CN201142163Y - Road traffic flow model simulation device - Google Patents
Road traffic flow model simulation device Download PDFInfo
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- CN201142163Y CN201142163Y CNU2008200280479U CN200820028047U CN201142163Y CN 201142163 Y CN201142163 Y CN 201142163Y CN U2008200280479 U CNU2008200280479 U CN U2008200280479U CN 200820028047 U CN200820028047 U CN 200820028047U CN 201142163 Y CN201142163 Y CN 201142163Y
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Abstract
The utility model relates to road traffic flow research field and discloses a road traffic flow model simulator which simulates a road, a wireless camera, a model car and a host computer. The wireless camera is arranged on the model car; the model car is provided with a remote control receiving module and a remote control sending module; the remote control sending module is connected with the host computer; and the host computer collects images via the wireless camera, processes data, and wirelessly and remotely controls the model car to run on the simulated road. The road traffic flow model simulator can provide valuable traffic flow references to traffic planning schemes, and be widely used in the teaching and the popular science fields by intuitively showing and representing the characteristics of the traffic flow.
Description
Technical field
The utility model relates to the road traffic flow research field, relates in particular to a kind of highway communication flow model simulator.
Technical background
Raising along with the Chinese economic development and the level of urbanization, automobile pollution constantly increases, the road network traffic capacity more and more can not satisfy the needs that the volume of traffic increases, the traffic congestion of Yin Faing, traffic hazard, environmental pollution and energy dissipation situation are on the rise thus, are seriously restricting the development in city.
The Traffic Flow Simulation technology provides effective help for addressing these problems.Pass through Traffic Flow Simulation, can be under the situation that does not change existing traffic infrastructure, the ruuning situation of all kinds of traffic systems is simulated and analyzed, and corresponding traffic programme scheme is reasonably predicted and assessed, improve traffic, cost-effective purpose thereby reach.
At present in the world for the emulation of traffic flow particularly microscopic simulation mainly be based on the software emulation that computer system simulation technology and virtual reality technology are carried out.But there is certain limitation in these simulation software simulations at present, for example, existing Traffic Flow Simulation software is when carrying out Traffic Flow Simulation, generally driving behavior is influenced the consideration deficiency of traffic flow, setting based on the parameter of vehicle own is also very limited, and not accurate enough and comprehensive, can't make effective simulation to vehicle performance; Secondly, to real road conditions, as the road material, surface friction coefficient, the factor that the gradient etc. influence traffic characteristics does not take into full account yet.Simultaneously, the traffic flow simulation model of setting up based on simulation software needs the user to carry out the lot of data input and need demarcate the input data.And for some practical problems, for example driving vehicle is difficult to obtain with car sensitivity, retardation time and with these data such as car sighting distances.
Summary of the invention
The purpose of this utility model is to provide a kind of highway communication flow model simulator.It can utilize the wagon flow on the car mould simulating reality road to carry out matter emulation, considered of the influence of the performance of vehicle own for traffic stream characteristics, can reduce simultaneously complicated parameter demarcation when setting up realistic model in the software emulation, the situation of change that reflects traffic flow modes in the road net that can be more true and reliable.
In order to reach above-mentioned technical purpose, the technical solution of the utility model is to realize like this, a kind of highway communication flow model simulator, comprise simulated roadway, wireless camera, model car and host computer, described wireless camera is arranged on the model car, described model car has remote control receiver module and remote-control transmitting module, described remote-control transmitting module links to each other with host computer, described host computer is by the wireless camera images acquired, carry out data processing, and wireless telecontrolled model car travels on simulated roadway.
Aodi Toy Industry Co., Ltd., Guangdong's Christian Dior thunder speed that described model car was selected for use 1: 24 is stepped on telecar.
Described wireless camera is selected the TD-A256 type wireless digital camera of the sensible Electronics Co., Ltd. in Wuhan for use.
Advantage of the present utility model: (1) is because the utility model adopts real model emulation, can carry out artificial modeling fully at the traffic flow character of a certain particular dummy road, like this, the emulation that the traffic flow microvisual model of setting up in conjunction with the real road situation is come out than computer virtual can more intuitively reflect the traffic flow character in real highway section really, reflection is directly perceived, and is with strong points.(2) in real model emulation process, 1: 24 model car is not only the ratio of real vehicle is dwindled, it can also reflect the dynamics of real vehicle, comprise acceleration and deceleration characteristic, steering characteristic, when long descending or viaduct travel vehicle's center of gravity to the key factors such as influence of wagon flow, and can carry out comparatively real simulated to driving behavior by host computer, so simulation result is with a high credibility.(3) the traffic flow microscopic simulation based on real model can combine with Computer Simulation, can verify result with the emulation of evaluates calculation machine fully by emulation, and carry out verification and correction with this model parameter to Computer Simulation, provide more valuable reference foundation for the traffic programme scheme simultaneously.In addition, the utility model can also be widely used in teaching, science popularization field, demonstrates and show the characteristics of traffic flow intuitively.
