CN106454211B - For spacecraft component surface separation, the vacuum high speed video system of expansion test - Google Patents
For spacecraft component surface separation, the vacuum high speed video system of expansion test Download PDFInfo
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- CN106454211B CN106454211B CN201510484347.2A CN201510484347A CN106454211B CN 106454211 B CN106454211 B CN 106454211B CN 201510484347 A CN201510484347 A CN 201510484347A CN 106454211 B CN106454211 B CN 106454211B
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Abstract
For spacecraft component surface separation, the vacuum high speed video system of expansion test.The invention discloses a kind of vacuum high speed video systems for vacuum environment analog machine, including high-speed camera, remote electric Tri-Chargable lens, airtight protecting tool set-up, LED light array, portable escope, electric connector etc., wherein video camera is standard interchangeable lenses high-speed camera, remote electric Tri-Chargable lens are provided remotely to camera focus, aperture, the operational capacity of focusing, airtight protecting tool set-up meets airtight sexual function, leak rate is less than 10^-7PaL/S, LED light array is made of more high-powered LED lamps, programmable power supply is for controlling LED light, it is directly controlled by controlling terminal, controlling terminal includes control computer and lens control terminal, it can satisfy remotely to camera, each state modulator ability of camera lens, and it provides remotely to the switching capability of LED light.
Description
Technical field
The invention belongs to spacecraft ground vacuum separations, expansion experimental technique field, and in particular to be used for space flight to a kind of
Device component surface separation, the camera system of expansion test.
Background technique
As China's spacecraft Project R&D requires to be continuously improved, more and more models propose needs in spies such as vacuum
The demand that video monitor is carried out under different environment, particularly with in-orbit rapid deployment, the radome fairing of unlock, explosion tripper etc.,
Propose the demand for carrying out high-speed camera with the big visual angle frame per second with 500fps or more full-scale to test specimen under vacuum.
Due to spacecraft separate expansion test general speed up to 5m/s or more, the operating condition of test time be generally 1s with
It is interior, in order to reduce the influence of ground air resistance, usually carried out in spacecraft environment simulation facility, it is internal to maintain 1Pa below
Vacuum environment.In such a case, there are the following problems for the use of conventional high-speed camera:
A) oil lubricant volatilization is condensed in eyeglass and generates pollution inside camera lens, and image sharpness is caused to be deteriorated；
B) LED and camera body heat dissipation are deteriorated, and are become from the radiating mode based on convection current by generating overheat very based on radiation
To the problem of burning out；
C) there may be low pressure discharges under low pressure for camera electronic component.
High-speed camera is sealed when using atmospheric pressure sealed tooling, when guaranteeing camera not by vacuum influence, again
There are the following problems:
Usual high-speed camera designs for lens changeable, and camera lens generally manually adjusts, and does not have and is become remotely
The function that burnt, focusing, aperture are adjusted, which results in after camera is installed in tooling, operator can not again be carried out it
Adjustment, particularly with large-scale experiments such as radome fairings, tooling generally requires to be installed at the top of environment simulation facility, and operator is difficult pacifying
Lens parameters are set before dress, result in the need for being dismounted for multiple times equipment to adjust lens parameters.
Currently, having Chinese patent " CN201410236278 hot vacuum environment special digital about camera system under vacuum
" CN201310232470 is a kind of suitable for vacuum, the camera shooting system of cryogenic environment for high-definition network camera and its system " and China
System ", both patents carry out high definition (720P or more) to test specimen mainly under vacuum and low temperature system, and low speed is (generally below
Monitoring and recording 30Fps) do not have the recording ability of 500fps or more, height are also unable to satisfy after only being replaced camera
Fast video camera motor-driven lens remotely again zoom, focusing requirement, flexibility is lower, need for every time test be customized, nothing
Method, which meets, is unfolded test using radome fairing, balloon expansion lamp as the various spacecraft vacuum separations of representative now.
Therefore, design and invent a kind of high-speed camera system that can be applied to vacuum environment, complete far-end operation can be achieved
System has positive realistic meaning.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of high speed video systems that can be applied to vacuum environment, it is intended to
Meet high-speed camera demand in spacecraft vacuum separation and expansion test chamber, while meeting the need such as remote operation, field adjustable
It asks.
In order to solve the above technical problems, The technical solution adopted by the invention is as follows:
In a kind of vacuum high speed video system for vacuum environment analog machine, including setting vacuum environment analog machine
Video camera sealing cabin and be arranged in outside analog machine lens control terminal, gigabit ethernet switch, program-controlled direct current
Source, control device, video camera sealing cabin one end sealed set quartz glass, the other end are sealed by airtight protecting tool set-up
Setting, video camera sealing cabin is interior to set gradually remote electric Tri-Chargable lens and high-speed camera along cabin central axis,
In remote electric Tri-Chargable lens connection line and the high-speed camera connection line hermetically passing video camera sealing cabin other end
Airtight protecting tool set-up and be again sealed off the airtight protecting tool set-up on vacuum environment analog machine, respectively with lens control end
End, gigabit ethernet switch electrical connection, gigabit ethernet switch are electrically connected control device, set around video camera sealing cabin
It is equipped with several groups high-powered LED lamp array arranged side by side, to be video camera sealing cabin interior lighting；Programme-controlled dc power is to thousand
Mbit ethernet power supply for exchange and by cable be LED light array power, lens control terminal is to remote electric Tri-Chargable lens
It is directly controlled, control device remotely control and remotely switch LED light battle array to each parameter of camera.
Wherein, airtight protecting tool set-up is made of three groups of air-tight electric connector groups, to guarantee vacuum environment analog machine and height
The leak rate requirement of fast video camera cabin.
Wherein, high-speed camera is standard interchangeable lenses high-speed camera；Remote electric Tri-Chargable lens provide long-range right
The focal length of high-speed camera, aperture, focusing operational capacity.
Wherein, quartz glass carries out airtight compression by preposition flange；Three groups in high-speed camera cabin airtight to be electrically connected
It connects device group and is plugged on sealing drum rear flange and be sealed.
Wherein, high-speed camera also connects circuit by video cables and is electrically connected debugging display.
Wherein, remote electric Tri-Chargable lens are connected using six lines using manually controlling, pass through two-wire power supply, four line traffic controls
System is drawn from the electric connector group on airtight vacuum environment analog machine respectively, with the camera lens control outside vacuum environment analog machine
Terminal electrical connection processed.
Wherein, LED light battle array is made of multiple groups LED light, by remotely starting when on-test is unfolded in separation, is closed after test
To prevent from burning.
Wherein, LED light battle array is annular large-power LED array, including enhancing the aluminum circuit board of heat exchange and being arranged in aluminum
Several LED arrays on circuit board.
High camera system safety of the invention is good, flexibility is high, failure rate is low, can satisfy and rectifies under vacuum conditions
The monitoring of the special tests such as cover separation, explosion unlock expansion, playback demand, improve the visualization water of spacecraft special test
It is flat.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the vacuum high speed video system for vacuum environment analog machine of the invention, wherein
101 be vacuum environment analog machine, and inside is vacuum environment, and outside is room temperature, atmospheric pressure environment；102 be video camera sealing cabin,
Inside is atmospheric pressure environment, and outside is vacuum environment；103 be quartz glass；104 be high-speed camera；105 be motor-driven lens；106
For sealing drum rear flange, sealing plug installation function is provided；107 be motor-driven lens connection line；108 be camera connecting line
Road；109 be video cables connecting link；110 be debugging display；111,112,113 be air-tight electric connector group, Ke Yibao
Demonstrate,prove the leak rate requirement of container；114 be LED light service cable；115 be high-powered LED lamp array；116 be lens control terminal；
117 be gigabit ethernet switch；118 be programme-controlled dc power；119 be control device.
Fig. 2 is the airtight protecting tool set-up in the vacuum high speed video system for vacuum environment analog machine of the invention
Schematic cross-section, 201 be forward flange in figure,
Fig. 3 is electric connector record drawing in the vacuum high speed video system for vacuum environment analog machine of the invention,
104 be high-speed camera in such as figure, and 105 be motor-driven lens, and 111 be electric connector, and 301 be gigabit Ethernet line, and 302 be high speed
Camera power supply, 303 be video coaxial cable, and 304 be lens control cable, and 305 be camera lens power supply line, and 306 be LED supply lines
Cable.
Fig. 4 is a specific embodiment in the vacuum high speed video system for vacuum environment analog machine of the invention
Annular large-power LED array schematic diagram, wherein 1 is aluminum circuit board, 2 be installation wire casing, and 3 be great power LED, and 4 be fixed spiral shell
Keyhole.
Specific embodiment
The vacuum camera system for vacuum environment analog machine of the invention is described in detail referring to the drawings,
But this describes merely illustrative, it is no intended to carry out any restrictions to protection scope of the present invention.
If Fig. 1 is the schematic diagram of vacuum high speed video system of the present invention, as shown in the figure 101 set for vacuum environment simulation
Standby, inside is vacuum environment (< 10-3Pa), and outside is room temperature, atmospheric pressure environment, wherein video camera cabin 102, out of my cabin LED array
115 etc. are mountable in its cabin, and gigabit switch 117, programme-controlled dc power 118, control computer 119 etc. are installed on out of my cabin；102
For video camera sealing cabin, inside is atmospheric pressure environment, and outside is vacuum environment, and leak rate is less than 10^-7PaL/S；103 be cylinder
Front end quartz glass is compressed by preposition flange；104 be high-speed camera, is standard interchangeable lenses high-speed camera；
105 be motor-driven lens, provide remotely to camera focus, aperture, focusing operational capacity；106 be sealing drum rear flange, is provided
Sealing plug installation function；107 be motor-driven lens connection line, supply lines containing motor-driven lens two, control line 4；108 be phase
Machine connection line contains ethernet line 8, power supply line two；109 be video cables connecting link, is connected using coaxial cable
It connects；110 be the debugging display of internal battery, and in-site installation personnel can be facilitated to debug；111,112,113 be airtight electricity
Connector group, it is ensured that the leak rate requirement of container, wherein 111 plug model Y27-2237TK1L, work in normal pressure end,
112 sockets be fixed on 106 sealing drum rear flanges and vacuum tank flange through walls on, model Y27-2237ZB4M, 113 plugs
For Y27-2237TK1LW, vacuum end is worked in；114 be LED light service cable；115 be high-powered LED lamp array, eventually by control
End is directly controlled；116 be lens control terminal, provides the zoom to camera lens, focusing, aperture control ability；117 be gigabit
Ethernet switch provides the interactive connection ability of system；118 be programme-controlled dc power (providing the power supply to LED light battle array)；
119 be control computer, can be controlled high-speed camera, LED light battle array.
It is preceding if Fig. 2 is that tooling is directly fixed in camera part section structure principle chart, wherein sealing cabin 102 and test
Flange 201 and sealing cabin 102 are locked by bolt, between forward flange 201 and quartz glass 103, sealing cabin 102 with it is quartzy
It is respectively provided with sealing ring between glass 103, is locked between sealing cabin 102 and rear flange 106 by bolt, there is sealing ring therebetween,
112 sockets are fixed on rear flange 106 by screw, and inside has a sealing ring, high-speed camera 104, motor-driven lens 105, interior
It sets LED array 115 to be fixed in sealing cabin 102, and is connected on electric connector 111 by cable.
