Method and device for movement of suspended object in three-dimensional space

Abstract

A method for movement of a suspended object in a three-dimensional space is disclosed. The method comprises the following steps: connecting two corresponding sides of an object to be suspended to one end of a rope, connecting the other end of the rope to a fixed point in the air, suspending the object to be suspended in the air, and adjusting the length of the rope at the two corresponding sides of the suspended object or the position of the fixed point to respectively control the x-axial positioning, y-axial positioning and z-axial positioning of the suspended object. The invention also discloses a device used for realizing the method of the invention. According to the invention, an occupied working space can be dynamically adjusted, so conflicts of the rope of the suspended object and other dynamic or static objects can be avoided to a great extend, and the stability of the suspended object is greatly improved, so accurate and real time control of the suspended object can be realized.

Description

technical field [0001] The invention relates to a method capable of moving a suspended object in three-dimensional space. [0002] The present invention also relates to a device for realizing the above method, and the working space occupied by the device can be dynamically adjusted. Background technique [0003] In sports events, film and television drama shooting or performances, it is often necessary to suspend objects such as people, props or cameras (hereinafter referred to as suspended objects) by ropes (such as steel wire ropes, static ropes, ... etc.) within a certain range. movement in three-dimensional space. The movement of the suspended object not only needs to be smooth, stable and real-time, but also the working space occupied by its device should be able to be quickly and dynamically adjusted in many occasions. [0004] The technologies most directly related to the present invention are: [0005] US2004 / 0206715A1 discloses a device for moving a suspended obj...

AI Technical Summary

Problems solved by technology

This not only means that the control delay is relatively large, but also the stability of the device will be relatively poor, making it difficult to meet the requirements of precise and real-time positioning

[0006] US3065861 discloses a device for the movement of a suspended object in three-dimensional space, which is mainly driven by ropes on two main slideways to move the suspended object through ropes. The ropes on both sides can slide freely, so when the block starts and stops quickly along the main slideway, the suspended object may swing back and forth in this direction, showing a shock phenomenon

The main limitation of this technology is that it is difficult to quickly adjust the size or position of the workspace occupied by the device as needed

This is because the ropes connecting the suspended object and the four fixed corners resemble an "X", no matter how the suspended object moves, these "X" crossed ropes are likely to become obstacles to other dynamic or static objects, which brings at least Two problems: 1. Even if the device is not working, if there are other suspended objects that need to move in this space, then the above-mentioned "X" shaped crossing rope is likely to affect the movement of the suspended object , causing other suspended object movement devices to fail to work; 2, and because the "X"-shaped cross rope is determined by four fixed corners, it is difficult to quickly and easily adjust its working space

Its main shortcomings are: 1. Due to the weight of the roller and the motor itself, the requirements for the load and rigidity of the slide rail are very high. Not only is it difficult to deploy, but it also means that the weight of the suspended object is limited

2. It is difficult for the operator to quickly judge the movements of the four rollers and make corresponding controls, especially when it is necessary to make the suspended objects move simultaneously in the three-dimensional direction

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