CN104933879A - Traffic information collecting, inducing and publishing method based on Internet of Things - Google Patents
Traffic information collecting, inducing and publishing method based on Internet of Things Download PDFInfo
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- CN104933879A CN104933879A CN201410104106.6A CN201410104106A CN104933879A CN 104933879 A CN104933879 A CN 104933879A CN 201410104106 A CN201410104106 A CN 201410104106A CN 104933879 A CN104933879 A CN 104933879A
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Abstract
The invention provides a traffic information collecting, inducing and publishing method based on an Internet of Things. A wireless geomagnetism detector, a microwave vehicle detector and a video detector form a front end data collecting system used for data collection; collected vehicle information is sent back to a data center through a transmission device; by means of a data processing server, the data center carries out data fusion analysis and information publishing according to various kinds of collected sensor information, and processed information provides data supporting to business applications of other up levels.
Description
Technical field
The present invention relates to a kind of intelligent traffic administration system technology based on Internet of Things, be specifically related to a kind of traffic information collection based on Internet of Things induction dissemination method.
Background technology
Current intelligent transportation system (ITS) obtains develop rapidly, and day by day become improve conevying efficiency, improve traffic safety, reduce air-polluting important channel.In real time, traffic information collection accurately realizes traffic control and management, and the prerequisite of the application such as Traffic flow guidance and key.
In real time, traffic information collection is accurately the basis of intelligent transportation.According to the vehicle data information collected comprehensive convergence analysis process is carried out to information, realize Traffic information demonstration, the effects such as traffic signalization.
The Main Means that current traffic information gathers is primarily of sensor technologies such as microwave, video, ground induction coil, ultrasound wave, Floating Car.By transport information software platform algorithm, Information issued is realized to the various data analysis process detected, the traffic data collection formed by this system architecture is at present issued and be there is many drawbacks and weak point, such as various single detection resources the data precision is not high, data accuracy is easily subject to external factor impact, and checkout equipment does not wait by force the road traffic condition adaptability of various complex condition and creates impact to the practice effect that traffic information collection is issued.
Summary of the invention
The object of the invention is to, by adopting the method for integrated multi-source heterogeneous information acquisition to solve current techniques Problems existing, comprehensively analyze for the multi-source heterogeneous information collected, make the result after calculating by analysis more accurate.
Technical scheme of the present invention is:
Based on a traffic information collection induction dissemination method for Internet of Things, it is characterized in that: adopt wireless geomagnetism detecting device, microwave vehicle detecting device and video detector composition front end data acquisition system to carry out data acquisition; Described wireless geomagnetism be by crossing each track mouth a geomagnetism detecting device is installed, geomagnetism detecting device by judge vehicle by time cause surrounding magnetic field change and to receiving antenna send radio signal, thus by crossing signals machine enclosure by data back to data center; Described microwave vehicle detecting device is installed in the side vertical rod of road, and by optical transmission device, serial data is back to data center, and all microwave serial datas are converted to network data by serial server by the heart in the data; It is dispose CCTV camera at crossing place that described video detects, and in appointed area, carries out mobile object analysis by analysis software, and the information of vehicles received is back to data center by transmission equipment; Data center by data processing server, to be analyzed by data fusion according to the various sensor informations collected and carries out Information issued, and providing data supporting by the service application that the information after processing is other upper stratas.
The method that this induction of the acquisition of road traffic information based on Internet of Things of the present invention is issued adopts by wireless geomagnetism system and video, the technological means such as microwave carry out unique Algorithm Analysis after merging, make the result after analysis more with high accuracy than single information source, the magnitude of traffic flow of more realistic road and congestion level, and the data crossed through algorithm process are passed to the above application system of data collection layer, the function that the data acquisition making it can not only possess intelligent transportation itself is issued, but also by these type of data, the police strength of social face road is disposed, accident prediction provides data supporting, traffic information collection delivery system is made to possess more timeliness meaning.
