CN103454617A - Ship-navigation radar integrated display method - Google Patents
Ship-navigation radar integrated display method Download PDFInfo
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- CN103454617A CN103454617A CN2013103678248A CN201310367824A CN103454617A CN 103454617 A CN103454617 A CN 103454617A CN 2013103678248 A CN2013103678248 A CN 2013103678248A CN 201310367824 A CN201310367824 A CN 201310367824A CN 103454617 A CN103454617 A CN 103454617A
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Abstract
The invention discloses a ship-navigation radar integrated display method. The ship-navigation radar integrated display method comprises the following steps that firstly, content displayed by radar is divided into a plurality of display layers and all the display layers are independent of one another; secondly, according to the rotation parameters and the translation parameters, the display layers are drawn to a radar screen in an integrated mode in sequence. According to the ship-navigation radar integrated display method, the content displayed by the radar is respectively distributed to the display layers, each display layer is drawn to the screen according to the rotation parameter and the translation parameter, and all the display layers are independent of one another in updating. Therefore, the drawing efficiency is effectively improved, and an extensible drawing method is provided in the mode of vein increase and decrease.
Description
Technical field
The present invention relates to Radar Technology, relate in particular to a kind of ship-navigation radar synthesis display method.
Background technology
Radar utilizes radiotelegraphy find target and measure the position of target in space, it generally comprises the radar wave emission, radar echo signal is processed and the large important component part of radar synthesis display three, wherein, the radar synthesis display is partly for drawing radar return, draw echo twilight sunset, draw various navigational tools and tracking target or AIS icon, or even sea chart, with the whole extra large land of easy operating personnel whole observation environment, moving target and current environment is done to various parameter measurements.Early stage radar integrated display system, complete echo data by special-purpose graphic processing circuit and process, and target is drawn and other navigational tools.This radar synthesis display mode, although hardware handles figure speed is fast, shortcoming is the hardware design complexity, displaying contents is limited, along with later displaying contents increases, be difficult to meet consumers' demand, and user interactivity is poor.
At present, the radar integrated display system starts to abandon traditional hardware graphics processing mode, introduce operating system and respond user's operation, and digitizing figure technology starts to be applied to the various aspects of radar system.Along with improving constantly with the capacity of display memory, the speed of figure display chip constantly increases, it is abundant that the content of radar synthesis display starts to become, flexibly, the work of exploitation starts to turn to relatively easy software development by hardware development, and the response of user's request is also become to rapid.However, the degree of digital applications, different figure display algorithms, to the display mode of radar system, extended mode and display efficiency have very big impact.
Summary of the invention
For the shortcoming of prior art, the purpose of this invention is to provide a kind of ship-navigation radar synthesis display method, to solve, radar integrated information display mode is single, poor expandability and the low problem of display efficiency.To achieve these goals, technical scheme of the present invention is: a kind of ship-navigation radar synthesis display method, comprise the steps: that the division of teaching contents that (1) shows radar is some display layers, and separate between each display layer; (2) according to rotation parameter and translation parameters, described display layer is merged and is plotted on the radar screen according to a definite sequence.
Preferably, in step (1), at first utilize 3D graphics process storehouse to make initialization process according to graphic hardware and running environment.
Preferably, in step (2), described display layer merges the order of drawing to be drawn according to priority and the display effect arrangement of each layer, and priority is lower is plotted in bottom, and priority is higher is plotted in upper strata.
Preferably, in 3D graphics process storehouse, " layer " shows as " texture ", the hierarchical sequence that described display layer is divided be respectively from bottom to up sea chart texture, echo twilight sunset texture, echo texture, stablize texture, steady north direction texture, bow and stablize texture, static texture, target texture.
Preferably, the anglec of rotation that described rotation parameter is plotted in the radar screen for texture is drawn, and described translation parameters is drawn for the translation position that is plotted in the radar screen of texture.
Preferably, according to " compass data " and " upwards pattern ", upgrade the rotation parameter of each texture; According to GPS or the Big Dipper " geographic position sensors information " and " motor pattern ", upgrade the translation parameters of each texture.
Preferably, according to the refresh rate of default figure, on the radar screen, in order, by rotation parameter and translation parameters, each texture is drawn out.
Preferably, according to the echo data of response radar rear end, interrupt, the radar return data that read are plotted to echo texture and echo twilight sunset texture; According to the target update frequency, will follow the tracks of or the AIS target is plotted on target texture; Make progress and stable mode according to navigational tool and various radar map target, be plotted to respectively the steady north direction texture, bow stablizes texture and ground is stablized on texture.
Preferably, range or the unit according to the user, selected, response is made in the drafting of each texture, according to adjusted range or unit, the drafting content under texture is done to renewal.
