CN1484206A - automatic vehicle dispatching system and method - Google Patents
automatic vehicle dispatching system and method Download PDFInfo
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- CN1484206A CN1484206A CNA031534252A CN03153425A CN1484206A CN 1484206 A CN1484206 A CN 1484206A CN A031534252 A CNA031534252 A CN A031534252A CN 03153425 A CN03153425 A CN 03153425A CN 1484206 A CN1484206 A CN 1484206A
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Abstract
The invention refers to a kind of traveled automatic assigning system and method. It sets car wireless device which combines with double direction wireless transmission system and whole world localization system on vehicles, the control centre can communicate with the vehicle in double direction, and it knows the position of the vehicle, compares the position with the assigned position, controls the vehicle to move to the assigned position. The control centre calculates the estimated value of each vehicle according to assigning law, and assigns the vehicle which has smallest value. The assigning law includes the reaching time, or/and average using times; when the vehicle refuses to accept the assign, then assigns the second smallest value vehicle until the assign is accepted.
Description
Technical field
The invention relates to a kind of technology of sending automatically, refer to automatic dispatch system of a kind of driving and method especially, its scope of application comprises and is applied to taxi dispatch system, army and police's task assignation system for vehicles or other need carry out in the system of motor vehicles controlled dispatch operation.
Background technology
In known driving dispatch system, be example with the taxi dispatch system, it is to provide the individual service of sending a car by taxi dealer (for example fleet), can come chauffeur through phone or network for the passenger.And after the driving control center of taxi receives the chauffeur message, the yardman makes the air cast mode get in touch with the cab driving that all are answering the center broadcasting of sending a car, broadcast the place of getting a lift by the yardman, and by be short to most the time of reaching begin the inquiry, whether can arrive this place carrying of getting a lift by driving assessment voluntarily in the time of arrival of inquire requirement, and initiatively reply the carrying wish, and selected taxi is to taking the place carrying.
Yet, because known taxi dispatch system still adopts mostly and manually sends a car, therefore except the need expenditure is employed yardman's wages cost, also be easy to generate that the efficient of sending a car is not high links up the problem of overlong time with scheduling, and the yardman often need improve the precision of manually sending a car by the accumulation of experience, so in case the flow of personnel rate is too high, will definitely be empty the personnel training expense of line increment car control center.In addition, owing to be to use wireless link between driving control center and the taxi, so the control center that drives a vehicle only can judge the present situation of hiring a car according to driving the message of being replied by radio, and can't control all taxi situations really in travels down, very easily cause the difficulty on the taxi dispatching.
Moreover, because in recent years, the safety of getting a lift comes into one's own gradually, the mode that on the whole taxis under the fleet, all disposes global position system so also there is taxi fleet to develop, and in conjunction with mobile communication network (as: GSM) with the road location coordinate send to the driving control center, write down range of driving data by the driving control center server again, with the guarantee person's of taking safety.And driving control center also utilizes this action communication network and cab driving contact to link up.And because driving control center can control the road location of each vehicle, therefore receive the chauffeur message with obtain the passenger take location information after, be can select by the road location of each vehicle to assign and notice is gone to carrying apart from taking the nearest vehicle in place.Can only drive the disappearance of replying by the passive wait of broadcasting to improve the aforementioned control center that drives a vehicle.
Yet, if taking the nearest vehicle in place, distance is positioned at the road conditions highway section of being jammed at present, take the place and can't reach in real time, and will cause the withered grade of passenger to see the situation that taxi occurs for a long time and not, thereby cause the goodwill loss; In addition, if the average passenger occupancy of this taxi of being assigned is higher, but still receive the appointment of driving control center and go to carrying, make that easily handling capacity of passengers is lower, the heart is given birth to discontentedly taking that near travel the place cab driving distributes inequality for handling capacity of passengers also, is not very good.
In like manner, in known army and police's task assignation system for vehicles, each army and police's vehicle also uses radio to link up message, when meeting situation or unexpected the generation, driving control center (for example police office) will notify army and police's vehicle ' to the unexpected place of patrol nearby to carry out duties, but known army and police's task assignation system for vehicles also has the disappearance identical with the taxi dispatch system, also gives improved necessity.
