CN103578287B - Vehicle dispatching system and vehicle dispatching method - Google Patents
Vehicle dispatching system and vehicle dispatching method Download PDFInfo
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- CN103578287B CN103578287B CN201210254680.0A CN201210254680A CN103578287B CN 103578287 B CN103578287 B CN 103578287B CN 201210254680 A CN201210254680 A CN 201210254680A CN 103578287 B CN103578287 B CN 103578287B
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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 determines the path of the current position of user to destination according to the map prestored, and dispatches according to the path determined in user's traveling process.
Because vehicle gets more and more.Traffic congestion and situation about meeting accident get more and more.The path that navigation is determined along with the change of road conditions be not likely optimal path.So the acquisition of traffic information just seems particularly important.
Current road conditions information gathering is mainly by the public transport such as taxi, the bus statistics magnitude of traffic flow, by drawing real-time road figure, dispatching center adds that traffic hazard real-time broadcasting is induced driver, block status be unimpeded, walk or drive slowly and block up, refresh with fixing frequency, vehicle flowrate is with large or littlely to distinguish.Induction for single unit vehicle mainly loads 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 that the mode in path can only select corresponding path according to the screening conditions pre-set, and cannot determine path according to real-time road, user can only, after the traffic information obtained, oneself select to change circuit.
In sum, be difficult to when carrying out automobile navigation at present combine with traffic information.
Summary of the invention
A kind of vehicle dispatch system that the embodiment of the present invention provides and vehicle dispatching method, in order to solve the problem being difficult to combine with traffic information when carrying out automobile navigation existed 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 current vehicle position arrives at least one section of next point of crossing;
Induction unit for sending the described section determined to the induction center of next point of crossing to responsible current vehicle position, and is that described vehicle navigates according to the section that described induction center returns;
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:
The position current according to vehicle and destination, determine that current vehicle position arrives at least one section of next point of crossing;
The traffic information current according to each section, selects a section;
Section according to selecting is that described vehicle navigates.
Due to the traffic information that the embodiment of the present invention is current according to each section, select a section to navigate, thus vehicle scheduling and traffic information are combined, improve accurate induction and the accurately scheduling of vehicle.
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, is determined that current vehicle position arrives at least one section of next point of crossing, the traffic information current according to each section, is selected a section to navigate.Due to the traffic information that the embodiment of the present invention is current according to each section, select a section to navigate, thus vehicle scheduling and traffic information are combined, improve accurate induction and the accurately scheduling of vehicle.
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 current vehicle position arrives at least one section of next point of crossing;
Induction unit 20 for sending the section determined to the induction center of next point of crossing to responsible current vehicle position, and is that vehicle navigates according to the section that induction center returns;
Induction center 30, for the traffic information current according to each section, selects a section, and returns to induction unit.
Wherein, routing unit 10 and induction unit 20 can in car-mounted terminals.Induction center 30 is generally distributed in main crossing, and the close together of the induction unit 20 when implementing to induce to vehicle 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 current position (or position current by GPS module determination vehicle) of vehicle receiving user's input and destination, determines the section of current vehicle position to next point of crossing from map.
Optionally, routing unit 10 according to the current position of vehicle, destination and some subsidiary condition, can also determine the section of current vehicle position to next point of crossing from map.
The subsidiary condition of the embodiment of the present invention refer to the extra demand in traveling process, such as, in order to midway meets people or working requirement has to pass through certain specific place etc.
Wherein, map can be stored in routing unit 10 or local storage.Preferably, can not also map be prestored, receive map by dispatching center.The map of the embodiment of the present invention can be the map stored in conventional 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;
Routing unit 10 sends the current position of vehicle and vehicle destination to dispatching center 40;
Dispatching center 40 is after receiving the current position of vehicle and vehicle destination, many between the position current according to current traffic information determination vehicle and vehicle destination are communicated with section, and the area map being communicated with section containing many is returned to routing unit 10;
The map that routing unit 10 receiving scheduling center returns, wherein comprises the information at each induction center between the current position in the current position of vehicle and vehicle destination and vehicle and vehicle destination in map.
The area map that dispatching center 40 returns can be the city map intercepted also can be complete city map.
Wherein, the area map that dispatching center 40 determines can be the map stored in conventional navigation terminal; Also can be weighting multigraph.The section that in multiple section in weighting multigraph between often pair of point (current vehicle position and destination), weight is minimum as this to point between representative section, to by current location, destination, point of crossing, section and represent the figure that section forms and adopt dijkstra's algorithm, export the point of crossing, section on the shortest path between current location and destination and be responsible for the information at 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, such as define this connected region be one long be x, the wide rectangle for 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 the direct-connected section of destination node are coupled together (between two nodes with direct-connected section, a more than section may be had), material is thus formed multigraph.Road condition data in road conditions staqtistical data base is mapped on section corresponding in multigraph, just obtains a weighting multigraph.The weight of this weighted graph is determined by real-time road, is generally the smaller the better index, such as running time.
