CN103578287A - Vehicle dispatching system and vehicle dispatching method - Google Patents
Vehicle dispatching system and vehicle dispatching method Download PDFInfo
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- CN103578287A CN103578287A CN201210254680.0A CN201210254680A CN103578287A CN 103578287 A CN103578287 A CN 103578287A CN 201210254680 A CN201210254680 A CN 201210254680A CN 103578287 A CN103578287 A CN 103578287A
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Abstract
The embodiment of the invention relates to the technical field of wireless communication, in particular to a vehicle dispatching system and a vehicle dispatching method. The vehicle dispatching system and the vehicle dispatching method are used for solving the problem that vehicle navigation is hard to be combined with road condition information in the prior art. The vehicle dispatching system comprises a road selection unit, an inducing unit and an inducing center. The road selection unit is used for determining at least one road segment between the current position of a vehicle and the next intersection according to the current position and the destination of the vehicle. The inducing unit is used for sending the determined road segment to the inducing center which is responsible for the vehicle between the current position and the next intersection and navigating the vehicle according to the road segment returned by the inducing center. The inducing center is used for selecting a road segment according to current road condition information on each road segment and returning the road segment to the inducing unit. According to the vehicle dispatching system and the vehicle dispatching method, one road segment is selected for navigation according to the current road condition information on each road segment, thus, the vehicle dispatching and the road condition information are combined and the accuracy in inducing and dispatching the vehicle is improved.
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of vehicle dispatch system and vehicle dispatching method.
Background technology
Current navigate mode is that user inputs destination, then according to pre-stored map, determines that the current position of user is to the path of destination, and according to definite path, dispatches in user's traveling process.
Because vehicle is more and more.Traffic congestion and situation about meeting accident are more and more.In navigation, definite path is along with the variation of road conditions is not likely optimal path.So obtaining of traffic information just seems particularly important.
Road conditions information gathering is mainly by public transport statistics magnitudes of traffic flow such as taxi, buses at present, dispatching center adds that by drawing real-time road figure traffic hazard real-time broadcasting induces driver, section state be unimpeded, walk or drive slowly and block up, with the frequency of fixing, refresh, vehicle flowrate is with large or little differentiation.Induction for single unit vehicle is mainly to load map and positioning software by car-mounted terminal, for vehicle driving shows the way, and adopts the modes such as broadcast listening to be combined with current road conditions.
But current navigation determines the mode in path and can only select corresponding path according to the screening conditions that set in advance, cannot determine path according to real-time road, user can only be after the traffic information obtaining, and oneself selects to change circuit.
In sum, when carrying out automobile navigation, be difficult at present combine with traffic information.
Summary of the invention
A kind of vehicle dispatch system and vehicle dispatching method that the embodiment of the present invention provides, in order to solve the very difficult problem combining with traffic information when carrying out automobile navigation existing in prior art.
A kind of vehicle dispatch system that the embodiment of the present invention provides, comprising:
Routing unit, for according to the current position of vehicle and destination, determines that vehicle current location is at least one section of next point of crossing;
Induction unit, for sending to being responsible for the induction center of vehicle current location to next point of crossing the described section of determining, and the section of returning according to described induction center is that described vehicle navigates;
Induction center, for the traffic information current according to each section, selects a section, and returns to described induction unit.
The method of a kind of vehicle scheduling that the embodiment of the present invention provides, comprising:
According to the current position of vehicle and destination, determine that vehicle current location is at least one section of next point of crossing;
The traffic information current according to each section, selects a section;
According to the section of selecting, be that described vehicle navigates.
Due to the embodiment of the present invention traffic information current according to each section, select a section to navigate, thereby vehicle scheduling and traffic information are combined, improved the accurate induction of vehicle and accurately scheduling.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention vehicle dispatch system;
Fig. 2 is the method flow schematic diagram of embodiment of the present invention vehicle scheduling;
Fig. 3 is the method flow schematic diagram of embodiment of the present invention auto navigation.