Summary of the invention
Fundamental purpose of the present invention is that automatic dispatch system of a kind of driving and method are being provided, and is to use computer system to send motor vehicles automatically, is misjudgment and waste of time can reduce the people.
Another object of the present invention is that automatic dispatch system of a kind of driving and method are being provided, be according to being installed in global location module on each motor vehicles to grasp the current position coordinate of all motor vehicles, be driving estimated value time of arrival of considering motor vehicles simultaneously, to improve the decision-making precision of driving control center server.
A further object of the present invention is that automatic dispatch system of a kind of driving and method are being provided, and considers the average access times of motor vehicles, the decision motor vehicles desiring to send whereby, and the portfolio that can distribute each motor vehicles more fifty-fifty is to increase fairness.
For reaching above-mentioned purpose, according to a characteristic of the present invention, be to propose the automatic dispatch system of a kind of driving, it includes a plurality of on-vehicle radio devices and a driving control center server.Above-mentioned on-vehicle radio device is to be installed in respectively on the plural platform motor vehicles, and each on-vehicle radio device include a wireless transport module, with the global location module of the current position coordinate of fechtable motor vehicles, to send out via the current position coordinate of wireless transport module with motor vehicles.The driving control center server then includes a map data base, a receiver module and is sent module, stores the position coordinates that receives to some extent, a plurality of road section information in the map data base, reaches the pairing average velocity in each highway section; Receiver module can be called out the vehicle request for receiving one, and it includes an assigned address coordinate, travel to assigned address coordinate location so as to assigning motor vehicles, and receiver module also can receive the current position coordinate that is transmitted by wireless transport module; Send module to rake out the road section information in the chart database according to above-mentioned current position coordinate, assigned address coordinate, with be obtained from respectively current position reach the assigned address coordinate the path it comprise at least one highway section, send rule respectively according to the average velocity in stored each highway section of map data base with one again, calculate the estimated value of motor vehicles corresponding to the assigned address coordinate, and produce one and send notice to be sent to the motor vehicles with minimum estimate, travel to the assigned address coordinate with the announcement machine motor vehicle.
According to another characteristic of the present invention, be to propose a kind of driving to send method automatically, it is to be applied in the automatic dispatch system of above-mentioned driving.It initially is the current position coordinate information that receives and store plural platform motor vehicles; Wait to receive call out the vehicle request after, can hunt out from current position and reach the path that assigned address institute correspondence includes at least one road section information; Be the rule of sending of a parameter with average velocity then, calculate the estimated value in each path respectively according to one; Send notice to be sent to motor vehicles with one at last, travel to the assigned address coordinate so as to the announcement machine motor vehicle with minimum estimate.
In addition, in system and method proposed by the invention, motor vehicles also can be passed the refusal message back and not travel to assigned address coordinate location with the appointment of refusal driving control center server, the control center server of driving a vehicle this moment will be sent to the motor vehicles with time little estimated value sending to notify, or after the estimated value that recomputates each motor vehicles, will send notice to be sent to motor vehicles with minimum estimate.
Description of drawings
Fig. 1 is the functional block diagram of a preferred embodiment of the present invention;
Fig. 2 is the process flow diagram of a preferred embodiment of the present invention;
Fig. 3 is assigned address coordinate of a preferred embodiment of the present invention and the configuration relation figure between motor vehicles current position coordinate;
Fig. 4 is the process flow diagram of another preferred embodiment of the present invention.
