CN104967829A - High-speed train video assistance driving system - Google Patents
High-speed train video assistance driving system Download PDFInfo
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- CN104967829A CN104967829A CN201510414364.9A CN201510414364A CN104967829A CN 104967829 A CN104967829 A CN 104967829A CN 201510414364 A CN201510414364 A CN 201510414364A CN 104967829 A CN104967829 A CN 104967829A
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Abstract
The invention provides a high-speed train video assistance driving system. By using the system, a problem that hazy weather influences normal operation of a high-speed train is solved. A scheme is characterized in that video assistance driving equipment installed on the high-speed train and a video analysis system installed on the ground are included; camera shooting acquisition equipment is connected to a video data processing unit; the video data processing unit is connected to a data recording unit; the video data processing unit is connected to a driver monitoring terminal; the camera shooting acquisition equipment, the video data processing unit, the data recording unit and the driver monitoring terminal are connected to a power supply unit. In the invention, a photosensitive sensor with high-speed ultra-low illumination and super-wide tendency is adopted; simultaneously through-frog processing is performed on image information so that the driver monitoring display terminal displays clear and reliable images; characteristic image identification is auxiliary added so as to assist driver driving. The system of the invention possesses data compression and storage functions. When data analysis is performed, positioning retrieval can be performed on the video.
Description
Technical field
The present invention relates to the train system video auxiliary driving analytical system in processing system for video and Train Control Technology field, particularly a kind of bullet train.
Background technology
In recent years, the high speed development of China's economic, high-speed railway is also thereupon fast-developing, the raising of speed, railway bed evenness is improved a lot, for adapting to the requirement in railway speed, crossing tunnel, mountain and getting more and more, making bullet train when access tunnel, light change in the driver visual field is violent, the high-speed mobile of train simultaneously, light and shade period of change is short, makes driver be difficult to adapt to the strong change of extraneous light.
And recent years, economic fast development, has greater environmental impacts, air pollution is also on the rise, air problem has become the topic that everybody must talk, and also becomes the problem that everybody worries most, along with the sternness of Chinese haze weather, the visual field that people see is dim, visible sensation distance serious curtailment, also has a strong impact on the normal operation of bullet train, if once there is haze weather simultaneously, also certainly will cause monitoring blind area, bring hidden danger to the security of operation of railway.
Video DAS (Driver Assistant System) is by front end photosensitive sensor high-speed sampling, utilize the Rapid Variable Design of the dynamic transducer of ultra-low illumination, ultra-wide, FPGA is used to detect in real time each frame data, Penetrating Fog processing process is carried out to image, make on driver monitoring display terminal, show reliable useful interface, auxiliary driver driving.
Namely the general principle of ultra-low illumination shooting changes the signal of telecommunication into optical image signal, if signal is very weak, then amplified by pre-arcing road, then carry out processing and adjusting through various circuit, finally obtain standard signal deliver to again rear end carry out coding display record etc.
Ultra-wide is dynamically under contrast strongly, video camera is allowed first to carry out an instantaneous exposure to illuminated area, obtain a clear normal image in width highlights region and be stored in Data Buffer Memory, and then a slow is carried out to dark portion region in scene, obtain a width dark portion regional display clearly image be also stored in Data Buffer Memory, more than after exposure, utilize distinctive image processing algorithm, part suitable for brightness in the middle of two width images is cut down respectively, finally carry out superposition synthesize and export an all apparent image in width light and shade region.
Penetrating Fog principle refers to that visible ray is when by the flue dust in air or fog, can be launched by stop and cannot pass through, and near infrared light due to wavelength longer, flue dust and fog can be walked around and penetrate over, and the photo-sensitive cell of video camera can sense this part near infrared light, so just this part light can be utilized realize the monitoring of wearing dirt Penetrating Fog, in the scope of invisible light, the infrared light of certain frequency is had to penetrate fog, need at video camera and the enterprising row relax of camera lens, the invisible light of this frequency is used for carry out imaging, final acquisition is monitoring image picture clearly.
