CN103854505A - Vehicle real-time navigation method and device - Google Patents
Vehicle real-time navigation method and device Download PDFInfo
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- CN103854505A CN103854505A CN201310697326.XA CN201310697326A CN103854505A CN 103854505 A CN103854505 A CN 103854505A CN 201310697326 A CN201310697326 A CN 201310697326A CN 103854505 A CN103854505 A CN 103854505A
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Abstract
The invention provides a vehicle real-time navigation method and device. The method includes the following steps that a navigation service center receives navigation demand information reported by a vehicle-mounted navigation terminal, wherein the navigation demand information includes destination information; the navigation service center calculates at least one navigation route from the current position to the destination of the vehicle-mounted navigation terminal according to various information relevant to a road and stored in a database; the navigation service center feeds back the calculated and obtained navigation route to the vehicle-mounted navigation terminal. The various information relevant to the road includes the road information showing a road structure, environment information showing a road environment and traffic information showing road traffic rules and traffic states. According to the vehicle real-time navigation method and device, multiple more reasonable navigation routes can be provided for a user to select.
Description
Technical field
The present invention relates to intelligent transport technology field, relate in particular to a kind of vehicle real time navigation method and device.
Background technology
At present, in automobile navigation, most widely used is single global position system (that is: GPS), this system via satellite positioned vehicle is now located position, then according to the destination of vehicle, and in conjunction with the map of navigation electronic of having stored, calculate one or several guidance path of vehicle arrival destination, then offer user.
Present inventor finds in practice: this navigational system is in the time of calculating path, only consider vehicle current location and destination, and do not consider on road other relevant information, for example: the correlative factors such as whether road is forbidden, whether road restricts driving, road visibility, therefore may there is very large irrationality in its guidance path that offers user, and irrational navigation.
Summary of the invention
In view of this, the invention provides a kind of vehicle real time navigation method and device, can provide more rational guidance path selective for user.
The invention provides a kind of vehicle real time navigation method, comprising:
Navigation Service center receives the navigation demand information that vehicle mounted guidance terminal reports, and described navigation demand information comprises: destination information;
Described navigation Service center is according to the various information relevant to road of storing in database, and calculating vehicle mounted guidance terminal is at least one guidance path to destination by current location;
Described at least one guidance path calculating is fed back to described vehicle mounted guidance terminal by described navigation Service center;
Wherein the various information relevant to road comprise: the road information, the environmental information of expression road environment and the transport information of expression road traffic regulation and traffic behavior that represent road structure.
Further, is calculating before guidance path at described navigation Service center, receives the real-time speed information of the vehicle that described vehicle mounted guidance terminal reports;
Described navigation Service center is in the time calculating guidance path, and the various information relevant to road of use are the various information relevant with road to certain Shi Gai position, position according to the Vehicle Driving Cycle of described real-time speed information prediction.
Further, described road information comprises: road toll information and road structure thing security information; Described environmental information comprises: road visibility information and road Weather information; Described transport information comprises: control traffic message, traffic control information, guidance information and traffic congestion condition information.
Further, at least one guidance path calculating described in comprises: path, Minimum-time, cost shortest path, compromise path and the suitable trip of environment path between between path, Minimum-time and cost shortest path.
Further, described navigation demand information comprises: expect to reach the destination the time;
Described navigation Service center, in the time calculating guidance path, according to described real-time speed information, is controlled at the compromise path between between path, Minimum-time and cost shortest path that described expectation reached the destination in the time computing time.
Further, realize based on cloud at described navigation Service center, described navigation Service center feeds back to described at least one guidance path calculating after described vehicle mounted guidance terminal, selects the omnidistance Voice Navigation of vehicle mounted guidance terminal described in described guidance path control according to traveler.
The invention also discloses a kind of vehicle real time navigation device, comprising:
Receiver module, the navigation demand information reporting for receiving vehicle mounted guidance terminal, described navigation demand information comprises: destination information;
Guidance path computing module, for the various information relevant to road of storing according to database, calculating vehicle mounted guidance terminal is at least one guidance path to destination by current location;
Guidance path sending module, feeds back to described vehicle mounted guidance terminal at least one guidance path that described guidance path computing module is calculated;
Wherein the various information relevant to road comprise: the road information, the environmental information of expression road environment and the transport information of expression road traffic regulation and traffic behavior that represent road structure.
Further, speed information receiver module, for calculating before guidance path at guidance path computing module, receives the real-time speed information of the vehicle that described vehicle mounted guidance terminal reports;
Described guidance path computing module, in the time calculating guidance path, the various information relevant to road of use are the various information relevant with road to certain Shi Gai position, position according to the Vehicle Driving Cycle of described real-time speed information prediction.
Further, described road information comprises: road toll information and road structure thing security information; Described environmental information comprises: road visibility information and road Weather information; Described transport information comprises: control traffic message, traffic control information, guidance information and traffic congestion condition information.
