CN104200684B - A kind of major urban arterial highway filtering selective system based on wavelet transformation - Google Patents
A kind of major urban arterial highway filtering selective system based on wavelet transformation Download PDFInfo
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- CN104200684B CN104200684B CN201410470263.9A CN201410470263A CN104200684B CN 104200684 B CN104200684 B CN 104200684B CN 201410470263 A CN201410470263 A CN 201410470263A CN 104200684 B CN104200684 B CN 104200684B
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Abstract
The invention discloses a kind of major urban arterial highway filtering selective system based on wavelet transformation, it comprises traffic information acquisition system, security module management system and wavelet transform process center; Traffic information acquisition system is that road pavement traffic real-time information positions collection by GPS; Security module management system carries out security of system maintenance and backup and recovery to the information of road condition acquiring; Wavelet transform process center is that the road conditions transport information gathered by traffic information acquisition system is carried out processing and changes.The present invention be directed to the application demand of vehicle supervision department, can gather major urban arterial highway Real-Time Traffic Volume and analyze, carry out filtering with wavelet transformation and remove on major trunk roads that sporadic traffic is on the impact of main flow, the filtering realizing the major urban arterial highway main flow of invigorating large enterprises while relaxing control over small ones is passed through.
Description
Technical field
The present invention relates to a kind of major urban arterial highway filtering selective system, be specifically related to a kind of major urban arterial highway filtering selective system based on wavelet transformation.
Background technology
Wavelet transformation, very large advantage is had with traditional Fourier transform is similar, wherein maximum 2 are exactly, and it the multiplying be converted to differentiating in time domain in frequency field, just can be converted into algebraic equation to process for general Differential Equation with Constant Coefficients like this.Be exactly a bit that it can be converted to multiplying the convolution algorithm of function in addition, it can simplify the process to the linear system with translation invariance like this.But Fourier transform has its limitation, it is helpless for the ordinary differential equation of variable coefficient, also little for general linear system Fourier transform use, can not the feature of reaction signal in local time.In order to solve or partly address these problems, there has been proposed the thought of wavelet transformation, its inherits the lot of advantages of Fourier transform on the one hand, overcomes the weakness that Fourier transform lacks locality in addition to a certain extent.Its feature is exactly that its transforming function transformation function has window feature.
Based on the above, wavelet conversion technology can be applied to vehicle supervision department, realize selecting the filtering of major urban arterial highway road surface in conjunction with modern computer application technology means.
Summary of the invention
Technical matters to be solved by this invention is as driver violating the regulations provides a kind of major urban arterial highway filtering selective system based on wavelet transformation.
Technical matters to be solved by this invention realizes by the following technical solutions: a kind of major urban arterial highway filtering selective system based on wavelet transformation, and it comprises traffic information acquisition system, security module management system and wavelet transform process center; Described traffic information acquisition system, mainly road pavement traffic real-time information positions collection by GPS; Described security module management system carries out security of system maintenance and backup and recovery to the information of road condition acquiring; Described wavelet transform process center is that the road conditions transport information gathered by described traffic information acquisition system is carried out processing and changes; Described road traffic real-time information is sent to described wavelet transform process center by GSM, GPRS, CDMA and Internet various ways by described traffic information acquisition system.
The job step that described small echo exchanges processing enter is as follows:
A, collection transport information, obtain three-dimensional traffic information data body after pre-service;
B, Hilbert conversion is carried out to three-dimensional traffic information data body, reach three dimensional Phase cosine data volume;
C, three dimensional Phase cosine data volume is carried out piecemeal;
D, each three dimensional Phase cosine data volume piecemeal is carried out three-dimensional continuous wavelet transform;
E, obtain piecemeal discrete date body;
F, obtain transport information discrete date body.
Described wavelet transform process center is by road surface Signalized control road traffic.
The present invention be directed to the application demand of vehicle supervision department, a kind of major urban arterial highway filtering selective system based on wavelet transformation succeeded in developing in conjunction with modern computer application technology means, it can provide convenient, serve efficiently for vehicle supervision department.
The invention has the beneficial effects as follows: the present invention adopts high reliability equipment, realize unattended duty completely, can gather major urban arterial highway Real-Time Traffic Volume and analyze, carry out filtering with wavelet transformation and remove on major trunk roads that sporadic traffic is on the impact of main flow, the filtering realizing the major urban arterial highway main flow of invigorating large enterprises while relaxing control over small ones is passed through.
Accompanying drawing explanation
Fig. 1 is present system theory structure schematic diagram;
Fig. 2 is security module management system theory structure schematic diagram of the present invention;
Fig. 3 is wavelet transform process center of the present invention theory structure schematic diagram.
Embodiment
As shown in Figure 1 to Figure 3, a kind of major urban arterial highway filtering selective system based on wavelet transformation, it comprises traffic information acquisition system, security module management system and wavelet transform process center; Described traffic information acquisition system, mainly road pavement traffic real-time information positions collection by GPS; Described security module management system carries out security of system maintenance and backup and recovery to the information of road condition acquiring; Described wavelet transform process center is that the road conditions transport information gathered by described traffic information acquisition system is carried out processing and changes; Described road traffic real-time information is sent to described small echo by GSM, GPRS, CDMA and Internet various ways and exchanges processing enter by described traffic information acquisition system; Described wavelet transform process center is by road surface Signalized control road traffic.
