WO2021134541A1 - Intersecting multi-rotor display - Google Patents
Intersecting multi-rotor display Download PDFInfo
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- WO2021134541A1 WO2021134541A1 PCT/CN2019/130684 CN2019130684W WO2021134541A1 WO 2021134541 A1 WO2021134541 A1 WO 2021134541A1 CN 2019130684 W CN2019130684 W CN 2019130684W WO 2021134541 A1 WO2021134541 A1 WO 2021134541A1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F21/00—Mobile visual advertising
- G09F21/06—Mobile visual advertising by aeroplanes, airships, balloons, or kites
- G09F21/08—Mobile visual advertising by aeroplanes, airships, balloons, or kites the advertising matter being arranged on the aircraft
Definitions
- the invention relates to a cross-type multi-rotor display, in particular to a device that realizes aerial display by using the point light source embedded on the rotor to leave the visual remnants of human eyes.
- LED light sources are fixed or rotating.
- the latter uses the rotating LED point light source to leave the human eye's vision.
- the LED point light source moves to a specific position, it turns on or off, so as to achieve the equivalent of ordinary display pixel point lighting. Or turn off the effect.
- Japanese telecommunications operator NTT Docomo invented the world's first spherical display drone.
- the four-axis drone achieves high mobility through the spherical centered four-axis drone, and uses the rotating LED point light source to achieve the effect of aerial display on the human eye.
- And is planned to be used in sports events or high-tech concerts, and remind the crowd in emergencies. It is designed for high mobility and can be operated almost anywhere.
- battery life is a big obstacle.
- high energy density can be achieved through fuel, the problem is that drones are generally not allowed to fly in densely populated places. If fuel is used, it will be more dangerous.
- the principle of the UAV with a spherical display is only to use the four-axis UAV with the center of the sphere to move the traditional and fixed hoisting spherical LED display.
- the embodiment needs to solve the problem of the air flow generated by the rotating LED strip and the flying of the UAV.
- the live video is extremely noisy. At present, it is only 0.88 meters in diameter. If it is enlarged enough to impress the stadium with tens of thousands or even hundreds of thousands of people, the noise level will be close to that of a manned helicopter, which greatly reduces its practicality, let alone. The danger of an accident.
- the plane crashes over a dense crowd, causing a fire at the scene, causing the crowd to panic and large-scale stampede, and its harm is close to a terrorist attack. What's more, the drone itself may be hijacked and used by terrorists.
- the spherical display drone invented by NTT Docomo must solve the problem that the airflow generated when rotating the LED strip interferes with the rotor of the drone. Why waste the power and energy required to rotate the LED strip? It is conceivable that the point light source embedded on the rotor can be displayed in the air "by the way".
- wind turbines all kinds of power, unpowered, tethered aircraft or rotor kits (Gyrokite, rotor kit) that provide lift or thrust through the rotor, can use the point light source embedded on the rotor to realize the display in the air.
- embodiments of the present invention are mainly described around LED strips. However, embodiments of the present invention are not limited to LED strips. For example, other types of point light sources can also use the rotor display described below to achieve the function of air display.
- the spherical display drone invented by NTT Docomo a Japanese telecommunications operator, is difficult to achieve its anticipated goal of high mobility due to the current limitation of the energy density of the power battery.
- many real-world applications do not require mobility.
- high mobility must be of great significance, but the limitations of the existing technology hinder its commercial pace, not only battery life, noise level and flight control, but also anti-wireless attacks and hijacking. Major difficulties.
- the sphere shows the airflow generated when the drone rotates the LED strip, which will interfere with the drone's rotor.
- Rotating the LED strip is to use the visual residue of the human eye to form the image that needs to be displayed, but it is a waste of power and energy consumption.
- the inventor would think of using the rotation of the LED strip to provide lift or even thrust. It is a straightforward idea to embed a point light source into the rotor of a helicopter. However, since the helicopter's main rotor is close to horizontal rotation, only the vicinity directly below it can have a good viewing effect. And this is not in line with human observation habits-you need to keep your neck up...