Embodiment
The embodiment of the present invention, according to the current position of vehicle and destination, determines that vehicle current location is at least one section of next point of crossing, and the traffic information current according to each section, selects a section to navigate.Due to the embodiment of the present invention traffic information current according to each section, select a section to navigate, thereby vehicle scheduling and traffic information are combined, improved the accurate induction of vehicle and accurately scheduling.
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.
As shown in Figure 1, the vehicle dispatch system of the embodiment of the present invention comprises: routing unit 10, induction unit 20 and induction center 30.
Routing unit 10, for according to the current position of vehicle and destination, determines that vehicle current location is at least one section of next point of crossing;
Wherein, routing unit 10 and induction unit 20 can be in car-mounted terminals.Induction center 30 is generally distributed in main crossing, and the close together of the induction unit 20 when vehicle is implemented to induction and in car-mounted terminal, can adopt short-distance wireless communication technology to realize information interaction, including but not limited to ZigBee technology between them.
In force, routing unit 10, behind the vehicle that receives user's input current position (or determining the position that vehicle is current by GPS module) and destination, determines that from map vehicle current location is to the section of next point of crossing.
Optionally, routing unit 10 can also, according to the current position of vehicle, destination and some subsidiary condition, determine that from map vehicle current location is to the section of next point of crossing.
The subsidiary condition of the embodiment of the present invention refer to the extra demand in traveling process, such as requiring certain specific place of necessary process etc. in order to meet people midway or to handle affairs.
Wherein, map can store in routing unit 10 or local storage.Preferably, can also not pre-stored map, by dispatching center, receive map.The map of the embodiment of the present invention can be the map of storing in traditional navigation terminal; Also can be weighting multigraph.
Concrete, the vehicle dispatch system of the embodiment of the present invention can further include: dispatching center 40;
10Xiang dispatching center, routing unit 40 sends current position and the vehicle destination of vehicle;
The map that 10 receiving scheduling centers, routing unit are returned, wherein in map, comprise the current position of the current position of vehicle and vehicle destination and vehicle and between vehicle destination each induction center information.
The area map that dispatching center 40 returns can be that the city map of intercepting can be also complete city map.
Wherein, the definite area map in dispatching center 40 can be the map of storing in traditional navigation terminal; Also can be weighting multigraph.In multiple section in weighting multigraph between every pair of point (vehicle current location and destination) section of weight minimum as this to representing section between point, to by current location, destination, point of crossing, section and represent that the figure that section forms adopts dijkstra's algorithm, the point of crossing, section on the shortest path between output current location and destination and the information of being responsible for the induction center in each section on this path.
Concrete, dispatching center 40 determines a rational connected region of two positions, rationality herein can oneself definition, for example define this connected region and be one long for x, wide be the rectangle of y, the line between current location and destination is the axis of symmetry of this rectangle.In this connected region, select some point of crossing, more representational section, these point of crossing and current location and destination node are coupled together (between the node that two have a direct-connected section, may have a more than section) with direct-connected section, so just formed multigraph.Road condition data in road conditions staqtistical data base is mapped on section corresponding in multigraph, has just obtained a weighting multigraph.The weight of this weighted graph, is to be determined by real-time road, is generally the smaller the better index, for example running time.
Above-mentioned connected region is a long x, wide for the rectangle of y is an example of being, this connected region can be any shape that meets these conditions, and maximum can be also the map in whole city.Can be as the map of the embodiment of the present invention in this connected region as long as current location and destination one fix on.Concrete stroke can be to keep straight on, detour and even seek something far and wide when it is within reach.
Owing to only having the point of crossing, section of one-in-and-one-out only can increase the complexity of calculating process, can not change last routing result, because vehicle or without is here optional through not dividing branch road here.Preferably, remove the point of crossing, section of only having one-in-and-one-out path in selected connected region, all the other are all point of crossing, representational section.The point of crossing, section that those only have one-in-and-one-out is mainly other path that restriction, traffic control, traffic hazard due to connected region causes using this point of crossing, section.
