CN102540150A - Implementation method for multi-radar video multi-window on-screen display in VTS (vessel traffic service) system - Google Patents
Implementation method for multi-radar video multi-window on-screen display in VTS (vessel traffic service) system Download PDFInfo
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- CN102540150A CN102540150A CN2011104403205A CN201110440320A CN102540150A CN 102540150 A CN102540150 A CN 102540150A CN 2011104403205 A CN2011104403205 A CN 2011104403205A CN 201110440320 A CN201110440320 A CN 201110440320A CN 102540150 A CN102540150 A CN 102540150A
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Abstract
The invention discloses an implementation method for multi-radar video multi-window on-screen display in a VTS (vessel traffic service) system. The implementation method comprises following steps: (1) obtaining selected radar video data sources and creating calculating threads corresponding to the radar video data sources; simultaneously obtaining windows of radar videos required to be displayed, creating display threads corresponding to the display windows and intelligently predicting the calculating threads; (2) establishing thread priority; (3) determining calculating quantities of the various threads, reasonably distributing the calculating quantities to various CPU (central processing unit) cores, synchronizing the various threads and displaying final results onto a screen; and (4) predicting a following operation direction of an operator according to current operation of the operator, obtaining a calculating result in advance, and directly applying the calculating result before the operator finishes the current operation. The method can shorten calculating time required by radar video signal display, and increases processing quantity of radar video data within unit time.
Description
Technical field
The present invention relates to a kind of radar video display technique, the same screen display technology of particularly a kind of many radar videos multiwindow.
Background technology
In vessel traffic navigational system (VTS) system; The information that operating terminal mainly shows has radar video (1-10 portion radar), VHF-DF information, radar target tracking information, unmanned station monitor message, industrial television, AIS information and nautical chart information etc.; Owing to limited by computing power, tradition shows that radar video has following problem in the current VTS system:
(1) computing time long, display resolution is low;
(2) after the switching displayed parameter (like range, center etc.), 3 seconds response times long (>);
(3) many radars (> are 4 ones) obviously have when data show simultaneously and show the frame losing phenomenon.
Based on the variety of problems that aforementioned existing radar video display technique exists, the inventor furthers investigate it, and improves through test of many times, and this case produces thus.
Summary of the invention
Technical matters to be solved by this invention; Be to defective and deficiency in the aforementioned background art; Provide in a kind of VTS system many radar videos multiwindow with the implementation method of screen display; It can reduce radar video signal and show needed computing time, improves the treatment capacity of radar video data in the unit interval.
The present invention is for solving above technical matters, and the technical scheme that is adopted is:
Many radar videos multiwindow comprises the steps: with the implementation method of screen display in a kind of VTS system
(1) obtain selected radar video data source, and corresponding each radar video data source is created a computational threads; Obtain the window of required demonstration radar video simultaneously, and corresponding each display window is created a demonstration thread, intelligent predicting computational threads;
(2) establish each thread priority;
(3) confirm the calculated amount of each thread, reasonable distribution and carries out each thread synchronously last result to be shown on the screen to each core cpu;
(4) according to the current operation of operator, predict its next step direction of operating, and draw result of calculation in advance, when the operator finishes current operation, directly use result of calculation.
In the above-mentioned steps (4), corresponding each operator sets up the operating habit knowledge base, the current operation of search operation person in this operating habit knowledge base, and predict next step direction of operating.
After adopting such scheme; The present invention at first corresponding radar data source and display window number are created a plurality of threads, and set up the intelligent predicting computational threads, calculate the calculated amount of each thread in real time; Reasonable distribution is to each core cpu; The intelligent predicting computing module can calculate according to next step operation of operator's current operative intelligence predicted operation person in advance, thereby has improved radar video data processing amount in operation corresponding speed and unit interval.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Embodiment
Below with reference to accompanying drawing, technical scheme of the present invention is elaborated.
As shown in Figure 1; The present invention provides in a kind of VTS system many radar videos multiwindow with the implementation method of screen display; Be mainly used in the VTS system and obtain geographical environment information through the electronic chart system; Obtain radar video information through the radar video acquisition system, described implementation method comprises the steps:
(1) obtain selected radar video data source, and corresponding each radar video data source is created a computational threads; Obtain the window of required demonstration radar video simultaneously; And corresponding each display window is created a demonstration thread; And set up the intelligent predicting computational threads; The groundwork of intelligent predicting computational threads is the input instruction of the current input equipment of monitoring, according to next step operation of operator's current operative intelligence predicted operation person, and predicted operation is calculated in advance;
(2) establish each thread priority of (comprise and show thread and computational threads), to the more urgent task that need meet with a response immediately of time requirement, give high priority, and other thread priority should be lower than its priority for those; The window ID that the affirmation of priority activates according to the active user; And each radar display parameter decision; The priority level of each radar computational threads is confirmed the priority of each thread according to the size of indication range in the viewing area; The viewing area is big more, and priority is high more, and computational threads possesses and is higher than the priority that shows thread; The priority that shows thread confirms that by the size and the state of activation of current display area the window of current activation possesses the highest priority, and the big thread priority in viewing area is higher than the little thread in viewing area.
