CN210364424U - Unmanned aerial vehicle shooting system with liquid crystal light valve - Google Patents
Unmanned aerial vehicle shooting system with liquid crystal light valve Download PDFInfo
- Publication number
- CN210364424U CN210364424U CN201920997036.XU CN201920997036U CN210364424U CN 210364424 U CN210364424 U CN 210364424U CN 201920997036 U CN201920997036 U CN 201920997036U CN 210364424 U CN210364424 U CN 210364424U
- Authority
- CN
- China
- Prior art keywords
- light valve
- liquid crystal
- crystal light
- aerial vehicle
- unmanned aerial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 72
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims abstract description 6
- 230000007306 turnover Effects 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 17
- 230000004044 response Effects 0.000 claims description 6
- 239000005262 ferroelectric liquid crystals (FLCs) Substances 0.000 claims description 4
- 230000003068 static effect Effects 0.000 abstract description 7
- 206010070834 Sensitisation Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008313 sensitization Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
The utility model provides an unmanned aerial vehicle shooting system with liquid crystal light valve, including cloud platform, shooting device, liquid crystal light valve, light valve control unit, mobile device, treater; the liquid crystal light valve is movably arranged right in front of the shooting device through the moving device; the mobile device drives the liquid crystal light valve to move to the position right in front of the shooting device and/or move away from the position in front of the shooting device according to an external control instruction; the light valve control unit is coupled with the liquid crystal light valve, and controls the exposure time of the photosensitive array of the shooting device by controlling the transmission and blocking states of the liquid crystal light valve. The utility model discloses can be at the faster or shoot object moving speed when very fast of unmanned aerial vehicle flying speed, through installing the liquid crystal light valve before shooting device camera lens, control the exposure time of the photosensitive array of shooting device reduces the image distortion, when unmanned aerial vehicle flying speed is slower, and when shooing static image, moves away the liquid crystal light valve, reduces unmanned aerial vehicle power consumption, prolongs its duration.
Description
Technical Field
The utility model relates to a liquid crystal light valve technical field particularly relates to an unmanned aerial vehicle shooting system with liquid crystal light valve.
Background
With the progress of the unmanned aerial vehicle technology, the flying speed of the unmanned aerial vehicle is faster and faster, and when a shooting device carried by the unmanned aerial vehicle acquires dynamic images for a high-speed moving target, due to the scanning time difference of the photosensitive exposure array and the continuous exposure time, the read data delay causes image distortion, and the distortion causes the distortion of the images, so that the image shooting effect is not ideal, such as the phenomena of image blurring or motion tailing and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an unmanned aerial vehicle shooting system with liquid crystal light valve, when unmanned aerial vehicle flying speed is very fast or shoot the object moving speed very fast, through installing the liquid crystal light valve before the shooting device camera lens, control the exposure time of the sensitization array of shooting device reduces the image distortion, when unmanned aerial vehicle flying speed is slower, and when shooing static image, if hang and stop, moves away the liquid crystal light valve, reduces unmanned aerial vehicle power consumption, prolongs its duration.
In order to achieve the above object, combine fig. 1, the utility model provides an unmanned aerial vehicle shooting system with liquid crystal light valve, unmanned aerial vehicle shooting system installs on the unmanned aerial vehicle body, unmanned aerial vehicle shooting system includes the cloud platform, shoots device, liquid crystal light valve, light valve the control unit, mobile device, treater.
The processor is connected with the control device of the unmanned aerial vehicle, and the real-time flight speed of the unmanned aerial vehicle is acquired from the control device of the unmanned aerial vehicle.
The shooting device is installed in unmanned aerial vehicle body below through the cloud platform, shoots the video image in order to shoot the appointed area according to the outside.
The processor is connected with the holder, and is used for adjusting the working posture of the holder according to an external control instruction so as to adjust the shooting angle of the shooting device.
The liquid crystal light valve is movably arranged right in front of the shooting device through the moving device.
The mobile device drives the liquid crystal light valve to move to the position right in front of the shooting device and/or move away from the position in front of the shooting device according to an external control instruction.
The light valve control unit is coupled with the liquid crystal light valve, and controls the exposure time of the photosensitive array of the shooting device by controlling the transmission and blocking states of the liquid crystal light valve.