In force, dispatching center 40 can obtain real-time road by road conditions staqtistical data base, and the real-time road condition information that this database You Ge dispatching center sends over dynamically updates.
In intelligent transportation system allocation plan, the position of the setting at dispatching center 40 and each induction center 30 and responsible region all set in advance.
Concrete, induction unit 20 is the information at middle induction center according to the map, determines and be responsible for vehicle current location to the induction center of next point of crossing.
Wherein, induction unit 20 contacts with being responsible for induction center 30 foundation of induction vehicle from current location to point of crossing, next section by short-distance wireless communication unit, and induction center 30 is issued in the current location of oneself, point of crossing, next section, current vehicle speed (optionally) and optional section.
In force, a section, according to the preregistration information of each vehicle corresponding to the current traffic information in each section and each section, is selected in induction center 30, returns to induction unit, and under the section of selecting, sets up the preregistration information of this vehicle.
Concrete, induction center 30 is the preregistration information in conjunction with each vehicle corresponding to current traffic information and each section according to the concrete condition of this vehicle, for this vehicle is selected suitable section.
Wherein, the current traffic information in each section include but not limited in following message partly or entirely:
Vehicle number on each optional section, traffic lights situation, accident and road service system situation etc.
Wherein, the preregistration information of each vehicle corresponding to each section (comprises the vehicle that does not sail into or sailed into) for representing that corresponding vehicle has been arranged on corresponding section.Before when vehicle is preengage at induction center 30, the vehicle number in all reservations section deducts the vehicle number of this section reservation of all cancellations, just can obtain the vehicle fleet size of preregistration information corresponding to this section.
Except selecting section according to time and distance above, the factors such as quantity (corresponding weights are set) that can also increase oil consumption, section runway are selected section.The factor exclusive for each vehicles such as oil consumption can send to induction center 30 by parameter value by induction unit 20.
Such as: can ignore the time that vehicle is waited for traffic lights, vehicle is estimated to the running time L/v into whole road-section average by the time T in section, this predictor method is specially adapted to section compared with length and the less situation of reservation vehicle number.Also can ignore the running time of vehicle, vehicle be estimated to time [2* (x/m)-1] the * t that waits until traffic lights for vehicle on section by the time T in section, this predictor method is specially adapted to preengage on section the more situation of vehicle number.In general, vehicle can also be regarded as to the time (estimating as (L-x*k)/v) and time (estimating the * t into [2* (x/m)-the 1]) sum of waiting for traffic lights that drives to fleet's tail of the queue traffic lights from entering section by the time T in section.
Can also preset the corresponding relation of the time in vehicle number scope and this section of process, according to vehicle number scope with through the corresponding relation of time in this section, just can determine the time in this section of process that the affiliated vehicle number scope of the vehicle fleet size of preregistration is corresponding.Wherein the corresponding relation of the time in vehicle number scope and this section of process can upgrade according to road conditions.
The ruuning situation of vehicle on section can also be corresponded in a dynamic Simulation Demo System, the dynamic parameter of Simulation Demo System can be according to historical record real-time update.From time of starting as emulation in the moment of reservation, the mode by F.F. runs to vehicle by the moment of traffic lights, and the difference between two moment is reservation vehicle through the time in this section.
It should be noted that, the mode that the embodiment of the present invention was estimated through the section time is not limited to aforesaid way, still belongs to protection scope of the present invention, so can not limit protection scope of the present invention with this with mode similar with upper type or that be equal to.And other can determine the applicable equally embodiment of the present invention of mode through the section time except aforesaid way.
In force, induction center 30 is after obtaining the next crossing, section of vehicle and optional section, obtain the information in current optional section, preregistration information in conjunction with each vehicle corresponding to each section, select one in a best section of road conditions under precondition, by short-distance wireless communication, induction information is sent to the induction unit 20 of car-mounted terminal, records the preregistration information of this vehicle simultaneously.Information interaction also can be carried out by long in induction center 30 between radio communication and dispatching center 40 or other induction center, and the problem occurring in real-time road and Induction Process is shared in time and processed.
