CN103914979A - Traffic state sensing system using Bluetooth technique and sensing method thereof - Google Patents
Traffic state sensing system using Bluetooth technique and sensing method thereof Download PDFInfo
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- CN103914979A CN103914979A CN201310003658.3A CN201310003658A CN103914979A CN 103914979 A CN103914979 A CN 103914979A CN 201310003658 A CN201310003658 A CN 201310003658A CN 103914979 A CN103914979 A CN 103914979A
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Abstract
The invention discloses a traffic state sensing system using the Bluetooth technique and a sensing method thereof. The traffic state sensing system comprises vehicle-mounted Bluetooth equipment, road side Bluetooth detecting equipment, a storer, road side sending and receiving equipment and a traffic control center, wherein the vehicle-mounted Bluetooth equipment is connected with the road side Bluetooth detecting equipment, the road side Bluetooth detecting equipment is connected with the storer, the storer is connected with the road side sending and receiving equipment, and the road side sending and receiving equipment is connected with the traffic control center. The traffic control center comprises control center receiving equipment, a database server, a traffic sensing server and an information sending server, wherein the control center receiving equipment is connected with the database server, the database server is connected with the traffic sensing server, and the traffic sensing server is connected with the information sending server. The traffic state sensing system using the Bluetooth technique and the sensing method of the traffic state sensing system can reduce cost and improve collection accuracy.
Description
Technical field
The present invention relates to a kind of traffic behavior sensory perceptual system and cognitive method thereof, relate in particular to a kind of traffic behavior sensory perceptual system and cognitive method thereof that adopts Bluetooth technology.
Background technology
Along with economic fast development, city dweller's automobile pollution increases substantially, cause road traffic demand constantly to increase, urban road traffic congestion has become the bottleneck that hinders social economy's sound development, has had a strong impact on people's normal production and orders of life.Therefore need to make supvr and motorist better to understand real-time traffic situation, thereby take in advance measure of control or change driving path, prevent the aggravation of congestion, alleviate to a certain extent traffic problems.
Current, traffic flow data sampling means mainly comprise the technology such as toroid winding, microwave, ultrasound wave, video, but, these equipment are installed often needs brokenly road construction, the arrangement of facility and maintenance all will affect normal traffic circulation, and the operation of checkout equipment is subject to the impact of weather or visibility and disturbs larger.Comparatively conventional technology also comprises floating car technology at present, according to vehicle location, direction and the velocity information of Floating Car periodic logging in its driving process of equipment vehicle GPS, relevant computation model and the algorithms such as application map match, path culculating are processed, Floating Car position data and urban road are associated on time and space, finally obtain the traffic congestion information such as driving hourage of the Vehicle Speed of road that Floating Car is passed through and road.This kind of method must be disposed the Floating Car of sufficient amount in city, and cost is high like this, and the method is subject to the impact of map match precision larger.
Summary of the invention
Because the above-mentioned defect of prior art, technical matters to be solved by this invention is to provide a kind of traffic behavior sensory perceptual system and cognitive method thereof that adopts Bluetooth technology, and it reduces costs, and improves acquisition precision.
For achieving the above object, the invention provides a kind of traffic behavior sensory perceptual system that adopts Bluetooth technology, the traffic behavior sensory perceptual system of described employing Bluetooth technology comprises vehicle-mounted Bluetooth equipment, trackside bluetooth checkout equipment, storer, trackside sending and receiving devices, traffic control center, vehicle-mounted Bluetooth equipment is connected with trackside bluetooth checkout equipment, trackside bluetooth checkout equipment is connected with storer, storer is connected with trackside sending and receiving devices, trackside sending and receiving devices is connected with traffic control center, traffic control center comprises control center's receiving equipment, database server, traffic aware services device, information sending server, control center's receiving equipment is connected with database server, database server is connected with traffic aware services device, traffic aware services device is connected with information sending server.
As a kind of preferred version, described traffic control center is also connected with information issue plate, mobile phone, TV, networking.
As a kind of preferred version, described trackside bluetooth checkout equipment, storer, trackside sending and receiving devices are all arranged on roadside.
As a kind of preferred version, the quantity of described trackside bluetooth checkout equipment is two, and two trackside bluetooth checkout equipments lay respectively at the both sides, front and back in a section.
As a kind of preferred version, described vehicle-mounted Bluetooth equipment comprises Vehicular bluetooth telephone, bluetooth cellular phone, on-vehicle Bluetooth video display.
The present invention also provides a kind of cognitive method of the traffic behavior sensory perceptual system that adopts Bluetooth technology, described cognitive method adopts the traffic behavior sensory perceptual system of employing Bluetooth technology as above, described cognitive method comprises the following steps: step 1, whether trackside bluetooth checkout equipment detects has vehicle to pass through, in the time having vehicle to pass through, by be connected to receive the identification code of vehicle, the traffic data information such as time, geographic position of passing through with vehicle-mounted Bluetooth equipment; If while not having vehicle to pass through, return and continue to detect; Step 2, the traffic data information that trackside sending and receiving devices adopts GPRS wireless network to send trackside bluetooth checkout equipment arrives traffic control center; Step 3, control center receiving equipment receives the traffic data information that trackside sending and receiving devices sends, and by traffic data communication to database server; Step 4, logical aware services device calculates the information of same vehicle identification code is calculated by the journey time in a section according to time and space according to Space-time Principles, obtain average travel time according to many car journey times in same section, and compare with the predefined normal travel time under this section normal traffic stream mode of preserving in database server in advance, draw the traffic behavior in section; Step 5, the traffic state information that information sending server obtains the processing of traffic aware services device sends to trackside sending and receiving devices, and trackside sending and receiving devices is issued vehicle-mounted Bluetooth equipment by traffic state information again.
As a kind of preferred version, the traffic state information that the information sending server in described step 5 also obtains the processing of traffic aware services device simultaneously sends to information to issue plate, mobile phone, TV, networking.
The invention has the beneficial effects as follows: the present invention adopts traffic behavior sensory perceptual system and the cognitive method thereof of Bluetooth technology to reduce costs, improve acquisition precision, support for the perception of traffic behavior provides basic data.
Brief description of the drawings
Fig. 1 is the theory diagram that the present invention adopts the traffic behavior sensory perceptual system of Bluetooth technology.
Fig. 2 is the process flow diagram that the present invention adopts the cognitive method of the traffic behavior sensory perceptual system of Bluetooth technology.
Embodiment
As shown in Figure 1, a specific embodiment of the present invention, adopts the traffic behavior sensory perceptual system of Bluetooth technology to comprise vehicle-mounted Bluetooth equipment, trackside bluetooth checkout equipment, storer, trackside sending and receiving devices, traffic control center.
Wherein, vehicle-mounted Bluetooth equipment is connected with trackside bluetooth checkout equipment, and trackside bluetooth checkout equipment is connected with storer, and storer is connected with trackside sending and receiving devices, and trackside sending and receiving devices is connected with traffic control center.
Above-mentioned traffic control center comprises control center's receiving equipment, database server, traffic aware services device, information sending server, control center's receiving equipment is connected with database server, database server is connected with traffic aware services device, traffic aware services device is connected with information sending server, and traffic control center also can issue plate, mobile phone, TV, networking with information and be connected.
Vehicle-mounted Bluetooth equipment, trackside bluetooth checkout equipment, storer, trackside sending and receiving devices can form one group of unit, can increase as required the quantity of vehicle-mounted Bluetooth equipment, trackside bluetooth checkout equipment, storer, trackside sending and receiving devices.
Trackside bluetooth checkout equipment, storer, trackside sending and receiving devices can be laid flexibly according to road actual conditions, such as being all arranged on roadside, and can road not produced to damage, do not need the excavation on road surface.
In one embodiment, the quantity of trackside bluetooth checkout equipment is two, and two trackside bluetooth checkout equipments lay respectively at the both sides, front and back in a section.The low price of the cost ratio Floating Car of the devices such as trackside bluetooth checkout equipment, storer, trackside sending and receiving devices, traffic control center is a lot, can reduce costs like this.
The present invention adopts Bluetooth technology and equipment thereof, can improve acquisition precision, supports for the perception of traffic behavior provides basic data.
Particularly, trackside bluetooth checkout equipment is for connecting bluetooth equipment, has reception and the sending function of Bluetooth signal, comprises hardware and corresponding software equipment.
Trackside sending and receiving devices is for bluetooth checkout equipment information is sent to control center, and receives the information that traffic control center sends, can adopt 3G wireless the establishing such as wifi.
Control center's receiving equipment is the information sending for receiving trackside transmitting apparatus, matches with trackside transmitting apparatus.
Because the road section relating to is more, can produce a large amount of data, need private server (traffic aware services device) to process and computing the information gathering.