Preferably, the job step of described small echo exchange processing enter is as follows:
A, collection transport information, obtain three-dimensional traffic information data body after pre-service;
B, Hilbert conversion is carried out to three-dimensional traffic information data body, reach three dimensional Phase cosine data volume;
C, three dimensional Phase cosine data volume is carried out piecemeal;
D, each three dimensional Phase cosine data volume piecemeal is carried out three-dimensional continuous wavelet transform;
E, obtain piecemeal discrete date body;
F, obtain transport information discrete date body.
Database of the present invention adopts small echo switching technology to consider that its level is disposed step by step: first, the equipment road pavement traffic real-time information such as the electronic eyes set up by major urban arterial highway are collected, then the information of collection is passed through GSM, GPRS, CDMA and Internet various ways is sent to small echo exchange processing enter and carries out information processing, wavelet transform process center is by carrying out pre-service to collection transport information, Hilbert changes, three dimensional Phase cosine data volume piecemeal, the steps such as three-dimensional continuous wavelet transform obtain transport information discrete date body, after analyzing and processing, instruction is sent to road surface signal lamp, by road surface Signalized control road traffic.
Wherein, security module management system is responsible for carrying out security of system maintenance and backup and recovery to the information of road condition acquiring.
The present invention is easy and simple to handle can be gathered major urban arterial highway Real-Time Traffic Volume and analyze, and carry out filtering with wavelet transformation and remove on major trunk roads that sporadic traffic is on the impact of main flow, the filtering achieving the major urban arterial highway main flow of invigorating large enterprises while relaxing control over small ones is passed through.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (1)
1. based on a major urban arterial highway filtering selective system for wavelet transformation, it is characterized in that: it comprises traffic information acquisition system, security module management system and wavelet transform process center; Described traffic information acquisition system, mainly road pavement traffic real-time information positions collection by GPS; Described security module management system carries out security of system maintenance and backup and recovery to the information of road condition acquiring; Described wavelet transform process center is that the road conditions transport information gathered by described traffic information acquisition system is carried out processing and changes; Described road traffic real-time information is sent to described wavelet transform process center by GSM, GPRS, CDMA and Internet various ways by described traffic information acquisition system; The job step at described wavelet transform process center is as follows:
A, collection transport information, obtain three-dimensional traffic information data body after pre-service;
B, Hilbert conversion is carried out to three-dimensional traffic information data body, reach three dimensional Phase cosine data volume;
C, three dimensional Phase cosine data volume is carried out piecemeal;
D, each three dimensional Phase cosine data volume piecemeal is carried out three-dimensional continuous wavelet transform;
E, obtain piecemeal discrete date body;
F, obtain transport information discrete date body.
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| CN104200684B true CN104200684B (en) | 2016-03-09 |
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| JP2004245821A (en) * | 2003-01-22 | 2004-09-02 | Matsushita Electric Ind Co Ltd | Traffic information providing method, traffic information providing system and device |
| CN1545324A (en) * | 2003-11-25 | 2004-11-10 | 浙江大学 | Traffic information collection device based on wavelet transformation compression |
| CN1560756A (en) * | 2004-03-09 | 2005-01-05 | 北京交通大学 | Intelligent traffic data processing method |
| CN1570942A (en) * | 2004-04-29 | 2005-01-26 | 北京交通大学 | A distributed intelligent traffic data processing system |
| CN201974937U (en) * | 2011-03-24 | 2011-09-14 | 黄颂晖 | Intelligent road traffic information collecting and publishing system |
| JP2011257848A (en) * | 2010-06-07 | 2011-12-22 | Toyota Central R&D Labs Inc | Crosswalk detection device and program |
| CN103871254A (en) * | 2012-12-11 | 2014-06-18 | 大连联达科技有限公司 | Urban transport system based on cloud technology |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004245821A (en) * | 2003-01-22 | 2004-09-02 | Matsushita Electric Ind Co Ltd | Traffic information providing method, traffic information providing system and device |
| CN1545324A (en) * | 2003-11-25 | 2004-11-10 | 浙江大学 | Traffic information collection device based on wavelet transformation compression |
| CN1560756A (en) * | 2004-03-09 | 2005-01-05 | 北京交通大学 | Intelligent traffic data processing method |
| CN1570942A (en) * | 2004-04-29 | 2005-01-26 | 北京交通大学 | A distributed intelligent traffic data processing system |
| JP2011257848A (en) * | 2010-06-07 | 2011-12-22 | Toyota Central R&D Labs Inc | Crosswalk detection device and program |
| CN201974937U (en) * | 2011-03-24 | 2011-09-14 | 黄颂晖 | Intelligent road traffic information collecting and publishing system |
| CN103871254A (en) * | 2012-12-11 | 2014-06-18 | 大连联达科技有限公司 | Urban transport system based on cloud technology |
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Address after: 238300 software building, 30 Xishan Road, hi tech Industrial Development Zone, Yijiang District, Anhui, Wuhu Patentee after: ANHUI DAER INTELLIGENT CONTROL SYSTEM CO., LTD. Address before: 238300 software building, 30 Xishan Road, hi tech Industrial Development Zone, Yijiang District, Anhui, Wuhu Patentee before: Anhui Daer Intelligent Control System Co., Ltd. |