Embodiment
Data acquisition is carried out by adopting wireless geomagnetism detecting device, microwave vehicle detecting device and video detector composition front end data acquisition system in front end of the present invention, wireless geomagnetism be by crossing each track mouth a geomagnetism detecting device is installed, geomagnetism detecting device by judge vehicle by time cause surrounding magnetic field change and to receiving antenna send radio signal, thus by crossing signals machine enclosure by data back to data center.Microwave vehicle detecting device is generally installed in the side vertical rod of road, and by optical transmission device, serial data is back to data center, and all microwave serial datas are converted to network data by serial server by the heart in the data.Video detection technology disposes CCTV camera at crossing place, and in appointed area, carry out mobile object analysis by analysis software, the information of vehicles received is back to data center by transmission equipment, data center is used for the data processing server of traffic information collection induction delivery system by disposing, to be analyzed by data fusion according to the various sensor informations collected and adopt unique algorithmic technique realize the accurate process of Traffic Information and carry out Information issued, and providing data supporting by the service application that the information after processing is other upper stratas.
1, wireless geomagnetism is by disposing wireless geomagnetism detecting device at belisha beacon place entrance lane, wirelessly send data to receiver, the signal that earth magnetism is launched is reached intersection annunciator and finally passes back to command centre by receiver again, realize the acquisition function of traffic flow data, and can according to the dynamic auto allotment teleseme of traffic conditions.
Concrete laying mode is as follows:
Using the crossroad in two-way 8 tracks as standard crossing example, geomagnetic sensor distance stop line 1.5 meters on direction, crossing 4, amounting to 4 × 4 has 16, and its signal accesses to SCATS, so need the Date Conversion Unit on prestowage 16 tunnels.Center gathers traffic parameter data by ITS port.
By disposing wireless geomagnetism system, accurately recording the speed of a motor vehicle, traffic density, journey time, vehicle flowrate and road also can be provided to account for the parameters such as rate.
Simultaneously for SCATS system real-time time-mixed provides supplemental characteristic.Utilize the process that wireless detector passes through measurement data, exportable and the large holding time measurement result measure-alike to 5 meters of inductive coils exports, the vehicle of the movement that is connected can be distinguished again simultaneously, data on flows is accurately provided, compared with use inductive coil, solve whistle control system hope large scale coil and measure the holding time but the contradiction that adhesion vehicle can not be distinguished.
2, microwave vehicle detecting device is a kind of radar detector being operated in microwave frequency band, it is to the vehicle emissions fm microwave travelled, the vehicle that microwave is traveling stops to be launched, reflection wave makes frequency offset by Doppler's benefit, can detect according to the skew of this frequency and to pass through according to vehicle, through receiving, processing, export a detection signal after frequency discrimination amplifies, thus reach the object detecting road traffic parameter.
When vehicle sails surveyed area into, microwave detector detects various traffic data information according to the vehicle reflected signal in each track and adds up the information such as vehicle flow, vehicle occupancy rate, car speed, vehicle classification in every track by some cycles.Microwave vehicle detecting device has following advantage:
(1) any vehicle on road can be detected accurately, comprise from motorcycle to multiaxis, the vehicle of high vehicle body, trailer is surveyed as a car test.
(2) function such as vehicle number, vehicle classification, car speed, lane occupancy ratio that on road, each track is passed through can be detected.
(3) accurate recognition capability, can cross over the vehicle that the obstacle detection such as the antiglare shield of central partition, grove and isolation guardrail are blocked to part.
(4) can round-the-clock Vehicle Detection be carried out, be applicable to any weather, comprise rain, mist, snow, strong wind, hail, dust etc.
(5) detect data and can carry out local autostore, to prevent data from surprisingly losing, after the failure condition such as accident power-off or communication disruption recovers, can historical data be uploaded.
3, video-based vehicle detection forms primarily of outfield video camera, data transmission set and video processor.The traffic image of some for highway directions section is filmed by outfield video camera, then passes to video processor through data transmission set.The image processing hardware of video processor image display on a computer display, then by interactive control software design, arranges virtual coil and thick lines with mouse on traffic image, as speed detector and count detector,
Virtual coil and broad-brush size, quantity can adjust at any time according to the situation of traffic image.When vehicle is by virtual coil and thick lines, will detection signal be produced, through the treatment and analysis of Video processing software, the parameter such as the speed of a motor vehicle, the volume of traffic can be obtained.
