CN109640145A - A kind of driving drilling method and device for track train - Google Patents
A kind of driving drilling method and device for track train Download PDFInfo
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- CN109640145A CN109640145A CN201811584140.2A CN201811584140A CN109640145A CN 109640145 A CN109640145 A CN 109640145A CN 201811584140 A CN201811584140 A CN 201811584140A CN 109640145 A CN109640145 A CN 109640145A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47217—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for controlling playback functions for recorded or on-demand content, e.g. using progress bars, mode or play-point indicators or bookmarks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/637—Control signals issued by the client directed to the server or network components
- H04N21/6373—Control signals issued by the client directed to the server or network components for rate control, e.g. request to the server to modify its transmission rate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/835—Generation of protective data, e.g. certificates
- H04N21/8352—Generation of protective data, e.g. certificates involving content or source identification data, e.g. Unique Material Identifier [UMID]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/8547—Content authoring involving timestamps for synchronizing content
Abstract
The present invention relates to a kind of driving drilling method and device for track train, include the following steps: that the information to each mark in rehearsal video is marked；The information of label includes the locating frame of mark, mark location in a frame；The rehearsal video is used to drive a vehicle rehearsal, during driving a vehicle rehearsal, if receiving modified logo instruction, then according to the information of label, frame that need to modify, containing respective flag is found in rehearsal video, and determines the location of mark in corresponding frame, modifies the mark.This programme can allow crew more to intuitively understand the situation of locomotive operation route, and pass through the relevant information of the surface marks such as marking signal machine, it may be implemented to modify corresponding surface mark in video rehearsal broadcasting, the case where drilling improper driving, help to train the operation of crew horizontal, flexible ability is improved, important guarantee is provided for train operating safety.
Description
Technical field
The present invention relates to a kind of driving drilling methods and device for track train, belong to technical field of video processing.
Background technique
With the continuous progress of science and technology, the variation that track transportation industry is also advanced by leaps and bounds.Train operating safety becomes
One the problem of being concerned, to solve the problems, such as this, it is necessary to which the operation for improving crew is horizontal, allows crew is detailed to be familiar with fortune
Row line can timely cope with various problems.Traditional technology is all by directly carrying out together LKJ log and 6A video
Step association plays, and then crew is allowed to understand the situation of working line in detail, is familiar with driving outdoor scene；But it is regarded in this method
Always there is the phenomenon that unintelligible or Caton in frequency image quality, and this method only can be suitably used for simple log playback, no
It is able to satisfy in carrying out driving rehearsal according to the variation of the road signs such as signal lamp.
Summary of the invention
The object of the present invention is to provide a kind of driving drilling methods and device for track train, to solve existing skill
During the video rehearsal of art plays, it is only capable of being familiar with driving outdoor scene according to video actual content, different road sign downlinks can not be carried out
The problem of vehicle is drilled.
To achieve the above object, the solution of the present invention includes:
A kind of driving drilling method for track train of the invention, includes the following steps:
1) information of each mark in rehearsal video is marked；The information of label includes the locating frame of mark, mark
The location of in a frame；
2) the rehearsal video is used to drive a vehicle rehearsal, during driving a vehicle rehearsal, if receiving modified logo instruction,
Then according to the information of label, frame that need to modify, containing respective flag is found in rehearsal video, and determines corresponding frame acceptance of the bid
The location of will modifies the mark.
This programme can not only allow crew more to intuitively understand the situation of locomotive operation route, and pass through marking signal
The relevant information of the surface marks such as machine, may be implemented video rehearsal play in modify corresponding surface mark, can drill it is non-just
Often the case where driving, helps to train the operation of crew horizontal, improve flexible ability, mentioned for train operating safety
Important guarantee is supplied.
Further, in step 2), start time is drilled in driving, it is corresponding that rehearsal video is skipped to rehearsal initial position
Drill video time point.
When rehearsal starts, needs to drill video and skip rehearsal video record initial position to the time for drilling initial position
Section.The travel route for drilling video record is specifically divided into speed interval several different, friction speed according to log
In section, the travel speed of train is considered as constant, and then can simply find out and drill video during drilling video record
The running time in initial position friction speed section into rehearsal initial position is recorded, summation obtains drilling video in rehearsal video
Initial position is recorded to the time of rehearsal initial position, is skipped this period, rehearsal video can arrive pair of rehearsal initial position
Answer video time point.
