CN102682616A

CN102682616A - Method and device for issuing traffic information of radio data broadcast system

Info

Publication number: CN102682616A
Application number: CN2011100638574A
Authority: CN
Inventors: 李中男; 张文斗; 宋涛
Original assignee: Autonavi Software Co Ltd
Current assignee: Alibaba China Co Ltd
Priority date: 2011-03-16
Filing date: 2011-03-16
Publication date: 2012-09-19
Anticipated expiration: 2031-03-16
Also published as: CN102682616B

Abstract

The invention discloses a method and a device for issuing traffic information of a radio data broadcast system and relates to the field of navigation. The method comprises the following steps: considering each estimation index of road condition in balance; calculating an important level weight value of traffic information of each road of which the traffic state is crowded or amble; ordering the traffic information of each road according to the important level weight value; and issuing the traffic information through an RDS (radio data broadcast system) issuing channel according to an order of the important level weight values from high to low. The device comprises a weight value calculation module and an order issuing module. According to the embodiment of the invention, each estimation index of the road condition can be comprehensively considered in balance, so that the quantity of effective data in the issued data of the RDS is improved, namely the validity of the issued data of the RDS is improved, and the issued information is enabled to be more accurate and reasonable.

Description

Wireless Data Broadcasting System transport information dissemination method and equipment

Technical field

The present invention relates to navigation field, particularly relate to a kind of wireless Data Broadcasting System transport information dissemination method and equipment.

Background technology

RDS (Radios Data System; Wireless Data Broadcasting System) be in the european norm by the Radio Data System of European Broadcasting Union (EBU) formulation in 1984; The principal feature of RDS urban transportation information broadcast is to utilize existing fm resources; Realize through inserting numerical code in the broadcast singal, after radio detection and these numerical codes of demodulation, just function corresponding can be provided.

TMC (Traffic Message Channel, Traffic Message Channel) is a digital encoding system.TMC can produce continuous transport information stream, like traffic congestion or accident, can report the site of an accident, time and result etc.Information has comprised the traffic in certain territorial scope.TMC information and digital map navigation are combined, improved the accuracy of automobile navigation the place ahead road condition predicting.

RDS-TMC is one of application of adopting the issue of RDS technology realization information.Transport information according to the TMC standard code, adopts RDS issue passage to issue before broadcasting.Car-mounted terminal equipment can receive this yard type information, and can select the implementation of information, like text, simple graph and language etc.

In the prior art, need consider the real-time of transport information issue, when adopting RDS technology distributing traffic information, once current Real-time Traffic Information of interval acquiring and issue at regular intervals usually.Because the RDS issue passage unit interval is sent TMC incident limited amount,, and can not full detail all be released in the limited time so every batch of transport information can only be issued wherein part usually.Therefore, for significant data can be published as far as possible, before current transport information issue; Can sort according to important level to transport information, concrete, at first; Current transport information is sorted according to category of roads, in each category of roads, sort by event class again.In the time interval of current transport information issue, issue by the important level clooating sequence.That is to say that the data that category of roads is high can preferentially be issued, for the data of same link grade, can the high data of preferential issue event class.

In research and practice process to prior art; The inventor finds that there is following problem in prior art: in the prior art; When utilizing RDS issue passage issue TMC data, be category of roads according to what much more more to consider in the important level ordering, that is to say distributing data; Usually can as far as possible that category of roads is high transport information release, the possibility that is published for the low transport information of category of roads just seldom.Like this; Can cause some very serious road information that blocks up to be published owing to category of roads is low slightly; And maybe congestion in the actual information releasing be not very serious, and only be because category of roads is high, make that the data bulk that important level is high in the RDS distributing data is less relatively; The TMC incident validity that is the issue of RDS issue passage is poor, and it is not accurate enough reasonable to release news.

Summary of the invention

The embodiment of the invention provides a kind of wireless Data Broadcasting System transport information dissemination method and equipment, to improve effective traffic events quantity of RDS issue passage issue, makes information releasing more accurately rationally.

For realizing above-mentioned purpose, the embodiment of the invention provides following scheme:

A kind of wireless Data Broadcasting System transport information dissemination method comprises:

Balanced consider each item condition of road surface evaluation index, calculate traffic behavior and be the important level weighted value of each Traffic Information that blocks up or walk or drive slowly;

Said each Traffic Information is sorted by said important level weighted value, issue by important level weighted value order from high to low through RDS wireless Data Broadcasting System issue passage.

A kind of wireless Data Broadcasting System transport information distribution apparatus comprises:

The weighted value computing module is used for balanced each item condition of road surface evaluation index of considering, calculates traffic behavior and be the important level weighted value of each Traffic Information that blocks up or walk or drive slowly;

The ordering release module is used for said each Traffic Information is sorted by said important level weighted value, issues by important level weighted value order from high to low through RDS wireless Data Broadcasting System issue passage.

According to specific embodiment provided by the invention, following technique effect is disclosed:

In the embodiment of the invention; When utilizing RDS issue passage issue TMC data, balancedly consider that each item condition of road surface evaluation index calculates the important level weighted value that traffic behavior is each Traffic Information of blocking up or walking or drive slowly, and said each Traffic Information is sorted and issue by the important level weighted value; When treating distributing data like this and sorting; Be not a certain or a few indexs that only stress to consider in the transport information, but can be, thereby improved the quantity of valid data in the RDS distributing data the considering of each item condition of road surface evaluation index aggregative equilibrium; Promptly improved the validity of RDS distributing data, made to release news more accurately rationally.

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, can also obtain other accompanying drawing according to these accompanying drawings.

A kind of RDS transport information dissemination method process flow diagram that Fig. 1 provides for the embodiment of the invention;

The another kind of RDS transport information dissemination method process flow diagram that Fig. 2 provides for the embodiment of the invention;

The another kind of RDS transport information dissemination method process flow diagram that Fig. 3 provides for the embodiment of the invention;

The another kind of RDS transport information dissemination method process flow diagram that Fig. 4 provides for the embodiment of the invention;

Fig. 5 is the present invention's a kind of concrete application example method flow diagram embodiment illustrated in fig. 4;

A kind of RDS transport information distribution apparatus structured flowchart that Fig. 6 provides for the embodiment of the invention;

The another kind of RDS transport information distribution apparatus structured flowchart that Fig. 7 provides for the embodiment of the invention;

The another kind of RDS transport information distribution apparatus structured flowchart that Fig. 8 provides for the embodiment of the invention;

Fig. 9 is a kind of structured flowchart of middle ordering release module embodiment illustrated in fig. 8;

Figure 10 is the another kind of structured flowchart of middle ordering release module embodiment illustrated in fig. 8;

Figure 11 is the another kind of structured flowchart of middle ordering release module embodiment illustrated in fig. 8.

Embodiment

For purpose, the feature and advantage that make the embodiment of the invention can be more obviously understandable, the present invention is done further detailed explanation below in conjunction with accompanying drawing and embodiment.

Referring to Fig. 1, the embodiment of the invention provides a kind of wireless Data Broadcasting System transport information dissemination method, comprises the steps:

S101: balanced consider each item condition of road surface evaluation index, calculate traffic behavior and be the important level weighted value of each Traffic Information that blocks up or walk or drive slowly.

In the embodiment of the invention, each item condition of road surface evaluation index can comprise category of roads, event class, through at least two indexs such as times, that is to say; In the embodiment of the invention; When the important level weighted value to each Traffic Information calculates, need balanced each item condition of road surface evaluation index of considering, the situation of above-mentioned each index of embodiment that the important level weighted value of feasible each Traffic Information that calculates can be balanced; When issue; Issue from high to low according to the ordering of this important level weighted value, like this, make it possible to preferentially issue of paramount importance transport information behind above-mentioned each index equilibrium; Make information releasing more accurately rationally; Thereby avoid owing to stress to consider wherein a certain or a few indexs, the data of preferential issue possibly not be to be current most important data when causing distributing data, and the user is misled.

In concrete the realization, each item condition of road surface evaluation index can comprise category of roads and event class; Also can comprise category of roads, event class, pass through the time; Can also comprise more index.Need to prove that all adopt category of roads, event class among present embodiment and other each embodiment, describe as each item condition of road surface evaluation index through the time, other situation principle is identical, repeats no more.

Need to prove; Because the RDS issue passage unit interval is sent TMC incident limited amount; When utilizing RDS issue passage to issue current Real-time Traffic Information, the issuing traffic state is in the transport information of blocking up or walking or drive slowly usually, so that the user is effectively navigated; Navigate for the user that to be worth not be very big and be in unimpeded transport information, do not do issue usually for current traffic condition.Therefore preferred; When above-mentioned balanced consideration each item condition of road surface evaluation index calculates the important level weighted value of each Traffic Information; Need be that the data filter that passes unimpeded falls with current traffic behavior; Do not do issue, promptly balancedly consider each item condition of road surface evaluation index, calculate traffic behavior and be the important level weighted value of each Traffic Information that blocks up or walk or drive slowly.

