CN202455439U - High definition network digital video camera for assisting road traffic control - Google Patents
High definition network digital video camera for assisting road traffic control Download PDFInfo
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- CN202455439U CN202455439U CN2012200601300U CN201220060130U CN202455439U CN 202455439 U CN202455439 U CN 202455439U CN 2012200601300 U CN2012200601300 U CN 2012200601300U CN 201220060130 U CN201220060130 U CN 201220060130U CN 202455439 U CN202455439 U CN 202455439U
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Abstract
A high definition network digital video camera for assisting road traffic control solves the technical problems that a high definition network digital video camera system can not achieve video monitoring and image snap-shot synchronously. The technical scheme is that a circuit structure comprises an image collecting module, a driving circuit matched with the image collecting module, an image processing and control unit and a network interface module. The image collecting module and the driving circuit are arranged on a casing. A structure of the image processing and control unit comprises an image pre-processing unit connected with a signal output end of the image collecting module, a snap-shot control unit and a vehicle detecting identification module, wherein the snap-shot control unit and the vehicle detecting identification module are based on a digital signal processor (DSP) respectively. A control end of the image pre-processing unit is connected with the driving circuit of the image collecting module and outputs two branches of signals to the snap-shot control unit and the vehicle detecting identification module respectively, the vehicle detecting identification module is connected with the snap-shot control unit in bi-directional mode, and a signal output end of the snap-shot control unit is connected with the network interface module.
Description
Technical field
The utility model relates to the high definition network digital video camera that a kind of relief road traffic administration is used, and belongs to the monitoring field, particularly a kind of high definition network digital video camera based on two DSP.
Background technology
Along with progressively going deep into of China's reform and opening-up, the fast development that has brought the national economy all trades and professions, the pace of construction in city is also progressively accelerated.The quick growth of automobile pollution has proposed increasingly high requirement to the traffic capacity that has fast of road.At traffic safety, traditional broken road is buried the coil mode underground the unobstructed property of road is caused very big obstacle, and construction cost is high simultaneously, when needing to change coil position, also will break the road once more.At home, the electric police grasp shoot system is made up of equipment such as analogue camera, video frequency collection card, car plate identifiers, and the photo resolution that this system captures is low, and it is poor to capture picture effect night, and the recognition correct rate of the number-plate number is low.The device category that constitutes the front end capturing system simultaneously is various, when breaking down, is difficult in the short time and navigates to the equipment that breaks down, and can not deal with problems timely and effectively.At present,, realize that video monitoring and vehicle illegal candid photograph need to make up two cover systems and carry out respectively, not only improve purchase cost and operation maintenance expense, also cause the wasting of resources in same place.
Main at home big and medium-sized cities are used for the electronic police system of break in traffic rules and regulations and bayonet socket monitoring; Type by video camera mainly is divided into two big types; First kind is the analog video camera system; Use analog video systems, to the travel direction in crossing, need be according to the number of setting up of monitoring track number decision camera.A general crossing needs to be equipped with simultaneously at least two video cameras, and crossing installation member upper-part is more, and need lay many video links simultaneously, and Installation and Debugging are put to no little inconvenience.In later stage evidence obtaining process, because panoramic camera and feature video camera configured separate, for the image in the panoramic camera; Can only compare judgement according to vehicle; Can not clearly tell vehicle license information, to the traffick of same vehicle, illegal processing lack of evidence.Second kind of network HD video camera chain used in the electronic police system of this video camera formation, and a vehicle heading to the monitoring crossing only uses a high-definition camera.The high-definition camera visual field comprises the red light phase of crossing opposite direction and current vehicles peccancy simultaneously.Vehicle feature and car plate feature can directly take at whole high-definition image.Use native system, a high definition camera only is installed on the travel direction, thus simplified wiring work and maintenance cost, and, the validity of illegal evidence of later stage is also better guaranteed because feature and panoramic pictures characteristic are in full accord.Network application shows its excellent properties and ease for use all the more as current general a kind of application scheme.But at present; In the network HD video camera chain owing to adopt a video camera; Video monitoring and image are captured conflict occurred; Can't realize synchronously, make traffic administration person can not in time find the behavior of traffic accident or traffic violations, for the management work of vehicle supervision department has brought inconvenience but capture time-delay.
Summary of the invention
Can not video monitoring and image be captured the technical problem that realizes synchronously for solving high definition network digital camera system; The utility model has designed the high definition network digital video camera that a kind of relief road traffic administration is used; Through two groups of dsp chips are set in video camera; And guaranteed that by fpga chip image compression and Video Detection work simultaneously, avoided video monitoring to conflict with image is captured.
The utility model for realizing the technical scheme that goal of the invention adopts is; The high definition network digital video camera that a kind of relief road traffic administration is used; Comprise the image capture module and supporting drive circuit, image processing and control unit and the Network Interface Module that are arranged on the casing in the circuit structure; Comprise the image pretreatment unit that is connected with the signal output part of image capture module in the above-mentioned image processing and the structure of control unit and respectively based on candid photograph control unit and the vehicle detection identification module of DSP; The control end of image pretreatment unit is connected with the drive circuit of image capture module and exports two paths of signals respectively to capturing control unit and vehicle detection identification module; The vehicle detection identification module with capture that control unit is two-way to be connected, the signal output part of capturing control unit is connected with Network Interface Module.
The beneficial effect of the utility model is: through the frame design of two DSP and FPGA is set in the circuit structure of video camera; Assurance image compression and Video Detection are carried out work simultaneously; It is the no conflict that video monitoring and image are captured; Avoid the real-time of view data is impacted, can the influence that cause information and image data coupling owing to the calculation process elapsed time be dropped to minimum simultaneously.
Below in conjunction with accompanying drawing the utility model is elaborated.
Description of drawings
Fig. 1 represents the circuit principle structure block diagram of the utility model.
Among the figure, 1 representative image acquisition module, 1-1 represents drive circuit; 2 representative image pretreatment units, 3A represents the vehicle detection identification module, and control unit is captured in the 3B representative; 3-1 represents Network Interface Module, and 3-2 represents the I/O interface circuit, and 3-3 represents SD card circuit module.
Embodiment
The high definition network digital video camera that a kind of relief road traffic administration is used; Comprise the image capture module 1 and supporting drive circuit 1-1, image processing and control unit and the Network Interface Module 3-1 that are arranged on the casing in the circuit structure; Comprise the image pretreatment unit 2 that is connected with the signal output part of image capture module 1 in the above-mentioned image processing and the structure of control unit and respectively based on candid photograph control unit 3B and the vehicle detection identification module 3A of DSP; The control end of image pretreatment unit 2 is connected with the drive circuit 1-1 of image capture module 1 and exports two paths of signals respectively to capturing control unit 3B and vehicle detection identification module 3A; Vehicle detection identification module 3A is connected with Network Interface Module 3-1 with candid photograph two-way connection of control unit 3B, the signal output part of capturing control unit 3B.
Center dies in the above-mentioned image pretreatment unit 2 is that model is the fpga chip of X3S3400A.
Center dies in the above-mentioned image capture module 1 is that model is the image sensitive chip of ICX274 or ICX265.
The model of the dsp chip among above-mentioned candid photograph control unit 3B and the vehicle detection identification module 3A all is DM642.
Also comprise in the circuit structure of above-mentioned video camera respectively and capture I/O interface circuit 3-2 that control unit 3B is connected, reach SD card circuit module 3-3.
The specialty that the utility model is a compact conformation, integrated level is high is used for electronic police illegal the taking pictures and technical grade Video Detection identification all-in-one that bayonet socket is captured of making a dash across the red light.A specific embodiment of the utility model, with have 2,000,000 pixels, model is that the ccd image sensor of ICX274, high performance FPGA are that image processing core, built-in couple of DSP are respectively as Video Detection CPU and Controlled CPU.The utility model integrates the function of the included digital camera of conditional electronic police capturing system or multiple cameras and equipment such as image acquisition device, digital image compression encoder, automobile video frequency detector, Network Transmission card, I/O control card, industrial control computer and storage hard disk, and having possessed need be by all functions of the integrated front end of plurality of devices in conditional electronic police's capturing system.
Integrated exclusive Video Detection of the utility model and car plate recognizer; Realize multinomial functions such as shooting, bayonet socket candid photograph, red light candid photograph; The function of video detector, CCD web camera, network capture machine, bayonet socket capture machine, red light capture machine is integrated among the equipment; Can be widely used in traffic block port vehicle registration system and the illegal electric police grasp shoot system of making a dash across the red light; Capture in the picture and comprise vehicle license clearly, the picture file afterbody appends information such as intersection information, car Taoist monastic name, shooting time, can fully reflect the vehicle pass-through state or as making a dash across the red light illegal ample evidence.After accomplishing candid photograph, equipment initiatively is reported to specified server with this machine address and intersection information, captures the ftp server that picture also will upload to appointment with file mode.
The utility model adopts the IP-based network transmission means, can insert IP network easily, and the IP transmission platform that utilizes telecommunications and other communication operator to provide carries out the picture transmission.Product both can directly insert original traditional electric police grasp shoot network, also can be very easy with new electric police grasp shoot system of many product composition.
The utility model provides outside light filling interface, can use the LED stroboscopic lamp by external general industry.Make it under the situation of low-light (level)s such as cloudy day, night, export the light filling triggering signal automatically, photograph high-quality picture.
The utility model has at first been selected the CCD chip of extensive use in the market when design, the ICX274 image sensitive chip of Sony Corporation, and resolution reaches 1600 * 1200, altogether the 2M pixel.The dateout form adopts the picture of mjpeg form to carry out file output.Through calculating, this chip is according to the output of per second 15 frames, and 1 two field picture needs the 24Mbps transmission bandwidth, so need select the main control chip of supporting the 100M network at least for use altogether through being compressed in 200KB.Take all factors into consideration performance and development difficulty; We select the X3S3400A of Xilinx company as front end image processing companion chip; Select the DM642 process chip of 2 Ti companies for use; As main control chip platform and image detection algorithm processing platform, form the double-core treatment system respectively, make system when identification detects, can not have influence on the response speed of outside input.
Fpga chip is realized the integrated treatment of image, makes full use of the full parallel processing performance of fpga chip, accomplishes the preliminary treatment and the image compression of image, alleviates back-end processing pressure.What influence the FPGA selection mainly is its power system capacity; We at first calculate the power system capacity of fpga chip; Through with the CCD of system drive control module, IMAQ and pretreatment module, the image compression module algorithm is analyzed after integrating; For guaranteeing that the similar H.264 video compression algorithm of later stage increase, MicroBlaze control contents such as soft nuclear, we have selected the bigger X3S3400A chip of capacity.DM642 has obtained market and developer's extensive approval as the DSP picture processing chip of a maturation, has a lot of ripe algorithms all accomplished on this platform, simplifies development difficulty greatly, promotes development rate.Ti company provides CCS IDE, and provides such as various bottom layer driving and algorithms libraries such as Network Transmission, has promoted program development efficient.
The utility model is when concrete the use, and image pretreatment unit 2 main bodys are FPGA, cooperates external drive circuit to realize that this part is used for the image capture module 1 of front end is driven, and completion CCD drives auxiliary signal and generates and control; Receive the view data of image capture module 1 simultaneously, and carry out image processing and picture compression according to setting the image processing parameter, output simultaneously is used for the image data and the YUV view data that is used to discern detection of final output.Image pretreatment unit 2 is handled all relevant image exposures in real time, the relevant processing of flash of light control.The RAW original image that this functional module is exported image capture module 1, and in real time image is carried out white balance, stretch processing, Gamma proofreaies and correct, the conversion of look control, noise reduction process, sharpening is handled; Through the yuv data after the data sharpening, output 2 tunnel: 1 road yuv data can continue in this image pretreatment unit 2, to carry out processed compressed synchronously, directly is compressed into jpeg data and sends to candid photograph control unit 3B; 1 road yuv data is directly exported to vehicle detection identification module 3A and is used for detecting and identification; Two paths of data is output fully synchronously, makes equipment integral carry out Video Detection to same frame data simultaneously and handle with monitoring.After image pretreatment unit 2 was configured to flash mode, image pretreatment unit 2 can start flashing light in the CCD actual exposure; When image capture module 1 does not make public, stop to export flashing light, thereby guarantee evenly light filling of every two field picture, reach the stroboscopic function, reduce system energy consumption.
Capture control unit 3B: this unit main body is DM642, accomplishes the application function that capture machine removes Video Detection, and this unit software processing module mainly comprises network communication; Video transmission, parameter storage, real-time clock; Control is captured in logic control, captures transmission; Flash of light, stroboscopic control interface and detect function such as identification module communication.This unit is saved in the interior video buffer queue through the jpeg data of image capture interface with 2 outputs of image pretreatment unit in real time; Simultaneously constantly to vehicle detection identification module 3A request detection and recognition result; After having notice; According to the internal time synchronization mechanism, the view data of corresponding this detection or recognition result is taken out from the video buffer formation, accomplish the coupling of image candid photograph and identifying information.This functional module makes up according to capturing signal characteristic, after receiving the complete bayonet socket or the signal that makes a dash across the red light, will put in order the group illegal activities and capture image and pack and upload or store.
Vehicle detection identification module 3A: this unit main body is DM642, accomplishes Video Detection, triggers and captures signal output, identification signal output function; Except that major function, the communication function of control section is accomplished and captured to this module simultaneously.The yuv data of image pretreatment unit 2 outputs is received in this unit, and on this input data basis, carries out Video Detection.When having detected vehicle and pass through, this unit quasi is got the detection triggering signal ready, and the communication interface through outside two DSP, candid photograph information is offered capture control unit 3B.When detecting, candid photograph information is offered capture control unit 3B simultaneously by the car plate identifying information.This unit is circulated a notice of the testing result of present image to capture image and detection and Identification result's consistency to capturing the control unit assurance in real time.