Symbol description:
The T1-taxi
The 1-on-vehicle radio device
The 11-GPS module
The 12-wireless transport module
The 2-control center server of driving a vehicle
The 21-map data base
The 22-receiver module
23-sends module
The 24-Web page module
The 9-HA Global Positioning Satellite
R-calls out the vehicle request
P-assigned address coordinate
T1, t2, t3-current position coordinate
Embodiment
The present invention is applied to drive a vehicle in the dispatch system, present embodiment is to be example with the taxi dispatch system, its include taxi that plural platform is equiped with on-vehicle radio device, with a driving control center server, certainly practical application and not subject to the limits, for example also can be applicable to army and police's task assignation system for vehicles or other equivalence need carry out in the system of motor vehicles controlled dispatch operation.See also the functional block diagram of Fig. 1, the taxi dispatch system of present embodiment is to go up installing one on-vehicle radio device 1 in taxi T1 (being motor vehicles), be preferably an intelligent wireless personal digital assistant (PDA, personaldigital assistant) device, it includes a global location module (being GPS module 11), reaches a wireless transport module 12, it is in order to get in touch with communication with driving control center server 2, on-vehicle radio device 1 is preferable and be linked to power supply on the motor vehicles, does not have anxiety to guarantee power supply.Wherein, wireless transport module 12 is two-way wireless transport modules, for example for integrating packet radio (GPRS, general packet radio service) module or being a Global System for Mobile Communication (GSM, global system for mobile communication) module.In view of the above, GPS 11 can be set HA Global Positioning Satellite 9 timings (or not timing) and capture the current position coordinate of the T1 that hires a car, and see through the driving control center server 2 that wireless transport module 12 is sent to the current position coordinate taxi fleet in real time; 2 of control center server of driving include the current position coordinate that receiver module 22 transmits in order to receive all taxis, and has map data base 21 to store above-mentioned position coordinates, a plurality of road section information, to reach the pairing average velocity in each highway section, send 23 of modules the rule of sending of present embodiment will be described in detail hereinafter in detail according to sending rule to assign taxi to carry out the carrying service to the appointed place.
The pairing mean velocity information in each highway section is originated in the map data base 21 again, except that can adopting in-building type, because in the present embodiment, driving control center server 2 is to have the function that receives the position coordinates data that each taxi transmits at any time, so can utilize these coordinate data, the driving situation that cooperates time of reception or the like information to observe each highway section, and statistics draws the average velocity in each highway section, or even the average velocity of each highway section day part, for example: count each highway section respectively far from peak and the average velocity of spike period.
See also the process flow diagram of Fig. 2, the receiver module 22 of the control center server of driving a vehicle at the beginning 2 can receive and store the current position coordinate information (step S201) that is sent by each taxi, so as to grasping the position of each taxi.And when the passenger desires to take taxi, the passenger can see through phone that taxi fleet provided or network dial-a-cab to call out the receiver module 22 (step S202) that vehicle request R is sent to driving control center server 2 with one, call out vehicle request R and include the location coordinate information that the passenger desires to take place (or deserving to be called the car place), therefore send module 23 then will in map data base 21, read out the current position coordinate of each taxi, and be to make the efficient of sending that reaches preferable, can cooperate the map road section information, the taxi current position coordinate of (as: have an area of 10 kilometers) in the acquisition Entrucking Point position coordinates a certain regional extent, and hunt out from these taxi current positions reach passenger loading place need via formed path, highway section and the average velocity (step S203) of each highway section correspondence.
Then send module 23 to calculate the estimated value (step S204) of each taxi one by one according to the following rule of sending with respect to the assigned address coordinate:
Wherein, A and B are respectively a weight coefficient, and the coordinate spacing is the distance in path between assigned address coordinate and taxi current position coordinate, therefore,
For each taxi is travelled to assigned address estimated time of arrival by its current position.Be noted that,, therefore can remove the uneven problem of handling capacity of passengers of hiring a car of clearing because present embodiment is to list the average passenger occupancy of each taxi in estimated value to consider.In addition, it is required and define its scale voluntarily that the weight coefficient of A and B can flexibly be looked the taxi dealer, for example if the dealer wishes that taxi can reach assigned address within a short period of time, then will heighten the A weight coefficient, otherwise, if the dealer wishes to distribute more fifty-fifty the handling capacity of passengers of every driving, then heighten the B weight coefficient.Certainly if the dealer does not list average passenger occupancy in fully and considers, then the B value is 0, and the method for sending is that correction is as follows:
Present embodiment mainly is to be applied in the city, and the highway section, city is four crossway or crossroad mostly, so the coordinate spacing is preferably the summation of vertical interval and level interval between two places.