Marginal data
Fig. 1 is a synoptic diagram of the present utility model.
Fig. 2 is the model car synoptic diagram.
Fig. 3 is a two-way two lane highways crossing simulated roadway synoptic diagram, and wherein L1, L2, L3, L4 are four tracks; D1, D2, D3, D4 are traffic lights.
Embodiment
With reference to Fig. 1, wireless camera comprises image acquisition module 3, image emissions module 2 and image receiver module 6.Model car comprises vehicle body 1, remote-control transmitting module 7 and remote control receiver module 4.Vehicle body 1 front upper place of model car is equipped with the image capture module 3 of wireless camera, and the image emissions module 2 of wireless camera and the remote control receiver module 4 of model car are equipped with in the bottom.Host computer 5 respectively with the remote-control transmitting module 7 of the image receiver module 6 of wireless camera, model car with the serial communication of USB2.0 mode.The image capture module 3 of wireless camera is connected by the video communication cable with image emissions module 2, is that 2GHz carries out radio communication with the frequency between this image emissions module 2 and the image receiver module 6.Communication frequency is 40MHz or 27MHz between the remote-control transmitting module 7 of model car and the remote control receiver module.
Host computer 5 also is used for the magnitude of traffic flow simulation of road, the simulation calculation of all kinds of pavement evaluation indexs and the reproduction of traffic hazard.Image acquisition and process software module, model car Control Software module and traffic flow assessment software module are installed in the host computer 5.Image acquisition and process software module can load the image information of a plurality of model cars simultaneously, and can carry out independently analyzing and processing to multiple image information simultaneously, calculate the state that spacing also can be discerned the place ahead traffic lights.Model car Control Software module is according to the result of image acquisition and process software module, in conjunction with the theoretical control corresponding algorithm of formulating of driving behavior, the scheme of travelling of decision-making vehicle, and the remote-control transmitting module by model car is wirelessly transmitted to the remote control receiver module of model car with control information, the travelling of controlling models car.When traffic congestion took place in the track, follow-up vehicle can be judged the place ahead vehicle condition, realized stopping, waits for or independently track surmounting front truck and moving on; When passing through the crossing, vehicle can be waited for or startup according to the traffic lights show state, and can realize advancing, turning left or turn right according to traffic lights.Traffic flow assessment software module is carried out track record to the ruuning situation of each car, obtains the various evaluation indexes of road network, and these evaluation indexes are carried out the traffic assessment and analyzed.
With reference to Fig. 2, the vehicle body front upper place of model car is equipped with the image capture module 3 of wireless camera, and the height of this image capture module 3 and angle can be regulated, the vertical and horizontal visual field that can drive simulating person.Aodi Toy Industry Co., Ltd., Guangdong's thunder speed that model car was selected for use 1: 24 is stepped on telecar 212 series of racing, this family car drives (power supply 4.8V) by direct current generator, and steering wheel control turns to, and can realize advancing, retreat, turn left, professional digital segmentation remote control mode is adopted in actions such as right-hand rotation, 7 sections adjustable-speed of forward-reverse, about change 16 grades and regulate the turning radians, can realize accurately controlling 15～20 meters of remote control distances.The TD-A256 type wireless digital camera that wireless camera adopts the sensible Electronics Co., Ltd. in Wuhan to produce, the image detection frequency of this type camera is 30 frames/s, and transmission range can reach 1000 meters, and antijamming capability is strong, can satisfy the emulation needs.TD-A256 type camera is by being installed at the 12V power module power supply on the model car.
Model car travels on simulated roadway shown in Figure 3, in the process of advancing, at first the place ahead image (is comprised front vehicles information by wireless camera, lane information, traffic lights situation etc.) gather, be transferred to host computer, image acquisition and process software module are handled receiving image, processing result image is delivered to model car Control Software module, the scheme of travelling of the control program decision-making vehicle of this module, and control information is wirelessly transmitted to the remote control receiver module by the remote-control transmitting module of model car, by the acceleration of this remote control receiver module controlling models car, slow down, stop, wait for, action such as overtake other vehicles.At last, traffic flow assessment software module is carried out track record to the ruuning situation of each car, obtains the various evaluation indexes of road network, and these evaluation indexes are carried out the traffic assessment and analyzed.
