CN109279037A - Move light barrier device in space - Google Patents
Move light barrier device in space Download PDFInfo
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- CN109279037A CN109279037A CN201811469367.2A CN201811469367A CN109279037A CN 109279037 A CN109279037 A CN 109279037A CN 201811469367 A CN201811469367 A CN 201811469367A CN 109279037 A CN109279037 A CN 109279037A
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- 230000004888 barrier function Effects 0.000 title claims abstract description 82
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000005286 illumination Methods 0.000 claims abstract 5
- 238000000034 method Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 4
- 230000001419 dependent effect Effects 0.000 claims description 3
- 241000375392 Tana Species 0.000 claims description 2
- 238000004364 calculation method Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims description 2
- 230000001351 cycling effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 241001424688 Enceliopsis Species 0.000 claims 2
- 230000001678 irradiating effect Effects 0.000 claims 2
- 240000007651 Rubus glaucus Species 0.000 claims 1
- 235000011034 Rubus glaucus Nutrition 0.000 claims 1
- 235000009122 Rubus idaeus Nutrition 0.000 claims 1
- 230000001133 acceleration Effects 0.000 claims 1
- 239000002775 capsule Substances 0.000 claims 1
- 238000013502 data validation Methods 0.000 claims 1
- 230000004807 localization Effects 0.000 claims 1
- 238000013507 mapping Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000007779 soft material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- 238000012216 screening Methods 0.000 description 4
- 241001269238 Data Species 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013499 data model Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D45/00—Aircraft indicators or protectors not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D47/00—Equipment not otherwise provided for
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The present invention relates to a kind of mobile light barrier device in space, the light that can be issued for user's shielding from the sun, fixed light source, mobile light source belongs to Internet of Things and service calculates crossing domain.It is characterised in that it includes one group of aircraft and being mounted on carry-on light barrier component.Wherein, the light barrier component is modeled including positioning, tracking, pose adjustment, user data, by means of Lifan, obstacle avoidance apparatus etc..The mobile light barrier device in the space can hover in the sky, so that light barrier material is formed certain structure by the flight attitude of varying flying unit group, to reach light barrier function.Movement can be followed according to user's movement.Especially used in the biggish open environment of intensity of illumination.
Description
Technical field
The present invention relates to light in a kind of mobile light barrier device in space more particularly to a kind of pair of open environment to shield
The aerial removable light barrier device covered, belongs to Internet of Things and service calculates crossing domain.
Background technique
Light barrier device is mentioned, can all expect parasols substantially, but parasols all needs parachute-opening, and be under
It up opens, very arduously；The support column of parasols occupies a large amount of space at the middle position of parasols, use, makes sunshade
The available useful space of umbrella tails off；Parasols also needs hand to mention always, very inconvenient.A kind of energy conservation is invented in Jiang Hua
Environmentally friendly parasols, it is intended to which the parasols of traditional umbrella bracing type is changed into the parasols of abutting joint formula, changes traditional umbrella
The parasols support column of bracing type is located at the situation of parasols middle position inconvenience, expands the inner space of parasols.It is right
It can only keep the sun off in existing most of solar protection devices, in extremely hot summer, due to direct sunlight, scorch very tight substantially
Weight, existing solar protection devices cannot take certain cooling to avoid heat measure.A kind of tour guide's solar protection devices, using upper layer parasols
Water is sprayed onto the umbrella body of upper layer by the design of body and lower layer's sunshade umbrella body by fountain head, sunshade and can not only can be reached
The effect avoided heat to cooling.For in the activity such as various business public goods, concert, traditional device for blocking light source is not good at screening
The mobile light source of cluster cluster is kept off, and there is the problems such as deposit is inconvenient.So how to design a kind of fly able shared screening
Male device will be solved to solve the problem of that problems as above become us currently.
Summary of the invention
It describes in view of the aforementioned technical background, really in the case where current Personalized demand is more, it is necessary to which one kind is provided
Effectively, the mobile light barrier device in the personalized space in the useful space.