See also Fig. 3, be to have three taxis to travel at present in the highway section that is adjacent to assigned address coordinate P, wherein, the path of the current position coordinate t1 of taxi T1 and assigned address coordinate P is (X1+Y1), the path of the current position coordinate t2 of other taxi and t3 and assigned address coordinate P then be respectively (X2+Y2) with (X3+Y3).In addition, driving control center server 2 is the time point informations by long-term accumulative total position coordinates that taxi transmitted and GPS module acquisition coordinate, go out the average velocity in each highway section with statistical estimation, and average velocity also can be in response to spike/from the different road conditions differences at peak, and in the different periods, estimate different average velocity, and be stored in the map data base 21.But the also function of navigation system of the control center server 2 of driving a vehicle certainly, to hunt out each taxi drives to assigned address from current position optimal path, and also can be according to different highway sections and more accurately statistical estimation go out different average velocity, for example found the state average velocity, and the average velocity on four sections on loyalty and filial piety East Road etc. of overpass make the content of map data base 21 more be close to actual vehicle condition.In view of the above, send rule to strengthen to be:
Wherein, S
iBe from the taxi current position travel between assigned address via each highway section, V
iThen be corresponding to highway section S
iAverage velocity, and
Be each highway section summation.Thus, send rule can consider the average velocity in each highway section more accurately, reach assigned address required time of arrival with each taxi of certain grasp; Certainly, above-mentioned estimated value also can will send rule to be extended for if desire to consider the average passenger occupancy of taxi:
In present embodiment, suppose to send module 23 be calculate each taxi estimated value by little to being T1 greatly in regular turn, T3, T2 (step S205), because the more little expression right of priority of estimated value is high more, therefore send module 23 to send one notice to be sent to taxi T1 (step S206), come carrying to assign travelling to assigned address coordinate P of taxi T1.Wherein, send notice can or see through voice mode on the screen that is shown in on-vehicle radio device 1 and reach the purpose that notice is driven; In like manner, also drive to link up through voice or button selection with driving control center server 2.And when both (or many between motor vehicles) see through wireless network and link up, be preferably with the cipher mode transmission, to improve the data confidentiality.
And the wireless transport module 12 of taxi T1 receive send notice after, can select whether to accept the to drive a vehicle appointment (step S207) of control center server 2, if wireless transport module 12 is replied one and accepted message to driving control center server 2, confirming that the driver is ready to travel to assigned address coordinate P comes carrying (step S208); Otherwise, if reply a refusal message, the expression driver carrying of being unwilling at present, may be factors such as the existing at present passenger of taxi T1 takes, the driver wants to take a quick nap or come off duty/arrived the interval of service, then send the module 23 will be in previous operation result, find out taxi (step S209), and will send notice to be sent to taxi (step S206) with time little estimated value, up to driving control center server 2 receive accept message till; Subsequently, driving control center server 2 will inform that the passenger has accepted the taxi information (step S210) of assigning, for example time of arrival, the number-plate number, driving name etc.
For grasping really, the kith and kin that make the passenger take the dynamic of taxi, therefore the control center server 2 of driving a vehicle also includes a Web page module 24, with in step S210, when the taxi information that will accept to assign transmits and inform the passenger, the info web that is provided by Web page module 24 is provided in the lump, it is in order to show the course of this taxi, can see through the web displaying message in order to passenger's kith and kin and grasp the passenger and whether arrive safely the destination, guarantee security by bus; Certainly the driving control center server 2 that is combined with navigational system also can calculate taxi and be travelled to the optimal path or the traffic information of assigned address by current position, and transmitting and displaying is on the on-vehicle radio device screen of this taxi.
In addition, in present embodiment, sending module 23 is to calculate the estimated value of all taxis, also can only calculate at present the estimated value for the taxi of idle state (for example for not the complete vehicle curb condition of carrying) certainly, inquires the possibility of the carrying wish of carrying taxi with eliminating.How to judge the method for hiring a car, can whether press and charging code table that the control center server 2 of driving a vehicle is online or do not learn by for example driving by next status key (can see through wireless transport module pass back at present for leaving unused or busy condition) to idle state or busy condition.