Summary of the invention
For above-mentioned situation, for overcoming the defect of prior art, the object of the present invention is to provide a kind of bullet train video DAS (Driver Assistant System), efficiently solves the problem that haze weather affects the normal operation of bullet train.
Its technical scheme solved is, comprise and be arranged on video assistant equipments on board on bullet train and surface-based video analytic system, the described video assistant equipments on board be arranged on bullet train comprises shooting collecting device, video data processing element, data record unit, driver monitoring terminal and power subsystem, described shooting collecting device is connected with video data processing element, video data processing element is connected with data record unit, video data processing element is connected with driver monitoring terminal, shooting collecting device, video data processing element, data record unit, driver monitoring terminal is all connected with power subsystem,
Surface-based video analytic system comprises UPS uninterrupted power supply, exchanges data transmission unit, Data Analysis Services unit, Database Systems RMDB and display terminal, exchanges data transmission unit receives the video information of data record unit in the video assistant equipments on board be arranged on bullet train, exchanges data transmission unit is connected with Data Analysis Services unit, Data Analysis Services unit is connected with Database Systems RMDB, Data Analysis Services unit is all connected display terminal with Database Systems RMDB, exchanges data transmission unit, Data Analysis Services unit, Database Systems RMDB and display terminal are all connected with UPS uninterrupted power supply.
The present invention adopts the dynamic photosensitive sensor of high speed ultra-low illumination, ultra-wide, carries out Penetrating Fog processing process simultaneously, make driver monitoring display terminal to show more clear reliable image to image information; And the identification of auxiliary increase characteristic image, as front height post lamp code information identification, disconnected splice grafting net-fault information identification etc., complete auxiliary driver driving; The present invention also has the function of data compression, storage, when carrying out data analysis, can position retrieval to video.
Accompanying drawing explanation
Fig. 1 is video assistant equipments on board structure of the present invention composition schematic diagram.
Fig. 2 is video analytic system structure of the present invention composition schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Shown in existing composition graphs 1 and Fig. 2, a kind of bullet train video of the present invention DAS (Driver Assistant System), comprise and be arranged on video assistant equipments on board on bullet train and surface-based video analytic system, the described video assistant equipments on board be arranged on bullet train comprises shooting collecting device, video data processing element, data record unit, driver monitoring terminal and power subsystem, described shooting collecting device is connected with video data processing element, video data processing element is connected with data record unit, video data processing element is connected with driver monitoring terminal, shooting collecting device, video data processing element, data record unit, driver monitoring terminal is all connected with power subsystem,
Surface-based video analytic system comprises UPS uninterrupted power supply, exchanges data transmission unit, Data Analysis Services unit, Database Systems RMDB and display terminal, exchanges data transmission unit receives the video information of data record unit in the video assistant equipments on board be arranged on bullet train, exchanges data transmission unit is connected with Data Analysis Services unit, Data Analysis Services unit is connected with Database Systems RMDB, Data Analysis Services unit is all connected display terminal with Database Systems RMDB, exchanges data transmission unit, Data Analysis Services unit, Database Systems RMDB and display terminal are all connected with UPS uninterrupted power supply.
Described shooting collecting device is arranged on bullet train transparent part for front sight place, and when train operation, shooting collecting device carries out IMAQ in real time to front.
Described power subsystem adopts vehicle-mounted DC110V, for the video assistant equipments on board be arranged on bullet train provides electric energy, avoids the external interference such as surge, burst of pulses, high-frequency crosstalk simultaneously, ensures the high reliability of Electro Magnetic Compatibility.
Described video data processing element uses and H.264 encodes, and the data volume of generation per minute is about 10MB.
Described data record unit uses 32GB memory cell, adopts cycle index mode, can preserve 48 hours video datas.
Before described shooting collecting device is arranged on bullet train transparent part for front sight, shooting collecting device resolution is 720P@30FPS, gather head end video image information, respond to extraneous light intensity, automatically control adjustment aperture and time for exposure, use high speed ultra-low illumination ccd image sensor, be operated on 60FPS, at every turn automatic respectively exposure sampling is carried out to highlights and low light level district, all obtain two width pictures, carry out superposition synthesis by the rear end of shooting collecting device.