If Fig. 3 is inside sealing cabin to the electrical connection figure outside environment simulation facility, wherein 111a, 112a, 113a are
Sealing cabin electric connector, 111b, 112b, 113b are the online device of environment simulation facility crossing cabin flange electricity consumption, and as shown in the figure 301 are
Gigabit Ethernet connecting line, left end are 8 needle RJ45 connector of standard, are connected to camera, right end is soldered to electric connector in cabin
The 1-8 core of 111a provides the connection such as long-range control, reading data to camera, and 302 be camera power supply line, and left side is thunder
Silent electric connector, is connected to camera, right end is soldered to the 9-10 core of electric connector 111a in cabin, and 303 be coaxial cable, left end
For video plug (consistent with video camera fuselage port), right end is soldered to the 11-12 core of electric connector 111a in cabin.Cable 301,
302,303 data transmission, the control, preview, function of supplying power for completing camera.Cable 304 is the controlling cable of camera lens 105, point
Not Wei aperture, focusing, Zoom control line and shared ground wire, left side connect with motor-driven lens, right side is soldered to electrical connection in cabin
The 21-24 core of device 111a, cable 305 are camera lens power cable, and left side is connect with motor-driven lens, and right side is soldered in cabin
The 25-26 core of electric connector 111a, 304 and 305 camera lenses complete control and function of supplying power to camera lens, are existing using camera end
There is interface, and there is the feasibility (aperture, zoom, each both threads of focusing) for being extended to 6 core control lines, 306 is in sealing cabins
LED power supply line has the power supply capacity to 3 paths of LEDs, and left side is soldered directly to LED circuit board, and right side is soldered in cabin electric
The 31-36 core of connector 111a.Electric connector 111a, 112a, 11a3 inner core be correspond, after connection by electric signal pass to
The 11-12 needle of sealed compartment male electrical connector 113a, electric connector 113a are connected to shaft cable 109, can be connected to as needed
Live display 110, other cables use vacuum-resistant low temperature environment polytetrafluoroethylcable cable, are connected to external corresponding 113b and are electrically connected
Connect device, after 113b, 112b, 111b docking, by electric signal transmission vacuum ring moulds device external electric connector 111b, wherein 1-8 needle
It is soldered to cable, is connected to gigabit ethernet switch, 9-10 needle is connected to camera programme-controlled dc power, and 21-24 is connected to
Motor-driven lens controlling terminal, 25-26 are connected to motor-driven lens programme-controlled dc power, and 31-36 is connected to LED array program-controlled electric
Source, the connection relationship as only provided circuit in figure are not intended to limit the length of cable, the customization of cable and integration etc..
If Fig. 4 is a specific embodiment in the vacuum high speed video system for vacuum environment analog machine of the invention
Annular large-power LED array schematic diagram, wherein 1 be aluminum circuit board, provide fixation and the heat sinking function of LED 3,2 be line
Slot, for circuit board power supply line to be connected to the electric connector at sealed cylinder rear, 3 be LED, is fixed on circuit board 1,4
To install bolt hole, for cylinder or other toolings will to be integrally fastened to.
It is separated in expansion test in spacecraft component, specific implementation is needed by following steps:
According to the parameter selections vacuum high speed video system such as test specimen and test chamber position, size installation position in container
It sets；
It determines container air-tightness, camera can be removed when necessary and hunt leak to container, it is ensured that leak rate is lower than 10^-7PaL/
S；
High speed video system is installed, cable 107,108, connection are installed in electric connector 111,113 shown in connection figure 1, Fig. 3
Programme-controlled dc power 118 out of my cabin, gigabit switch 117, lens control terminal 116 control computer 119, and erecting bed is aobvious
Show whether device 110, observation visual angle are able to satisfy test requirements document, are such as able to satisfy, then fixed system connects, should if being unable to satisfy
Adjust system mounting location and angle；
Live display is removed, LED array out of my cabin is installed as needed, camera lens is become using remote console 116
Burnt, focusing, aperture adjustment, it is ensured that link is intact；
Total inspection before test；
Test vacuumizes；
High speed video system booting, LED light adjust to maximum brightness, system and start to record a video；
Separation expansion on-test；
LED light array is closed, starts to be transmitted test photo by camera to computer；
Test is shut down, and container is pressed again, device powers down；
Receipts are removed in test.
Beijing Satellite Environment Engineering Research Institute has used the set equipment to carry out test of many times at present, solves radome fairing
Observation problem in separation, balloon expansion test.
Although the detailed description and description of the specific embodiments of the present invention are given above, it should be noted that
We can carry out various equivalent changes and modification to above embodiment according to the concept of the present invention, and generated function is made
It, should all be within protection scope of the present invention when with the spirit still covered without departing from specification and attached drawing.