This method according to the characteristics of train operation (in different road segment segments with different speed per hour constant speed drives), Ke Yijian
It is single efficiently to find out on rehearsal video record initial position to rehearsal video record route on the video time axis of any point
Time difference can make rehearsal since any point on route；Calculation method is simple and reliable simultaneously, and calculation amount, which is significantly smaller than, to be passed through
The method of differential seeks the runing time of variable-speed operation.
Further, it in step 2), is determined in corresponding frame with the following method and indicates location: contained according to first frame
Have the location of mark in the frame image of respective flag, former frame to present frame actual tag relative vehicle it is mobile away from
From and camera lens parameter determine in corresponding frame and indicate present position using lens imaging principle.
It, can be identified in rehearsal video by each marker on rehearsal video record route when drilling video marker
First frame is marked, and label content identifies including the use of image recognition technology and marks out position.Thereafter each to contain correspondence
The frame of marker during rehearsal, is connected to the marker by the position of the principle marking signal mark of lens imaging
Modification instruction will replace new marker in the profile of the label good position on corresponding frame.It is special that this programme is based on train operation
Point (along rail running, the positional relationship variation with marker by track is constant), therefore can be according to lens imaging
Principle is believed based on the location information of first frame marker using the position that formula Continuous plus goes out marker on subsequent frame
Breath, until marker leaves frame picture.This mode is dropped than frame by frame using the method that intelligent algorithm carries out image recognition significantly
Low calculation amount, reduces the requirement to hardware, improves speed and reduce costs.
Further, in step 2), respective flag is modified with the following method: substitution indicia is covered in institute in corresponding frame
State mark present position.
The method of modification respective flag can be to modify the rgb value of the marked region of respective flag on corresponding frame image, from
And the mark of frame image is modified, but this method operand is big, processing and control process are complicated.Directly inserted in corresponding frame image
Enter corresponding new mark, and the method for being covered on correspondence markings region is simple and fast, is handled in video playing to video
The influence of broadcasting is small.
Further, in step 2), according to the frame per second of the rehearsal video, correspondence obtains driving corresponding with the frame per second
Speed；During driving a vehicle rehearsal, the running speed is compared with the analog rate of driving rehearsal: if the driving is fast
Degree is greater than the analog rate, then controls the play frame rate for reducing rehearsal video；If the running speed is less than the simulation speed
Degree then controls the play frame rate for improving rehearsal video.
According to the adjustment during driving rehearsal to speed, the play frame rate of rehearsal video is adjusted, realizes rehearsal view
Frequency is synchronous with driving rehearsal process, and the method for this programme is simple and effective.
Further, in step 2), during driving a vehicle rehearsal, if the play frame rate of rehearsal video is greater than the broadcasting of setting
Frame per second threshold value then controls the play frame rate for reducing the rehearsal video.
When frame per second is excessively high, play frame rate is reduced automatically, avoids the occurrence of Caton phenomenon.
A kind of driving practice device for track train of the invention, including processor and memory, the processor
For executing the instruction of storage in the memory to realize following methods:
Drive a vehicle rehearsal during play rehearsal video, if receive modified logo instruction, according to instruction demand and
The information of label finds frame that need to modify, containing respective flag in rehearsal video, and determines in corresponding frame locating for mark
Position, modify the mark.
Present solution provides a kind of drivings to drill driving simulator, helps to train the operation of crew horizontal, improve
Flexible ability, provides important guarantee for train operating safety.
Further, it is determined in corresponding frame with the following method and indicates location: corresponding mark is contained according to first frame
The location of the mark, former frame to the mobile distance of present frame actual tag relative vehicle and camera shooting in the frame image of will
Machine lens parameters determine in corresponding frame using lens imaging principle and indicate present position.
This programme greatly reduces calculation amount using the method that intelligent algorithm carries out image recognition than frame by frame, reduces to hard
The requirement of part improves speed and reduces costs.
Further, according to the frame per second of the rehearsal video, correspondence obtains running speed corresponding with the frame per second；It is expert at
During vehicle rehearsal, the running speed is compared with the analog rate of driving rehearsal: if the running speed is greater than institute
Analog rate is stated, then controls the play frame rate for reducing rehearsal video；If the running speed is less than the analog rate, control
Improve the play frame rate of rehearsal video.