Preferably, induction unit 20 is at vehicle behind the section of selecting, and to induction center, 30 send deletion notice;
Accordingly, the preregistration information of this vehicle corresponding to the section of vehicle processes is deleted at induction center 30.
For inducing 30He dispatching center, center 40: dispatching center 40 emphasizes whole road conditions, it is mainly travel direction scheduling after receiving the induction demand of car-mounted terminal, make driver accomplish to know what's what to traffic route, but not formulating concrete stroke, is generally that a city or Yi Ge district arrange Yi Ge dispatching center; The road conditions in current section are emphasized at induction center 30, are that very concrete driving is instructed, and the general main crossroads in city all should arrange induction center, and guarantee that induction center realizes seamless coverage to all traffic light intersections.
Based on same inventive concept, a kind of method of vehicle scheduling is also provided in the embodiment of the present invention, because the principle that the method is dealt with problems is similar to embodiment of the present invention vehicle dispatch system, so the enforcement of the method can, referring to the enforcement of system, repeat part and repeat no more.
As shown in Figure 2, the method for embodiment of the present invention vehicle scheduling comprises the following steps:
Step 201, according to the current position of vehicle and destination, determine that vehicle current location is at least one section of next point of crossing;
Step 202, the traffic information current according to each section, select a section;
Step 203, according to the section of selecting, be that vehicle navigates.
Preferably, in step 201, according to the current position of vehicle and vehicle destination, from map, determine that vehicle current location is to the section of next point of crossing.
Preferably, before step 201, can further include:
According to the current position of vehicle, vehicle destination and current traffic information, determine that many between position that vehicle is current and vehicle destination are communicated with sections, and determine and contain many area maps that are communicated with sections.
Preferably, in step 202, according to following manner, select a section:
According to the preregistration information of each vehicle corresponding to the current traffic information in each section and each section, select a section, and under the section of selecting, set up the preregistration information of this vehicle.
Preferably, after step 203, can further include:
At vehicle, behind the section of selecting, delete the preregistration information of this vehicle corresponding to the section of vehicle process.
As shown in Figure 3, the method for embodiment of the present invention auto navigation comprises the following steps:
The dispatching center in the city, Xiang Qi place, routing unit in step 301, vehicle termination sends dispatching requirement, comprises starting point S and destination T;
Intersection node A1 and the A2 that will pass through from S to T determined in routing unit in step 303, car-mounted terminal, and the responsible induction center YSA1 from S to A1 section, be responsible for the induction center YA1A2 from A1 to A2 section, be responsible for the information of the induction center YA2T from A2 to T section;
Routing unit in step 304, car-mounted terminal arranges current section for from S to A1;
Induction unit in step 305, car-mounted terminal sends induced service demand to the induction center of being responsible for current section;
Traffic information before the induction centre junction in step 306, responsible current section is fated, sends to car-mounted terminal by induction information;
Induction unit in step 307, car-mounted terminal carries out the navigation in current section according to induction information;
Whether the routing unit judges in step 308, vehicle termination has arrived destination, if so, and process ends; Otherwise perform step 309;
Whether the routing unit judges vehicle in step 309, vehicle termination needs to reschedule, and if so, returns to step 301; Otherwise the routing unit in vehicle termination arranges current section (being that A1 is to A2), and returns to step 305.
In force, passengers inside the car can select to reschedule at any time, have been equivalent to directly start one and have taken turns new scheduling induction flow process.Just in induction flow process, when being about to sail out of a section, can trigger step 308, if do not arrive terminal, acquiescence will contact the dispatching center that is responsible for next section, whether but now can remind passengers inside the car to select to reschedule, concrete reminder time can be used as default setting or allows passengers inside the car oneself arrange as personalization option, for example, can be made as the centre position in current section.So step 308 can artificially trigger, also can be according to vehicle the location triggered in section.
