CN108132473A - A kind of 3D methods of exhibiting of the navigation terminal test scene based on OpenGL - Google Patents
A kind of 3D methods of exhibiting of the navigation terminal test scene based on OpenGL Download PDFInfo
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- CN108132473A CN108132473A CN201711415351.9A CN201711415351A CN108132473A CN 108132473 A CN108132473 A CN 108132473A CN 201711415351 A CN201711415351 A CN 201711415351A CN 108132473 A CN108132473 A CN 108132473A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
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- Radar, Positioning & Navigation (AREA)
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a kind of 3D methods of exhibiting of the navigation terminal test scene based on OpenGL, include the following steps：Mathematical modeling is carried out according to the size positions of darkroom in scene and each equipment；Texture modeling is carried out according to the apparent size of darkroom in scene and each equipment；Mathematical modeling is carried out according to the type of aerial signal in scene and power；Mathematical modeling is carried out according to the running orbit of equipment each in scene；Animation buffering is carried out according to the data uploading rate of equipment each in scene to calculate；The mode that scene is observed according to user builds FPS camera models.The present invention is applied to navigation testing field in other test platforms such as day, static state, being capable of the virtual condition of real simulation test scene, facility being provided for user of service.
Description
Technical field
The present invention relates to navigation terminal technical field of measurement and test, particularly a kind of methods of exhibiting of navigation terminal test scene.
Background technology
With the development of satellite navigation system and popularizing for application, it is the most quick that miniature navigation industry has become growth
One of industry, satellite navigation system can provide global navigator fix and time service service as the information system of basis property.It defends
Star navigation system is made of space segment, ground control segment and User Part, and navigation terminal is that satellite is led as User Part
The functions such as the important component of boat system application, navigation, positioning, the time service of satellite navigation system are all by navigation terminal reality
Existing.As Satellite Navigation Technique deepens continuously what production and living field was applied, the use scale of navigation terminal is constantly expanding
Greatly, the type of navigation terminal is varied, and function and purposes are different, just seems to the test verification of its function and performance
It is particularly important, therefore the measuring technology of navigation terminal is the core technology of satellite navigation application, is that research and development have independent intellectual production
The necessary means of the high-performance navigation terminal of power.
Navigation terminal test system is applied in the test process of navigation terminal, can control navigation sources, interference source, user
The equipment such as machine, turntable, power amplifier switch, two-dimentional sliding rail, frequency spectrograph, arrow net carry out automatic test, have become navigation terminal production
Product networking license and the important link of certification.But the spatial position of entire test scene and link relationship are non-in test process
Often complicated, general methods of exhibiting visualization is not strong, not intuitively, many problems is caused to software user of service, very not square
Just.
At present, mainly there are 2D planar processes and fixed camera method for the scene display method of navigation terminal testing field.2D
Planar process mainly shows that such as MFC, DirectUI, BCG etc., these controls cannot true mould by some third party controls
Intend the virtual condition of scene, ability to express is extremely limited；Fixed camera method mainly installs high speed phase in the fixation corner in darkroom
Machine is monitored in real time, although the method validity is stronger, of high cost, occupied space can have an impact test environment,
And can not realize scene amplification, reduce, 360 degree rotation function, also can not artificial antenna signal etc. special efficacys.
Invention content
There is provided the navigation under a kind of windows platforms based on OpenGL is whole for the technical problem to be solved in the invention
The 3D methods of exhibiting of test scene is held, it, can be true applied to navigation testing field in other test platforms such as day, static state
The virtual condition of simulation test scene provides facility for user of service.
In order to solve the above technical problems, the technical solution used in the present invention is as follows.
A kind of 3D methods of exhibiting of the navigation terminal test scene based on OpenGL, includes the following steps：
L1）Mathematical modeling is carried out according to the size positions of darkroom in scene and each equipment；
L2）Texture modeling is carried out according to the apparent size of darkroom in scene and each equipment；
L3）Mathematical modeling is carried out according to the type of aerial signal in scene and power；
L4）Mathematical modeling is carried out according to the running orbit of equipment each in scene；
L5）Animation buffering is carried out according to the data uploading rate of equipment each in scene to calculate；
L6）The mode that scene is observed according to user builds FPS camera models.
A kind of 3D methods of exhibiting of above-mentioned navigation terminal test scene based on OpenGL, step L1）Described in mathematics build
The coordinate system used during mould is cartesian coordinate system, and coordinate origin is darkroom ground center, is just being in the east x-axis, positive in the south for z
Axis, surface are y-axis, and the size positions information of darkroom and each equipment is obtained from configuration file.
A kind of 3D methods of exhibiting of above-mentioned navigation terminal test scene based on OpenGL, step L2）Described in scene
Data texturing used in darkroom and each equipment uses its 2D technique plan view, and edge is smoothed, and using true
Real light is irradiated.
A kind of 3D methods of exhibiting of above-mentioned navigation terminal test scene based on OpenGL, step L3）Described in antenna letter
Number include RN, RD and interference signal, carrying out aerial signal type and during power mathematical modeling, passing through different colors and distinguish day
The type of line signal expresses the power of aerial signal by thickness.
A kind of 3D methods of exhibiting of above-mentioned navigation terminal test scene based on OpenGL, step L4）In, it is run in equipment
When track carries out mathematical modeling, need to model the running orbit of two-dimentional sliding rail and turntable；The operation of the two dimension sliding rail
Track include vertical slide rail move left and right track and vertical slide rail top shoe move up and down track, the operation of the turntable
The xyz axis motion track of track including lower base and azimuthal rotary motion trace, the roll angle rotary motion trace of intermediate studdle with
And the azimuth pitch angle rotary motion trace of upper tray.
A kind of 3D methods of exhibiting of above-mentioned navigation terminal test scene based on OpenGL, step L5）Specific method be：
The rate of position data is reported according to each equipment, buffering is calculated and is continuously rendered for 20 frame animations.
A kind of 3D methods of exhibiting of above-mentioned navigation terminal test scene based on OpenGL, step L6）Described in FPS cameras
Model can carry out the horizontal vertical rotation of all around the moving of observation visual angle, the zoom of scene and scene.
As a result of above technical scheme, the invention technological progress is as follows.
The present invention thoroughly solves virtual condition, the table that real simulation scene is unable to existing for existing scene display method
Danone power is limited, can not realize the shortcomings of zoom of scene and rotation, and during the test, will not be to test environment
It has an impact, is capable of the virtual condition of real simulation test scene, can be suitable for what navigation terminal test 3D was shown as a kind of
Frame, can be very good to be applied to navigation testing field in other test platforms such as day, static state, substantially saved exploitation into
Sheet and period.
Description of the drawings
Fig. 1 is the 3D effect figure of the present invention.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be described in further detail.
A kind of 3D methods of exhibiting of the navigation terminal test scene based on OpenGL, applied to navigation terminal testing field,
Can real simulation test scene, and the operations such as can be amplified, reduce and rotate to scene, convenient for users to sense of reality
Test scene.3D methods of exhibiting of the present invention specifically includes following steps：
L1）Mathematical modeling is carried out according to the size positions of darkroom in scene and each equipment.
The coordinate system used during the mathematical modeling be cartesian coordinate system, coordinate origin be darkroom ground center, due east
Face is x-axis, positive in the south for z-axis, and surface is y-axis, and the size positions information of darkroom and each equipment is obtained from configuration file.
The mathematical modeling of darkroom and each equipment is as follows.
1）Darkroom
Darkroom is made of four sides wall and ground, and eight apex coordinate models are as follows：
v0 = (l1*0.5, 0, w1*0.5)、v1=(l1*0.5, 0, -w1*0.5)
v2 = (-l1*0.5, 0, -w1*0.5)、v3=(-l1*0.5, 0, w1*0.5)
v4 = (l1*0.5, h1, w1*0.5)、v5=(l1*0.5, h1, -w1*0.5)
v6 = (-l1*0.5, h1, -l1*0.5)、v7=(-l1*0.5, h1,w1*0.5)
Wherein, v0 ~ v3 is distributed in four corners of darkroom bottom, and v4 ~ v7 is distributed in four corners at the top of darkroom, from southeast corner
Start, rotate counterclockwise, l1 is darkroom length, and w1 is darkroom width, and h1 is darkroom height.
2）Absorbing material
Absorbing material is made of the positive rectangular pyramid of proper alignment, and on the ground, positive rectangular pyramid mathematical model is as follows for distribution：
v(a,b) = 1/3a2b
Wherein, a is the positive rectangular pyramid bottom surface length of side, and b is positive tetragonous cone height.
3）Two-dimentional sliding rail
Two-dimentional sliding rail is made of eight horizontal slide rails and eight vertical slide rails, uses cylinder model.
The dimension model of cylinder is as follows：
V (c)=r2*c
Wherein, c is the length of sliding rail, and r is the section radius of cylinder sliding rail.
4）Turntable
Turntable is arranged on ground center, is made of lower base, intermediate studdle, top pallet.
Lower base is made of the cube that the length of side is d, and center position coordinates are（0,0,0）；
Intermediate studdle is made of cuboid, and the length, width and height of intermediate studdle are respectively l2, w2, h2, and center is (0, d+h2*
0.5,0)；
Upper tray is made of cuboid, and the length, width and height of upper tray are respectively l3, w3, h3, and center is (0, d+h2*0.5
+ h3*0.5,0))；
5）Antenna
Antenna is divided into RD, RN and potato masher antenna, wherein there are eight potato masher antennas to be fixed on the sliding block of vertical slide rail, it can be upper and lower
Mobile, other antennas are each attached on metope.Subscriber computer is arranged on the center of turntable top pallet.
The configuration file of system reading antenna first, then calculate antenna where metope on position, specific method is such as
Under：
Subscriber computer is to the distance of plane where thing face wall antenna：ly= l1*0.5–hanta
Subscriber computer is to the distance of plane where the face wall antenna of north and south：wy= w1*0.5–hanta
Subscriber computer is to the distance of plane where wall top antenna：uy=h1–hanta–hwp
Subscriber computer is to the distance of plane where ground-plane antenna：dy=hwp–hanta
Wherein, l1, w1, h1 are the length in darkroom, and hwp=d+h2+h3 is high for turntable, and hanta is height of the antenna to metope.
L2）Texture modeling is carried out according to the apparent size of darkroom in scene and each equipment.
Data texturing used in darkroom and each equipment is using its 2D technique plan view in scene of the present invention, to edge into
Row smoothing processing, and be irradiated using true light.Data texturing file supports tga and bmp format pictures.
L3）Mathematical modeling is carried out according to the type of aerial signal in scene and power.
Aerial signal includes RN, RD and interference signal in the present invention, is carrying out aerial signal type and power mathematical modeling
When, by the type of different color differentiation aerial signals, the power of aerial signal is expressed by thickness.For example, RD and RN
Signal uses yellow laser effect, and interference signal uses blue laser effect, and the line width of watt level represents ranging from 1 ~ 10.
L4）Mathematical modeling is carried out according to the running orbit of equipment each in scene.
When equipment running orbit carries out mathematical modeling, need to model the running orbit of two-dimentional sliding rail and turntable.
Wherein, what the running orbit of two-dimentional sliding rail included vertical slide rail moves left and right track and vertical slide rail top shoe
Move up and down track.When two-dimentional sliding rail carries out data modeling, the position data that is reported according to sliding rail is called and shows that list is drawn and slide
Rail model, then shifting sledge model to current location.
The running orbit of turntable includes the xyz axis motion track of lower base and azimuthal rotary motion trace, intermediate studdle
Roll angle rotary motion trace and upper tray azimuth pitch angle rotary motion trace.When turntable carries out data modeling, according to turntable
The position data reported is called and shows that subscriber computer and mount model are drawn in list, and then mobile subscriber's machine and mount model are extremely worked as
Preceding angles and positions.