(3) confirm the calculated amount of each thread (comprise computational threads with show thread), reasonable distribution and carries out each thread synchronously last result to be shown on the screen to each core cpu;
(4) according to the current operation of operator (as opening measurement range selection dialog box, switching mouse state etc.), predict its next step direction of operating.Take the change range to give an example; Change the demonstration range of radar, generally carry out several actions: (one) opens the measurement range selection dialog box, (two) input or selection range; (3) click ACK button, accomplish these several operation required times the chances are about 5 seconds.When opening the measurement range selection dialog box; Intelligent predicting computing module then predicted operation person will change range, in advance different ranges carried out preliminary data and will calculate, when the user imports or selected range; With regard to beginning the range of selecting is carried out accurate Calculation such as coordinate transform; Draw result of calculation in advance, when the operator clicks ACK button, directly use result of calculation.Utilize the method can greatly shorten the operation response time; And corresponding each operator sets up the operating habit knowledge base, notes operations of operators, sums up the operations of operators custom; Next step action of predicted operation person better, thus prediction accuracy improved.
The present invention can obtain effect preferably on the CPU more than 4 nuclears, computing time is short, and display resolution is high.After the switching displayed parameter (like range, center etc.), and the response time weak point (1 second), many radars (10 ones) multiwindows (5) do not have the frame losing phenomenon when data show simultaneously.
Above embodiment is merely explanation technological thought of the present invention, can not limit protection scope of the present invention with this, every technological thought that proposes according to the present invention, and any change of on the technical scheme basis, being done all falls within the protection domain of the present invention.
Claims (2)
1. many radar videos multiwindow is characterized in that comprising the steps: with the implementation method of screen display in the VTS system
(1) obtain selected radar video data source, and corresponding each radar video data source is created a computational threads; Obtain the window of required demonstration radar video simultaneously, and corresponding each display window is created a demonstration thread, intelligent predicting computational threads;
(2) establish each thread priority;
(3) confirm the calculated amount of each thread, reasonable distribution and carries out each thread synchronously last result to be shown on the screen to each core cpu;
(4) according to the current operation of operator, predict its next step direction of operating, and draw result of calculation in advance, when the operator finishes current operation, directly use result of calculation.
2. many radar videos multiwindow is with the implementation method of screen display in the VTS as claimed in claim 1 system; It is characterized in that: in the said step (4); Corresponding each operator sets up the operating habit knowledge base; The current operation of search operation person in this operating habit knowledge base, and predict next step direction of operating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104403205A CN102540150A (en) | 2011-12-26 | 2011-12-26 | Implementation method for multi-radar video multi-window on-screen display in VTS (vessel traffic service) system |
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| CN2011104403205A CN102540150A (en) | 2011-12-26 | 2011-12-26 | Implementation method for multi-radar video multi-window on-screen display in VTS (vessel traffic service) system |
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| CN102540150A true CN102540150A (en) | 2012-07-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675763A (en) * | 2013-12-04 | 2014-03-26 | 南京鹏力系统工程研究所 | Hardware acceleration based vectorized VTS (vessel traffic service) system radar video drawing method |
| CN110248222A (en) * | 2018-11-21 | 2019-09-17 | 浙江大华技术股份有限公司 | A kind of method, apparatus and system of multiwindow simultaneous display |
Citations (1)
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| CN1167402A (en) * | 1996-02-28 | 1997-12-10 | 三星电子株式会社 | Multi-layer sprite graphics display device with same-screen graphics for TV |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1167402A (en) * | 1996-02-28 | 1997-12-10 | 三星电子株式会社 | Multi-layer sprite graphics display device with same-screen graphics for TV |
Non-Patent Citations (2)
| Title |
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| 孟杰: "多视频多窗口合成显示技术研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
| 祝宏涛等: "导航雷达图像显示的多线程编程", 《现代电子技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675763A (en) * | 2013-12-04 | 2014-03-26 | 南京鹏力系统工程研究所 | Hardware acceleration based vectorized VTS (vessel traffic service) system radar video drawing method |
| CN110248222A (en) * | 2018-11-21 | 2019-09-17 | 浙江大华技术股份有限公司 | A kind of method, apparatus and system of multiwindow simultaneous display |
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Application publication date: 20120704 |