CN2718699Y - Intelligent monitoring and recording system based on video trigger and velocity measurement for vehicle - Google Patents
Intelligent monitoring and recording system based on video trigger and velocity measurement for vehicle Download PDFInfo
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- CN2718699Y CN2718699Y CN 200420037766 CN200420037766U CN2718699Y CN 2718699 Y CN2718699 Y CN 2718699Y CN 200420037766 CN200420037766 CN 200420037766 CN 200420037766 U CN200420037766 U CN 200420037766U CN 2718699 Y CN2718699 Y CN 2718699Y
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Abstract
The utility model discloses an intelligent monitoring and recording system based on video trigger and velocity measurement for vehicle. The utility model is characterized in that the system comprises a panoramic camera, close-up cameras, a supplemental lighting light source, and a monitor, and the panoramic camera, the close-up cameras, and the supplemental lighting light source are respectively fixed on the overhead cross bar at intervals. The field of view of the panoramic camera aligns the entire traffic lanes in the same direction. The panoramic camera and a plurality of close-up cameras are connected with the monitor. The monitor is used for the display of the vehicle situation. At the same time, the image exported by the close-up cameras are processed, identified, and then stored in a database. The functions of the trigger at the time of the vehicle reaching, shooting the image of the vehicle satisfying the required quality of the license plate recognition, and automatically recognizing the vehicle license number and license color are completed through the video processing and the pattern recognition technique. The vehicle characters of the continuous several rounds are extracted and tracked by making use of the video image of the close-up cameras. The accurate velocity measurement for vehicle can be realized according to the geometric relation calculation corresponding to the close-up video image.
Description
Technical field
The utility model belongs to intelligent transportation monitoring and area of pattern recognition, relates in particular to a kind of Vehicular intelligent monitoring and recording system that triggers and test the speed based on video.
Background technology
At present, for car plate identification provides trigger pip and the traditional means of carrying out speed of a motor vehicle detection is to bury inductive coil underground under the road surface, total system comprises panoramic camera 11, feature video camera 12, constant illumination lamp 13, light filling lamp 14, inductive coil 15, coil monitor 16 and industrial computer 17 as shown in Figure 1.When vehicle arrives, coil checker provides vehicle and arrives trigger pip, begin the measuring vehicle travel speed simultaneously, after Industrial Control Computer receives the trigger pip of coil transmission, when insufficient light, start the flashlamp light filling, the feature video camera is captured a width of cloth vehicle close shot close-up image simultaneously, and be sent in the Industrial Control Computer, after carrying out analog to digital conversion by image pick-up card, digitized image is carried out the car plate location, Character segmentation, feature extraction and character, color identification, obtain the information of whole car plate, simultaneously panoramic camera is captured the panoramic picture that a width of cloth comprises the vehicle overall picture and is preserved, and panoramic camera can provide the video monitoring image of standard, after vehicle leaves coil region, coil tests the speed and finishes and the result that will test the speed is input in the Industrial Control Computer, together with license plate numbers, vehicle close-up image and vehicle panoramic picture are saved in local data base or the network data base together.In actual applications, this method construction maintenance expense height, the destructiveness of road pavement is big.And because there is certain distance in the place buried underground of inductive coil with the equipment that is used for car plate identification, the cabling that causes total system is more complicated also, is unfavorable for anti-tampering and lightning protection, simultaneously, adopts two cross bars also to strengthen the difficulty of construction and maintenance work greatly.
Therefore, do not adopt independent vehicle equipment, only utilizing the video image of the feature video camera that has set up is user's great demand for car plate identification provides trigger pip and carries out speed of a motor vehicle detection.Having released some in recent years on the market utilizes video to trigger the Gate System that replaces coil to trigger, but these systems can not adapt to the complexity variation of light fully and have only video to trigger function, can not realize video frequency speed-measuring, thereby system can't satisfy the requirement of user for vehicle capture rate and licence plate verification and measurement ratio under all weather conditions.