According to the adjustment during driving rehearsal to speed, the play frame rate of rehearsal video is adjusted, realizes rehearsal view
Frequency is synchronous with driving rehearsal process, and the method for this programme is simple and effective.
Further, during driving a vehicle rehearsal, if the play frame rate of rehearsal video is greater than the play frame rate threshold value of setting,
Then control the play frame rate for reducing the rehearsal video.
When frame per second is excessively high, play frame rate is reduced automatically, avoids the occurrence of Caton phenomenon.
Detailed description of the invention
Fig. 1 is flow chart of the method for the present invention；
Fig. 2 is the schematic illustration of marker location information label of the invention；
Include: in figure semaphore colored lights 1, camera lens 2, position and profile 3 (the semaphore colored lights on frame image f1),
Position and profile 4 (the semaphore colored lights on frame image f2).
Specific embodiment
The present invention will be further described in detail with reference to the accompanying drawing.
Embodiment of the method:
A kind of driving drilling method flow chart for track train of the invention as shown in Figure 1, this method pass through by
Prefabricated rehearsal video is associated with broadcasting with practical driver behavior of the trainee on drive simulating platform, to realize locomotive service on buses or trains
The training of member.
The method for drilling video production:
Step 1: it chooses the representative route for being suitble to training engine drivers in locomotive depot and (such as includes all types
Mark and railway fork), acquire the real scene video of the train actual motion on the route, i.e., using it is fixed be erected at locomotive before
Video of the video camera in portion to front in the locomotive operation that the actual scene in front of locomotive operation is recorded and is obtained.Acquisition
Angular field of view, height of video etc. should be close with the scene that engine drivers in locomotive depot (driver) sees.Train can also be made with suitable
When speed make a special trip to a certain place on above-mentioned route operation to obtain real scene video.
Step 2: video editing.After obtaining real scene video, the video of train collected picture still because of parking is deleted
Segment and other duplicate video clips carry out the multiple video files left after deletion to be spliced to form a video, video
In should have on corresponding route complete, continuous, one-way traffic front picture.
On the other hand, according to the content of log, (need to indicate to include being arranged in track to mark in the video spliced
Other instruction facility, such as speed direction board or semaphore etc., following sections place are replaced upper general with subordinate concept semaphore
Mark is read to illustrate) relevant information and the relevant information of speed etc. be marked, and form tab file.Pass through picture
Or video editing tool, by every section with the frame picture that can be identified first frame in the video clip of semaphore, by manually
Method marks the semaphore, and in the position in frame picture, (position also includes wheel of the corresponding marker in corresponding frame picture
It is wide), in addition the type of the semaphore, the position on route, and to being stored in tab file after the signal serial number.Semaphore institute
The position at place, the type of semaphore, the spacing between unlike signal machine can be by dividing the log on the route
Analysis obtains.In addition, frame per second is associated with the real-time speed at corresponding moment, saves and enter tab file.Tab file can be,
The video finished with shearing has identical time shaft, and record has the relevant information and next signal of continuous speed on time shaft
The relevant information (including distance and number) of machine, record has the relevant information of current demand signal machine (should go out on corresponding time point
Number, the type of semaphore in the frame image at corresponding time point now, if the picture frame is first that semaphore can be identified
Frame then further includes position of the correspondence semaphore of label in present frame picture).
As other embodiments, in this step, the information such as position can also be by using in the type of semaphore, frame image
The image recognition of intelligent algorithm obtains, and is recorded in tab file.
Step 3: the rehearsal video and tab file that editor is finished import drive simulating platform.Drive simulating platform is to copy
The device for being used to drill driving of true locomotive design, including all or part of and true locomotive manipulation machine similar or identical
Structure, with the front visual angle and the visual field of the true locomotive of display screen simulative display.
Rehearsal video is played by synchronization association on a display screen, is imitated to obtain with the forward direction vision for driving true locomotive
Fruit.The broadcasting of so-called synchronization association is exactly, and (such as is accelerated according to the drive simulating data obtained from the operating mechanism of drive simulating platform
The aperture of the operating mechanisms such as switch, brake bar) and tab file in relevant information, by calculate speed relevant information and
Semaphore relevant information carrys out the broadcasting starting point of positioning video file, adjusts the broadcasting speed of video to reach the synchronous of video and close
Radio hookup is put.Obtain visual effect similar with true locomotive is driven.