The processor is configured to send a first motion instruction to the mobile device in response to the received real-time flight speed of the unmanned aerial vehicle being greater than or equal to a first preset flight speed threshold value, so as to drive the liquid crystal light valve to move to the position right in front of the shooting device.
The processor is configured to send a second motion instruction to the mobile device in response to the received real-time flight speed of the unmanned aerial vehicle being less than or equal to a second preset flight speed threshold value, so as to drive the liquid crystal light valve to move away from the front position of the shooting device.
When unmanned aerial vehicle flying speed is very fast or shoot the object translation rate very fast, because unmanned aerial vehicle's high-speed motion, especially when shooing the object that is in high-speed motion equally, the picture blur or motion tailing phenomenon appear easily in the shooting image, moves the liquid crystal light valve to shooting device camera lens dead ahead this moment, controls through the transmission of control liquid crystal light valve and the exposure time of the sensitization array of shooting device to obtain the shooting image of undistorted.
When unmanned aerial vehicle flying speed is slower, and shoot static image, if hang when stopping, especially when the moving speed of shooing the object is slower, adopt the image that the preferred effect can be shot to the shooting device, move away the liquid crystal light valve from shooting device camera lens the place ahead position this moment, only adopt the shooting device to shoot to reduce unmanned aerial vehicle's whole consumption, prolong its time of endurance.
When the unmanned aerial vehicle has a slow flying speed but needs to shoot high-speed moving objects, a user can still move the liquid crystal light valve to the position right in front of the lens of the shooting device, and the exposure time of the photosensitive array of the shooting device is controlled by controlling the transmission and blocking states of the liquid crystal light valve so as to obtain an undistorted shot image. The automatic control of the processor described above is only for two specific cases.
Above the technical scheme of the utility model, compare with current, its beneficial effect who is showing lies in:
1) when the unmanned aerial vehicle flying speed is fast or shooting object moving speed is fast, through installing the liquid crystal light valve before the shooting device camera lens, control the exposure time of the sensitization array of shooting device reduces image distortion.
2) When the unmanned aerial vehicle has a slow flying speed and shoots a static image, if the unmanned aerial vehicle is suspended, the liquid crystal light valve is moved away, so that the power consumption of the unmanned aerial vehicle is reduced, and the endurance time of the unmanned aerial vehicle is prolonged.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of the present disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the inventive subject matter of this disclosure.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the specific embodiments in accordance with the teachings of the present invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is the utility model discloses an unmanned aerial vehicle shooting system's with liquid crystal light valve structural schematic.
Fig. 2 is a schematic view of the operation mode of the turnover mechanism of the present invention.
Fig. 3 is a schematic view of the operation mode of the translation mechanism of the present invention.
Fig. 4 is a schematic view of the operation mode of the rotating mechanism of the present invention.
Detailed Description
For a better understanding of the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.
In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily defined to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any implementation. Additionally, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.
Combine fig. 1, the utility model provides an unmanned aerial vehicle shooting system with liquid crystal light valve 5, unmanned aerial vehicle shooting system installs on the unmanned aerial vehicle body, unmanned aerial vehicle shooting system includes cloud platform 2, shooting device 3, liquid crystal light valve 5, light valve the control unit 4, mobile device 6, treater 1.
The processor 1 is connected with the unmanned aerial vehicle control device 7, and acquires the real-time flight speed of the unmanned aerial vehicle from the unmanned aerial vehicle control device 7.
Shoot device 3 and install in unmanned aerial vehicle body below through cloud platform 2, shoot the video image of order in order to shoot the appointed area according to the outside.
The processor 1 is connected with the holder 2, and adjusts the working posture of the holder 2 according to an external control instruction so as to adjust the shooting angle of the shooting device 3.
The liquid crystal light valve 5 is movably arranged right in front of the shooting device 3 through a moving device 6.
The moving device 6 drives the liquid crystal light valve 5 to move to the position right in front of the photographing device 3 and/or move away from the position in front of the photographing device 3 according to an external control instruction.
The light valve control unit 4 is coupled to the liquid crystal light valve 5, and controls the exposure time of the photosensitive array of the camera 3 by controlling the transmission and blocking states of the liquid crystal light valve 5.
