CN107341957A - A kind of comprehensive acquisition of road traffic information system - Google Patents
A kind of comprehensive acquisition of road traffic information system Download PDFInfo
- Publication number
- CN107341957A CN107341957A CN201710708075.9A CN201710708075A CN107341957A CN 107341957 A CN107341957 A CN 107341957A CN 201710708075 A CN201710708075 A CN 201710708075A CN 107341957 A CN107341957 A CN 107341957A
- Authority
- CN
- China
- Prior art keywords
- data
- video
- traffic
- noise
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 claims abstract description 58
- 238000012545 processing Methods 0.000 claims abstract description 48
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 238000001228 spectrum Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 2
- 238000004886 process control Methods 0.000 claims 1
- 241001269238 Data Species 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 230000004807 localization Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
Abstract
The present invention discloses a kind of comprehensive acquisition of road traffic information system, including noise monitoring unit, video traffic stream detection unit, data processing and memory cell and background management unit；Noise monitoring unit is used for recording traffic noise data, including weighted acoustic pressure DBMS, statistics acoustic pressure DBMS and frequency spectrum data etc..Video traffic stream detection unit is used to gather the traffic flow datas such as vehicle flowrate, speed, vehicle, time headway in real time.Data processing and memory cell are used to storing the traffic noise data that noise monitoring gathered and video traffic stream monitors gathered traffic flow data.Background management unit is used to interact formula operation with data center and monitoring terminal, realizes the instruction localization of monitoring terminal and data center.The present invention has the characteristics that simple in construction, automaticity is high, round-the-clock monitoring, can real-time synchronization collection traffic noise data and traffic flow data, provide substantial amounts of basic data for road traffic noise source strength discharge model.
Description
Technical field
The present invention relates to acquisition of road traffic information field, more particularly, to a kind of while traffic fluxion can be obtained
According to the synthesis acquisition of road traffic information system with traffic noise data.
Background technology
With economic fast-developing and urbanization process the increasingly propulsion with science and technology, the car owning amount of resident is also in
Existing explosive increase.And the private car recoverable amount of rapid growth also brings prominent city road traffic noise pollution problem.
The regional environmental noise equivalent sound level average value of national 113 environmentally friendly key cities in 2014 is 54.4dB (A), and road traffic
Noise equivalent sound level average value is 67.6dB (A), (A) higher 13.2dB than regional environmental noise equivalent sound level average value.It can be seen that road
The noise pollution of road both sides is much more serious than the noise pollution in other regions.Therefore, traffic noise be urban environment noise most
Important sources, the preventing and treating to traffic noise are to improve the mission critical of urban environment noise.
Traffic noise monitoring is the important means for obtaining city road traffic noise pollution situation, and draws city noise
The primary premise of map.Traffic noise monitoring mainly includes the data of two aspects, when traffic noise data, second, traffic flow
Data.Traffic noise data include sound pressure level data, frequency spectrum data and recording data.Sound pressure level data include weighted acoustic pressure series
Include chronoscope power acoustic pressure DBMS and equivalent weighted acoustic pressure DBMS according to statistics acoustic pressure DBMS, weighted sound pressure level data.
Frequency spectrum acoustic pressure DBMS is advisable with third-octave.Recording data is then adopted using sample frequency as 48kb/s, form for the original of .wav
Sample data are advisable.Traffic flow data includes statistics traffic data and single vehicle data.It is interior for a period of time to count the volume of traffic
Traffic flow data, including the macro-traffic stream information such as the volume of traffic, average speed, vehicle ratio, track ratio, vehicle density.
Single vehicle data includes the vehicle classification of each car, travel speed, traveling lane, microcosmic with the time headway of front truck etc.
Telecommunication flow information.Information gathering for road traffic state and handed over for the monitoring of road traffic noise, it is necessary to gather statistics
Flux data and statistics acoustic pressure DBMS.For road traffic noise source strength discharge model basic data acquisition for, it is necessary to
Gather single vehicle data and instantaneous weighted sound pressure level data.