Compared with prior art, the present invention is arranged into respectively each display layer by the displaying contents of radar, each display layer is plotted on screen according to rotation and translation parameters, each display layer upgrades separate, not only effectively improved drafting efficiency, and, by the mode of increase and decrease texture, provide the method that can expand drafting.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 is rotation and the translation parameters table of each display layer of the present invention.
Fig. 2 is the displaying schematic diagram of each display layer of the present invention.
Embodiment
Ship-navigation radar synthesis display method of the present invention comprises the steps:
(1) at first utilize 3D graphics process storehouse OpenGL or DirectX to do an initialization process according to graphic hardware and running environment, for example in DirectX, call CreateDevice and create equipment, call the attribute that SetRenderState arranges rendering apparatus.
(2) content of radar synthesis display is comprised of layer rendering and hierarchical fusion drafting two large divisions.The principle that layer is divided for " direction is stable " consistent be divided into one deck, for example: steady north direction layer, bow resistant strata; " motion stabilization " is consistent is divided into one deck, for example: ground resistant strata, sea chart layer; Function singleness be divided into one deck, for example, echo layer, echo twilight sunset layer and destination layer.The order that hierarchical fusion is drawn, draw according to priority and the display effect arrangement of each layer, and the low layer of priority is as sea chart, and echo twilight sunset layer and echo layer are plotted in bottom; And destination layer, and other each layers are plotted in the superiors.The division of teaching contents of radar synthesis display is 8 layers, and in 3D graphics process storehouse, " layer " shows as " texture ".Call CreateTexture application texture in DirectX, the attribute of texture should be the ARGB form, has transparent attribute, hierarchical sequence from bottom to up respectively: 1) sea chart texture; 2) echo twilight sunset texture; 3) echo texture; 4) stablize texture; 5) steady north direction texture; 6) bow is stablized texture; 7) static texture; 8) target texture.The radar sea chart that usually need to superpose, so be separately the display definition sea chart texture of sea chart; The renewal rate of radar return is relevant with the rotational speed of antenna, so need to draw separately the radar return texture; Some radar systems need to stay the twilight sunset of radar return, so playing up of twilight sunset is plotted in separately in a texture; Variable range marker ring (VRM) and electronic anti-fogery line (EBL) according to stability property, can select to be plotted in the steady north direction texture and bow is stablized texture, even stablizes texture with may be plotted in; The ARPA target is drawn in the renewal of target texture layer ground and the AIS target is main.
(3) by being drawn according to rendering parameter of above 8 textures, the rendering parameter of each texture comprises: rotation parameter and translation parameters.Each texture needs according to rendering parameter before drafting, and the drafting of texture is changed.The effect of rotation parameter is that texture is plotted in the anglec of rotation of screen and is drawn; The effect of translation parameters is that the position that is plotted in the screen translation of texture is drawn." rotation parameter " of each texture arranged to initial value is 0, and " translation parameters " arranged to initial value for (0,0); Mean that each texture does not rotate yet not translation
(4) refer to Fig. 1, according to the rotation parameter of the compass data that receive from the compass sensor and each texture of mode decision that makes progress, and the rotation parameter that upgrades each texture; At first obtain the compass data, data (GYRO) are the anglec of rotation of this ship with respect to positive north.In the time of on selecting positive north orientation, the rotation offset of steady north direction texture is 0, and bow to stablize the rotation offset of texture be GYRO; When selecting bow to make progress, the rotation offset of steady north direction texture is-GYRO, and bow to stablize the rotation offset of texture be 0.
(5) refer to Fig. 1, according to determine the translation parameters of each texture from geographic position sensors (GPS) and motor pattern.Geographical location information means with the longitude and latitude form, be plotted on screen, needs through from transferring to of longitude and latitude screen coordinate, and then texture could correctly be plotted on screen.At first obtain this ship current geographic position data, data (GEOPOS_0) show as longitude and latitude; When charting, the ，Gai center, drafting center (GEOPOS_1) of fixing sea chart should be not far from GEOPOS_0.The skew of two positions is VECT=GEOPOS_1-GEOPOS_0, and VECT is the vector be comprised of azimuth-range.When selecting relative motion, show that the relative screen of this ship on screen is static, it is 0 that bow is stablized the texture translation parameter, sea chart shrinks back with respect to this ship working direction, so the translation parameters that the sea chart texture is plotted on screen is VECT; When selecting true motion, sea chart is static with respect to screen, and the translation parameters of sea chart texture is 0, and this ship is with respect to past the ship forward direction motion of screen, so the translation parameters that bow is stablized texture is-VECT.