The processor 1 is configured to send a first motion instruction to the moving device 6 in response to the received real-time flight speed of the unmanned aerial vehicle being greater than or equal to a first preset flight speed threshold value, so as to drive the liquid crystal light valve 5 to move to a position right in front of the shooting device 3.
The processor 1 is configured to send a second motion instruction to the moving device 6 in response to the received real-time flight speed of the unmanned aerial vehicle being less than or equal to a second preset flight speed threshold value, so as to drive the liquid crystal light valve 5 to move away from the position in front of the shooting device 3.
Preferably, the liquid crystal light valve 5 comprises a ferroelectric liquid crystal modulation light valve, and the exposure time of the photosensitive array of the photographing device 3 is controlled by controlling the transmission and blocking states of the ferroelectric liquid crystal modulation light valve. For example, when the photographing device 3 employs a CMOS image sensor, the CMOS image sensor is used for static image capture, for example, in static scenes such as static human face scanning and recognition, fixed-point monitoring, and the like, an ideal depth-of-field image can be usually obtained, but when dynamic image acquisition is performed on a high-speed moving target, due to the scanning time difference of the CMOS photosensitive exposure array, the CMOS exposure time is continuous, so that the read data is delayed to cause image distortion, and the distortion causes image distortion, which causes undesirable image photographing effects, such as image blurring or motion tailing, and the like. At the moment, the ferroelectric liquid crystal modulation light valve is arranged right in front of the photosensitive array of the CMOS image sensor, so that the image distortion and the trailing phenomenon can be effectively reduced.
As for the moving device 6, the following three modes are proposed in the present application.
First mode
With reference to fig. 2, the moving means 6 comprise a turning mechanism.
The turnover mechanism comprises a first motor, a turnover shaft and a turnover part, the turnover shaft is fixed on the side edge of the lens of the shooting device 3, the liquid crystal light valve 5 is installed on the turnover part, and an output shaft of the first motor is connected with the turnover shaft.
The first motor adjusts the rotating speed of an output shaft of the first motor according to an external control instruction, and drives the turning shaft to rotate around the central line of the self shaft, so that the liquid crystal light valve 5 is turned forwards to the front of the shooting device 3 or turned backwards to be moved away from the front of the shooting device 3.
Preferably, the turning angle of the turning shaft is greater than or equal to 90 degrees and less than or equal to 270 degrees. More preferably, the turning angle of the turning shaft is 180 degrees.
In some examples, the moving device 6 further comprises a locking unit. The locking unit is arranged on the turnover shaft and used for limiting the turnover state of the turnover shaft and avoiding the problems of dislocation between the liquid crystal light valve 5 and the lens of the shooting device 3 and the like caused by vibration, loosening and the like.
Second mode
With reference to fig. 3, the moving means 6 comprise a translation mechanism.
The translation mechanism comprises a second motor and a linear guide rail.
The linear guide passes through the center of the lens of the photographing device 3 in the extending direction, and one end of the linear guide in the extending direction is arranged on the side edge of the lens of the photographing device 3.
The liquid crystal light valve 5 is movably arranged on the linear guide rail and moves along the linear guide rail.
The second electrode is connected with the liquid crystal light valve 5, and pushes the liquid crystal light valve 5 to move along the linear guide rail according to an external control instruction so as to move to the position right in front of the lens of the shooting device 3 or move away from the position in front of the lens of the shooting device 3.
Third mode
With reference to fig. 4, the moving means 6 comprise a rotating mechanism.
The rotating mechanism comprises a third motor, a rotating shaft and a rotating part, the rotating shaft is fixed on the side edge of the lens of the shooting device 3, the liquid crystal light valve 5 is installed on the rotating part, and an output shaft of the first motor is connected with the rotating shaft.
The third motor adjusts the rotating speed of an output shaft of the third motor according to an external control instruction, and drives the rotating shaft to rotate around the central line of the self shaft, so that the liquid crystal light valve 5 rotates forwards to the position right in front of the shooting device 3 or rotates backwards to move away from the position right in front of the shooting device 3.
Preferably, the rotation angle of the rotation mechanism is 180 degrees.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is intended to cover by those skilled in the art various modifications and adaptations of the invention without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the claims.