Simulated roadway can be designed to seal circuit so that the vehicle circulation is travelled and carry out repeatedly emulation fully according to model car ratio micro.The simulated roadway surrounding environment is also dwindled according to the model car ratio fully based on reality, and crossing, expressway charge station, viaduct, tunnel etc. can be set on simulated roadway.According to the needs of emulation, can start a plurality of model cars in the different periods and participate in emulation, vehicle can be variety classeses such as car, lorry, bus, simulates different input flow rates.The road surface material of simulated roadway adopts pavement materials such as pitch, can truly reflect actual road surface situation.
Claims (3)
1, a kind of highway communication flow model simulator, comprise simulated roadway, wireless camera, model car and host computer, described wireless camera is arranged on the model car, described model car has remote control receiver module and remote-control transmitting module, described remote-control transmitting module links to each other with host computer, described host computer carry out data processing, and wireless telecontrolled model car travels on simulated roadway by the wireless camera images acquired.
2, a kind of highway communication flow model simulator according to claim 1 is characterized in that, described model car selects for use Aodi Toy Industry Co., Ltd., Guangdong's thunder speed of 1:24 to step on telecar.
3, a kind of highway communication flow model simulator according to claim 1 is characterized in that, described wireless camera is selected the TD-A256 type wireless digital camera of the sensible Electronics Co., Ltd. in Wuhan for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200280479U CN201142163Y (en) | 2008-01-08 | 2008-01-08 | Road traffic flow model simulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200280479U CN201142163Y (en) | 2008-01-08 | 2008-01-08 | Road traffic flow model simulation device |
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| CN201142163Y true CN201142163Y (en) | 2008-10-29 |
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| CNU2008200280479U Expired - Fee Related CN201142163Y (en) | 2008-01-08 | 2008-01-08 | Road traffic flow model simulation device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109824A (en) * | 2011-01-05 | 2011-06-29 | 成都运达轨道交通设备有限公司 | Device for simulating combined dynamics of freight train and simulation method thereof |
| CN101510279B (en) * | 2009-03-25 | 2011-09-14 | 同济大学 | Support system for traffic planning business and reconstruction method for business flowpath |
| CN102354467A (en) * | 2011-07-08 | 2012-02-15 | 华南理工大学 | Comprehensive test platform for detecting traffic flow and test method thereof |
| CN102436770A (en) * | 2011-08-23 | 2012-05-02 | 北京工业大学 | Experimental teaching basic platform for traffic information and control |
| CN102682155A (en) * | 2012-03-16 | 2012-09-19 | 王晓原 | Network analysis micro-simulation system for urban road traffic |
| CN103299353A (en) * | 2011-01-14 | 2013-09-11 | 三菱重工业株式会社 | Traffic-flow simulation apparatus, traffic-flow simulation program, and traffic-flow simulation method |
| CN109637257A (en) * | 2019-02-27 | 2019-04-16 | 西南科技大学 | A kind of experimental teaching device with integrated traffic signal control |
| CN113436522A (en) * | 2021-06-18 | 2021-09-24 | 合肥磐石自动化科技有限公司 | Unmanned driving demonstration device based on cross road and control method thereof |
-
2008
- 2008-01-08 CN CNU2008200280479U patent/CN201142163Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101510279B (en) * | 2009-03-25 | 2011-09-14 | 同济大学 | Support system for traffic planning business and reconstruction method for business flowpath |
| CN102109824A (en) * | 2011-01-05 | 2011-06-29 | 成都运达轨道交通设备有限公司 | Device for simulating combined dynamics of freight train and simulation method thereof |
| CN103299353A (en) * | 2011-01-14 | 2013-09-11 | 三菱重工业株式会社 | Traffic-flow simulation apparatus, traffic-flow simulation program, and traffic-flow simulation method |
| CN103299353B (en) * | 2011-01-14 | 2016-06-01 | 三菱重工业株式会社 | traffic flow simulation device, traffic flow simulation program and traffic flow simulation method |
| CN102354467A (en) * | 2011-07-08 | 2012-02-15 | 华南理工大学 | Comprehensive test platform for detecting traffic flow and test method thereof |
| CN102436770A (en) * | 2011-08-23 | 2012-05-02 | 北京工业大学 | Experimental teaching basic platform for traffic information and control |
| CN102682155A (en) * | 2012-03-16 | 2012-09-19 | 王晓原 | Network analysis micro-simulation system for urban road traffic |
| CN109637257A (en) * | 2019-02-27 | 2019-04-16 | 西南科技大学 | A kind of experimental teaching device with integrated traffic signal control |
| CN113436522A (en) * | 2021-06-18 | 2021-09-24 | 合肥磐石自动化科技有限公司 | Unmanned driving demonstration device based on cross road and control method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081029 |