Above-mentioned connected region be one long for x, the wide rectangle for y be an example, this connected region can be any shape meeting these conditions, and maximum also can be the map in whole city.Can 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 craspedodrome, detour and even seek something far and wide when it is within reach.
Due to the complexity only having the point of crossing, section of one-in-and-one-out only can increase calculating process, last routing result can not be changed, because vehicle or without here, through not dividing branch road optional here.Preferably, in selected connected region, removing only has the point of crossing, section in one-in-and-one-out path, and all the other are all point of crossing, representational section.Those only have the point of crossing, section of one-in-and-one-out, mainly because the restriction of connected region, traffic control, traffic hazard cause other path that can not use 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 is sended over by each dispatching center dynamically updates.
When intelligent transportation system allocation plan, position and the responsible region of the setting at dispatching center 40 and each induction center 30 set all in advance.
The weighting multigraph of foundation can be sent to car-mounted terminal by long apart from wireless communication unit by dispatching center 40.It should be noted that, on this weighting multigraph, denote the information at the induction center 30 in section between responsible every two consecutive point, behind point of crossing, selected next section, car-mounted terminal can extract is responsible for induction vehicle from current location to the information at the induction center of point of crossing, next section, sets up with it contact reception information.
Concrete, in inducing unit 20 according to the map, the information at induction center, determines the induction center of responsible current vehicle position to next point of crossing.
Wherein, induction unit 20 by short-distance wireless communication unit be responsible for inducing vehicle to set up from current location to the induction center 30 of point of crossing, next section and contact, 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, induction center 30, according to the preregistration information of each vehicle corresponding to the current traffic information in each section and each section, is selected a section, is returned to induction unit, and set up the preregistration information of this vehicle under the section of selection.
Concrete, induction center 30 according to the preregistration information of the concrete condition of this vehicle in conjunction with each vehicle corresponding to current traffic information and each section, for suitable section selected by this vehicle.
Wherein, it is part or all of that the traffic information that each section is current includes but not limited in following message:
Vehicle number on each optional section, traffic lights situation, accident and road service system situation etc.
Wherein, the preregistration information of each vehicle that each section is corresponding is represent that corresponding vehicle has been arranged on corresponding section (comprising the vehicle not sailing into or sailed into).The vehicle number in all reservation sections before during vehicle reservation is deducted the vehicle number of this section of all cancellations reservation by induction center 30, just can obtain the vehicle fleet size of preregistration information corresponding to this section.
Induction center 30 is according to the preregistration information of the concrete condition of this vehicle in conjunction with each vehicle corresponding to current traffic information and each section, just can estimate the time through this section, then the elapsed time in section can be selected minimum, section one such as from A to B has 4, then can the elapsed time be selected minimum from 4; The weight of all right setting-up time and distance, a section is selected according to weight, section one such as from A to B has 4, some distances are near but the time is long, and short but distance of some time, so add that by the time weighting time of being multiplied by distance weighting is multiplied by the coefficient apart from just obtaining section, then can choosing coefficient minimum, concrete weight can set as required, and the time weighting of the correspondence that the such as time is important can more greatly, and contrary distance weighting can be more greatly.
Except selecting section according to time and distance above, oil consumption can also be increased, the factor such as quantity (arranging corresponding weights) of section runway selects section.Parameter value can be sent to induction center 30 by induction unit 20 by the factor exclusive for each vehicles such as oil consumption.
Induction center 30, according to information such as single duration t, the road section length L of the average length k of the average velocity v of vehicle on the vehicle fleet size x of preregistration corresponding to each section, section, vehicle, average traffic number m that each green light passes through, traffic lights, just can be estimated vehicle and select the good section of road conditions by the time in section.
Such as: can ignore vehicle and wait for time of traffic lights, vehicle is estimated running time L/v into whole road-section average by the time T in section, it is longer and preengage the less situation of vehicle number that this predictor method is specially adapted to section.Also can ignore the running time of vehicle, estimated as time [2* (x/m)-1] the * t of traffic lights waited until by vehicle on section by the time T in section by vehicle, this predictor method is specially adapted to section be preengage the more situation of vehicle number.In general, vehicle can also be regarded as time (estimating as (L-x*k)/v) from fleet's tail of the queue before entering sections of road to traffic lights and time (estimating as [2* (x/m)-1] * t) sum waiting for traffic lights by the time T in section.