Information sending server is to send to each distribution apparatus after the information of generation after treatment is encapsulated, packed according to different agreement stipulations.
Particularly, vehicle-mounted Bluetooth equipment can comprise the equipment such as Vehicular bluetooth telephone, bluetooth cellular phone, on-vehicle Bluetooth video display, mainly refers to the equipment that carries out communication by bluetooth.
Trackside bluetooth checkout equipment has reception and the sending function of Bluetooth signal, in the time having vehicle to pass through, by be connected to receive the identification code of vehicle, the traffic data information such as time, geographic position of passing through with vehicle-mounted Bluetooth equipment; When more by same section vehicle, when the traffic data information of trackside bluetooth checkout equipment reception is too much, the traffic data information exchange of reception can be crossed to storer and carry out locality storage, send traffic data information according to " first in first out " principle afterwards.
Trackside sending and receiving devices mainly adopts traffic data information that GPRS wireless network sends trackside bluetooth checkout equipment to traffic control center and receives the traffic state information that traffic control center sends.
Control center receiving equipment receives the traffic data information that trackside sending and receiving devices sends, and by traffic data communication to database server.
Database server stores traffic data information, and traffic data information is sent to traffic aware services device; Traffic aware services device calculates the information of same vehicle identification code is calculated by the journey time in a section according to time and space according to Space-time Principles, obtain average travel time according to many car journey times in same section, and compare with the predefined normal travel time under this section normal traffic stream mode of preserving in database server in advance, thereby determine this section be whether unimpeded, block up, the traffic behavior such as obstruction, can draw the traffic behavior in section.
The traffic state information that information sending server obtains the processing of traffic aware services device sends to trackside sending and receiving devices, and trackside sending and receiving devices is issued vehicle-mounted Bluetooth equipment by traffic state information again.
The traffic state information that information sending server can also obtain the processing of traffic aware services device in conjunction with road network GIS platform sends to information to issue plate, mobile phone, TV, networking etc.
As shown in Figure 2, cognitive method one specific embodiment of the traffic behavior sensory perceptual system of employing Bluetooth technology of the present invention, at least comprises the following steps:
Step 1, whether trackside bluetooth checkout equipment detects has vehicle to pass through, in the time having vehicle to pass through, by be connected to receive the identification code of vehicle, the traffic data information such as time, geographic position of passing through with vehicle-mounted Bluetooth equipment; If while not having vehicle to pass through, return and continue to detect;
Step 2, the traffic data information that trackside sending and receiving devices adopts GPRS wireless network to send trackside bluetooth checkout equipment arrives traffic control center;
Step 3, control center receiving equipment receives the traffic data information that trackside sending and receiving devices sends, and by traffic data communication to database server;
Step 4, logical aware services device calculates the information of same vehicle identification code is calculated by the journey time in a section according to time and space according to Space-time Principles, obtain average travel time according to many car journey times in same section, and compare with the predefined normal travel time under this section normal traffic stream mode of preserving in database server in advance, draw the traffic behavior in section;
Explain by concrete application below: traffic aware services device utilizes the traffic data information of 5 minutes to calculate in real time the traffic behavior of section S1 section to S2 section, S1 section is made as S to the distance of S2 section, Query Database server current time 5 minutes before, by the traffic data information of S1 section and all vehicles of S2 section; Between inquiry at this moment, in section, pass through the vehicle of S1 section and S2 section; Same vehicle is poor by the time intercropping of S1 and S2, be this car by the journey time in this section; By average by the journey time of this section vehicle in all sections at the appointed time, be average travel time T; The journey time threshold value (T1, T2) prestoring in average travel time T and database is compared, thereby determine traffic behavior.Wherein can prefabricated T1=S/40, T2=S/20.If this road section traffic volume state of T<T1 is unobstructed; This road section traffic volume state of T2<=T<=T1 is for blocking up; This road section traffic volume state of T>T2 is for stopping up; Meanwhile, T1, T2 by according to the grade in section as overhead, ground, super expressway, current environment, weather conditions etc., the value of T1, T2 should be different.
Step 5, the traffic state information that information sending server obtains the processing of traffic aware services device sends to trackside sending and receiving devices, and trackside sending and receiving devices is issued vehicle-mounted Bluetooth equipment by traffic state information again.The traffic state information that information sending server can also obtain the processing of traffic aware services device simultaneously sends to information to issue plate, mobile phone, TV, networking etc.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just can design according to the present invention make many modifications and variations without creative work.Therefore, all technician in the art, all should be in by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (7)
1. one kind adopts the traffic behavior sensory perceptual system of Bluetooth technology, it is characterized in that: the traffic behavior sensory perceptual system of described employing Bluetooth technology comprises vehicle-mounted Bluetooth equipment, trackside bluetooth checkout equipment, storer, trackside sending and receiving devices, traffic control center, vehicle-mounted Bluetooth equipment is connected with trackside bluetooth checkout equipment, trackside bluetooth checkout equipment is connected with storer, storer is connected with trackside sending and receiving devices, trackside sending and receiving devices is connected with traffic control center, traffic control center comprises control center's receiving equipment, database server, traffic aware services device, information sending server, control center's receiving equipment is connected with database server, database server is connected with traffic aware services device, traffic aware services device is connected with information sending server.
2. the traffic behavior sensory perceptual system of employing Bluetooth technology as claimed in claim 1, is characterized in that: described traffic control center is also connected with information issue plate, mobile phone, TV, networking.
3. the traffic behavior sensory perceptual system of employing Bluetooth technology as claimed in claim 2, is characterized in that: described trackside bluetooth checkout equipment, storer, trackside sending and receiving devices are all arranged on roadside.
4. the traffic behavior sensory perceptual system of employing Bluetooth technology as claimed in claim 3, is characterized in that: the quantity of described trackside bluetooth checkout equipment is two, and two trackside bluetooth checkout equipments lay respectively at the both sides, front and back in a section.
5. the traffic behavior sensory perceptual system of employing Bluetooth technology as claimed in claim 4, is characterized in that: described vehicle-mounted Bluetooth equipment comprises Vehicular bluetooth telephone, bluetooth cellular phone, on-vehicle Bluetooth video display.
6. one kind adopts the cognitive method of the traffic behavior sensory perceptual system of Bluetooth technology, it is characterized in that: described cognitive method adopts the traffic behavior sensory perceptual system of employing Bluetooth technology claimed in claim 5, described cognitive method comprises the following steps: step 1, whether trackside bluetooth checkout equipment detects has vehicle to pass through, in the time having vehicle to pass through, by be connected to receive the identification code of vehicle, the traffic data information such as time, geographic position of passing through with vehicle-mounted Bluetooth equipment; If while not having vehicle to pass through, return and continue to detect; Step 2, the traffic data information that trackside sending and receiving devices adopts GPRS wireless network to send trackside bluetooth checkout equipment arrives traffic control center; Step 3, control center receiving equipment receives the traffic data information that trackside sending and receiving devices sends, and by traffic data communication to database server; Step 4, logical aware services device calculates the information of same vehicle identification code is calculated by the journey time in a section according to time and space according to Space-time Principles, obtain average travel time according to many car journey times in same section, and compare with the predefined normal travel time under this section normal traffic stream mode of preserving in database server in advance, draw the traffic behavior in section; Step 5, the traffic state information that information sending server obtains the processing of traffic aware services device sends to trackside sending and receiving devices, and trackside sending and receiving devices is issued vehicle-mounted Bluetooth equipment by traffic state information again.
7. the cognitive method of the traffic behavior sensory perceptual system of employing Bluetooth technology as claimed in claim 6, is characterized in that: the traffic state information that the information sending server in described step 5 also obtains the processing of traffic aware services device simultaneously sends to information to issue plate, mobile phone, TV, networking.
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| CN201310003658.3A CN103914979A (en) | 2013-01-06 | 2013-01-06 | Traffic state sensing system using Bluetooth technique and sensing method thereof |
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| CN105389983A (en) * | 2015-11-16 | 2016-03-09 | 北京握奇智能科技有限公司 | Road traffic information collection method and system based on vehicular unit and roadside units |
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| CN105844904A (en) * | 2016-04-22 | 2016-08-10 | 北京航空航天大学 | Vehicle abnormal behavior detection and tracking method based on DSRC |
| CN106355875A (en) * | 2015-07-17 | 2017-01-25 | 深圳市林润实业有限公司 | Novel Bluetooth-based road vehicle detection device and method for operating same |
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| CN112116813A (en) * | 2020-11-20 | 2020-12-22 | 深圳市城市交通规划设计研究中心股份有限公司 | State recognition model establishing method, road traffic state recognition method and road traffic state recognition device |
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Application publication date: 20140709 |