CN106781461A - A kind of freeway net operation situation deduces thermal starting technology online - Google Patents
A kind of freeway net operation situation deduces thermal starting technology online Download PDFInfo
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- CN106781461A CN106781461A CN201611096876.6A CN201611096876A CN106781461A CN 106781461 A CN106781461 A CN 106781461A CN 201611096876 A CN201611096876 A CN 201611096876A CN 106781461 A CN106781461 A CN 106781461A
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- 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
- G08G1/0125—Traffic data processing
Abstract
Thermal starting technology, including herein below are deduced online the invention discloses a kind of freeway net operation situation：Road network operation situation based on thermal starting technology deduces model framework online, the comprising modules of model are deduced online including road network operation situation and transport need estimation is achieved with prediction, consistency check, the varying information of the traffic capacity of road network structure, middle sight traffic simulation engine, deduction real time data, archive data are loaded, deduce real-time road network operational factor output and scheduler module, data during road network running status is deduced are exported and preserved, and read real data files from other data sources.Freeway net operation situation of the invention deduces thermal starting technology and realizes that the high-speed simulation of real-time online is deduced online, and then completion is in the analysis of line network operation situation, and the future of road network is predicted, is deduced, for traffic administration person's emergency disposal decision-making provides quick technology and data supporting.
Description
Technical field
Thermal starting technology is deduced online the present invention relates to a kind of freeway net operation situation.
Background technology
Freeway net operation situation is deduced mainly by emulating the method deduced, and the change of the Running State that satisfies the need becomes
Gesture is predicted and assesses, and shows the space-time development process of road network running status.Current road network operation situation deduces emulation
Research, is after being calculated using mathematical method prediction based on historical data, situation development to be predicted in input analogue system mostly.
Simulation process needs loading preheating time more long, and in the case of large-scale road network, emulation needs longer loading preheating time,
It is little with actual conditions difference in the time period for analysis to ensure.In addition, current most emulation, in simulation process such as
Fruit has data to update or policy update, it is also desirable to rerun calculating, influences efficiency and is unsatisfactory for being moved in current road network management
State road network Study on Trend is studied and judged, the demand of real-time management and control strategy Fast Evaluation.
With the successive establishment of the mechanisms such as individual provinces and cities' road network management and emergency disposal center, how to the road in the range of province domain
Network operation situation is estimated and the demand predicted is more and clearer and more definite.Therefore, the analysis of road network operation situation how is rapidly completed,
It is that the current urgent technology for solving is asked for the quick early warning under road network operation early warning, especially emergency circumstances lays the foundation
Topic.Based on this, this patent aims at the middle online rapid deduction thermal starting technology for seeing emulation, to the future of road network
Carry out rapid deduction prediction.I.e. how emulate start in the period of quick loading thermal starting technology meet road network operation pipe
The real time execution rapid evaluation and forecast demand of reason person, current existing technology dynamically update and all kinds of in consideration real time data
When the dynamic input of accident is to the influence of road network, on the basis of middle Macro-traffic Flow deduces emulation, it is impossible to real
The function such as thermal starting is deduced in now emulation, has specifically included that real-time data imputing system, real-time status are preserved, historic state is quickly loaded
Deng.
The content of the invention
In view of this, it is an object of the present invention to provide a kind of high-speed simulation deduction for realizing real-time online, and then complete online
The analysis of road network operation situation, and the future of road network is predicted, is deduced, it is that traffic administration person's emergency disposal is determined
Plan provides quick technology and the freeway net operation situation of data supporting deduces thermal starting technology online.
In order to solve the above-mentioned technical problem, the technical scheme is that：
A kind of freeway net operation situation deduces thermal starting technology, including herein below online：
1）Road network operation situation based on thermal starting technology deduces model framework online, including road network operation situation deduces mould online
The comprising modules of type and transport need estimate with prediction, consistency check, the varying information of the traffic capacity of road network structure, in
Traffic simulation engine is seen, real time data archive is deduced, is achieved data loading, deduces real-time road network operational factor output and scheduling mould
Block, road network running status real time data achieves model and can be transported road network according to the output time interval of defined in setting file
Block status data, car number, vehicle location and routing information during row state deduction are exported and preserved, scheduling
Real time data can be achieved file and form required for being converted to quick stress model by module, and be read from other data sources real
When data file；
2）The quick loading technique of road network running status, the state in emulation deduction is loaded into achieving in way vehicle data, and
The start position in each subdivision section is placed it in, is quickly distributed on road network, after this, then new traffic needed
Ask and be loaded on road network, realize the thermal starting of emulation.
The technology of the present invention effect major embodiment is in the following areas：Using the basis based on middle macroscopic artificial rapid deduction technology
On, framework is deduced in modification emulation, and a kind of creative freeway net operation situation that proposes is deduced thermal starting technology, subtracted online
Preheating time required for few emulation deduction, realize the real-time operation to emulating deduction process and the future to road network
Deduced online.Meet real time execution monitoring, the demand of emergency disposal decision-making rapid evaluation of road network operational management person.
Brief description of the drawings
Fig. 1 is the theory diagram that a kind of freeway net operation situation of the invention deduces thermal starting technology online.
Fig. 2 is the model flow figure that a kind of freeway net operation situation of the invention deduces thermal starting technology online.
Specific embodiment
Below in conjunction with accompanying drawing, specific embodiment of the invention is described in further detail, so that technical solution of the present invention is more
Should be readily appreciated that and grasp.
As shown in figure 1, the road network operation situation based on thermal starting technology deduces the flow of model online：
The flow that road network operation situation based on thermal starting technology deduces model online is as follows, comprising simulation run control file,
Several parts such as scene changes control file, data loading, simulation run, the output of simulation result file and storage.
The detailed process deduced based on thermal starting technology line is as follows：
1）Simulation run control file is set, the relevant parameter during emulation is deduced, including the monitoring of real-time input file are set
Extraction time is spaced, the time interval of real-time output file generation, emulates a series of emulation such as time started, emulation end time
Control file.
2）According to the friendship of the following a period of time calculated in the real-time transport need for obtaining and travel demand forecast model
Logical demand, with reference to previous simulation run history file, generation emulation demand input control file.For example, previous simulation run is arrived
8:00, its running status is achieved, 8：When 30,8 can be got:00 to 8：Real on 30 road network enter and
Flow is sailed out of, this is converted to 8:00 to 8:30 road network demand is loaded, meanwhile, 8 are generated from prediction module:30 to
10：30 predicted flow rate.In road network loading vehicle processes, 8 are first loaded：00 archival state, reloads 8:00 to 8:30
Actual flow, reloads 8：30 to 10:30 predicted flow rate.
3）Operation emulation, the output result file of the corresponding correspondence timing node of generation, is preserved.
4）Status file to preserving changes storage, prepares for the input file in next cycle.
The quick loading technique of road network running status：
In dynamic simulation, by the real-time output module of road network running status, the road network shape of random time on road network can be exported
State is used as the initial state for emulating next time.The essential record numbering of all vehicles, place section, road in real-time output module
Footpath information, destination information etc..As shown in Fig. 2 in existing emulation, if emulation starts, vehicle will all be clicked through from
Row is loaded, it is necessary to the regular hour can be just distributed in road network.This technology is finely divided by by section, can be by vehicle institute
It is marked and records in road section information, before emulation starts in next time, vehicle is placed into the upstream starting point in each subdivision section
Position, realizes the quick loading of road network running status.
The technology of the present invention effect major embodiment is in the following areas：Using the basis based on middle macroscopic artificial rapid deduction technology
On, framework is deduced in modification emulation, and a kind of creative freeway net operation situation that proposes is deduced thermal starting technology, subtracted online
Preheating time required for few emulation deduction, realize the real-time operation to emulating deduction process and the future to road network
Deduced online.Meet real time execution monitoring, the demand of emergency disposal decision-making rapid evaluation of road network operational management person.
Certainly, it is more than representative instance of the invention, in addition, the present invention can also have other various specific implementations
The technical scheme that mode, all use equivalents or equivalent transformation are formed, all falls within the scope of protection of present invention.
Claims (1)
1. a kind of freeway net operation situation deduces thermal starting technology online, it is characterised in that including herein below：
1）Road network operation situation based on thermal starting technology deduces model framework online, including road network operation situation deduces mould online
The comprising modules of type and transport need estimate with prediction, consistency check, the varying information of the traffic capacity of road network structure, in
Traffic simulation engine is seen, real time data archive is deduced, is achieved data loading, deduces real-time road network operational factor output and scheduling mould
Block, road network running status real time data achieves model and can be transported road network according to the output time interval of defined in setting file
Block status data, car number, vehicle location and routing information during row state deduction are exported and preserved, scheduling
Real time data can be achieved file and form required for being converted to quick stress model by module, and be read from other data sources real
When data file；
2）The quick loading technique of road network running status, the state in emulation deduction is loaded into achieving in way vehicle data, and
The start position in each subdivision section is placed it in, is quickly distributed on road network, after this, then new traffic needed
Ask and be loaded on road network, realize the thermal starting of emulation.
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| CN110188490A (en) * | 2019-06-03 | 2019-08-30 | 珠海格力电器股份有限公司 | Improve method and device, storage medium and the electronic device of data simulation efficiency |
| CN111815953A (en) * | 2020-08-31 | 2020-10-23 | 深圳市城市交通规划设计研究中心股份有限公司 | Traffic incident-oriented method for evaluating traffic control effect of highway |
| CN112201033A (en) * | 2020-09-08 | 2021-01-08 | 同济大学 | Road traffic operation active control strategy selection method |
| CN112308332A (en) * | 2020-11-10 | 2021-02-02 | 交控科技股份有限公司 | Rail transit parallel deduction system and method |
| CN113065215A (en) * | 2021-03-22 | 2021-07-02 | 广州弘毅软件科技有限公司 | Method and device for predicting operation situation of expressway |
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Inventor after: Zhang Jisheng Inventor after: Zhao Li Inventor after: Cui Wei Inventor after: Zhang Jinjin Inventor after: Wang Hua Inventor after: Wang Tibin Inventor after: Niu Shuyun Inventor after: Zhang Fan Inventor after: Zhou Xuesong Inventor after: Sun Xiaoliang Inventor after: Liu Jianping Inventor after: Li Honghai Inventor after: Zhang Li Inventor after: Zhu Lili Inventor before: Zhang Jisheng Inventor before: Zhao Li Inventor before: Cui Wei Inventor before: Zhang Jinjin Inventor before: Wang Hua Inventor before: Wang Tibin Inventor before: Zhang Fan Inventor before: Zhou Xuesong Inventor before: Niu Shuyun Inventor before: Sun Xiaoliang Inventor before: Liu Jianping Inventor before: Li Honghai Inventor before: Zhang Li Inventor before: Zhu Lili |
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Application publication date: 20170531 |