The corresponding relation of vehicle number scope and the time through this section can also be preset, according to vehicle number scope and the corresponding relation of the time through this section, the time in this section of process that the vehicle number scope belonging to vehicle fleet size of preregistration is corresponding just can be determined.Wherein vehicle number scope and the corresponding relation through the time in this section can upgrade according to road conditions.
Can also correspond in a dynamic Simulation Demo System by the ruuning situation of vehicle on section, the dynamic parameter of Simulation Demo System can according to historical record real-time update.From the moment of preengaging as the time emulation, run to the moment of vehicle by traffic lights by the mode of F.F., the difference between two moment is the time of reservation vehicle through 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 that is similar with upper type or that be equal to.And other can determine to be suitable for the embodiment of the present invention equally through the mode of section time except aforesaid way.
In force, induction center 30 is after the next crossing, section of acquisition vehicle and optional section, obtain the information in current optional section, in conjunction with the preregistration information of each vehicle corresponding to each section, select a section that road conditions are best under the present conditions, 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.Induction center 30 also carries out information interaction by long apart between radio communication and dispatching center 40 or other induction center, shares in time produced problem in real-time road and Induction Process and processes.
Accurate induction information is sent to induction unit 20 by induction center 30; Induction unit 20 is that vehicle navigates according to accurate induction information.Preferably, unit 20 is induced by accurate induction information display or can also to report to passengers inside the car.
Preferably, induction unit 20 at vehicle, sends to induction center 30 and deletes notice behind the section selected;
Accordingly, the preregistration information of this vehicle corresponding to the section of vehicle process is deleted at induction center 30.
For induction center 30 and dispatching center 40: dispatching center 40 emphasizes overall road conditions, mainly travel direction scheduling after receiving the supplier induced demand of car-mounted terminal, driver is made to accomplish to know what's what to traffic route, but not formulating concrete stroke, is generally that a city or a district arrange a dispatching center; The road conditions of current road segment are emphasized at induction center 30, and be that very concrete driving is instructed, the main crossroads generally in city all should arrange induction center, and ensure that induction center realizes seamless coverage to all traffic light intersections.
Based on same inventive concept, a kind of method of vehicle scheduling is additionally provided in the embodiment of the present invention, the principle of dealing with problems due to the method is similar to embodiment of the present invention vehicle dispatch system, and therefore the enforcement of the method see the enforcement of system, can 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 current vehicle position arrives 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 select section be that vehicle navigates.
Preferably, in step 201, the position current according to vehicle and vehicle destination, determine the section of current vehicle position to next point of crossing from map.
Preferably, can further include before step 201:
Many between the position current according to the current position of vehicle, vehicle destination and current traffic information determination vehicle and vehicle destination are communicated with sections, and determine the area map containing many connection sections.
Preferably, in step 202, select a section according to following manner:
The preregistration information of each vehicle corresponding to the traffic information current according to each section and each section, selects a section, and sets up the preregistration information of this vehicle under the section selected.
Preferably, can further include after step 203:
At vehicle behind the section selected, 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:
Routing unit in step 301, vehicle termination sends dispatching requirement to the dispatching center in its city, place, comprises starting point S and destination T;
Step 302, dispatching center send weighting multigraph to car-mounted terminal, comprise S, T, some representational intermediate interdigitated mouth nodes in figure, and the information at the induction center in responsible each section;
Routing unit in step 303, car-mounted terminal determines intersection node A1 and A2 that will pass through from S to T, and be responsible for the induction center YSA1 in the section from S to A1, be responsible for the induction center YA1A2 in the section from A1 to A2, be responsible for the information of the induction center YA2T in section from A2 to T;
Routing unit in step 304, car-mounted terminal arranges current road segment for from S to A1;
Induction unit in step 305, car-mounted terminal sends induced service demand to the induction center of responsible current road segment;
Step 306, be responsible for the induction centre junction of current road segment be fated before traffic information, induction information is sent to car-mounted terminal;
Induction unit in step 307, car-mounted terminal carries out the navigation of current road segment according to induction information;
Whether the routing unit judges in step 308, vehicle termination arrives destination, if so, then and process ends; Otherwise perform step 309;
Routing unit judges vehicle in step 309, vehicle termination, the need of rescheduling, if so, then returns step 301; Otherwise the routing unit in vehicle termination arranges current road segment (i.e. A1 to A2), and returns step 305.