See also Fig. 4, it is the process flow diagram of another embodiment of the present invention, it is roughly identical with the step of Fig. 2 in the previous embodiment, just in the present embodiment, if taxi T1 passes the refusal message back when reluctating accept to assign, because taxi T1 and driving control center server 2 are when communication and coordination, the state of other taxi may change to some extent, for example the taxi of carrying is originally just delivered to the destination with the passenger and state changes idle state into, or in this section communication time, just be downloaded to passenger etc. for the taxi of idle state originally, therefore send module 23 will capture the update mode (step S409) of each taxi, afterwards again according to sending rule to calculate the estimated value (step S404) of taxi, all the other steps are then fully identical with Fig. 2, so do not give unnecessary details at this.
According to above-mentioned explanation, show that automatic dispatch system of driving proposed by the invention and method are to adopt the driving control center server to send motor vehicles to finish scheduling automatically, can reduce known mistake and the situation of losing time; In addition, the position of all motor vehicles all can be subjected to certain control according to the coordinate information that the GPS module is passed back, adds the average velocity in each highway section, makes the driving control center server to make a policy more accurately, is a much progress in fact.
Claims (32)
1, the automatic dispatch system of a kind of driving comprises:
A plurality of on-vehicle radio devices are to be installed in respectively on the plural platform motor vehicles, and each on-vehicle radio device is to comprise:
One wireless transport module;
One global location module is the current position coordinate of these motor vehicles of acquisition, and sends out via this wireless transport module;
One driving control center server, it comprises:
One map data base is this current position coordinate of storage, a plurality of road section information, reaches the pairing average velocity in each highway section;
One receiver module, be to receive one to call out the vehicle request, this calling vehicle request includes an assigned address coordinate, travels to this assigned address coordinate so as to assigning motor vehicles, and this receiver module also can receive the current position coordinate by this wireless transport module transmitted;
One sends module, be according to the road section information in this current position coordinate, this this map data base of assigned address searching coordinates, with be obtained from respectively this current position reach this assigned address coordinate the path it comprise at least one highway section, send rule respectively according to the average velocity in this stored this highway section of map data base with one again, calculate the estimated value of these motor vehicles corresponding to this assigned address coordinate, and produce one and send notice to be sent to the motor vehicles with minimum estimate, travel to this assigned address coordinate to notify these motor vehicles.
2, system according to claim 1, wherein, this sends rule to be:
Wherein, the coordinate spacing is that this is by the spacing of calculating path.
3, system according to claim 1, wherein, this sends rule to be:
In the middle of, this A and B are respectively a weight coefficient, the coordinate spacing be this by the spacing of calculating path, this average use amount is the average access times of these motor vehicles.
4, system according to claim 1, wherein, this sends rule to be:
Wherein, S
iBe a highway section, V
iFor corresponding to this highway section S
iAverage velocity,
For this by all highway section summations of calculating path.
5, system according to claim 1, wherein, this sends rule to be:
Wherein, S
iBe a highway section, V
iFor corresponding to this highway section S
iAverage velocity,
For this by all highway section summations of calculating path, this average use amount is the average access times of these motor vehicles.
6, according to claim 3 or 5 described systems, wherein, these motor vehicles are taxis, and this average use amount average passenger occupancy that is taxi.
7, according to claim 2 or 3 described systems, wherein, this coordinate spacing be this path level interval and vertical interval summation.
8, system according to claim 1, wherein, this driving control center server is to utilize position coordinates that these motor vehicles capture and the time that captures this position coordinates, goes out the average velocity in each highway section with statistical estimation.
9, system according to claim 8, wherein, each highway section is to look different period difference and estimate different average velocity.
10, system according to claim 1, wherein, when these motor vehicles with minimum estimate receive after this sends notice, this radio transmitting device be can pass back one accept message or one the refusal message to this control center server of driving a vehicle, to represent whether desire is accepted this appointment of sending notice to travel to this assigned address coordinate to these motor vehicles.
11, system according to claim 10, wherein, if this radio transmitting device is to pass a refusal message back, then this sends module to comply with this estimated value to send notice to be sent to this motor vehicles by little to transmitting this greatly in regular turn, up to this radio transmitting device wherein pass back accept message till.
12, system according to claim 11, wherein, this sends module is to calculate the estimated value of the motor vehicles correspondence that is an idle state at present, and this idle state is that appointment or this motor vehicles that these motor vehicles of expression can be accepted this driving control center are not at present carried out any business at present as yet.