But existing traffic noise monitoring, largely using manually measuring, measurement efficiency is low, the data volume of acquisition
Less, it is necessary to a large amount of manpower and materials, and round-the-clock traffic noise monitoring can not be realized.For this situation, there are many noises
Instrument manufacturer develops outdoor noise monitoring station.But except noise data, traffic flow data is also must not in traffic noise monitoring
The data that can lack.It would therefore be desirable to have the method for a kind of monitoring of combination road traffic noise and road traffic flow detection to meet at present
The needs of traffic noise on urban roads monitoring.At the same time, the combination of traffic noise monitoring and Traffic flow detecting technology can be with
Model being discharged for traffic noise source strength substantial amounts of basic data being provided, the noise emission model to fit closer to reality is laid
Solid foundation.
The content of the invention
Present invention solves the technical problem that be invention it is a kind of it is simple in construction, automaticity is high, the synthesis of round-the-clock collection
Acquisition of road traffic information system, can real-time synchronization collection traffic noise data and traffic flow data.
In order to solve the above problems, the technical solution adopted by the present invention is：
A kind of comprehensive acquisition of road traffic information system, including noise monitoring unit, video traffic stream detection unit, data
Processing and memory cell and background management unit；Noise monitoring unit and video traffic stream detection unit respectively with data processing
Connected with memory cell, data processing and memory cell are connected with background management unit；
Wherein noise monitoring unit includes outdoor noise data acquisition module, noise data processing module and noise data biography
Defeated module；The noise data acquisition module, sound pressure level and frequency spectrum data are gathered in real time, and sound pressure level signal is converted into telecommunications
Number；The noise data processing module, it is that the Electric signal processing for being converted noise data acquisition module is weighted acoustic pressure series
According to, statistics the traffic noise data such as acoustic pressure DBMS and frequency spectrum data；The noise data transmission unit, it is by noise data
The data obtained handled by reason module, are transmitted to data center；
Video traffic stream detection unit includes video monitoring module, video data processing module and video data transmission mould
Block；The video monitoring module, it is real-time collection traffic video data；The video data handles transport module, is by video
The traffic video data that monitoring module is gathered obtain vehicle flowrate, speed, vehicle classification and time headway by processing；It is described
Video data transfer module, obtained by the traffic video data that video monitoring module is gathered and video data processing module
Telecommunication flow information is transmitted to data center；
Data processing and memory cell, establish the number of traffic noise acoustic pressure DBMS, recording data and traffic video data
According to storehouse, data that centrally stored noise monitoring unit and video traffic stream detection unit is transmitted, while be background management unit
Data access interface is provided；
Background management unit, monitors the state of noise monitoring unit and video traffic stream detection unit in real time, and it is entered
Row remote control, while the traffic noise data and traffic video data that energy real-time query data center is stored.
In noise monitoring unit and video traffic stream detection unit described above used equipment have it is certain it is dust-proof,
Windproof, rain-proof ability, it is adapted to long-term condition out of doors to use, it is preferred that water proof and dust proof grade is more than or equal to IP55.
Preferably, noise monitoring unit and the time shaft of video traffic stream detection unit are synchronous, realize road traffic state
Comprehensive analysis.
Preferably, noise monitoring unit gathers recording data in real time, and its recording file is .wav forms, and sample frequency is
48kb/s。
Preferably, noise data processing module can handle to obtain abundant acoustic pressure DBMS, including tri- total weighted of A, C, Z
The instantaneous sound pressure DBMS and equivalent sound pressure DBMS of mode, including L5、L10、L50、L90、L95、Lmax、LminDeng statistics sound pressure level
Data.The noise data processing module handles to obtain 10Hz~20kHz third-octave frequency spectrum data.
Preferably, the video monitoring module in the video traffic stream detection unit is video frequency pick-up head, the video counts
It is industrial computer according to processing module, the transmission means of the video data transfer module is WebService, host-host protocol TCP/
IP.The transmission means of noise data transmission unit is WebService, host-host protocol TCP/IP.
Preferably, the video data processing module is to take frame by the second to traffic video, passes through video encoder server technology
The information of vehicles in video image is extracted, by setting virtual coil or light stream field type to examine road interface vehicular traffic
Survey, obtain the telecommunication flow information of vehicle flowrate, speed, vehicle classification and time headway.
Data processing and memory cell, can store simultaneously recording data and traffic noise data that noise monitoring transmitted and
Video traffic stream detects transmitted video data, and is synchronized them by identical time shaft, and provides data for back-stage management
The interface for accessing and operating.
The data that the background management unit can be stored with real time access, obtain specified time traffic noise data and
Traffic video and recording data.Can be with remote control noise monitoring device, between realizing that switching on and shutting down, setting microphone unit sample
Every, set the function such as noise and recording data uplink time.Switch can be realized with remote control video traffic flow assay device
Machine, the functions such as video data uplink time are set.
Compared with prior art, beneficial effect is：The present invention is simple in construction, automaticity is high, data acquisition efficiency is high,
Round-the-clock it can monitor；The present invention realizes road traffic video data, traffic flow data, traffic noise data and traffic recording number
According to the synchronous acquisition of four kinds of highway traffic datas, four kinds of be combineding with each other for highway traffic data have many benefits.For example, road is handed over
The monitoring being combined with beneficial to road traffic state of logical video data and traffic recording data；Road traffic flow data is made an uproar with traffic
The combination of sound data can realize the automatic monitoring of road traffic noise, while can also be that road traffic noise source strength discharges
Model provides a large amount of basic datas.
Brief description of the drawings
Fig. 1 is the system structure diagram of the embodiment of the present invention.
Fig. 2 is the automotive check algorithm flow chart based on optical flow method.
Embodiment
In order to more preferably illustrate present disclosure, illustrate especially exemplified by specific embodiment.It should be appreciated that specific reality described herein
Example is applied only to explain the present invention, is not intended to limit the present invention.
As shown in figure 1, the system structure diagram of preferred embodiments of the present invention, a kind of comprehensive acquisition of road traffic information
System, including for recording traffic noise data and the noise monitoring unit 100 of recording, for gather in real time vehicle flowrate, speed,
The video traffic stream detection unit 200 of the traffic flow datas such as vehicle, time headway, adopted for the synchronous noise monitoring system that stores
The data processing for the traffic flow data that the traffic noise data and video traffic stream monitoring system of collection are gathered and memory cell 300
And the traffic noise data for being stored in real time access data center and traffic flow data, and remote control noise monitoring
System and video traffic stream monitoring system background management unit 400；Noise monitoring unit 100 and video traffic stream detection unit
200 are connected with data processing and memory cell 300 respectively, and data processing and memory cell 300 connect with background management unit 400
Connect；
Noise monitoring unit 100 gathers ambient sound data in real time by microphone module 101, and its principle is microphone
Vibrating diaphragm is driven moving coil to produce induced-current in magnetic field internal vibration by acoustic pressure, is thus converted into sound pressure signal
Voltage signal.The voltage signal is transmitted into noise data processing module 102, A weighteds built in noise data processing module 102 and
The corrected parameter of C weighteds, the sound pressure level under different frequency in frequency response curve is modified by weighted parameter, electric signal is repaiied
Just be with human ear sense of hearing similar in sound pressure level, obtain weighted acoustic pressure DBMS and the frequency spectrum data under different weighteds.Meanwhile noise
Data processing module 102 can carry out statistical analysis to the weighted acoustic pressure DBMS in a period of time, draw in current record time
Acoustic pressure DBMS in by small to big 5%, 10%, 50%, 90%, 95% and the sound of maximum and minimum value
Arbitrarily downgrade data, be designated as L respectively5、L10、L50、L90、L95、Lmax、Lmin.The data obtained handled by noise data processing module 102
Transmitted by noise data transmission module 103 to data processing and memory cell 300.
