CN102779406A - Cloud computing intelligent transportation scheduling platform based on Beidou time service technology - Google Patents

Abstract

The invention relates to a cloud computing intelligent transportation scheduling platform based on Beidou time service technology. The platform comprises a cloud computing intelligent transportation platform and a traditional intelligent transportation system platform, wherein the traditional intelligent transportation system platform is loaded on the cloud computing intelligent transportation platform; and a cloud computing platform, a Beidou time server and a Beidou time service machine are loaded on the traditional intelligent transportation system platform. The real-time property of scheduling optimization is realized by introducing control and planning technology based on precise clock, and precise time service technology provided by a Beidou navigation satellite system is adopted in the clock. Meanwhile, intelligent transportation scheduling involves large-scale computing and has requirements on computing data amount and computing speed, therefore, the current cloud computing technology must be adopted in computing. The passive characteristic of transportation information issue of the traditional intelligent transportation platform is changed, and a navigation function is provided to a vehicle in an active way. The real-time scheduling and navigation functions of the vehicle can be realized really, and the utilization rate of a road network resource can be optimized.

Description

Cloud computing intelligent traffic dispatching platform based on Big Dipper Service of Timing

Technical field

The present invention relates to the traffic scheduling field, relate in particular to a kind of cloud computing intelligent traffic dispatching platform based on Big Dipper Service of Timing.

Background technology

Intelligent transportation system be with advanced person's infotech, data communication transmission technology, sensor technology, embedded technology, electron controls technology, Computer Processing technology, Distributed Calculation machine technology and cloud computing technology etc. organically integrated apply to face traffic control system entirely and set up a kind of on a large scale, comprehensive playing a role, in real time, comprehensive traffic transportation management system accurately and efficiently.

The big city of various countries, the world today exists congested in traffic problem invariably; With the developed country U.S. is example; During 1976 to 1997, year car kilometer number rises with 77% speed, but the growth data of road construction same period mileage but are merely 2%; In the peak time of urban transportation, 54% be in congestion state.Because congested in traffic, people consumes every day time ratio on and off duty more than at ordinary times 1.5 hours, cause commercial vehicle in communications and transportation, to be incured loss through delay simultaneously, the transportation cost that increased flesh.Yet limited soil and economic constraints etc. make road can not reach satisfied relatively mileage number; So just need be under the prerequisite of not expanding road network scale; Improve the traffic capacity of traffic network; This just needs means such as integrated use present information and mechanics of communication to improve the level of traffic administration, improves the efficient of communications and transportation.

At present, the traffic problems that developed countries such as the U.S., West Europe and Japan face for final result jointly competitively drop into substantial contribution and manpower, and beginning is carried out road traffic on a large scale and transported intelligentized research enforcement.In China, country also drops into a large amount of man power and materials with some local governments and is being used for research and sets up the intelligent transportation network.With Beijing is example; Actively integrating various transport information resources; Build intelligent transportation system; A collection of main projects such as traffic all-purpose card, expressway network toll and drive-in toll, inter-provincial long-distance comprehensive Passenger Transport Hub infosystem are built up in plan; Big force urges taxi phone chauffeur market development is built public traffic dynamic information collection based on electronic stop plate with issue, serve demonstration project etc. based on the motor vehicle navigation of Floating Car dynamic information collection and based on public's trip informations such as parking guidance of parking lot dynamic information collection.

Along with intelligent traffic administration system Study on Technology and development; Many single technologies ripe relatively (for example utilize the Big Dipper/GPS vehicle positioning technology, measure the vehicle operating state black box technology, drive-in toll technological, utilize IC-card equipment to gather on the bus station guest's number etc.); It should be noted that simply piling up of these technology can not constitute real efficient system, need to constitute real informationalized intelligent transportation net through suitable technique is integrated.And at present; No matter be in developed country or in China; Also there are not a kind of fairly perfect technology and the scheme can be each involved node of traffic (private car, bus, taxi, commercial operation car, officer's car, emergency car, track vehicle, road, signal lamp, outdoor information display screen, electronic stop plate, charge station, parking lot, traffic surveillance and control center, vehicle supervision department, mobile data collection point etc.); Carry out timely, accurate and meticulous informational linkage, really build an intelligent transportation information exchange platform.