- Helicopters can be divided into single-rotor helicopters, double-rotor helicopters, and multi-rotor helicopters.
- the single-rotor helicopter is the most common helicopter, and the representative of the multi-rotor helicopter is the most common four-axis (quad-rotor) UAV.
- Double-rotor helicopters are divided into the following types according to the rotor layout:
- ⁇ Tandem type The two rotors are arranged longitudinally, such as Boeing's Chinook CH-47
- ⁇ Horizontal type The two rotors are arranged horizontally on the left and right, and the rotor shafts are far apart
- ⁇ Cross type The two rotors are arranged horizontally on the left and right, and the rotor shafts are closely spaced
- ⁇ Coaxial Two rotors are arranged up and down left and right, such as ka-50 of Kamov Design Bureau
- dual-rotor helicopters both counteract the anti-torque generated by each rotor by rotating the two rotors in opposite directions.
- ⁇ Lifting Just increase/decrease the rotor speed, or tilt the rotor shaft closer to vertical/horizontal
- ⁇ Rotation adjust the speed of a part of the rotor to change the state where the anti-torque cancels each other out
- This kind of cross-type multi-rotor display specially designed for aerial display has a large height because the rotor shaft is close to the horizontal.
- the following types of landing gear need to be considered:
Abstract
An intersecting multi-rotor display, in which the persistence of vision in the eye from point light sources embedded on rotors is used to achieve a function of display in the sky.
Description
本发明涉及交叉式多旋翼显示器，具体涉及一种通过利用内嵌在旋翼上的点光源对人眼的视觉残留，实现空中展示的装置。The invention relates to a cross-type multi-rotor display, in particular to a device that realizes aerial display by using the point light source embedded on the rotor to leave the visual remnants of human eyes.
市面上有一些球形LED显示器，通过支架或悬索固定于室内或室外，以展示地球等图像。其中的LED光源有固定的，也有旋转的，后者利用旋转的LED点光源对人眼的视觉残留，当LED点光源移动到特定位置点亮或关闭，从而实现相当于普通显示器像素点点亮或关闭的效果。There are some spherical LED displays on the market, which are fixed indoors or outdoors through brackets or suspension cables to display images of the earth. Among them, the LED light source is fixed or rotating. The latter uses the rotating LED point light source to leave the human eye's vision. When the LED point light source moves to a specific position, it turns on or off, so as to achieve the equivalent of ordinary display pixel point lighting. Or turn off the effect.
日本的电信运营商NTT Docomo发明了世界上第一种球形显示无人机，通过球心的四轴无人机实现高机动，利用旋转的LED点光源对人眼的视觉残留实现空中展示的效果，并计划使用于体育赛事或者高科技演唱会，及紧急情况下对人群进行提醒。其设计是为了高度机动性，在几乎任何地方进行操作，然而，当前技术下，电池的续航是很大的障碍。虽然可以通过燃油的方法实现高能量密度，问题是在人流密集的地方，无人机一般都不允许飞行，如果使用燃油，会更加危险。Japanese telecommunications operator NTT Docomo invented the world's first spherical display drone. The four-axis drone achieves high mobility through the spherical centered four-axis drone, and uses the rotating LED point light source to achieve the effect of aerial display on the human eye. , And is planned to be used in sports events or high-tech concerts, and remind the crowd in emergencies. It is designed for high mobility and can be operated almost anywhere. However, with current technology, battery life is a big obstacle. Although high energy density can be achieved through fuel, the problem is that drones are generally not allowed to fly in densely populated places. If fuel is used, it will be more dangerous.
