中英文资料

中英文资料

system function

real-time images recorded by the vehicle

license

plate

recognition

system

to

provide

physical

testing

of

vehicles

identified

by

the

two

methods

and

software

algorithms,

both

externally

and

internally.

External

use

of

the

principle

of

electromagnetic

induction

test

vehicle

when

the

vehicle through

the detection coil, the system automatically in

real

time through the vehicle to capture two images, one for the color panorama, for

human eyes to determine

visual models, condition and body color; Another

one for the

front color images

for

human or machine

readable license plate,

catch rate of

more

than 99% (speed

range 0 ~ 200KM /

H

time);

no smoke

case, during the day and clearly identify the vehicle and the characteristics of

the entire body conditions,

night and

the

whole body

features of the

vehicle

license as clear.

The internal signal is based on computer vision, meaning that the visual

image

signal

is

extracted

from

the

scene

change

information

to

determine

whether

the

vehicle

is

entering

the

monitored

area,

and

then

start

sending

signals throughout the system works.

automatically save captured images of vehicles

The saved image as 24-bit true color image, the image resolution is 768 ×

576 pixels, JPEG compression format; save the image are covered by way of

recycling old images automatically overwrite the previous month.

car license plate recognition

Vehicles

on

the

image

captured

in

real

time

vehicle

license

plate

recognition,

license

plate

recognition

using

advanced

computer

visual

recognition technology to identify ten Arab figures 0-9, AZ

Twenty-six

upper

case letters and related characters, and can identify the black , white, yellow

and blue

license plate colors. System to identify

the line with

type

license)

and

(02

type

new

license)

standard

civilian

vehicle licenses and military vehicles, police cars and other special license of

the Chinese characters, letters,

numbers, colors and other information . No

smoke in the environment, the system during

the day and

the actual

license

plate recognition results consistent with four or more than 95% recognition rate,

the night and the actual license plate recognition results consistent with four or

more than 95% recognition rate.

real-time measurement of vehicles per hour and drivers

Can be measured in real time through the vehicle's speed, speed range of

5-80Km

/

h

speed

range,

the

measured

speed

value

and

the

actual

speed

value of the error within ±

3%; in

the 80-140Km /

h speed

range, measured

value and the actual speed of the speed error at ±

5% or less; in the 140Km / h

over the speed of the speed values

measured value and the actual error rate

of less

than ±

8%. System, the

length of the

vehicle real-time measurement

error was less than 1 m, and the color combination of license plate recognition

models can be automatically analyzed, can distinguish between large vehicles,

small vehicles and special vehicles and other models.

Real-time alarm function

Vehicle for speeding and was stealing the vehicle and traffic hit and run in

real time alarm.

When the user pre-set by the vehicle exceeds the speed limit, the system

can immediately at the scene to sound the alarm to alert staff on duty by a

speeding vehicles; the same time the system will automatically transmit alarm

information to the monitoring center, the center surveillance. Alarm information

including license plate number, vehicle speed, vehicle, vehicles through time,

the vehicle pictures.

When

using

the

vehicle

entered

by

the

user

prior

robbery

and

other

vehicles or traffic hit and run vehicle license numbers and vehicle information

features such as match, the system can immediately at the scene to sound the

alarm

to

alert

staff

on

duty

suspicious

vehicle

through;

the

same

time

The

system will transmit alarm information to the monitoring center, and 110 or 122

system

combines

the

catch

to

escape.

Alarm

information

including

license

plate

number,

vehicle

speed,

vehicle,

vehicles

through

time,

the

vehicle

pictures. Have the data center and the traffic police or public security features

for data exchange, and real-time information about the alarm upload vehicle.

Vehicle Data Management

Through

the

lens

mount

system

records

information

on

each

vehicle,

including

license plate

number,

vehicle speed,

vehicle, elapsed time,

vehicle

images, and stored in

the database, mount on the past statistical

traffic flow

information, and provides easy The data search and browsing, alarm settings,

and

operating

means.

Able

by

time,

speed,

vehicle,

vehicle

license,

driving

direction and other conditions

to find,

list display, playback history; a

vehicle

query statistics, traffic statistics curve printing; with fuzzy queries and precise

query

capabilities

to

provide

management

for

the

command

center

and

command data.

unique B / S network architecture

WEB search function with can be any computer within the network port on

the

remote

query

card

information

through

the

vehicle,

according

to

time,

speed, model, license plate, direction and other conditions, check and print

records, and has fuzzy inquiry function.

work around the clock

The

system

can

be

set

data

retention

time,

and

can

automatically

overwrite the image data loop, the system can store images at least 100 million

vehicles. Can be no duty, when the system crashes when the case of failure,

automatic restart. The site can be remotely suspected of vehicle parameters,

the data on the site for maintenance.

Performance

Vehicle capture rate: ≥ 99%

License plate recognition rate: the whole brand recognition rate of ≥ 90%

≥ 95% over four matches

Identification time: ≤ 150mS

Speed range: 5-180Km / h

Speed Error: 5-

80Km / h ≤ ± 3% when

80-

120 Km / h ≤ ± 5% when

120 Km / h ≤ ± 10% above

Car length error: ≤ ± 10%

Image Resolution: 752 ×

582 pixel

Color Mode: RGB

Compression format: JPEG

Image size: 40K or so

Cycling image number: two, a panoramic image, a license plate (head) image

Data format: After a time the vehicle, license plate number, license plate color,

speed, vehicle length, super-

Speed record, driving directions, front image, panoramic image

Camera Protection class: IP55

Normal working temperature: -30

℃

~ +80

℃

Working humidity: ≤ 95%;

Protection class: IP55 compliance standards;

Power range: 220V 50Hz ±

10%

System MTBF: 30,000 hours;

Systems Network Architecture

System network architecture as shown above, the system including data

servers,

user

terminals,

mount

applications

and

access

network

of

communication.

After

application

of

the

bayonet

mount

of

all

road

vehicles

to

capture,

access to vehicle images, automatic license plate character recognition in real

time, record the elapsed time of vehicles, speed, model, license plate number

and

direction

of

the

data.

Data

server

for

real-time

data

collection

mount

system, save vehicle information.

Features:

◆

expansion can easily mount workstation.

◆

bayonet system on

the data collected for secondary protection, reducing

damage

due

to

the

hard

disk

the

risk

of

data

loss,

reduce

the

burden

on

system

memory

card

port

to

ensure

its

stability

to

work

properly.

Real-time

collection of data server

mount the image acquisition system, so the system

can not mount a large hard drive. At the same time as image files small, less

disk fragmentation and improve

the system stability, disk scanning easier.

If

the exception is

temporarily off

the

network, mount

the system

will save the

image to the local, waiting for the collection of data server, so ensure that the

information collected will not be lost.

◆

centralized

management

of

data.

All

vehicle

information

(not

including

pictures)

are

collected

to

the

database

server

to

facilitate

centralized

data

management and data backup.

◆

convenient query. Users can query the statistics, adding police vehicles, to

see the real-time display of the bayonet.

◆

flexible networking. According to mount, increasing convenience to reduce

the data server, data query server service software upgrades without the need

to adjust.

mount applications

Mount vehicle monitoring and recording system part by the host computer,

image

acquisition

to

capture

part

of

the

measurement

part

of

the

vehicle

detection, automatic control of auxiliary optical parts, power supply parts and

components of other applications.

Workflow

When a car through the bayonet, the sensing device detects the vehicle to

reach

the

signal,

the

master

computer

through

the

rapid

capture

device

to

capture images and panoramic images under the front, then the front of image

processing, automatic license plate number to identify the character and color,

record the

vehicle through

the time, speed,

vehicle

length, the front

features

panoramic images and

vehicle images, all possible information

uploaded to

the

center,

entry

database

for

queries.

Mount

weather

station

for

each

real- time

monitoring

of

a

motor

vehicle

road

in

the

past,

and

records

of

suspicious vehicles and illegal vehicles real-time transmission to the relevant

management site.

capture part of the image acquisition

Capture part of the image acquisition system for monitoring and control by

industrial camera, professional camera lenses, professional digital image

Standard installation of camera signal as shown.

Then the image in the collection plate accounts for about 1 / 8 width of each

lane close-up camera field of view is about 3500 mm, for this application, we

specialize in the

recognition algorithm

has been improved on, so other than

characters, letters and numbers on the license plate recognition rate as high,

but because of the width of the plate in the image is too small, license plate too

few

pixels,

so

that

character

recognition

accuracy

will

drop,

do

not

ask

for

recognition of Chinese characters occasions in order to

reduce project cost.

Drive

the

camera

field

of

view

generally

coincides

roughly

the

width

of

a

license.

Enhanced

configuration

of

the

installation

of

the

camera

signal

as

shown.

Then

the images in the collection plate accounts for about 1 / 5 of the

image width of each lane close-up camera field of view is about 2,200 mm, this

configuration can make

the

license plate recognition in

the best effect, each

field of

view close-up camera also coincides approximately to the

width of a

license.

Ultra

low-light

color

camera

camera

scanning

system

for

the

PAL

standard, 1 / 3 inch area array CCD, Horizontal Resolution 520

video cable,

electronic shutter 1 / 50 - 1 / 10000. With 5-50mm zoom lens. Double shield

with

an

outdoor

all-weather

protective

cover,

in

line

with

IP55

degree

of

protection, with automatic thermostat and automatic ventilation, to ensure that

the camera work in an outdoor environment. In order to effectively address the

headlight glare at

night and daytime backlighting problems, we specialize in

improving

the

camera's

exposure

mode,

the

camera

exposure

makes

the

precise control of software, the image clearer, higher recognition rate. Part with

the aid of light, so that the recognition rate of the day and night are more than

98%.

Auxiliary light automatic control section

By

the

metal

halide

lamp,

flash

or

light-control

switches

and

other

components, mainly for low light and night when the smart fill light. Each Drive

to install a 150W or 175W Metal Halide about industrial lighting, mainly around

the scene to illuminate the entrance to reduce the impact of

the driver flash,

accurate shooting night, features panoramic views of the vehicle.

Each Drive to install a close-up lights, the light intensity is not enough, you

can add.

part of the host computer

Master control is a core part of the whole system. The host computer from

the

industrial

control

computer,

professional

image

acquisition

card,

digital

signal

input

/

output

card

(external

trigger),

Intelligent

Vehicle

mount

monitoring and recording system software.

In order to ensure the stability of the work unattended for a long time, we use

industrial control computer as a host computer, the kernel uses Intel 845 series

or more series of motherboard chipsets, CPU P4 2.0G or above, more than

256M

memory,

hard

disk

80G

above

system

is

based

on

Windows2000

operating system, and industrial machinery WATCHDOG function, once the

industrial computer running disorder, the system automatically restart.

System uses high-performance digital image capture card as the system

image

acquisition

equipment,

standard

plug

2

of

a

master

control

image

acquisition

card,

while

the

image

on

the

monitor

2-way

video

collection,

including

two

close-lane;

enhanced

configuration

of

a

Insert

four

main

computer image acquisition card, can simultaneously monitor 4 video capture,

including

two

close-lane,

all

the

way

to

assist

middle

and

one

close-up

panoramic views.

Software

can

identify

the

ten

Arabic

numerals

0

to

9,

twenty-six

upper

case letters A ~ Z and the associated license plate with Chinese characters:

Beijing,

Tianjin,

Shanxi,

Hebei,

Inner

Mongolia

and

Liaoning,

Jilin,

black,

Shanghai, Jiangsu, Zhejiang, Anhui, Fujian, Jiangxi, Shandong, Henan, Hubei,

Hunan, Guangdong, Guangxi, Hainan, Sichuan, Guizhou, and cloud, Tibetan,

Shaanxi,

Gansu,

Qinghai,

Ningxia,

new,

Chongqing,

Taiwan,

Hong

Kong,

Macao, A, B, C, D, E, F, G, Xin, Wang, Kuei, son, b, c, d, e, f, afternoon, no,

shen,

Xu,

Hai,

so,

lead,

learn,

test,

environmental,

consumer,

side,

police,

general, forest, gold, electricity; License plate colors: blue, white, black, yellow

and so on.

Host

computer

also

includes

communications

software

and

remote

maintenance

software

system

can

be

saved

on

the

hard

drive

of

any

data

uploaded to the needs of local and remote maintenance. Block diagram of the

operation of main computer as follows:

Master the operation of the computer interface as shown below:

license plate recognition system

power supply section

System

uses

220V

AC

power

supply,

power

supply

all

the

equipment

necessary to go through the security device (regulator, overload, leakage), to

ensure the safety of electricity and equipment. Various types of equipment can