Pass through step L1）After completing modeling to L4, the 3D effect figure of test scene is as shown in Figure 1.
L5）Animation buffering is carried out according to the data uploading rate of equipment each in scene to calculate.Specifically computational methods are：
It often receives an equipment and uploads data, continuous rendering data segment is generated from prev to now with step steppings and is pushed to slow
Queue is rushed, step=(now-prev)/(fps * T), T are the period (unit that device data uploads：s)；Then every
The rendering data segment that 1fps takes out all models from buffering queue is drawn, and fps is the frame rate of animation.
The rate of position data is reported according to each equipment, buffering is calculated and is continuously rendered for 20 frame animations.
L6）The mode that scene is observed according to user builds FPS camera models.
The level that FPS camera models can carry out all around the moving of observation visual angle, the zoom of scene and scene is hung down
Direct rotary turns.Mode of operation and corresponding actual effect are as shown in the table.
Certainly, in practice, the setting of mode of operation can according to actual demand, be carried out.
Claims (7)
1. a kind of 3D methods of exhibiting of the navigation terminal test scene based on OpenGL, which is characterized in that include the following steps：
L1）Mathematical modeling is carried out according to the size positions of darkroom in scene and each equipment；
L2）Texture modeling is carried out according to the apparent size of darkroom in scene and each equipment；
L3）Mathematical modeling is carried out according to the type of aerial signal in scene and power；
L4）Mathematical modeling is carried out according to the running orbit of equipment each in scene；
L5）Animation buffering is carried out according to the data uploading rate of equipment each in scene to calculate；
L6）The mode that scene is observed according to user builds FPS camera models.
2. a kind of 3D methods of exhibiting of navigation terminal test scene based on OpenGL according to claim 1, feature
It is, step L1）Described in mathematical modeling when the coordinate system that uses be cartesian coordinate system, coordinate origin is in the ground of darkroom
The heart, positive is in the east x-axis, positive in the south for z-axis, and surface is y-axis, and the size positions information of darkroom and each equipment is from configuration file
Middle acquisition.
3. a kind of 3D methods of exhibiting of navigation terminal test scene based on OpenGL according to claim 1, feature
It is, step L2）Described in scene data texturing used in darkroom and each equipment using its 2D technique plan view, opposite side
Edge is smoothed, and is irradiated using true light.
4. a kind of 3D methods of exhibiting of navigation terminal test scene based on OpenGL according to claim 1, feature
It is, step L3）Described in aerial signal include RN, RD and interference signal, built carrying out aerial signal type and power mathematics
During mould, the type of aerial signal is distinguished by different colors, the power of aerial signal is expressed by thickness.
5. a kind of 3D methods of exhibiting of navigation terminal test scene based on OpenGL according to claim 1, feature
It is, step L4）In, when equipment running orbit carries out mathematical modeling, need to the running orbit of two-dimentional sliding rail and turntable into
Row modeling；What the running orbit of the two dimension sliding rail included vertical slide rail moves left and right the upper of track and vertical slide rail top shoe
Lower motion track, the running orbit of the turntable include lower base xyz axis motion track and azimuthal rotary motion trace, in
Between the roll angle rotary motion trace of pillar and the azimuth pitch angle rotary motion trace of upper tray.
6. a kind of 3D methods of exhibiting of navigation terminal test scene based on OpenGL according to claim 1, feature
It is, step L5）Specific method be：The rate of position data is reported according to each equipment, buffering is calculated and is moved for 20 frames
Draw continuous render.
7. a kind of 3D methods of exhibiting of navigation terminal test scene based on OpenGL according to claim 1, feature
It is, step L6）Described in FPS camera models can carry out all around the moving of observation visual angle, the zoom of scene and field
The horizontal vertical rotation of scape.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112070894A (en) * | 2020-11-11 | 2020-12-11 | 湖南卫导信息科技有限公司 | Real environment navigation multipath real-time simulation method, device, medium and electronic equipment |
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