But see that from development situation the intelligent transportation of entire city is similar to a chaos system under the situation of the spontaneous decision-making of each vehicle, situation is uncontrollable.Traditional intelligent traffic administration system platform is through the issuing traffic guidance information, can go in order at guided vehicle to a certain degree, improve the overall operation environment, but still owing to rely on the spontaneous decision-making of each vehicle, it is not high that therefore whole traffic is improved degree.If really realize traffic improvement, must the situation of original spontaneous decision-making of each vehicle be improved becomes global decisions; Disperse policy decision with former changes centralized decision-making into; By unified operation conditions issue, change unified operational plan issue into.In this case, the intelligent traffic administration system platform in city with becoming the intelligent traffic dispatching platform transition, just might be realized the global optimization of traffic resource, and overall operational efficiency is the highest.

Summary of the invention

The present invention is directed to the problems referred to above and proposed a kind of intelligent traffic dispatching system scheme based on real-time time.On the basis of traffic scheduling algorithm, adopt big-dipper satellite Service of Timing and cloud computing technology.Accurate unified time is introduced in the satellite time service in system.The powerful calculating ability of cloud computing technology can be accomplished monitoring, analysis, prediction and the scheduling feature of intelligent transportation in the timeslice that requires; And operation plan is sent to each vehicle and management node in the platform through the cloud platform; And the implementation status of real-time inspection operation plan, carry out dynamic evaluation and dynamically adjustment.

In order to reach the object of the invention, this patent is taked following technical scheme:

A kind of cloud computing intelligent traffic dispatching platform based on Big Dipper Service of Timing.Comprise cloud computing intelligent transportation platform and traditional intelligence traffic system platform; Said traditional intelligence traffic system platform loads is loaded with cloud computing platform, Big Dipper time server and Big Dipper time service machine on the said traditional intelligence traffic system platform on cloud computing intelligent transportation platform.

This patent transform information published method simple in the traditional intelligence traffic control system as scheduling mode through special algorithm; And the interior vehicle of while tracker is to the implementation status of operation plan; The operation plan of adjustment vehicle is realized the optimization of whole traffic conditions in real time.In order to realize the real-time of optimizing scheduling, introduce control and planning technology in the system, the accurate Service of Timing that clock adopts Big Dipper Navsat to provide based on precision clock; Simultaneously, intelligent traffic dispatching has the requirement of computational data amount and computing velocity owing to relate to large-scale calculations, thereby calculates and must adopt existing cloud computing technology.

Wherein, The vehicle intelligent navigation module is to this patent core; Mainly be made up of communication module, positioning navigation module, network time service module and Big Dipper time service module, communication module carries out data communication through telecommunication techniques such as WIFI, 3G/4G and cloud computing intelligent transportation platform.Positioning navigation module can be confirmed position, speed and the direction of vehicle, when plan is gone in the scheduling that receives platform, can plan circuit according to schedule simultaneously.Network time service module can obtain reference time from the Big Dipper time server on the platform.Big Dipper time service module can obtain the Big Dipper time from big-dipper satellite, and network delay is calibrated.

This patent has changed the passive characteristics of the transport information issue of traditional intelligence traffic platform in the past, is that vehicle provides navigation feature with mode initiatively.The present invention can really realize vehicle Real-Time Scheduling and navigation function, can make the utilization factor of road network resource reach maximization.。

Description of drawings

According to accompanying drawing and embodiment this patent is described further below:

Fig. 1 is a this patent one-piece construction synoptic diagram

Fig. 2 is a this patent navigation module structural representation

Fig. 3 is the total road operation in the said city of a this patent resource situation synoptic diagram

Embodiment

As shown in Figure 3, with the operating position of TC as the total path resource in city, TC (T) representes from next timeslice, the urban road resource operating position relevant with the time to T the timeslice.In moment, we use C in some timeslices _IjExpression is individual to the operating position of the bus of putting to path resource, with C ' from i starting point to j _IjExpression, is used the path resource operating position from i j the POV that arrives at a station of standing again

Expression is from i the bus road resource operating position of sending out the next timeslice of standing.Expression is from i the privately owned track road resource operating position of sending out the next timeslice of standing with

; With

expression from the historical data travel forecasting systems, obtain to the 1st route exit road resource operating position; Represent the bus road resource operating position of arriving at a station from the 1st line outlet to j with

, expression is from the 1st privately owned track road resource of arriving at a station with

.