Summary of the invention
The utility model is in order to overcome the existing shortcoming that trigger pip is provided and carries out speed of a motor vehicle detection technique of discerning for car plate, and a kind of Vehicular intelligent monitoring and recording system that triggers and test the speed based on video that provides, this system utilizes the image of system's bust shot video camera production to replace original wagon detector to carry out the function that vehicle arrives triggering and car speed detection, and at abominable illumination condition and night scene such as car headlight, by the stability of self adaptive imaging and light filling control assurance system, satisfy user's demand.
In order to realize above-mentioned goal of the invention, the utility model adopts following technical scheme:
A kind of Vehicular intelligent monitoring and recording system that triggers and test the speed based on video is characterized in, comprising: panoramic camera, a plurality of feature video camera, light filling light source, the monitoring equipment identical with the feature number of cameras; Described panoramic camera, a plurality of feature video camera, a plurality of light filling light source are installed on the overhead cross bar respectively at interval, and also comprise the virtual coil that is located at each track specific road section; Wherein: the whole tracks of same direction are aimed in the visual field of panoramic camera, are used to monitor the vehicle condition in the whole tracks of same direction; The virtual coil of each track specific road section is aimed in the visual field of each feature video camera; Described light filling light source is followed the feature video camera and is provided with one to one; The output terminal of described panoramic camera, a plurality of feature video cameras is electrically connected with the input end display control module of monitoring equipment by video interface, by the display screen demonstration of monitoring equipment; Described monitoring equipment is used for the field monitoring of panoramic camera production is entered the display screen demonstration of the vehicle condition in track by monitoring equipment, and the image with the output of feature video camera carries out processing and identification simultaneously, is stored in database.
The above-mentioned Vehicular intelligent monitoring and recording system that triggers and test the speed based on video, wherein, described light filling light source is a pulsed LED light filling light source.
The above-mentioned Vehicular intelligent monitoring and recording system that triggers and test the speed based on video, wherein, described panoramic camera and feature video camera respectively comprise a camera and a shooting control module.
The above-mentioned Vehicular intelligent monitoring and recording system that triggers and test the speed based on video, wherein, the shooting control module of described feature video camera comprises an imaging sensor, one drive circuit and an imaging and light filling control module; The input end of imaging sensor is connected with the output terminal of imaging with the light filling control module, and the output terminal of imaging sensor is connected with the input end of digital signal processing unit; The input end of imaging and light filling control module is connected with the output terminal of driving circuit and digital signal processing unit respectively, and the output terminal of imaging and light filling control module is connected with the input end of imaging sensor, and is connected with the light filling light source by serial line interface.
The above-mentioned Vehicular intelligent monitoring and recording system that triggers and test the speed based on video, wherein, imaging and light filling control module in the shooting control module of described feature video camera mainly are made of a single-chip microcomputer.
The above-mentioned Vehicular intelligent monitoring and recording system that triggers and test the speed based on video, wherein, described monitoring equipment mainly constitutes by digital signal processing unit or by industrial computer, and it is connected with the feature video camera with each panoramic camera by video interface.
The utility model compared with prior art, has following remarkable result owing to adopted above technical scheme:
1, employing is formed system by panoramic camera, feature video camera, pulsed LED light filling light source and digital signal processing unit, need not adopt other vehicle equipments, only adopt the video image of feature video camera, utilize Video processing and mode identification technology to finish vehicle and arrive triggering, car speed detection, capture the vehicle image that satisfies license plate identification requirement quality and discern vehicle number automatically and the licence plate color;
2, utilize the feature camera video image, continuous several vehicle characteristics is wherein extracted and follows the tracks of,, realize the accurate measurement of Vehicle Speed by the calculating of road plane with the corresponding geometric relationship of feature video image;
3, adopt pulsed LED lamp light filling, led pulse and camera electronic shutter opening time strict conformance, greatly improved the effective rate of utilization of light, make the power very little (about 2W) of in bayonet socket is used light source, reduced the influence of light source to the driver, avoid the control problem of conventional light filling (comprising the LED light filling) light source On/Off transition period simultaneously, realized seamlessly transitting fully, guaranteed the imaging effect during dawn and dusk.