For recording data, noise data processing module 102 will be using 10min as one section of generation, one recording file, and is
The time that each recording file was numbered+started recording with noise monitoring system is named.In the present embodiment, the life of recording file
Entitled " XXXX_YYYYMMDD_HHMMSS ".Wherein XXXX represents the numbering of video traffic stream detecting system, and YYYY represents video
Start the time recorded,
MM represents that video starts the month recorded, and DD represents that video starts the date recorded, and HH represents that video starts to record
Hour, MM represent video start record minute, SS represent video start record number of seconds.
Video traffic stream detection unit 200 gathers the video data on road, video monitoring by video monitoring module 201
For the video that module 201 is gathered using 10min as one section, each section is a video file.
Video data processing module 202 will be started for each section of video with numbering+video of video traffic stream detecting system
The time name of recording.In the present embodiment, video file is named as " XXXX_YYYYMMDD_HHMMSS ".Wherein XXXX tables
Show the numbering of video traffic stream detecting system, the implication that remaining alphabet shows is identical with recording file.
Video data processing module 202 will be carried out taking frame by the second by the video to being gathered, and video data is converted into figure
As data.Road interface vehicular traffic is detected by the video traffic stream detection technique such as virtual coil, optical flow method, obtained
The telecommunication flow informations such as vehicle flowrate, speed, vehicle classification, time headway.Fig. 2 is that video data processing module 202 utilizes optical flow method
The algorithm flow chart of vehicle flowrate, speed and vehicle detection is carried out, optical flow method is a kind of common based on entering to discrete single image
The detection method of the video frequency vehicle of row feature extraction.Video data processing module 202 will handle obtained traffic flow data with regarding
Frequency evidence is transmitted to data processing and memory cell 300 by video data transfer module 203.
What data processing and memory cell 300 received that each noise monitoring system and video traffic stream detecting system passes back makes an uproar
Sound data, recording data, vehicle flowrate data and video data, according to different date and time sections, data above is stored in
In different pieces of information table in database.Table 1 show weighted sound pressure level and frequency spectrum data table, each second one weighted acoustic pressure series
According to and frequency spectrum data.Table 2 show statistics sound pressure level meter, and statistics sound pressure level generates one per 10min.Table 3 show single machine
Motor-car tables of data, record vehicle, speed, place track and the time headway with front truck of each car.Table 4 show statistics and handed over
Through-flow tables of data, record large, medium and small vehicle number and total vehicle flowrate, average speed and average headway in 10min.
The weighted sound pressure level of table 1 and frequency spectrum data table
Table 2 counts sound pressure level meter
3 single vehicle data tables of table
Table 4 counts traffic flow data table
Background management unit 400 sends request of data to data processing and memory cell 300, can real time inspection data processing
With Various types of data table, recording data and the video data in memory cell 300.Background management unit 400 can by date and when
Between inquire about all types of data, the type data of institute having time can also be inquired about by data type.Back-stage management list simultaneously
Member 400 can be sent out by data processing and memory cell 300 to noise monitoring unit 100 and video traffic stream detection unit 200
Send remote control command.Opening and closing, sampling interval, the time of integration including remotely located noise monitoring unit 100 and on
Pass interval and whether upload recording data etc.；Set in video traffic stream detection unit 200 unlatching of video monitoring member 201 and
Close, the period of uploaded videos data is set and transmitted time of data etc..
The embodiment of invention described above, is not intended to limit the scope of the present invention..It is any in this hair
Made modifications, equivalent substitutions and improvements etc. within bright spiritual principles, it should be included in the claim protection of the present invention
Within the scope of.