Claims (8)
1. a kind of vacuum high speed video system for vacuum environment analog machine, including in setting vacuum environment analog machine
Video camera sealing cabin and the lens control terminal being arranged in outside analog machine, gigabit ethernet switch, programme-controlled dc power,
Control device, video camera sealing cabin one end sealed set quartz glass, the other end are sealed by airtight protecting tool set-up and are set
It sets, sets gradually remote electric Tri-Chargable lens and high-speed camera along cabin central axis in video camera sealing cabin, far
In the electronic Tri-Chargable lens connection line of journey and the high-speed camera connection line hermetically passing video camera sealing cabin other end
Airtight protecting tool set-up is simultaneously again sealed off the airtight protecting tool set-up on vacuum environment analog machine, whole with lens control respectively
End, gigabit ethernet switch electrical connection, gigabit ethernet switch are electrically connected control device, set around video camera sealing cabin
It is equipped with several groups high-powered LED lamp array arranged side by side, to be video camera sealing cabin interior lighting；Programme-controlled dc power is to thousand
Mbit ethernet power supply for exchange and by cable be LED light array power, lens control terminal is to remote electric Tri-Chargable lens
It is directly controlled, control device remotely control and remotely switch LED light battle array to each parameter of camera.
2. vacuum high speed video system as described in claim 1, wherein airtight protecting tool set-up is equipped with air-tight electric connector,
To guarantee the leak rate requirement of vacuum environment analog machine and high-speed camera cabin.
3. vacuum high speed video system as described in claim 1, wherein high-speed camera is standard interchangeable lenses high-speed camera
Machine；Remote electric Tri-Chargable lens provide remotely to the focal length of high-speed camera, aperture, focusing operational capacity.
4. vacuum high speed video system as described in any one of claims 1-3, wherein quartz glass is carried out by preposition flange
Airtight compression；Three groups of air-tight electric connector groups in high-speed camera cabin, which are plugged on sealing drum rear flange, to be sealed.
5. vacuum high speed video system as described in claim 1, wherein high-speed camera also passes through video cables and connects circuit
It is electrically connected debugging display.
6. vacuum high speed video system as described in claim 1, wherein remote electric Tri-Chargable lens are used and are manually controlled,
It is connected using six lines, by two-wire power supply, four line traffic controls, six lines are respectively from the electrical connection on airtight vacuum environment analog machine
Device group is drawn, and is electrically connected with the lens control terminal outside vacuum environment analog machine.
7. vacuum high speed video system as described in any one of claims 1-3, wherein LED light battle array is made of multiple groups LED light,
By remotely starting when separation expansion on-test, close after test to prevent from burning.
8. vacuum high speed video system as claimed in claim 7, wherein LED light battle array is annular large-power LED array, including
Several LED arrays for enhancing the aluminum circuit board of heat exchange and being arranged on aluminum circuit board.
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| CN111163251B (en) * | 2020-01-06 | 2021-03-19 | 北京卫星环境工程研究所 | Variable-view-angle camera system used in vacuum and high-low temperature environment |
| CN112781900A (en) * | 2020-12-15 | 2021-05-11 | 兰州空间技术物理研究所 | Inflation unfolding test method for flexible spacecraft in thermal vacuum environment |
| CN112591155A (en) * | 2020-12-15 | 2021-04-02 | 兰州空间技术物理研究所 | Evaluation method for inflatable unfolding structure of flexible ball spacecraft |
| CN113411479A (en) * | 2021-06-17 | 2021-09-17 | 北京卫星环境工程研究所 | Camera device for vacuum, low-temperature and strong electromagnetic field environment |
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| JP2000341565A (en) * | 1999-03-23 | 2000-12-08 | Toshiba Corp | Monitoring camera device |
| CN101770225B (en) * | 2008-12-29 | 2013-07-17 | 北京卫星环境工程研究所 | Centralized monitoring system for multiple sets of spacecraft thermal-vacuum environment simulating equipment |
| CN103354593A (en) * | 2013-06-13 | 2013-10-16 | 北京航空航天大学 | Camera system applicable to vacuum and cryogenic environment |
| CN103986861A (en) * | 2014-05-29 | 2014-08-13 | 齐军 | Digital high definition network camera special for thermal vacuum environment and system |
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