此外，球形显示的无人机原理只是利用球心的四轴无人机让传统的、固定的吊装球形LED显示器动起来，其实施例需要解决旋转的LED条带产生的气流对无人机飞行的干扰，尽量减少结构重量等技术难题，其现场视频有极大噪音。目前还只是0.88米直径，如果放大到足以令体育场几万乃至几十万人都可以留下深刻印象的程度，其噪音水平恐怕将接近有人操控的直升机，极大降低了其实用性，更遑论发生事故的危险性。如果使用燃油，在密集人群上空坠机，导致现场大火，引起人群恐慌、大规模踩踏，其危害直逼恐怖袭击。更何况无人机本身就有被***劫持和利用的可能。In addition, the principle of the UAV with a spherical display is only to use the four-axis UAV with the center of the sphere to move the traditional and fixed hoisting spherical LED display. The embodiment needs to solve the problem of the air flow generated by the rotating LED strip and the flying of the UAV. To minimize the structural weight and other technical problems, the live video is extremely noisy. At present, it is only 0.88 meters in diameter. If it is enlarged enough to impress the stadium with tens of thousands or even hundreds of thousands of people, the noise level will be close to that of a manned helicopter, which greatly reduces its practicality, let alone. The danger of an accident. If fuel is used, the plane crashes over a dense crowd, causing a fire at the scene, causing the crowd to panic and large-scale stampede, and its harm is close to a terrorist attack. What's more, the drone itself may be hijacked and used by terrorists.
发明概述Summary of the invention
NTT Docomo发明的球形显示无人机，必须解决旋转LED条带时产生的气流干扰无人机的旋翼，为什么要浪费旋转LED条带需要的动力和能耗呢？可以设想通过内嵌在旋翼上的点光源，“顺便”实现空中展示。比如，风力发电机，各种通过旋翼提供升力或推力的动力、无动力、系留的航空器或旋翼风筝(Gyrokite,rotor kite)，都可以利用内嵌在旋翼上的点光源，实现空中展示的功能。The spherical display drone invented by NTT Docomo must solve the problem that the airflow generated when rotating the LED strip interferes with the rotor of the drone. Why waste the power and energy required to rotate the LED strip? It is conceivable that the point light source embedded on the rotor can be displayed in the air "by the way". For example, wind turbines, all kinds of power, unpowered, tethered aircraft or rotor kits (Gyrokite, rotor kit) that provide lift or thrust through the rotor, can use the point light source embedded on the rotor to realize the display in the air. Features.
此外，除了利用现有的风机、各种旋翼机，也可设计专门用于空中展示的航空器，具有大直径水平轴(或接近水平)，(相对)低转速旋翼机。In addition, in addition to using existing wind turbines and various rotorcraft, it is also possible to design aircraft specifically for aerial display with a large-diameter horizontal axis (or close to horizontal) and (relatively) low-speed rotorcraft.
然而，应当理解，本发明内容可能不包含本发明的所有方面和实施例该发明内容并不意味着以任何方式进行限制或限制，并且本文公开的本发明将被下列之一理解：本领域普通技术人员包括对其的明显改进和修改。However, it should be understood that the content of the present invention may not include all aspects and embodiments of the present invention. The content of the present invention is not meant to be restricted or restricted in any way, and the present invention disclosed herein will be understood by one of the following: The technical staff includes obvious improvements and modifications.
现在将在下文中更充分地描述本发明。然而，本发明可以以许多不同的形式实施，并且不应被解释为限于本文所阐述的实施例。但愿，提供这些实施例使得本公开将是彻底和完整的，并且将向本领域技术人员充分地传达本发明的范围。The present invention will now be described more fully hereinafter. However, the present invention can be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. Hopefully, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.
应当理解，在不脱离所附权利要求书中阐述的精神和范围的情况下，可以对元件的功能和布置进行各种改变。因此，实施例是本发明的示例或实现，而不是唯一的实现。各种出现“一个实施例”，“实施例”或“一些实施例”不一定都指代相同的实施例。虽然可以在单个实施例的上下文中描述本发明的各种特征，但是特征也可以单独地或以任何合适的组合提供。相反的，尽管为了清楚起见，本文中可以在单独的实施例的上下文中描述本发明，但是本发明也可以在单个实施例或实施例的任何组合中实现。It should be understood that various changes can be made to the function and arrangement of elements without departing from the spirit and scope set forth in the appended claims. Therefore, the embodiments are examples or implementations of the present invention, rather than the only implementations. The various appearances of "one embodiment," "an embodiment," or "some embodiments" do not necessarily all refer to the same embodiment. Although various features of the invention may be described in the context of a single embodiment, the features may also be provided individually or in any suitable combination. Conversely, although the invention may be described herein in the context of separate embodiments for the sake of clarity, the invention may also be implemented in a single embodiment or any combination of embodiments.
除非另有定义，本文使用的所有术语(包括技术和科学术语)具有与本发明所属领域的普通技术人员通常理解的相同的含义。将进一步理解的是，诸如在通常使用的字典中定义的那些术语应当被解释为具有与它们在相关技术和本公开的上下文中的含义一致的含义，并且将不被解释为理想化的或过度正式的意义，除非本文中明确地这样定义。Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of related technologies and the present disclosure, and will not be interpreted as idealized or excessive The formal meaning, unless explicitly defined as such in this article.
参考术语如“左”、“右”、“顶”、“底”、“前”和“后”旨在用于在相对于描绘实施例中的具体特征，结构或元件的取向本发明的实施例。显然，关于设备的实际使用的这种方向性术语没有特定的含义，因为设备可以由用户或多个用户在多个方向中使用。Reference terms such as "left", "right", "top", "bottom", "front", and "rear" are intended to be used in the implementation of the present invention in relation to the specific features, structures, or orientations of the depicted embodiments example. Obviously, such directional terms regarding the actual use of the device have no specific meaning, because the device can be used by a user or multiple users in multiple directions.
本发明实施例主要围绕LED条带进行描述。然而，本发明实施例并不限于LED条带。例如，其它类型的点光源，也可以利用下面描述的旋翼显示器，实现空中展示的功能。The embodiments of the present invention are mainly described around LED strips. However, embodiments of the present invention are not limited to LED strips. For example, other types of point light sources can also use the rotor display described below to achieve the function of air display.
日本的电信运营商NTT Docomo发明的球形显示无人机，由于目前动力电池能量密度的局限，而难以实现其预想的高机动的目标。另外一方面，很多现实应用并不需要机动性。当然，如果不需要付出代价，高机动性肯定有重大意义，只不过现有技术的局限性，阻碍了其商用的步伐，不止电池续航，噪音水平和飞行控制，乃至防无线攻击和劫持都是重大困难。The spherical display drone invented by NTT Docomo, a Japanese telecommunications operator, is difficult to achieve its anticipated goal of high mobility due to the current limitation of the energy density of the power battery. On the other hand, many real-world applications do not require mobility. Of course, if you don’t need to pay a price, high mobility must be of great significance, but the limitations of the existing technology hinder its commercial pace, not only battery life, noise level and flight control, but also anti-wireless attacks and hijacking. Major difficulties.
球形显示无人机旋转LED条带时产生的气流，会干扰无人机的旋翼。旋转LED条带是为了利用人眼的视觉残留形成需要显示的影象，却是一种对动力、能耗的浪费。自然的，发明人会想到利用LED条带的旋转来提供升力甚至推力。将点光源嵌入到直升机的旋翼，是直接的想法。然而，由于直升机主旋翼接近于水平旋转，只有其正下方附近才有好的观看效果。而且这不符合人类的观察习惯——需要一直仰着脖子……The sphere shows the airflow generated when the drone rotates the LED strip, which will interfere with the drone's rotor. Rotating the LED strip is to use the visual residue of the human eye to form the image that needs to be displayed, but it is a waste of power and energy consumption. Naturally, the inventor would think of using the rotation of the LED strip to provide lift or even thrust. It is a straightforward idea to embed a point light source into the rotor of a helicopter. However, since the helicopter's main rotor is close to horizontal rotation, only the vicinity directly below it can have a good viewing effect. And this is not in line with human observation habits-you need to keep your neck up...
直升机可分为单旋翼直升机、双旋翼直升机、多旋翼直升机。单旋翼直升机就是最常见的直升机，多旋翼直升机的代表就是最常见的四轴(四旋翼)无人机。双旋翼直升机按旋翼布局，分为以下几种：Helicopters can be divided into single-rotor helicopters, double-rotor helicopters, and multi-rotor helicopters. The single-rotor helicopter is the most common helicopter, and the representative of the multi-rotor helicopter is the most common four-axis (quad-rotor) UAV. Double-rotor helicopters are divided into the following types according to the rotor layout:
·纵列式：俩旋翼前后纵向排列，例如波音的“支奴干”CH-47·Tandem type: The two rotors are arranged longitudinally, such as Boeing's Chinook CH-47
·横列式：俩旋翼左右横向排列，旋翼轴间隔远·Horizontal type: The two rotors are arranged horizontally on the left and right, and the rotor shafts are far apart
·交叉式：俩旋翼左右横向排列，旋翼轴间隔近·Cross type: The two rotors are arranged horizontally on the left and right, and the rotor shafts are closely spaced
·共轴式：俩旋翼左右上下排列，例如卡莫夫设计局的ka-50·Coaxial: Two rotors are arranged up and down left and right, such as ka-50 of Kamov Design Bureau
与单旋翼直升机通过尾桨，或喷气抵消旋翼产生的反扭矩不同，双旋翼直升机都通过以相反方向旋转俩旋翼以相互抵消每个旋翼产生的反扭矩。Unlike single-rotor helicopters that use the tail rotor or jets to offset the anti-torque generated by the rotors, dual-rotor helicopters both counteract the anti-torque generated by each rotor by rotating the two rotors in opposite directions.
我们可以参考交叉式双旋翼直升机，但将其旋转轴从接近垂直改成接近水平，这样便可以拥有更大的侧面观测面积。但如果只有一对旋翼，只有两方向才有好的观看效果，可以将其改为2、3及更多对旋翼。其飞行控制可以这样做：We can refer to the crossed twin-rotor helicopter, but change its rotation axis from close to vertical to close to horizontal, so that it can have a larger side observation area. But if there is only a pair of rotors, only two directions can have a good viewing effect, you can change it to 2, 3 or more pairs of rotors. Its flight control can do this:
·升降：只要提高/降低旋翼转速，或倾转旋翼轴更接近垂直/水平· Lifting: Just increase/decrease the rotor speed, or tilt the rotor shaft closer to vertical/horizontal
·任意方向前进/倒退：提高/降低任意方向旋翼转速，或反向反操作·Forward/reverse in any direction: increase/decrease the rotation speed of the rotor in any direction, or reverse operation
·旋转：调整一部分旋翼的转速，改变其反扭矩相互抵消的状态·Rotation: adjust the speed of a part of the rotor to change the state where the anti-torque cancels each other out
这种专门设计用于空中展示的交叉式多旋翼显示器，因为旋翼轴接近于水平而具有很大的高度，还需要考虑以下几种形式的起落架：This kind of cross-type multi-rotor display specially designed for aerial display has a large height because the rotor shaft is close to the horizontal. The following types of landing gear need to be considered:
·降落时旋翼轴倾转到接近垂直，使用普通起落架即可，此方法需要严格控制交叉旋转的旋翼，避免相互碰撞，飞行控制的难度很高·When landing, the rotor shaft tilts to close to vertical, just use ordinary landing gear. This method requires strict control of cross-rotating rotors to avoid mutual collisions, and flight control is very difficult.