The specific synchronization association method of rehearsal video is played simultaneously in driving rehearsal:
(1) positioning video broadcast point.
Firstly, determine driving rehearsal route and the route up train drill initial position, driving rehearsal initial position according to
Rehearsal demand determines (such as needing which section route crew is familiar with or practices).The rehearsal video on the route is called to drill with this
Practice the tab file of video (route of route and driving rehearsal i.e. where rehearsal video record is same route).According to label
The location information of semaphore in file obtains the nearest signal serial number in distance driving rehearsal initial position, further according to label text
Vehicle speed information in part obtains different speed intervals and corresponding area among immediate semaphore to driving rehearsal initial position
Between speed and length, train travels at the uniform speed in each speed interval, is found out and is drilled according to the speed of each speed interval and length
Practice in video, train passes through the time of each speed interval, will obtain t by the temporal summation of each speed interval1。
Secondly, the time of rehearsal video time axis is t when vehicle is in immediate semaphore position in rehearsal video0。
On vehicle traffic direction, if immediate semaphore position was at the rear of driving rehearsal initial position at that time, depending on
T=t between the time shaft of frequency broadcast point0+t1；If immediate semaphore position is in driving rehearsal initial position at that time
When the side of front, then T=t between the time shaft of video playing point0-t1。
In this step, using the position of the semaphore closest to driving rehearsal initial position as mark position, likewise,
It can also be using the position of other marks (such as speed direction board etc.) on route as mark position；In addition, mark herein
Will position can also include route initial point position or the final position during drilling video acquisition.On condition that mark (the packet
Include rehearsal video starting point and terminal) it needs in video editing step, it marks its location information and is stored in tab file.Example
Such as, if mark position is start position, in this step, broadcasting initial time T=t that rehearsal video is used to drive a vehicle when drilling1+
t0；Wherein, t1For rehearsal video record initial position to the friction speed section difference time used in driving rehearsal initial position
The sum of；t0It is the rehearsal video in the video time point for recording initial position.
(2) drive simulating data are associated with
From the operating mechanism of drive simulating platform obtain in real time drive simulating data (such as acceleration switch, brake bar etc. behaviour
The aperture of vertical mechanism), in conjunction with other analog informations (such as train weight, track grade, the velocity and acceleration of last moment
Deng) operational analysis formation simulation train operating data.The simulation train operating data mainly includes under simulation train current state
Analog rate and analog acceleration.In addition, synchronizing the relevant information and vehicle for transferring the semaphore for corresponding to the moment in tab file
The relevant information of speed.
(3) feedback regulation rehearsal video playout speed realization is played simultaneously
It is controlled according to broadcasting speed of the analog rate in the operation data of simulation train to rehearsal video, works as broadcasting
When speed is less than analog rate, to accelerate the broadcasting speed of video, when broadcasting speed is greater than analog rate, to reduce view
The speed that frequency plays.
Specifically, obtaining corresponding to the moment on time shaft in rehearsal video according to the speed relevant information in tab file
(namely a certain specific location on driving rehearsal route.Because rehearsal video is unidirectional continuous traveling video recording, the time in video is drilled
Specific moment or time point on axis correspond with the specific location on corresponding route) inter-related association speed and video
Frame per second, in driving rehearsal simulating driving procedure, the sometime point in the rehearsal video being played simultaneously is (a certain i.e. on route
Position), if the analog rate obtained at the time point is greater than the association speed at the time point, select to correspond to according to speed difference
Proportionate relationship, by the video frame rate at the time point according to selection proportionate relationship amplify, the result of amplification is as the time point
Play frame rate；Conversely, then according to same standard according to speed difference selection percentage relationship, and according to the proportionate relationship of selection
Reduce the play frame rate of the video frame rate as the time point at the time point.
As other embodiments, pair between speed and play frame rate can also be found out according to test of many times and calculating
It should be related to, such as 1km/h is span, the maximum speed from 0km/h to train operation, every first-order rate all corresponds one and broadcast
Put frame per second, frame per second is 0 frame/second, i.e. video pause picture still when 0km/h.According in being played simultaneously sometime point obtain
The play frame rate for drilling video is adjusted to the corresponding play frame rate of the analog rate by analog rate.
When frame per second is excessively high, is greater than given threshold, play frame rate is reduced automatically, avoids the occurrence of Caton phenomenon.