Claims (6)
1. a kind of comprehensive acquisition of road traffic information system, it is characterised in that detected including noise monitoring unit, video traffic stream
Unit, data processing and memory cell and background management unit；Noise monitoring unit and video traffic stream detection unit difference
It is connected with data processing and memory cell, data processing and memory cell are connected with background management unit；
Wherein noise monitoring unit includes outdoor noise data acquisition module, noise data processing module and noise data transmission mould
Block；The noise data acquisition module, sound pressure level and frequency spectrum data are gathered in real time, and sound pressure level signal is converted into electric signal；
The noise data processing module is the Electric signal processing that is converted noise data acquisition module for weighted acoustic pressure DBMS,
Count the traffic noise data such as acoustic pressure DBMS and frequency spectrum data；The noise data transmission unit, is to handle noise data
The data obtained handled by module, transmit to data center；
Video traffic stream detection unit includes video monitoring module, video data processing module and video data transfer module；Institute
Video monitoring module is stated, is real-time collection traffic video data；The video data handles transport module, is by video monitoring mould
The traffic video data that block is gathered obtain vehicle flowrate, speed, vehicle classification and time headway by processing；The video counts
According to transport module, the traffic flow obtained by the traffic video data that video monitoring module is gathered and video data processing module
Information transfer is to data center；
Data processing and memory cell, the database of traffic noise acoustic pressure DBMS, recording data and traffic video data is established,
The data that centrally stored noise monitoring unit and video traffic stream detection unit is transmitted, while provide number for background management unit
According to access interface；
Background management unit, monitors the state of noise monitoring unit and video traffic stream detection unit in real time, and it is carried out far
Process control, while the traffic noise data and traffic video data that energy real-time query data center is stored.
2. comprehensive acquisition of road traffic information system according to claim 1, it is characterised in that noise monitoring unit and regard
The time shaft of frequency Traffic flow detecting unit is synchronous.
3. comprehensive acquisition of road traffic information system according to claim 1, it is characterised in that noise monitoring unit is real-time
Recording data is gathered, its recording file is .wav forms, sample frequency 48kb/s.
4. comprehensive acquisition of road traffic information system according to claim 1, it is characterised in that the noise data processing
Resume module obtains 10Hz~20kHz third-octave frequency spectrum data.
5. comprehensive acquisition of road traffic information system according to claim 1, it is characterised in that the video traffic stream inspection
The video monitoring module surveyed in unit is video frequency pick-up head, and the video data processing module is industrial computer, the video data
The transmission means of transport module is WebService, host-host protocol TCP/IP.
6. comprehensive acquisition of road traffic information system according to claim 1, it is characterised in that the video data processing
Module is to take frame by the second to traffic video, the information of vehicles in video image is extracted by video encoder server technology, by setting
Put virtual coil or light stream field type detects to road interface vehicular traffic, obtain vehicle flowrate, speed, vehicle classification and car
Head when away from telecommunication flow information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710708075.9A CN107341957A (en) | 2017-08-17 | 2017-08-17 | A kind of comprehensive acquisition of road traffic information system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710708075.9A CN107341957A (en) | 2017-08-17 | 2017-08-17 | A kind of comprehensive acquisition of road traffic information system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107341957A true CN107341957A (en) | 2017-11-10 |
Family
ID=60214510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710708075.9A Pending CN107341957A (en) | 2017-08-17 | 2017-08-17 | A kind of comprehensive acquisition of road traffic information system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107341957A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107993435A (en) * | 2017-11-16 | 2018-05-04 | 浙江浙大中控信息技术有限公司 | Intersection signal cycle and the method for estimation of cycle flow |
| CN108801449A (en) * | 2018-07-09 | 2018-11-13 | 滨州职业学院 | A kind of urban traffic noise inquiry system of wireless monitor |
| CN109405962A (en) * | 2018-11-21 | 2019-03-01 | 中山大学 | A kind of road traffic noise frequency spectrum calculation method |
| CN111815862A (en) * | 2019-04-11 | 2020-10-23 | 丰田自动车株式会社 | Information processing system and information processing method |
| CN113139495A (en) * | 2021-04-29 | 2021-07-20 | 姜冬阳 | Tunnel side-mounted video traffic flow detection method and system based on deep learning |
| CN113420588A (en) * | 2021-05-11 | 2021-09-21 | 东南大学 | Method, device and equipment for establishing visual road noise field and computer storage medium |
| CN114512000A (en) * | 2022-01-11 | 2022-05-17 | 海南省设计研究院有限公司 | Intelligent comprehensive rod with continuous traffic information detection function |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10198885A (en) * | 1997-01-09 | 1998-07-31 | Omron Corp | Traffic jam detector |
| US20040194549A1 (en) * | 2001-08-10 | 2004-10-07 | Rene Noel | Sound pollution surveillance system and method |
| CN101030327A (en) * | 2007-04-23 | 2007-09-05 | 凌子龙 | Violation whistling electronic evidence-collecting method for vehicle |
| CN101539602A (en) * | 2009-04-23 | 2009-09-23 | 浙江理工大学 | Full-digital real-time noise measurement and analysis method and system thereof |
| CN102445267A (en) * | 2011-11-21 | 2012-05-09 | 嘉兴中科声学科技有限公司 | Test method for digitalized acoustics detection system |
| CN102542800A (en) * | 2011-12-21 | 2012-07-04 | 中山大学 | System for acquiring road traffic flow information and traffic noise data synchronously |
| CN102722983A (en) * | 2012-06-13 | 2012-10-10 | 浙江大学 | Audio and video based detection system and method for horn blowing of motor vehicle in violation of regulations |
| CN104332050A (en) * | 2014-10-27 | 2015-02-04 | 浙江省环境保护科学设计研究院 | Intelligent environmental noise and vibration monitoring device and method |
| CN106487929A (en) * | 2016-12-09 | 2017-03-08 | 庄耿华 | A kind of vehicle-mounted rule-breaking vehicle is blown a whistle automatic detection and evidence-obtaining system |
| CN106875678A (en) * | 2017-01-23 | 2017-06-20 | 上海良相智能化工程有限公司 | A kind of vehicle whistle law enforcement evidence-obtaining system |
-
2017
- 2017-08-17 CN CN201710708075.9A patent/CN107341957A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10198885A (en) * | 1997-01-09 | 1998-07-31 | Omron Corp | Traffic jam detector |
| US20040194549A1 (en) * | 2001-08-10 | 2004-10-07 | Rene Noel | Sound pollution surveillance system and method |
| CN101030327A (en) * | 2007-04-23 | 2007-09-05 | 凌子龙 | Violation whistling electronic evidence-collecting method for vehicle |
| CN101539602A (en) * | 2009-04-23 | 2009-09-23 | 浙江理工大学 | Full-digital real-time noise measurement and analysis method and system thereof |
| CN102445267A (en) * | 2011-11-21 | 2012-05-09 | 嘉兴中科声学科技有限公司 | Test method for digitalized acoustics detection system |
| CN102542800A (en) * | 2011-12-21 | 2012-07-04 | 中山大学 | System for acquiring road traffic flow information and traffic noise data synchronously |
| CN102722983A (en) * | 2012-06-13 | 2012-10-10 | 浙江大学 | Audio and video based detection system and method for horn blowing of motor vehicle in violation of regulations |
| CN104332050A (en) * | 2014-10-27 | 2015-02-04 | 浙江省环境保护科学设计研究院 | Intelligent environmental noise and vibration monitoring device and method |