13, system according to claim 10, wherein, if this radio transmitting device is to pass a refusal message back, then this to send module be to recomputate the estimated value of this motor vehicles correspondence, be sent to motor vehicles this is sent notice with minimum estimate.
14, system according to claim 1, wherein, this driving control center server is to spread out of one to assign the vehicle message responding this callings vehicle request, and this appointments vehicle message is to have the acceptance appointment and the motor vehicle information to this assigned address coordinate of desiring to travel.
15, system according to claim 14, wherein, this driving control center server is to include a Web page module, and this driving control center spreads out of to respond this calling vehicle request in the lump with this Web page module information and with this appointment vehicle message, this Web page module is the course in order to the motor vehicles that show this acceptance appointment, and this course is acquisition pairing road section information in this map data base.
16, system according to claim 1, wherein, this global location module is regularly to capture these motor vehicles in position coordinates at that time.
17, system according to claim 1, wherein, this on-vehicle radio device is a personal digital assistant device.
18, system according to claim 1, wherein, this wireless transport module is an integration packet radio module.
19, system according to claim 1, wherein, this wireless transport module is a Global System for Mobile Communication module.
20, method is sent in a kind of driving automatically, comprises the following steps:
Receive and store the current position coordinate information of plural platform motor vehicles;
Receive one and call out the vehicle request, this calling vehicle request includes an assigned address coordinate;
Search reaches the pairing path of this assigned address from this current position, and it comprises at least one highway section;
According to one being the rule of sending of a parameter, calculate the estimated value in this path respectively with average velocity;
With one send the notice be sent to motor vehicles with minimum estimate, travel to this assigned address coordinate to notify these motor vehicles.
21, method according to claim 20, wherein, this sends rule to be:
Wherein, the coordinate spacing is that this is by the spacing of calculating path.
22, method according to claim 20, wherein, this sends rule to be:
In the middle of, this A and B are respectively a weight coefficient, and this average use amount is the average access times of these motor vehicles, and the coordinate spacing is that this is by the spacing of calculating path.
23, method according to claim 20, wherein, this sends rule to be:
Wherein, S
iBe a highway section, V
iFor corresponding to this highway section S
iAverage velocity,
For this by all highway section summations of calculating path.
24, method according to claim 20, wherein, this sends rule to be:
Wherein, S
iBe a highway section, V
iFor corresponding to this highway section S
iAverage velocity,
For this by all highway section summations of calculating path, this average use amount is the average access times of these motor vehicles.
25, according to claim 22 or 24 described methods, wherein, these motor vehicles are taxis, and this average use amount average passenger occupancy that is taxi.
26, according to claim 21 or 22 described systems, wherein, this coordinate spacing be this path level interval and vertical interval summation.
27, method according to claim 20, wherein, the average velocity in each highway section is by utilizing the accumulative total position coordinates that these motor vehicles captured and capturing the time of this position coordinates and statistical estimation comes out.
28, method according to claim 27, wherein, each highway section is to look different period difference and estimate different average velocity.
29, method according to claim 20, it more comprises the following steps:
Receive the refusal message that these motor vehicles are passed back, this refusal message is that this motor vehicles refusal of expression is accepted this appointment of sending notice to travel to this assigned address coordinate;
Send notice to this motor vehicles by little to transmitting greatly in regular turn according to estimated value, till receiving accepting message of passing back by these motor vehicles.
30, method according to claim 20, it is an estimated value of calculating the motor vehicles correspondence that is an idle state at present, this idle state is that these motor vehicles of expression can be accepted to assign at present or these motor vehicles are not carried out any business at present as yet.
31, method according to claim 20, it more comprises the following steps:
Receive the refusal message that these motor vehicles are passed back, this refusal message is that this motor vehicles refusal of expression is accepted this appointment of sending notice to travel to this assigned address coordinate;
The motor vehicles of getting rid of this refusal message of passback;
Recomputate the estimated value of this motor vehicles correspondence;
Transmitting this sends notice to these motor vehicles with minimum estimate.
32, method according to claim 20, it comprises that still spreading out of one assigns the vehicle message responding this callings vehicle request, this appointments vehicle message is to have the acceptance appointment and the motor vehicle information to this assigned address coordinate of desiring to travel.
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2003
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