4, digital signal processing unit adopts closed-loop control for the quality of close-up image, make close-up image remain on location and the identification that is suitable for licence plate most always, especially at night, even under the situation that distance light car headlight is opened, can guarantee the clear and legible of car body feature, influenced by the car headlight night very serious and do not resemble existing monitoring camera;
5, adopt the flashlamp light filling, in the moment of judging that vehicle triggers, digital signal processing unit sends flash command to flashlamp, makes the vehicle pictures of shooting more clear.
Description of drawings
Concrete characteristic performance of the present utility model is further described by following embodiment and accompanying drawing thereof.
Fig. 1 is traditional triggering and the bayonet socket auditing system that tests the speed based on coil.
The public security bayonet socket intelligence auditing system that Fig. 2 triggers based on video and tests the speed for the utility model.
Fig. 3 is video camera control and a light filling control circuit schematic diagram in the utility model.
Fig. 4 is imaging and a light filling control module circuit diagram among Fig. 3.
Fig. 5 is the utility model imaging and light filling control principle process flow diagram.
Fig. 6 triggers and the speed-measuring method process flow diagram for the utility model video.
The synoptic diagram of each image frame grabber when Fig. 7 is the vehicle process virtual coil that is used for the triggering of the utility model video, tests the speed.
Embodiment
See also Fig. 2.A kind of Vehicular intelligent monitoring and recording system that triggers and test the speed based on video of the utility model comprises: panoramic camera 21, a plurality of feature video camera 22, light filling light source 24, monitoring equipment that constant illumination device 23 is identical with the feature number of cameras; Described panoramic camera, a plurality of feature video camera, constant illumination device, a plurality of light filling light source are installed on the overhead cross bar 25 respectively at interval, and also comprise virtual coil 26 that is located at each track specific road section and the monitoring equipment 27 that is connected by video interface with each video camera; Wherein: the whole tracks of same direction are aimed in the visual field of panoramic camera, are used to monitor the vehicle condition in the whole tracks of same direction; The virtual coil of each track specific road section is aimed in the visual field of each feature video camera, and virtual coil described in the utility model is actual to be the specific zone, pairing each track, visual field of feature video camera; The light filling light source is made of LED, follows the feature video camera and is provided with one to one.The output terminal of panoramic camera, a plurality of feature video cameras is electrically connected with the input end display control module of monitoring equipment by video interface, by the display screen demonstration of monitoring equipment.Monitoring equipment is made of digital signal processing unit or industrial computer, be used for the field monitoring of panoramic camera production is entered the display screen demonstration of the vehicle condition in track by monitoring equipment, image with the output of feature video camera carries out processing and identification simultaneously, is stored in database.The monitoring equipment 27 of present embodiment is made of digital signal processing unit.
Panoramic camera described in the utility model and feature video camera comprise that respectively one is located at the camera 31 and a shooting control module 32 of appropriate location in the protective cover.Adopt pulsed LED lamp light filling when night and insufficient light, the opening time of pulsed LED lamp and camera shutter synchronization, thus mean flow rate reduced, reduced influence to the driver, utilize the orienting reflex principle simultaneously, improved the accuracy rate of licence plate location and identification.
The utility model only needs an overhead cross bar to be used to set up camera in the practical application, need not adopt other vehicle equipments.Only adopt the video image of feature video camera, utilize Video processing and mode identification technology to finish vehicle and arrive triggering, car speed detection, capture the vehicle image that satisfies license plate identification requirement quality and discern vehicle number automatically and the licence plate color, so the structure of system is very succinct.