Further, at least one guidance path calculating described in comprises: path, Minimum-time, cost shortest path, compromise path and the suitable trip of environment path between between path, Minimum-time and cost shortest path.
Beneficial effect of the present invention:
The embodiment of the present invention is in the time of navigation, no longer only from electronic chart, to select one or several path from current location to destination to recommend user, but in the time calculating guidance path, consider fully the various information relevant to road, for example: environmental information, transport information etc., thereby make the guidance path that calculates more reasonable, when traveler adopts this more reasonably when guidance path, the line efficiency that of traveler will be contributed to improve, save its Trip Costs, can realization truly improve the situation of traffic congestion by means of navigation.
The present embodiment, can provide many alternative paths for user, for example path, Minimum-time, cost shortest path, compromise path and the suitable trip of environment path between between path, Minimum-time and cost shortest path, user can select the path trip of optimum oneself as required like this.
The present embodiment, can determine path according to much informations such as information of vehicles layer, geography information layer, environmental information layer, transport information layer and traffic rules Information Levels, also can determine and show paths according to user's demand layering.
The present embodiment can also be introduced alarm function, if the danger from other vehicle detected in the time of navigation, can in navigation, inform in time user.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the schematic flow sheet of the embodiment of vehicle real time navigation method provided by the invention.
Fig. 2 is the schematic diagram that the specific embodiment in path is found in road vehicle navigation.
Fig. 3 is the whether feasible or qualified judgement schematic diagram in path.
Schematic diagram when Fig. 4 is vehicle lane change.
Schematic diagram when Fig. 5 is vehicle emergency brake.
Fig. 6 is the structural representation of the first embodiment of vehicle real time navigation device provided by the invention.
Fig. 7 is the structural representation of the second embodiment of vehicle real time navigation device provided by the invention.
Embodiment
The navigate mode of traditional global position system based on single, can not promptly and accurately gather transport information, for example: the accurately state of perception traffic flow, or there is no telecommunication flow information monitoring at all, but utilize historical traffic flow data, more can not provide or dope the traffic flow modes of following a period of time, what provide down to existing navigational system is instantaneous guidance path, but not in good time guidance path; The information of the required reference of perception road guide comprehensively, for example: through the structural information of road (whether tunnel structure thing intact for road, bridge, and whether whether unrestrained water, cave in); Through the transport information of road (road saturation degree, the grade of service, crossing number); Through the management information of road (forbidden, odd or even number, in limited time, limit for height, whether one-way traffic); And through the environmental information (temperature, visibility, environmental quality, noise pollution) in region etc.Based on this, the application has proposed following scheme.
Please refer to Fig. 1, is the schematic flow sheet of the embodiment of vehicle real time navigation method provided by the invention.This flow process mainly comprises:
Step S11, navigation Service center receive the navigation demand information that vehicle mounted guidance terminal reports, and the demand information that wherein navigates comprises: destination information.
Step S12, navigation Service center are according to the various information relevant to road of storing in database, calculating vehicle mounted guidance terminal is at least one guidance path to destination by current location, and wherein the various information relevant to road comprise: the road information, the environmental information of expression road environment and the transport information of expression road traffic regulation and traffic behavior that represent road structure.
At least one guidance path calculating is fed back to vehicle mounted guidance terminal by step S13, navigation Service center.
The present embodiment is in the time of navigation, no longer only from electronic chart, to select one or several path from current location to destination to recommend user, but in the time calculating guidance path, consider fully the various information relevant to road, for example: environmental information, transport information etc., thereby make the guidance path that calculates more reasonable, when traveler adopts this more reasonably when guidance path, the line efficiency that of traveler will be contributed to improve, save its Trip Costs, can realization truly improve the situation of traffic congestion by means of navigation.
Continue as shown in Figure 1, realization can be developed based on cloud in navigation Service center wherein, because navigation Service center involves collection, storage and the renewal of road information, environmental information, transport information etc., and path computing based on these information, therefore the data volume of its required processing is that existing navigational system cannot be imagined, and cloud has the ability of mass memory, magnanimity calculating, therefore navigation Service center adopts Cloud Server and realizes, can optimized assurance navigation performance.
Continue as shown in Figure 1, navigation Service center feeds back at least one guidance path calculating after vehicle mounted guidance terminal, the omnidistance Voice Navigation of guidance path control vehicle mounted guidance terminal of selecting according to traveler, adopt the mode of omnidistance Voice Navigation can avoid driver to disperse energy to check navigation map, driver can be primarily focused on Vehicle Driving Cycle, improve the safety coefficient of driving.
Continue as shown in Figure 1, at least one guidance path that step S12 calculates can comprise: path, Minimum-time, cost shortest path, compromise path and the suitable trip of environment path (the environmental index of this paths reaches the requirement of setting) between between path, Minimum-time and cost shortest path.The present embodiment, no longer single recommends one or several path to user, but recommend path, cost shortest path, marginal path and the suitable trip of the environment path of Minimum-time to user, therefore traveler can select to be applicable to according to the demand of oneself the trip scheme of oneself, thereby meet traveler in many-sided requirement such as time, cost, improve the Experience Degree of traveler for navigational system.