(4) semaphore colored lights in video is replaced
During driving a vehicle rehearsal, in order to train crew to the understanding and strain of semaphore colored lights, need to broadcast to synchronizing
The rehearsal video put carries out the replacement of semaphore colored lights and changes colour, and creates different emergency cases or route situation.
The realization of the step mainly uses DirectShow technology.
Step 1 reads video by source filter.
Step 2 decompresses video using Transform Filters, is then decoded video, according to instruction
The semaphore colored lights of reference numeral, type is carried out covering to change colour, the signal colored lights figure layer being newly inserted into is believed according in tab file
The number of number machine, type information, find out corresponding frame picture, are finally inserted the correspondence position that new colored lights is covered in corresponding frame picture
It sets, and covers corresponding profile.
Specific amending method can use lens imaging principle, specific as shown in Fig. 2, including semaphore colored lights 1, camera shooting
Machine camera lens 2, n-th frame frame image f1, the (n+1)th frame frame image f2；When n-th frame, semaphore colored lights 1 is relative to camera lens 2
In the position a1 away from camera lens d1 distance；When the (n+1)th frame, semaphore colored lights 1 is located at relative to camera lens away from camera shooting
The position a2 of machine camera lens d2 distance.The position of the picture of known signal machine colored lights 1 and profile 3 on f1 frame image, then directly according to right
The new semaphore colored lights in 3 inserting instruction of position and profile is answered to cover the semaphore colored lights 1 replaced in n-th frame frame image
Picture.New semaphore colored lights is such as inserted into the (n+1)th frame.When obtaining n-th frame according to tab file first, camera lens 2 (or
Locomotive) distance signal machine colored lights 1 actual range d1 and the (n+1)th frame when, 2 distance signal machine colored lights 1 of camera lens away from
From d2；Then according to the position of the picture of semaphore colored lights 1 known on n-th frame frame image and profile 3 and semaphore colored lights 1
Actual height H obtained when the (n+1)th frame where semaphore colored lights 1 and 2 center of camera lens by video camera imaging principle
Straight line L1；The point of focal length of camera point and semaphore colored lights 1 in video recorder is obtained according to the focal length parameter of camera lens
The straight line L2 at place；The intersection point of two straight lines of L1 and L2 is finally calculated, semaphore colored lights on you can get it n+1 frame time frame image
1 position and profile 4 in the picture covers replacement according to the new semaphore colored lights in 4 inserting instruction of corresponding position and profile
Fall the picture of the semaphore colored lights 1 in the (n+1)th frame frame image.
In the rehearsal video production process of the present embodiment, label marker position information, which is only marked, occurs the of each mark
One frame, according to, then by above-mentioned lens imaging principle, being identified backward when instruction modification respective flag during driving rehearsal
The position for the mark on each frame that the mark occurs.It, can also be in rehearsal video production process as other embodiments
It is middle each frame indicated occur by image recognition or the label of artificial method progress respective flag position, or in rehearsal view
There is the first frame of each mark in label in frequency manufacturing process, the position that respective flag occurs on each frame that the mark occurs backward
It sets and calculates and be marked by lens imaging principle.
The method of modified logo is the new mark of insertion in the present embodiment, is covered to the position of respective flag label.
As other embodiments, the rgb value of pixel on the position for the respective flag for marking or identifying can also be corresponded to
Modification makes corresponding frame image show the new mark in instruction.
After step 3 completes the replacement of semaphore colored lights, which is able to carry out display by rendering Filter.
In the present embodiment, mainly it is specifically described using semaphore especially light signal as specific mark, this
Field technical staff it should be understood that in addition to semaphore, Along Railway be also possible that other Warning Marks, direction board or other
The semaphore of type.Other mark, direction board or semaphores under recording in rehearsal video are using editor's labeling method of the invention
And corresponding marker replacement in driving rehearsal also may be implemented in replacement marker method.For the concrete type of mark,
The present embodiment does not limit.
The invention particularly discloses a kind of sides that realization track train driving rehearsal is played using driving audio video synchronization association
Then method carries out the video of acquisition deleting splicing, and according to fortune by the information collection video to locomotive operation route
Row record carries out speed, the relevant information such as route sign is marked, then by data information mark and the view spliced
Frequency imports in drive simulating platform, and the last data information according to the analog information and label that obtain from drive simulating platform passes through
Calculating speed change information modifies instruction with response signal mark and realizes that audio video synchronization is associated with broadcasting.The present invention can not only basis
The analog information of acquisition directly watches the actual state of live route, and crew is made preferably to learn and drill to a certain extent
Practice line conditions, the environment of variation or improper driving can be especially provided for crew, help to improve the training of crew
Effect is instructed, various emergency events is coped in time, important guarantee is provided for train operating safety.
