CN101898567B - Railway foreign body limit-intruding monitoring system based on intelligent video - Google Patents
Railway foreign body limit-intruding monitoring system based on intelligent video Download PDFInfo
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- CN101898567B CN101898567B CN2010101411328A CN201010141132A CN101898567B CN 101898567 B CN101898567 B CN 101898567B CN 2010101411328 A CN2010101411328 A CN 2010101411328A CN 201010141132 A CN201010141132 A CN 201010141132A CN 101898567 B CN101898567 B CN 101898567B
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Abstract
The invention discloses a railway foreign body limit-intruding monitoring system based on an intelligent video, comprising an on-site monitoring subsystem (1), an on-board alarm subsystem (2), a data transmission subsystem (3) and a monitoring center subsystem (4). The on-site monitoring subsystem (1) comprises a video camera (11) and a foreign body limit-intruding monitoring terminal (12), wherein the monitoring center subsystem (4) is an information processing center of the system and comprises a monitoring center server end (41) and a monitoring center client end (42), and the on-board alarm subsystem (2) mainly comprises an on-board alarm terminal (21) taking charge of receiving alarm information sent by the on-site monitoring subsystem and sending out alarm prompts to vehicles. The invention has the advantages of intuitive monitoring, great range and strong monitoring capability and is particularly suitable for high-speed railways to lessen the occurrence of safety accidents.
Description
Affiliated technical field
The present invention relates to a kind of railway foreign body intrusion carried out the railway anti-disaster safety monitoring system of monitoring, alarming, especially a kind of railway foreign body limit-intruding monitoring system based on intelligent video analysis and wireless communication technology.
Background technology
Along with the fast development of high speed railway construction, train running speed improves constantly, and the requirement of train operating safety is also improved constantly.The train braking distance of speed per hour more than 200 kilometers approximately needs 2 kilometers, and this moment, iff relied on the visual foreign matter of finding in the circuit of driver, can't in time take brake measure, thereby cause great train operation accident.Because the foreign body intrusion incident has sudden, irregular following and characteristics such as unpredictable; Need sophistication monitoring foreign body intrusion incident; Before the limit place is invaded in train arrival, send warning, control train deceleration or parking guarantee train operating safety.
Chinese patent CN200820148978.2 has proposed a kind of foreign body intrusion monitoring device based on the monitoring electrical network, and this device has been realized the foreign body intrusion state of real-time monitoring specific region.But this monitoring method has following shortcoming: 1, need to cooperate grille guard work, maintenance workload is big, needs application to put in a skylight the time; 2, detection range is little, can only detect the scope that monitoring net covers, and is fit to the monitoring in zone undetermined, and is not suitable for the monitoring of railway main track; 3, can't detect the junk elongated, that quantity is big; 1, can't detect the foreign matter that has fallen into track.
Utilize traditional video monitoring methods also can realize the monitoring of foreign body intrusion, but it have following shortcoming: 1, to need special supervision personnel to stare at screen for a long time and observe whether foreign body intrusion is arranged, be easy to generate visual fatigue and fail to report alert incident; 2, when the control point is many,, need to drop into a large amount of personnel's screens owing to the content that a people can see is limited; 3, all video is all passed monitoring and control centre back and need be taken a large amount of bandwidth; 4, alarm message is not in time informed train, the driver can't in time take counter-measure.
To the problems referred to above; The present invention proposes a kind of based on the intelligent video analysis technology; Through analysis and judgement to real-time video; Automatically judge various foreign body intrusion incidents, and alarm message is sent to simultaneously the railway foreign body limit-intruding monitoring system of train operator and monitoring and control centre through wireless communication technology.