Data acquisition system (DAS) can detect traffic data information and comprise:
Time: by the current monitoring point vehicle elapsed time;
Speed: by current monitoring point Vehicle Speed;
Length: by current monitoring point Vehicle length;
Vehicle: by current monitoring point type of vehicle;
Direction: by current monitoring point vehicle heading.
Front-end collection data, also by statistical study, obtain following traffic flow information:
Wagon flow total amount (/ hour): be set by the user in the time interval and vehicle fleet size detected;
Time occupancy: temporally percent measures lane occupancy ratio;
Apart from (second) during car: average time interval between vehicle;
Road speed (kilometer/hour): average speeds in the time interval;
Following distance (rice): the distance between Adjacent vehicles;
Vehicle density: vehicle fleet size in unit distance.
Result after analysis carries out Information issued by equipment such as mobile phone, hand-held mobile terminal, car-mounted terminal, transport information induction display screens.
Claims (1)
1. based on a traffic information collection induction dissemination method for Internet of Things, it is characterized in that: adopt wireless geomagnetism detecting device, microwave vehicle detecting device and video detector composition front end data acquisition system to carry out data acquisition; Described wireless geomagnetism be by crossing each track mouth a geomagnetism detecting device is installed, geomagnetism detecting device by judge vehicle by time cause surrounding magnetic field change and to receiving antenna send radio signal, thus by crossing signals machine enclosure by data back to data center; Described microwave vehicle detecting device is installed in the side vertical rod of road, and by optical transmission device, serial data is back to data center, and all microwave serial datas are converted to network data by serial server by the heart in the data; It is dispose CCTV camera at crossing place that described video detects, and in appointed area, carries out mobile object analysis by analysis software, and the information of vehicles received is back to data center by transmission equipment; Data center by data processing server, to be analyzed by data fusion according to the various sensor informations collected and carries out Information issued, and providing data supporting by the service application that the information after processing is other upper stratas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410104106.6A CN104933879A (en) | 2014-03-19 | 2014-03-19 | Traffic information collecting, inducing and publishing method based on Internet of Things |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410104106.6A CN104933879A (en) | 2014-03-19 | 2014-03-19 | Traffic information collecting, inducing and publishing method based on Internet of Things |
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| CN104933879A true CN104933879A (en) | 2015-09-23 |
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| CN201410104106.6A Pending CN104933879A (en) | 2014-03-19 | 2014-03-19 | Traffic information collecting, inducing and publishing method based on Internet of Things |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106408940A (en) * | 2016-11-02 | 2017-02-15 | 南京慧尔视智能科技有限公司 | Microwave and video data fusion-based traffic detection method and device |
| CN106600980A (en) * | 2017-02-13 | 2017-04-26 | 广州市公路勘察设计有限公司 | Traffic flow detection system |
| CN107978159A (en) * | 2016-10-25 | 2018-05-01 | 华东交通大学 | Vehicle on highway velocity-measuring system |
| CN109741600A (en) * | 2018-12-29 | 2019-05-10 | 南京奥杰智能科技有限公司 | Road incidents detection system |
-
2014
- 2014-03-19 CN CN201410104106.6A patent/CN104933879A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978159A (en) * | 2016-10-25 | 2018-05-01 | 华东交通大学 | Vehicle on highway velocity-measuring system |
| CN106408940A (en) * | 2016-11-02 | 2017-02-15 | 南京慧尔视智能科技有限公司 | Microwave and video data fusion-based traffic detection method and device |
| CN106600980A (en) * | 2017-02-13 | 2017-04-26 | 广州市公路勘察设计有限公司 | Traffic flow detection system |
| CN109741600A (en) * | 2018-12-29 | 2019-05-10 | 南京奥杰智能科技有限公司 | Road incidents detection system |
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Application publication date: 20150923 |
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| WD01 | Invention patent application deemed withdrawn after publication |