A kind of mobile light barrier device in space can shield the sun, fixed light source, mobile light source for user and issue
Light, belongs to Internet of Things and service calculates crossing domain.A kind of mobile light barrier device in space, including one group of aircraft, with
And it is mounted on carry-on light barrier component, which is characterized in that the light barrier component includes light barrier material, determines
Hyte part follows component, pose adjustment component, user data modelling component, borrows Lifan component, avoidance component；Wherein, described
Positioning component include for position the position data collectings such as the GPS of target user, bluetooth, camera, infrared sensor module and
Computation module for accurate positionin；The component that follows includes the movement speed under the scenes such as user's walking, running, cycling
It calculates and predicts, and for positioning the device for obtaining data tracking from user；The pose adjustment component includes radiation direction
Differentiate component, wind-force size and discriminating direction component and the computing module for adjustment instruction；User data modelling component includes
User data acquisition module and user model, for the model structure user data according to foundation, consequently facilitating following component
Calculate height, size, the structure etc. of described device；It is described that Lifan component is borrowed to be used to by wind-force be described device in flight course
Middle offer power；Dependence between said modules are as follows: positioning component finds target user, and transfers data to tracking group
Part follows component to carry out following light barrier service to user dependent on the data of positioning component, and pose adjustment component depends on
User data modelling component, positioning component etc. adjust flight attitude.
Compared with traditional light barrier mode, the embodiment of the present invention by by light barrier device in the sky move,
It can follow, can realize personalized, fashion, feasible light barrier according to functions such as the automatic pose adjustments of radiation direction
Service, is a kind of light barrier embodiment that comparison is new, can be used in the fields such as shared economy, there is certain market value.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the mobile light barrier device in space provided in an embodiment of the present invention.
Fig. 2 is data flowing and the dependence between the component of the mobile light barrier device in space provided in an embodiment of the present invention
Relational graph
Fig. 3 is that the aircraft of the mobile light barrier device in space provided in an embodiment of the present invention and the setting of line screening arrangement position are tied
Structure schematic diagram.
Fig. 4 is the positioning component structural schematic diagram of the mobile light barrier device in space provided in an embodiment of the present invention.
Fig. 5 is that space provided in an embodiment of the present invention mobile light barrier device follows component structure diagram.
Fig. 6 is the pose adjustment assembly principle schematic diagram of the mobile light barrier device in space provided in an embodiment of the present invention.
Fig. 7 is the user data model schematic of the mobile light barrier device in space provided in an embodiment of the present invention.
Fig. 8 is the mobile light barrier device in space provided in an embodiment of the present invention by means of Lifan component structure diagram.
Fig. 9 is the avoidance component structure diagram of the mobile light barrier device in space provided in an embodiment of the present invention.
Figure 10 is the structure and measurement of the survey light supply apparatus of the mobile light barrier device in space provided in an embodiment of the present invention
Schematic illustration.
Main element symbol description
Aircraft 10
Light barrier component 20
Light 30
Positioning component 201
Follow component 204
Pose adjustment component 205
User data modelling component 206
By means of Lifan component 202
Avoidance component 203
Light barrier material 207
Rotor shield 208
Camera 2011
GPS, bluetooth, infrared lamp integration module 2012
The fixed part 2013 of positioning component and aircraft
For following the single-chip microcontroller 2041 of calculating
I/O interface 2042 for output order
Measure the device 2026 in wind-force and direction
Pressure sensor 2022
Class sail structure 2021
By means of Lifan component fixed link 2023
By means of Lifan direction, angle change support lever 2024
Steering engine 2027
By means of Lifan activity centre axis 2025
Radar 2031
Ultrasonic sensor 2032
Single-chip microcontroller 2033
Survey light supply apparatus 40
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
The mobile light barrier device in space that embodiment provides is described in detail below in conjunction with attached drawing.
Referring to Fig. 1, the embodiment of the present invention provides a kind of mobile light barrier device 100 in space, the mobile light in the space
Screening arrangement 100 includes one group of aircraft 10, and the light barrier component 20 being mounted on the aircraft 10.
The aircraft 10 is that unmanned plane, aerostatics etc. autonomous in air, controlled can take off, fly, hover or rise
The device of drop.
The aircraft 10 can be any one in unmanned plane, aerostatics.The unmanned plane can be common at present
Various remote control types, autonomous type unmanned plane.The aerostatics can use floatation suspension in air.Referring to Fig. 3, institute
The aircraft stated can be adjusted after in the fixed work in the either above or below of 20 main body of light barrier component, it is described
Lower section refers generally to the side close to ground, and top refers to the side relative to lower section.
Referring to Fig. 4, the light barrier component 20 is mounted on aircraft 10, can to light in space
30 carry out executing shielding to demands such as shielding intensity, areas based on user.The light 30 is fixed including solar source, ground
The light of the sendings such as light source, ground moving light source.The shielding can be the partial occlusion to the sun, artificial light, completely
One of block.The light barrier component 20 can be according under the structure setting of aircraft on board the aircraft side or aircraft
Side.The quantity of one group of aircraft can be one, be also possible to it is multiple.The light barrier device is mounted on aircraft
As long as not influencing flight on fixed structure, therefore, the light mobile shielding device can be set into various shielding constructions with
Meet the individual demand of user and the production requirement of producer.