Video data processing element uses FPGA, FPGA to carry out mist elimination, denoising to each frame video signal, and Video processing maximum delay is 30ms, and when the speed per hour of bullet train is 310Km/h, driver monitoring terminal demonstration bullet train is advanced about 2.8m; When bullet train speed per hour is 80Km/h, driver monitoring terminal demonstration bullet train is advanced about 0.77m; When bullet train speed per hour is lower than 40Km/h, driver monitoring terminal demonstration train is advanced and is less than 0.3m.
Video data processing element uses FPGA cutting down part suitable for brightness in the two width pictures obtained respectively, finally carry out superposition synthesize and export an all apparent image in width light and shade region, composograph is made to be operated on 30FPS, when outside air quality is bad, the real-time computed image effect of FPGA, whether automatic analysis image has mist or steam, dust, dirty etc. abnormal and open the Penetrating Fog pattern preset in real time, the shooting collecting device controlling to be arranged on the transparent part for front sight place of bullet train is by selectively allowing the light transmission of some special wave band, digital image enhancement system and optics Penetrating Fog system are carried out intelligent linkage, obtain image quality more better than common lens, ensure the thoroughly clear of image.
Image information after the compression of data record unit recording processing addition record video data processing element receives bullet train mileage information, so that when doing subsequent analysis, retrieval can be positioned to video, when having driver and conductor to get off, take data record unit to ground.
Image after process is presented to driver by driver monitoring terminal in real time, and the identification of auxiliary increase characteristic image, as front height post lamp code information identification, disconnected splice grafting net-fault information identification etc., complete auxiliary driver driving.
Power subsystem uses vehicle-mounted DC110V power supply, and for bullet train video DAS (Driver Assistant System) provides electric energy, protection system is from external interference such as surge, burst of pulses, high-frequency crosstalks simultaneously, ensures the high reliability of system EMC.
Data record unit is taken back ground by driver and conductor, and import in ground video analytical system by exchanges data transmission unit by image information, image information is transferred to Data Analysis Services unit by exchanges data transmission unit; The track foundation information that Data Analysis Services unit travels in conjunction with bullet train analyzes the image information received, produce the operate original language of database, and the image information after process is transferred to Database Systems RMDB and stores, be convenient to the inquiry of user to historical data.
Operation principle of the present invention: bullet train video DAS (Driver Assistant System) is made up of the video assistant equipments on board be arranged on bullet train and surface-based video analytic system, shooting collecting device in video assistant equipments on board is arranged on bullet train transparent part for front sight place, when train operation, in real time IMAQ is carried out to front, and image information is transferred to video data processing element, after image information after process is carried out effect enhancing by video data processing element, by driver monitoring terminal demonstration, image information is carried out H.264 compression coding simultaneously, increase bullet train mileage information, so that during post analysis, position retrieval, image information after coding will be kept at data record unit, when driver and conductor gets off, data record unit is taken back ground, access in surface-based video analytic system, by exchanges data transmission unit, image information is imported in video analytic system, by Data Analysis Services unit by image information in conjunction with electronic chart by after image information analysis, form database manipulation primitive, record the information in video service data storehouse, display terminal passes through operation and the mandate of ground service analyst, read image analysis data, the image information data of record is shown at display terminal.
The present invention adopts the dynamic photosensitive sensor of high speed ultra-low illumination, ultra-wide, carries out Penetrating Fog processing process simultaneously, make driver monitoring display terminal to show more clear reliable image to image information; And the identification of auxiliary increase characteristic image, as front height post lamp code information identification, disconnected splice grafting net-fault information identification etc., complete auxiliary driver driving; The present invention also has the function of data compression, storage, when carrying out data analysis, can position retrieval to video.