Also need to prove in addition; Balanced consideration each item condition of road surface evaluation index; The method of calculating the important level weighted value of each Traffic Information has a variety of; Such as multiplying each other to each item condition of road surface evaluation index of each road or method such as addition, calculate the important level weighted value of each Traffic Information.Those skilled in the art can be according to the factor such as design custom and application demand of oneself in practical application; Adopt different computing method; As long as can realize each item condition of road surface evaluation index is carried out the consideration of aggregative equilibrium; Get final product but not only stress wherein a certain or a few, the embodiment of the invention does not limit this.

Below, introduce in detail and balancedly consider category of roads, event class and through the time, calculate traffic behavior and be a kind of implementation of the important level weighted value of each Traffic Information that blocks up or walk or drive slowly:

Obtain category of roads weights that traffic behavior is each road of blocking up or walking or drive slowly, event class weights and through the time weights according to current each Traffic Information;

Calculate said category of roads weights, event class weights and the product through the time weights again, obtain traffic behavior and be the important level weighted value of each Traffic Information of blocking up or walking or drive slowly.

Wherein, obtain category of roads weights that traffic behavior is each road of blocking up or walking or drive slowly, event class weights according to current each Traffic Information and the step through the time weights specifically comprises:

Be the time of the passing through inquiry weights allocation list in category of roads, current event grade and the current highway section that blocks up or walk or drive slowly of each road of blocking up or walking or drive slowly according to traffic behavior respectively, obtain traffic behavior and be the category of roads weights, event class weights of each road of blocking up or walking or drive slowly and through the time weights.Concrete; Be provided with each category of roads road corresponding grade weights, event class weights in the above-mentioned weights allocation list in advance and pass through the time weights; Wherein, The event class weights are specially the grade weights of each non-unimpeded incident, such as the event class weights that block up, jogging event class weights, other is like non-unimpeded event class weights such as construction, traffic hazards.Be specially the time of the passing through weights in the highway section that blocks up, the time of the passing through weights in jogging highway section through the time weights.It is thus clear that; In the embodiment of the invention; According to traffic behavior be the time of the passing through inquiry weights allocation list in category of roads, current event grade and the current highway section that blocks up or walk or drive slowly of each road of blocking up or walking or drive slowly obtain be the relevant weights that traffic behavior is each road of blocking up or walking or drive slowly, in this step, can realize with state being that unimpeded road information filters out.

That is to say; Consider category of roads, event class and calculate through the time in the step of important level weighted value that traffic behavior is each Traffic Information of blocking up or walking or drive slowly in equilibrium; Be that the data filter that passes unimpeded falls with current traffic behavior simultaneously, what obtain is the important level weighted value that traffic behavior is each Traffic Information of blocking up or walking or drive slowly.

Wherein, considering category of roads, event class and calculate through the time in the step of important level weighted value of each Traffic Information in equilibrium, is that the concrete implementation that the data filter that passes unimpeded falls can be with current traffic behavior simultaneously:

According to current each Traffic Information; Road is judged one by one respectively; If the traffic behavior of current road is for blocking up or walking or drive slowly; Then, obtain category of roads weights, the event class weights of this road and pass through the time weights, calculate the important level weighted value of this road according to the current state inquiry weights allocation list of this road; If the traffic behavior of current road is unimpeded, then filter out this road information, carry out the calculating of follow-up road important level weighted value again, by that analogy.Final result obtains the important level weighted value that traffic behavior is the road that blocks up or walk or drive slowly; Like this; Just can in subsequent step, sort, and issue the current Traffic Information that blocks up or walk or drive slowly from high to low by the important level weighted value to the important level weighted value that is in the Traffic Information that blocks up or walk or drive slowly; Improve the validity of RDS distributing data, the user is more effectively navigated.

In the above-mentioned steps, the time method of passing through of calculating the highway section that blocks up or walk or drive slowly is specially:

Calculating block up or walk or drive slowly each data cell in the highway section distance and present speed ratio with the passing through the time of, the highway section that blocked up or walk or drive slowly; Wherein, the said highway section that blocks up or walk or drive slowly is the data cell merging of blocking up or being jogging by an equidirectional adjacent traffic behavior of road respectively.

That is to say, on a road is equidirectional, adjacent traffic behavior is the data cell of blocking up or being jogging merges into respectively and block up or walk or drive slowly the highway section; Wherein data cell is for describing the basic processing unit of block up or walk or drive slowly traffic flow information and other non-unimpeded event information.

Illustrate, supposing has a plurality of DataUnit (data cell) on a road is equidirectional, and the state of each DataUnit is such as being; Wherein the 1st DataUnit is for blocking up, and the 2nd is unimpeded, and the 3rd, 4,5 for blocking up; The 6th is unimpeded, and the 7th is jogging, and the 8th for blocking up; The 9th is unimpeded ... so, and the 1st DataUnit is the highway section that blocks up, and the 3rd, 4,5 DataUnit is the highway section that blocks up; The 7th DataUnit is a jogging highway section, and the 8th DataUnit is the highway section or the like that blocks up.

Calculate pass through the time of the highway section that blocks up that the 3rd, 4,5 DataUnit constitute, the distance that is specially the 3rd, 4,5 DataUnit of calculating and present speed ratio and, that is:

Through time=L ₃/ V ₃+ L ₄/ V ₄+ L ₅/ V ₅

Wherein, the present speed value of each DataUnit can obtain through the traffic information collection means.

Need to prove; The weights allocation list comprises and embodies each category of roads road corresponding grading index, event class index and the parameter through time index; Normally rule of thumb be worth and preestablish by the engineering staff; The relative significance level of each item index under can relatively accurate objective reflection different situations, and the reference value etc. that can embody assessment transport information important level in the actual conditions.Can be quality of data personnel such as each item weights in the weights allocation list obtains according to the significance level of road with to analysis of a large amount of drive test datas etc.

In practical application, the weights allocation list can have multiple implementation, and those skilled in the art can set up on their own according to different design requirements,, introduces two kinds of concrete implementations here:

Referring to table 1, a kind of concrete implementation of weights allocation list is following:

Wherein, LC (Location Code, the pairing coding of each road in the positional information form) grade is certain road grade that corresponding coding sets in the information form of position, i.e. category of roads.Usually; When calculating the important level weighted value of certain Traffic Information; Confirm the row that it is corresponding in table 1 according to the LC grade (category of roads) of this road earlier; From its corresponding row, take out again with current Real-time Traffic Information is corresponding and can embody category of roads, event class and the value through time index; Be category of roads weights, event class weights and, utilize above-mentioned value to calculate the important level weighted value of this Traffic Information, such as multiplying each other with category of roads weights, event class weights with through the time weights through the time weights.

In the table 1, the category of roads weights are used to embody the weights of category of roads; The weights that block up are respectively applied for weights that embody the flow event class that blocks up and the weights of walking or drive slowly the flow event class with the jogging weights; If current Traffic Information current state is for blocking up; Then obtain the weights that block up accordingly here and be used to calculate the important level weighted value; If current Traffic Information current state is then obtained corresponding jogging weights here and is used to calculate the important level weighted value for jogging; Adopting the by stages mode to embody the weights of the time of passing through in certain highway section that blocks up or walk or drive slowly through the time, also is respectively to block up or the time of the passing through interval of living in the highway section of walking or drive slowly obtains corresponding weights according to current, is used to calculate the important level weighted value.

Referring to table 2, the implementation of another kind of weights allocation list is following:

Wherein, the LC grade is certain road grade that corresponding coding sets in the information form of position, i.e. category of roads.Usually; When calculating the important level weighted value of certain Traffic Information; Confirm the row that it is corresponding in table 2 according to the LC grade (category of roads) of this road earlier; From its corresponding row, take out again with current each Traffic Information is corresponding and can embody category of roads index, event class index and the value through time index; Utilize the value of These parameters to calculate the important level weighted value of each Traffic Information, such as multiplying each other with category of roads weights, event class weights with through the time weights.

In the table 2, the category of roads weights can be used to embody the weights of category of roads.Block up weights, jogging weights and other incident weights are respectively applied for the weights that embody the flow event class that blocks up, the weights of jogging flow event class; The weights of non-unimpeded event classes such as construction, traffic hazard; If current Traffic Information current state is for blocking up; Then obtain the weights that block up accordingly here and be used to calculate the important level weighted value; If current Traffic Information current state is jogging; Then obtain corresponding jogging weights here and be used to calculate the important level weighted value,, then obtain corresponding other incident weights here and be used to calculate the important level weighted value if current Traffic Information current state is other incidents such as road construction, traffic hazard.Be 20 minutes weights and be that 2 minutes weights are used to embody the weights through the time through the time through the time; Here through adopting the mode of linear relationship to confirm between the time weights corresponding with it; That is, will through the time as ordinate, weights are as horizontal ordinate; Weights when utilization is 20 minutes and 2 minutes through the time; Can confirm the straight line of an expression, like this, just can confirm different corresponding weights of the time of passing through according to the straight line of confirming through linear relationship between time and the weights.Need to prove; In this concrete implementation; Through why adopting linear relationship to confirm between time and the weights, can embody the different degree sizes of time in calculating each road important level weighted value of passing through because of weights through the time as long as be.In practical application; Through the time and through not only adopting above-mentioned linear relationship between the weights of time; Can also adopt other relation,, adopt linear relationship here just for convenience of calculation as long as can embody the degree size in calculating each road important level weighted value; Those skilled in the art can design according to the needs of oneself voluntarily, and the embodiment of the invention does not limit this.

Need to prove; It is lower that the weights that " other incident weights " in the last table 2 are can be provided with usually, because other incident generally includes incidents such as construction, traffic hazard, traffic control, and these incidents cause the degree of blocking up or walking or drive slowly normally more serious; Not soluble in the short time; Possibly need a whole morning or several days even longer time could revert to unimpeded state again, if for these data always do not stop to its issue, be a kind of waste not only for releasing resources; And can make some more real-time transport information not reported timely, user experience is relatively poor.Therefore, according to actual conditions, can adjust it through weights; Be about to the smaller of weights setting,, make to need not all to issue at every turn for these data such as " 0 "; Further improve the quantity of valid data in the RDS distributing data, promptly further improve the validity of RDS distributing data.

Need to prove that parameter in the table 2 " tmccancel " and " eventcancel " can use in other step, wouldn't introduce here, detailed content sees also the hereinafter associated description.

For the weights allocation list, category of roads weights wherein, event class weights and specifically adopt which specific targets (to adopt the weights that block up, jogging weights than event class in the implementation as shown in table 1 through the time weights; And event class adopts the weights that block up, jogging weights and other event class weights in implementation shown in the table 2); Perhaps adopt which concrete mode (such as in implementation shown in the table 1, adopting interval mode through the time; And in implementation shown in the table 2, adopt the linear relationship mode); The embodiment of the invention does not limit, as long as can in the weights allocation list, embody the significance level of These parameters.

In embodiments of the present invention; Also need to prove, in the practical application, usually also comprise and judge that whether category of roads is the predefined category of roads issued of not participating in; If; Then it is filtered out, filtered data is carried out balancedly considered category of roads, event class and again, calculate traffic behavior and be the step of the important level weighted value of each Traffic Information that blocks up or walk or drive slowly through the time.Like this, can need not to waste the RDS releasing resources, improve the validity of RDS distributing data so that the data of issue more are added with guiding value.Certainly; In the practical application; Also can not carry out the step that the predefined corresponding transport information of category of roads of not participating in issuing is filtered out, consider category of roads, event class and the time of passing through in equilibrium, when calculating the important level weighted value of each Traffic Information; Because the category of roads of these Traffic Informations is very low; The balanced important level weighted value that obtains after considering is very little usually, also maybe be too little when RDS issue owing to the important level weighted value, and the RDS releasing resources is limited and be not published away.

S102: current each Traffic Information is sorted by above-mentioned important level weighted value, issue by important level weighted value order from high to low through RDS (wireless Data Broadcasting System) issue passage.

It is thus clear that; In the embodiment of the invention; When utilizing RDS issue passage issue TMC data, balancedly consider that each item condition of road surface evaluation index calculates the important level weighted value that traffic behavior is each Traffic Information of blocking up or walking or drive slowly, and said each Traffic Information is sorted and issue by the important level weighted value; When treating distributing data like this and sorting; Be not a certain or a few indexs that only stress to consider in the transport information, but can be, thereby improved the quantity of valid data in the RDS distributing data the considering of each item condition of road surface evaluation index aggregative equilibrium; Promptly improved the validity of RDS distributing data, made to release news more accurately rationally.

Referring to Fig. 2, the embodiment of the invention provides another kind of wireless Data Broadcasting System transport information dissemination method, comprises the steps:

S201: from current Real-time Traffic Information, be that predefined transport information of not participating in issuing filters out with category of roads.

In the practical application, generally include and judge that whether category of roads is the predefined category of roads issued of not participating in, if then it is filtered out.Like this, can need not to waste the RDS releasing resources, improve the validity of RDS distributing data so that the data of issue more are added with guiding value.

Certainly; In the practical application; Also can not carry out the step that the predefined corresponding transport information of category of roads of not participating in issuing is filtered out, consider category of roads, event class and the time of passing through in equilibrium, when calculating the important level weighted value of each Traffic Information; Because the category of roads of these Traffic Informations is very low; The balanced important level weighted value that obtains after considering is very little usually, also maybe be too little when RDS issue owing to the important level weighted value, and the RDS releasing resources is limited and be not published away.

S202: from traffic behavior is the transport information of blocking up or walking or drive slowly the incredible information filtering of blocking up or walk or drive slowly to be fallen.

Though the so-called incredible transport information of blocking up or walking or drive slowly is meant that current traffic behavior is to block up or walk or drive slowly, this to block up or walk or drive slowly be very of short duration, will soon disappear, such as situation such as traffic lights such as certain crossings.For this very of short duration block up or jogging information releases; Not only taken the releasing resources of RDS, and little, sometimes even can mislead the user to user's guiding value; Therefore; In order further to improve the validity of RDS distributing data, preferred, with this very of short duration incredible block up or jogging information filters out in advance.

In the embodiment of the invention, be the transport information of blocking up or walking or drive slowly the incredible information filtering of blocking up or walk or drive slowly to be fallen, can comprise the steps: from traffic behavior

At first, calculate passing through the time of each processing unit.

Wherein, the time method of passing through of calculating each processing unit is specially:

In the calculation processing unit distance of each data cell and present speed ratio with, obtain passing through the time of each processing unit; Wherein, said processing unit is the data cell merging of blocking up and walking or drive slowly by an equidirectional adjacent traffic behavior of road.

Promptly on a road is equidirectional, adjacent traffic behavior is the data cell of blocking up and walking or drive slowly merges into processing unit; Wherein data cell is for describing the basic processing unit of block up or walk or drive slowly traffic flow information and other non-unimpeded event information.

That is to say that processing unit is a road equidirectional adjacent two to be in data cell between the data cell of unimpeded state, that state is and blocks up, walks or drive slowly merge and obtain.Illustrate, supposing has a plurality of DataUnit on a road is equidirectional, and the state of each DataUnit is such as being that wherein the 1st DataUnit is for blocking up; The 2nd is unimpeded, and the 3rd, 4 the 5th is jogging in order to block up, and the 6th is unimpeded; The 7th is jogging, and the 8th for blocking up, and the 9th is unimpeded ... so; The 1st DataUnit is a processing unit, and the 3rd, 4,5 DataUnit is a processing unit, and the 7th, 8 DataUnit is processing unit or the like.

Calculate pass through the time of processing unit that the 3rd, 4,5 DataUnit constitute, the distance that is specially the 3rd, 4,5 DataUnit of calculating and present speed ratio and, that is:

Through time=L3/V3+L4/V4+L5/V5.

That is to say, in the embodiment of the invention, calculation processing unit pass through the time time, only calculate, and unimpeded information is directly crossed, and does not do calculating to being in the road information that blocks up or walk or drive slowly in the current transport information.So just, can realize from traffic behavior being the transport information of blocking up or walking or drive slowly the incredible information filtering of blocking up or walk or drive slowly to be fallen.

On concrete the realization, can be to begin from the road section start, data cell goes to calculate one by one; If equidirectional adjacent traffic behavior is to block up, walk or drive slowly; Then with it as a processing unit, go to calculate it through the time, if the traffic behavior of current data unit is unimpeded; Then cross it and continue to calculate downwards, so just can the time of passing through of whole processing units all be calculated.

Then, more said relation through time and predetermined threshold value filters out said through the Traffic Information of time less than said predetermined threshold value.

Here; Preset threshold value is generally according to the credible demands of different of blocking up, walk or drive slowly rule of thumb is provided with in advance; That is to say, think that then it is the incredible data of blocking up, walk or drive slowly, and need filter out it if the time of passing through of the gentle walking along the street section of blocking up is less than certain time; Accordingly, preset threshold value just can be certain above-mentioned time.

In practical application, each data cell quantity of handling that unit pack draws together be at random, uncertain, the processing unit that promptly has may comprise tens or data cell up to a hundred, even more, the processing unit that has then may only comprise several data cells.

For comprising the more processing unit of data cell quantity, even the time of passing through of wherein part or all of data cell is all very short, but for an equidirectional processing unit of going up continuously the data cell formation of so most amounts of road; Its overall time of passing through exceeds preset threshold value; Think that then it is comparatively serious blocking up or walking or drive slowly, that is to say, exceed the value (being preset threshold value) that to stand through the time for the equidirectional integral body that continuous longer distance of road; Then it is not can very fast being able to coordinate the state that reaches unimpeded as early as possible; Think that it is believablely to block up or walk or drive slowly, all be in etc. the state of traffic lights such as, continuous a plurality of data cells; This situation is different from the situation of the traffic lights such as several data cells of continuous minority; Can be able to coordinate to solve the state that reaches unimpeded as early as possible, the latter does not belong to the incredible situation of blocking up or walking or drive slowly when totally not exceeding predetermined threshold value through the time, should be filtered.

Certainly; Be appreciated that; For comprising the less processing unit of data cell quantity,, that is to say that wherein part or all of data cell is in more serious blocking up or the jogging state if it totally surpasses predetermined threshold value through the time; Be not to be able to coordinate the state that reaches unimpeded as early as possible very soon, belong to believable and block up or walk or drive slowly.Accordingly; Comprise the processing unit that data cell quantity is less; If it totally surpasses predetermined threshold value through time, explain its through the time less than the time that can stand (being predetermined threshold value), can be able to coordinate to reach as early as possible unimpeded state very soon; Belong to incredible and block up or walk or drive slowly, should be filtered.

In addition, also need to prove, in the embodiment of the invention; Be first execution in step S201 execution in step S202 again, in practical application, also can first execution in step S202; Execution in step S201 does not more limit the execution sequence embodiment of the invention of step S201 and step S202.

S203: balanced consider each item condition of road surface evaluation index, calculate traffic behavior and be the important level weighted value of each Traffic Information that blocks up or walk or drive slowly.

In the embodiment of the invention, consider each item condition of road surface evaluation index, calculate traffic behavior and be the step of the important level weighted value of each Traffic Information that blocks up or walk or drive slowly the information and executing of current Traffic Information after step S201 and S202 filter is balanced.

S204: current each Traffic Information is sorted by above-mentioned important level weighted value, issue by important level weighted value order from high to low through RDS issue passage.

Need to prove that the principle of work of each step among this method embodiment and processing procedure can repeat no more referring to the associated description among the above-mentioned method embodiment shown in Figure 1 here.

Further; Comprise also in the embodiment of the invention that from traffic behavior be the step of the transport information of blocking up or walking or drive slowly the incredible information filtering of blocking up or walk or drive slowly being fallen,, not only taken the releasing resources of RDS for this very of short duration block up or jogging information is that the incredible information of blocking up or walking or drive slowly releases; Guiding value to the user is little; Sometimes even can mislead the user, therefore, can further improve the validity of RDS distributing data.

Referring to Fig. 3, the embodiment of the invention provides another kind of wireless Data Broadcasting System transport information dissemination method, comprises the steps:

S301: from current Real-time Traffic Information, be that predefined transport information of not participating in issuing filters out with category of roads.

S302: balanced consider each item condition of road surface evaluation index, calculate traffic behavior and be the important level weighted value of each Traffic Information that blocks up or walk or drive slowly.

S303: current each Traffic Information is sorted by above-mentioned important level weighted value from high to low.

S304: obtain published data concentrate traffic behavior be block up or jogging and current each Traffic Information in be the unimpeded Traffic Information of change.

For more data that navigation had guiding value are provided; Further improve the validity of RDS distributing data; The embodiment of the invention also comprises utilizes the timely issuing traffic state of RDS issue passage to change to the step of unimpeded Traffic Information by blocking up or walking or drive slowly, and further improves user experience.

Need to prove that utilize RDS issue passage distributing traffic information, user terminal receives the transport information of issue, and navigates according to these transport information.Subscriber terminal equipment (such as navigating instrument etc.) can be provided with stale data cancellation function usually; Such as just thinking stale data after the expired time of subscriber terminal equipment after receiving transport information; Can show that no longer it is for blocking up or the jogging state automatically with its cancellation in subscriber terminal equipment.Suppose that subscriber terminal equipment is in a transport information that is in congestion status that receives the issue of RDS issue passage 10 o'clock; Another that received the issue of RDS issue passage at 10: 10 is in the transport information of jogging state; If the expired time of subscriber terminal equipment is 15 minutes; Then on this subscriber terminal equipment, can the above-mentioned transport information that is in congestion status be canceled in the time of 10: 15, show that no longer it is a congestion status; In 10: 25, the above-mentioned transport information that is in the jogging state is canceled.For navigation instruction information more accurately is provided to the user, further can also utilize the timely issuing traffic state of RDS issue passage to be updated to unimpeded Traffic Information in the embodiment of the invention by blocking up or walking or drive slowly, that is to say; Continue to use example; If the transport information that is in the jogging state that subscriber terminal equipment received at 10: 10 has changed to unimpeded state in 10: 15, then can utilize RDS issue passage that this modification information is released; Like this; Subscriber terminal equipment just can be recognized the modification information of this road condition timely, and the just expired cancellation that need not always to wait until 10: 25 has further improved user experience; Also further improve the high data bulk of important level in the RDS distributing data, promptly further improved the validity of RDS distributing data.

In the embodiment of the invention, system can safeguard automatically and be used to store announced data content by a published data collection, whole data of blocking up or walking or drive slowly of issuing before comprising.This published data collection also can carry out state according to the situation of current distributing data after each data issuing upgrades, to guarantee that when the next data issuing, the information of obtaining among this step S304 is accurately.

Among this step S304; Need data and current each Traffic Information that published data is concentrated be compared; To obtain the published data collected state is the data of blocking up or walking or drive slowly, in the current Real-time Traffic Information traffic behavior of corresponding data change to unimpeded, with its issue; In time inform the user, so that it is effectively navigated.

S305: balanced consideration each item cancellation evaluation index, calculate each said important level weighted value that has changed Traffic Information.

Equally; Because the RDS issue passage unit interval is sent TMC incident limited amount; In order further to improve the validity that Traffic Information has been upgraded in issue, i.e. limited upgrading in issue improves the high quantity of upgrading Traffic Information of important level as far as possible in the Traffic Information quantity.Therefore; This step is as an optional step, and is preferred, adopts balanced each item cancellation evaluation index of considering; Calculate the important level weighted value that each has changed Traffic Information; So that can be according to the important level weighted value that calculates when the RDS issue has been upgraded Traffic Information, issue from high to low be to improve the validity that Traffic Information has been upgraded in issue.

In concrete the realization, each item cancellation evaluation index can comprise category of roads and cancellation event class; Also can comprise category of roads, cancellation event class and cancellation time; Can also comprise more index.Need to prove that all adopt category of roads, cancellation event class and cancellation time to describe as each item cancellation evaluation index among present embodiment and other each embodiment, other situation principle is identical, repeats no more.

In like manner; Balanced consideration each item cancellation evaluation index calculates each method that has changed the important level weighted value of Traffic Information to be had a variety of; Such as multiplying each other or method such as addition realizes to each each item cancellation evaluation index that has changed Traffic Information; As long as can realize considering These parameters is balanced, get final product but not only stress wherein a certain or a few, the embodiment of the invention does not limit this.

In the embodiment of the invention, introduce a kind of balanced consider category of roads, cancellation event class and cancellation time, calculate each said concrete implementation that has changed the important level weighted value of Traffic Information, comprise the steps:

At first, respectively according to the above-mentioned cancellation time of having changed the category of roads of Traffic Information, current cancellation event class and current highway section, obtain each category of roads weights that changed Traffic Information, cancellation event class weights and cancellation time weights;

Calculate the product of above-mentioned category of roads weights, cancellation event class weights and cancellation time weights again, obtain the important level weighted value that each has changed Traffic Information.

Wherein, Respectively according to the said cancellation time of having changed the category of roads of Traffic Information, current cancellation event class and current highway section; Obtain the method for each category of roads weights that changed Traffic Information, cancellation event class weights and cancellation time weights; Also can be to realize through the weight table that inquiry is preset, in concrete the realization, the weight table here can with the foregoing description in obtain category of roads weights, event class weights and make a form through the weights allocation list of time weights and realize; Also can realize with two forms respectively, not limit here.

With above-mentioned table 1 is example; Introduction is according to the said cancellation time question blank 1 that has changed the category of roads of Traffic Information, current cancellation event class and current highway section, obtains the category of roads weights, event class weights of each road and a concrete implementation through the time weights:

Also be to confirm the row that it is corresponding in table 1 according to the LC grade that changes road earlier, the row corresponding, take out corresponding weights from it.The row that category of roads weights in the table 1 are corresponding is the category of roads weights that change road, subregionally can be used for the weights of cancellation time through the time weights, such as, the cancellation time is 4 minutes, obtains the weights through corresponding row of 5～2 minutes time.The cancellation incident is not corresponding value in table 1; We can think that all cancellation event classes that changed road all are consistent; To the influence that calculating produced of changing road important level weighted value also all is consistent; Can be made as same value for cancellation event class weights this moment, such as 1, or the like.Certainly, in the practical application, also can in table 1, expand, the weights that the cancellation incident is corresponding also add, and like this, the result who obtains will be more excellent, such as table 2.

Introduction is according to the said cancellation time question blank 2 that has changed the category of roads of Traffic Information, current cancellation event class and current highway section, obtains the category of roads weights, event class weights of each road and another the concrete implementation through the time weights:

Also be to confirm the row that it is corresponding in table 2 according to the LC grade that changes road earlier, the row corresponding, take out corresponding weights from it.The row that category of roads weights in the table 2 are corresponding is the category of roads weights that change road; The time of the passing through weights of confirming by linear relationship can be used for cancellation time weights; That is to say that the weights of the weights through the time and cancellation incident all adopt to be inquired about through the time weights in table 2.Wherein, Tmccancel and eventcancel are respectively applied for the weights of expression cancellation event class; Tmccancel is the corresponding event class weights of the magnitude of traffic flow, and here, traffic behavior changes to the unimpeded corresponding weights of this row of incident inquiry by blocking up or walking or drive slowly; Eventcancel is other traffic events (such as construction, traffic hazard etc.) grade weights, inquires about the corresponding weights of this row when Status Change is unimpeded.

Generally, it is lower that the weights that eventcancel is corresponding can be provided with, such as 0 etc.; Main cause is that the processing time of common construction, traffic hazard is longer; Promptly need the long period just can revert to unimpeded state, and the expired time of subscriber terminal equipment that is to say usually less than the processing time of construction, traffic hazard; Generally; Became unimpeded state before the RDS issue in incidents such as construction, traffic hazards, should this information have been cancelled automatically in the subscriber terminal equipment, so the important level of this part data issuing should be less than the corresponding weights of tmccancel.

Setting corresponding cancellation time each cancellation time during weights, mainly consider 2 points, one is the relation between issuing time and the subscriber terminal equipment expired time.Concrete, the transport information that issuing time is forward more, its expired time from subscriber terminal equipment is approaching more, the transport information after issuing time is leaned on more, its expired time from subscriber terminal equipment is long more.Being provided with of cancellation time weights can take into account usually more preferentially issue its long more data of expired time from subscriber terminal equipment, makes that the time of the transport information that has mistake in the subscriber terminal equipment is short more.Another one consider point be upgraded transport information before the time of pass through long more, think that then this part data is important more, more preferentially issue.After taking all factors into consideration, preferred in the embodiment of the invention, calculate the cancellation time in highway section and can adopt following concrete grammar:

Calculate published data and concentrate the time of pass through in said highway section and the difference of transmitting time, obtain the cancellation time in said highway section; Wherein transmitting time is the issuing time of said section traffic information and the time interval between the current time.

Illustrating, suppose that issuing a bar state 10 o'clock be the transport information of blocking up, is 10 minutes through the time wherein, and having issued a bar state at 10: 9 is the transport information of blocking up, and is 3 minutes through the time wherein.Above-mentioned two transport information all change to unimpeded state in 10: 10; Then utilizing said method to calculate article one state is cancellation time of the transport information of blocking up to be 10-9=1 minute, and the second state is 3-1=2 minute for the cancellation time of the transport information of jogging.

S306: the said Traffic Information that changed is sorted by said important level weighted value from high to low.

Need to prove that the embodiment of the invention is to the not strict restriction of the execution sequence between step S304-S306 and the step S301-S303, can first execution in step S301-S303; Execution in step S304-S306 again; Also can first execution in step S304-S306, execution in step S301-S303 again can also executed in parallel step S301-S303 and step S304-S306; As long as before execution in step S307, step S301-S303 and step S304-S306 all execute and get final product.

S307: the data that data that step S306 is obtained and step S303 obtain are issued through RDS issue passage by preset separately issue amount in the lump.

In the embodiment of the invention, preferred, with the said Traffic Information that changed through sorting among the S306,, issue through RDS issue passage in the lump by preset separately issue amount with said current each Traffic Information through sorting among the S303.

Usually; Preset issue amount preestablishes according to different cities, different application scene etc. usually; Such as for Beijing, per minute can be issued about 60 data usually, because the data that Beijing blocks up or walks or drive slowly are more; The amount that can preestablish the current transport information of blocking up or walking or drive slowly in the issue amount is big; The amount that has changed road information is smaller, probably about 45-50, and is updated to the unimpeded amount that changes Traffic Information by blocking up or walking or drive slowly probably about 10-15 for state such as the amount of the current transport information of blocking up or walking or drive slowly; Each different application scenes can be provided with voluntarily, and the embodiment of the invention does not limit this.

S308: the published data collection is carried out state upgrade.

In the embodiment of the invention, in step S304, need relatively published data collection and current Real-time Traffic Information, change to unimpeded information by blocking up or walking or drive slowly to obtain traffic; Issue; Wherein, published data is concentrated the whole data of blocking up or walking or drive slowly that need storage to issue before, when Updating Information for each issue; Step S304 can get access to accurate data, needs after data issuing, the published data collection to be carried out state at every turn and upgrades.

The published data collection is carried out the state renewal mainly comprises following 2 aspects:

A, published data concentrate the said published data of deletion concentrate traffic behavior be block up or jogging and current each Traffic Information in be unimpeded Traffic Information.

Particularly; Whole data of blocking up or walking or drive slowly that published data has been issued before concentrating and storing; And in the data that ought announcedly block up or walk or drive slowly; The current traffic behavior of some data changes to unimpeded, then need it be concentrated deletion at published data, to guarantee when issuing next time, can to get access to accurate data among the step S304.

B, judge the information whether published data is concentrated has with each Traffic Information same road segment of current issue; If have; Then concentrate the information in said highway section to replace with the transport information in the said highway section of current issue published data; If do not have, concentrate the Traffic Information of the current issue that does not have to add published data to published data and concentrate, obtain new published data collection.

Need to prove; In the RDS data issuing process; Real-time for the transport information that guarantees to issue; The every once current up-to-date Real-time Traffic Information of interval acquiring at regular intervals of common meeting, and utilize RDS issue passage to issue current Real-time Traffic Information in the time interval before obtaining next Real-time Traffic Information.For the Traffic Information that difference is criticized; May be in different traffic behaviors for same road segment; For the data mode that guarantees the published data centralized stores is maintained up-to-dately, need concentrate the information of same road segment replace with the Traffic Information in this highway section of current issue published data.And for current distributing data and published data collection relatively after; Published data is concentrated the data that do not have; Need add these data that do not have to published data and concentrate, be the data of blocking up or walking or drive slowly to guarantee that the published data centralized stores has the state of all having issued.

Illustrate a kind of concrete implementation of this step:

Supposing has a plurality of DataUnit (data cell) on a road is equidirectional; The following information that this road is arranged in the published data centralized stores: the 1st DataUnit is as a highway section; Be congestion status, the 3rd, 4,5 DataUnit is congestion status as a highway section; 7th, 8 DataUnit are the jogging state as a highway section ...

A kind of situation: current issue in each Traffic Information of ordering, following to information that should road: the 2nd DataUnit is the jogging state as a highway section; The 3rd DataUnit is congestion status as a highway section, and the 4th DataUnit is as a highway section; Be the jogging state; The 5th DataUnit is congestion status as a highway section, and the 7th, 8 DataUnit is as a highway section; Be the jogging state ... the state in current issue changes in the unimpeded data by blocking up or walking or drive slowly, following to information that should road: the 1st DataUnit state changed to unimpeded by jogging.For this scene, the published data collection is carried out state upgrade as follows: concentrate the following record of deletion " the 1st DataUnit is congestion status as a highway section " at published data; Concentrate at published data and will write down " the 3rd, 4,5 DataUnit is congestion status as a highway section " as follows and replace with " the 3rd DataUnit is congestion status as a highway section; the 4th DataUnit is the jogging state as a highway section, and the 5th DataUnit is as a highway section; be congestion status "; To write down " the 7th, 8 DataUnit is the jogging state as a highway section " and replace with " the 7th, 8 DataUnit is the jogging state as a highway section "; Concentrate the following record of interpolation " the 2nd DataUnit is the jogging state as a highway section " at published data.

Another kind of situation: current issue in each Traffic Information of ordering; Information to should road is following: the 2nd DataUnit is as a highway section; Be the jogging state, the 3rd, 4 DataUnit is congestion status as a highway section; 7th, 8 DataUnit are as a highway section; Be the jogging state ... the state in current issue changes in the unimpeded data by blocking up or walking or drive slowly, following to information that should road: the 1st DataUnit state changes to unimpeded state by jogging, and the 5th DataUnit state changes to unimpeded state by blocking up.For this scene; The published data collection is carried out state to be upgraded as follows: concentrate the following record of deletion " the 1st DataUnit is as a highway section; be congestion status " and " the 3rd, 4,5 DataUnit is congestion status as a highway section " at published data; Concentrate at published data and will write down " the 7th, 8 DataUnit is the jogging state as a highway section " as follows and replace with " the 7th, 8 DataUnit is the jogging state as a highway section "; Concentrate the following record of interpolation " the 2nd DataUnit is the jogging state as a highway section " and " the 3rd, 4 DataUnit is congestion status as a highway section " at published data.

Need to prove, according to RDS data processing and the relevant regulations such as consensus standard of issue, usually; When utilizing RDS issue passage distributing data; Need data be merged into the long form of multistep, multistep long form described here is the index form in highway section one by one according to this, and during for inter-process; Need data be split into the long form of single step, single step long form described here is the index form of DataUnit (data cell) one by one according to this.That is to say; In the data of current issue and to concentrate the data layout stored to be multistep at published data long; When published data is relatively concentrated the information that whether has with each Traffic Information same road segment of current issue, then need carry out to the single step long form, that is to say; Data that need respectively published data is concentrated and the data in the current distributing data split into the single step long form, promptly above-mentionedly compare to the form of DataUnit one by one.Wherein, Published data is concentrated the information with each Traffic Information same road segment of current issue; Be meant in each Traffic Information of published data collection and current issue and have the road section information that comprises identical DataUnit; In a kind of situation before above-mentioned; Concentrate the 3rd, 4,5 road section information that DataUnit constitutes in the road section information that the 3rd, 4,5 DataUnit constitute, the current published data at published data, because the highway section comprises identical DataUnit in published data collection and the current published data, so belong to same road segment information; And in the above-mentioned latter event; Concentrate the 3rd, 4 road section information that DataUnit constitutes in the road section information of the 3rd, 4,5 DataUnit formation, the current published data at published data; Because the highway section does not comprise identical DataUnit in published data collection and the current published data, so do not belong to same road segment information.

Need to prove that the principle of work of each step among this method embodiment and processing procedure can repeat no more referring to the associated description among above-mentioned Fig. 1 and the method embodiment shown in Figure 2 here.

Further, the embodiment of the invention also comprises utilizes RDS issue passage real-time release traffic behavior to change to the step of unimpeded Traffic Information by blocking up or walking or drive slowly, and to provide more navigation is had the data of guiding value, further improves user experience; Further again; The embodiment of the invention can also balancedly be considered each item cancellation evaluation index, calculates each said important level weighted value that has changed Traffic Information, and it is sorted; By ordering order issue from high to low, with the validity of further raising RDS distributing data.

Referring to Fig. 4, the embodiment of the invention also provides another kind of wireless Data Broadcasting System information issuing method, comprises the steps:

S401: from current Real-time Traffic Information, be that predefined transport information of not participating in issuing filters out with category of roads.

S402: from traffic behavior is the transport information of blocking up or walking or drive slowly the incredible information filtering of blocking up or walk or drive slowly to be fallen.

Need to prove, in the embodiment of the invention, be first execution in step S401 execution in step S402 again, in practical application, also can first execution in step S402, and execution in step S401 does not limit this embodiment of the invention again.

S403: balanced consider each item condition of road surface evaluation index, calculate traffic behavior and be the important level weighted value of each Traffic Information that blocks up or walk or drive slowly.

In the embodiment of the invention; Consider each item condition of road surface evaluation index to the information and executing of current each Traffic Information after step S401 and S402 filter is balanced, calculate traffic behavior and be the step of the important level weighted value of each Traffic Information that blocks up or walk or drive slowly.

S404: current each Traffic Information is sorted by above-mentioned important level weighted value from high to low.

S405: obtain published data concentrate traffic behavior be block up or jogging and current each Traffic Information in be the unimpeded Traffic Information of change.

In this step; Need data and current each Traffic Information that published data is concentrated be compared; To obtain the published data collected state is the data of blocking up or walking or drive slowly, in current each Traffic Information the traffic behavior of corresponding data change to unimpeded, with its issue; In time inform the user, so that it is effectively navigated.

S406: balanced consideration each item cancellation evaluation index, calculate each said important level weighted value that has changed Traffic Information.

S407: the said Traffic Information that changed is sorted by said important level weighted value from high to low.

Need to prove that the embodiment of the invention is to the not strict restriction of the execution sequence between step S405-S407 and the step S401-S404, can execution of step S401-S404; Execution in step S405-S407 again; Also can first execution in step S405-S407, execution in step S401-S404 again can also executed in parallel step S401-S404 and step S405-S407; As long as before execution in step S408, step S401-S404 and step S405-S407 all execute and get final product.

S408: the data that data that step S407 is obtained and step S404 obtain are issued through RDS issue passage by preset separately issue amount in the lump.

In the embodiment of the invention, preferred, with the said Traffic Information that changed through sorting among the S407,, issue through RDS issue passage in the lump by preset separately issue amount with the said current Real-time Traffic Information through sorting among the S404.

Usually, preset issue amount preestablishes according to different cities, different application scene etc. usually, and each different application scenes can be provided with voluntarily, and the embodiment of the invention does not limit this.

S409: the published data collection is carried out state upgrade.

In the embodiment of the invention, in step S405, need relatively published data collection and current each Traffic Information, change to unimpeded information by blocking up or walking or drive slowly to obtain traffic; Issue; Wherein, published data is concentrated the whole data of blocking up or walking or drive slowly that need storage to issue before, when Updating Information for each issue; Step S405 can get access to accurate data, needs after data issuing, the published data collection to be carried out state at every turn and upgrades.

The published data collection is carried out the state renewal mainly comprises the following aspects:

Need to prove that the principle of work of each step among this method embodiment and processing procedure can repeat no more referring to the associated description among above-mentioned Fig. 1, Fig. 2 and the method embodiment shown in Figure 3 here.

Further again, the embodiment of the invention also comprises utilizes RDS issue passage real-time release traffic behavior to change to the step of unimpeded Traffic Information by blocking up or walking or drive slowly, and to provide more navigation is had the data of guiding value, further improves user experience; Further again; The embodiment of the invention can also balancedly be considered each item cancellation evaluation index, calculates each said important level weighted value that has changed Traffic Information, and it is sorted; By ordering order issue from high to low, with the validity of further raising RDS distributing data.

Below, to embodiment illustrated in fig. 4, a kind of concrete application example is provided, referring to Fig. 5, mainly comprise the steps:

S501: each current Real-time Traffic Information of traversal single step long data form if judge the predefined category of roads issued of not participating in of its category of roads, then filters out it.

Each current Real-time Traffic Information of traversal single step long form; Promptly refer to travel through each current traffic information data of DataUnit (data cell) form one by one; The category of roads of judging which DataUnit is the predefined category of roads issued of not participating in, and it is filtered out get final product.

S502:, as a processing unit, obtain the set of whole processing units to an equidirectional adjacent DataUnit who blocks up, walks or drive slowly of road according to continuous relation before and after the LC in the LC Basic Information Table.

The LC Basic Information Table is also referred to as the LC location information table usually, wherein records the pairing coding of each actual physical location information.Usually, can record the information such as coding, direction, incident, step-length and timestamp of each DataUnit in the LC Basic Information Table.

In this step; According to the continuous relation in the front and back of LC in the LC Basic Information Table; The adjacent DataUnit that blocks up, walks or drive slowly as a processing unit road is equidirectional, that is to say, be in whole DataUnit of blocking up, walking or drive slowly between equidirectional adjacent two unimpeded DataUnit of road as a processing unit; Each processing unit is that unimpeded DataUnit breaks off from state, obtains the set of whole processing units.

S503: calculate passing through the time of each processing unit.

Concrete, the Time Calculation method of passing through of processing unit mainly comprises the steps:

The ratio of distance and the present speed of each DataUnit in elder generation's calculation processing unit promptly calculates passing through the time of each DataUnit earlier;

The time of passing through addition with above-mentioned each DataUnit obtains passing through the time of this processing unit again.

S504: compare the time of passing through of each processing unit and the relation of predetermined threshold value,, think that then it is insincere blocking up or jogging information, filters out it if less than predetermined threshold value; If greater than predetermined threshold value, think that then it is crediblely to block up or jogging information execution in step S505.

S505: the transport information of the single step long data form that will obtain through above-mentioned steps is merged into multistep long data form, forms to be released block up or walk or drive slowly data.

The transport information of single step long data form is merged into the long data layout of multistep specifically to be referred to; The data mode of DataUnit form is merged into the data mode of highway section form; To meet RDS data processing and the relevant regulations such as consensus standard of issue, so that utilize RDS issue passage to carry out data issuing.

Wherein, the method for the transport information of single step long data form being merged into multistep long data form is specially:

On a road is equidirectional, adjacent traffic behavior is the data cell of blocking up or being jogging merges into respectively and block up or walk or drive slowly the highway section; Here, said data cell is for describing the basic processing unit of block up or walk or drive slowly traffic flow information and other non-unimpeded event information.

S506: category of roads, event class and the time of passing through are considered in equilibrium, calculate the important level weighted value of the highway section that respectively blocks up, jogging section traffic information.

This sentences the table 2 shown in the inquiry said method embodiment and is example; Category of roads according to the highway section that respectively blocks up, jogging highway section is confirmed the row that it is corresponding in table 2; Correspondence inquires the highway section that blocks up (or jogging highway section) road corresponding grade weights, the weights that block up (or jogging weights or other incident weights) and passes through the time weights; Calculate category of roads weights, weights that block up (or jogging weights or other incident weights) and the product that passes through the time weights, the important level weighted value of the highway section that respectively blocked up (or jogging highway section) transport information.

S507: sort from high to low by above-mentioned important level weighted value.

S508: the multistep long data that published data is concentrated is split as the single step long data, and the corresponding relation of the single step long data after record multistep long data and the fractionation.

In this instance, system can safeguard automatically and be used to store announced data content by a published data collection, whole data of blocking up or walking or drive slowly of issuing before comprising.This published data collection also can carry out state according to the situation of current distributing data after each data issuing upgrades, to guarantee that when the next data issuing, the information of obtaining among this step S508 is accurately.

S509: the traffic behavior of the single step long data that obtains after single step long data after relatively S508 splits and S504 filter; If certain single step long data in S508 state for blocking up or walk or drive slowly in S504 to unimpeded, then with it as change transport information to be released.

Such as; Concentrate at published data, store following information: the 5th DataUnit of certain road is congestion status, with single step long data among the S504 relatively after; The 5th DataUnit state of this road becomes unimpeded, then with it as one of change transport information to be released.

S510: according to above-mentioned corresponding relation, find the multistep long data that changes the transport information correspondence to be released, balanced consideration category of roads, cancellation event class and cancellation time, calculate the important level weighted value that has respectively changed transport information.

Be example also here,, find each to change the corresponding multistep long data of transport information at first according to recorded corresponding relation among the S508 with the table 2 shown in the inquiry said method embodiment.

Confirm the row that it is corresponding in table 2 according to the category of roads that changes transport information of each multistep long form; Correspondence inquires each multistep long data road corresponding grade weights, tmccancel (or eventcancel) weights and cancellation time weights (dual-purpose is through the time weights) here; Calculate category of roads weights, tmccancel (or eventcancel) weights and the product of cancelling the time weights, obtain the important level weighted value that each multistep long form has changed transport information.

S511: sort from high to low by the important level weighted value to changing Traffic Information.

S512:, issue through RDS issue passage in the lump through sorting by preset separately issue amount with block up or the walk or drive slowly data and the to be released change transport information of S511 to be released of S507 through ordering.

Each preset issue amount can be provided with according to concrete application scenarios in advance; In practical application; The issue amount that one minute magnitude of traffic flow issue amount is used for confirming the data of blocking up or walk or drive slowly to be released can be set usually, one minute cancellation incident issue amount be set be used for confirming the issue amount that changes transport information to be released.

S513: the published data collection is carried out state upgrade.

The multistep long data that A, traversal published data are concentrated, that finds current issue changes the corresponding multistep long data of transport information, concentrates its deletion at published data.

The multistep long data that B, traversal published data are concentrated; Judge in the data of blocking up or walk or drive slowly of current issue; Whether have with published data and concentrate corresponding multistep long data; If have, the multistep long data of then published data being concentrated replaces with the multistep long data in the blocking up of current issue or the data of walking or drive slowly; If no, then adding the multistep long data in the data of blocking up or walk or drive slowly of the current issue that does not have to published data concentrates.

Wherein, judge in the data of blocking up or walk or drive slowly of current issue whether have with published data and concentrate corresponding multistep long data to be specially:

Splitting published data respectively concentrates blocking up of corresponding multistep long data and current issue or walks or drive slowly data; Obtain corresponding single step long data; Judge whether both have the multistep long data that comprises identical DataUnit; If both comprise the multistep long data of identical DataUnit, then thinking has in the data of blocking up or walk or drive slowly of current issue and published data is concentrated corresponding multistep long data.Illustrate; If published data is concentrated the 3rd, 4,5 DataUnit of corresponding certain road of certain multistep long data; The the 3rd, 4,5 DataUnit of also corresponding certain road of certain multistep long data in the data of blocking up or walk or drive slowly of current issue, then think in the data of blocking up or walk or drive slowly of current issue this multistep long data for and published data concentrate corresponding multistep long data.

Referring to Fig. 6, the embodiment of the invention also provides a kind of wireless Data Broadcasting System transport information distribution apparatus, comprising:

Weighted value computing module 601 is used for balanced each item condition of road surface evaluation index of considering, calculates traffic behavior and be the important level weighted value of each Traffic Information that blocks up or walk or drive slowly;

Ordering release module 602 is used for said each Traffic Information is sorted by said important level weighted value, issues by important level weighted value order from high to low through RDS wireless Data Broadcasting System issue passage.

In the embodiment of the invention; When the important level weighted value to each Traffic Information calculates, need balanced each item condition of road surface evaluation index of considering, the situation of above-mentioned each index of embodiment that the important level weighted value of feasible each Traffic Information that calculates can be balanced; When issue; Issue from high to low according to the ordering of this important level weighted value, like this, make it possible to preferentially issue of paramount importance transport information behind above-mentioned each index equilibrium; Make information releasing more accurately rationally; Thereby avoid owing to stress to consider wherein a certain or a few indexs, the data of preferential issue possibly not be to be current most important data when causing distributing data, and the user is misled.

Need to prove; Because the RDS issue passage unit interval is sent TMC incident limited amount; When utilizing RDS issue passage to issue current Real-time Traffic Information, the issuing traffic state is in the transport information of blocking up or walking or drive slowly usually, so that the user is effectively navigated; Navigate for the user that to be worth not be very big and be in unimpeded transport information, do not do issue usually for current traffic condition.Therefore preferred; When above-mentioned balanced consideration each item condition of road surface evaluation index calculates the important level weighted value of each Traffic Information; Need be that the data filter that passes unimpeded falls with current traffic behavior; Promptly balancedly consider each item condition of road surface evaluation index, calculate traffic behavior and be the important level weighted value of each Traffic Information that blocks up or walk or drive slowly.

Preferably, in one embodiment of the present of invention, said weighted value computing module 601 can comprise:

Weights obtain submodule, are used for obtaining the condition of road surface evaluation index weights that traffic behavior is each road of blocking up or walking or drive slowly according to current each Traffic Information;

The calculating sub module that multiplies each other is used to calculate the product of each item condition of road surface evaluation index weights of said road, obtains traffic behavior and be the important level weighted value of each Traffic Information of blocking up or walking or drive slowly.

Need to prove, in the embodiment of the invention, saidly obtain category of roads weights that traffic behavior is each road of blocking up or walking or drive slowly, event class weights and a kind of concrete implementation through the time weights can be according to current each Traffic Information:

Be the time of the passing through inquiry weights allocation list in category of roads, current event grade and the current highway section that blocks up or walk or drive slowly of each road of blocking up or walking or drive slowly according to traffic behavior respectively, obtain traffic behavior and be the category of roads weights, event class weights of each road of blocking up or walking or drive slowly and through the time weights.

Concrete; Be provided with each category of roads road corresponding grade weights, event class weights in the above-mentioned weights allocation list in advance and pass through the time weights; Wherein, The event class weights are specially the grade weights of each non-unimpeded incident, such as the event class weights that block up, jogging event class weights, other is like non-unimpeded event class weights such as construction, traffic hazards.Be specially the time of the passing through weights in the highway section that blocks up, the time of the passing through weights in jogging highway section through the time weights.It is thus clear that; In the embodiment of the invention; According to traffic behavior be the time of the passing through inquiry weights allocation list in category of roads, current event grade and the current highway section that blocks up or walk or drive slowly of each road of blocking up or walking or drive slowly obtain be the relevant weights that traffic behavior is each road of blocking up or walking or drive slowly, can realize with state being that unimpeded road information filters out here.

Wherein, calculating the concrete implementation of the time of passing through in the said highway section that blocks up or walk or drive slowly can be:

Said data cell is for describing the basic processing unit of block up or walk or drive slowly traffic flow information and other non-unimpeded event information.

Further; Referring to Fig. 7; The wireless Data Broadcasting System transport information distribution apparatus that the embodiment of the invention provides can also comprise: the insincere information filtering module 603 of blocking up or walk or drive slowly; Being used for from traffic behavior is that the transport information of blocking up or walking or drive slowly is fallen the incredible information filtering of blocking up or walk or drive slowly, and will be sent to said weighted value computing module through the transport information of filtering.

The said insincere information filtering module 603 of blocking up or walk or drive slowly can comprise:

Through the Time Calculation submodule, be used to calculate passing through the time of each processing unit;

Filter submodule, be used for more said time and the predetermined threshold value relation passed through, filter out said through the Traffic Information of time less than said predetermined threshold value.

Wherein, calculating a kind of concrete implementation of the time of passing through of each processing unit can be:

That is to say, processing unit be with a road equidirectional adjacent two be between the data cell of unimpeded state, state is the data cell of blocking up and walking or drive slowly and merges and obtain.

It is thus clear that; For this incredible information of blocking up or walking or drive slowly promptly very of short duration block up or jogging information releases, not only taken the releasing resources of RDS, little to user's guiding value; Sometimes even can mislead the user; Therefore, comprise further in the embodiment of the invention that from traffic behavior be the functional module of the transport information of blocking up or walking or drive slowly the incredible information filtering of blocking up or walk or drive slowly being fallen, can further improve the validity of RDS distributing data.

Referring to Fig. 8, the wireless Data Broadcasting System transport information distribution apparatus that the embodiment of the invention provides can further include:

Changed transport information acquisition module 604, being used for obtaining published data, to concentrate traffic behavior be to block up or jogging and current each Traffic Information are the unimpeded Traffic Information of change.

Accordingly, referring to Fig. 9, said ordering release module 602 comprises:

Traffic flow information ordering submodule 901 is used for said each Traffic Information is sorted by said important level weighted value;

Issue submodule 902 is used for the said Traffic Information that changed is issued through RDS issue passage by preset separately issue amount with each Traffic Information through said ordering in the lump.

Further, referring to Figure 10, said ordering release module 602 also comprises:

Change Traffic Information ordering submodule 903, be used for balanced each item cancellation evaluation index of considering, calculated each said important level weighted value that has changed Traffic Information; And the said Traffic Information that changed sorted by said important level weighted value;

Accordingly, said issue submodule 902 specifically is used for the said Traffic Information that changed through ordering is issued through RDS issue passage by preset separately issue amount with said current each Traffic Information through ordering in the lump.

Each item cancellation evaluation index comprises category of roads, cancellation event class and cancellation time in the embodiment of the invention; Accordingly; Category of roads, cancellation event class and cancellation time are considered in said equilibrium, calculate each said concrete implementation that has changed the important level weighted value of Traffic Information and can be:

Respectively according to the said cancellation time of having changed the category of roads of Traffic Information, current cancellation event class and current highway section, obtain each category of roads weights that changed Traffic Information, cancellation event class weights and cancellation time weights earlier;

Calculate the product of said category of roads weights, cancellation event class weights and cancellation time weights again, obtain each said important level weighted value that has changed Traffic Information.

Wherein, calculating the concrete implementation of the cancellation time in said highway section can be:

Calculate published data and concentrate the time of pass through in said highway section and the difference of transmitting time, obtain the cancellation time in said highway section; Said transmitting time is the issuing time of said section traffic information and the time interval between the current time.

Further again, referring to Figure 11, said ordering release module 602 also comprises:

State updating submodule 904; After being used for said issue submodule 902 and issuing, published data concentrate the said published data of deletion concentrate traffic behavior be block up or jogging and current each Traffic Information in be unimpeded Traffic Information, and; Judge the information whether published data is concentrated has with each Traffic Information same road segment of current issue; If have, then concentrate the information in said highway section to replace with the transport information in the said highway section of current issue published data, if do not have; Concentrating the Traffic Information of the current issue that does not have to add published data to published data concentrates, obtains new published data collection.

It is thus clear that; The embodiment of the invention also further comprises utilizes RDS issue passage real-time release traffic behavior to change to the functional module of unimpeded Traffic Information by blocking up or walking or drive slowly; To provide more navigation there are the data of guiding value, further improve user experience; Further again; The embodiment of the invention can also balancedly be considered each item cancellation evaluation index, calculates each said important level weighted value that has changed Traffic Information, and it is sorted; By ordering order issue from high to low, with the validity of further raising RDS distributing data.

Need to prove; It will be understood by those skilled in the art that in the practical application, in embodiments of the present invention; Usually also comprise and be used to judge that category of roads is to preestablish the category of roads of not participating in issuing; With its correlation function module that filters out, the weighted value computing module starts balanced each item condition of road surface evaluation index of considering to filtered data again, calculates traffic behavior and be the operation of the important level weighted value of each Traffic Information that blocks up or walk or drive slowly.Like this, can need not to waste the RDS releasing resources, improve the validity of RDS distributing data so that the data of issue more are added with guiding value.Certainly; In the practical application; Also can not carry out the step that the predefined corresponding transport information of category of roads of not participating in issuing is filtered out, consider each item condition of road surface evaluation index in equilibrium, when calculating the important level weighted value of each Traffic Information; Because the category of roads of these Traffic Informations is very low; The balanced important level weighted value that obtains after considering is very little usually, also maybe be too little when RDS issue owing to the important level weighted value, and the RDS releasing resources is limited and be not published away.

Need to prove that also the principle of work and the processing procedure of each functional module in this apparatus embodiments or each functional unit can repeat no more referring to the associated description among the said method embodiment here.

Need to prove; In this article; Term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability; Thereby make to comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Under the situation that do not having much more more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises said key element and also have other identical element.

One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to accomplish through program, described program can be stored in an embodied on computer readable and preserve in the medium.Described preservation medium, as: ROM/RAM, magnetic disc, CD etc.

More than to wireless Data Broadcasting System transport information dissemination method provided by the invention and equipment; Carried out detailed introduction; This paper has used concrete example principle of the present invention and embodiment has been set forth, and the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for persons skilled in the art, according to thought of the present invention, part all can change on embodiment and range of application.In sum, this description should not be construed as limitation of the present invention.

Claims

1. a wireless Data Broadcasting System transport information dissemination method is characterized in that, comprising:

2. method according to claim 1 is characterized in that, said balanced each item condition of road surface evaluation index of considering, and the important level weighted value that calculates traffic behavior and be each Traffic Information that blocks up or walk or drive slowly comprises:

Obtain the condition of road surface evaluation index weights that traffic behavior is each road of blocking up or walking or drive slowly according to current each Traffic Information;

Calculate the product of each item condition of road surface evaluation index weights of said road, obtain traffic behavior and be the important level weighted value of each Traffic Information of blocking up or walking or drive slowly.

3. method according to claim 2; It is characterized in that; Said each item condition of road surface evaluation index comprises category of roads, event class and through the time, and said to obtain traffic behavior according to current each Traffic Information be that the condition of road surface evaluation index of each road of blocking up or walking or drive slowly comprises:

4. method according to claim 3 is characterized in that, calculates the said time of passing through of blocking up or walking or drive slowly the highway section to comprise:

5. according to each described method of claim 1-4, it is characterized in that said method also comprises:

From traffic behavior is the transport information of blocking up or walking or drive slowly the incredible information filtering of blocking up or walk or drive slowly to be fallen; Again each Traffic Information after filtering is carried out said balanced each item condition of road surface evaluation index of considering, calculate traffic behavior and be the step of the important level weighted value of each Traffic Information that blocks up or walk or drive slowly.

6. method according to claim 5 is characterized in that, said is the transport information of blocking up or walking or drive slowly the incredible information filtering of blocking up or walk or drive slowly to be substitute to draw together from traffic behavior:

Calculate passing through the time of each processing unit;

More said through time and predetermined threshold value relation, filter out said through the Traffic Information of time less than said predetermined threshold value.

7. method according to claim 6 is characterized in that, the time of passing through of said each processing unit of calculating comprises:

8. according to each described method of claim 1-4, it is characterized in that said method also comprises:

Obtain published data concentrate traffic behavior be block up or jogging and current each Traffic Information in be the unimpeded Traffic Information of change, issue through RDS issue passage in the lump by preset separately issue amount with each Traffic Information through said ordering.

9. method according to claim 8 is characterized in that, said with issue through RDS issue passage in the lump by preset separately issue amount through each Traffic Information of said ordering before also comprise:

Balanced consideration each item cancellation evaluation index calculates each said important level weighted value that has changed Traffic Information;

The said Traffic Information that changed is sorted by said important level weighted value.

10. method according to claim 9 is characterized in that, said balanced each item cancellation evaluation index of considering calculates each said important level weighted value that has changed Traffic Information and comprises:

According to the said each item cancellation evaluation index that has changed Traffic Information, obtain each each item that has changed Traffic Information cancellation evaluation index weights respectively;

Calculate the product of said each item cancellation evaluation index weights, obtain each said important level weighted value that has changed Traffic Information.

11. method according to claim 10; It is characterized in that; Said each item cancellation evaluation index comprises category of roads, cancellation event class and cancellation time; Said respectively according to the said each item cancellation evaluation index that has changed Traffic Information, obtain each each item that has changed Traffic Information cancellation evaluation index weights and comprise:

According to the said cancellation time inquiry weight table that has changed category of roads, cancellation event class and the current highway section of Traffic Information, obtain each category of roads weights that changed Traffic Information, cancellation event class weights and cancellation time weights respectively.

12. method according to claim 11 is characterized in that, the cancellation time of calculating said highway section comprises:

13. method according to claim 8 is characterized in that, the said issue through RDS in the lump also comprises the state updating steps after passage is issued, and specifically comprises:

Published data concentrate the said published data of deletion concentrate traffic behavior be block up or jogging and current each Traffic Information in be unimpeded Traffic Information; And; Judge the information whether published data is concentrated has with each Traffic Information same road segment of current issue; If have, then concentrate the information in said highway section to replace with the transport information in the said highway section of current issue published data, if do not have; Concentrating the Traffic Information of the current issue that does not have to add published data to published data concentrates, obtains new published data collection.

14. a wireless Data Broadcasting System transport information distribution apparatus is characterized in that, comprising:

15. equipment according to claim 14 is characterized in that, said weighted value computing module comprises:

16. according to claim 14 or 15 described equipment, it is characterized in that, also comprise:

The insincere information filtering module of blocking up or walk or drive slowly, being used for from traffic behavior is that the transport information of blocking up or walking or drive slowly is fallen the incredible information filtering of blocking up or walk or drive slowly, and will be sent to said weighted value computing module through the transport information of filtering.

17. equipment according to claim 16 is characterized in that, the said insincere information filtering module of blocking up or walk or drive slowly comprises:

18. according to claim 14 or 15 described equipment, it is characterized in that, also comprise:

Changed the transport information acquisition module, being used for obtaining published data, to concentrate traffic behavior be to block up or jogging and current each Traffic Information are the unimpeded Traffic Information of change;

Said ordering release module comprises:

Traffic flow information ordering submodule is used for said each Traffic Information is sorted by said important level weighted value;

The issue submodule is used for the said Traffic Information that changed is issued through RDS issue passage by preset separately issue amount with each Traffic Information through said ordering in the lump.

19. equipment according to claim 18 is characterized in that, said ordering release module also comprises:

Change Traffic Information ordering submodule, be used for balanced each item cancellation evaluation index of considering, calculated each said important level weighted value that has changed Traffic Information; And the said Traffic Information that changed sorted by said important level weighted value;

Said issue submodule specifically is used for the said Traffic Information that changed through ordering is issued through RDS issue passage by preset separately issue amount with said current each Traffic Information through ordering in the lump.

20. equipment according to claim 18 is characterized in that, said ordering release module also comprises:

The state updating submodule; After being used for said issue submodule and issuing, published data concentrate the said published data of deletion concentrate traffic behavior be block up or jogging and current each Traffic Information in be unimpeded Traffic Information, and; Judge the information whether published data is concentrated has with each Traffic Information same road segment of current issue; If have, then concentrate the information in said highway section to replace with the transport information in the said highway section of current issue published data, if do not have; Concentrating the Traffic Information of the current issue that does not have to add published data to published data concentrates, obtains new published data collection.