Summary of the invention
The objective of the invention is to; Overcome the deficiency of above-mentioned prior art; A kind of foreign body limit-intruding monitoring system based on intelligent video is provided: the first, this system is the monitoring circuit video in real time, and whether automatic analysis and judgment has the foreign body intrusion incident to take place; All collections and judging part carry out at front monitoring front-end, need not manual intervention; Second; When foreign body intrusion takes place; Can automatically produce alarm message according to the alarm rule of setting, and alarm message is superimposed upon on the image sends it back monitoring and control centre through wired or wireless network, the monitoring and control centre client ejects automatically the control point picture of reporting to the police takes place; The 3rd, the alarm message of generation sends near the train the control point through wireless network simultaneously, and informs that through voice suggestion the train operator takes appropriate measures; The 4th, the alarm linkage function is provided, when the generation of warning is arranged, can trigger memory storage or other interlocking equipment simultaneously.
The objective of the invention is to realize through following means.
Based on the railway foreign body limit-intruding monitoring system of intelligent video, form by on-site supervision subsystem 1, vehicle carried subsystem 2, data transmission subsystem 3, monitoring center's subsystem 4.Wherein, on-site supervision subsystem 1 is made up of pick up camera 11 and foreign body intrusion monitoring terminal 12; Monitoring center's subsystem 4 comprises monitoring center's service end 41 and monitoring center's client 42; Vehicle carried subsystem 2 mainly is made up of vehicle carried terminal 21, be responsible for to receive alarm message that the on-site supervision subsystem sends and sends alarm to locomotive.
Principle of work of the present invention is: through pick up camera 11 acquisition monitoring point real-time video information; Adopt the intelligent video analysis technology by foreign body intrusion monitoring terminal 12; Automatically the key message in analysis and the extraction video source is discerned judgement to foreign body intrusion, then the alarm message that generates is superimposed upon on the image; Deliver to video encoding module and carry out compressed encoding; Report to monitoring and control centre through transmission subsystem 3 at last, the monitor staff can make further judgement according to graphicinformation and alarm message, takes appropriate measures.Simultaneously, the alarm message that is generated by foreign body intrusion monitoring terminal 12 transfers to vehicle carried terminal 21 through wireless-transmission network, and vehicle carried terminal sends the audio alert prompting according to alarm content to the driver.
After adopting design as above, beneficial effect of the present invention mainly shows:
1, monitoring is directly perceived, and scope is big.Because native system is based on the monitoring of video, the monitor staff can retrieve for examination the monitoring image scene as required at any time, and therefore monitoring is directly perceived, and coverage is big, and the regional portion in the camera field of view scope is in the native system monitoring range;
2, monitoring efficient is high.Native system can be judged the generation of foreign body intrusion according to alarm rule automatically based on the intelligent video analysis technology, does not need the monitor staff to dig-in screen always, and the monitor staff only need confirm to get final product when system alarm.Avoided the monitor staff to cause fatigue to reduce attention, improved the effect of monitor staff's actual monitored because of watching screen for a long time;
3, monitoring capacity is strong.The intelligent vision analytical technology can identify the slight change that human eye can't be differentiated, and for example intrusion behavior and the threat under remote distance, insufficient light, low contrast, environment camouflage or the like situation fallen into the foreign matter of track etc.;
4, working service is easy.Because native system is a kind of contactless detection, check implement does not have loss, reduces maintenance cost;
5, save bandwidth.Only, saved transmission bandwidth greatly, under the comparable bandwidths condition, can hold more multi-path monitoring at the alarm rule just transmission of video that is triggered;
6, alarm message can realize transferring to automatically near the train monitoring point through wireless communication technology, and sends alarm according to warning classification and alarm level to the train operator, and the train operator can in time take counter-measure, the generation of minimizing safety misadventure;
7, the local memory cell of headend equipment can keep the on-the-spot Video Document of monitoring, is convenient to relevant departments' law enforcement and analyzes;
8, highly integrated.Based on the complete embedded intelligence visual analysis of DSP, all monitoring judgements all realize at front monitoring front-end, do not need the external software support, need not manual intervention.
Description of drawings
Fig. 1 is a structured flowchart of the present invention.
Fig. 2 is a foreign body intrusion monitoring terminal structured flowchart of the present invention.
Fig. 3 is a vehicle carried terminal structured flowchart of the present invention.
Fig. 4 is a monitoring and control centre service end structured flowchart of the present invention.
Fig. 5 is a monitoring and control centre client terminal structure block diagram of the present invention.
Fig. 6 is a foreign body intrusion monitoring terminal workflow diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Structured flowchart as shown in Figure 1, on-site supervision subsystem 1, vehicle carried subsystem 2, data transmission subsystem 3, monitoring center's subsystem 4.
On-site supervision subsystem 1 is made up of pick up camera 11 and foreign body intrusion monitoring terminal 12; Be responsible for the on-the-spot realtime graphic of acquisition monitoring; And foreign body intrusion judged identification, when the foreign body intrusion situation takes place, produce alarm message; Be superimposed upon and be sent to monitoring and control centre on the image together, simultaneously alarm message is sent near the train the monitoring point.
Pick up camera 11 comprises camera, The Cloud Terrace and infrared illuminator.The structured flowchart of foreign body intrusion monitoring terminal 12 is as shown in Figure 2, specifically comprises: video acquisition module 121, analysis module 122, video encoding module 123, local memory module 124, alarm linkage interface 125, car-ground radio coffret 126, network communication interface 127.Video acquisition module 121 links to each other with pick up camera 11 through video line, and the analog video signal that pick up camera 11 is gathered carries out digitized processing, and 122 pairs of video scenes of analysis module carry out analyzing and processing; Distinguish moving target and judge whether the behavior of target meets preset alert if; When alert if satisfies, produce alarm message, and the total image of alarm signal that will superpose is sent into video encoding module 123; 123 pairs of videos of video encoding module carry out compressed encoding; Video flowing after the compression is sent to monitoring and control centre through network communication interface 127 on the one hand, delivers to local memory module 124 on the other hand and preserves, in order to verification afterwards.
Further, when analysis module 122 judges that alert if satisfy, also alarm message is sent into car-ground radio coffret 126, alarm message is sent near the train the monitoring point through car-ground radio coffret 126.Further, when report to the police taking place, also exportable alerting signal is to alarm linkage interface 125, link to control external device (like the opening signal lamp etc.).
The workflow of foreign body intrusion monitoring terminal is as shown in Figure 6, specifically describes as follows:
Step 1: the video that video acquisition module 121 acquisition monitorings are on-the-spot, the digitized of going forward side by side is handled;
Step 2: 122 pairs of video informations of analysis module carry out analyzing and processing, judge whether to meet preset alert if according to alarm rule, satisfy if judge alert if, then get into next step, otherwise proceed to gather and analyze;
Step 3: if judgement is reported to the police, then generate alarm message, comprise warning classification, alarm level and monitoring point numbering etc. according to alarm rule.And handle as follows:
Step 3.1: the alarm message that generates is superimposed upon on the video pictures and delivers to video encoding module 123;
Step 3.2: if disposed the car-ground radio transport module, then the alarm message that generates is delivered to car-ground radio coffret 126, transfer near the train the control point through car-ground radio coffret 126;
Step 3.2: if disposed alarm linkage, then produce the alarm linkage control signal, deliver to alarm linkage interface 125;
Step 4: 123 pairs of videos of video encoding module carry out compressed encoding, and the video flowing behind the coding is divided into two-way, and one the road delivers to local memory module 124, and the network communication interface 127 of leading up to is sent to monitoring and control centre.
Be used in the step 2 alarm rule user that foreign body intrusion differentiates be provided with according to actual needs below a kind of or its combinations of several kinds of dissimilar alarm rule:
1) trip wire passes through warning: invade to pass through when people, animal or other foreign matter and send warning when stumbling line automatically.This alarm rule is set the line of stumbling of one or more arbitrary shape, can also specify the illegal direction (two unidirectional or two-way) of passing through the line of stumbling to each bar line of stumbling.When detecting with the trip wire pattern of passing through, will be left in the basket in the target of the line parallel direction motion of stumbling, only pass through and send warning when stumbling line when target.This detecting pattern is applicable to the intrusion detection of some specific occasion, for example climbs up and over enclosure wall, passes through security checkpoints, railroad crossing safety circumference etc.
2) fence intrusion alarm: aim to detect and climb up and over the quick configuration modes that behavior provided such as (or passing through) circumference and fence.This alarm rule is set together or the virtual fence of multiple tracks arbitrary shape, and the length of each virtual fence in road, height and thickness can independently be provided with, and can specify the illegal direction (two unidirectional or two-way) of climbing up and over (or passing through) certain virtual fence in addition.When climbing up and over (or passing through) fence on the illegal direction, the invader will trigger warning automatically when (comprise below fence and get over, pass through or climb up and in the middle of the fence slit) from the fence top.This alarm rule is suitable for the intrusion defense of various circumferences and fence very much, for example railway guardrail (preventing to get into), enclosure wall application scenarios such as (preventing that any direction from passing through) of standing.
3) regional intrusion alarm: when people, animal or other foreign matter intrusion monitoring defence area, send warning automatically.This alarm rule is set the defence area of a plurality of arbitrary shapes, and a plurality of anti-zone position can be overlapping, is independent of each other.To each defence area, can also specify invader's in this defence area parameters such as type (people, animal, the vehicle), size, invasion speed, the shortest invasion time and sense of motion, parameters all types of in each defence area can independently be set, and are independent of each other.Utilize above function, can in Same Scene, detect the moving target of different characteristic.This alarm mode detects to different size and the motion features of invader, sends alerting signal and instant video affirmation mechanism is provided, and has effectively reduced because the unnecessary guard operations that wrong report causes.This alarm rule is applicable to that the illegal invasion of various occasions detects, for example invades high-risk zone, gets into railway clearance, climbs up and over enclosure wall, and write down to the holdee who moves on the inherent illegal direction on one's own time etc.
4) foreign matter is left over warning: when article (parcel, fragment, luggage etc.) auto alarm when in certain defence area, being placed or abandoning.No matter be the article (pick up camera is seen the situation of complete abandonment process) that carry and in the defence area, abandon by the people; Or outside the defence area, thrown away article in the defence area (pick up camera see that part abandon the situation of process) by the people; Still emergent article (pick up camera can't see the situation of abandonment process fully) in the defence area can correctly detect abandon from scene.This newspaper police regulations are applicable to that then the abandon of various occasions detects the smooth liquid (possibly cause accidents such as the pedestrian slips, traffic accident) that for example accumulates on the article fragment on the dangerous obstacles on the railway, crag falling rocks, the rubbish of throwing out without care, the high speed railway, the ground etc.
Vehicle carried subsystem 2 mainly is made up of vehicle carried terminal 21, is responsible for receiving the alarm message that the on-site supervision subsystem sends, and sends alarm to the driver.The structured flowchart of vehicle carried terminal 21 is as shown in Figure 3, specifically comprises: car-ground radio coffret 211, warning processing module 212, audio alert module 213 and vehicle-mounted display module 214.Car-ground radio coffret 211 communicates through the car-ground radio coffret 126 of air interface and on-site supervision subsystem; Receive alarm message; Send into warning processing module 212; Warning processing module 212 produces different informations according to alarm message is handled and stored according to different alert levels, and 213 of audio alert modules are reported warning voice prompt information according to alert levels to the driver; Vehicle-mounted display unit 214 is optional module, can show the realtime graphic information and the alert data of monitoring point.
Monitoring center's subsystem 4 is native system information processing centre (IPC)s, comprises monitoring center's service end 41 and monitoring center's client 42.Video information and alarm message that on-site supervision subsystem 1 is gathered are pooled to monitoring center's service end 41 through transmission network 3; 41 pairs of information of monitoring center's service end are handled and are stored; Related service department and relevant leader monitoring center capable of using client 42 monitor in real time and inquire about through multiple modes such as wireless network, Internet.