Installation practice:
In order to realize a kind of driving drilling method for track train of above-mentioned introduction, a kind of device is now accordingly provided,
The device includes processor and memory.Instruction is stored in memory, it is real when executing the instruction in memory in processor
The specific synchronization association method of rehearsal video is played simultaneously in existing above-mentioned driving rehearsal.To the introduction of method in embodiment of the method
" the specific synchronization association method of rehearsal video is played simultaneously in driving rehearsal " part introduced it is clear, it is no longer superfluous in the present embodiment
It states.
Claims (10)
1. a kind of driving drilling method for track train, which comprises the steps of:
1) information of each mark in rehearsal video is marked；The information of label includes the locating frame of mark, mark one
The location of in frame；
2) the rehearsal video is used to drive a vehicle rehearsal, during driving a vehicle rehearsal, if receiving modified logo instruction, root
According to the information of label, frame that need to modify, containing respective flag is found in rehearsal video, and is determined in corresponding frame and indicated institute
The mark is modified in the position at place.
2. the driving drilling method according to claim 1 for track train, which is characterized in that in step 2), be expert at
Vehicle drills start time, and rehearsal video is skipped to the corresponding rehearsal video time point in rehearsal initial position.
3. the driving drilling method according to claim 2 for track train, which is characterized in that in step 2), use
Following method determines the location of to be indicated in corresponding frame: locating for containing the mark in the frame image of respective flag according to first frame
Position, the former frame distance and camera lens parameter mobile to present frame actual tag relative vehicle, utilize lens imaging
Principle determines in corresponding frame and indicates present position.
4. the driving drilling method according to claim 3 for track train, which is characterized in that in step 2), use
Following method modifies respective flag: substitution indicia being covered in described in corresponding frame and indicates present position.
5. the driving drilling method according to claim 1 for track train, which is characterized in that in step 2), according to
The frame per second of the rehearsal video, correspondence obtain running speed corresponding with the frame per second；During driving a vehicle rehearsal, by the row
Vehicle speed is compared with the analog rate of driving rehearsal: if the running speed is greater than the analog rate, controlling reduction
Drill the play frame rate of video；If the running speed is less than the analog rate, the broadcasting frame for improving rehearsal video is controlled
Rate.
6. the driving drilling method according to claim 1 for track train, which is characterized in that in step 2), be expert at
During vehicle rehearsal, if the play frame rate of rehearsal video is greater than the play frame rate threshold value of setting, controlling reduces the rehearsal view
The play frame rate of frequency.
7. a kind of driving practice device for track train, which is characterized in that including processor and memory, the processor
For executing the instruction of storage in the memory to realize following methods:
Rehearsal video is played during driving a vehicle rehearsal, if modified logo instruction is received, according to instruction demand and label
Information, need to modify, frame containing respective flag is found in rehearsal video, and determine in corresponding frame and indicate locating position
It sets, modifies the mark.
8. the driving practice device according to claim 7 for track train, which is characterized in that with the following method really
Surely it corresponds to and the location of indicates in frame: is the location of mark in the frame image for containing respective flag according to first frame, preceding
One the frame distance and camera lens parameter mobile to present frame actual tag relative vehicle are determined using lens imaging principle
Indicate present position in corresponding frame.
9. the driving practice device according to claim 7 for track train, which is characterized in that regarded according to the rehearsal
The frame per second of frequency, correspondence obtain running speed corresponding with the frame per second；During driving a vehicle rehearsal, by the running speed and row
The analog rate of vehicle rehearsal is compared: if the running speed is greater than the analog rate, controlling reduces rehearsal video
Play frame rate；If the running speed is less than the analog rate, the play frame rate for improving rehearsal video is controlled.
10. the driving practice device according to claim 7 for track train, which is characterized in that drilled in driving
Cheng Zhong controls the broadcasting for reducing the rehearsal video if the play frame rate of rehearsal video is greater than the play frame rate threshold value of setting
Frame per second.
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