CN103905991B

CN103905991B - A kind of position information acquisition device, traffic estimating system and method

Info

Publication number: CN103905991B
Application number: CN201210581028.XA
Authority: CN
Inventors: 杨景; 王泉; 赵婷婷
Original assignee: China Mobile Communications Group Co Ltd
Current assignee: China Mobile Communications Group Co Ltd
Priority date: 2012-12-27
Filing date: 2012-12-27
Publication date: 2017-09-15
Anticipated expiration: 2032-12-27
Also published as: CN103905991A

Abstract

The present invention provides a kind of position information acquisition device, traffic estimating system and method, wherein, the positional information acquisition method includes：During mobile communication terminal initiates active communication, the first data of the mobile communication terminal are gathered based on mobile network side location technology；The second data that the mobile communication terminal is occurred based on the paging are gathered by active paging mobile communication terminal, and based on mobile network side location technology；The step of selecting at least one from gathering first data and gathering second data according to a mode selection parameter, and control selected gathered data is in running order；The data that in running order data collection steps are collected are sent to data analysis end so that data analysis end can carry out traffic estimation based on the data received.Main the passive acquisition mode is combined collection positional information by the present invention, carries out traffic estimation.

Description

A kind of position information acquisition device, traffic estimating system and method

Technical field

The present invention relates to mobile communication and traffic information collection field, more particularly to a kind of position information acquisition device, friendship Logical situation estimating system and method.

Background technology

It is existing based on mobile communications network gather transport information scheme, according to whether needed in gatherer process produce New signal, can be divided into active traffic information collection and passive traffic information collection；According to the main body for implementing positioning, Ke Yifen For the traffic information collection based on mobile network and the traffic information collection based on mobile terminal.

Typical active traffic information collection includes the technical scheme based on Paging (paging), this to be based on Paging The precision of the technical scheme of (paging) and its real-time of information are depended on：Sample frequency, positioning precision, can be with given area Obtain number of mobile stations (i.e. sample size), frequency of updating location information of positional information etc..

And passive acquisition technique is that one or more points collects data from network, it does not produce influence to network load.

Wherein, it is necessary to be sampled to a large amount of mobile stations when gathering transport information using active scheme, Paging etc. is main Dynamic traffic information collection scheme can significantly increase network transmission load；And when gathering transport information using passive type, if traffic Congestion is serious, and speed is extremely low, and the duration of call of vehicle-mounted mobile platform is less than the time passed through in section needed for continuous two switching points, Enough switching sample sizes can not be then obtained to estimate link travel speed.

The content of the invention

It is an object of the invention to provide a kind of position information acquisition device, traffic estimating system and method, by main quilt Dynamic acquisition mode combines collection positional information, carries out traffic estimation.

To achieve these goals, the embodiments of the invention provide a kind of position information acquisition device, for for traffic shape Condition estimation provides data source, including：

First data acquisition module, during initiating active communication in mobile communication terminal, based on mobile network Side location technology gathers the first data of the mobile communication terminal；

Second data acquisition module, for determining by active paging mobile communication terminal, and based on the mobile network side Position technology gathers the second data that the mobile communication terminal is occurred based on the paging；

Selecting module, for being adopted according to a mode selection parameter from first data acquisition module and second data At least one is selected in collection module, and controls selected data acquisition module in running order；

Data transmission blocks, for by running order data collecting module collected to data be sent to data point Analyse end so that data analysis end can carry out traffic estimation based on the data received.

Wherein it is preferred to, the position information acquisition device also includes：

3rd data acquisition module, for gathering the 3rd data from the mobile communication terminal；

The data transmission blocks are additionally operable to the 3rd data of the 3rd data collecting module collected being sent to the data Analyze end so that the data analysis end can carry out traffic estimation based on the data received.

Wherein it is preferred to, the mode selection parameter is that the data analysis end group carries out traffic in the data received The traffic estimated result that situation estimation is obtained.

Wherein it is preferred to, second data acquisition module is specifically included：

Memory module, for recording a controlling of sampling parameter, while occurring corresponding to each section record on the section The mobile communication terminal list of communication event；

Section selecting module, for selecting the from upstream section of the sampled point quantity less than the first section of pre-determined threshold Two sections；

Paging module, the information for being recorded according to the memory module determines the shifting for occurring communication event in the second section Mobile communication terminal, and initiate paging to the mobile communication terminal of determination；

Data-acquisition submodule, the mobile communication terminal for being determined based on the controlling of sampling parameter acquisition is based on described Second data that paging occurs.

To achieve these goals, the embodiment of the present invention additionally provides a kind of traffic estimating system, including a position Information collecting device and an estimation unit, the position information acquisition device include：

Data transmission blocks, for the data of in running order data collecting module collected to be sent into the estimation Device；

The estimation unit obtains a traffic and estimated specifically for carrying out traffic estimation using the data received Count result.

Wherein it is preferred to, the traffic estimating system also includes：

The data transmission blocks are additionally operable to the 3rd data of the 3rd data collecting module collected being sent to the data Analyze end so that the data analysis end can carry out traffic estimation based on the communication received.

Wherein it is preferred to, the mode selection parameter is that the estimation unit carries out traffic shape based on the data received The traffic estimated result that condition estimation is obtained.

Paging module, the information for being recorded according to the memory module determines the shifting for occurring communication event in the second section Mobile communication terminal, and initiate paging to the mobile communication terminal of determination；Second section is that sampled point quantity is less than pre- gating The upstream section in the first section of limit；

Wherein it is preferred to, in described traffic estimating system, estimation unit includes：

Mapping block, for carrying out map operation to the data received, obtains the corresponding geographical location information of data point；

Computing module, for being calculated according to obtained geographical location information and the acquisition time of data, is handed over Logical situation estimated result.

Wherein it is preferred to, the mapping block is specifically included：

First pretreatment unit, for being deleted from the data received because out-of-the way position updates the data produced, is obtained To the 4th data；

Mapping submodule, for according to the position corresponding relation between mobile communications network and electronic map, by described Four data are mapped to the electronic map, obtain recording the first mapping data of the corresponding geographical location information of the 4th data；

Second pretreatment unit, for performing the non-operation that filters out of driving terminal to the described first mapping data, obtains the Two mapping data；

3rd pretreatment unit, the operation of repeated data is merged for being performed to the described second mapping data, the 3rd is obtained Map data；

The computing module according to the acquisition time of the described 3rd mapping data and the 3rd mapping data specifically for entering Row estimation, obtains traffic estimated result.

Wherein it is preferred to, described traffic estimating system also includes：

Study module, for selection result, the data acquisition according to the traffic estimated result and selecting module Relation between the data and controlling of sampling parameter of module collection carries out knowledge learning, changes the selecting module selection data and adopts Collect the alternative condition of module.

To achieve these goals, the embodiment of the present invention additionally provides a kind of positional information acquisition method, for for traffic Situation estimation provides data source, and the positional information acquisition method includes：

During mobile communication terminal initiates active communication, the movement is gathered based on mobile network side location technology First data of communication terminal；

The mobile communication is gathered by active paging mobile communication terminal, and based on mobile network side location technology The second data that terminal is occurred based on the paging；

According to a mode selection parameter from the first data of the collection and the step of second data of collection in select to Few one, and it is in running order the step of control selected gathered data；

The data that in running order gathered data step is collected are sent to data analysis end so that data analysis End can carry out traffic estimation based on the data received.

Wherein it is preferred to, the positional information acquisition method also includes：

The 3rd data are gathered from the mobile communication terminal；

The data that in running order gathered data step is collected are sent to data analysis end so that data Analysis end can carry out traffic estimation based on the data received also to be included the 3rd data of collection being sent to the number According to analysis end so that the data analysis end can carry out traffic estimation based on the data received.

Wherein it is preferred to, it is described by active paging mobile communication terminal, and based on mobile network side location technology The mobile communication terminal is gathered to specifically include based on the second data that the paging occurs：

A controlling of sampling parameter is recorded, while recording the movement that communication event occurs on the section corresponding to each section Communication terminal list；

The second section is selected from upstream section of the sampled point quantity less than the first section of pre-determined threshold；

According to the mobile communication terminal list that each section records the generation communication event on the section that corresponds to of record, It is determined that the mobile communication terminal of communication event occurs in the second section, and paging is initiated to the mobile communication terminal of determination；

Based on the controlling of sampling parameter acquisition determine mobile communication terminal occurred based on the paging described second Data.

To achieve these goals, the embodiment of the present invention additionally provides a kind of traffic condition estimation method, for a traffic Situation estimating system, the traffic condition estimation method includes：

According to a mode selection parameter from the first data of the collection and the step of second data of collection in select to It is few one, and control selected gathered data step in running order；

The data gathered according in running order gathered data step carry out traffic estimation, obtain a traffic shape Condition estimated result.

Wherein it is preferred to, described traffic condition estimation method also includes：

The 3rd data are gathered from the mobile communication terminal；

The data gathered according in running order data collection steps carry out traffic estimation, obtain traffic Situation estimated result is additionally operable to carry out traffic estimation according to the 3rd data of collection, obtains traffic estimated result.

Wherein it is preferred to, the mode selection parameter is to carry out traffic estimation based on the data collected to obtain Traffic estimated result.

The mobile communication terminal for determining to occur communication event in the second section according to the information of record, and to the movement of determination Communication terminal initiates paging；Second section is upstream section of the sampled point quantity less than the first section of pre-determined threshold；

Wherein it is preferred to, the data gathered according in running order data collection steps carry out traffic Estimation, obtains traffic estimated result and specifically includes：

Map operation is carried out to the data collected, the corresponding geographical location information of data point is obtained；

Geographical location information and the acquisition time of data according to obtaining are calculated, and obtain traffic estimation knot Really.

Wherein it is preferred to, the described pair of data collected carry out map operation, obtain the corresponding geographical position letter of data point Breath is specifically included：

Deleted from the data collected because out-of-the way position updates the data produced, obtain the 4th data；

According to the position corresponding relation between mobile communications network and electronic map, the 4th data are mapped to described Electronic map, obtains recording the first mapping data of the corresponding geographical location information of the 4th data；

Described first mapping data are performed with the operation that non-driving terminal is filtered out, the second mapping data are obtained；

Described second mapping data are performed with the operation for merging repeated data, the 3rd mapping data are obtained；

The geographical location information and the acquisition time of data that the basis is obtained are calculated, and obtain traffic estimation As a result it is specially to be estimated according to the acquisition time of the described 3rd mapping data and the 3rd mapping data, obtains traffic Estimated result.

Wherein it is preferred to, the traffic condition estimation method also includes：

According to the traffic estimated result and selection result, the data collection steps of selection gathered data step Relation between the data and controlling of sampling parameter of collection carries out knowledge learning, changes the selection of the selection data collection steps Condition.

The embodiment of the present invention have the advantages that at least one of：

The embodiment of the present invention, can combine collection positional information by the mode of main passive collection positional information, carry out Traffic is estimated；

The embodiment of the present invention, the positional information that mobile terminal is detected is blended with above-mentioned mobile network's location data, Further improve positional information sample size and its sample precision；

The embodiment of the present invention is acquired to CS domains (circuit commutative field) and ps domain (packet-switched domain) data；

The embodiment of the present invention switches collection of illustrative plates as reference using drive test for network optimization, and the handover information based on user improves customer location letter Cease estimated accuracy；

Relative to existing passive type information acquiring technology, the embodiment of the present invention avoid due on section in call or When the driving number of users of networking state is very few, cause efficiently sampling points very few, and then brought to traffic information collection precision The problem of adverse effect；

Relative to conventional active information acquiring technology, the embodiment of the present invention is solved to be difficult to obtain in the case of heavy congestion The problem of enough to switch sample size, while reducing network load and power consumption of terminal as far as possible.

The embodiment of the present invention, can be according to the traffic estimated result and selection result, the data of selecting module Relation between the data and controlling of sampling parameter of acquisition module collection carries out knowledge learning, further more New Knowledge Resource storehouse, The alternative condition of modification selection data acquisition module.

Brief description of the drawings

Fig. 1 is the structural representation of position information acquisition device provided in an embodiment of the present invention；

Fig. 2 is the schematic diagram at middle and upper reaches of embodiment of the present invention crossing；

Fig. 3 is the structural representation of traffic estimating system provided in an embodiment of the present invention；

Fig. 4 is the structural representation of estimation unit provided in an embodiment of the present invention；

Fig. 5 is the schematic diagram in the embodiment of the present invention during a kind of position data abnormal conditions；

Fig. 6 is the structural representation of the functional entity of traffic estimating system provided in an embodiment of the present invention；

Fig. 7 is the schematic flow sheet of positional information acquisition method provided in an embodiment of the present invention；

Fig. 8 is the schematic flow sheet of traffic condition estimation method provided in an embodiment of the present invention.

Embodiment

To make technical problem, technical scheme and the advantage to be solved of the embodiment of the present invention clearer, below in conjunction with attached Figure and specific embodiment are described in detail.

The embodiments of the invention provide a kind of position information acquisition device, for providing data source for traffic estimation, As shown in figure 1, the position information acquisition device includes：

In the position information acquisition device of the embodiment of the present invention, the first data acquisition module occurs logical in mobile communication terminal During the active communications such as words, short message receiving-transmitting, location updating, actively occurs above-mentioned action using mobile network's location technology acquisition terminal When the first data, now do not need mobile communication terminal and position information acquisition device to gather number by extra signal According to being consequently belonging to passive type traffic information collection；And the second data acquisition module active paging mobile communication terminal, also with Second data of mobile network's location technology acquisition terminal, now need data acquisition module to produce new signal, are consequently belonging to Active traffic information collection；Selecting module can be with specific reference to mode selection parameter from first data acquisition module and described At least one is selected in second data acquisition module, and controls selected data acquisition module in running order, that is, is passed through Main passive hybrid terminal positional information gathered data, is sent to data analysis end, carries out traffic estimation.Therefore, pass through Set suitable selection strategy to comprehensively utilize the advantage of two kinds of acquisition modes, position information acquisition device offer is provided The accuracy of data and rich.

In a particular embodiment of the present invention, the first and second data acquisition modules can be to CS domains (circuit commutative field) Any one in data and ps domain (packet-switched domain) data is acquired.

Position information acquisition device to more than is by setting suitable selection strategy to comprehensively utilize two kinds of collection sides Formula is illustrated below.

When mobile terminal A, B, C, D there occurs active communication, the first data acquisition module is positioned using mobile network Technology difference acquisition terminal A, B, C, D the first data；

Second data acquisition module promotes mobile terminal A, B, C and D (can certainly be other whole by active paging End) in response to the paging, then enable the second data acquisition module to gather end respectively based on mobile network side location technology The second data that end A, B, C and D are occurred based on the paging；

Selecting module selects the first data acquisition module at the first moment according to mode selection parameter, and ensures the first data Acquisition module is in running order；

Terminal A, B, C, D the first data are sent to data analysis end by data transmission blocks, and data analysis end can be based on The first data for receiving terminal A, B, C, D carry out traffic estimation.

Selecting module selects the second data acquisition module at the second moment according to mode selection parameter, and ensures the second data Acquisition module is in running order；

Terminal A, B, C, D the second data are sent to data analysis end by data transmission blocks, and data analysis end can be based on The second data for receiving terminal A, B, C, D carry out traffic estimation.

First data acquisition module and the second data acquisition module are simultaneously in running order, by the of terminal A, B, C, D One data and the second data are sent to data analysis end and carry out traffic estimation.

Therefore, the position information acquisition device of the embodiment of the present invention can be adopted by main passive hybrid terminal positional information Collect data.

First, second data acquisition module is all based on mobile network and carries out transport information in above-mentioned information collecting device Collection, when gathering transport information based on mobile network, the position of the communication cell where terminal can only be determined, it is impossible to enter one Step determines the particular location where terminal；Meanwhile, only when terminal there occurs cell switching, it can just produce terminal location switching Information is used as switching sample information.

And the data for being used for positioning terminal can be acquired based on mobile network, while can also be based on mobile terminal certainly Body carries out the collection of location data, for the data collected based on mobile network, and mobile communication terminal is based on itself It is more accurate that the GPS module that possesses position obtained location data, therefore in order to improve the precision of positioning, the present invention is specific The 3rd data of locating module collection of the mobile terminal based on itself are further obtained in embodiment there is provided giving data analysis end, Enable data of the data analysis end based on the three types received to carry out traffic estimation, improve traffic The precision of estimated result.

Under this mode, the position information acquisition device described in the embodiment of the present invention also includes：

The 3rd data that mobile communication terminal is gathered are likewise transmitted to data analysis end to carry out traffic estimation, can To improve the accuracy of traffic estimation.It is illustrated below.

Mobile terminal A can gather more specific location information as the 3rd data, positional information now according to GPS location Can be smaller than gathering communication where transport information can only determine terminal A by mobile network specific to the section where terminal A Area is much more accurate；

Terminal A is in same communication cell simultaneously, when driving to the second section by the first section, by GPS location with regard to energy Terminal A position handover information is enough collected, to carry out traffic estimation, but transport information is being gathered based on mobile network When, cell switching does not occur for terminal A, and the position handover information for causing data analysis end to receive is fewer than what is actually occurred.

Therefore, data analysis end group carries out traffic estimation in the 3rd data received, can avoid what is collected The position handover information that accuracy of information is not high, collect than actually occur it is few the problem of, improve traffic estimation standard True property.Equally, if data analysis end receive simultaneously same terminal based on mobile network gather and based on terminal gather , should be to be defined based on the information that terminal is gathered during positional information.

In above-mentioned information collecting device, it is preferable that the mode selection parameter is the data analysis end group in reception To data carry out the obtained traffic estimated result of traffic estimation.

Data analysis end group carries out traffic estimation in the data received and obtains traffic estimated result, that is, is based on The data received determine mode selection parameter, and position information acquisition device adopts further according to mode selection parameter from the first data Select at least one in running order in collection module, the second data acquisition module.

When the first data acquisition module is in running order, the second data acquisition module is switched in running order Condition is：

The 85% of minimum sampling number N is given when the reasons such as traffic congestion cause sampling number to be less than.(it is only to lift here Example)

The handover mechanism can be overcome because the driving number of users in call or networking state on section is very few, so that Efficiently sampling points are very few, and then to the adverse effect that traffic information collection precision is brought, it is difficult in the case of heavy congestion is solved To obtain tried one's best while switching sample size problem enough reduction network load and power consumption of terminal.Wherein, minimum sampled point is given Number is related to the congestion level in category of roads, number of lanes, section.Section is in required when freestream conditionses or congestion status Sampling number is less, when section is between free flow and congestion status, and required sampling number is higher.Run initial phase, The given minimum sampling number N in each section can be configured according to historical information.In operation, historical information can be based on And the traffic state information of previous moment is modified to giving minimum sampling number N.

The embodiment of the present invention is relative to existing passive type information acquiring technology, it is to avoid due on section in call or When the driving number of users of networking state is very few, cause efficiently sampling points very few, and then brought to traffic information collection precision The problem of adverse effect；Relative to conventional active information acquiring technology, the embodiment of the present invention is solved in heavy congestion situation Under the problem of be difficult to obtain switching sample size enough, while reducing network load and power consumption of terminal as far as possible.

It is assumed that described information harvester is under default setting, the first data acquisition module is in running order, data point Analysis end carries out traffic estimation according to the first data received, when the driving in call or networking state on the first section When number of users is very few, now because sampled point is very few, it is impossible to accurately reflect traffic, now selecting module is selected according to pattern Selecting parameter can select to make the second data acquisition module in running order, and mobile communication of the active paging on the first section is whole The second data collected are sent to data analysis end by end, increase sampled point number, thus effectively prevent effective sampling points The very few adverse effect brought to traffic information collection precision of number.

Equally, it is assumed that the first data acquisition module is in running order, when traffic has heavy congestion, now go Car terminal is substantially at fixed position, will not carry out cell switching, therefore, it is difficult to obtain enough switching sample sizes, now selects Module can select to make the second data acquisition module in running order according to mode selection parameter, pass through active paging mobile communication Terminal is sent to data analysis end to gather enough data so that data analysis end can be analyzed according to enough sampled points Accurate analysis result is obtained, is solved the problem of being difficult to obtain switching sample size enough in the case of heavy congestion.

Equally, it is assumed that the second data acquisition module is in running order, now traffic ratio smoothly, and the terminal in road network Quantity enough, now, can obtain enough samples by the first data acquisition module and be used for data analysis end, if now Second data acquisition module is in running order, then selecting module can then select the first data acquisition module, and control first to count According to acquisition module the second data acquisition module of in running order rear closing, to reduce network load and power consumption of terminal.

Certainly, the strategy of the selecting module selection data acquisition module of the above is merely illustrative, the embodiment of the present invention It is not limited to the data acquisition selection strategy of the above.

Above-mentioned position information acquisition device, when the second data acquisition module is in running order, if a certain section On communication terminal it is less, by active paging mobile communication terminal, obtained sampled point just it is less, can not now accurately reflect Traffic, there is provided a kind of preferred implementation side of second data acquisition module for this problem for the embodiment of the present invention Formula, is specifically included：

When up-sampling point in the first section is less than pre-determined threshold, the information recorded according to memory module is determined in the first section Upstream section, i.e. the second section occur communication event mobile communication terminal, and to determination mobile communication terminal initiate seek Exhale, the second data that the terminal on the second section of collection occurs.By safeguarding the switching collection of illustrative plates that network optimization drive test is obtained, to cut The estimation changed a little provides foundation.Upstream section can be comprising single order to three rank upstream sections, and default condition is assumed to single order upstream Section, if single order upstream section treats that Paging numbers of users count sum still less than the minimum sampling in this section with this section effective sample Points, then extend to second order by upstream road section scope.Second order upstream section is extended for the situation in three rank upstream sections, and the rest may be inferred.

Certainly, in a particular embodiment of the present invention, section selecting module is also based on historical traffic data and enters walking along the street The section selecting module is specifically included under the selection of section, this mode：

Memory cell, counts obtained each section according to historical traffic data and corresponds to not entering in the same time for storing Choose trip section；

Section selecting unit, for it is determined that behind current time and the first section, selection corresponds to current with the first section The selected upstream section at moment is used as second section.

This is illustrated below.

As shown in Fig. 2 section A single order upstream section is section B1, B2 and B3, section A second order upstream section is road Section C1 and C2；It is assumed that according to historical traffic data it can be found that 8 points in the morning, the wagon flow 60% for flowing into section A comes from section B1, the wagon flow 30% for flowing into section A comes from section B2, and the wagon flow 10% for flowing into section A comes from section B3, and 6 points at night, stream The wagon flow 60% for entering section A comes from section B3, and the wagon flow 30% for flowing into section A comes from section B2, flows into section A wagon flow 10% From section B1.

It is to obtain enough data by active paging mobile communication terminal to supply in view of the second data acquisition module Analyzed at data analysis end, it is assumed that the quantity that section may be selected is determined, then should now consider that those vehicles can be relatively more Target road section A upstream section can be flowed into, is analyzed with ensureing to collect enough data for analytical ends, under this mode, foundation The selected upstream section that each section that historical traffic data statistics is obtained corresponds to not in the same time is as follows：

8 points in the morning, the selected section corresponding to section A is section B1, and 6 points at night, corresponding to the selected of section A Section is section B3.

Certainly, it is only to illustrate above, the embodiment of the present invention can be analyzed using historical traffic data, obtain various Different statistics, then selects each section to correspond to selected upstream section not in the same time i.e. using statistics Can, it is and for example following tactful.

It is assumed that 8 points in the morning, sampled point on current section A and destination sample point only poor 5%, now relatively good mode Be selection section B3 as second section come it is proper, it can either collect enough sampled points, be unlikely to again by Excessively cause network burden overweight in sampled point.

Therefore, the embodiment of the present invention does not limit specific upstream Model choices strategy, as long as under different situations, Suitable upstream road can be selected according to historical traffic data so that acquisition module can collect enough data for dividing Analysis end is used, you can for the embodiment of the present invention.

In upstream section of the embodiment of the present invention by gathering the few section of sampled point, occurs the mobile communication of communication event Second data of terminal ensure that the quantity of sampled point reaches pre-determined threshold, it is ensured that the accuracy of traffic estimation.Citing It is described as follows.

As shown in Fig. 2 section A upstream section is section B1, B2 and B3, section B2 upstream section for section C1 and C2, therefore, section A single order upstream section is section B 1, B2 and B3, and second order upstream section is section C1 and C2.

If the only terminal L of communication event terminal occurs on the A of section, because communication terminal is less, sampled point is caused to be less than Pre-determined threshold, each section that corresponds to that can be now recorded according to memory module records the generation communication event on the section Mobile communication terminal list, determines that the mobile communication terminal of communication event occurs on section A single order upstream section B1, B2 and B3 M, N, Z, and paging is initiated to terminal M, N, Z, determine terminal M, N, Z the second data.

Now, if sampled point number reaches pre-determined threshold, mmk terminal L, M, N, Z the second data all send data analysis End.

Now, if sampled point number is still less than pre-determined threshold, continue to determine to send out on section A second order upstream section C1 and C2 The mobile communication terminal of raw communication event, will occur the second number of the terminal of communication event on section A, B1, B2, B3, C1 and C2 According to being sent to data analysis end.

By that analogy.

The course of work of above-mentioned position information acquisition device is exemplified below.

Position information acquisition device is in running order for the first data acquisition module under default setting, driving terminal A Active communication is initiated at the T1 moment, now position information acquisition device determines that terminal A just locates based on mobile network side location technology In communication cell L, the terminal A positional informations for being in communication cell L are sent to data analysis end by data transmission blocks.

When traffic congestion causes terminal A finishing above-mentioned active communication at the T2 moment, still in the L of communication cell, this When positional information of first data collecting module collected less than terminal A, give minimum sampling number N when sampling number is less than When 85%, position information acquisition device, which is switched to, makes the second data acquisition module in running order, active paging mobile communication Terminal, now position information acquisition device determine that terminal A is in communication cell L, data based on mobile network side location technology The terminal A positional informations for being in communication cell X are sent to data analysis end by sending module.

Said process is all based on mobile network side location technology and obtains terminal positional information, position information acquisition device More specific location information at T1, T2 moment can be determined according to GPS location by terminal A, T1 moment terminals A is located at communication cell L The first section, T2 moment terminals A be located at communication cell L the second section, the positional information gathered according to terminal is equally sent out It is sent to data analysis end.The data that now data analysis end should be gathered by terminal are defined, and carry out traffic behavior estimation.

A kind of traffic estimating system of the embodiment of the present invention, as shown in figure 3, including a position information acquisition device with And an estimation unit, wherein, the position information acquisition device includes：

Memory module, for recording a controlling of sampling parameter, while occurring corresponding to each section record on the section The mobile communication terminal list of communication event,；

Wherein it is preferred to, in described traffic estimating system, the estimation unit, as shown in figure 4, including：

In above-mentioned traffic estimating system, the data received are mapped on map by estimation unit, definitely Positional information is managed, is calculated according to geographical location information and the acquisition time of data and obtains traffic estimated result.Wherein connect Receive except positional information in data, the event information that each interface is collected also includes, and occurs the Attach events in Gb Interface, Detach events, and CS Paging；Occur the Detach events in IuCS interfaces, CS Paging events, SMS mobile- Originated events, SMSmobile-terminated events, Call Setup events, Connect Ack events, and Disconnect events；And generation is in the Attach events of IuPS interfaces, Detach events, and PS paging events.

The embodiment of the present invention additionally provides the mapping block preferred implementation, specifically in above-mentioned estimation unit Including：

After the gathered data received, first the position data collected should be screened, the system according to historical data The relevant knowledge collected in meter distribution character and knowledge base, rejects the position data with anomalous variation pattern, exception here Data refer to the position data of the short time interior terminal in same position frequent switching, or the position data inversely moved.Citing It is described as follows.

Terminal A position data display terminal A within a short period of time, in same position L frequent switchings, at this moment terminal A Position data just belongs to abnormal data, should be deleted from the data received.

In addition, as shown in figure 5, when terminal A is in two cells L1 and L2 intersection, according to two cells received Signal intensity determine cell where terminal A, it is assumed that terminal A is in cell L1, the T2 moment at the T1 moment and is in cell L2, i.e., Terminal of driving a vehicle A direction, to the T2 moment, is to point to cell L2, but other-end B, C, D etc. in T1 to T2 by cell L1 in T1 Carve, be that cell L1 is pointed to by cell L2, now terminal A position data falls within abnormal data.

4th data are matched with map and road network topology structural information, and according to the statistical Boot of historical data 4th data are mapped to electronic map, differentiation main and side road are should also be noted that during mapping by the relevant knowledge collected in property and knowledge base. The terminal on the common parallel such as main and side road section can be made a distinction according to main and side road position data changing pattern.

Because above-mentioned estimation unit is to carry out traffic estimation, the data collected according to the position data of driving terminal In except have driving terminal position data, further comprises it is non-driving terminal position data, for instance in road peripheral cell In terminal, the terminal that pedestrian, electric car, motorcycle etc. are loaded with.Therefore, estimation unit provided in an embodiment of the present invention is to institute State the first mapping data and filter out the non-position data that collects of driving terminal, can according to historical data statistical distribution characteristic and The relevant knowledge collected in knowledge base, such as non-driving location data of terminals changing pattern, progress, which is filtered out, obtains the second mapping number According to.

Now, in addition it is also necessary to further the described second mapping data are performed with the operation for merging repeated data, the 3rd is obtained and reflects Penetrate data.When the transport information gathered based on mobile network is repeated with the transport information based on mobile terminal collection, due to base The information gathered in terminal is more accurate, so retaining the transport information gathered based on mobile terminal.By the way that mobile terminal is examined The position data measured is blended with mobile network's location data, while active data acquisition module and passive type data acquisition The position data that module is collected complements one another, and improves the precision of traffic parameter estimation.

Computing module according to the acquisition time of the described 3rd mapping data and the 3rd mapping data specifically for being estimated Meter, obtains traffic estimated result.The core algorithm that can be estimated according to traffic state data, with reference to the position gathered in real time The related law of data, route matching result and the accumulation of knowledge resource storehouse, passes through Probabilistic Principal Component Analysis (Probabilistic Principal Component Analysis, PPCA) algorithm estimation traffic estimated result.Traffic is obtained using the algorithm The advantage of situation estimated result is to the statistical distribution characteristic and periphery road section traffic volume state of traffic state data to be estimated The influence of the traffic behavior in section is accounted for simultaneously.

In order to which the relation to traffic state data changing rule and its between the collection of positional information carries out knowledge learning, Preferably, described traffic estimating system also includes：

The particular content that study module carries out knowledge learning includes：

1. pair traffic state data changing rule and its relation between the drainage pattern and parameter setting of position data Carry out knowledge learning；

2. pair frequent set analysis in upstream section；

It can be estimated by study module for traffic state data and main passively collection switching control and parameter setting are provided Foundation；Selection for alternative terminal in active data acquisition provides foundation；Offer foundation is filtered out for non-driving terminal；For exception Data filter out offer foundation.It is possible to further the knowledge Input knowledge resources bank for learning study module, realize that correlation is known The accumulation of knowledge and constantly improve.

Certainly, above-mentioned study module can be separately provided, can also be separated into multiple submodule be distributed in it is above-mentioned each In individual module, unit is provided with the memory cell set in section selecting module as the aforementioned.

The embodiment of the present invention additionally provides a kind of functional entity of traffic estimating system, as shown in fig. 6, including：

Placement data acquisition module, for providing data source for traffic estimation；

Data analysis module, the data for being gathered according to placement data acquisition module carry out traffic estimation；

Data resource library module, is made up of the knowledge information of structuring, is traffic state data estimation and main passive collection Switching control and the foundation of parameter setting, operator or third party technology supporting by this motion traffic information acquisition system Provider is managed and safeguards, including：Upstream section Frequent Set analysis result, the shifting that pedestrian, electric car, motorcycle etc. are loaded with The position data pattern of dynamic platform, the anomalous variation pattern of position data, traffic state data changing rule and its and position data Drainage pattern and parameter setting between relation etc..

In the functional entity of above-mentioned traffic estimating system, placement data acquisition module is specifically included：

Mobile terminal data acquisition module, i.e., the 3rd data acquisition module mentioned before, for completing based on mobile whole 3rd data acquisition at end；

Mobile network data acquisition module, for completing the placement data acquisition based on mobile network, is specifically included：

Passive type data acquisition module, i.e., the first data acquisition module mentioned before, for being sent out in mobile communication terminal During playing active communication, such as occurring call, short message receiving-transmitting, location updating during communication event, based on mobile network side Location technology gathers the first data of the mobile communication terminal；

Active data acquisition module, i.e., the second data acquisition module mentioned before, for being moved by active paging Communication terminal, and gather the mobile communication terminal is occurred based on the paging the based on mobile network side location technology Two data, mainly carry out forcing passback positioning in the insufficient region of fractional sample amount, difficult in the case of heavy congestion is solved To obtain tried one's best while switching sample size problem enough reduction network load and power consumption of terminal；

Data acquisition scheme selecting module and data acquisition parameters setup module, i.e., the selecting module mentioned before are used for At least one is selected from first data acquisition module and second data acquisition module according to a mode selection parameter, And control selected data acquisition module in running order, it is specially to be obtained according to the estimation of traffic state data estimation module Last moment traffic state information (as shown in information flow 101), knowledge base accumulation traffic state data changing rule and Its relation between the drainage pattern and its parameter setting of position data, implements active, passive type data acquisition scheme and cuts Change control and data acquisition parameters are set.

Wherein, active data acquisition module also includes：

Upstream section list maintenance module and alternative terminal list maintenance module, for recording a controlling of sampling parameter, together When corresponding to each section record on the section occur communication event mobile communication terminal list, specially safeguard active The list of upstream section and alternative terminal list required for data acquisition, its middle and upper reaches section list are upper according to knowledge base accumulation Trip section Frequent Set is updated, alternative terminal list according to the section in the list of upstream section occur call, short message receiving-transmitting, The terminal generation of the communication events such as location updating.

In the functional entity of above-mentioned traffic estimating system, wherein data analysis module is specifically included：

Computing module, for passing through Probabilistic Principal Component Analysis (Probabilistic Principal ComponentAnalysis, PPCA) algorithm estimates the estimate of traffic state data, the advantage of the algorithm is to traffic shape Influence of the statistical distribution characteristic and periphery road section traffic volume state of state parameter to the traffic behavior in section to be estimated is examined simultaneously Consider；

Knowledge learning module, for the drainage pattern and parameter to traffic state data changing rule and its with position data Relation between setting carries out knowledge learning, is that traffic state data estimation and main passive collection switching control and parameter setting are carried For foundation etc., the knowledge Input knowledge resources bank that the module learns realizes accumulation and the constantly improve of relevant knowledge；

Data compressing module.

Mapping block therein includes：

3rd pretreatment unit, the operation of repeated data is merged for being performed to the described second mapping data, the 3rd is obtained Map data.

Functional entity provided in an embodiment of the present invention is handed over by main passive hybrid terminal positional information gathered data Logical situation estimation；CS domains (circuit commutative field) and ps domain (packet-switched domain) data can be acquired, pass through core net Gb Interface, IuPS interfaces between SGSN and BSC, and the IuCS interface acquisition terminals between MSC and RNC positional information；With Drive test for network optimization switching collection of illustrative plates is reference, and the handover information based on user improves customer position information estimated accuracy；Given for satisfaction The region of fixed condition switches to the acquisition scheme that transport information is obtained by active Paging terminals, overcomes due to being on section The driving number of users of call or networking state is very few, so that efficiently sampling points are very few, and then to traffic information collection precision The adverse effect brought, is difficult to obtain enough switching sample sizes, while reduce as far as possible in the case of heavy congestion is solved the problems, such as Network load and power consumption of terminal；The positional information that mobile terminal is detected is blended with above-mentioned mobile network's location data, is entered One step improves positional information sample size and its sample precision；The user's consecutive variations collected based on mobile network and mobile terminal Positional information and route matching result, knowledge based resources bank estimated section traffic flow modes parameter, and to traffic State parameter changing rule and its relation between the collection of positional information carry out knowledge learning, further more New Knowledge Resource Storehouse；Meanwhile, according to estimating speed information, the abnormal traffic state in section is detected, and then estimates according to traffic state data The knowledge accumulation of meter and its relation between the collection of positional information, updates minimum sampling number, the sample frequency in section etc. Parameter setting.

The embodiment of the present invention additionally provides a kind of positional information acquisition method, for providing data for traffic estimation Source, as shown in fig. 7, the positional information acquisition method includes：

Step 71, during mobile communication terminal initiates active communication, based on the collection of mobile network side location technology First data of the mobile communication terminal；

Step 72, by active paging mobile communication terminal, and it is described based on the collection of mobile network side location technology The second data that mobile communication terminal is occurred based on the paging；

Step 73, according to a mode selection parameter from gather first data and gathering selected in second data to Few one, and it is in running order the step of control selected gathered data；

Step 74, the data in running order data collection steps collected are sent to data analysis end so that Data analysis end can carry out traffic estimation based on the data received.

The 3rd data are gathered from the mobile communication terminal；

The data that in running order data collection steps are collected are sent to data analysis end so that data Analysis end can carry out traffic estimation based on the data received also to be included the 3rd data of collection being sent to the number According to analysis end so that the data analysis end can carry out traffic estimation based on the data received.

According to the mobile communication terminal list that each section records the generation communication event on the section that corresponds to of record, It is determined that the mobile communication terminal of communication event occurs in the second section, and paging is initiated to the mobile communication terminal of determination；It is described Second section is upstream section of the sampled point quantity less than the first section of pre-determined threshold；

To achieve these goals, the embodiment of the present invention additionally provides a kind of traffic condition estimation method, for a traffic Situation estimating system, as shown in figure 8, the traffic condition estimation method includes：

Step 81, during mobile communication terminal initiates active communication, based on the collection of mobile network side location technology First data of the mobile communication terminal；

Step 82, by active paging mobile communication terminal, and it is described based on the collection of mobile network side location technology The second data that mobile communication terminal is occurred based on the paging；

Step 83, in the step of according to a mode selection parameter from the first data of the collection and second data of collection At least one is selected, and controls selected gathered data step in running order；

Step 84, the data gathered according in running order gathered data step carry out traffic estimation, obtain One traffic estimated result.

The 3rd data are gathered from the mobile communication terminal；

A controlling of sampling parameter is recorded, while recording the movement that communication event occurs on the section corresponding to each section Communication terminal list,；

Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims

1. a kind of position information acquisition device, for providing data source for traffic estimation, it is characterised in that the position letter Breath harvester includes：

First data acquisition module, it is fixed based on mobile network side during initiating active communication in mobile communication terminal Position technology gathers the first data of the mobile communication terminal；

Second data acquisition module, for positioning skill by active paging mobile communication terminal, and based on the mobile network side Art gathers the second data that the mobile communication terminal is occurred based on the paging；Specifically include：Memory module, for recording one Controlling of sampling parameter, while recording the mobile communication terminal list that communication event occurs on the section corresponding to each section； Section selecting module, for selecting the second section from upstream section of the sampled point quantity less than the first section of pre-determined threshold； Paging module, the information for being recorded according to the memory module determines that the mobile communication for occurring communication event in the second section is whole End, and initiate paging to the mobile communication terminal of determination；Data-acquisition submodule, for based on the controlling of sampling parameter acquisition Second data that the mobile communication terminal of determination is occurred based on the paging；

Selecting module, for according to a mode selection parameter from first data acquisition module and second data acquisition module At least one is selected in block, and controls selected data acquisition module in running order；

Data transmission blocks, for by running order data collecting module collected to data be sent to data analysis End so that data analysis end can carry out traffic estimation based on the data received.

2. position information acquisition device according to claim 1, it is characterised in that also include：

The data transmission blocks are additionally operable to the 3rd data of the 3rd data collecting module collected being sent to the data analysis End so that the data analysis end can carry out traffic estimation based on the data received.

3. position information acquisition device according to claim 1, it is characterised in that the mode selection parameter is the number According to analysis end group the traffic estimated result that traffic estimation is obtained is carried out in the data received.

4. position information acquisition device according to claim 1, it is characterised in that the section selecting module is specifically wrapped Include：

Memory cell, for store according to historical traffic data count obtained each section correspond to not in the same time enter to choose Swim section；

Section selecting unit, for it is determined that behind current time and the first section, selection corresponds to current time with the first section Selected upstream section be used as second section.

5. a kind of traffic estimating system, including a position information acquisition device and an estimation unit, it is characterised in that institute Stating position information acquisition device includes：

Data transmission blocks, are filled for the data of in running order data collecting module collected to be sent into the estimation Put；

The estimation unit obtains traffic estimation knot specifically for carrying out traffic estimation using the data received Really.

6. traffic estimating system according to claim 5, it is characterised in that also include：

The data transmission blocks, are additionally operable to the 3rd data of the 3rd data collecting module collected being sent to data analysis end, The data analysis end is enabled to carry out traffic estimation based on the communication received.

7. traffic estimating system according to claim 5, it is characterised in that the mode selection parameter is estimated to be described Counter device carries out the traffic estimated result that traffic estimation is obtained based on the data received.

8. traffic estimating system according to claim 5, it is characterised in that the section selecting module is specifically wrapped Include：

9. the traffic estimating system according to any one in claim 5-8, it is characterised in that the estimation unit Including：

Computing module, for being calculated according to obtained geographical location information and the acquisition time of data, obtains traffic shape Condition estimated result.

10. traffic estimating system according to claim 9, it is characterised in that the mapping block is specifically included：

First pretreatment unit, for being deleted from the data received because out-of-the way position updates the data produced, obtains the Four data；

Mapping submodule, for according to the position corresponding relation between mobile communications network and electronic map, by the described 4th number According to the electronic map is mapped to, obtain recording the first mapping data of the corresponding geographical location information of the 4th data；

Second pretreatment unit, for performing the operation that non-driving terminal is filtered out to the described first mapping data, obtains second and reflects Penetrate data；

3rd pretreatment unit, the operation of repeated data is merged for being performed to the described second mapping data, the 3rd mapping is obtained Data；

The computing module according to the acquisition time of the described 3rd mapping data and the 3rd mapping data specifically for being estimated Meter, obtains traffic estimated result.

11. traffic estimating system according to claim 9, it is characterised in that also include：

Study module, for selection result, the data acquisition module according to the traffic estimated result and selecting module Relation between the data and controlling of sampling parameter of collection carries out knowledge learning, changes the selecting module selection data acquisition module The alternative condition of block.

12. a kind of positional information acquisition method, for providing data source for traffic estimation, it is characterised in that the position Information collecting method includes：

During mobile communication terminal initiates active communication, the mobile communication is gathered based on mobile network side location technology First data of terminal；

The mobile communication terminal is gathered by active paging mobile communication terminal, and based on mobile network side location technology The second data occurred based on the paging；Specifically include：A controlling of sampling parameter is recorded, while corresponding to each section record The mobile communication terminal list of communication event occurs on the section；From sampled point quantity less than the first section of pre-determined threshold The second section is selected in the section of upstream；According to the shifting that each section records the generation communication event on the section that corresponds to of record Mobile communication terminal list, it is determined that the mobile communication terminal of communication event occurs in the second section, and it is whole to the mobile communication of determination Initiate paging in end；The mobile communication terminal determined based on the controlling of sampling parameter acquisition occurred based on the paging described the Two data；

At least one is selected in the step of according to a mode selection parameter from the first data of the collection and second data of collection It is individual and in running order the step of control selected gathered data；

The data that in running order gathered data step is collected are sent to data analysis end so that data analysis end energy It is enough to carry out traffic estimation based on the data received.

13. positional information acquisition method according to claim 12, it is characterised in that also include：

The 3rd data are gathered from the mobile communication terminal；

The data that in running order gathered data step is collected are sent to data analysis end so that data analysis End can carry out traffic estimation based on the data received also to be included the 3rd data of collection being sent to the data point Analyse end so that the data analysis end can carry out traffic estimation based on the data received.

14. positional information acquisition method according to claim 12, it is characterised in that the mode selection parameter is described Data analysis end group carries out the traffic estimated result that traffic estimation is obtained in the data received.

15. positional information acquisition method according to claim 12, it is characterised in that described to be less than in advance from sampled point quantity The second section is selected to specifically include in the upstream section in the first section of gating limit：

Storage counts obtained each section according to historical traffic data corresponding to selected upstream section not in the same time；

It is determined that behind current time and the first section, selection corresponds to the selected upstream section conduct at current time with the first section Second section.

16. a kind of traffic condition estimation method, for a traffic estimating system, it is characterised in that the traffic is estimated Meter method includes：

The mobile communication terminal is gathered by active paging mobile communication terminal, and based on mobile network side location technology The second data occurred based on the paging；Specifically include：A controlling of sampling parameter is recorded, while corresponding to each section record The mobile communication terminal list of communication event occurs on the section；From sampled point quantity less than the first section of pre-determined threshold The second section is selected in the section of upstream；Determine that the mobile communication for occurring communication event in the second section is whole according to the information of record End, and initiate paging to the mobile communication terminal of determination；The mobile communication terminal determined based on the controlling of sampling parameter acquisition Second data occurred based on the paging；

At least one is selected in the step of according to a mode selection parameter from the first data of the collection and second data of collection It is individual, and control selected gathered data step in running order；

The data gathered according in running order gathered data step carry out traffic estimation, obtain a traffic and estimate Count result.

17. traffic condition estimation method according to claim 16, it is characterised in that also include：

The 3rd data are gathered from the mobile communication terminal；

The data gathered according in running order data collection steps carry out traffic estimation, obtain traffic Estimated result is additionally operable to carry out traffic estimation according to the 3rd data of collection, obtains traffic estimated result.

18. traffic condition estimation method according to claim 16, it is characterised in that the mode selection parameter be based on The data collected carry out the traffic estimated result that traffic estimation is obtained.

19. traffic condition estimation method according to claim 16, it is characterised in that be less than pre- gating from sampled point quantity The second section is selected to specifically include in the upstream section in the first section of limit：

20. the traffic condition estimation method according to any one in claim 16-19, it is characterised in that the basis The data of in running order data collection steps collection carry out traffic estimation, obtain traffic estimated result specific Including：

Geographical location information and the acquisition time of data according to obtaining are calculated, and obtain traffic estimated result.

21. traffic condition estimation method according to claim 20, it is characterised in that the described pair of data collected are carried out Map operation, obtains the corresponding geographical location information of data point and specifically includes：

According to the position corresponding relation between mobile communications network and electronic map, the 4th data are mapped to the electronics Map, obtains recording the first mapping data of the corresponding geographical location information of the 4th data；

The geographical location information and the acquisition time of data that the basis is obtained are calculated, and obtain traffic estimated result Specially estimated according to the acquisition time of the described 3rd mapping data and the 3rd mapping data, obtain traffic estimation As a result.

22. traffic condition estimation method according to claim 20, it is characterised in that also include：

According to the selection result of the traffic estimated result and selection gathered data step, data collection steps collection Data and controlling of sampling parameter between relation carry out knowledge learning, change it is described selection data collection steps selector bar Part.