The structured flowchart of monitoring center's service end 41 is as shown in Figure 4, specifically comprises: center management server 411, storage server 412, forwarding server 413 are formed.411 pairs of system resources of center management server are carried out centralized management, comprise equipment, user, website etc.Center management server is as the core of total system, for total system provide original data preservation, administer and maintain.Storage server 412 radical functions are that video recording and alert data are carried out centralized stores and management.Forwarding server 413 is responsible for the distribution of Media Stream, and the video that on-site monitoring equipment sends at first inserts forwarding server, is distributed to client by the service of transmitting 413 again.
The structured flowchart of monitoring center's client 42 is as shown in Figure 5, specifically comprises: monitoring unit 421, information management unit 422, playing back videos unit 423 and the inquiry of historical data unit 424 are formed in real time.In real time monitoring unit 42 is used for real time inspection control point video, reports to the police when taking place when the monitoring scene has, and monitoring unit will eject the video information of alarm set point automatically, and the user can do further to judge according to video, to remove flase alarm.The user also can retrieve for examination the video of specifying the control point as required.Information management unit 422 be used for the configuration management various device, show each equipment running, configuration and leading subscriber authority etc.Playing back videos unit 423 is used for checking and the program request video information.The inquiry of historical data unit 424 shows historical alarm message with various diagrammatic forms, and carries out the statistic of classification analysis according to alarm level and control point.
Claims (5)
1. based on the railway foreign body limit-intruding monitoring system of intelligent video; By on-site supervision subsystem (1), vehicle carried subsystem (2), data transmission subsystem (3), monitoring center's subsystem (4) wherein, on-site supervision subsystem (1) is made up of pick up camera (11) and foreign body intrusion monitoring terminal (12); Monitoring center's subsystem (4) comprises monitoring center's service end (41) and monitoring center's client (42); Vehicle carried subsystem (2) is vehicle carried terminal (21), be responsible for to receive alarm message that the on-site supervision subsystem sends and sends alarm to locomotive.
2. the railway foreign body limit-intruding monitoring system based on intelligent video according to claim 1; It is characterized in that the structure of described foreign body intrusion monitoring terminal (12) specifically comprises: video acquisition module (121), analysis module (122), video encoding module (123), local memory module (124), alarm linkage connect (125), car-ground radio coffret (126), network service connects (127); Video acquisition module (121) links to each other with pick up camera (11) through video line, and the analog video signal that pick up camera (11) is gathered carries out digitized processing, and analysis module (122) is carried out analyzing and processing to video scene; Video encoding module (123) is carried out compressed encoding to video, and the video flowing behind the coding is divided into two-way, and one the road delivers to local memory module (124), and the network communication interface (127) of leading up to is sent to monitoring and control centre.
3. the railway foreign body limit-intruding monitoring system based on intelligent video according to claim 1; It is characterized in that the structure of described vehicle carried terminal (21) specifically comprises: the car-ground radio transmission connects (211), warning processing module (212), audio alert module (213) and vehicle-mounted display module (214); Car-ground radio coffret (211) receives alarm message through air interface; Send into warning processing module (212); Warning processing module (212) produces different informations according to alarm message is handled and stored according to different alert levels, and audio alert module (213) is then reported warning voice prompt information according to alert levels to the driver; Vehicle-mounted display unit (214) is optional module, can show the realtime graphic information and the alert data of monitoring point.
4. the railway foreign body limit-intruding monitoring system based on intelligent video according to claim 1; It is characterized in that said be responsible for comprises GPRS/CDMA/3G, wired optical fiber and many kinds of communication modes of ADSL with the data upload of collection in worksite to the optional type of transmission of data transmission subsystem (3) of monitoring center's subsystem.
5. the railway foreign body limit-intruding monitoring system based on intelligent video according to claim 1 is characterized in that, monitoring center's service end (41) comprising: center management server (411), storage server (412), forwarding server (413); Monitoring center's client (42) comprising: real-time monitoring unit (421), information management unit (422), playing back videos unit (423) and the inquiry of historical data unit (424).
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