CN102700576B - Urban Rail Transit passenger flow monitoring method - Google Patents

Abstract

The invention discloses a kind of Urban Rail Transit passenger flow monitoring and pre-alarming method, relate to safety of urban transit technical field, comprise the following steps: S1: by the real-time passenger ticket data of predetermined period acquisition trajectory traffic route ticket selling and checking system, calculate station passenger flow volume, railroad section passenger flow volume and transfer passenger flow amount, and three kinds of passenger flow volume are stored in a database, configuration Optimization of Information Retrieval strategy; S2: draw track traffic layer on electronic chart, after described station passenger flow volume, railroad section passenger flow volume and transfer passenger flow amount are accumulated as interval passenger flow volume, draw the interval path of track traffic layer with different colors by the different passenger flow volume in each interval, according to passenger flow warning level, the extensive passenger flow early warning of reflection and degree thereof fast.Present invention achieves accurate, real-time dynamic monitoring Metro Network passenger flow situation distribution situation, effectively improve the efficiency that gauze passenger flow calculates.

Description

Urban Rail Transit passenger flow monitoring method

Technical field

The present invention relates to safety of urban transit technical field, particularly a kind of Urban Rail Transit passenger flow monitoring method.

Background technology

At present, this line of track traffic passenger flow is gathered by the entering the station of station, departures number, obtains the entering the station of station, set off passenger flow volume, and passenger flow data to be swiped the card registration by gate, and each transaction is as the accumulative number that enters the station or a departures number obtaining station of record.For the transfer passenger flow between circuit, by allocation algorithm, adjust the passenger flow volume of transfer in conjunction with key elements such as shortest path, expense, sorting ratios.Because passenger flow transaction record amount is usually very huge, data acquiring frequency is about 5 ~ 15 minutes, therefore usually adopts track traffic every day to stop the rear unified calculation of operation, generates the passenger flow statistics amount of the same day or history.Therefore, running state and the Trip distribution situation of the real-time passenger flow of gauze cannot be obtained, can not hold the dynamic passenger flow situation of Metro Network, be difficult to support for the passenger flow section that blocks up is worked out passenger flow early and discongested organization scheme.

Under Urban Rail Transit operation mode, the operation regulatory requirements meeting the multiple subject of operation of Metro Network, gauze is difficult to control center's monitored control system of single line or the management of multi-thread region mode, need to rely on passenger flow DYNAMIC DISTRIBUTION, gauze operation state is held in real time, determine passenger transportation management scheme, for the contingency management of accident provides aid decision making.

Existing passenger flow volume analysis is by adjusting fare income for financial sorting, and statistics dimension is by the time of reception after gate repeating query image data, carries out passenger flow data statistics.There is certain gap in the passenger flow volume of adding up based on time of reception and the actual passenger flow volume occurred of gauze, truly can not reflect the DYNAMIC DISTRIBUTION situation of the real-time passenger flow of gauze.The transfer passenger flow amount adjusted through allocation algorithm only counts transfer passenger flow between circuit usually, cannot accurately obtain a certain circuit in transfer stop the passenger flow volume to each station transfer of the different directions of transfer circuit.Due to passenger flow frequency acquisition be 5 minutes for the shortest interval, and can produce tens thousand of data in 5 minutes, the careful calculated amount scale being divided into the transfer passenger flow amount of each whereabouts is extremely huge.Not not in real time, passenger flow volume analysis result accurately, be difficult to the passenger flow state differentiating the distribution of each section of gauze, according to the result that existing method calculates, the distribution situation with actual passenger flow is existed certain delay, the passenger transportation management measure therefore worked out is difficult to get a desired effect.

Summary of the invention

(1) technical matters that will solve

The technical problem to be solved in the present invention is: how to monitor Urban Rail Transit passenger flow accurately and real-time.

(2) technical scheme

For solving the problems of the technologies described above, the invention provides a kind of Urban Rail Transit passenger flow monitoring method, comprising the following steps:

S1: by the real-time passenger ticket data of predetermined period acquisition trajectory traffic route ticket selling and checking system, calculates station passenger flow volume, railroad section passenger flow volume and transfer passenger flow amount, and three kinds of passenger flow volume is stored in a database;

S2: draw track traffic layer on electronic chart, after described station passenger flow volume, railroad section passenger flow volume and transfer passenger flow amount are accumulated as interval passenger flow volume, draws the interval path of track traffic layer with different colors by the different passenger flow volume in each interval.

Wherein, step S1 specifically comprises:

The calculating of station passenger flow volume: at unit time section t ₀in, for the number of entering the station, for departures number, then station ε in the t period _kthe number of entering the station be departures number is

The calculating of interval passenger flow volume: in period t, the station S of certain circuit _ito S _i+1uplink interval passenger flow volume be downlink interval passenger flow volume is wherein C is ticket Card Type, represent up passenger flow volume, represent descending passenger flow volume;

Transfer passenger flow amount is included in a direction of certain transfer stop, and all directions of other circuit change to the passenger flow in this direction, and the passenger flow total amount swapped out to other circuit by this direction, and account form is as follows:

If the line set that certain transfer stop is connected is L, and L={l ₁, l ₂..., l _i..., l _m, i=1,2,3 ..., m, m are the sum that this transfer stop is connected circuit, and definition O () is origin station set, and D () is destination stop set, and between OD, the set of all pathwaies is Δ={ Δ ₁, Δ ₂..., Δ _i...; The set of pathway weight is W={ ω ₁, ω ₂..., ω _i..., ω _iit is Δ _ithe weight of bar pathway,

Definition circuit l _ioriginating station be any intermediate station is transfer stop is ε _h, destination stop is circuit l _{i '}originating station be any intermediate station is transfer stop is ε _h, destination stop is l _iany intermediate station through ε _hto l _{i '}any intermediate station the passenger flow of transfer for changing to passenger flow volume is l _{i '}any intermediate station through ε _hto l _iany intermediate station the passenger flow of transfer for the passenger flow volume that swaps out is corresponding all by way of ε _hΔ (ε _h) in, to change to, the corresponding respective weight of the passenger flow that swaps out, then this transfer stop ε _hthe total passenger flow volume of transfer within the t period is:

$p_{{\mathrm{\ϵ}}_h}^t=\underset{t_0}{\overset{t}{\mathrm{\Σ}}}\underset{{\mathrm{\ϵ}}_k\∈[{\mathrm{\ϵ}}_1^i,{\mathrm{\ϵ}}_h)\∪({\mathrm{\ϵ}}_h,{\mathrm{\ϵ}}_z^i]}{\mathrm{\Σ}}{p}_{{\mathrm{\ϵ}}_k}^{\mathrm{HI}}+\underset{t_0}{\overset{t}{\mathrm{\Σ}}}\underset{{\mathrm{\ϵ}}_k\∈[{\mathrm{\ϵ}}_1^{i^{\′}},{\mathrm{\ϵ}}_h)\∪({\mathrm{\ϵ}}_h,{\mathrm{\ϵ}}_z^{i^{\′}}]}{\mathrm{\Σ}}{p}_{{\mathrm{\ϵ}}_k}^{\mathrm{HO}},$ t∈[T _a，T _b]

In formula: T _aand T _bfor the rising of calculation interval, only time;

Algorithm: the set of search transfer stop, travels through all transfer stops, and extract the transfer relation between all circuit different directions in transfer stop, first search obtains l _iat D _ifrom l on direction _iinitial station is to transfer stop ε _hbetween the set at all stations, then search obtains l _{i '}at D _{i '}from transfer stop ε on direction _hto l _{i '}the set at all stations of terminal, inquire about all stations of entering the station to collect to all departures stations all set of paths Δs () that D () collects at O (), search in section all match times in transfer passenger flow data sheet, and path belongs to the passenger flow data value of Δ () and adds up summation, thus obtain l _id _il is changed in direction _{i '}d _{i '}the passenger flow volume in direction;

The passenger flow volume of described algorithm application in each interval of rail line is calculated, and interval passenger flow is superposed with transfer passenger flow sues for peace, obtain the total passenger flow volume being distributed in arbitrary interval.

Wherein, using exchange hour as statistics dimension, after image data each time, the data in last cycle are calculated.

Wherein, when three kinds of passenger flow volume being stored in three data source tables of data bank, set up data set storing process and respective result of calculation is stored into temporary table, through adding up respectively of each cycle, three data source tables are reduced to separately the segmentation passenger flow volume data sheet in N number of cycle, comprise the passenger flow volume data sheet of station passenger flow, interval passenger flow, transfer passenger flow three types.

Wherein, described step S2 specifically comprises:

Take station as node, passenger flow operating path numbering is demarcated in segmentation, with the interval statistics data match of passenger flow volume.The path objects of the layer that all passenger flow operating path numberings and electronic chart got on the right track is encoded corresponding, in electronic chart spatial database, gathers path collection and sets up the storage of path data table;

Definition circuit L _athe set of all uplink intervals numbering be S _s(s _1,2, s _2,3... s _{i, i+1}... s _{z-1, z}), wherein s _{i, i+1}represent ε _iwith ε _i+1uplink interval between standing, corresponding S _x(s _2,1, s _3,2... s _{i+1, i}... s _{z, z-1}), wherein s _{i+1, i}represent ε _iwith ε _i+1downlink interval between standing, by S _sand S _xthe path objects of the layer that gets on the right track as electronic chart, differentiating uplink and downlink, corresponding to the passenger flow volume in up-downgoing interval, arbitrary passenger flow traveling path is Δ (OD _i), wherein O is origin station, and D is terminal point, can be expressed as by S _sor S _xthe sequence of intervals of middle element combinations;

Electronic chart, by judging that the path objects coding lookup of track layer needs the interval of drawing, then revises the color of orbiting object corresponding to this interval.

Wherein, judge that the path objects coding lookup of track layer needs to draw interval time, using path objects coding, station code searches as the index of spatial database.

Wherein, when drawing interval path, the map location at station object, interval plants place is plotted as hidden object with an object form, when calculating returns the path objects of inquiry, be display properties by hiding attribute modification, and according to the passenger flow volume color that show track section corresponding to color range displaying ratio table, the larger Show Color of passenger flow volume is darker.

Wherein, the histogram that described track traffic layer draws station passenger flow volume is also included in.

Wherein, also comprise upon step s 2 and on track communication chart layer, show early warning according to the warning level of passenger flow volume.

(3) beneficial effect

Urban Rail Transit passenger flow monitoring method of the present invention is owing to adding up carrying out a point cycle after the collection of track traffic passenger flow data, arrange storing process optimization, and be combined with electronic chart, make significantly to reduce for the process calculating the total passenger flow volume of each track section for a long time, achieve accurate, real-time dynamic monitoring Metro Network passenger flow situation distribution situation, effectively improve the efficiency that gauze passenger flow calculates.And on the basis of electronic chart way of presentation, utilize the intellectual analysis means of visual location and grading forewarning system, effectively capture the section that large passenger flow is blocked up, automatically early warning signal is sent, be of value to and prevent passenger flow to have a full house early, to raising rail transportation operation level of service and lifting passenger transportation management ability, there is higher practical value.

Accompanying drawing explanation

Fig. 1 is a kind of Urban Rail Transit passenger flow monitoring method diagram of circuit of the embodiment of the present invention.

Detailed description of the invention

Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.

As shown in Figure 1, Urban Rail Transit passenger flow monitoring method of the present invention comprises:

Step S101, by the real-time passenger ticket data of predetermined period acquisition trajectory traffic route ticket selling and checking system, calculates station passenger flow volume, railroad section passenger flow volume and transfer passenger flow amount, and three kinds of passenger flow volume is stored in a database.Detailed process is as follows:

To the data pick-up gathered, filtration, according to the feature that passenger flow statistics authenticity requires, select using exchange hour as statistics dimension, after image data each time, the data in last cycle are calculated, comprise the passenger flow volume that enters the station in computation period, departures passenger flow volume, the transfer passenger flow amount at arbitrary All other routes station is changed at arbitrary station through certain transfer stop, the passenger flow volume in the arbitrary interval of gauze adds up.Be respectively calculated as follows:

The calculating of station passenger flow: make unit time section t ₀in, for the number of entering the station, for departures number, then station ε in the t period _kthe number of entering the station be departures number is

Interval passenger flow data method of calculating: establish ticket Card Type C, in period t, with the station S of circuit L _ito S _i+1uplink interval passenger flow volume be downlink interval passenger flow volume is wherein ticket Card Type comprises stored value card, student ticket, souvenir ticket, annual ticket etc., according to the form setting of reality distribution ticket card. represent up passenger flow volume, represent descending passenger flow volume.

Transfer passenger flow is included in a direction of certain transfer stop, and all directions of All other routes change to the passenger flow in this direction, and the passenger flow total amount swapped out to All other routes by this direction.Method of calculating:

If the line set that certain transfer stop is connected is L, and L={l ₁, l ₂..., l _i..., l _m, i=1,2,3 ..., m, m are the sum that this transfer stop is connected circuit.Definition O () is origin station set, and D () is destination stop set, and between OD, the set of all pathwaies is Δ={ Δ ₁, Δ ₂..., Δ _i...; The set of pathway weight is W={ ω ₁, ω ₂..., ω _i..., ω _iit is Δ _ithe weight of bar pathway, the value of weight considers improved shortest path, shortest time, the composite factor such as most economical, and weight value is consistent with ticket business classifying ratio value herein.

Definition circuit l _ioriginating station be any intermediate station is transfer stop is ε _h, destination stop is circuit l _{i '}originating station be any intermediate station is transfer stop is ε _h, destination stop is l _iany intermediate station through ε _hto l _{i '}any intermediate station the passenger flow of transfer for changing to passenger flow volume is l _{i '}any intermediate station through ε _hto l _iany intermediate station the passenger flow of transfer for the passenger flow volume that swaps out is corresponding all by way of ε _hΔ (ε _h) in, to change to, the corresponding respective weight of the passenger flow that swaps out, then this transfer stop ε _hthe total passenger flow volume of transfer within the t period is

$p_{{\mathrm{\ϵ}}_h}^t=\underset{t_0}{\overset{t}{\mathrm{\Σ}}}\underset{{\mathrm{\ϵ}}_k\∈[{\mathrm{\ϵ}}_1^i,{\mathrm{\ϵ}}_h)\∪({\mathrm{\ϵ}}_h,{\mathrm{\ϵ}}_z^i]}{\mathrm{\Σ}}{p}_{{\mathrm{\ϵ}}_k}^{\mathrm{HI}}+\underset{t_0}{\overset{t}{\mathrm{\Σ}}}\underset{{\mathrm{\ϵ}}_k\∈[{\mathrm{\ϵ}}_1^{i^{\′}},{\mathrm{\ϵ}}_h)\∪({\mathrm{\ϵ}}_h,{\mathrm{\ϵ}}_z^{i^{\′}}]}{\mathrm{\Σ}}{p}_{{\mathrm{\ϵ}}_k}^{\mathrm{HO}},$ t∈[T _a，T _b]

In formula: T _aand T _bfor the rising of calculation interval, only time.

Algorithm: the set of search transfer stop, travels through all transfer stops, extracts the transfer relation between all circuit different directions in transfer stop.First search obtains l _iat D _ifrom l on direction _iinitial station is to transfer stop ε _hbetween the set at all stations, then search obtains l _{i '}at D _{i '}from transfer stop ε on direction _hto l _{i '}the set at all stations of terminal, inquires about all stations of entering the station and collects to all departures stations all set of paths Δs () that D () collects at O ().Extract the passenger flow data record that gathered by ticket selling and checking system, stored in transfer passenger flow data sheet, search in the table in section all match times, and path belongs to the passenger flow data value of Δ () and accumulative summation, thus obtain l _id _il is changed in direction _{i '}d _{i '}the passenger flow volume in direction.

The passenger flow volume of above-mentioned algorithm application in each interval of rail line is calculated, and interval passenger flow is superposed with transfer passenger flow sues for peace, obtain the total passenger flow volume being distributed in arbitrary interval.

Because each computation of Period is frequently carried out, set up data set storing process and respective result of calculation is stored into temporary table, through adding up respectively of each cycle, three data source tables are reduced to separately the segmentation passenger flow volume data sheet in N number of cycle, comprise the passenger flow volume data sheet of station passenger flow, interval passenger flow, transfer passenger flow three types.

Step S102, electronic chart is drawn track traffic layer, after described station passenger flow volume, railroad section passenger flow volume and transfer passenger flow amount are accumulated as interval passenger flow volume, draw the interval path of track traffic layer with different colors by the different passenger flow volume in each interval.Detailed process is as follows:

Electronic chart is drawn rail line layer, and in corresponding line, each station is as node, and passenger flow operating path numbering is demarcated in segmentation, with the interval statistics data match of passenger flow volume.The path objects of the layer that all passenger flow operating path numberings and electronic chart got on the right track is encoded corresponding, in electronic chart spatial database, gathers path collection, sets up path data table and store.

Definition circuit L _athe set of all uplink intervals numbering be S _s(s _1,2, s _2,3... s _{i, i+1}... s _{z-1, z}), wherein s _{i, i+1}represent ε _iwith ε _i+1uplink interval between standing, corresponding S _x(s _2,1, s _3,2... s _{i+1, i}... s _{z, z-1}), wherein s _{i+1, i}represent ε _iwith ε _i+1downlink interval between standing.By S _sand S _xthe path objects of the layer that gets on the right track as electronic chart, differentiating uplink and downlink, corresponding to the passenger flow volume in up-downgoing interval.Arbitrary passenger flow traveling path is Δ (OD _i), wherein O is origin station, and D is terminal point, can be expressed as by S _sor S _xthe sequence of intervals of middle element combinations.

Generally, electronic chart, by judging that the path objects coding lookup of track layer needs the interval of drawing, is then revised the color of this object, thus is realized the mark in this interval.And in the present system, passenger flow is combined with electronic chart, the passenger flow situation realized on electronic chart is shown, require all passenger flow operating paths to be added on electronic chart, factor data amount is huge, adopts orthodox method to complete at the appointed time.Therefore, adopt the strategy of Spatial Database Index, storing process, drafting preset point, realize route search and the demarcation of electronic chart spatial database.

1) path objects is encoded, station code as the index of spatial database, accelerate inquiry O (), D (), S _sand S _xspeed;

2) by the inquiry of interval region, station name inquiry, path Δ () and S _sor S _xcoupling, be defined as independently search procedure, by Query Result be line object be dispersed as an object, accelerate locating speed;

3) map location at station object, interval plants place is plotted as hidden object with an object form, when hind computation returns the route result object of inquiry, be display properties by hiding attribute modification, and according to the passenger flow volume color that show track section corresponding to color range displaying ratio table, the larger Show Color of passenger flow volume is darker, thus solves the slow problem of drafting speed.

Gathered by a point period times, after electron path superposes two kinds of modes, the retrieval of passenger flow volume data sheet significantly accelerated, decreases the storage size of retrieval source data table, thus optimize the inquiry of passenger flow volume.Identical O is stood, D station may exist mulitpath, is that weight is given in different path according to passenger flow sorting ratio, if represent passenger flow Δ (OD _i) weight that has of path.According to the regularity of distribution of passenger flow volume, be divided into peak, flat peak period.In system, in the corresponding Time segments division cycle, mate different weighted values, calculates peak period, flat peak period passenger flow volume separately, and at same Δ (OD _i) S _sor S _xinterval is gathered, obtains S _sor S _xcorresponding passenger flow volume, thus superpose on electronic chart.

According to the distribution passenger flow volume of each section of circuit that point computation of Period obtains, by the passenger flow volume out of the station at station, interval passenger flow volume and transfer passenger flow amount are prolonged path number and are superimposed upon on same interval, and map shows the current station of different each sections of color table timberline net, interval passenger flow gathereding degree.

Station passenger flow: to station passenger flow, inquiry is entered the station, departures number, and the map reference at place, corresponding station draws the histogram of statistical graph, the data of histogram mark and draw respectively enter the station, the passenger flow that sets off numerical value.

Interval passenger flow: the coordinate of the region of search two station line place interval circuit shape shapestring in spatial database, plays, stops the coding at station, and up, the descending respective passenger flow volume of current interval.Layer is drawn all line styles that is that have a passenger flow and rail line analogous shape, at the side floating character string of this line segment, mark passenger flow volume.And compare with threshold value of warning according to this passenger flow volume, according to the corresponding color of color range coupling display of passenger flow volume size.

Also comprise after step S102, when passenger flow volume exceedes early warning value, in map, show early warning.Uplink and downlink are distinguished in early warning, set passenger flow early warning level Four limit value as [P ₁(a, b), P ₂(a, b), P ₃(a, b), P ₄(a, b)], the passenger flow volume upper lower limit value of each rank of a and b difference.Whether exceed early warning value according to this cycle passenger flow quantitative analysis, if exceed classification, send early warning.The passenger flow volume in each interval of circuit is usually along with service time and passenger flow cultivating process increase gradually, and the passenger flow volume at the initial stage that puts into effect is less, and after accumulation for many years, passenger flow volume tends towards stability, when occurring that external conditions changes passenger flow volume and appearance fluctuated.Therefore threshold value of warning will by decision maker according to passenger flow empirical value customized.

Analysis result is arranged on electronic chart two layer, be used for showing train real time position respectively and move drafting layer, gauze passenger flow density dynamic drafting layer, according to the frequency that real time data refreshes, map is shown the trend of dynamic change.

Be presented at each station of rail line on electronic chart, the distribution of the passenger flow volume on interval forms passenger flow status early warning figure, segmentation measurement period is set to identical value with the time that electronic chart refreshes, thus ensure that Real-time Monitoring Data upgrades the conformability of alert status.The R. concomitans of electronic chart and computer processing data, for the optimization of computational efficiency provides the foundation, the validity of the intuitive that the system that improves uses and aid decision making.

Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.

Claims (5)

1. a Urban Rail Transit passenger flow monitoring method, is characterized in that, comprises the following steps:

S1: by the real-time passenger ticket data of predetermined period acquisition trajectory traffic route ticket selling and checking system, calculates station passenger flow volume, railroad section passenger flow volume and transfer passenger flow amount, and three kinds of passenger flow volume is stored in a database;

S2: draw track traffic layer on electronic chart, after described station passenger flow volume, railroad section passenger flow volume and transfer passenger flow amount are accumulated as interval passenger flow volume, draws the interval path of track traffic layer with different colors by the different passenger flow volume in each interval;

Wherein, step S1 specifically comprises:

The calculating of station passenger flow volume: at unit time section t ₀in, for the number of entering the station, for departures number, then station ε in the t period _kthe number of entering the station be departures number is

The calculating of interval passenger flow volume: in the period _tin, the station S of certain circuit _ito S _i+1uplink interval passenger flow volume be downlink interval passenger flow volume is wherein C is ticket Card Type, represent up passenger flow volume, represent descending passenger flow volume;

Transfer passenger flow amount is included in a direction of certain transfer stop, and all directions of other circuit change to the passenger flow in this direction, and the passenger flow total amount swapped out to other circuit by this direction, and account form is as follows:

If the line set that certain transfer stop is connected is L, and L={l ₁, l ₂..., l _i..., l _m, i=1,2,3 ..., m, m are the sum that this transfer stop is connected circuit, and definition O () is origin station set, and D () is destination stop set, and between OD, the set of all pathwaies is Δ={ Δ ₁, Δ ₂..., Δ _i...; The set of pathway weight is W={ ω ₁, ω ₂..., ω _i..., ω _iit is Δ _ithe weight of bar pathway,

Definition circuit l _ioriginating station be any intermediate station is transfer stop is ε _h, destination stop is circuit l _{i '}originating station be any intermediate station is transfer stop is ε _h, destination stop is l _iany intermediate station through ε _hto l _{i '}any intermediate station the passenger flow of transfer for changing to passenger flow volume is l _{i '}any intermediate station through ε _hto l _iany intermediate station the passenger flow of transfer for the passenger flow volume that swaps out is corresponding all by way of ε _hΔ (ε _h) in, to change to, the corresponding respective weight of the passenger flow that swaps out, then this transfer stop ε _hthe total passenger flow volume of transfer within the t period is:

$P_{{\mathrm{\ϵ}}_h}^t=\underset{t_0}{\overset{t}{\mathrm{\Σ}}}\underset{{\mathrm{\ϵ}}_0\∈[{\mathrm{\ϵ}}_1^i,{\mathrm{\ϵ}}_h)\∪({\mathrm{\ϵ}}_h,{\mathrm{\ϵ}}_z^i]}{\mathrm{\Σ}}{p}_{{\mathrm{\ϵ}}_k}^{\mathrm{HI}}+\underset{t_0}{\overset{t}{\mathrm{\Σ}}}\underset{{\mathrm{\ϵ}}_k\∈[{\mathrm{\ϵ}}_1^{i^{\′}},{\mathrm{\ϵ}}_h)\∪({\mathrm{\ϵ}}_h,{\mathrm{\ϵ}}_z^{i^{\′}}]}{\mathrm{\Σ}}{p}_{{\mathrm{\ϵ}}_k}^{\mathrm{HO}},t\∈[T_a,T_b]$

In formula: T _aand T _bfor the rising of calculation interval, only time;

Algorithm: the set of search transfer stop, travels through all transfer stops, and extract the transfer relation between all circuit different directions in transfer stop, first search obtains l _iat D _ifrom l on direction _iinitial station is to transfer stop ε _hbetween the set at all stations, then search obtains l _{i '}at D _{i '}from transfer stop ε on direction _hto l _{i '}the set at all stations of terminal, inquire about all stations of entering the station to collect to all departures stations all set of paths Δs () that D () collects at O (), search in section all match times in transfer passenger flow data sheet, and path belongs to the passenger flow data value of Δ () and adds up summation, thus obtain l _id _il is changed in direction _{i '}d _{i '}the passenger flow volume in direction;

The passenger flow volume of described algorithm application in each interval of rail line is calculated, and interval passenger flow is superposed with transfer passenger flow sues for peace, obtain the total passenger flow volume being distributed in arbitrary interval;

Wherein, using exchange hour as statistics dimension, after image data each time, the data in last cycle are calculated;

Wherein, when three kinds of passenger flow volume being stored in three data source tables of data bank, set up data set storing process and respective result of calculation is stored into temporary table, through adding up respectively of each cycle, three data source tables are reduced to separately the segmentation passenger flow volume data sheet in N number of cycle, comprise the passenger flow volume data sheet of station passenger flow, interval passenger flow, transfer passenger flow three types;

Wherein, described step S2 specifically comprises:

Take station as node, passenger flow operating path numbering is demarcated in segmentation, with the interval statistics data match of passenger flow volume, the path objects of the layer that all passenger flow operating path numberings and electronic chart got on the right track is encoded corresponding, in electronic chart spatial database, gather path collection, set up path data table and store;

Definition circuit L _athe set of all uplink intervals numbering be S _s(s _1,2, s _2,3... s _{i, i+1}... s _{z-1, z}), wherein s _{i, i+1}represent ε _iwith ε _i+1uplink interval between standing, corresponding S _x(s _2,1, s _3,2... s _{i+1, i}... s _{z, z-1}), wherein s _{i+1, i}represent ε _iwith ε _i+1downlink interval between standing, by S _sand S _xthe path objects of the layer that gets on the right track as electronic chart, differentiating uplink and downlink, corresponding to the passenger flow volume in up-downgoing interval, arbitrary passenger flow traveling path is Δ (OD _i), wherein O is origin station, and D is terminal point, can be expressed as by S _sor S _xthe sequence of intervals of middle element combinations;

Electronic chart, by judging that the path objects coding lookup of track layer needs the interval of drawing, then revises the color of orbiting object corresponding to this interval.

2. Urban Rail Transit passenger flow monitoring method as claimed in claim 1, it is characterized in that, judge that the path objects coding lookup of track layer needs to draw interval time, using path objects coding, station code searches as the index of spatial database.

3. Urban Rail Transit passenger flow monitoring method as claimed in claim 1, it is characterized in that, when drawing interval path, the map location at station object, interval plants place is plotted as hidden object with an object form, when calculating returns the path objects of inquiry, be display properties by hiding attribute modification, and according to the passenger flow volume color that show track section corresponding to color range displaying ratio table, the larger Show Color of passenger flow volume is darker.

4. Urban Rail Transit passenger flow monitoring method as claimed in claim 1, is characterized in that, is also included in the histogram that described track traffic layer draws station passenger flow volume.

5. the Urban Rail Transit passenger flow monitoring method according to any one of Claims 1 to 4, is characterized in that, also comprises upon step s 2 and on track communication chart layer, shows early warning according to the warning level of passenger flow volume.