See also Fig. 3.The utility model trigger based on video and the Vehicular intelligent monitoring and recording system that tests the speed in the shooting control module 32 of feature video camera comprise an imaging sensor 321, one drive circuit 322 and an imaging and light filling control module 323; Digital signal processing unit 27 is connected to imaging and light filling control module in the feature video camera by serial port protocol modes such as RS232/RS485/ electric current loops; The input end of imaging sensor is connected with the output terminal of imaging with the light filling control module, and the output terminal of imaging sensor is connected with the input end of digital signal processing unit; The input end of imaging and light filling control module is connected with the output terminal of driving circuit and digital signal processing unit respectively, and the output terminal of imaging and light filling control module is connected with the input end of imaging sensor, and is connected with light filling light source 24 by serial line interface.
Digital signal processing unit 27 is behind the analog video signal that obtains the feature video camera, be converted into digital signal by the analog to digital conversion interface, seek the image region-of-interest of dynamic change adaptively, generate respective imaging and light filling control command by adaptive algorithm, send to imaging and light filling control module in the feature video camera, time shutter length and image light filling effect by its control respective imaging sensor (CCD chip), so just constitute a closed-loop control for the close-up image quality, make close-up image remain on location and the identification that is suitable for licence plate most always, especially at night, even under the situation that distance light car headlight is opened, can guarantee the clear and legible of car body feature.
See also Fig. 4, the utility model trigger based on video and the Vehicular intelligent monitoring and recording system that tests the speed in the shooting control module of feature video camera in imaging and light filling control module 322 mainly constitute by a single-chip microcomputer.Finish the main control function by single-chip microcomputer, finish the control of whole module and, and finish control outside light filling equipment working state to the control of imaging sensor (CCD chip) imaging effect.U1 among the figure, U2, U3, U4 isolate optocoupler, are used for carrying out Signal Spacing protection internal circuit, and all communications and control polishing signal are all by transferring the output of electric current loop signal to after the light-coupled isolation.
Driving circuit (the following CCD control circuit that also claims) principle of work and flow process are, clock signal (the Xin of the control CCD imaging effect of main control singlechip intercepting CCD control circuit, X1, X2, X3 and CLK), obtain the RS232 serial signal order of the control electronic shutter of sending from control module by the RXD pin, main control singlechip is control command thus, algorithm according to the imaging control of setting, generate the clock signal Xout of a control CCD imaging effect, by (Xout, X1, X2, X3 and CLK) 5 pin export to the CCD imager chip, reach by the effect of digital signal processing unit by the serial port command control picture pick-up device electronic shutter time shutter, control flow is finished after by the TXD pin with control signal and state of a control the digital signal processing unit that feeds back to, with the affirmation state of a control with serial data.
For example, digital signal processing unit is issued an image deepening of main control singlechip order by adaptive algorithm, and main control singlechip is just exported the Xout signal lag after a time period like this, makes the ccd image time shutter shorten, the imaging effect deepening.Digital signal processing unit is by adaptive algorithm, issues the order that brightens of image of main control singlechip, and main control singlechip is just carried the Xout signal previous time period output like this, makes that the ccd image time shutter is elongated, and imaging effect brightens.
Receive simultaneously the order of the control polishing effect that control module sends by main control singlechip, concern the light filling effect of controlling supplementary lighting module time phase constantly by unlatching of control electronic shutter and polishing, by the duty of the outside light filling equipment of single-chip microcomputer pin Flash1, Flash2 control.So just constitute a closed-loop control for the close-up image quality, make no matter close-up image can both remain on location and the identification that is suitable for licence plate most with night by day always, thereby make system be issued to very high license plate identification rate in various light condition.