·使用很高的起落架，可通过伸缩减小飞行阻力，会增加起落架带来的结构重量·Using a very high landing gear, which can reduce the flight resistance through expansion and contraction, which will increase the weight of the structure
·将升力的方向从拉力改成推力，每对旋翼接近地面的部分之间的距离小于接近天空的部分之间的距离，从而为机身上方留出足够空间，以安装挂钩，使得交叉式多旋翼显示器可以挂在空中悬索下方的挂钩上，从而降低交叉式多旋翼显示器整体结构重量·Change the direction of lift from pulling force to thrust. The distance between the parts of each pair of rotors close to the ground is less than the distance between the parts close to the sky, so as to leave enough space above the fuselage to install the hooks, making the cross-type more The rotor display can be hung on the hook below the aerial suspension cable, thereby reducing the overall structural weight of the cross-type multi-rotor display
·通过设置旋翼框架，直接利用框架起飞、降落及停放·Through setting the rotor frame, directly use the frame to take off, land and park
以上描述仅是本发明的实施例，并不意在限制本发明的范围。根据本公开的权利要求书和说明书的各种变化和修改仍在所要求保护的发明的范围内。此外，每个实施例和权利要求书未必包含了所公开的所有优点或特可收紧机械夹性。此外，摘要和标题仅用于便于搜索专利文献,并且不旨在以任何方式限制所要求保护的发明的范围。The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Various changes and modifications according to the claims and specification of the present disclosure are still within the scope of the claimed invention. In addition, each embodiment and claims may not include all the disclosed advantages or special tightening mechanical clamping properties. In addition, the abstract and title are only used to facilitate searching of patent documents and are not intended to limit the scope of the claimed invention in any way.
Claims (11)
- 一种交叉式多旋翼显示器，包含了多个点光源、多个旋翼和一个机身，具有如下特征：每个所述旋翼含有一个或多个叶片；所述点光源内嵌到所述的叶片；所述点光源能根据指令，当所述旋翼转到特定位置时点亮或关闭，以利用人眼的视觉残留形成需要显示的影象。A cross-type multi-rotor display, including multiple point light sources, multiple rotors, and a fuselage, and has the following characteristics: each of the rotors contains one or more blades; the point light sources are embedded in the blades The point light source can be turned on or off when the rotor turns to a specific position according to instructions, so as to use the visual residue of the human eye to form an image that needs to be displayed.
- 如权利要求2所述的交叉式多旋翼显示器，具有如下特征：所述旋翼为偶数个；每两个所述旋翼组成一对，每对所述旋翼的旋转轴在水平面的投影，在相同直线内；每个所述旋翼的旋转轴接近水平，每对所述旋翼旋转方向相反，以相互抵消所述旋翼产生的反扭矩。The crossed multi-rotor display of claim 2 has the following characteristics: the number of rotors is an even number; every two of the rotors form a pair, and the projection of the rotation axis of each pair of the rotors on the horizontal plane is on the same straight line. Inside; the rotation axis of each rotor is close to horizontal, and the rotation direction of each pair of rotors is opposite to cancel the reaction torque generated by the rotors.
- 一种交叉式多旋翼显示器，包含了多个点光源、多个旋翼和一个机身，具有如下特征：每个所述旋翼含有一个或多个叶片；所述点光源内嵌到所述的叶片；所述点光源能根据指令，当所述旋翼转到特定位置时点亮或关闭，以利用人眼的视觉残留形成需要显示的影象。A cross-type multi-rotor display, which includes multiple point light sources, multiple rotors and a fuselage, and has the following characteristics: each of the rotors contains one or more blades; the point light sources are embedded in the blades The point light source can be turned on or off when the rotor turns to a specific position according to instructions, so as to use the visual residue of the human eye to form an image that needs to be displayed.
- 如权利要求3所述的交叉式多旋翼显示器，具有如下特征：所述旋翼为偶数个；每两个所述旋翼组成一对，每对所述旋翼的旋转轴在水平面的投影，在相同直线内；每个所述旋翼的旋转轴接近水平，每对所述旋翼旋转方向相反，以相互抵消所述旋翼产生的反扭矩。The crossed multi-rotor display of claim 3, which has the following characteristics: the number of rotors is an even number; every two of the rotors form a pair, and the projection of the rotation axis of each pair of the rotors on the horizontal plane is on the same straight line. Inside; the rotation axis of each rotor is close to horizontal, and the rotation direction of each pair of rotors is opposite to cancel the reaction torque generated by the rotors.
