CN102521984A - Method and device for acquiring real-time traffic information of road - Google Patents
Method and device for acquiring real-time traffic information of road Download PDFInfo
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- CN102521984A CN102521984A CN2011104606159A CN201110460615A CN102521984A CN 102521984 A CN102521984 A CN 102521984A CN 2011104606159 A CN2011104606159 A CN 2011104606159A CN 201110460615 A CN201110460615 A CN 201110460615A CN 102521984 A CN102521984 A CN 102521984A
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Abstract
The embodiment of the invention provides a method for acquiring real-time traffic information of a road, relates to the field of intelligent traffic and aims to effectively solve the problem of low coverage rate. The method for acquiring the real-time traffic information of the road comprises the following steps of: acquiring a switching record of at least one mobile terminal in set time, wherein the switching record comprises switching time information and switching point information of the mobile terminal; according to the switching point information in the switching record, determining a running road of the mobile terminal; and according to the switching point information and the switching time information in the switching record, determining the real-time traffic information of the running road. The method for acquiring the real-time traffic information of the road can be used for acquiring the real-time traffic information.
Description
Technical field
The present invention relates to intelligent transportation field, relate in particular to a kind of method and apparatus that obtains the road Real-time Traffic Information.
Background technology
In recent years, along with increasing rapidly of transport need, traffic problems are increasingly serious, and the research of intelligent transportation field has received increasing concern.Intelligent transportation system is the infotech with the advanced person; Data communication transmission, automatic control technology and Computer Processing technology etc. are integrated effectively apply to face traffic control system entirely and set up a kind of on a large scale in, comprehensive that play a role, in real time, comprehensive traffic transportation management system accurately and efficiently.
The main target of intelligent transportation realizes the modernization of entire city traffic and transportation system exactly; And the modern key link of Urban Transportation just provides the Real-time Traffic Information service of road to alleviate traffic congestion; For client's trip provides row line planning and traffic guidance, satisfy the more and more urgent transport information demand of the public.
In the prior art, intelligent transportation system mainly adopts the Floating Car technology to obtain the road Real-time Traffic Information.The ultimate principle of Floating Car technology is: according to the vehicle location of Floating Car periodic logging in its driving process of equipping vehicle-bone global positioning system; Direction and velocity information; Using relevant computation model and algorithm such as map match, path culculating handles; Floating Car position data and urban road are associated on time and space, finally obtain the traffic congestion information such as driving hourage of Vehicle Speed and the road of road that Floating Car is passed through.But present Floating Car is main with taxi, and is low in the road coverage rate in suburb and intercity zone.In addition; The traffic detecting device is an another kind of main mode of obtaining the road Real-time Traffic Information in the prior art; This mode is through being provided with the traffic detecting device in the road both sides, for example, and video detector, infrared detector, ultrasonic detector etc.; The traffic detecting device detect its sailing into, sail out of and the speed of a motor vehicle etc. of traffic conditions, for example vehicle at the scene, thereby obtain the road Real-time Traffic Information.But this mode exists the low problem of coverage rate equally, and the installation and maintenance cost is higher, influenced by weather, magnetic field etc., and measuring accuracy is relatively poor.
Summary of the invention
The fundamental purpose of embodiments of the invention is, a kind of method and apparatus that obtains the road Real-time Traffic Information is provided, and can effectively solve the low problem of coverage rate.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of method of obtaining the road Real-time Traffic Information may further comprise the steps:
Obtain the switching record of at least one portable terminal in the stipulated time, said switching record comprises the information and switching point information switching time of said portable terminal;
According to the switching point information in the said switching record, confirm the travel of said portable terminal;
According to the switching point information in the said switching record and switching time information, confirm the Real-time Traffic Information of said travel.
A kind of device that obtains the road Real-time Traffic Information comprises:
Acquiring unit is used to obtain the switching record of at least one portable terminal in the stipulated time, and said switching record comprises the information and switching point information switching time of said portable terminal;
Road is confirmed the unit, and the switching point information of the said switching record that is used for obtaining according to said acquiring unit is confirmed the travel of said portable terminal;
Transport information is confirmed the unit, and the switching point information and information switching time of the said switching record that is used for obtaining according to said acquiring unit confirm that said road confirms the Real-time Traffic Information of the travel that the unit is definite.
After adopting technique scheme, the method and apparatus that obtains the road Real-time Traffic Information that the embodiment of the invention provides writes down the Real-time Traffic Information that obtains road through the switching of portable terminal; Current, the use of portable terminals such as mobile phone is very general, almost can reach the probability of one one of staff; Therefore, no matter still outskirts of a town and intercity in the city, the distribution of portable terminal is very intensive; Therefore; Switching record through portable terminal obtains the road Real-time Traffic Information, can effectively solve the low problem of coverage rate, thereby obtains more comprehensively road traffic real-time information.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the example schematic diagram of a handover network of the embodiment of the invention;
Fig. 2 is a kind of process flow diagram of the method for obtaining Real-time Traffic Information of the embodiment of the invention;
Fig. 3 is the another kind of process flow diagram of the method for obtaining Real-time Traffic Information of the embodiment of the invention;
Fig. 4 is a kind of structured flowchart of the device that obtains Real-time Traffic Information of the embodiment of the invention;
Fig. 5 is the another kind of structured flowchart of the device that obtains Real-time Traffic Information of the embodiment of the invention;
Fig. 6 is the another kind of structured flowchart of the device that obtains Real-time Traffic Information of the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The embodiment of the invention aims to provide a kind of method and apparatus that obtains the road Real-time Traffic Information, can effectively solve the low problem of coverage rate.
In order to make those skilled in the art better understand the method for obtaining the road Real-time Traffic Information of the embodiment of the invention; At first brief account is carried out in switching (Handover) behavior of portable terminal; Wherein, Said portable terminal can be mobile phone, PCS phone, wireless phone, personal digital assistant equipment such as (PDA, Personal Digital Assistant), and the embodiment of the invention is not done qualification to this.
Portable terminal is in the process that moves; Can keep continual with the base station communicates by letter, if current be the signal strength weakening of portable terminal serving base station, and the signal intensity of neighbor base station is above current base station; Portable terminal can switch to neighbor base station, so that obtain better signal.
In the embodiment of the invention; The time that portable terminal is switched is called switching time; The position that portable terminal is switched is called switching point (Handover Point); The highway section that recurs twice mobile phone switching is for switching the highway section, and switching point continuous on the road is formed road handover network (Handover Network) jointly with the switching highway section.Illustrate, Fig. 1 is a kind of synoptic diagram of road handover network, and is as shown in Figure 1; The black round dot that wherein is labeled as H is represented switching point, and what be labeled as numeral is expressed as sub-district, i.e. base station; Illustrate, switching point H9 representes that portable terminal switches to base station 21 by base station 00; Comprise several switching points on road L1 and the L2 and switch the highway section, for example, L1 comprises switching point H8 to H12, switches highway section H8H9, H9H10, H10H11 and H11H12.
Simply say; The applied principle of the embodiment of the invention does; According to a series of switching point of portable terminal, confirm the mobile route of this portable terminal through map match, and according to switching difference between the switching point of this portable terminal and physical distance; Just can estimate the translational speed of portable terminal, thereby just can get access to the transport information such as travel speed, traffic information and hourage of portable terminal mobile route.
Based on above-mentioned principle, the method for obtaining the road Real-time Traffic Information that the embodiment of the invention provides, as shown in Figure 2, may further comprise the steps:
Wherein, every information switching time of switching in the record has write down the time that said portable terminal switches, and this switches the position that the switching point information in the record has indicated said portable terminal to switch; For example, in one embodiment of the invention, switching point information comprises source base station and target BS information; Can be expressed as H (N-＞M); Mean switching point H, at this switching point H, portable terminal has source base station N to switch to target BS M.
The said stipulated time can be 10 minutes, 30 minutes, 1 hour etc., and the present invention does not do qualification to this, those skilled in the art can be rule of thumb and the actual needs such as accuracy requirement of transport information set the length of said stipulated time arbitrarily.
In the prior art, if switching has taken place portable terminal, service provider will keep the switching record of said portable terminal, and is therefore concrete in this step, can obtain the switching record of portable terminal from service provider.
Step 12 according to the switching point information in the said switching record, is confirmed the travel of said portable terminal.
According to the switching point information in the said switching record, can know the position that said portable terminal switches, thereby can know the mobile route of said portable terminal that road promptly goes.
In one embodiment of the invention, concrete, can confirm the driving path of vehicle through map match according to said switching point information in this step.
In another embodiment of the present invention; Concrete, before step 12, the said method of obtaining the road Real-time Traffic Information also comprises the step of the corresponding relation of setting up switching point and road; Like this; In this step, just can confirm the travel of said portable terminal according to the switching point information in the said switching record and the corresponding relation of switching point and road.The calculated amount of this mode is less, can effectively improve the execution speed of this step.
Step 13, according to the switching point information in the said switching record and switching time information, confirm the Real-time Traffic Information of said travel.
That summarizes says, when portable terminal when a switching point switches, have a switching time; And when switching once more; Have a switching time equally, so just produce a mistiming, and according to the physical distance between two switching points that switch; Just can calculate the translational speed of portable terminal, be the Real-time Traffic Information of said travel thereby just can get access to portable terminal place road.
Wherein, the Real-time Traffic Information of said travel comprises travel speed, traffic information and the hourage etc. of said travel.Wherein, traffic information can draw through travel speed, for example; Suppose that travel speed is slower, be lower than predetermined threshold range, said traffic information can be for blocking up; And travel speed is when being in predetermined threshold range; Said traffic information can be for slowly, and and travel speed when being higher than predetermined threshold range, said traffic information can be for unimpeded.
The switching that the switching of obtaining with step 11 is recorded as a portable terminal is recorded as example; Concrete; In this step, can obtain the switching difference Δ T between per two the adjacent switching points of said portable terminal according to the switching record that obtains; According to the physical distance S between per two adjacent switching points, just can calculate the speed V=S/ Δ T between per two adjacent switching points again.Further; If only comprise two adjacent switching points on the travel of this portable terminal; Just can be with the travel speed of V as this travel, and can obtain the traffic information of this travel according to this travel speed; Also can obtain t=l/V hourage of this travel further according to the total length l of this travel.Certainly, if the physical distance between these two adjacent switching points is approximately equal to the length of this travel, can be with the hourage of Δ T as this travel.
Need to prove that in the embodiment of the invention, adjacent switching point is meant the switching point of twice switching of generation that portable terminal is successively continuous.
The method and apparatus that obtains the road Real-time Traffic Information that the embodiment of the invention provides writes down the Real-time Traffic Information that obtains road through the switching of portable terminal, and is current; The use of portable terminals such as mobile phone is very general, almost can reach the probability of one one of staff, therefore; No matter still outskirts of a town and intercity in the city; The distribution of portable terminal is very intensive, and therefore, the switching record through portable terminal obtains the road Real-time Traffic Information; Can effectively solve the low problem of coverage rate, thereby obtain more comprehensively road traffic real-time information.
Further; In one embodiment of the invention, the switching that step 11 is obtained is recorded as the switching record of a plurality of portable terminals, and every switches record and removes and comprise information and switching point information switching time; Also comprise terminal identification information; At this moment, after step 11, the said method of obtaining the road Real-time Traffic Information also comprises:
According to the terminal identification information in every said switching record; The said switching record that obtains is divided into groups, and after dividing into groups, every group switches record corresponding to same portable terminal; Be about to switch record and divide into groups according to portable terminal, the switching of each portable terminal is recorded as one group.
At this moment, in step 12,, confirm every group of travel that switches the record corresponding mobile terminal, promptly confirm the mobile route of each portable terminal respectively according to every group of switching point information that switches in the record.
Then in step 13,, confirm that said every group switches and write down physical distance and the switching difference of corresponding mobile terminal between the switching point of stipulating on the said travel according to every group of switching point information and information switching time that switches in the record; Then, according to physical distance and the switching difference of said every group of switching record corresponding mobile terminal between the switching point of stipulating on the said travel, confirm that said every group switches the travel speed of record corresponding mobile terminal on said travel; Thereby,, confirm the travel speed of said travel according to the travel speed of said every group of switching record corresponding mobile terminal on said travel.
It is understandable that the switching point of said regulation is not limit, can be provided with arbitrarily.
Concrete, in one embodiment of the invention, the switching point of said regulation is at least one pair of adjacent switching point.At this moment; The said switching according to said every group write down physical distance and the switching difference of corresponding mobile terminal between the switching point of stipulating on the said travel, confirms that the travel speed of said every group of switching record corresponding mobile terminal on said travel comprises:
Switch the record corresponding mobile terminal at the switching difference between the adjacent switching point on the said travel according to said every group; Confirm total switching time of said travel, be the switching difference sum of said portable terminal between the adjacent switching point on the said travel said total switching time;
According to the physical distance of said portable terminal between the adjacent switching point on the said travel; Confirm the total length of said travel, said total length is the physical distance sum of said portable terminal between the adjacent switching point on the said travel;
According to the total switching time of said travel and the total length of said travel, confirm that said every group switches the travel speed of record corresponding mobile terminal on said travel, said travel speed is the merchant of said total length and said total switching time;
Perhaps; Alternative; Can also switch according to said every group and write down corresponding mobile terminal, confirm the travel speed of respectively switching highway section of said portable terminal on said travel at physical distance between the adjacent switching point and switching difference on the said travel;
According to the travel speed of switching highway section of said every group of switching record corresponding mobile terminal on said travel, confirm that said every group switches the travel speed of record corresponding mobile terminal on said travel.
Illustrate, in the situation of the corresponding different travel of each portable terminal of said a plurality of portable terminals:
For a travel; If only have two adjacent switching points on this road; Can obtain the switching difference Δ T of two adjacent switching points of this portable terminal according to the mobile terminal affiliated switching record group on this travel, again according to the physical distance S between these two adjacent switching points; Calculate the travel speed V=S/ Δ T of this portable terminal, and V is confirmed as the travel speed of this road.
For a travel; And if have two above switching points on this road, per two adjacent switching points are formed a switching highway section, promptly have several on this road to switch the highway section; At this moment; Can obtain the switching difference between per two adjacent switching points according to the mobile terminal affiliated switching record group on this travel, and according to the switching difference between per two adjacent switching points; Confirm total switching time of this travel, be the switching difference sum between the said adjacent switching point said total switching time; For example, supposing has 4 switching points on the road, portable terminal successively from these 4 switching points through and switch, the switching difference of per two adjacent switching points is respectively t1, t2 and t3, then total switching time Tz=t1+t2+t3.Then; According to the physical distance between per two adjacent switching points, confirm the length of said travel, length is the physical distance sum between the said adjacent switching point; On the same above-mentioned road 4 switching points being arranged is example, and the switching distance between per two adjacent switching points is for being respectively; L1, l2 and l3, the length L z=l1+l2+l3 of said travel then then calculates the travel speed V=Lz/Tz of this road.Certainly, also can be with the actual physics length L s of this road length as said travel, the travel speed of calculating this road is V=Ls/Tz.In addition; Can also calculate the travel speed of said portable terminal, then according to said portable terminal in switching difference and the physical distance between per two adjacent switching points on this road in the switching highway section of these two adjacent switching point correspondences; According to the travel speed of respectively switching highway section of said portable terminal at this road; Employing is asked average or method such as Δ convergence, obtains one and goes speed as the travel speed of said portable terminal, the i.e. travel speed of this road.
Need to prove that in the embodiment of the invention, V converges to example with Δ; Δ convergence mode is meant, a preset value and Δ V value are set, if the difference of speed V and preset value is greater than Δ V value; Then be filtered, other filtering rule also can be set certainly, the present invention does not do qualification to this.
Concrete, in the situation of the corresponding identical travel of the part portable terminal of said a plurality of portable terminals:
In this case; Can confirm at first that said every group switches the travel speed of record corresponding mobile terminal on its travel; Then according to travel; Each group is switched the travel speed of record corresponding mobile terminal on each travel divide into groups, after dividing into groups, the travel speed in every group is corresponding to same travel; Then according to every pairing every group of travel speed of said travel; Confirm the travel speed of this travel; Concrete, can through Δ convergence mode in every pairing every group of travel speed of said travel, confirm the travel speed of this travel; Perhaps, can also confirm the travel speed of this travel through every pairing every group of travel speed of said travel being got the mode of average.Certainly, can also adopt earlier and restrain, get the mode of average again, confirm the travel speed of this travel.
Illustrate, for a travel, if only have two adjacent switching points on this road; Can be according to a plurality of mobile terminal affiliated switching record group on this travel; Obtain the switching difference Δ T of each portable terminal two adjacent switching points on this travel,, calculate the travel speed V=S/ Δ T of each portable terminal on this road again according to the physical distance S between these two adjacent switching points; Then; According to the travel speed of compiling each portable terminal on this road, adopt methods such as asking average or Δ convergence, confirm the travel speed of said travel.
For a travel; And if have two above switching points on this road; Promptly have several on this road and switch the highway section; Can be at first to confirm that with the identical mode of situation of the corresponding different travel of each portable terminals of above-mentioned said a plurality of portable terminals said every group switches the travel speed of record corresponding mobile terminal on this travel, then, according to the travel speed of compiling each portable terminal on this road; Methods such as average or Δ convergence are asked in employing, confirm the travel speed of said travel.Certainly, in one embodiment of the invention, can at first said every group of switching write down the travel speed of switching highway section of corresponding mobile terminal on this travel; Then; Compile each portable terminal and switch the travel speed in highway section, adopt methods such as asking average or Δ convergence, confirm that this travel respectively switches the travel speed in highway section at each; And respectively switch the travel speed in highway section according to this travel, confirm the transport information such as travel speed of this road.
In order to make those skilled in the art better understand technical scheme of the present invention; Below be that mobile phone is an example with the portable terminal; With a specific embodiment method of obtaining Real-time Traffic Information that the embodiment of the invention provides is further specified, in conjunction with Fig. 1 and Fig. 3, present embodiment comprises:
Step 201 is gathered the mobile phone switching point on each road in the appointed area, writes down the switching point information of each switching point.
In the present embodiment, represent road, represent the mobile phone switching point with H with L; Represent source base station with N, represent target BS with M, switching point information is expressed as the pair of sequences value from the source base station to the target BS; Be recorded as H (N-＞M), for example, like the H3 among Fig. 1; Switching point information is recorded as H3 (40＞31), is illustrated in switching point H3, and mobile phone 40 switches to base station 31 from the base station.
Present embodiment is not done qualification to said appointed area, can be arbitrary region.
Need to prove, in this step, can be artificial the collection, also can be to gather automatically according to the switching behavior of mobile phone, and present embodiment is not done qualification to this.
Step 202 is set up the relation between road and the switching point, the set of the corresponding switching point sequence of each road.
In the present embodiment, for to be the characteristic sequence A of road, the set of all characteristic sequences is called S in the said appointed area, illustrates with the sets definition of this switching point sequence; The characteristic sequence A1 of L1 is { H8, H9, H10, H11 among Fig. 1; H12}, the characteristic sequence A2 of L2 is { H1, H2, H3; H4, H5, H6, H7}.
Step 203 is obtained many switching records in the certain hour from service provider.
Wherein, said certain hour is not done qualification, can be half an hour, and one hour, two hours etc.; Comprise mobile phone ID (terminal identification information) in every said switching record, and switching point information H (N-＞M), time stamp T IME (information switching time).In the present embodiment, represent to switch record, R={ID then, TIME, H} with R.
As shown in Figure 3, the switching record sheet that obtains in this step is shown R1, R2...Rn.
Step 204 is divided into groups to the switching of obtaining record according to mobile phone ID, makes the back of dividing into groups switch record corresponding to same mobile phone for every group, and after will dividing into groups every group switch write down according to by timestamp with by the rank order after arriving first.
As shown in Figure 3, after the grouping, the switching of mobile phone n record can be expressed as:
IDn＝{Rn1，Rn2......}
The corresponding ordered set of switching record of each mobile phone ID of ordering back, present embodiment is referred to as switching track T, each switching track is a corresponding switching point set H1n, H2n...
Step 205, the switching point in S among the T of the mobile phone of each ID of coupling is gathered, and obtains the pairing road sequence of user of each ID mobile phone.
For example, the set of switching point among the T of mobile phone X for H8, H9, H10, H11, H12}, after overmatching, mobile phone X road corresponding sequence comprises L1.
As shown in Figure 3, after the coupling, the road sequence of mobile phone n can be expressed as:
IDn＝{L1n，L2n......}
Obtain cellphone subscriber's road corresponding sequence of each ID, in fact just obtained each cellphone subscriber's travel.
Step 206, calculate respectively each mobile phone on its road corresponding sequence travel speed V and hourage T.
Concrete computing method can be participated in preamble and described, and repeat no more here.
As shown in Figure 3, after the calculating, the result of calculation that mobile phone n is corresponding can be expressed as:
IDn={L1n (V, T), L2n (V, T) ..., wherein, 1-n representes the different travels that mobile phone n is corresponding,
Step 207 is divided into groups result of calculation according to road, after dividing into groups, every set of calculated result is same pairing travel speed of each mobile phone of road and hourage.
As shown in Figure 3, after the calculating, the result of calculation that road d is corresponding can be expressed as:
Ld={ (Vd1, Td1); (Vd2, Td2) ... (Vdn, Tdn) }, wherein; 1-n representes that this road d goes up the travel speed and the hourage of different mobile terminal correspondence, and promptly each is to (V, the T) result of calculation in step 206 corresponding to a mobile phone terminal on this road LD.
Step 208; Cross every road through Δ T convergent method and filter corresponding travel speed and the abnormal data in hourage; Then, adopt, obtain Real-time Traffic Informations such as corresponding travel speed of every road and hourage filtering the method that the remaining data in back are averaged.
As shown in Figure 3, this step obtains the travel speed and Ld=hourage (V, T) of each bar road.
Corresponding with preceding method, the embodiment of the invention also provides a kind of device that obtains the road Real-time Traffic Information, like Fig. 4, comprising:
Acquiring unit 100 is used to obtain the switching record of at least one portable terminal in the stipulated time, and said switching record comprises the information and switching point information switching time of said portable terminal;
Road is confirmed unit 101, and the switching point information of the said switching record that is used for obtaining according to acquiring unit 100 is confirmed the travel of said portable terminal;
Transport information is confirmed unit 102, and the switching point information and information switching time of the said switching record that is used for obtaining according to acquiring unit 100 confirm that said road confirms the Real-time Traffic Information of the travel that the unit is definite.
The device that obtains the road Real-time Traffic Information that the embodiment of the invention provides writes down the Real-time Traffic Information that obtains road through the switching of portable terminal, and is current; The use of portable terminals such as mobile phone is very general, almost can reach the probability of one one of staff, therefore; No matter still outskirts of a town and intercity in the city; The distribution of portable terminal is very intensive, and therefore, the switching record through portable terminal obtains the road Real-time Traffic Information; Can effectively solve the low problem of coverage rate, thereby obtain more comprehensively road traffic real-time information.
Further, as shown in Figure 5 in one embodiment of the invention, said device also comprises:
Set up unit 103, be used to set up the corresponding relation of switching point and road;
At this moment, the switching point information that road is confirmed the switching record that unit 101 specifically is used for obtaining according to acquiring unit 100 with set up the switching point set up unit 103 and the corresponding relation of road, confirm the travel of said portable terminal.
Further, as shown in Figure 6, in one embodiment of the invention:
Said switching record also comprises said at least one terminal identifications of mobile terminals information;
Said device also comprises:
Grouped element 104; Be used for after acquiring unit 100 obtains the switching record of at least one portable terminal in the stipulated time; According to the terminal identification information in every said switching record; The said switching record that obtains is divided into groups, and after dividing into groups, every group switches record corresponding to same portable terminal;
Then road confirms that unit 101 specifically is used for: every group of switching point information that switches record after dividing into groups according to grouped element 104, confirm every group of travel that switches the record corresponding mobile terminal;
And transport information confirms that unit 102 specifically is used for:
Every group of switching point information and information switching time that switches in the record after dividing into groups according to grouped element 104 confirms that said every group switches and write down physical distance and the switching difference of corresponding mobile terminal between the switching point of stipulating on the said travel;
According to physical distance and the switching difference of said every group of switching record corresponding mobile terminal between the switching point of stipulating on the said travel, confirm that said every group switches the travel speed of record corresponding mobile terminal on said travel;
According to the travel speed of said every group of switching record corresponding mobile terminal on said travel, confirm the travel speed of said travel.
In one embodiment of the invention, the switching point of said regulation is adjacent switching point;
At this moment, transport information confirms that unit 102 specifically can be used for:
Switch the record corresponding mobile terminal at the switching difference between the adjacent switching point on the said travel according to said every group; Confirm total switching time of said travel, be the switching difference sum of said portable terminal between the adjacent switching point on the said travel said total switching time;
According to the physical distance of said portable terminal between the adjacent switching point on the said travel; Confirm the total length of said travel, said total length is the physical distance sum of said portable terminal between the adjacent switching point on the said travel;
According to the total switching time of said travel and the total length of said travel, confirm that said every group switches the travel speed of record corresponding mobile terminal on said travel, said travel speed is the merchant of said total length and said total switching time;
Perhaps, alternative, transport information confirms that unit 102 specifically can be used for:
At physical distance between the adjacent switching point and switching difference on the said travel, confirm the travel speed of respectively switching highway section of said portable terminal on said travel according to said every group of switching record corresponding mobile terminal;
According to the travel speed of switching highway section of said every group of switching record corresponding mobile terminal on said travel, confirm that said every group switches the travel speed of record corresponding mobile terminal on said travel.Concrete, transport information confirms that unit 102 can switch the travel speed of record corresponding mobile terminal on each travel to each group and divide into groups at first according to travel, and after dividing into groups, the travel speed in every group is corresponding to same travel; Then, according to every pairing every group of travel speed of said travel, confirm the travel speed of this travel.Transport information confirms that unit 102 can pass through Δ convergence mode in every pairing every group of travel speed of said travel, confirm the travel speed of this travel; Can also confirm the travel speed of this travel through to every pairing every group of travel speed of said travel or get the mode of average hourage.Certainly, can also adopt earlier and restrain, get the mode of average again, confirm the travel speed of this travel.
One of ordinary skill in the art will appreciate that: all or part of flow process that realizes said method embodiment can be accomplished through the relevant hardware of computer program instructions; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of said claim.
Claims (12)
1. a method of obtaining the road Real-time Traffic Information is characterized in that, comprising:
Obtain the switching record of at least one portable terminal in the stipulated time, said switching record comprises the information and switching point information switching time of said portable terminal;
According to the switching point information in the said switching record, confirm the travel of said portable terminal;
According to the switching point information in the said switching record and switching time information, confirm the Real-time Traffic Information of said travel.
2. method according to claim 1 is characterized in that,
Before said switching of obtaining at least one portable terminal in the stipulated time was write down, said method also comprised:
Set up the corresponding relation of switching point and road;
Said according to the switching point information in the said switching record, confirm that the travel of said portable terminal comprises:
According to the switching point information in the said switching record and the corresponding relation of described switching point and road, confirm the travel of said portable terminal.
3. method according to claim 1 and 2 is characterized in that,
Said switching record also comprises said at least one terminal identifications of mobile terminals information;
After said switching of obtaining at least one portable terminal in the stipulated time was write down, said method also comprised:
According to the terminal identification information in every said switching record, the said switching record that obtains is divided into groups, after dividing into groups, every group switches record corresponding to same portable terminal;
Said according to the switching point information in the said switching record, confirm that the travel of said portable terminal comprises:
According to every group of switching point information that switches in the record, confirm every group of travel that switches the record corresponding mobile terminal;
Said according to the switching point information in the said switching record and switching time information, confirm that the Real-time Traffic Information of said travel comprises:
According to every group of switching point information and information switching time that switches in the record, confirm that said every group switches and write down physical distance and the switching difference of corresponding mobile terminal between the switching point of stipulating on the said travel;
According to physical distance and the switching difference of said every group of switching record corresponding mobile terminal between the switching point of stipulating on the said travel, confirm that said every group switches the travel speed of record corresponding mobile terminal on said travel;
According to the travel speed of said every group of switching record corresponding mobile terminal on said travel, confirm the travel speed of said travel.
4. method according to claim 3 is characterized in that,
The switching point of said regulation is adjacent switching point;
The said switching according to said every group write down physical distance and the switching difference of corresponding mobile terminal between the switching point of stipulating on the said travel, confirms that the travel speed of said every group of switching record corresponding mobile terminal on said travel comprises:
Switch the record corresponding mobile terminal at the switching difference between the adjacent switching point on the said travel according to said every group; Confirm total switching time of said travel, be the switching difference sum of said portable terminal between the adjacent switching point on the said travel said total switching time;
According to the physical distance of said portable terminal between the adjacent switching point on the said travel; Confirm the total length of said travel, said total length is the physical distance sum of said portable terminal between the adjacent switching point on the said travel;
According to the total switching time of said travel and the total length of said travel, confirm that said every group switches the travel speed of record corresponding mobile terminal on said travel, said travel speed is the merchant of said total length and said total switching time;
Perhaps,
At physical distance between the adjacent switching point and switching difference on the said travel, confirm the travel speed of respectively switching highway section of said portable terminal on said travel according to said every group of switching record corresponding mobile terminal;
According to the travel speed of switching highway section of said every group of switching record corresponding mobile terminal on said travel, confirm that said every group switches the travel speed of record corresponding mobile terminal on said travel.
5. method according to claim 3; It is characterized in that; The said switching according to said every group write down the travel speed of switching highway section of corresponding mobile terminal on said travel, confirms that the travel speed of said every group of switching record corresponding mobile terminal on said travel comprises:
According to travel, each group is switched the travel speed of record corresponding mobile terminal on each travel divide into groups, after dividing into groups, the travel speed in every group is corresponding to same travel;
According to every pairing every group of travel speed of said travel, confirm the travel speed of this travel.
6. method according to claim 5 is characterized in that, and is said according to every pairing every group of travel speed of said travel, confirms that the travel speed of this travel comprises:
In every pairing every group of travel speed of said travel, confirm the travel speed of this travel through Δ convergence mode;
Perhaps
Through every pairing every group of travel speed of said travel being got the mode of average, confirm the travel speed of this travel.
7. a device that obtains the road Real-time Traffic Information is characterized in that, comprising:
Acquiring unit is used to obtain the switching record of at least one portable terminal in the stipulated time, and said switching record comprises the information and switching point information switching time of said portable terminal;
Road is confirmed the unit, and the switching point information of the said switching record that is used for obtaining according to said acquiring unit is confirmed the travel of said portable terminal;
Transport information is confirmed the unit, and the switching point information and information switching time of the said switching record that is used for obtaining according to said acquiring unit confirm that said road confirms the Real-time Traffic Information of the travel that the unit is definite.
8. device according to claim 7 is characterized in that, said device also comprises:
Set up the unit, be used to set up the corresponding relation of switching point and road;
Said road confirms that the switching point information and said of the switching record that the unit specifically is used for obtaining according to said acquiring unit sets up the switching point set up the unit and the corresponding relation of road, confirms the travel of said portable terminal.
9. according to claim 7 or 8 described devices, it is characterized in that,
Said switching record also comprises said at least one terminal identifications of mobile terminals information;
Said device also comprises:
Grouped element; Be used for after said acquiring unit obtains the switching record of at least one portable terminal in the stipulated time; According to the terminal identification information in every said switching record; The said switching record that obtains is divided into groups, and after dividing into groups, every group switches record corresponding to same portable terminal;
Said road confirms that the unit specifically is used for: every group of switching point information that switches record after dividing into groups according to said grouped element, confirm every group of travel that switches the record corresponding mobile terminal;
Said transport information confirms that the unit specifically is used for:
Every group of switching point information and information switching time that switches in the record after dividing into groups according to said grouped element confirms that said every group switches and write down physical distance and the switching difference of corresponding mobile terminal between the switching point of stipulating on the said travel;
According to physical distance and the switching difference of said every group of switching record corresponding mobile terminal between the switching point of stipulating on the said travel, confirm that said every group switches the travel speed of record corresponding mobile terminal on said travel;
According to the travel speed of said every group of switching record corresponding mobile terminal on said travel, confirm the travel speed of said travel.
10. device according to claim 9 is characterized in that,
The switching point of said regulation is adjacent switching point;
Said transport information confirms that the unit specifically is used for:
Switch the record corresponding mobile terminal at the switching difference between the adjacent switching point on the said travel according to said every group; Confirm total switching time of said travel, be the switching difference sum of said portable terminal between the adjacent switching point on the said travel said total switching time;
According to the physical distance of said portable terminal between the adjacent switching point on the said travel; Confirm the total length of said travel, said total length is the physical distance sum of said portable terminal between the adjacent switching point on the said travel;
According to the total switching time of said travel and the total length of said travel, confirm that said every group switches the travel speed of record corresponding mobile terminal on said travel, said travel speed is the merchant of said total length and said total switching time;
Perhaps,
At physical distance between the adjacent switching point and switching difference on the said travel, confirm the travel speed of respectively switching highway section of said portable terminal on said travel according to said every group of switching record corresponding mobile terminal;
According to the travel speed of switching highway section of said every group of switching record corresponding mobile terminal on said travel, confirm that said every group switches the travel speed of record corresponding mobile terminal on said travel.
11. device according to claim 9 is characterized in that,
Said transport information confirms that the unit specifically is used for:
According to travel, each group is switched the travel speed of record corresponding mobile terminal on each travel divide into groups, after dividing into groups, the travel speed in every group is corresponding to same travel;
According to every pairing every group of travel speed of said travel, confirm the travel speed of this travel.
12. device according to claim 11 is characterized in that, said transport information confirms that the unit specifically is used for:
In every pairing every group of travel speed of said travel, confirm the travel speed of this travel through Δ convergence mode;
Perhaps
Through to every pairing every group of travel speed of said travel or get the mode of average hourage, confirm the travel speed of this travel.
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Application publication date: 20120627 |