See also Fig. 5, this is the utility model identification process such as imaging and light filling control principle process flow diagram.After the video image of simulation is input to digital signal processing unit, through analog to digital conversion, carry out becoming satisfactory digital picture after the image pre-service, according to the characteristics of image of wanting region-of-interest, color characteristic for example, gray feature and textural characteristics etc., in entire image, seek the position (for example position of car light or car plate) of region-of-interest automatically, in the region-of-interest of determining, whether characteristics of image such as the brightness of image and texture satisfy the processing requirements of image recognition algorithm in the analyzed area, if satisfy, then need not regulate imaging parameters and light filling effect, directly change next video image over to and carry out process as mentioned above again; Otherwise, carry out the control of imaging effect, judge whether that at first the parameter of controlling video camera imaging has been adjusted to maximal value (for example shutter has been transferred to maximum), if do not have, then regulate imaging parameters, change next video image over to and carry out process as mentioned above again; Otherwise illustrate to rely on the functional parameter of video camera itself that image is met the demands, then start light filling equipment, determine the illumination brightness of light filling equipment, the while is according to the imaging parameters of light filling intensity adjustments video camera, to reach best imaging effect.
See also Fig. 6, this is the workflow diagram of the utility model monitoring method.
In the camera field of view scope, mark a rectangular area as virtual coil (shown in the virtual coil among Fig. 2) by software.When vehicle enters virtual coil, system can be according to current vehicle image and road background image information, detect gradation of image in this zone, thereby the variation of color and edge texture produces the trigger pip that vehicle arrives, digital signal processing unit takes suitable light-filling strategy control LED brightness to carry out light filling according to surrounding environment simultaneously, the feature video camera is captured the vehicle close-up image, locate by car plate, Character segmentation, character recognition and color identification obtain complete vehicle license information, the feature video camera is gathered video image incessantly with the speed of 50 of per seconds, when digital signal processing unit determines that vehicle has triggered in the virtual coil, it carries out analyzing and processing to the video image in every the virtual coil zone that collects, the feature of detected vehicle image during according to triggering, direction with reference to vehicle ', seek same vehicle characteristics in the virtual coil image range of the every field picture after triggering constantly, thereby obtain the position in the adjacent airport image of vehicle after vehicle triggers, till in vehicle ' goes out the virtual coil zone, digital signal processing unit utilizes the geometric distance between the trigger position and time several times to calculate the speed of this vehicle of moment, this speed promptly can be used as the instantaneous velocity of vehicle by this detection section, is saved to database and shows intuitively on the management software interface together with license plate information.
The synoptic diagram of each image frame grabber when Fig. 7 is the vehicle process virtual coil that is used for the triggering of the utility model video, tests the speed.A among the figure, b, c, position in continuous several field picture when the vehicle process virtual coil of determining is followed the tracks of in each representative of d, the arrow line direction is represented the direction (sailing to afterbody by the virtual coil head) of vehicle ', a among the figure, b, c, vehicle shown in the d one has co-existed in four in the virtual coil image sequence, wherein a is that vehicle triggers field pattern, b is first field picture after vehicle triggers the field, c is that second field picture and the d behind the vehicle triggering field is that vehicle leaves (being the 3rd after vehicle triggers the field), utilize geometric distance between the trigger position several times (among the figure shown in the dotted line) and time series to calculate the speed of this vehicle of this (according to distance and time moment, just can calculate speed according to formula, this is a prior art, repeats no more).This speed promptly can be used as the instantaneous velocity of vehicle by this detection section.
The licence plate close-up image that digital signal processing unit utilizes the feature video camera to capture automatically identifies vehicle license information, and shows intuitively on the management software interface.The personalized licence plate (GA36.1-2001) of 02 formula of can discerning, now use the information such as Chinese character, letter, numeral, color of special licence plates such as the civilian vehicle licence plate of 92 formula licence plates (GA36-92) and military vehicle, police car, People's Armed Police, Hongkong and Macro.
(picture is deposited with file mode all can be saved in database to cross the various information (time, place, licence plate, speed, vehicle, picture, warning message etc.) of check point vehicle, preserve its filename in the database) in, and can be by the distant view of seeing vehicle and the close shot picture of current record objective interface.Simultaneously, system provides flexibly, means allow user search, cruising vehicle information history data easily.Native system can independent operating, realizes above various functions, also can networking operation, realize information sharing and remote maintenance.