The utility model can be widely used in traffic block port vehicle registration system and the illegal electric police grasp shoot system of making a dash across the red light; Capture in the picture and comprise vehicle license clearly; The picture file afterbody appends information such as intersection information, car Taoist monastic name, shooting time, can fully reflect the vehicle pass-through state or as the illegal ample evidence of making a dash across the red light.After accomplishing candid photograph, equipment initiatively is reported to specified server with this machine address and intersection information, captures the ftp server that picture also will upload to appointment with file mode.Therefore, at traffic safety, especially some key crossings, the easy accident crossing of sending out adopt the high definition Internet video capture machine in the utility model to monitor the place in real time, induce vehicle pass-through, improve passage rate, minimizing accident occurrence frequency.The built-in full Vehicle License Plate Recognition System of the utility model is utilized technology such as advanced image processing, pattern recognition, and the passing motor vehicle of the lane in which the drivers should pay fees is carried out continuous all-weather real-time record; Computer carries out car plate according to the captured image of industrial camera and discerns automatically; Can deploy to ensure effective monitoring and control of illegal activities in real time to illegal vehicle and blacklist vehicle, realize the function of warning automatically, greatly improve the operating efficiency of traffic police department; Increase the scientific and technological content of highway administration; To law enforcement agency the foundation of enforcing the law reliably is provided, minimizing traffic accident, strike traffic accident and robber has been robbed vehicular events play an important role, will produce good social benefit.
Claims (5)
1. high definition network digital video camera that the relief road traffic administration is used; Comprise the image capture module (1) and supporting drive circuit (1-1), image processing and control unit and the Network Interface Module (3-1) that are arranged on the casing in the circuit structure; It is characterized in that: comprise the image pretreatment unit (2) that is connected with the signal output part of image capture module (1) in the structure of described image processing and control unit and respectively based on candid photograph control unit (3B) and the vehicle detection identification module (3A) of DSP; The control end of image pretreatment unit (2) is connected with the drive circuit (1-1) of image capture module (1) and exports two paths of signals respectively to capturing control unit (3B) and vehicle detection identification module (3A); Vehicle detection identification module (3A) is connected with Network Interface Module (3-1) with candid photograph two-way connection of control unit (3B), the signal output part of capturing control unit (3B).
2. the high definition network digital video camera that a kind of relief road traffic administration according to claim 1 is used is characterized in that: the center dies in the described image pretreatment unit (2) is that model is the fpga chip of X3S3400A.
3. the high definition network digital video camera that a kind of relief road traffic administration according to claim 1 is used is characterized in that: the center dies in the described image capture module (1) is that model is the image sensitive chip of ICX274 or ICX265.
4. the high definition network digital video camera that a kind of relief road traffic administration according to claim 1 is used is characterized in that: the model of the dsp chip in described candid photograph control unit (3B) and the vehicle detection identification module (3A) all is DM642.
5. the high definition network digital video camera that a kind of relief road traffic administration according to claim 1 is used is characterized in that: also comprise in the circuit structure of described video camera respectively and capture I/O interface circuit (3-2) that control unit (3B) is connected, reach SD card circuit module (3-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200601300U CN202455439U (en) | 2012-02-23 | 2012-02-23 | High definition network digital video camera for assisting road traffic control |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012200601300U CN202455439U (en) | 2012-02-23 | 2012-02-23 | High definition network digital video camera for assisting road traffic control |
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| CN202455439U true CN202455439U (en) | 2012-09-26 |
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| CN2012200601300U Expired - Lifetime CN202455439U (en) | 2012-02-23 | 2012-02-23 | High definition network digital video camera for assisting road traffic control |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794048A (en) * | 2012-11-02 | 2014-05-14 | 上海宝康电子控制工程有限公司 | High-definition-video detection gate and electronic police system and use method thereof |
| CN105118291A (en) * | 2015-09-07 | 2015-12-02 | 苏州市世跃智能科技有限公司 | Road traffic flow statistic comprehensive monitoring system |
| CN107393309A (en) * | 2017-08-31 | 2017-11-24 | 江苏开放大学 | A kind of electronic police system |
| CN114898566A (en) * | 2022-02-08 | 2022-08-12 | 合肥远康信息技术有限公司 | Wisdom bus video linkage snapshot functional system |
-
2012
- 2012-02-23 CN CN2012200601300U patent/CN202455439U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794048A (en) * | 2012-11-02 | 2014-05-14 | 上海宝康电子控制工程有限公司 | High-definition-video detection gate and electronic police system and use method thereof |
| CN105118291A (en) * | 2015-09-07 | 2015-12-02 | 苏州市世跃智能科技有限公司 | Road traffic flow statistic comprehensive monitoring system |
| CN107393309A (en) * | 2017-08-31 | 2017-11-24 | 江苏开放大学 | A kind of electronic police system |
| CN114898566A (en) * | 2022-02-08 | 2022-08-12 | 合肥远康信息技术有限公司 | Wisdom bus video linkage snapshot functional system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120926 |
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| CX01 | Expiry of patent term |