe space for the dynamic operation of the flap is obtained.

[0034] By adopting the above technical solutions disclosed in the present invention, the following beneficial effects are obtained:

[0035] The present invention provides a control method for the dynamic operation of a stage flap device. The method of the present invention utilizes the actual structure of the flap and the on-site space, combines its multi-angle transformation scenarios, and simultaneously analyzes the safe space position in the application process to ensure the stage shapes that need to be achieved during the performance. The implementation of this technology enables the flap to switch different styling effects according to this mathematical model, reduces the time cost of various manual empirical debugging, and at the same time, the safety space constraint imposed on it can reduce the risk of equipment operation collision during the performance, and improves the safety and stability of the stage equipment software control system.

[0036] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A control method for dynamic operation of stage flap equipment, characterized in that: The following steps are included: S1. Establish a mathematical model of the flap motion range for the flaps involved in the motion. The angle variation range of each flap is consistent. The angle between the flap and the stage surface is θ, and the initial angle of the flap is θ. min The corresponding spatial position is AE, and the angle of the flap is θ max The corresponding spatial position is BE, and the flap moves to the maximum angle θ max The relative position of the flap and the push rod is BM; AE represents the horizontal stage surface; point E is the connection point between the lower end of the flap and the stage surface; point B is the connection point between the upper end of the push rod and the flap; point M is the connection point between the lower end of the push rod and the lifting track AF, and the lifting track AF extends vertically downward perpendicular to AE; BM intersects AE at point N; S2. Draw an auxiliary line BP perpendicular to AE through point B, intersecting AE at point P; obtain the relationship between PE, BE, and BP according to the flap operation angle θ, and obtain the spatial distance range of the flap dynamic operation according to the relationship and the relationship between the distance AM from the lower end of the push rod to the stage surface and the auxiliary line BP; S3. Based on the spatial distance range of the dynamic operation of the flip board, obtain the spatial distance variation range of each flip board participating in the movement; S4. A maximum error value is set for the flap during operation. The criterion for the simultaneous rise and fall of multiple flaps is that the position value of the distance at which each flap runs at the same time is less than or equal to the maximum error value of the flap during operation.

2. The control method for dynamic operation of stage flap equipment according to claim 1, characterized in that: Step S2 specifically includes: S21. Draw an auxiliary line BP perpendicular to AE through point B, intersecting AE at point P; obtain the relationship between PE, BE, and BP according to the flap running angle θ S22. Relationship between the distance AM from the lower end of the push rod to the stage surface and the auxiliary line BP Combined with the relationship in S21, the spatial distance range of the dynamic operation of the flap is obtained as follows:

3. The control method for dynamic operation of stage flap equipment according to claim 2 is characterized in that: Step S3 specifically includes: when θ max When the maximum dynamic range of the flap can be obtained, AM max ; When θ min When the minimum value of the flap AM can be obtained min ; Then the spatial distance between the flap No. 1 and the flap No. T participating in the movement varies as AM1∈(AM 1-min , A.M. 1-max );AM2∈(AM 2-min , A.M. 2-max );…;AM T ∈(AM T-min , A.M. T-max ).

4. The control method for dynamic operation of stage flap equipment according to claim 3 is characterized in that: Step S4 is specifically that when the flaps are operated, they have different angles and are dynamically operated according to their maximum ranges, and their operation rules follow the spatial distance variation range of the corresponding flaps determined in step S3; When multiple flip boards are raised and lowered at the same time, they need to be in the same spatial position at the same time point. Therefore, it is necessary to set a maximum error range constraint on the spatial movement distance of each flip board, that is, when at a certain time t n ,The principle for the No. 1 flap to the No. T flap to rise and fall at the same time is that the position value of the distance at which each flap moves at the same time is less than or equal to the designed error value, which can be expressed by the formula: δ is the maximum error value of T flaps during operation.

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