Claims (5)
1. bullet train video DAS (Driver Assistant System), comprise and be arranged on video assistant equipments on board on bullet train and surface-based video analytic system, it is characterized in that, the described video assistant equipments on board be arranged on bullet train comprises shooting collecting device, video data processing element, data record unit, driver monitoring terminal and power subsystem, described shooting collecting device is connected with video data processing element, video data processing element is connected with data record unit, video data processing element is connected with driver monitoring terminal, shooting collecting device, video data processing element, data record unit, driver monitoring terminal is all connected with power subsystem,
Surface-based video analytic system comprises UPS uninterrupted power supply, exchanges data transmission unit, Data Analysis Services unit, Database Systems RMDB and display terminal, exchanges data transmission unit receives the video information of data record unit in the video assistant equipments on board be arranged on bullet train, exchanges data transmission unit is connected with Data Analysis Services unit, Data Analysis Services unit is connected with Database Systems RMDB, Data Analysis Services unit is all connected display terminal with Database Systems RMDB, exchanges data transmission unit, Data Analysis Services unit, Database Systems RMDB and display terminal are all connected with UPS uninterrupted power supply.
2. bullet train video DAS (Driver Assistant System) according to claim 1, is characterized in that, described shooting collecting device is arranged on bullet train transparent part for front sight place.
3. bullet train video DAS (Driver Assistant System) according to claim 1, it is characterized in that, described power subsystem adopts vehicle-mounted DC110V, for the video assistant equipments on board be arranged on bullet train provides electric energy.
4. bullet train video DAS (Driver Assistant System) according to claim 1, is characterized in that, described video data processing element uses and H.264 encodes.
5. bullet train video DAS (Driver Assistant System) according to claim 1, is characterized in that, described data record unit uses 32GB memory cell, adopts cycle index mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510414364.9A CN104967829B (en) | 2015-07-15 | 2015-07-15 | Bullet train video DAS (Driver Assistant System) |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510414364.9A CN104967829B (en) | 2015-07-15 | 2015-07-15 | Bullet train video DAS (Driver Assistant System) |
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| CN104967829A true CN104967829A (en) | 2015-10-07 |
| CN104967829B CN104967829B (en) | 2018-04-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105704372A (en) * | 2016-01-28 | 2016-06-22 | 武汉光庭科技有限公司 | A vehicle-mounted high-dynamic-range image synthetic method |
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| CN101064042A (en) * | 2006-04-29 | 2007-10-31 | 昆明钏泽智能***有限公司 | Vehicle mounted system for monitoring traffic accident |
| CN102538762A (en) * | 2012-01-10 | 2012-07-04 | 广州科易光电技术有限公司 | Online inspection device of high-speed railway contact network and inspection method of online inspection device as well as high-speed rail contact network detection system formed by online inspection device |
| CN104442924A (en) * | 2014-11-05 | 2015-03-25 | 杭州南车城市轨道交通车辆有限公司 | All-weather high speed railway vehicle-mounted obstacle detection system and method |
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2015
- 2015-07-15 CN CN201510414364.9A patent/CN104967829B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101064042A (en) * | 2006-04-29 | 2007-10-31 | 昆明钏泽智能***有限公司 | Vehicle mounted system for monitoring traffic accident |
| CN102538762A (en) * | 2012-01-10 | 2012-07-04 | 广州科易光电技术有限公司 | Online inspection device of high-speed railway contact network and inspection method of online inspection device as well as high-speed rail contact network detection system formed by online inspection device |
| CN104442924A (en) * | 2014-11-05 | 2015-03-25 | 杭州南车城市轨道交通车辆有限公司 | All-weather high speed railway vehicle-mounted obstacle detection system and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105704372A (en) * | 2016-01-28 | 2016-06-22 | 武汉光庭科技有限公司 | A vehicle-mounted high-dynamic-range image synthetic method |
| CN105704372B (en) * | 2016-01-28 | 2019-05-03 | 武汉光庭科技有限公司 | Vehicle-mounted high dynamic-range image synthesis method |
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| CN104967829B (en) | 2018-04-10 |
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Address after: 450000 63 Duan street, hi tech Industrial Development Zone, Zhengzhou, Henan Patentee after: Henan blue letter Technology Co., Ltd. Address before: 450000 Cui bamboo street, Zhengzhou hi tech Zone, Henan Province, No. 6 Patentee before: Henan Lan Xin Science and Technology Co., Ltd. |
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