- 如权利要求3所述的交叉式多旋翼显示器，进一步包含：起落架，以支撑所述交叉式多旋翼显示器起飞和降落及停放。The crossed multi-rotor display of claim 3, further comprising: landing gear to support the crossed multi-rotor display to take off and land and park.
- 一种交叉式多旋翼显示器，包含了多个点光源、多个旋翼和一个机身，具有如下特征：每个所述旋翼含有一个或多个叶片；所述点光源内嵌到所述的叶片；所述点光源能根据指令，当所述旋翼转到特定位置时点亮或关闭，以利用人眼的视觉残留形成需要显示的影象。A cross-type multi-rotor display, including multiple point light sources, multiple rotors, and a fuselage, and has the following characteristics: each of the rotors contains one or more blades; the point light sources are embedded in the blades The point light source can be turned on or off when the rotor turns to a specific position according to instructions, so as to use the visual residue of the human eye to form an image that needs to be displayed.
- 如权利要求6所述的交叉式多旋翼显示器，具有如下特征：所述旋翼为偶数个；每两个所述旋翼组成一对，每对所述旋翼的旋转轴在水平面的投影，在相同直线内；每个所述旋翼的旋转轴接近水平，每对所述旋翼旋转方向相反，以相互抵消所述旋翼产生的反扭矩。The crossed multi-rotor display according to claim 6 has the following characteristics: the number of rotors is an even number; every two of the rotors form a pair, and the projection of the rotation axis of each pair of the rotors on the horizontal plane is on the same straight line. Inside; the rotation axis of each rotor is close to horizontal, and the rotation direction of each pair of rotors is opposite to cancel the reaction torque generated by the rotors.
- 如权利要求6所述的交叉式多旋翼显示器，进一步包含：旋翼外框架，以支撑所述交叉式多旋翼显示器起飞和降落及停放，并保护旋翼避免碰撞。The cross-type multi-rotor display of claim 6, further comprising: an outer rotor frame to support the take-off and landing and parking of the cross-type multi-rotor display, and to protect the rotor from collision.
- 一种交叉式多旋翼显示器，包含了多个点光源、多个旋翼和一个机身，具有如下特征：每个所述旋翼含有一个或多个叶片；所述点光源内嵌到所述的叶片；所述点光源能根据指令，当所述旋翼转到特定位置时点亮或关闭，以利用人眼的视觉残留形成需要显示的影象。A cross-type multi-rotor display, including multiple point light sources, multiple rotors, and a fuselage, and has the following characteristics: each of the rotors contains one or more blades; the point light sources are embedded in the blades The point light source can be turned on or off when the rotor turns to a specific position according to instructions, so as to use the visual residue of the human eye to form an image that needs to be displayed.
- 如权利要求9所述的交叉式多旋翼显示器，具有如下特征：所述旋翼为偶数个；每两个所述旋翼组成一对，每对所述旋翼的旋转轴在水平面的投影，在相同直线内；每个所述旋翼的旋转轴接近水平，每对所述旋翼旋转方向相反，以相互抵消所述旋翼产生的反扭矩。The crossed multi-rotor display according to claim 9 has the following characteristics: the number of rotors is an even number; every two of the rotors form a pair, and the projection of the rotation axis of each pair of the rotors on the horizontal plane is on the same straight line. Inside; the rotation axis of each rotor is close to horizontal, and the rotation direction of each pair of rotors is opposite to cancel the reaction torque generated by the rotors.
- 如权利要求9所述的交叉式多旋翼显示器，进一步包含：挂钩，所述挂钩安装于机身上方，以支撑所述交叉式多旋翼显示器起飞和降落及停放。降落时所述交叉式多旋翼显示器可以通过所述挂钩悬挂在空中悬索下方的挂钩上。9. The cross-type multi-rotor display of claim 9, further comprising: a hook installed above the fuselage to support the cross-type multi-rotor display to take off and land and park. When landing, the cross-type multi-rotor display can be hung on the hook below the aerial suspension cable through the hook.
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