The light barrier component 20 can use any can be shielded with the light for being irradiated to target user in space
The device covered.Preferably, the light barrier component 20 includes positioning component 201, follows component 204, pose adjustment component
205, user data modelling component 206, borrow Lifan component 202, avoidance component 203.
The positioning component 201 can be used to position approximate location, exact position and the position of itself of target user
It sets.Specifically, which can pass through closely positioning, the infrared indoor closely positioning, ultrasonic wave of GPS positioning, bluetooth
Be accurately positioned etc., WiFi positioning, one of positioning means positioning target user such as camera positioning distance substantially and accurately
Position, so that the device described in when user has light barrier demand can smoothly find user, and accurate position user provides
Light barrier service.The positioning component further includes being used to be merged and be transmitted to by the device that all kinds of location datas merge
Processor, processor receive after location data by some algorithms and then export some accurate coordinate datas.The positioning group
GPS module, bluetooth module in part 201, infrared module are integrated into a box 2012 and are mounted in fixed link.
Referring to Fig. 5, the location information for following component 204 that can be used to be transmitted according to the positioning component 201
With the feature calculation user movement speed of user and closely follow, be a computing module, it is only necessary to be fixed on close to positioning group
Part and the device for issuing aircraft instruction.The task of the component is in the height that a pose adjustment module 205 gives
User is closely followed on speed, position, irradiates user by big intensitv light in light range.
Referring to Fig. 6, the pose adjustment component 205 can be used to adjust the mobile light barrier device in the space
100 flying height, flight angle, structure change.Mainly according to from positioning component, avoidance component, user data modeling
The data of component etc. adjust its flight attitude by controlling aircraft flight device.
Referring to Fig. 7, the user data modelling component 206 can be used to from user's smartphone, Intelligent bracelet etc.
The user data obtained in internet-of-things terminal equipment is modeled, it is made to become have structure feature, consequently facilitating the number of users
User data more convenient to use is exported according to modelling component 206.For example, the offer of the data such as the height of user, age can be
User provides more personalized service.
Referring to Fig. 8, described borrows Lifan component 202 that can be used to by wind-force be the mobile light barrier dress in the space
It sets 100 and power is awing provided.Should borrow Lifan component 202 include class sail structure 2021, by means of Lifan component fixed link 2023, borrow
Lifan direction and angle change support lever 2024, borrow Lifan activity centre axis 2025 at steering engine 2027.The class sail structure 2021
The lightweight planar materials that is an expansible, can convert into can be any material and structure being used to by wind-force.It is described
Borrow Lifan component fixed link 2023 can be any to borrow Lifan to be fixed on the mobile light barrier dress in the space for described
Set the device on 100.The steering engine 2027 is the device of any offer rotational power.It is described to borrow Lifan activity centre axis
2025, which can be any one, can connect the device that can be rotated after a bar in peripheral direction.Lifan component 202 should be borrowed
By disposing sensor group calculating wind-force size and Orientation on it, and being arranged one according to wind intensity and direction can be most
The big class sail structure and fixed angle for utilizing wind-force.
Referring to Fig. 9, the avoidance component 203 can be used to prevent the mobile light barrier device 100 in the space with
Surrounding same type device, the collision of other objects.The avoidance component 203 includes radar 2031, ultrasonic sensor 2032, single-chip microcontroller
2033.The single-chip microcontroller 2033 can be any microcomputer for being capable of handling data.
Referring to Fig. 10, surveying light supply apparatus utilizes mobile two points on a straight line, acquisition light source is irradiated to the sky
Between mobile light barrier device 100 incident angle and moving distance, calculate the height y of light source, i.e.,
m/x=h/y
(x+n)/y=tana
Wherein, m be survey light supply apparatus first position light launching position arrive upright position distance, n be survey light source fill
The linear movement distance set, x are the distances for surveying point of first position of light supply apparatus to optical device to ground, are unknown, y
The height of plane where light source distance surveys light supply apparatus, be it is unknown, a is to survey light supply apparatus in second position and vertical side
To angle.
The mobile light barrier device in the space can pass through posture, structure, the speed of service in flight course and change to use
Family provides light barrier service.
The embodiment of the present invention by by light barrier component installation on board the aircraft, thus make light barrier not by user from
The limitation of figure part, can open wide or closed space in for sunlight, artificial or natural fixed light source, mobile light
The light that source issues is shielded, and is not limited by holding area, so as to provide service anywhere or anytime for user.
In addition, those skilled in the art can also propose to do other variations appropriate in thought in the present invention, still, these
Variation all should be within protection scope of the present invention.
Claims (6)
1. a kind of mobile light barrier device in space, including one group of aircraft, and it is mounted on carry-on light barrier group
Part, which is characterized in that the light barrier component includes light barrier material, positioning component, follows component, pose adjustment group
Part, borrows Lifan component, avoidance component at user data modelling component；Wherein, the positioning component includes using for positioning target
The position data collectings such as GPS, bluetooth, camera, the infrared sensor at family module and computation module for accurate positionin；It is described
Follow that component includes user's walking, running, the movement speed for cycling etc. under scenes calculates and prediction, and for fixed from user
Position obtains the device of data tracking；The pose adjustment component includes that radiation direction differentiates component, wind-force size and discriminating direction
Component and computing module for adjustment instruction；User data modelling component includes user data acquisition module and user model,
For the model structure user data according to foundation, consequently facilitating following the height of Assembly calculation described device, size, structure
Deng；It is described that Lifan component is borrowed to be used to provide power in flight course by wind-force for described device；Between said modules according to
The relationship of relying are as follows: positioning component finds target user, and transfers data to tracking component, follows component dependent on positioning component
Data carry out user to follow light barrier service, and pose adjustment component is dependent on user data modelling component, positioning component etc.
Adjust flight attitude；
It is characterized in that, a kind of mobile light barrier device in space can be used to shield the sun, fixed light source, mobile light
The light of the sendings such as source；The definition of three kinds of light sources is provided first, later, provides light barrier method respectively；
Solar source: the light issued from the sun；
Fixed light source: the constant light source of irradiating angle；
Mobile light source: other than sunlight, light source that irradiating angle changes frequent occurrence；
(1), for solar source, specific algorithm is as follows:
Input: sunray
Output: the mobile light barrier device flight attitude parameter in space
Step 1) is online or obtains current time offline；
The longitude and latitude data of step 2 acquisition current location；
Step 3) is based on step 1 and 2, calculates current sunray direction of illumination Angle, i.e. solar elevation:
// solar elevation calculates factor: Angle=Mapping (Time, Position (latitude, longitude))；
// specifically, sinAngle=sinhcosxcosy+sinxsiny
// wherein, h is with the hour angle under local sidereal time system, and x is current solar declination, and y is local latitude；
Step 4) obtains user demand and user model data；
Step 5) calculates one group of parameter (FactorOfFlyPose) for adjusting flight attitude；
(2), for fixed light source and mobile light source, realize that algorithm is as follows:
Input: the light of fixed light source irradiation
Output: the mobile light barrier device flight attitude parameter in space
Step 1) is comprising establishing coordinate system in the space of light source；
Three points acquire the relative position with light source to step 2 in the space where light source in real time, calculate light source position；
Step 3) is based on step 1 and 2, calculates current light source light direction of illumination；
Step 4) obtains user demand and user model data；
Step 5) calculates one group of parameter (FactorOfFlyPose) for adjusting flight attitude.
2. a kind of mobile light barrier device in the space according to claim, which is characterized in that one group of aircraft flies
Row pose adjustment data can derive from pose adjustment component, and when adjusting posture, aircraft rotor is destroyed in order to prevent, this
Invention gives several aircraft flight relative positions method for limiting and some safeguard procedures；
Measure one: fixed blade guard is installed in the aircraft rotor of each installation；
Measure two: it is connected between each aircraft using hard telescopic rod, the relative altitude of aircraft up and down is described
Telescopic rod limitation, the gradient of telescopic rod is limited to an angle (Angle0) according to rotor length, this angle exists
It is determined when specific production；The measure is suitable for aircraft and is mounted on two kinds of situations above and below light barrier component；
In the case that light barrier material between one: one group of aircraft of method is soft, it can not prevent from flying by measure
Collision between device rotor and other component, user, at this point, the present invention provides the collaboration flying method between multi-aircraft, with
Guarantee the safety of device itself, as follows:
Step 1) establishes the space coordinates that all aircraft are approved jointly；
Flight attitude of each aircraft of step 2 according to sensor data validation itself, flying height；
Flying height, the flight attitude of other aircraft are mutually detected, calculated in real time between step 3) aircraft；
Step 4) gives safe flight posture threshold value, safe flight relative altitude threshold value between an aircraft；
Step 5) makes the flight safety of its device itself by constantly calculating, adjusting.
3. the mobile light barrier device in a kind of space according to claim 1, which is characterized in that the light barrier
Component can be above one group of aircraft, can also be below one group of aircraft.
4. the mobile light barrier device in a kind of space according to claim 1, which is characterized in that the light barrier
Component includes light barrier material, positioning component, follows component, pose adjustment component, user data modelling component, borrows Lifan group
Part, avoidance component, wherein
Light barrier material:
Light barrier material can be fixed structure, and fixed structure can be umbrella, square shape etc.,
Light barrier material is also possible to soft, and the variation of structure is determined by the flight position of one group of aircraft；
It is scalable that light barrier material is also possible to frame hard, and inside is soft material, and shielding construction is flown by aircraft
Line position is set, rigid posts determine；
Positioning component:
Positioning component includes the processor for the sensor group of acquisition position data and for calculating target position, sensor group
Can be camera, bluetooth, infrared, GPS any feasible combination, processor can be Arduino, STM32, raspberry pie etc.,
In the positioning component, all components are all connected on an endways bar, camera in bottom, infrared, bluetooth, GPS,
Processor is integrated into a capsule in the top of camera, this root bar can be fixed on one of aircraft；Bluetooth
Module is used for the accurate positioning in real time of the short distance in the case where user uses Bluetooth of mobile phone, and camera is used for non-high accuracy positioning,
GPS is used to find target in a wide range of, infrared to be used to short distance high accuracy positioning；
The present invention proposes the light source localization method of two kinds of situations: (1) light source can use three-point fix in identified situation
Method, the face that spatial coordinates are formed using the photo of camera；(2) light source can not be in identified situation, and the present invention mentions
For a kind of radiation direction determining device, specifically, there is one arbitrarily can on the mobile light barrier device in the space
The shape for penetrating light, is being internally provided with light projection scope, then calculates light source height according to this device, i.e.,
m/x=h/y
(x+n)/y=tana
Wherein, m be survey light supply apparatus first position light launching position arrive upright position distance, n be survey light source fill
The linear movement distance set, x are the distances for surveying point of first position of light supply apparatus to optical device to ground, are unknown, y
The height of plane where light source distance surveys light supply apparatus, be it is unknown, a is to survey light supply apparatus in second position and vertical side
To angle；
Follow component:
Following component is mainly to execute aerial mission according to the data that positioning component transmits, and component is followed to need according to location data
Calculate following speed, follow adjustment in real time to target；Provide the input/output interface at aircraft end；
Pose adjustment component:
The data source of pose adjustment component is in attitude data sensor, for example, acceleration transducer, ultrasonic sensor, appearance
State sensor etc.；Height, flight angle, the degree of stability etc. of current flight device can be measured, pose adjustment can be according to user
Height, fat or thin adjustment flying height；
User data modelling component
User data modelling component is used to acquire the data of user, and by its structuring, so that the device be enable to fly
It provides in the services such as row height, flying speed prediction and targetedly services；For example, user data includes user's height, age etc.；
By means of Lifan component:
It is a flexible class sail device by means of Lifan component, mainly provides part by wind-force for the light barrier device
Power, it is characterised in that lighter weight, planar structure can be with direction of rotation, can also be with swing, by means of one on the component of Lifan
Multiple pressure sensors are deployed on a wind measuring device to be used to measure wind-force direction and size, are borrowed later according to mechanics principle setting
The angle of Lifan, swaying direction；
Avoidance component:
The flight of the mobile light barrier device in the space is likely encountered the air activity of various situations, disposes on avoidance component
The combinations such as ultrasonic sensor, infrared sensor, radar acquire barrier data, by analyzing and avoidance behaviour is made in processing
Make.
5. a kind of mobile light barrier device in space according to claim 1, which is characterized in that the aircraft includes
Any small-sized object that controlled can be taken off, fly, hover, going up and down such as unmanned plane.
6. the mobile light barrier device in a kind of space according to claim 1, which is characterized in that give a shielding
The selection algorithm of light intensity, as follows:
Input: the light of each road irradiation, multiple component sensors data
Output: it is capable of the attitude parameter of the mobile light barrier device in space of maximum intensity shielding light
Step 1) calculates the intensity of each light source irradiation target, direction, position；
Step 2 calculates area of each light source to target illumination, intensity；
Step 3) sets the attitude parameter of the weight computing described device of each light source according to intensity of illumination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811469367.2A CN109279037A (en) | 2018-12-03 | 2018-12-03 | Move light barrier device in space |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811469367.2A CN109279037A (en) | 2018-12-03 | 2018-12-03 | Move light barrier device in space |
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| CN109279037A true CN109279037A (en) | 2019-01-29 |
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ID=65174061
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811469367.2A Pending CN109279037A (en) | 2018-12-03 | 2018-12-03 | Move light barrier device in space |
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|---|---|---|---|---|
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