The total road operation resource situation TC in city (T) can be expressed as:

$\mathrm{TC}\left(T\right)=\underset{t=1}{\overset{T}{\mathrm{\Σ}}}(\underset{s=1}{\overset{k}{\mathrm{\Σ}}}(\underset{i=1}{\overset{n}{\mathrm{\Σ}}}\underset{j=1}{\overset{m}{\mathrm{\Σ}}}(C_{\mathrm{ij}}{X}_{\mathrm{ij}}^s\left(t\right)+C_{\mathrm{ij}}^{\′}{X}_{\mathrm{ij}}^{\′s}\left(t\right))+\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{C}_i^2{Y_i}^s\left(t\right)+\underset{l=1}{\overset{p}{\mathrm{\Σ}}}(C_l^3{U}_l^3\left(t\right)+C$

$+\underset{l=1}{\overset{p}{\mathrm{\Σ}}}\underset{j=1}{\overset{m}{\mathrm{\Σ}}}(C_{\mathrm{lj}}^4{Z}_{\mathrm{lj}}^s\left(t\right)+C_{\mathrm{lj}}^{\′4}{Z}_{\mathrm{lj}}^{\′s}\left(t\right)))$

All

must observe following constraint condition as a whole with

, can realize the path resource configuration of global optimum.。

The first, the constraint of starting point path resource ability:

$\underset{j=1}{\overset{m}{\mathrm{\Σ}}}(X_{\mathrm{ij}}^s\left(t\right)+X_{\mathrm{ij}}^{\′s}\left(t\right))+Y_i^s\left(t\right)+Y_i^{\′s}\left(t\right)\≤P_i^s\left(t\right),$ i＝1，2，…，n；s＝1，2，…，k；t＝1，2，…，T

The second, retrain to some path resource ability:

$\underset{s=1}{\overset{k}{\mathrm{\Σ}}}(\underset{j=1}{\overset{m}{\mathrm{\Σ}}}{X}_{\mathrm{ij}}^s\left(t\right)+Y_i^s\left(t\right))\≤L_i\left(t\right),$ i＝1，2，…，n；

t＝1，2，…，T

System is adopted as the mode that all vehicles that platform has jurisdiction over provide the management and running plan, realizes global optimization.When formulating dynamic global optimization scheme, mathematical computations that must be a large amount of and accurate clock.

The intelligent traffic dispatching system adopts the pattern of cloud computing platform to build; The cloud computing platform that adopts specialized company to set up; The intelligent traffic dispatching system is loaded into application to move on the cloud computing platform and gets final product, and can make full use of the powerful calculating and the data-handling capacity of cloud computing platform.Require platform with the Big Dipper time as reference time, Big Dipper time marking is included in the multidate information and operation plan of all issues of platform.

Each automobile in the platform; All be mounted with the vehicle intelligent navigation module, have the information interaction function with system platform, simultaneously can be with the multidate information of Big Dipper time marking combined with intelligent platform issue; Operation plan is carried out, and can dispatching platform with implementation and execution result feedback.

Said with the cloud computing platform of Big Dipper time as reference time.Special Big Dipper time service module promptly is installed in existing cloud computing platform,, in platform, sets up special time server simultaneously with the reference time of Big Dipper time as whole flat, in platform with the outer equipment transmission platform datum time of platform.Big Dipper time service machine can be purchased existing product, is installed in precise time is provided on the platform.

Person skilled in the art should be familiar with; The above embodiment is used for explaining the object of the invention; And be not with opposing qualification of the present invention; As long as in essential scope of the present invention, variation, modification that the foregoing description is done all will drop in the claim scope of the present invention.

Claims (5)

1. cloud computing intelligent traffic dispatching platform based on Big Dipper Service of Timing; It is characterized in that; Comprise cloud computing intelligent transportation platform and traditional intelligence traffic system platform; Said traditional intelligence traffic system platform loads is loaded with cloud computing platform, Big Dipper time server and Big Dipper time service machine on the said traditional intelligence traffic system platform on cloud computing intelligent transportation platform.

2. according to right 1 described intelligent traffic dispatching platform, it is characterized in that, as chronomere, be called timeslice with the minimum interval that is of practical significance in the system.

3. according to right 1 described intelligent traffic dispatching platform, it is characterized in that, introduce the big-dipper satellite time.

4. according to right 1 described intelligent traffic dispatching platform, it is characterized in that, adopt cloud computing platform, solve monitoring, analysis, prediction and the scheduling feature of intelligent transportation.

5. according to right 4 described intelligent traffic dispatching platforms, it is characterized in that, adopt WIFI, 3G or 4G pattern to solve the problem that vehicle moves middle dynamic dispatching.

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