What the step 301 in above-described embodiment and step 302 adopted is long apart from wireless communication technology, and including but not limited to cellular mobile communication technology, what step 305 and step 306 adopted is short-distance wireless communication technology, including but not limited to ZigBee technology.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (11)
1. a vehicle dispatch system, is characterized in that, this system comprises:
Routing unit, for according to the current position of vehicle and destination, determines that vehicle current location is at least one section of next point of crossing;
Induction unit, for sending to being responsible for the induction center of vehicle current location to next point of crossing the described section of determining, and the section of returning according to described induction center is that described vehicle navigates;
Induction center, for the traffic information current according to each section, selects a section, and returns to described induction unit.
2. the system as claimed in claim 1, is characterized in that, described routing unit specifically for:
According to the current position of vehicle and vehicle destination, from map, determine that vehicle current location is to the section of next point of crossing.
3. system as claimed in claim 2, is characterized in that, described system also comprises: dispatching center;
Described routing unit also for:
To described dispatching center, send current position and the vehicle destination of vehicle, and receive the map that described dispatching center returns, in wherein said map, comprise the information at the current position of the current position of vehicle and vehicle destination and vehicle and each the induction center between vehicle destination;
Described dispatching center is used for:
After receiving the current position of vehicle and vehicle destination, according to current traffic information, determine that many between position that vehicle is current and vehicle destination are communicated with sections, and return to described routing unit by containing described many area maps that are communicated with sections.
4. system as claimed in claim 3, is characterized in that, described induction unit also for:
According to inducing the information at center in described map, determine and be responsible for vehicle current location to the induction center of next point of crossing.
5. the system as claimed in claim 1, is characterized in that, described induction center specifically for:
According to the preregistration information of each vehicle corresponding to the current traffic information in each section and each section, select a section, return to described induction unit, and under the section of selecting, set up the preregistration information of this vehicle.
6. system as claimed in claim 5, is characterized in that, described induction unit also for:
At vehicle, behind the section of selecting, to described induction center, send and delete notice;
Described induction center also for:
Delete the preregistration information of this vehicle corresponding to the section of vehicle process.
7. a method for vehicle scheduling, is characterized in that, the method comprises:
According to the current position of vehicle and destination, determine that vehicle current location is at least one section of next point of crossing;
The traffic information current according to each section, selects a section;
According to the section of selecting, be that described vehicle navigates.
8. method as claimed in claim 7, is characterized in that, determines that vehicle current location, at least one section of next point of crossing, comprising:
According to the current position of vehicle and vehicle destination, from map, determine that vehicle current location is to the section of next point of crossing.
9. method as claimed in claim 8, is characterized in that, determines that vehicle current location, to before the section of next point of crossing, also comprises from map:
According to the current position of vehicle, vehicle destination and current traffic information, determine that many between position that vehicle is current and vehicle destination are communicated with sections, and determine and contain described many area maps that are communicated with sections.
10. method as claimed in claim 7, is characterized in that, section of described selection, specifically comprises:
According to the preregistration information of each vehicle corresponding to the current traffic information in each section and each section, select a section, and under the section of selecting, set up the preregistration information of this vehicle.
11. methods as claimed in claim 10, is characterized in that, according to the section of selecting, are, after described vehicle navigates, also to comprise:
At vehicle, behind the section of selecting, delete the preregistration information of this vehicle corresponding to the section of vehicle process.
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| CN201210254680.0A CN103578287B (en) | 2012-07-20 | 2012-07-20 | Vehicle dispatching system and vehicle dispatching method |
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| CN105977279A (en) * | 2016-07-07 | 2016-09-28 | 京东方科技集团股份有限公司 | Organic electroluminescence diode substrate and preparation method and display apparatus thereof |
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| CN108447294A (en) * | 2018-03-29 | 2018-08-24 | 四川畅云出行信息技术有限公司 | A kind of net about vehicle vehicle dispatching method and system |
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