The utility model is mainly used in the places such as import and export road, urban road and crossing in highway, national highway, city, is particularly useful for destroying the environment of pavement construction.The anterior thing of passing each motor vehicle in monitoring road surface is levied characteristic image and the vehicle panoramic picture carries out continuous all-weather real-time supervision in 24 hours, and carry out car plate identification according to captured image, automatically the identification number-plate number and car plate color write down corresponding vehicle type, body color, the number-plate number, travel direction, travel speed, road automatically through various parameters such as times.In order to vehicle flow and the state of realizing grasping at any time each gateway, city, carry out vehicle dynamic deploy to ensure effective monitoring and control of illegal activities, to hypervelocity, drive in the wrong direction etc. vehicles peccancy and stolenly rob, hit-and-run, crime suspected vehicles Realtime Alerts, ride to pass in and out the city time and the route conditions of passing through but also can monitor out stolen vehicle or criminal.
Claims (6)
1, a kind of Vehicular intelligent monitoring and recording system that triggers and test the speed based on video is characterized in that, comprising: panoramic camera, a plurality of feature video camera, light filling light source, the monitoring equipment identical with the feature number of cameras; Described panoramic camera, a plurality of feature video camera, a plurality of light filling light source are installed on the overhead cross bar respectively at interval, and also comprise the virtual coil that is located at each track specific road section; Wherein: the whole tracks of same direction are aimed in the visual field of panoramic camera, are used to monitor the vehicle condition in the whole tracks of same direction; The virtual coil of each track specific road section is aimed in the visual field of each feature video camera; Described light filling light source is followed the feature video camera and is provided with one to one; The output terminal of described panoramic camera, a plurality of feature video cameras is electrically connected with the input end display control module of monitoring equipment by video interface, by the display screen demonstration of monitoring equipment; Described monitoring equipment is used for the field monitoring of panoramic camera production is entered the display screen demonstration of the vehicle condition in track by monitoring equipment, and the image with the output of feature video camera carries out processing and identification simultaneously, is stored in database.
2, the Vehicular intelligent monitoring and recording system that triggers and test the speed based on video according to claim 1 is characterized in that described light filling light source is a pulsed LED light filling light source.
3, the Vehicular intelligent monitoring and recording system that triggers and test the speed based on video according to claim 1 is characterized in that, described panoramic camera and feature video camera respectively comprise a camera and a shooting control module.
4, the Vehicular intelligent monitoring and recording system that triggers and test the speed based on video according to claim 3 is characterized in that the shooting control module of described feature video camera comprises an imaging sensor, one drive circuit and an imaging and light filling control module; The input end of imaging sensor is connected with the output terminal of imaging with the light filling control module, and the output terminal of imaging sensor is connected with the input end of digital signal processing unit; The input end of imaging and light filling control module is connected with the output terminal of driving circuit and digital signal processing unit respectively, and the output terminal of imaging and light filling control module is connected with the input end of imaging sensor, and is connected with the light filling light source by serial line interface.
5, the Vehicular intelligent monitoring and recording system that triggers and test the speed based on video according to claim 4 is characterized in that imaging and light filling control module in the shooting control module of described feature video camera mainly are made of a single-chip microcomputer.
6, the Vehicular intelligent monitoring and recording system that triggers and test the speed based on video according to claim 1, it is characterized in that, described monitoring equipment mainly constitutes by digital signal processing unit or by industrial computer, and it is connected with the feature video camera with each panoramic camera by video interface.
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| CN 200420037766 CN2718699Y (en) | 2004-07-21 | 2004-07-21 | Intelligent monitoring and recording system based on video trigger and velocity measurement for vehicle |
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| CN 200420037766 CN2718699Y (en) | 2004-07-21 | 2004-07-21 | Intelligent monitoring and recording system based on video trigger and velocity measurement for vehicle |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101029823B (en) * | 2006-02-28 | 2010-09-15 | 东软集团股份有限公司 | Method for tracking vehicle based on state and classification |
| CN102368352A (en) * | 2011-10-08 | 2012-03-07 | 中盟智能科技（苏州）有限公司 | Traffic information acquisition method and apparatus thereof |
| CN102699917A (en) * | 2012-06-08 | 2012-10-03 | 北京工业大学 | Magic cube-solving robot based on intelligent mobile phone |
| CN103186982A (en) * | 2011-12-28 | 2013-07-03 | 南京理工大学常熟研究院有限公司 | Intelligent access system for public security |
| CN103198669A (en) * | 2013-03-06 | 2013-07-10 | 安徽云盛信息科技有限公司 | Video monitoring system in intelligent transportation system |
| CN105376495A (en) * | 2015-12-05 | 2016-03-02 | 深圳市旗云智能科技有限公司 | Device and method for camera to snapshot advance and delayed images |
| CN107305627A (en) * | 2016-04-22 | 2017-10-31 | 杭州海康威视数字技术股份有限公司 | A kind of automobile video frequency monitoring method, server and system |
| CN109035793A (en) * | 2018-08-12 | 2018-12-18 | 上海悦骑智能科技有限公司 | Vehicle camera system, method and storage medium |
| CN109035805A (en) * | 2018-09-21 | 2018-12-18 | 深圳市九洲电器有限公司 | A kind of intelligent identification Method and device of license plate number |
| CN110070724A (en) * | 2018-01-24 | 2019-07-30 | 北京英泰智科技股份有限公司 | A kind of video monitoring method, device, video camera and image information supervisory systems |
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2004
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101029823B (en) * | 2006-02-28 | 2010-09-15 | 东软集团股份有限公司 | Method for tracking vehicle based on state and classification |
| CN102368352B (en) * | 2011-10-08 | 2013-10-30 | 中盟智能科技（苏州）有限公司 | Traffic information acquisition method and apparatus thereof |
| CN102368352A (en) * | 2011-10-08 | 2012-03-07 | 中盟智能科技（苏州）有限公司 | Traffic information acquisition method and apparatus thereof |
| CN103186982B (en) * | 2011-12-28 | 2015-07-01 | 南京理工大学常熟研究院有限公司 | Intelligent access system for public security |
| CN103186982A (en) * | 2011-12-28 | 2013-07-03 | 南京理工大学常熟研究院有限公司 | Intelligent access system for public security |
| CN102699917A (en) * | 2012-06-08 | 2012-10-03 | 北京工业大学 | Magic cube-solving robot based on intelligent mobile phone |
| CN103198669A (en) * | 2013-03-06 | 2013-07-10 | 安徽云盛信息科技有限公司 | Video monitoring system in intelligent transportation system |
| CN105376495A (en) * | 2015-12-05 | 2016-03-02 | 深圳市旗云智能科技有限公司 | Device and method for camera to snapshot advance and delayed images |
| CN105376495B (en) * | 2015-12-05 | 2019-01-04 | 深圳市旗云智能科技有限公司 | Shift to an earlier date and delay the grasp shoot device and grasp shoot method of imaging for video capture |
| CN107305627A (en) * | 2016-04-22 | 2017-10-31 | 杭州海康威视数字技术股份有限公司 | A kind of automobile video frequency monitoring method, server and system |
| CN110070724A (en) * | 2018-01-24 | 2019-07-30 | 北京英泰智科技股份有限公司 | A kind of video monitoring method, device, video camera and image information supervisory systems |
| CN109035793A (en) * | 2018-08-12 | 2018-12-18 | 上海悦骑智能科技有限公司 | Vehicle camera system, method and storage medium |
| CN109035805A (en) * | 2018-09-21 | 2018-12-18 | 深圳市九洲电器有限公司 | A kind of intelligent identification Method and device of license plate number |
| CN109035805B (en) * | 2018-09-21 | 2021-03-02 | 深圳市九洲电器有限公司 | Intelligent recognition method and device for license plate number |
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