| CN106487929A (en) * | 2016-12-09 | 2017-03-08 | 庄耿华 | A kind of vehicle-mounted rule-breaking vehicle is blown a whistle automatic detection and evidence-obtaining system |
| CN106875678A (en) * | 2017-01-23 | 2017-06-20 | 上海良相智能化工程有限公司 | A kind of vehicle whistle law enforcement evidence-obtaining system |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107993435A (en) * | 2017-11-16 | 2018-05-04 | 浙江浙大中控信息技术有限公司 | Intersection signal cycle and the method for estimation of cycle flow |
| CN107993435B (en) * | 2017-11-16 | 2019-10-29 | 浙江浙大中控信息技术有限公司 | The estimation method of intersection signal period and period flow |
| CN108801449A (en) * | 2018-07-09 | 2018-11-13 | 滨州职业学院 | A kind of urban traffic noise inquiry system of wireless monitor |
| CN109405962A (en) * | 2018-11-21 | 2019-03-01 | 中山大学 | A kind of road traffic noise frequency spectrum calculation method |
| CN111815862A (en) * | 2019-04-11 | 2020-10-23 | 丰田自动车株式会社 | Information processing system and information processing method |
| CN113139495A (en) * | 2021-04-29 | 2021-07-20 | 姜冬阳 | Tunnel side-mounted video traffic flow detection method and system based on deep learning |
| CN113420588A (en) * | 2021-05-11 | 2021-09-21 | 东南大学 | Method, device and equipment for establishing visual road noise field and computer storage medium |
| CN113420588B (en) * | 2021-05-11 | 2022-12-13 | 东南大学 | Method, device and equipment for establishing visual road noise field and computer storage medium |
| CN114512000A (en) * | 2022-01-11 | 2022-05-17 | 海南省设计研究院有限公司 | Intelligent comprehensive rod with continuous traffic information detection function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107341957A (en) | A kind of comprehensive acquisition of road traffic information system | |
| CN107194861B (en) | Road network operation comprehensive monitoring management platform and method based on 3DGIS + BIM | |
| CN103269355B (en) | Intelligent skynet application platform | |
| CN111564031A (en) | Gridding atmospheric pollution emergency mobile monitoring system | |
| CN102645271A (en) | Intelligent supervision and management system for environmental noise sources | |
| CN207123917U (en) | A kind of mineral resources night illegal mining monitoring system | |
| CN104680619A (en) | Two-way movement interconnection data acquisition system | |
| CN204286496U (en) | On-line monitoring instrument is polluted in a kind of building operation | |
| CN201247530Y (en) | Automatic detection system for vehicle rushing red light | |
| CN210426762U (en) | Automatic noise monitoring and data management system for high-speed railway | |
| CN106339973A (en) | Guard security system based on data platform and and guard security method thereof | |
| CN211015113U (en) | Intelligent type pipe control system for underground comprehensive pipe gallery | |
| CN205898623U (en) | Dotted line face raise dust stereoscopic monitoring system | |
| CN107870910A (en) | High ferro trackside equipment, which adds, multiplies inspection record method and its system | |
| CN113852794A (en) | Edge calculation sharing monitoring rod system based on urban brain | |
| CN106128109B (en) | A kind of different domain slag-soil truck based on Big Dipper space-time traffic signals is broken rules and regulations analytical equipment and method | |
| CN101620788A (en) | Mobile AV and image recognition intellectualized system | |
| CN204904573U (en) | Road traffic statistics of flow integrated monitoring system | |
| CN207369203U (en) | A kind of audio, video data monitoring system | |
| CN204291236U (en) | Motor vehicle abnormal behaviour monitoring device on a kind of through street | |
| CN105809608A (en) | GIS (geographic information system)-based mobile law enforcement system | |
| CN104574974A (en) | Traffic block port monitoring system for urban road | |
| TWM594778U (en) | Distributed hearing system for use with traffic signals | |
| CN205179252U (en) | Look screen and gather processing system based on thing networking | |
| CN109040181A (en) | A kind of new car networked terminals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171110 |