Claims (9)
1. An unmanned aerial vehicle shooting system with a liquid crystal light valve is arranged on an unmanned aerial vehicle body and is characterized by comprising a holder, a shooting device, the liquid crystal light valve, a light valve control unit, a moving device and a processor;
the processor is connected with a control device of the unmanned aerial vehicle, and acquires the real-time flight speed of the unmanned aerial vehicle from the control device of the unmanned aerial vehicle;
the shooting device is installed below the unmanned aerial vehicle body through a holder and is used for shooting a video image of a designated area according to an external shooting instruction;
the processor is connected with the holder and is used for adjusting the working posture of the holder according to an external control instruction;
the liquid crystal light valve is movably arranged right in front of the shooting device through the moving device;
the mobile device drives the liquid crystal light valve to move to the position right in front of the shooting device and/or move away from the position in front of the shooting device according to an external control instruction;
the light valve control unit is coupled with the liquid crystal light valve and controls the exposure time of the photosensitive array of the shooting device by controlling the transmission and blocking states of the liquid crystal light valve;
the processor is configured to send a first motion instruction to the mobile device to drive the liquid crystal light valve to move to the position right in front of the shooting device in response to the received real-time flight speed of the unmanned aerial vehicle being greater than or equal to a first preset flight speed threshold value;
the processor is configured to send a second motion instruction to the mobile device in response to the received real-time flight speed of the unmanned aerial vehicle being less than or equal to a second preset flight speed threshold value, so as to drive the liquid crystal light valve to move away from the front position of the shooting device.
2. The unmanned aerial vehicle photographing system with liquid crystal light valve of claim 1, wherein the liquid crystal light valve comprises a ferroelectric liquid crystal modulation light valve.
3. The unmanned aerial vehicle photographing system with liquid crystal light valve of claim 1, wherein the moving means comprises a tilting mechanism;
the turnover mechanism comprises a first motor, a turnover shaft and a turnover part, the turnover shaft is fixed on the side edge of the lens of the shooting device, the liquid crystal light valve is arranged on the turnover part, and an output shaft of the first motor is connected with the turnover shaft;
the first motor adjusts the rotating speed of an output shaft of the first motor according to an external control instruction, and drives the overturning shaft to rotate around the central line of the self shaft, so that the liquid crystal light valve is overturned forwards to the front of the shooting device or overturned backwards to be moved away from the front of the shooting device.
4. The unmanned aerial vehicle photographing system with the liquid crystal light valve of claim 3, wherein the turning angle of the turning shaft is greater than or equal to 90 degrees and less than or equal to 270 degrees.
5. The unmanned aerial vehicle photographing system with the liquid crystal light valve of claim 4, wherein the turning angle of the turning shaft is 180 degrees.
6. The unmanned aerial vehicle photographing system with liquid crystal light valve of claim 3, wherein the moving device further comprises a locking unit;
the locking unit is arranged on the turnover shaft and used for limiting the turnover state of the turnover shaft.
7. The unmanned aerial vehicle photographing system with liquid crystal light valve of claim 1, wherein the moving means comprises a translation mechanism;
the translation mechanism comprises a second motor and a linear guide rail;
the extension direction of the linear guide rail penetrates through the center of the lens of the shooting device, and one end of the linear guide rail along the extension direction is arranged on the side edge of the lens of the shooting device;
the liquid crystal light valve is movably arranged on the linear guide rail and moves along the linear guide rail;
the second motor is connected with the liquid crystal light valve and pushes the liquid crystal light valve to move along the linear guide rail according to an external control instruction.
8. The unmanned aerial vehicle photographing system with liquid crystal light valve of claim 1, wherein the moving means comprises a rotating mechanism;
the rotating mechanism comprises a third motor, a rotating shaft and a rotating part, the rotating shaft is fixed on the side edge of the lens of the shooting device, the liquid crystal light valve is arranged on the rotating part, and an output shaft of the first motor is connected with the rotating shaft;
the third motor adjusts the rotating speed of an output shaft of the third motor according to an external control instruction, and drives the rotating shaft to rotate around the central line of the self shaft, so that the liquid crystal light valve rotates forwards to the position right in front of the shooting device or rotates backwards to move away from the position right in front of the shooting device.
9. The unmanned aerial vehicle photographing system with liquid crystal light valve of claim 8, wherein the rotation angle of the rotation mechanism is 180 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920997036.XU CN210364424U (en) | 2019-06-28 | 2019-06-28 | Unmanned aerial vehicle shooting system with liquid crystal light valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920997036.XU CN210364424U (en) | 2019-06-28 | 2019-06-28 | Unmanned aerial vehicle shooting system with liquid crystal light valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210364424U true CN210364424U (en) | 2020-04-21 |
Family
ID=70268055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920997036.XU Expired - Fee Related CN210364424U (en) | 2019-06-28 | 2019-06-28 | Unmanned aerial vehicle shooting system with liquid crystal light valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210364424U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113994657A (en) * | 2020-10-20 | 2022-01-28 | 深圳市大疆创新科技有限公司 | Track delay shooting method and device, cradle head camera, unmanned aerial vehicle and handheld cradle head |
| CN115348394A (en) * | 2022-06-30 | 2022-11-15 | 浙江大华技术股份有限公司 | Exposure device, exposure control method, and photographing terminal |
-
2019
- 2019-06-28 CN CN201920997036.XU patent/CN210364424U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113994657A (en) * | 2020-10-20 | 2022-01-28 | 深圳市大疆创新科技有限公司 | Track delay shooting method and device, cradle head camera, unmanned aerial vehicle and handheld cradle head |
| WO2022082439A1 (en) * | 2020-10-20 | 2022-04-28 | 深圳市大疆创新科技有限公司 | Method and apparatus for time-lapse photographing of track, and gimbal camera, unmanned aerial vehicle, and handheld gimbal |
| CN113994657B (en) * | 2020-10-20 | 2023-10-17 | 深圳市大疆创新科技有限公司 | Track delay shooting method and device, cradle head camera, unmanned aerial vehicle and handheld cradle head |
| CN115348394A (en) * | 2022-06-30 | 2022-11-15 | 浙江大华技术股份有限公司 | Exposure device, exposure control method, and photographing terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210364424U (en) | Unmanned aerial vehicle shooting system with liquid crystal light valve | |
| CN108259703B (en) | Pan-tilt and pan-tilt tracking control method and device and pan-tilt | |
| US20220066439A1 (en) | Adaptive rate gain controller | |
| WO2021022580A1 (en) | Method and system for automatic tracking and photographing | |
| KR102397946B1 (en) | Photographing apparatus, unmanned vehicle having the photographing apparatus and attitude control method for the photographing apparatus | |
| US7747153B2 (en) | Camera having an image blur reducing function and rotation means | |
| US10887522B2 (en) | Imaging apparatus and control method | |
| WO2015060181A1 (en) | Blurless image capturing system | |
| US20210180743A1 (en) | Gimbal control method, gimbal control device, gimbal system, and unmanned aerial vehicle | |
| CN110771143B (en) | Control method of handheld cloud deck, handheld cloud deck and handheld equipment | |
| JP6056774B2 (en) | Imaging apparatus, imaging method, and program. | |
| US11920762B2 (en) | Method for controlling illuminating device, and apparatus, aircraft, and system thereof | |
| US20160156826A1 (en) | Image-capturing device and image-capturing method | |
| WO2021022579A1 (en) | Automatic surround photographing method and system for target | |
| JP2007041206A (en) | Photographing apparatus | |
| WO2019095139A1 (en) | Data processing method and device | |
| WO2020000130A1 (en) | Time-lapse photography device and time-lapse photography method | |
| CN104410795A (en) | Photographing function enhancer for smartphone | |
| JP6543876B2 (en) | CONTROL DEVICE, IMAGING SYSTEM, MOBILE OBJECT, CONTROL METHOD, AND PROGRAM | |
| US9300870B2 (en) | Imaging apparatus with time periods for charging a driving mechanism that drives a mechanical shutter | |
| US20160373656A1 (en) | Imaging apparatus | |
| KR101561535B1 (en) | Black Box Synchronized to Driver's view and Control Method thereof | |
| JP2004120075A (en) | Imaging apparatus | |
| US9106822B2 (en) | Image apparatus with motion control | |
| CN219389204U (en) | PTZ network camera structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200421 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |