CN207115750U - A kind of radar traffic event automatic detection system - Google Patents
A kind of radar traffic event automatic detection system Download PDFInfo
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- CN207115750U CN207115750U CN201720074803.0U CN201720074803U CN207115750U CN 207115750 U CN207115750 U CN 207115750U CN 201720074803 U CN201720074803 U CN 201720074803U CN 207115750 U CN207115750 U CN 207115750U
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Abstract
The utility model discloses a kind of radar traffic event automatic detection system, detection sensor module is passed including radar, video assisted detection system and intelligent transportation processing platform, described radar passes detection sensor module includes radar sensor again, radar traffic analyzer, described radar sensor is connected with radar traffic analyzer by RS485 interfaces, the radar traffic analyzer sends data to intelligent transportation processing platform through Ethernet, described intelligent transportation processing platform is also connected with video assisted detection system, video assisted detection system includes high-definition camera auxiliary and finds target, described radar sensor detects that vehicle abnormality stops, drive in the wrong direction, when hypervelocity, radar traffic analyzer alarm module starts alarm, and anomalous event is determined in the range of several meters.By radar traffic event automatic detection system provided by the utility model, the fast reaction to accident can be exported, so as to reduce second accident odds.
Description
Technical field
A kind of radar traffic event automatic detection system is the utility model is related to, belongs to intelligent transportation field.
Background technology
Several transport information detection techniques commonly used both at home and abroad at present:Loop coil, microwave, infrared video, numeral regard
Frequently, machine vision, ultrasound examination etc..Wherein the detection technique based on loop coil at present urban road occupation rate of market compared with
Height, Technical comparing are ripe.But video detection technology is easily influenceed by external environment, such as dense fog, heavy rain, Qiang Guang, mist
Haze, sand and dust, strong wind, insect covering camera, night are without illumination etc. factor.Therefore traffic system, which is badly in need of one kind, to examine round the clock
Survey, be disturbed that small, detection is accurate, maintenance is small, easy for installation, intelligent operation, the detection technique for having good human-computer interaction interface.
Radar event detection technology can exactly meet these technical requirements, and new detection technique hand is provided for traffic incidents detection
Section.
Utility model content
To solve technical problem existing for prior art, the utility model provides one kind and automatically detected up to traffic events
System.
A kind of radar traffic event automatic detection system of the utility model, including radar pass detection sensor module, regarded
Frequency assisted detection system and intelligent transportation processing platform, described radar pass detection sensor module again including radar sensor,
Radar traffic analyzer, described radar sensor are connected with radar traffic analyzer by RS485 interfaces, the radar traffic
Analyzer sends data to intelligent transportation processing platform through Ethernet, and it is auxiliary that described intelligent transportation processing platform is also connected with video
Detecting system is helped, video assisted detection system includes high-definition camera auxiliary and finds target, and described radar sensor detects
Vehicle abnormality parking, retrograde, vehicle super-high is fast or runs at a low speed, thing is shed on road surface and pedestrian, radar traffic analyzer alarm mould
Block starts alarm, and anomalous event is determined in the range of several meters into described radar traffic analyzer uses dsp chip
TMS320VC5402 works to complete signal transacting, by central processor CPU, internal bus control, special function register, number
According to memory RAM, program memory ROM, I/O Interface Expandings function, serial port, host communication interface HPI, timer, interruption
10 parts of system form.
The radar sensor includes microwave radio module, ifd module, baseband module, digital signal processing module, number
According to transport module, the ranging of the radar sensor is radius 25cm to 500 meters；The investigative range 1000 of each radar sensor
Rice, support POE.
There is described radar traffic analyzer 8G to be locally stored, and the compatible a variety of data protocols of DSP embedded designs, support
Multi-target data processing, support data buffer storage function.
Effective pursuit path that radar traffic analyzer identifies can pass to alert program；If a system has been run counter in track
Row rule, alarm signal will generate；And be used to judging whether violation be in running background can be trace information
Access the data analysis program of database.
The data analysis program can include and collect various parameters, such as speed, direction of displacement and classification, for example, can be by vapour
Car travels longer than such a events of 5s less than 15km/h speed and is defined as triggering the event alarmed.If rule is broken in track,
Radar traffic analyzer can be taken corresponding action, generation alarm by rule, and warning message is transferred to by radar traffic analyzer
Intelligent transportation processing platform, intelligent transportation processing platform calls camera supervised object, for managing the software module of video camera
It is called video analysis control module.Come display alarm by way of ejecting event on screen when alarming and generating.All
Track and alarm can be with revenue-center databases.
The utility model has the advantages that：Radar be disturbed it is small, detection it is accurate, convenient for installation and maintenance the characteristics of combine video,
The equipment such as laser, advices plate form comprehensive detection delivery system, while can use a variety of intelligent analysis process to system front end
The data collected carry out data analysis.What the target detection that is related in radar event detection, target following obtained is bottom
Layer information, and deeper understanding and identification are carried out to bottom-up information, it can more effectively improve event detection rate.
Brief description of the drawings
Fig. 1 is a kind of radar traffic event automatic detection system structural representation of the utility model；
Fig. 2 is a kind of radar traffic event automatic detection system connection diagram of the utility model；
In Fig. 2：1. radar passes detection sensor module；2. radar traffic analyzer；3. intelligent transportation processing platform；
Fig. 3 is radar traffic analyzer structural representation provided by the utility model；
Fig. 4 is radar sensor structural representation provided by the utility model.
Embodiment
It is further to the utility model below in conjunction with the accompanying drawings in order to be more clearly understood that the technical solution of the utility model
Explanation.
As shown in Figure 1, 2, a kind of radar traffic event automatic detection system, including radar biography detection sensor module,
Video assisted detection system and intelligent transportation processing platform, described radar passes detection sensor module includes radar sensing again
Device, radar traffic analyzer, described radar sensor are connected with radar traffic analyzer by RS485 interfaces, the radar
Traffic analysis sends data to intelligent transportation processing platform through Ethernet, and described intelligent transportation processing platform is also connected with regarding
Frequency assisted detection system, video assisted detection system include high-definition camera auxiliary and find target, the inspection of described radar sensor
Measure vehicle abnormality parking, retrograde, vehicle super-high is fast or runs at a low speed, thing is shed on road surface and pedestrian, radar traffic analyzer report
Alert module starts alarm, and anomalous event is determined in the range of several meters into radar traffic analyzer as described in Figure 3 uses DSP
Chip TMS320VC5402 works to complete signal transacting, is deposited by central processor CPU, internal bus control, specific function
Device, data storage RAM, program memory ROM, I/O Interface Expandings function, serial port, host communication interface HPI, timer,
10 parts of interruption system form.There is described radar traffic analyzer 8G to be locally stored, and DSP embedded design compatibilities are a variety of
Data protocol, multi-target data processing is supported, support data buffer storage function.
Realize that fft algorithm key step is as follows with TMS320VC5402 assembler：
(1) bit reversal of input data is realized.The bit reversal of input data is actually to carry out input data
Bit code is inverted, so that the output sequence after whole computing is a natural sequence.When carrying out bit code inversion with assembly instruction,
Program execution speed can be greatly improved using bit code inversion addressing and makes memory-aided efficiency.
(2) N point plural numbers FFT is realized.When carrying out FFT computings, because TMS320VC5402 is a fixed DSP, therefore
Consider spilling and Scaling Problem.
(3) calculating of power spectrum.Because the system is mainly to signal frequency discrimination, the specific power of signal is not required, is only needed
Seek the maximum of data after FFT, it is not necessary to which quadratic sum extracts square root, and the result of power spectrum is not influenceed, so in reality
Dsp program in eliminate extracting operation.
(4) FFT result is exported.
The measurement in traffic to car speed is realized using TMS320VC5402DSP herein, and can be stable, reliable quick
Ground calculates speed.
The as shown in Figure 4 radar sensor includes microwave radio module, ifd module, baseband module, at data signal
Module is managed, data transmission module, the ranging of the radar sensor is radius 25cm to 500 meters.The spy of each radar sensor
1000 meters of scope is surveyed, supports POE.The English name " Radar " of radar is that the English of radio detection and ranging is first
Letter abbreviations.Brooker boss claims simplest radar to be made up of emitter and receiver, and transmitter antenna is specific towards one
Direction transmitting radio signal, " echo " of the object reflection that receiver is responsible for running into detectable signal traveling way.Emitter
Electronic circuit with a specific hunting of frequency, frequency is usually above radio station or the frequency of television broadcasting.This signal is borrowed
Help antenna to be sent in the form of short electro magnetic energy pulses, be referred to as " pulse ", antenna produces an arrow beam, just as torch one
Sample." direction based on antenna, radar can determine an object-commonly referred to as ' target '-direction." with target it
Between distance according to transmitting pulse and receive echo between time determine.Because radar signal is moved with the light velocity always, therefore
Distance can accurately be calculated.Radar event detection system is to utilize millimeter wavelength radar, automatic to monitor wall scroll or a plurality of road
The monitoring device of upper abnormal object.
Effective pursuit path that radar traffic analyzer identifies can pass to alert program；If a system has been run counter in track
Row rule, alarm signal will generate；And be used to judging whether violation be in running background can be trace information
Access the data analysis program of database.The data analysis program can include collect various parameters, as speed, direction of displacement and
Classification.It is defined as triggering the event alarmed for example, automobile can be travelled longer than into such a events of 5s less than 15km/h speed.Such as
Rule is broken in fruit track, and radar traffic analyzer can be taken corresponding action by rule, and generation alarm, radar traffic analyzer will
Warning message is transferred to intelligent transportation processing platform, and intelligent transportation processing platform calls camera supervised object, is taken the photograph for managing
The software module of camera is called video analysis control module.Shown by way of ejecting event on screen when alarming and generating
Show alarm.All tracks and alarm can be with revenue-center databases.
In terms of accuracy rate and reliability, radar event detection system pinpoint accuracy and extremely low false alarm rate are to ensure that alarm thing
The real major criterion of part.Affair alarm rate should control to be less than once at every kilometer per 24h, and radar event detection device is to vehicle
The reliability of pedestrian's dependent event verification and measurement ratio, up to more than 95%, the radar in roadside or tunnel can believe equipment state
Breath feeds back to software administration interface, it is ensured that equipment state is monitored from beginning to end.
Described above is only better embodiment of the present utility model, therefore all according to described in the utility model patent application range
The equivalent change or modification done of construction, feature and principle, be included in the utility model patent application range.
Claims (3)
1. a kind of radar traffic event automatic detection system, it is characterised in that pass detection sensor module, video including radar
Assisted detection system and intelligent transportation processing platform, described radar passes detection sensor module includes radar sensor, thunder again
Up to traffic analysis, described radar sensor is connected with radar traffic analyzer by RS485 interfaces, the radar traffic point
Analyzer sends data to intelligent transportation processing platform through Ethernet, and described intelligent transportation processing platform is also connected with video auxiliary
Detecting system, video assisted detection system include high-definition camera auxiliary and find target, and described radar sensor detects car
Exception parking, drive in the wrong direction, vehicle super-high speed or run at a low speed, thing is shed on road surface and pedestrian, radar traffic analyzer alarm module
Start alarm, and anomalous event is determined that in the range of several meters described radar traffic analyzer uses dsp chip
TMS320VC5402 works to complete signal transacting, by central processor CPU, internal bus control, special function register, number
According to memory RAM, program memory ROM, I/O Interface Expandings function, serial port, host communication interface HPI, timer, interruption
10 parts of system form.
2. a kind of radar traffic event automatic detection system according to claim 1, it is characterised in that the radar passes
Sensor includes microwave radio module, ifd module, baseband module, digital signal processing module, data transmission module, the radar
The ranging of sensor is radius 25cm to 500 meters；1000 meters of the investigative range of each radar sensor, supports POE.
A kind of 3. radar traffic event automatic detection system according to claim 1, it is characterised in that described radar
There is traffic analysis 8G to be locally stored, and the compatible a variety of data protocols of DSP embedded designs, support multi-target data processing, branch
Hold data buffer storage function.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720074803.0U CN207115750U (en) | 2017-01-21 | 2017-01-21 | A kind of radar traffic event automatic detection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720074803.0U CN207115750U (en) | 2017-01-21 | 2017-01-21 | A kind of radar traffic event automatic detection system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108648456A (en) * | 2018-06-22 | 2018-10-12 | 广州华信智能交通科技有限公司 | A kind of traffic events monitoring device and method based on video and radar |
| CN109901170A (en) * | 2019-03-21 | 2019-06-18 | 西安交通大学 | A kind of intelligent transportation detection system and method based on radar block array |
| CN112083381A (en) * | 2020-09-15 | 2020-12-15 | 苏州映赛智能科技有限公司 | Fusion perception hardware system |
| CN112837529A (en) * | 2019-11-25 | 2021-05-25 | 斑马智行网络(香港)有限公司 | Data processing method and system, acquisition device, processor and storage medium |
-
2017
- 2017-01-21 CN CN201720074803.0U patent/CN207115750U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108648456A (en) * | 2018-06-22 | 2018-10-12 | 广州华信智能交通科技有限公司 | A kind of traffic events monitoring device and method based on video and radar |
| CN109901170A (en) * | 2019-03-21 | 2019-06-18 | 西安交通大学 | A kind of intelligent transportation detection system and method based on radar block array |
| CN112837529A (en) * | 2019-11-25 | 2021-05-25 | 斑马智行网络(香港)有限公司 | Data processing method and system, acquisition device, processor and storage medium |
| CN112837529B (en) * | 2019-11-25 | 2022-12-02 | 斑马智行网络(香港)有限公司 | Data processing method and system, acquisition device, processor and storage medium |
| CN112083381A (en) * | 2020-09-15 | 2020-12-15 | 苏州映赛智能科技有限公司 | Fusion perception hardware system |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |