CN103426300A - System and method for improving bus rapid transit dispatch precision - Google Patents
System and method for improving bus rapid transit dispatch precision Download PDFInfo
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- CN103426300A CN103426300A CN2012101575859A CN201210157585A CN103426300A CN 103426300 A CN103426300 A CN 103426300A CN 2012101575859 A CN2012101575859 A CN 2012101575859A CN 201210157585 A CN201210157585 A CN 201210157585A CN 103426300 A CN103426300 A CN 103426300A
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Abstract
The invention discloses a system and method for improving bus rapid transit dispatch precision and belongs to the field of intelligent transportation applied technologies. A bus rapid transit vehicle is used for driving one time in advance according to a bus rapid transit line, wherein the bus rapid transit vehicle is provided with a vehicle-mounted GPS positioning unit and a vehicle-mounted mileage counting unit. Position information determined by the vehicle-mounted GPS positioning unit and the vehicle-mounted mileage counting unit at every second serves as reference positions, and in the process of driving, the position information detected by the direct adoption of a GPS positioning sub-module serves as actual position information of the vehicle. When the vehicle is driven under a tunnel, a flyover and the like, a GPS signal is sheltered and position data can not be output, the system determines the current position of the vehicle through the mileage counting sub-module, so that bus rapid transit is corrected to seconds per second, and the situation that issued arrival information is corrected to seconds is further guaranteed.
Description
Technical field
The present invention relates to bus rapid transit scheduling field, be specifically related to a kind of system and method that improves bus rapid transit scheduling precision.
Background technology
Urban highway traffic is city " blood vessel ", and making it unimpeded is the assurance of urban sustainable development.At present, urban highway traffic is supplied with can not meet transport need far away, has caused urban road traffic congestion.The origin cause of formation of urban traffic blocking is multifaceted, and how from raising public transport efficiency aspect, to meet transport need alleviation traffic congestion is one of major subjects of traffic administration decision maker care.
Transport need refers to the requirement that people for various purposes and thing are moved in every way in social public space.Therefore, how adopting that handling capacity of passengers is large, speed is fast, take the vehicles that path area is relatively little, from first ground safety, easily and fast, punctual, comfortable, inexpensively move to second ground, is the target that the traffic administration decision maker pursues by people.
In order to realize this target, bus rapid transit (BRT:Bus Rapid Transit) is actively being built or opened in big and medium-sized cities all both at home and abroad, and special lane and crossing signal priority function are provided at road and signal controlling aspect for bus rapid transit, guarantee that bus rapid transit is not disturbed by other vehicles in traveling process, can preferentially obtain all-clear during by crossing and do not need to stop.And by reasonably arranging at the time of departure to the BRT vehicle and arrival time, can guarantee that time of departure interval is shorter as far as possible, enlarge the operation ability of BRT vehicle.Yet guarantee to improve to greatest extent the operation ability of BRT vehicle, will can be accurate to second each website of ground arrival by strict guarantee BRT vehicle, therefore by the scheduling to fast B RT vehicle, guarantee that the BRT vehicle can on time and be accurate to second ground each website of arrival very necessary.
Scheduling to BRT in prior art is carried out in the following way: 1. on each BRT vehicle, be mounted with and can carry out with dispatching center the GPS(Global Positioning System of communication transfer) locating module, utilize GPS locator module can obtain the real time position of BRT vehicle and be sent to dispatching center; 2. after dispatching center receives the positional information of BRT vehicle, with GIS(Geographic Information System) Geographic Information System carries out associated, the positional information of BRT vehicle is matched on electronic map road, and the dispatcher can see the position of BRT vehicle on electronic chart; 3. the dispatcher can transfer pre-stored good timetable from system, and according to the arrival time of putting down in writing in timetable, in conjunction with dispatcher's scheduling experience scheduling BRT vehicle, commander BRT vehicle arrives website on time.
In prior art, to BRT, there is following problem in vehicle scheduling:
(1) for the dispatcher, can only obtain the moment that the BRT vehicle arrives website according to timetable, therefore when scheduling, can only with the scheduling experience, be dispatched according to the moment of BRT vehicle arrival website, in scheduling process due to driver's driving habits difference, the not equal problem of dispatcher's experience, may cause the BRT vehicle according to the stipulated time in timetable, to be accurate to second ground and to arrive website.Especially in rush hour on and off duty, namely 1 to 2 minute, the interval at the time of departure of BRT vehicle, owing to can not guaranteeing in scheduling process that each BRT vehicle is accurate to the time arrival website of second ground according to timetable, the situation appearance that often causes many BRT vehicles to arrive a station simultaneously and also there is no a BRT vehicle pull-in through the longer time, brought inconvenience to motroist's trip.
(2) in prior art to the scheduling of BRT vehicle, to carry out according to dispatcher's scheduling experience and driver's driving experience, unified standard can't be arranged, therefore the timetable of formulating can only be as the inferior reference of arranging an order according to class and grade, can not guarantee that the BRT vehicle is accurate to second ground and arrives each website fully, make troubles to people by bus, and be unfavorable for improving the operation ability of BRT vehicle.
(3) in technique scheme, obtain vehicle location information by vehicle GPS, but the signal of vehicle GPS is easy to be blocked by buildings, trees, bridge, tunnel etc., when Vehicle Driving Cycle is subject to blocking to gps signal under tunnel, viaduct, GPS can't determine in the situation of vehicle current location, and technique scheme can't guarantee that the quick public transport vehicle can be accurate to second ground and arrive each website.
(4) in prior art to the scheduling of BRT vehicle, that in dispatching center, the form by data communication is handed down to the BRT vehicle by dispatch command to the dispatcher, when therefore BRT vehicle and dispatching center's communication are interrupted once in a while, just can't implement scheduling, more can not guarantee to be accurate to the scheduling of second.
Summary of the invention
To be solved by this inventionly in prior art, according to vehicle-mounted GPS equipment and yardman's empirical value, quick public transport vehicle is dispatched, can not guarantee to be accurate to the scheduling of second, and while relying on vehicle GPS to obtain vehicle position information, run into when shelter is arranged and can cause dropout, can't obtain vehicle position information accurately and then affect the technical matters of the degree of accuracy of bus rapid transit scheduling.
For solving the problems of the technologies described above, the invention provides a kind of system that improves bus rapid transit scheduling precision, comprising:
Scheduling unit, vehicle dispatching performance element, realize the first data communication unit of data transmission between described scheduling unit and described vehicle dispatching performance element; Vehicle GPS positioning unit and vehicle-mounted odometer counting unit and realize described vehicle GPS positioning unit and described vehicle-mounted odometer counting unit and described scheduling unit between the second data communication unit of data transmission, described vehicle GPS positioning unit and described vehicle-mounted odometer counting unit are arranged on quick public transport vehicle; The driver drives in advance the quick public transport vehicle speed according to the rules between every two adjacent sites of bus rapid transit route that is provided with described vehicle GPS positioning unit and described vehicle-mounted odometer counting unit and travels, and described vehicle GPS positioning unit gathers the position coordinates (x of a quick public transport vehicle p.s.
i, y
i), the distance travelled that described vehicle-mounted odometer counting unit gathers a quick public transport vehicle p.s. is counted S
i
Described scheduling unit is arranged in dispatching center, and it comprises:
The schedule plan generation module, receive the position coordinates (x of the quick public transport vehicle that described vehicle GPS positioning unit collects p.s. by described the second data communication unit
i, y
i) and the distance travelled that collects p.s. of described vehicle-mounted odometer counting unit count S
iWith Vehicle Driving Cycle time t
iForm schedule plan after associated; Coordinate (the x of the reference position that in the process that each described planned time table record quick public transport vehicle travels between adjacent sites, should arrive p.s.
i, y
i), benchmark mileage number S
iWith running time t
iThe described reference position of first record in described schedule plan is reference position, and corresponding running time is zero-time; The described reference position of last record in described schedule plan is in-position, and corresponding running time is time of arrival;
The schedule plan memory module, receive and store the described schedule plan that described schedule plan generation module generates;
The time of running, table generated module, quick public transport vehicle is waited for while dispatching a car at the starting station, table generated module transfer all schedule plans that meet this quick public transport vehicle running route from described schedule plan memory module described time of running, according to down time of time of departure of this quick public transport vehicle, each bus stop by the running time t in all described schedule plans
iBe revised as corresponding local time T
i, the generating run timetable also will show to be sent to the described vehicle dispatching performance element arranged on corresponding quick public transport vehicle all described times of running by described the first data communication unit;
Described vehicle dispatching performance element is arranged on quick public transport vehicle, and it comprises:
Show memory module the time of running, show and store the described time of running that receives described the first data communication unit transmission;
The vehicle location detection module, it comprises GPS locator module and mileage counting submodule, described GPS locator module take 1 second as the cycle to gather the coordinate (x of the physical location of quick public transport vehicle
D, y
D);
Described mileage counting submodule, gather the mileage number S that p.s., quick public transport vehicle travelled
D
Data switching module, be connected with the output terminal of described mileage counting submodule with described GPS locator module, reads the data that described GPS locator module and described mileage counting submodule collect simultaneously; If described GPS locator module detects the coordinate (x of quick public transport vehicle physical location
D, y
D), described data switching module is exported the coordinate (x of quick public transport vehicle physical location
D, y
D), control the data zero clearing in described mileage counting submodule simultaneously; Otherwise, the mileage number S that described data switching module output quick public transport vehicle travels
D
Relatively judge module, receive the data of showing memory module and data switching module output the described time of running; Coordinate (x by the physical location of the quick public transport vehicle of current time
D, y
D) being associated with in described time of running of table nearest with it reference position, the benchmark that it is corresponding is set to T constantly
D, benchmark moment T in simultaneously showing the time of running
DAnd corresponding benchmark mileage afterwards, deduct successively benchmark T constantly
DCorresponding mileage number S
DThe mileage number S perhaps quick public transport vehicle travelled
DBe associated with in described time of running of table immediate benchmark mileage with it, the benchmark that it is corresponding is set to T constantly
D
By T
DWith current time, T compares, computing time deviate Cw=|T-T
D|, with the deviation alarm threshold value, C compares: if during Cw≤C, judge that current quick public transport vehicle normally travels; If Cw>C, and T-T
DFor on the occasion of the time, judge that current quick public transport vehicle lags behind to travel; If Cw>C, and T-T
DDuring for negative value, judge that current quick public transport vehicle travels in advance;
The deviation display module, receive the described relatively judged result of judge module, and quick public transport vehicle is by current time T and quick public transport vehicle current time physical location or T of the corresponding benchmark moment of actual travel mileage
DDifference distinguish in seconds demonstration, the prompting driver regulate the speed.
Described scheduling unit also comprises route schematic diagram display module, it receives the data of described table generation time of running module, and receives the described relatively data of judge module in all quick public transport vehicle vehicle dispatching performance elements by described the first data communication unit;
Described route schematic diagram display module shows the quick public transport vehicle travel route by meaning intention the time of running, mean that intention means with reference position point the benchmark moment that record in table the described time of running the described time of running, connect the line segment that described reference position point forms and mean travel route, corresponding reference position point and the T of the corresponding benchmark moment of each order of classes or grades at school quick public transport vehicle physical location by current time T
DCorresponding reference position point difference shows.
Whether described vehicle dispatching performance element also comprises the auditory tone cues module, with the signal output part of described relatively judge module, is connected, according to the described relatively judged result of judge module, by voice signal, point out the driver to travel according to showing the time of running.
Described vehicle GPS positioning unit has identical specifications parameter with described GPS locator module.
A kind of method that the present invention also provides system of utilizing above-mentioned raising bus rapid transit to dispatch precision to be dispatched, comprise the steps:
I. generate schedule plan
1. for each bus rapid transit route, by the driver drive quick public transport vehicle between every two adjacent sites according to the rules speed travel, gather the position coordinates (x of a quick public transport vehicle p.s.
i, y
i) and distance travelled count S
i
Position coordinates (the x of the quick public transport vehicle that 2. will collect p.s.
i, y
i) as the reference position coordinate, distance travelled is counted to S
iAs the benchmark mileage, by running time t
iAs reference time, the associated rear schedule plan that forms, the described reference position of first record in described schedule plan is reference position, corresponding running time is zero-time; The described reference position of last record in described schedule plan is in-position, and corresponding running time is time of arrival;
II. generating run timetable
Transfer and all schedule plans that the bus rapid transit route is relevant, according to the frequency of each order of classes or grades at school quick public transport vehicle of this route, down time of respectively stopping website, by the running time t in described schedule plan
iChange corresponding local time T into
iAs benchmark constantly, form and show one group of time of running corresponding with each order of classes or grades at school quick public transport vehicle; Wait at the starting station when quick public transport vehicle while dispatching a car, will show to be sent to quick public transport vehicle one group of time of running of correspondence;
III. generate schedule information
S1, judge whether current time T equals the zero-time of record in a certain time of running of table; If equal, assign out and send instructions to corresponding quick public transport vehicle immediately; Otherwise, judge whether current time T is greater than the zero-time of a certain time of running of table record, be less than the time of arrival of described time of running of table record simultaneously;
If S2 current time T is greater than the zero-time of a certain time of running of table record, be less than the time of arrival of this of table record simultaneously time of running, judge that corresponding quick public transport vehicle sets out, read current time quick public transport vehicle actual position coordinate (x
D, y
D), otherwise repeating step S1;
S3, transfer described time of running of table, by the coordinate (x of quick public transport vehicle physical location
D, y
D) being associated with in described time of running of table nearest with it reference position, the benchmark that it is corresponding is set to T constantly
DBenchmark moment T in simultaneously showing the time of running
DAnd corresponding benchmark mileage afterwards, deduct successively benchmark T constantly
DCorresponding mileage number S
DAnd the distance travelled of quick public transport vehicle current time is counted to zero clearing, then perform step S5;
If can't gather current time quick public transport vehicle actual position coordinate (x
D, y
D), proceed to step S4;
S4, transfer described time of running of table, read the actual travel mileage number S of quick state vehicle current time
DQuick public transport vehicle actual travel mileage number is associated with in described time of running of table to immediate benchmark mileage with it, and the benchmark that it is corresponding is set to T constantly
D
S5, computing time deviate Cw=|T-T
D|, described time deviation value Cw and deviation alarm threshold value C are compared:
If during Cw≤C, the judgement quick public transport vehicle normally travels;
If Cw>C, and T-T
DFor on the occasion of, the judgement quick public transport vehicle lags behind and to travel;
If Cw>C, and T-T
DFor negative value, the judgement quick public transport vehicle travels in advance;
S6, quick public transport vehicle are by current time T and quick public transport vehicle current time physical location or T of the corresponding benchmark moment of actual travel mileage
DDifference distinguish in seconds demonstration, the prompting driver regulate the speed;
S7, judge that whether current time equals the arrival time of record in a certain time of running of table, if equal to perform step IV, returns to step S1 if be not equal to;
IV, judge whether quick public transport reaches terminal, if reach terminal task finishes; Otherwise, return to step S1.
Before described step I, also be included as the step that every bus rapid transit route and each website thereof are numbered respectively;
The described schedule plan of each obtaining in described step I all has the identification number relevant to bus rapid transit route site number.
After the table generation time of running described in described Step II, show that mean to be intended to the time of running of quick public transport vehicle travel route; The corresponding benchmark of corresponding reference position point and each order of classes or grades at school quick public transport vehicle physical location or the actual travel mileage T constantly by current time T
DCorresponding reference position point difference shows.
After described step S4, also comprise the steps:
Whether S4 ', broadcasting voice signal prompting driver be according to the described step that the time of running, table travelled.
Technique scheme of the present invention has following advantage:
(1) in the present invention, driving quick public transport vehicle by the driver travels according to the time interval of normal each website of arrival along the bus rapid transit route respectively, in the process of moving, mileage counting submodule be take the mileage number S travelled as cycle metering quick public transport vehicle in 1 second
i, be stored in schedule plan, if quick public transport vehicle travels to tunnel, when viaducts etc. can't obtain GPS locator module information, can directly utilize the mileage number of mileage counting submodule record associated with the immediate benchmark mileage of putting down in writing in table the time of running, and in the dispatching method in the present invention, as long as GPS locator module can collect the positional information of quick public transport vehicle, just benchmark corresponding benchmark mileage constantly and afterwards in showing the time of running, the mileage number zero clearing that deducts successively mileage number corresponding to the benchmark moment and vehicle-mounted mileage counting submodule is recorded, can eliminate the cumulative errors of far bringing due to the quick public transport vehicle operating range thus, judging after associated whether quick public transport vehicle is accurate to second travels.When not collecting gps signal, still can guarantee the degree of accuracy of scheduling.
(2) schedule plan adopted while in the present invention, quick public transport vehicle being dispatched, take and quick public transport vehicle is dispatched as unit for 1 second, quick public transport vehicle travel omnidistance all take within 1 second, carry out Real-Time Scheduling as the cycle, therefore can guarantee that arbitrary moment can be accurate to the position that second ground arrives regulation in the driving process of bus rapid transit.
(3) in the present invention, according to schedule plan and quick public transport vehicle, set out constantly and the moment of reaching terminal, the table time of running obtained, when actual comparing, the current physical location of current time and quick public transport vehicle or benchmark corresponding to actual mileage are compared constantly, in the whole process of scheduling, all to using the time as the foundation of dispatching, by the deviation display module, two time point differences are shown, differing between two points that the driver shows according to the deviation display module counted, can know in real time oneself whether the table time of running according to the rules travel, once quick public transport vehicle is leading or the time that lag behind surpasses alarm threshold value, system just can be sent dispatch command, thereby guarantee that quick public transport vehicle can travel according to the table time of running, with respect to higher according to degree of accuracy as what dispatch by distance in prior art, more can guarantee that scheduling is accurate to second.
(4) in the present invention, in by deviation display module prompting driver, also be aided with auditory tone cues, whether the real-time prompting driver normally advances when vehicle in front in the process of moving, make the driver can independently obtain dispatch command at any time, according to dispatch command, make next step action.
(5) in the present invention, be provided with in the vehicle dispatching performance element and show memory module the time of running that receives the table time of running, and the vehicle dispatching performance element comprises GPS locator module, measure the position coordinates of a quick public transport vehicle 1 second, and also comprise the comparison judge module that actual position coordinate that in directly showing the time of running, reference position coordinate and GPS locator module measure is compared in the vehicle dispatching performance element, therefore show to store and get final product in memory module the time of running that the unit, dispatching center only need to be issued to the corresponding table time of running vehicle dispatching performance element, in scheduling process, just do not need to have kept communication constantly with command and control center, can implement to be accurate to the scheduling of second fully by the existing information of vehicle dispatching performance element, even quick public transport vehicle and dispatching center's communication disruption are not affected yet.
The accompanying drawing explanation
For content of the present invention is more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein:
The system chart that Fig. 1 is raising bus rapid transit scheduling precision of the present invention;
The process flow diagram that Fig. 2 is generating run timetable of the present invention;
The process flow diagram of the method that Fig. 3 is raising bus rapid transit scheduling precision of the present invention;
Fig. 4 is corresponding reference position point and the corresponding reference position point T of quick public transport vehicle current time physical location of current time that the difference of embodiment of the present invention deviation display module shows
DSchematic diagram;
The reference position point that each order of classes or grades at school quick public transport vehicle current time T that Fig. 5 is embodiment of the present invention route schematic diagram display module difference demonstration is corresponding and the schematic diagram of the corresponding reference position point TD of this order of classes or grades at school quick public transport vehicle current time physical location;
Wherein Reference numeral is: the 1-scheduling unit, 10-schedule plan generation module, 11-schedule plan memory module, 12-shows to generate module the time of running, 13-route schematic diagram display module, 21-the first data communication unit, 22-the second data communication unit, 3-vehicle dispatching performance element, 31-shows memory module the time of running, 32-vehicle location detection module, 321-GPS locator module, 322-mileage counting submodule, the 33-data switching module, 34-is judge module relatively, 35-deviation display module, 36-auditory tone cues module, 4-vehicle GPS positioning unit, the vehicle-mounted odometer counting unit of 5-.
Embodiment
Below provide specific embodiments of the invention, the meaning that some symbols that relate in the present embodiment mean is as follows:
T: mean current time;
(x
i, y
i): be illustrated in the location coordinate information of i quick public transport vehicle position during second, i=0 wherein, 1,2,3
T
i: mean running time, i=0 wherein, 1,2,3 ..., and t
0=0s, t
1=1s, t
2=2s
T
i: mean benchmark constantly, i=0 wherein, 1,2,3 ..., and T
0Mean frequency;
(x
D, y
D): be illustrated in current time T, the coordinate of quick public transport vehicle physical location;
T
D: be illustrated in the table time of running, with the coordinate (x of quick public transport vehicle current time physical location
D, y
D) corresponding reference time of coordinate of nearest reference position;
Cw: mean that quick public transport vehicle is in the actual travel process, current time T and T
DBetween error;
C: mean the deviation alarm threshold value;
N: the order of classes or grades at school that means the quick public transport vehicle of a certain bus rapid transit route.
The system of the raising bus rapid transit scheduling precision that the present embodiment provides, as shown in Figure 1, comprising: scheduling unit 1, vehicle dispatching performance element 3, realize the first data communication unit 21 of data transmission between described scheduling unit 1 and described vehicle dispatching performance element 3; Vehicle GPS positioning unit 4 and vehicle-mounted odometer counting unit 5 and realize described vehicle GPS positioning unit 4 and described vehicle-mounted odometer counting unit 5 and described scheduling unit 1 between the second data communication unit 22 of data transmission;
Described vehicle GPS positioning unit 4 and described vehicle-mounted odometer counting unit 5 are arranged on quick public transport vehicle; The driver drives in advance the quick public transport vehicle speed according to the rules between every two adjacent sites of bus rapid transit route that is provided with described vehicle GPS positioning unit 4 and described vehicle-mounted odometer counting unit 5 and travels, and described vehicle GPS positioning unit gathers the position coordinates (x of a quick public transport vehicle 4 p.s.s
i, y
i), the distance travelled that described vehicle-mounted odometer counting unit gathers a quick public transport vehicle 5 p.s.s is counted S
i
Described scheduling unit 1 is arranged in dispatching center, and it comprises:
Schedule plan generation module 10, receive the position coordinates (x of the quick public transport vehicle that described vehicle GPS positioning unit collects for 4 p.s.s by described the second data communication unit 22
i, y
i) and the distance travelled that collects for 5 p.s.s of described vehicle-mounted odometer counting unit count S
iWith Vehicle Driving Cycle time t
iForm schedule plan after associated; Coordinate (the x of the reference position that in the process that each described planned time table record quick public transport vehicle travels between adjacent sites, should arrive p.s.
i, y
i), benchmark mileage number S
iWith running time t
iThe described reference position of first record in described schedule plan is reference position, and corresponding running time is zero-time; The described reference position of last record in described schedule plan is in-position, and corresponding running time is time of arrival;
Schedule plan memory module 11, receive and store the described schedule plan that described schedule plan generation module 10 generates;
The time of running, table generated module 12, quick public transport vehicle is waited for while dispatching a car at the starting station, table generated module 12 transfer all schedule plans that meet this quick public transport vehicle running route from described schedule plan memory module 11 described time of running, according to down time of time of departure of this quick public transport vehicle, each bus stop by the running time t in all described schedule plans
iBe revised as corresponding local time T
i, the generating run timetable also will show to be sent to the described vehicle dispatching performance element 3 arranged on corresponding quick public transport vehicle all described times of running by described the first data communication unit 21;
Scheduling unit 1 also comprises route schematic diagram display module 13, it receives the data of described table generation time of running module 12, and receives the described relatively data of judge module 34 in all quick public transport vehicle vehicle dispatching performance elements by described the first data communication unit 21;
Described route schematic diagram display module 13 shows the quick public transport vehicle travel route by meaning intention the time of running, mean that intention means with reference position point the benchmark moment that record in table the described time of running the described time of running, connect the line segment that described reference position point forms and mean travel route, corresponding reference position point and the T of the corresponding benchmark moment of each order of classes or grades at school quick public transport vehicle physical location by current time T
DCorresponding reference position point difference shows;
Described vehicle dispatching performance element 3 is arranged on quick public transport vehicle, and it comprises:
Show memory module 31 time of running, show and store the described time of running that receives described the first data communication unit 21 transmission;
Vehicle location detection module 32, it comprises GPS locator module 321 and mileage counting submodule 322,
Described GPS locator module 321, take 1 second as the cycle to gather the coordinate (x of the physical location of quick public transport vehicle
D, y
D);
Described mileage counting submodule 322, gather the mileage number S that p.s., quick public transport vehicle travelled
D
Data switching module 33, be connected with the output terminal of described mileage counting submodule 322 with described GPS locator module 321, reads the data that described GPS locator module 321 and described mileage counting submodule 322 collect simultaneously; If described GPS locator module 321 detects the coordinate (x of quick public transport vehicle physical location
D, y
D), described data switching module 33 is exported the coordinate (x of quick public transport vehicle physical locations
D, y
D), control the data zero clearing in described mileage counting submodule 322 simultaneously; Otherwise, the mileage number S that described data switching module 33 output quick public transport vehicles travel
D
Relatively judge module 34, receive the data of showing memory module 31 and data switching module 33 outputs the described time of running; Coordinate (x by the physical location of the quick public transport vehicle of current time
D, y
D) being associated with in described time of running of table nearest with it reference position, the benchmark that it is corresponding is set to T constantly
D, benchmark moment T in simultaneously showing the time of running
DAnd corresponding benchmark mileage afterwards, deduct successively benchmark T constantly
DCorresponding mileage number S
DThe mileage number S perhaps quick public transport vehicle travelled
DBe associated with in described time of running of table immediate benchmark mileage with it, the benchmark that it is corresponding is set to T constantly
D
By T
DWith current time, T compares, computing time deviate Cw=|T-T
D|, with the deviation alarm threshold value, C compares: if during Cw≤C, judge that current quick public transport vehicle normally travels; If Cw>C, and T-T
DFor on the occasion of the time, judge that current quick public transport vehicle lags behind to travel; If Cw>C, and T-T
DDuring for negative value, judge that current quick public transport vehicle travels in advance;
Deviation display module 35, receive the described relatively judged result of judge module 34, and quick public transport vehicle is by current time T and quick public transport vehicle current time physical location or T of the corresponding benchmark moment of actual travel mileage
DDifference distinguish in seconds demonstration, the prompting driver regulate the speed.
The present embodiment also provides a kind of dispatching method that improves bus rapid transit scheduling precision, comprises the steps:
I. generate schedule plan
1. for each bus rapid transit route, by the driver drive quick public transport vehicle between every two adjacent sites according to the rules speed travel, gather the position coordinates (x of a quick public transport vehicle p.s.
i, y
i) and distance travelled count S
i
Position coordinates (the x of the quick public transport vehicle that 2. will collect p.s.
i, y
i) as the reference position coordinate, distance travelled is counted to S
iAs the benchmark mileage, by running time t
iAs reference time, the associated rear schedule plan that forms, the described reference position of first record in described schedule plan is reference position, corresponding running time is zero-time; The described reference position of last record in described schedule plan is in-position, and corresponding running time is time of arrival;
In practical implementation, whether the data acquisition that each driver's driving habits and driving experience can have influence in schedule plan is accurate, therefore the mode of choosing driver Shi Ke and taking everybody to elect, select the outstanding driver who generally acknowledges to obtain schedule plan, preferably the driver obtains data and can be used as the benchmark that all drivers observe;
In this step, the quick public transport vehicle utilized is identical with the quick public transport vehicle in actual moving process, also be provided with vehicle GPS positioning unit and vehicle-mounted odometer counting unit on quick public transport vehicle, utilize the vehicle GPS positioning unit to record the quick public transport vehicle position coordinates as the reference position coordinate, utilize vehicle-mounted odometer counting unit to record distance travelled as the benchmark mileage, be stored in schedule plan;
For convenient different bus rapid transit routes and the different websites distinguished, in the present embodiment, also be included as the step that every bus rapid transit route and each website thereof are numbered respectively; The described schedule plan of each obtaining in this step thus all has the identification number relevant to bus rapid transit route site number.When being numbered for the quick public transport Road, can adopt various ways, as long as different quick public transport Roads can be made a distinction, in the present embodiment, can different quick public transport Roads be numbered arabic numeral.
Bus rapid transit 1 bus (hereinafter referred to as fast 1) of take is example, fast 1 by way of the stop website have: the De Mao village-Dongying room-six camp gates-Dong highland-Xi depression-tri-camp gate-and adopted southern station-and adopted farm-Jiu Jing village-bright red raft of pontoons-West, The Big Red Gate-orchard, Nangyuan District road-wooden slippers garden bridge-sand mouth-Gate of Everlasting Stability in-the Temple of Heaven-Qianmen;
If fast 1 corresponding bus routes is numbered " 1 ", being numbered of its Sino-German Mao Zhuan station " 101 ", being numbered of station, Dongying room " 102 ", the rest may be inferred, being numbered of station, Qianmen " 117 ".
When obtaining schedule plan, driving by the driver station, the quick public transport vehicle speed according to the rules prior Cong Demao village (101) that vehicle GPS positioning unit 4 and vehicle-mounted odometer counting unit 5 are set travels to station, Dongying room (102), obtain the schedule plan shown in table 1, if the identification number of table 1 is " 1001 ", obtain equally the schedule plan shown in table 2 for the schedule plan from station, Dongying room (102) to six camp gate stations (103), establish its identification number for " 1002 ".As shown in Table 1 and Table 2, recording the benchmark mileage number that the coordinate of reference position that quick public transport vehicle should arrive p.s. should travel p.s. in schedule plan, and by first described reference position, be reference position, corresponding running time is zero-time; The described reference position of last record in described schedule plan is in-position, and corresponding running time is time of arrival;
No. 1001 schedule plans of table 1
The station of setting out: arrival station, the De Mao village: Dongying room
The schedule plan that No. 1002, table 2
The station of setting out: arrival station, Dongying room (102): six camp gates (103)
Schedule plan as shown in Table 1 and Table 2, the value of described longitude and latitude all detects and obtains by vehicle GPS positioning unit 4, with electronic map road, is not associated.It should be noted that in-position in the schedule plan of No. 1001 is exactly that reference position in the schedule plan of No. 1002 is identical in fact, just due in different schedule plans, the expression mode difference therefore adopted.
By that analogy, can obtain the schedule plan between all adjacent two stations on the whole piece route, and the in-position of previous schedule plan is identical with the reference position coordinate of next schedule plan.
II. generating run timetable
Transfer and all schedule plans that the bus rapid transit route is relevant, according to the frequency of each order of classes or grades at school quick public transport vehicle of this route, down time of respectively stopping website, by the running time t in described schedule plan
iChange corresponding local time T into
iAs benchmark constantly, form and show one group of time of running corresponding with each order of classes or grades at school quick public transport vehicle; Wait at the starting station when quick public transport vehicle while dispatching a car, will show to be sent to quick public transport vehicle one group of time of running of correspondence;
If setting out of standing in the fast 1 bus Cong Demao village (101) of n order of classes or grades at school is 12:30:00 constantly, be that zero-time is answered corresponding 12:30:00, add the running time in schedule plan No. 1001, the corresponding local time in the time of can releasing quick public transport vehicle arrive any one reference position between two stations, according to watch 1 can obtain the n order of classes or grades at school fast 1 bus No. 1001 the times of running table as shown in table 3.
The table time of running that No. 1001, table 3
The station of setting out: arrival station, the De Mao village (101): Dongying room (102)
Being located at Dongying room (102) down time of standing is 30 seconds, the moment from station, Dongying room (102) in showing No. 1002 times of running just should add that down time, 30s drew for arrive station, Dongying room No. 1001 times of running moment 12:35:00 table, can obtain from the moment at station, Dongying room be 12:35:30, the table No. 1002 times of running that can obtain thus fast 1 bus is as shown in table 4.
The table time of running that No. 1002, table 4
The station of setting out: arrival station, Dongying room (102): six camp gates (103)
By table 3 and table 1 contrast, and table 4 is known with table 2 contrast, shows the described time of running running time in described schedule plan to be scaled to the corresponding local time, other Information invariabilities exactly.The like, can obtain all time of running table of quick public transport vehicle in operational process.
III. generate schedule information
S1, judge whether current time T equals the zero-time of record in a certain time of running of table; If equal, assign out and send instructions to corresponding quick public transport vehicle immediately; Otherwise, judge whether current time T is greater than the zero-time of a certain time of running of table record, be less than the time of arrival of described time of running of table record simultaneously;
No. 1002 times of running table of take in the present embodiment is example, and zero-time is 12:35:30, and be 12:41:30 time of arrival; Suppose that current time T is 12:35:34, obviously its be greater than No. 1002 the time of running table record zero-time and be less than No. 1002 the time of running table record time of arrival;
If S2 current time T is greater than the zero-time of a certain time of running of table record, be less than the time of arrival of this of table record simultaneously time of running, judge that corresponding quick public transport vehicle sets out, read current time quick public transport vehicle actual position coordinate (x
D, y
D), otherwise repeating step S1;
S3, transfer described time of running of table, by the coordinate (x of quick public transport vehicle physical location
D, y
D) being associated with in described time of running of table nearest with it reference position, the benchmark that it is corresponding is set to T constantly
DBenchmark moment T in simultaneously showing the time of running
DAnd corresponding benchmark mileage afterwards, deduct successively benchmark T constantly
DCorresponding mileage number S
DAnd the distance travelled of quick public transport vehicle current time is counted to zero clearing, then perform step S5;
For example, when current time T is 12:35:34, the current actual position coordinate (x of quick public transport vehicle detected
D, y
D), described relatively judge module 34 is by the current actual position coordinate (x of quick public transport vehicle
D, y
D) with time of running table in reference position compare one by one, finding the reference position coordinate nearest with current quick public transport vehicle positional distance is (x
3, y
3), obtain T reference time corresponding to this position
DFor 12:35:31; Simultaneously, 12:35:31 and corresponding benchmark mileage afterwards thereof in showing the time of running, deduct benchmark mileage number 5.00 corresponding to 12:35:31 constantly successively;
The time of running, table will be deformed into:
During table 5 12:35:31, show the time of running of No. 1002
The station of setting out: arrival station, Dongying room (102): six camp gates (103)
Adopt this method can eliminate the cumulative errors of far bringing due to operating range, as common practise, can know, for the metering of Vehicle-Miles of Travel, be that the number of turns that turns over according to wheel and the diameter of wheel obtain, and the technician is difficult to guarantee that the diameter of wheel always remains on identical numerical value, therefore outstanding driver drives the mileage number recorded in the quick public transport vehicle driving process in advance, the mileage number recorded during with actual travel, very likely not identical, because the diameter of wheel is because variation has occurred the aeration quantity difference of tire, so can have cumulative errors after long distance travel, in the present embodiment owing in real time the mileage number zero clearing having been eliminated to this cumulative errors.
If can't gather current time quick public transport vehicle actual position coordinate (x
D, y
D), proceed to step S4;
S4, transfer described time of running of table, read the actual travel mileage number S of quick state vehicle current time
DQuick public transport vehicle actual travel mileage number is associated with in described time of running of table to immediate benchmark mileage with it, and the benchmark that it is corresponding is set to T constantly
DObviously now, the mileage number read has been not cumulative mileage number, but can read from one second the mileage number started that time of quick public transport vehicle position coordinates, therefore can eliminate cumulative errors;
According to table 5, if be the 12:35:32 moment at T, GPS locator module 321 can't detect the position coordinate value of quick public transport vehicle, read the now mileage number of mileage counting submodule 322 records, if now the mileage number of mileage counting submodule 322 records is 25.00m, with the benchmark mileage S in time of running table
4Association, S
4Corresponding benchmark is T constantly
DFor 12:35:34;
S5, computing time deviate Cw=|T-T
D|, described time deviation value Cw and deviation alarm threshold value C are compared:
If during Cw≤C, the judgement quick public transport vehicle normally travels;
If Cw>C, and T-T
DFor on the occasion of, the judgement quick public transport vehicle lags behind and to travel;
If Cw>C, and T-T
DFor negative value, the judgement quick public transport vehicle travels in advance;
Selecting described deviation alarm threshold value C is 1s, thus, can calculate mistiming Cw=|T-T by comparing judge module 34
D| be 3 seconds, be greater than C, and T-T
DFor negative, so quick public transport vehicle lags behind 3 seconds;
S6, quick public transport vehicle are by current time T and quick public transport vehicle current time physical location or T of the corresponding benchmark moment of actual travel mileage
DDifference distinguish in seconds demonstration, the prompting driver regulate the speed; The prompting driver will remain the reference position point and T of the corresponding benchmark moment of quick public transport vehicle current time physical location that current time T is corresponding
DCorresponding reference position point is in coincidence status;
Figure 4 shows that corresponding reference position point and the corresponding reference position point T of quick public transport vehicle current time physical location of current time that described deviation display module 35 shows
DSchematic diagram; The time that current time T is corresponding as shown in the figure is 08:00:11, and time corresponding to TD in the benchmark moment corresponding to the current physical location of quick public transport vehicle is 08:00:14, and obviously quick public transport vehicle travels leading 3 seconds.In the present embodiment, the reference position point that described deviation display module 35 shows is 9, and by current time corresponding Dian Yu centre position, reference position, in the quick public transport vehicle operational process, As time goes on, the moment of reference position point representative also passes backward.And, in actual moving process, can show more reference position point.When quick public transport vehicle is leading or surpass the scope of said reference point retardation time, can directly adopt digital prompt, for example, shown in Fig. 4, when quick public transport vehicle in the time of leading 13 seconds, can not be prompted to the driver by the point of the reference position shown in Fig. 4, now described deviation display module 35 can directly be prompted to the driver by deviation, as " leading 13 seconds ".
S7, judge that whether current time equals the arrival time of record in a certain time of running of table, if equal to perform step IV, returns to step S1 if be not equal to;
IV, judge whether quick public transport reaches terminal, if reach terminal task finishes; Otherwise, return to step S1.
Adopt all quick public transport vehicles of scheduling that use the same method, can guarantee can be accurate to second to the scheduling of quick public transport vehicle.
Adopt all quick public transport vehicles of scheduling that use the same method, can guarantee can be accurate to second to the scheduling of quick public transport vehicle.
As preferred embodiment, after the table generation time of running described in described Step II, show that mean to be intended to the time of running of quick public transport vehicle travel route; Corresponding reference position point and the corresponding reference position point T of each quick public transport vehicle current time physical location by current time T
DDifference is presented at and means the described time of running on intention.
Be illustrated in figure 5 a kind of form of expression, in Fig. 5, adopt "●" to mean benchmark corresponding to the current physical location of quick public transport vehicle corresponding reference position point constantly, adopt
mean reference position point corresponding to current time, quick public transport vehicle for different order of classes or grades at school can adopt different color differentiatings, because the picture that this figure is black and white can not be according to color differentiating, therefore the order of classes or grades at school that adopted numerical reference in corresponding symbol top: as " B3 " means the 3rd order of classes or grades at school, " R12 " means the 12nd order of classes or grades at school, " G18 " means the 18th order of classes or grades at school, " Y19 " means the 19th order of classes or grades at school, but during actual motion, can utilize different colours to mean the vehicle of different order of classes or grades at school, for example adopt blue the 3rd order of classes or grades at school that means, adopt red the 12nd order of classes or grades at school that means, adopt green the 18th order of classes or grades at school that means, adopt yellow the 19th order of classes or grades at school etc. that means, as the mode that can realize, quick public transport vehicle for different order of classes or grades at school can take different shapes to mean, for example the 3rd order of classes or grades at school can adopt triangle to mean, the 12nd order of classes or grades at school can adopt rectangle to mean, the 18th order of classes or grades at school can adopt rhombus to mean, the 19th order of classes or grades at school can adopt the pentagram shape to mean etc.
The dispatcher can exercise supervision to the situation of scheduling in dispatching center, as can be seen from the figure dispatches and whether is accurate to second.Take Fig. 5 as example describes, obviously can obtain, for the 3rd order of classes or grades at school quick public transport vehicle and the 19th order of classes or grades at school quick public transport vehicle, two points overlap, and obviously the quick public transport vehicle of this two order of classes or grades at school normally travels according to the regulation of showing the time of running.And, for the 18th order of classes or grades at school quick public transport vehicle, reference position point corresponding to the benchmark moment super the first two point current time of corresponding reference position point that the current physical location of quick public transport vehicle is corresponding, therefore belong to and travel in advance, and leading two seconds; For the 12nd order of classes or grades at school quick public transport vehicle, four reference position points that the some current time is corresponding of the constantly corresponding reference position point hysteresis of benchmark that the current physical location of quick public transport vehicle is corresponding, therefore belonging to lags behind travels, and lags behind for four seconds.
Generally the driver can revise voluntarily according to above-mentioned prompting, if because certain reason is not revised, the dispatcher can be to not having the driver according to the quick public transport vehicle of showing the time of running to travel to send schedule information, also can adopt the form drivers such as phone, note, thereby further guarantee the degree of accuracy of scheduling.
Whether in order better to point out the driver to travel according to the regulation of showing the time of running, in the present embodiment, said method also comprises the steps:
Whether S7, broadcasting voice signal prompting driver are accurate to second ground according to the described step that the time of running, table travelled.Play voice signal and can adopt common toy trumpet, voice signal includes, but are not limited to following form: can play long prompting driver and travel in advance, play minor prompting driver hysteresis and travelled; Can play-over " leading, two seconds " " lags behind, 5 seconds " etc. and directly to point out the driver;
In sum, technical scheme provided by the present invention can guarantee quick public transport vehicle be accurate to second ground according to the time of running table travel, to improve the operation ability of quick public transport vehicle, alleviate the pressure of road traffic.
Obviously, above-described embodiment is only for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And the apparent variation of being extended out thus or change are still among the protection domain in the invention.
Claims (8)
1. one kind is improved the system that bus rapid transit is dispatched precision, comprising:
Scheduling unit (1), vehicle dispatching performance element (3), realize the first data communication unit (21) of data transmission between described scheduling unit (1) and described vehicle dispatching performance element (3); Vehicle GPS positioning unit (4) and vehicle-mounted odometer counting unit (5) and realize described vehicle GPS positioning unit (4) and described vehicle-mounted odometer counting unit (5) and described scheduling unit (1) between the second data communication unit (22) of data transmission, it is characterized in that:
Described vehicle GPS positioning unit (4) and described vehicle-mounted odometer counting unit (5) are arranged on quick public transport vehicle; The driver drives in advance the quick public transport vehicle speed according to the rules between every two adjacent sites of bus rapid transit route that is provided with described vehicle GPS positioning unit (4) and described vehicle-mounted odometer counting unit (5) and travels, and described vehicle GPS positioning unit (4) gathers the position coordinates (x of a quick public transport vehicle p.s.
i, y
i), described vehicle-mounted odometer counting unit (5) gathers the distance travelled of a quick public transport vehicle p.s. and counts S
i
Described scheduling unit (1) is arranged in dispatching center, and it comprises:
Schedule plan generation module (10), receive the position coordinates (x of the quick public transport vehicle that described vehicle GPS positioning unit (4) collects p.s. by described the second data communication unit (22)
i, y
i) and the distance travelled that collects p.s. of described vehicle-mounted odometer counting unit (5) count S
iWith Vehicle Driving Cycle time t
iForm schedule plan after associated; Coordinate (the x of the reference position that in the process that each described planned time table record quick public transport vehicle travels between adjacent sites, should arrive p.s.
i, y
i), benchmark mileage number S
iWith running time t
iThe described reference position of first record in described schedule plan is reference position, and corresponding running time is zero-time; The described reference position of last record in described schedule plan is in-position, and corresponding running time is time of arrival;
Schedule plan memory module (11), receive and store the described schedule plan that described schedule plan generation module (10) generates;
The time of running, table generated module (12), quick public transport vehicle is waited for while dispatching a car at the starting station, table generated module (12) transfer all schedule plans that meet this quick public transport vehicle running route from described schedule plan memory module (11) described time of running, according to down time of time of departure of this quick public transport vehicle, each bus stop by the running time t in all described schedule plans
iBe revised as corresponding local time T
i, the generating run timetable also will show to be sent to the described vehicle dispatching performance element (3) arranged on corresponding quick public transport vehicle all described times of running by described the first data communication unit (21);
Described vehicle dispatching performance element (3) is arranged on quick public transport vehicle, and it comprises:
Show memory module (31) time of running, show and store the described time of running that receives described the first data communication unit (21) transmission;
Vehicle location detection module (32), it comprises GPS locator module (321) and mileage counting submodule (322), described GPS locator module (321) take 1 second as the cycle to gather the coordinate (x of the physical location of quick public transport vehicle
D, y
D);
Described mileage counting submodule (322), gather the mileage number S that p.s., quick public transport vehicle travelled
D
Data switching module (33), be connected with the output terminal of described mileage counting submodule (322) with described GPS locator module (321), reads the data that described GPS locator module (321) and described mileage counting submodule (322) collect simultaneously; If described GPS locator module (321) detects the coordinate (x of quick public transport vehicle physical location
D, y
D), described data switching module (33) is exported the coordinate (x of quick public transport vehicle physical location
D, y
D), control the data zero clearing in described mileage counting submodule (322) simultaneously; Otherwise, the mileage number S that described data switching module (33) output quick public transport vehicle travels
D
Relatively judge module (34), receive the data of showing memory module (31) and data switching module (33) output the described time of running; Coordinate (x by the physical location of the quick public transport vehicle of current time
D, y
D) being associated with in described time of running of table nearest with it reference position, the benchmark that it is corresponding is set to T constantly
D, benchmark moment T in simultaneously showing the time of running
DAnd corresponding benchmark mileage afterwards, deduct successively benchmark T constantly
DCorresponding mileage number S
DThe mileage number S perhaps quick public transport vehicle travelled
DBe associated with in described time of running of table immediate benchmark mileage with it, the benchmark that it is corresponding is set to T constantly
D
By T
DWith current time, T compares, computing time deviate Cw=|T-T
D|, with the deviation alarm threshold value, C compares: if during Cw≤C, judge that current quick public transport vehicle normally travels; If Cw>C, and T-T
DFor on the occasion of the time, judge that current quick public transport vehicle lags behind to travel; If Cw>C, and T-T
DDuring for negative value, judge that current quick public transport vehicle travels in advance;
Deviation display module (35), receive the described relatively judged result of judge module (34), and quick public transport vehicle is by current time T and quick public transport vehicle current time physical location or T of the corresponding benchmark moment of actual travel mileage
DDifference distinguish in seconds demonstration, the prompting driver regulate the speed.
2. raising bus rapid transit according to claim 1 is dispatched the system of precision, it is characterized in that:
Described scheduling unit (1) also comprises route schematic diagram display module (13), it receives the data of the described table generation module time of running (12), and receives the described relatively data of judge module (34) in all quick public transport vehicle vehicle dispatching performance elements by described the first data communication unit (21);
Described route schematic diagram display module (13) shows the quick public transport vehicle travel route by meaning intention the time of running, mean that intention means with reference position point the benchmark moment that record in table the described time of running the described time of running, connect the line segment that described reference position point forms and mean travel route, corresponding reference position point and the T of the corresponding benchmark moment of each order of classes or grades at school quick public transport vehicle physical location by current time T
DCorresponding reference position point difference shows.
3. raising bus rapid transit according to claim 1 and 2 is dispatched the system of precision, it is characterized in that:
Described vehicle dispatching performance element also comprises auditory tone cues module (36), with the described relatively signal output part of judge module (34), be connected, according to the judged result of described relatively judge module (34), by voice signal, point out the driver whether to travel according to showing the time of running.
4. according to the system of the arbitrary described raising bus rapid transit scheduling precision of claim 1-3, it is characterized in that:
Described vehicle GPS positioning unit (4) has identical specifications parameter with described GPS locator module (321).
5. the method that the system of utilizing the arbitrary described raising bus rapid transit of claim 1-4 to dispatch precision is dispatched, is characterized in that, comprises the steps:
I. generate schedule plan
1. for each bus rapid transit route, by the driver drive quick public transport vehicle between every two adjacent sites according to the rules speed travel, gather the position coordinates (x of a quick public transport vehicle p.s.
i, y
i) and distance travelled count S
i
Position coordinates (the x of the quick public transport vehicle that 2. will collect p.s.
i, y
i) as the reference position coordinate, distance travelled is counted to S
iAs the benchmark mileage, by running time t
iAs reference time, the associated rear schedule plan that forms, the described reference position of first record in described schedule plan is reference position, corresponding running time is zero-time; The described reference position of last record in described schedule plan is in-position, and corresponding running time is time of arrival;
II. generating run timetable
Transfer and all schedule plans that the bus rapid transit route is relevant, according to the frequency of each order of classes or grades at school quick public transport vehicle of this route, down time of respectively stopping website, by the running time t in described schedule plan
iChange corresponding local time T into
iAs benchmark constantly, form and show one group of time of running corresponding with each order of classes or grades at school quick public transport vehicle; Wait at the starting station when quick public transport vehicle while dispatching a car, will show to be sent to quick public transport vehicle one group of time of running of correspondence;
III. generate schedule information
S1, judge whether current time T equals the zero-time of record in a certain time of running of table; If equal, assign out and send instructions to corresponding quick public transport vehicle immediately; Otherwise, judge whether current time T is greater than the zero-time of a certain time of running of table record, be less than the time of arrival of described time of running of table record simultaneously;
If S2 current time T is greater than the zero-time of a certain time of running of table record, be less than the time of arrival of this of table record simultaneously time of running, judge that corresponding quick public transport vehicle sets out, read current time quick public transport vehicle actual position coordinate (x
D, y
D), otherwise repeating step S1;
S3, transfer described time of running of table, by the coordinate (x of quick public transport vehicle physical location
D, y
D) being associated with in described time of running of table nearest with it reference position, the benchmark that it is corresponding is set to T constantly
DBenchmark moment T in simultaneously showing the time of running
DAnd corresponding benchmark mileage afterwards, deduct successively benchmark T constantly
DCorresponding mileage number S
DAnd the distance travelled of quick public transport vehicle current time is counted to zero clearing, then perform step S5;
If can't gather current time quick public transport vehicle actual position coordinate (x
D, y
D), proceed to step S4;
S4, transfer described time of running of table, read the actual travel mileage number S of quick state vehicle current time
DQuick public transport vehicle actual travel mileage number is associated with in described time of running of table to immediate benchmark mileage with it, and the benchmark that it is corresponding is set to T constantly
D
S5, computing time deviate Cw=|T-T
D|, described time deviation value Cw and deviation alarm threshold value C are compared:
If during Cw≤C, the judgement quick public transport vehicle normally travels;
If Cw>C, and T-T
DFor on the occasion of, the judgement quick public transport vehicle lags behind and to travel;
If Cw>C, and T-T
DFor negative value, the judgement quick public transport vehicle travels in advance;
S6, quick public transport vehicle are by current time T and quick public transport vehicle current time physical location or T of the corresponding benchmark moment of actual travel mileage
DDifference distinguish in seconds demonstration, the prompting driver regulate the speed;
S7, judge that whether current time equals the arrival time of record in a certain time of running of table, if equal to perform step IV, returns to step S1 if be not equal to;
IV, judge whether quick public transport reaches terminal, if reach terminal task finishes; Otherwise, return to step S1.
6. raising bus rapid transit according to claim 5 is dispatched the method for precision, it is characterized in that:
Before described step I, also be included as the step that every bus rapid transit route and each website thereof are numbered respectively;
The described schedule plan of each obtaining in described step I all has the identification number relevant to bus rapid transit route site number.
7. according to the method for the described raising bus rapid transit scheduling of claim 5 or 6 precision, it is characterized in that:
After the table generation time of running described in described Step II, show that mean to be intended to the time of running of quick public transport vehicle travel route; The corresponding benchmark of corresponding reference position point and each order of classes or grades at school quick public transport vehicle physical location or the actual travel mileage T constantly by current time T
DCorresponding reference position point difference shows.
8. according to the method for the arbitrary described raising bus rapid transit scheduling precision of claim 5-7, it is characterized in that:
After described step S4, also comprise the steps:
Whether S4 ', broadcasting voice signal prompting driver be according to the described step that the time of running, table travelled.
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| CN105469624A (en) * | 2016-01-11 | 2016-04-06 | 深圳市蓝泰源信息技术股份有限公司 | Operation total process automatic monitoring method based on scheduling |
| CN112085340A (en) * | 2020-08-14 | 2020-12-15 | 广州思创科技股份有限公司 | Bus scheduling method, system, device and storage medium |
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| CN112700671A (en) * | 2020-12-01 | 2021-04-23 | 华录智达科技有限公司 | Real-time bus monitoring method and system based on class chart |
| CN113096376A (en) * | 2021-04-26 | 2021-07-09 | 广州通达汽车电气股份有限公司 | Method, device, equipment and storage medium for judging vehicle crossing |
| CN113096376B (en) * | 2021-04-26 | 2022-06-17 | 广州通达汽车电气股份有限公司 | Method, device, equipment and storage medium for judging vehicle crossing |
| CN113345238A (en) * | 2021-07-07 | 2021-09-03 | 安徽富煌科技股份有限公司 | Traffic jam analysis system based on urban public transport network perception |
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