(6) refer to Fig. 2, according to the refresh rate of default figure, in order, by rendering parameter, each texture is drawn out on screen; The echo data of response radar rear end interrupts, and the radar return data that read are plotted to echo texture and echo twilight sunset texture; According to the target update frequency, will follow the tracks of or the AIS target is plotted on target texture; Make progress and stable mode according to navigational tool and various radar map target, be plotted to respectively the steady north direction texture, bow stablizes texture and ground is stablized on texture; If some navigational tool can be selected different stable modes, need to add and draw code in different texture; Range or the unit according to the user, selected, the drafting of each texture need to be made a response timely, according to adjusted range or unit, the drafting content under texture is done to renewal; Each layer is independently updated as required, does not interfere with each other, for example, sea chart texture update sea chart, echo texture update radar return, twilight sunset texture update echo twilight sunset, target texture upgrades tracking target or AIS target, and positive northern texture, bow texture and ground are stablized texture and drawn other navigations information etc.
Although the present invention discloses as above with preferred embodiment, not in order to limit scope of the invention process.The ordinary person of any this area, not breaking away from scope of invention, do some improvement, and every equal improvement of doing according to the present invention, should be scope of the present invention and contain.
Claims (9)
1. a ship-navigation radar synthesis display method, is characterized in that comprising the steps:
(1) division of teaching contents radar shown is some display layers, separate between each display layer;
(2) according to rotation parameter and translation parameters, described display layer is merged and is plotted on the radar screen according to a definite sequence.
2. ship-navigation radar synthesis display method as claimed in claim 1, is characterized in that, in step (1), at first utilizes 3D graphics process storehouse to make initialization process according to graphic hardware and running environment.
3. ship-navigation radar synthesis display method as claimed in claim 2, it is characterized in that, in step (2), described display layer merges the order of drawing to be drawn according to priority and the display effect arrangement of each layer, priority is lower is plotted in bottom, and priority is higher is plotted in upper strata.
4. ship-navigation radar synthesis display method as claimed in claim 3, it is characterized in that, in 3D graphics process storehouse, " layer " shows as " texture ", the hierarchical sequence that described display layer is divided be respectively from bottom to up sea chart texture, echo twilight sunset texture, echo texture, stablize texture, steady north direction texture, bow and stablize texture, static texture, target texture.
5. ship-navigation radar synthesis display method as claimed in claim 4, it is characterized in that, the anglec of rotation that described rotation parameter is plotted in the radar screen for texture is drawn, and described translation parameters is drawn for the translation position that is plotted in the radar screen of texture.
6. ship-navigation radar synthesis display method as claimed in claim 5, is characterized in that, according to " compass data " and " upwards pattern ", upgrades the rotation parameter of each texture; According to GPS or the Big Dipper " geographic position sensors information " and " motor pattern ", upgrade the translation parameters of each texture.
7. ship-navigation radar synthesis display method as claimed in claim 6, is characterized in that, according to the refresh rate of default figure, on the radar screen, in order, by rotation parameter and translation parameters, each texture drawn out.
8. ship-navigation radar synthesis display method as claimed in claim 4, is characterized in that, according to the echo data of response radar rear end, interrupts, and the radar return data that read are plotted to echo texture and echo twilight sunset texture; According to the target update frequency, will follow the tracks of or the AIS target is plotted on target texture; Make progress and stable mode according to navigational tool and various radar map target, be plotted to respectively the steady north direction texture, bow stablizes texture and ground is stablized on texture.
9. ship-navigation radar synthesis display method as claimed in claim 4, is characterized in that, range or the unit according to the user, selected, and response is made in the drafting of each texture, according to adjusted range or unit, the drafting content under texture is done to renewal.
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Cited By (3)
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| CN105204015A (en) * | 2015-09-14 | 2015-12-30 | 上海无线电设备研究所 | Control display system and method for laser active imaging system |
| CN106019284A (en) * | 2016-08-15 | 2016-10-12 | 中船航海科技有限责任公司 | Fusion algorithm of ship radar ARPA target and AIS target |
| CN107561505A (en) * | 2017-07-27 | 2018-01-09 | 中国船舶重工集团公司第七二四研究所 | A kind of Echo Characteristics visual display method |
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Cited By (4)
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| CN105204015A (en) * | 2015-09-14 | 2015-12-30 | 上海无线电设备研究所 | Control display system and method for laser active imaging system |
| CN105204015B (en) * | 2015-09-14 | 2018-07-10 | 上海无线电设备研究所 | A kind of control display system and its method for Laser Active Imaging System Used |
| CN106019284A (en) * | 2016-08-15 | 2016-10-12 | 中船航海科技有限责任公司 | Fusion algorithm of ship radar ARPA target and AIS target |
| CN107561505A (en) * | 2017-07-27 | 2018-01-09 | 中国船舶重工集团公司第七二四研究所 | A kind of Echo Characteristics visual display method |
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