CN101577050A - Intelligent traffic digital monitor and application thereof - Google Patents
Intelligent traffic digital monitor and application thereof Download PDFInfo
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Abstract
The invention provides an intelligent traffic digital monitor integrating functions of camera, license plate recognition, snapping, speed measurement and network transmission. The monitor comprises a charge coupling camera, a front end circuit of the charge coupling camera and a field programmable gate array. The charge coupling camera acquires an image signal of an automobile; the front end circuit of the charge coupling camera reads out a BAYER formatted analog signal acquired by the charge coupling camera and converts the analog signal into a digital image signal; and the field programmable gate array converts the BAYER formatted digital image signal into an RGB formatted digital image signal, converts the RGB formatted digital image signal into a YUV formatted digital image signal, and simultaneously completes the vehicle license plate recognition and the compression of the YUV formatted digital image signal, judges whether the automobile violates the traffic rules according to the received ground induction coil trigger signal and traffic light control signal, and transmits license plate recognition, image compression and traffic violation data to the client through a network interface.
Description
Technical field
The invention belongs to field of traffic control, particularly a kind of intelligent traffic digital monitor and uses thereof.
Background technology
Along with expanding economy, motor vehicle is more and more, therefore must effectively manage the motor vehicle and the human pilot thereof that participate in traffic, otherwise traffic hazard will increase, and certainly will cause enormous economic loss and casualties.The generation of traffic hazard, often relevant with the traffic violation, it is particularly general wherein to drive over the speed limit, travel not according to the signal lamp indication, therefore, be necessary the motor vehicle speed that participates in traffic and whether travel and monitor, and car plate identification is the problem that must solve in the monitoring by the signal lamp indication.
About car plate identification with whether travel by the signal lamp indication, prior art is to finish by the system that is made up of video camera, image pick-up card and computing machine, monitoring about the speed of a motor vehicle, then also need on the basis of the said equipment, to dispose knotmeter, thereby complex structure, volume is big, the cost height, and used video camera is generally analog video camera, resolution generally lower (720*576).
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of intelligent traffic digital monitor is provided, this kind watch-dog not only integrates shooting, car plate is discerned, captured, tests the speed and Network Transmission, and simple in structure, volume is little, resolution is high, cost is low.
Intelligent traffic digital monitor of the present invention has following several version under a total inventive concept:
1, first kind of basic structure form
The intelligent traffic digital monitor of first kind of basic structure form comprises charge coup, charge coup front-end circuit and field programmable gate array.Charge coup is used for the picture signal of harvester motor-car, and the picture signal of being gathered is the simulating signal of BAYER form; Charge coup front-end circuit programmable gate array control at the scene produces down and meets the driving sequential of charge coup interface voltage requirement and drive charge coup, sends field programmable gate array to after reading the BAYER format-pattern simulating signal of charge coup collection and being converted into the data image signal of BAYER form; The data image signal of the BAYER form of field programmable gate array self charge coupling in the future picture pick-up device front-end circuit is converted to the data image signal of rgb format, again the data image signal of rgb format is converted to the data image signal of yuv format, finish car plate identification according to the data image signal of yuv format then, and the data image signal of yuv format compressed, and by A trigger pip interface, B trigger pip interface, the traffic lights signaling interface receives ground induction coil trigger pip and traffic lights control signal, judge whether break in traffic rules and regulations of motor vehicle according to ground induction coil trigger pip and traffic lights control signal, by network interface with license plate identification data and image compression data or license plate identification data, image compression data and break in traffic rules and regulations data are sent to coupled client.
On the basis of said structure, can increase voltage conversion circuit, the driving sequential that field programmable gate array is produced by voltage conversion circuit converts to and meets the driving sequential that the charge coup interface voltage requires and send charge coup to, the charge coup front-end circuit no longer has the function that drives charge coup, sends field programmable gate array to after only finishing BAYER format-pattern simulating signal of reading the charge coup collection and the data image signal that is converted into the BAYER form.
2, second kind of basic structure form
The intelligent traffic digital monitor of second kind of basic structure form is to have increased digital signal processor on the basis of first kind of basic structure form, promptly comprises charge coup, charge coup front-end circuit, field programmable gate array and digital signal processor.Charge coup is used for the picture signal of harvester motor-car, and the picture signal of being gathered is the simulating signal of BAYER form; The charge coup front-end circuit produces the driving sequential that meets the requirement of charge coup interface voltage and drives charge coup under DSP CONTROL, send field programmable gate array to after reading the BAYER format-pattern simulating signal of charge coup collection and being converted into the data image signal of BAYER form; The data image signal of the BAYER form of field programmable gate array self charge coupling in the future picture pick-up device front-end circuit is converted to the data image signal of rgb format, again the data image signal of rgb format is converted to the data image signal of yuv format, and by A trigger pip interface, B trigger pip interface, the traffic lights signaling interface receives ground induction coil trigger pip and traffic lights control signal, judge whether break in traffic rules and regulations of motor vehicle according to ground induction coil trigger pip and traffic lights control signal, data image signal and the break in traffic rules and regulations data with yuv format send digital signal processor to then; Digital signal processor is finished car plate identification according to the data image signal of the yuv format that receives, and the data image signal of yuv format compressed, by network interface license plate identification data and image compression data or license plate identification data, image compression data and break in traffic rules and regulations data are sent to coupled client.
On the basis of said structure, can increase voltage conversion circuit, the driving sequential that field programmable gate array is produced by voltage conversion circuit converts to and meets the driving sequential that the charge coup interface voltage requires and send charge coup to, the charge coup front-end circuit no longer has the function that drives charge coup, sends field programmable gate array to after only finishing BAYER format-pattern simulating signal of reading the charge coup collection and the data image signal that is converted into the BAYER form.
3, the third basic structure form
The intelligent traffic digital monitor of the third basic structure form is to have increased image compressor and microprocessor on the basis of second kind of basic structure form, promptly comprises charge coup, charge coup front-end circuit, field programmable gate array, digital signal processor, image compressor and microprocessor.Charge coup is used for the picture signal of harvester motor-car, and the picture signal of being gathered is the simulating signal of BAYER form; The charge coup front-end circuit produces under microprocessor control and meets the driving sequential of charge coup interface voltage requirement and drive charge coup, sends field programmable gate array to after reading the BAYER format-pattern simulating signal of charge coup collection and being converted into the data image signal of BAYER form; The data image signal of the BAYER form of programmable gate array self charge coupling in the future picture pick-up device front-end circuit is converted to the data image signal of rgb format, transmit to digital signal processor and image compressor respectively after again the data image signal of rgb format being converted to the data image signal of yuv format, and by A trigger pip interface, B trigger pip interface, the traffic lights signaling interface receives ground induction coil trigger pip and traffic lights control signal, judge whether break in traffic rules and regulations of motor vehicle according to ground induction coil trigger pip and traffic lights control signal, and send the break in traffic rules and regulations data to microprocessor; Digital signal processor is finished car plate identification and is sent license plate identification data to microprocessor according to the data image signal of the yuv format that receives; Image compressor sends microprocessor to after the data image signal of the yuv format that receives is compressed; Microprocessor is sent to coupled client by network interface with license plate identification data and image compression data or license plate identification data, image compression data and break in traffic rules and regulations data.
On the basis of said structure, can increase voltage conversion circuit, the driving sequential that field programmable gate array is produced by voltage conversion circuit converts to and meets the driving sequential that the charge coup interface voltage requires and send charge coup to, the charge coup front-end circuit no longer has the function that drives charge coup, sends field programmable gate array to after only finishing BAYER format-pattern simulating signal of reading the charge coup collection and the data image signal that is converted into the BAYER form.
Intelligent traffic digital monitor of the present invention can the monitoring equipment motor-car make a dash across the red light and automobile overspeed aspect use.
1, the described monitoring equipment motor-car application of aspect of making a dash across the red light, step is as follows:
1. at monitoring signalization pilot lamp place, highway section intelligent traffic digital monitor of the present invention is installed;
2. at the floor mounted B of stop line place ground induction coil, establish Pb and be have motor vehicle by the time circuit that links to each other with the B ground induction coil pulse that produces;
3. be under the state of red light at signal lamp, the field programmable gate array in the intelligent traffic digital monitor of the present invention is if receive upper edge or the lower edge of Pb, and then expression has motor vehicle to make a dash across the red light, and promptly produces to capture signal, and record is captured former because make a dash across the red light.
2, the application of described monitoring automobile overspeed aspect, step is as follows:
1. in the monitoring highway section intelligent traffic digital monitor of the present invention is installed;
2. at the floor mounted B of the place ground induction coil that tests the speed, with B ground induction coil distance be the floor mounted A ground induction coil of L, if Pa be have motor vehicle by the time circuit that links to each other with the A ground induction coil pulse that produces, Pb be have motor vehicle by the time circuit generation that links to each other with the B ground induction coil pulse;
3. the field programmable gate array in the intelligent traffic digital monitor of the present invention is if receive upper edge or the lower edge of Pa, Pb, then calculate T interval time of pulse Pa, pulse Pb, with the interval time T of the distance L between A ground induction coil, the B ground induction coil divided by pulse Pa, pulse Pb, obtain motor vehicle speed V, when the speed of a motor vehicle exceeds the speed limit, produce and capture signal, and record captures former because hypervelocity.
The present invention has following beneficial effect:
1, integrates shooting, car plate and discern, capture, test the speed and the novel intelligent traffic digital watch-dog of Network Transmission for traffic administration provides a kind of.
2, compared with prior art, intelligent traffic digital monitor of the present invention has that volume is little, cost is low, high reliability features, and bigger market outlook are arranged.
Description of drawings
Fig. 1 is first kind of structured flowchart of intelligent traffic digital video camera of the present invention;
Fig. 2 is second kind of structured flowchart of intelligent traffic digital video camera of the present invention;
Fig. 3 is the third structured flowchart of intelligent traffic digital video camera of the present invention;
Fig. 4 is the 4th a kind of structured flowchart of intelligent traffic digital video camera of the present invention;
Fig. 5 is the 5th a kind of structured flowchart of intelligent traffic digital video camera of the present invention;
Fig. 6 is the 6th a kind of structured flowchart of intelligent traffic digital video camera of the present invention;
Fig. 7 is the Bayer arrangement mode figure of light sensitive pixels cell array in the charge coup (CCD);
Fig. 8 is the synoptic diagram that motor vehicle is monitored;
Whether by signal lamp indication travel Fig. 9 monitor the process flow diagram of (candid photograph) if being field programmable gate array (FPGA) to motor vehicle;
Figure 10 is whether field programmable gate array (FPGA) is driven over the speed limit to motor vehicle and monitored the process flow diagram of (candid photograph);
Figure 11 is a process flow diagram of finishing car plate identification according to the data image signal of yuv format;
Figure 12 is that the flow process of microprocessor is always schemed;
Figure 13 is the process flow diagram of the correlation timing control register of initialization charge coup front-end circuit among Figure 12;
Figure 14 is the process flow diagram of the relevant control register of initialisation image compressor reducer among Figure 12;
Figure 15 is the process flow diagram of Network Transmission.
Among the figure, 1-charge coup, 2-charge coup front-end circuit, 3-field programmable gate array, 4-A trigger pip interface, 5-B trigger pip interface, 6-traffic lights signaling interface, 7-network interface, 8-digital signal processor, 9-image compressor, 10-microprocessor, 11-voltage conversion circuit, 12-have motor vehicle by the time circuit that links to each other with the A ground induction coil pulse Pa, the 13-that produce have motor vehicle by the time circuit generation that links to each other with the B ground induction coil pulse Pb, 14-A ground induction coil, 15-B ground induction coil, 16-stop line.
Embodiment
Be described further below in conjunction with the concrete structure and the purposes of accompanying drawing intelligent traffic digital video camera of the present invention.
In the present embodiment, the structure of intelligent traffic digital video camera comprises charge coup 1, charge coup front-end circuit 2, field programmable gate array 3, A trigger pip interface 4, B trigger pip interface 5, traffic lights signaling interface 6 and network interface 7 as shown in Figure 1.Charge coup front-end circuit 2 is connected with field programmable gate array 3 with charge coup 1 respectively, and field programmable gate array 3 is connected with A trigger pip interface 4, B trigger pip interface 5, traffic lights signaling interface 6 and network interface 7.
Charge coup front-end circuit 2 is produced by the design of ANALOG DEVICES company, model AD9923A, and physical circuit is with reference to the disclosed data of ANALOG DEVICES company's site.This circuit control of programmable gate array 3 at the scene produces down and meets the driving sequential that the charge coup interface voltage requires and drive charge coup, sends field programmable gate array 3 to after reading the BAYER format-pattern simulating signal of charge coup collection and being converted into the data image signal of BAYER form.
Field programmable gate array 3 is produced by the design of Xilinx company, model XC5VFX200T, and physical circuit is with reference to the disclosed data of Xilinx company's site.Field programmable gate array 3 is finished: the data image signal of BAYER form to the data image signal of rgb format again to the conversion of the data image signal of yuv format; Car plate identification; The compression of the data image signal of yuv format; The monitoring of automobile traffic (make a dash across the red light, exceed the speed limit) violating the regulations; License plate identification data and image compression data or license plate identification data, image compression data and break in traffic rules and regulations data are to the transmission of client.
The data image signal of BAYER form to the conversion of the data image signal of rgb format (with among Fig. 76,7,10,11 be the example explanation):
If 6,7,10,11 rgb value is respectively R6, G6, B6, R7, G7, B7, R10, G10, B10, R11, G11, B11 among Fig. 7, represent the magnitude of voltage that each point obtains through correlated-double-sampling with V1, V2, V3......V16.Then the computing method of the RGB of each point are:
R6＝(V5+V7)/2
G6＝V6
B6＝(V2+V10)/2
R7＝V7
G7＝(V3+V6+V8+V11)/4
B7＝(V2+V4+V10+V12)/4
R10＝(V5+V7+V13+V15)/4
G10＝(V6+V9+V11+V14)/4
B10＝V10
R11＝(V7+V15)/2
G11＝V11
B11＝(V10+V12)/2
The data image signal of rgb format is to the conversion of the data image signal of yuv format:
If R, G, B, Y, Cr, Cb are the analog value of transfer point, precision is 8 integers, and the algorithm that is calculated Y, Cr, Cb signal value by R, G, B signal value is:
Y＝0.299*R+0.587*G+0.114*B
Cr＝(R-Y)*0.7295+128
Cb＝(B-Y)*0.5772+128
The data image signal compression of yuv format: compression algorithm is with reference to " international many gray scales rest image digital compression coding standard ", and standard No. is ISO 10918-1.
The flow process of car plate identification is seen Figure 11, comprises that car plate location, license plate sloped correction, characters on license plate are cut apart, the eigenwert conversion, discerns car plate according to the sample character library.The car plate recognizer is with reference to " research of car plate recognizer and realization " (Huang is defended for what iron army, Zhang Ning, highway communication science and technology, the 23rd the 8th phase of volume, in August, 2006).
The motor vehicle monitoring of making a dash across the red light:
1. at monitoring signalization pilot lamp place, highway section intelligent traffic digital monitor of the present invention is installed;
2. as shown in Figure 8, at the floor mounted B of stop line place ground induction coil 15, establish Pb and be have motor vehicle by the time circuit that links to each other with the B ground induction coil pulse that produces;
3. as shown in Figure 9, at signal lamp is under the state of red light, and the field programmable gate array 3 in the intelligent traffic digital monitor of the present invention is if receive the upper edge of Pb, and then expression has motor vehicle to make a dash across the red light, promptly produce and capture signal, record is captured former because make a dash across the red light.
The automobile overspeed monitoring:
1. at monitoring signalization pilot lamp place, highway section intelligent traffic digital monitor of the present invention is installed;
2. as shown in Figure 8, at the floor mounted B of the place ground induction coil that tests the speed, with B ground induction coil distance be the floor mounted A ground induction coil of L, establish Pa and be have motor vehicle by the time circuit generation that links to each other with the A ground induction coil pulse, Pb be have motor vehicle by the time circuit generation that links to each other with the B ground induction coil pulse;
3. as shown in figure 10, field programmable gate array 3 in the intelligent traffic digital monitor of the present invention is if receive the upper edge of Pa, Pb, then calculate T interval time of pulse Pa, pulse Pb, with the interval time T of the distance L between A ground induction coil, the B ground induction coil divided by pulse Pa, pulse Pb, obtain motor vehicle speed V, when the speed of a motor vehicle exceeds the speed limit, produce and capture signal, and record captures former because hypervelocity.
Data are seen Figure 15 to the transfer process of client.
The network interface chip that network interface 7 is produced by Realtek company, model is RTL8201, physical circuit is with reference to the disclosed data of Realtek company's site.
A trigger pip interface 4, B trigger pip interface 5 and traffic lights signaling interface 6 adopt universal input/output interface (GPIO).
In the present embodiment, the structure of intelligent traffic digital video camera as shown in Figure 4.Difference from Example 1 is to have increased voltage conversion circuit 11, and the input end of voltage conversion circuit 11 is connected with field programmable gate array 3, and its output terminal is connected with charge coup 1.Voltage conversion circuit 11 is produced by Sony Corporation's design, model C XD3400, and physical circuit is with reference to the disclosed data in Sony Corporation website; The manufacturing enterprise of charge coup 1, charge coup front-end circuit 2, field programmable gate array 3, A trigger pip interface 4, B trigger pip interface 5, traffic lights signaling interface 6 and network interface 7 is identical with embodiment 1 with model.
Compare with embodiment 1, field programmable gate array 3 in the present embodiment has increased to charge coup 1 provides the function that drives sequential and (has driven timing Design with reference to Sony Corporation: the IXC274 databook), the driving sequential that voltage conversion circuit 11 produces field programmable gate array 3 converts to and meets the driving sequential that the charge coup interface voltage requires and send charge coup to, is used to drive charge coup; 2 of charge coup front-end circuits have reduced function, send field programmable gate array 3 to after only finishing BAYER format-pattern simulating signal of reading the charge coup collection and the data image signal that is converted into the BAYER form.
In the present embodiment, the structure of intelligent traffic digital video camera as shown in Figure 2.Difference from Example 1 is to have increased digital signal processor 8, and digital signal processor 8 is connected with charge coup front-end circuit 2, field programmable gate array 3 and network interface 7 respectively.Digital signal processor 8 is chips of being produced by TI company, and model is TMS320DM642, and physical circuit is with reference to the disclosed data of TI company's site.The manufacturing enterprise of charge coup 1, charge coup front-end circuit 2, field programmable gate array 3, A trigger pip interface 4, B trigger pip interface 5, traffic lights signaling interface 6 and network interface 7 is identical with embodiment 1 with model.
Compare with embodiment 1, the field programmable gate array 3 in the present embodiment has reduced function, and the function of its minimizing is finished by digital signal processor 8.Digital signal processor 8 is finished: control charge coup front-end circuit 2 produces the driving sequential that meets the requirement of charge coup interface voltage; Finish car plate identification according to the data image signal of the yuv format that receives, and the data image signal of yuv format is compressed; By network interface 7 license plate identification data and image compression data or license plate identification data, image compression data and break in traffic rules and regulations data are sent to coupled client.
In the present embodiment, the structure of intelligent traffic digital video camera as shown in Figure 5.Difference from Example 3 is to have increased voltage conversion circuit 11, and the input end of voltage conversion circuit 11 is connected with field programmable gate array 3, and its output terminal is connected with charge coup 1.The production company of voltage conversion circuit 11 is identical with embodiment 2 with model; The manufacturing enterprise of charge coup 1, charge coup front-end circuit 2, field programmable gate array 3, A trigger pip interface 4, B trigger pip interface 5, traffic lights signaling interface 6 and network interface 7 and digital signal processor 8 is identical with embodiment 3 with model.
Compare with embodiment 3, field programmable gate array 3 in the present embodiment has increased the function that the driving sequential is provided for charge coup 1, the driving sequential that voltage conversion circuit 11 produces field programmable gate array 3 converts to and meets the driving sequential that the charge coup interface voltage requires and send charge coup to, is used to drive charge coup; 8 of charge coup front-end circuit 2 and digital signal processors have reduced function.The function of charge coup front-end circuit 2 is: send field programmable gate array 3 to after reading the BAYER format-pattern simulating signal of charge coup collection and being converted into the data image signal of BAYER form; The function of digital signal processor 8 is: finish car plate identification according to the data image signal of the yuv format that receives, and the data image signal of yuv format is compressed; By network interface 7 license plate identification data and image compression data or license plate identification data, image compression data and break in traffic rules and regulations data are sent to coupled client.
In the present embodiment, the structure of intelligent traffic digital video camera as shown in Figure 3.Difference from Example 1 is to have increased digital signal processor 8, image compressor 9 and microprocessor 10.Microprocessor 10 is connected with picture pick-up device front-end circuit 2, field programmable gate array 3, digital signal processor 8, image compressor 9 and network interface 7 respectively, and digital signal processor 8 also is connected with field programmable gate array 3 with image compressor 9.Digital signal processor 8 is chips of being produced by TI company, and model is TMS320DM642, and physical circuit is with reference to the disclosed data of TI company's site; Image compressor 9 is produced by TOKYO company, and model is TE3310RPF, is a kind of high speed image compression integrated circuit, and physical circuit is with reference to the disclosed data of TOKYO company's site; Microprocessor 10 is produced by atmel corp, and model is AT91RM9200, and physical circuit is with reference to the disclosed data in atmel corp website.The manufacturing enterprise of charge coup 1, charge coup front-end circuit 2, field programmable gate array 3, A trigger pip interface 4, B trigger pip interface 5, traffic lights signaling interface 6 and network interface 7 is identical with embodiment 1 with model.
Compare with embodiment 1, the field programmable gate array 3 in the present embodiment has reduced function, and the function of its minimizing is finished by digital signal processor 8, image compressor 9 and microprocessor 10 respectively.The function of digital signal processor 8: according to finishing car plate identification from the data image signal of the yuv format of field programmable gate array 3 and sending license plate identification data to microprocessor 6; The function of image compressor 5: will send microprocessor 6 to after the data image signal compression from the yuv format of field programmable gate array 3; The function of microprocessor 10: control charge coup front-end circuit 2 produces the driving sequential that meets the requirement of charge coup interface voltage; By network interface 7 license plate identification data and image compression data or license plate identification data, image compression data and break in traffic rules and regulations data are sent to coupled client; To the correlation timing control register initialization of charge coup front-end circuit, to the relevant control register initialization of image compressor.Figure 12, Figure 13, the described software of Figure 14, Figure 15 have been installed in the microprocessor 10.
In the present embodiment, the structure of intelligent traffic digital video camera as shown in Figure 6.Difference from Example 5 is to have increased voltage conversion circuit 11, and the input end of voltage conversion circuit 11 is connected with field programmable gate array 3, and its output terminal is connected with charge coup 1.The production company of voltage conversion circuit 11 is identical with embodiment 2 with model; The manufacturing enterprise of charge coup 1, charge coup front-end circuit 2, field programmable gate array 3, A trigger pip interface 4, B trigger pip interface 5, traffic lights signaling interface 6, network interface 7, digital signal processor 8, image compressor 9 and microprocessor 10 is identical with embodiment 5 with model.
Compare with embodiment 5, field programmable gate array 3 in the present embodiment has increased the function that the driving sequential is provided for charge coup 1, the driving sequential that voltage conversion circuit 11 produces field programmable gate array 3 converts to and meets the driving sequential that the charge coup interface voltage requires and send charge coup to, is used to drive charge coup; 10 of charge coup front-end circuit 2 and microprocessors have reduced function.The function of charge coup front-end circuit 2 is: send field programmable gate array 3 to after reading the BAYER format-pattern simulating signal of charge coup collection and being converted into the data image signal of BAYER form; The function of microprocessor 10: license plate identification data and image compression data or license plate identification data, image compression data and break in traffic rules and regulations data are sent to coupled client by network interface 7; To the correlation timing control register initialization of charge coup front-end circuit, to the relevant control register initialization of image compressor.
Claims (10)
1, a kind of intelligent traffic digital monitor is characterized in that comprising charge coup (1), charge coup front-end circuit (2) and field programmable gate array (3),
Charge coup (1) is used for the picture signal of harvester motor-car, and the picture signal of being gathered is the simulating signal of BAYER form,
Charge coup front-end circuit (2) the following generation of programmable gate array (3) control at the scene meets the driving sequential of charge coup interface voltage requirement and drives charge coup, send field programmable gate array (3) to after reading the BAYER format-pattern simulating signal of charge coup collection and being converted into the data image signal of BAYER form
The data image signal of the BAYER form of field programmable gate array (3) self charge coupling picture pick-up device front-end circuit in future (2) is converted to the data image signal of rgb format, again the data image signal of rgb format is converted to the data image signal of yuv format, finish car plate identification according to the data image signal of yuv format then, and the data image signal of yuv format compressed, and by A trigger pip interface (4), B trigger pip interface (5), traffic lights signaling interface (6) receives ground induction coil trigger pip and traffic lights control signal, judge whether break in traffic rules and regulations of motor vehicle according to ground induction coil trigger pip and traffic lights control signal, by network interface (7) with license plate identification data and image compression data or license plate identification data, image compression data and break in traffic rules and regulations data are sent to coupled client.
2, intelligent traffic digital monitor according to claim 1, it is characterized in that also comprising voltage conversion circuit (11), the driving sequential that voltage conversion circuit (11) produces field programmable gate array (3) converts to and meets the driving sequential that the charge coup interface voltage requires and send charge coup to, and charge coup front-end circuit (2) sends field programmable gate array (3) to after reading the BAYER format-pattern simulating signal of charge coup collection and being converted into the data image signal of BAYER form.
3, a kind of intelligent traffic digital monitor is characterized in that comprising charge coup (1), charge coup front-end circuit (2), field programmable gate array (3) and digital signal processor (8),
Charge coup (1) is used for the picture signal of harvester motor-car, and the picture signal of being gathered is the simulating signal of BAYER form,
Charge coup front-end circuit (2) produces under digital signal processor (8) control and meets the driving sequential of charge coup interface voltage requirement and drive charge coup, send field programmable gate array (3) to after reading the BAYER format-pattern simulating signal of charge coup collection and being converted into the data image signal of BAYER form
The data image signal of the BAYER form of field programmable gate array (3) self charge coupling picture pick-up device front-end circuit in future (2) is converted to the data image signal of rgb format, again the data image signal of rgb format is converted to the data image signal of yuv format, and by A trigger pip interface (4), B trigger pip interface (5), traffic lights signaling interface (6) receives ground induction coil trigger pip and traffic lights control signal, judge whether break in traffic rules and regulations of motor vehicle according to ground induction coil trigger pip and traffic lights control signal, data image signal and the break in traffic rules and regulations data with yuv format send digital signal processor (8) to then;
Digital signal processor (8) is finished car plate identification according to the data image signal of the yuv format that receives, and the data image signal of yuv format compressed, by network interface (7) license plate identification data and image compression data or license plate identification data, image compression data and break in traffic rules and regulations data are sent to coupled client.
4, intelligent traffic digital monitor according to claim 3, it is characterized in that also comprising voltage conversion circuit (11), the driving sequential that voltage conversion circuit (11) produces field programmable gate array (3) converts to and meets the driving sequential that the charge coup interface voltage requires and send charge coup to, and charge coup front-end circuit (2) sends field programmable gate array (3) to after reading the BAYER format-pattern simulating signal of charge coup collection and being converted into the data image signal of BAYER form.
5, a kind of intelligent traffic digital monitor, it is characterized in that comprising charge coup (1), charge coup front-end circuit (2), field programmable gate array (3), digital signal processor (8), image compressor (9) and microprocessor (10)
Charge coup (1) is used for the picture signal of harvester motor-car, and the picture signal of being gathered is the simulating signal of BAYER form,
Charge coup front-end circuit (2) produces under microprocessor control and meets the driving sequential of charge coup interface voltage requirement and drive charge coup, send field programmable gate array (3) to after reading the BAYER format-pattern simulating signal of charge coup collection and being converted into the data image signal of BAYER form
The data image signal of the BAYER form of field programmable gate array (3) self charge coupling picture pick-up device front-end circuit in future (2) is converted to the data image signal of rgb format, transmit to digital signal processor (8) and image compressor (9) respectively after again the data image signal of rgb format being converted to the data image signal of yuv format, and by A trigger pip interface (4), B trigger pip interface (5), traffic lights signaling interface (6) receives ground induction coil trigger pip and traffic lights control signal, judge whether break in traffic rules and regulations of motor vehicle according to ground induction coil trigger pip and traffic lights control signal, and send the break in traffic rules and regulations data to microprocessor (10)
Digital signal processor (8) is finished car plate identification and is sent license plate identification data to microprocessor (6) according to the data image signal of the yuv format that receives,
Image compressor (5) sends microprocessor to after the data image signal of the yuv format that receives is compressed,
Microprocessor (6) is sent to coupled client by network interface (7) with license plate identification data and image compression data or license plate identification data, image compression data and break in traffic rules and regulations data.
6, intelligent traffic digital monitor according to claim 5, it is characterized in that also comprising voltage conversion circuit (11), the driving sequential that voltage conversion circuit (11) produces field programmable gate array (3) converts to and meets the driving sequential that the charge coup interface voltage requires and send charge coup to, and charge coup front-end circuit (2) sends field programmable gate array (3) to after reading the BAYER format-pattern simulating signal of charge coup collection and being converted into the data image signal of BAYER form.
7, in the claim 1 to 6 the described intelligent traffic digital monitor of arbitrary claim in the application of monitoring equipment motor-car aspect making a dash across the red light.
8, application according to claim 7 is characterized in that step is as follows:
1. at monitoring signalization pilot lamp place, highway section the described intelligent traffic digital monitor of arbitrary claim in the claim 1 to 6 is installed;
2. at the floor mounted B of stop line place ground induction coil (15), establish Pb (13) for have motor vehicle by the time circuit generation that links to each other with the B ground induction coil pulse;
3. be under the state of red light at signal lamp, field programmable gate array (3) in the claim 1 to 6 in the described intelligent traffic digital monitor of arbitrary claim is if receive upper edge or the lower edge of Pb, then expression has motor vehicle to make a dash across the red light, promptly produce and capture signal, record is captured former because make a dash across the red light.
9, the application of the described intelligent traffic digital monitor of arbitrary claim aspect the monitoring automobile overspeed in the claim 1 to 6.
10, application according to claim 9 is characterized in that step is as follows:
1. in the monitoring highway section the described intelligent traffic digital monitor of arbitrary claim in the claim 1 to 6 is installed;
2. at the place's floor mounted B ground induction coil (15) that tests the speed, with B ground induction coil (15) distance be the floor mounted A ground induction coil (14) of L, if Pa (12) for have motor vehicle by the time circuit that links to each other with the A ground induction coil pulse that produces, Pb (13) for have motor vehicle by the time circuit generation that links to each other with the B ground induction coil pulse;
3. in the claim 1 to 6 field programmable gate array (3) in the described intelligent traffic digital monitor of arbitrary claim if receive upper edge or the lower edge of Pa, Pb, then calculate T interval time of pulse Pa, pulse Pb, with the interval time T of the distance L between A ground induction coil (14), the B ground induction coil (15) divided by pulse Pa, pulse Pb, obtain motor vehicle speed V, when the speed of a motor vehicle exceeds the speed limit, produce and capture signal, and record captures former because hypervelocity.
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