In force, passengers inside the car can select to reschedule at any time, are equivalent to directly to start one and take turns new scheduling induction flow process.Just in induction flow process, whenever being about to sail out of a section, can triggered step 308, if do not arrive terminal, acquiescence will contact the dispatching center in responsible next section, such as, but whether passengers inside the car now can be reminded to select to reschedule, concrete reminder time can arrange by default or allow passengers inside the car oneself arrange as personalization option, can be set to the centre position of current road segment.So step 308 can artificially trigger, also can according to the location triggered of vehicle 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 change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (9)
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 current vehicle position arrives at least one section of next point of crossing;
Induction unit for sending the described section determined to the induction center of next point of crossing to responsible current vehicle position, and is that described vehicle navigates according to the section that described induction center returns;
Induction center, for the preregistration information according to each vehicle corresponding to the current traffic information in each section and each section, selects a section, returns to described induction unit, and set up the preregistration information of this vehicle under the section selected.
2. the system as claimed in claim 1, is characterized in that, described routing unit specifically for:
The position current according to vehicle and vehicle destination, determine the section of current vehicle position to next point of crossing from map.
3. system as claimed in claim 2, it is characterized in that, described system also comprises: dispatching center;
Described routing unit also for:
The current position of vehicle and vehicle destination is sent to described dispatching center, and receive the map that described dispatching center returns, comprise the information at each induction center between the current position in the current position of vehicle and vehicle destination and vehicle and vehicle destination in wherein said map;
Described dispatching center is used for:
After receiving the current position of vehicle and vehicle destination, many between the position current according to current traffic information determination vehicle and vehicle destination are communicated with section, and return to described routing unit by containing described many area maps being communicated with section.
4. system as claimed in claim 3, is characterized in that, described induction unit also for:
According to the information of inducing center in described map, determine the induction center of responsible current vehicle position to next point of crossing.
5. the system as claimed in claim 1, is characterized in that, described induction unit also for:
At vehicle behind the section selected, send to described induction center and delete notice;
Described induction center also for:
Delete the preregistration information of this vehicle corresponding to the section of vehicle process.
6. a method for vehicle scheduling, is characterized in that, the method comprises:
The position current according to vehicle and destination, determine that current vehicle position arrives at least one section of next point of crossing;
The preregistration information of each vehicle corresponding to the traffic information current according to each section and each section, selects a section, and sets up the preregistration information of this vehicle under the section selected.
Section according to selecting is that described vehicle navigates.
7. method as claimed in claim 6, is characterized in that, determine that current vehicle position arrives at least one section of next point of crossing, comprising:
The position current according to vehicle and vehicle destination, determine the section of current vehicle position to next point of crossing from map.
8. method as claimed in claim 7, is characterized in that, determine from map current vehicle position to next point of crossing section before, also comprise:
Many between the position current according to the current position of vehicle, vehicle destination and current traffic information determination vehicle and vehicle destination are communicated with sections, and determine the area map containing described many connection sections.
9. the method for claim 1, is characterized in that, the section according to selecting is, after described vehicle navigates, also comprise:
At vehicle behind the section selected, delete the preregistration information of this vehicle corresponding to the section of vehicle process.
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| CN105977279B (en) * | 2016-07-07 | 2020-12-01 | 京东方科技集团股份有限公司 | Organic light-emitting diode substrate, preparation method thereof and display device |
| CN107133735B (en) * | 2017-04-28 | 2020-05-19 | 大鹏高科（武汉）智能装备有限公司 | Unmanned ship resource sharing method and device |
| CN109991972A (en) * | 2017-12-29 | 2019-07-09 | 长城汽车股份有限公司 | Control method, apparatus, vehicle and the readable storage medium storing program for executing of vehicle driving |
| 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 |
| CN109445435A (en) * | 2018-11-21 | 2019-03-08 | 江苏木盟智能科技有限公司 | A kind of the traveling dispatching method and system of robot |
| CN110941269B (en) * | 2019-11-22 | 2023-06-13 | 深圳一清创新科技有限公司 | Unmanned vehicle control method, unmanned vehicle control device, computer equipment and medium |
| CN113112849B (en) * | 2021-03-25 | 2021-12-17 | 大连海事大学 | Demand response public transportation scheduling method based on ecological environment-friendly driving |
| CN114220282B (en) * | 2021-11-15 | 2022-12-02 | 三一专用汽车有限责任公司 | Vehicle scheduling control method and device and electronic equipment |
| CN114519933B (en) * | 2022-01-29 | 2023-11-21 | 邱惠崧 | Method, device and storage medium for contract travel management and control based on non-oversaturation state |
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