Continue as shown in Figure 1, road information in step S12 can be from real-time satellite monitoring system, it comprises: road toll information and road structure thing security information, wherein road toll information spinner will refer to whether this section charges, and concrete fees policy, when will being the cost of calculating path, this information spinner considers; Road structure thing security information refers to whether road structure thing (mainly referring to highway, bridge, tunnel) occurs that fracture, unrestrained water, landslide etc. affect the situation that vehicle passes through.On this basis, road information can also more fully comprise the every aspect of road structure, for example: the linearity of road, turning angle, crossing number, has a lot of social connections etc.
Environmental information in step S12 can be from traffic weather administrative authority, it comprises: road visibility information and road Weather information, wherein visibility and weather (ice, frost, rain, snow etc.) are the principal elements that affects traffic, need special consideration, on this basis, can also comprise: temperature, wind speed, environmental quality etc.
Transport information in step S12 can be from road traffic monitoring system and vehicle supervision department, and it comprises: control traffic message, traffic control information, guidance information and traffic congestion condition information.Wherein control traffic message refers to whether this section occurs control, if there is control, can not pass through in this section, in the time of navigation, need to get rid of all paths that comprise this section; Traffic control information refers to the forbidden of this section, odd or even number, in limited time, limit for height, the whether information such as one-way traffic; Guidance information refers to condition of road surface, traffic congestion information, government notice, weather forecast etc.; Traffic congestion condition information refers to the information such as the road saturation degree in this section, if the saturation degree in this section reaches the situation of blocking up,, in the time considering path, should try one's best and not consider.In addition, transport information can also comprise: left-hand rotation, the right-hand rotation in traffic lights information, track, keep straight on and turn around and the information such as no turns, take traffic lights information as example, if the traffic lights quantity in certain path is many and the stand-by period is long between two places, even this shortest path, may be so also path consuming time, for the time is had, the traveler of high request be also inapplicable.
Continue as shown in Figure 1, is calculating before guidance path at navigation Service center, receives the real-time speed information of the vehicle that vehicle mounted guidance terminal reports, and this information can be gathered by the vehicle speed sensor of installing on vehicle, then passes to vehicle mounted guidance terminal.After having had speed information, navigation Service center is in the time calculating guidance path, the various information relevant to road that use can be the various information relevant with road to certain Shi Gai position, position according to the Vehicle Driving Cycle of speed information prediction in real time, in the time calculating navigation, the various information relevant to road of reference are close to actual situation more like this, especially when long-range navigation, effect is more remarkable.
Continue as shown in Figure 1, the navigation demand information of step S11 comprises: expect to reach the destination the time.Like this, in step S12, navigation Service center, will be according to real-time speed information in the time calculating guidance path, be controlled at the compromise path between between path, Minimum-time and cost shortest path that expectation reached the destination in the time computing time, to meet user's requirement.
Continue as shown in Figure 1, except the above-mentioned information relating to, the much informations relevant to vehicle self such as the type, oil consumption, discharge capacity of vehicle can also be accepted in navigation Service center, then in the time assessing the cost, for the concrete situation of every amount car, assess the cost, to determine the path for the cost-saving of every amount car.
For an example, how the present invention is attached to the embodiment in navigation by the various information relevant to road below.
As Fig. 2, suppose that traveler estimates from the A point B point that reaches the destination.According to critical path method (CPM) draw its shortest path be A-1.-2.-B, then judge A 1. whether path is feasible or eligible in good time, as shown in Figure 3, main in Fig. 3 what introduce is that the concept of threshold value is carried out the whether feasible or qualified judgement in path to deterministic process.In the time of capable nearly other paths of vehicle, system is Using such method also, thereby judging successively respectively whether other paths are feasible or whether need to change path realizes real-time navigation.If it is unavailable that a certain paths judges, and do not find suitable path within the specific limits, tune up its respective threshold and judge whether it can use.So circulation, until search out a path that meets traveler demand.As path planning can be used, without reminding user; As path planning has change, at car-mounted terminal and the new path planning of voice message traffic user, to reach the object of in good time navigation.
As a kind of expansion of the present invention, as shown in Figures 4 and 5, the embodiment of the present invention, in realizing navigation, has also realized accident early warning.
As shown in Figure 4, when navigation Service center monitors is to the lane change in violation of rules and regulations of A car, and may threaten the safety of target vehicle, navigation Service center reminds target vehicle to dodge in time A car immediately, to guarantee safety, and warn its unlawful practice of A car simultaneously, stop in time its lane change in violation of rules and regulations.
As shown in Figure 5, in the time that navigation Service center monitors arrives the A car emergency brake of target vehicle front, navigation Service center sends this information to target vehicle in time, to remind target vehicle suitably to maintain safe distance, to guarantee safety.
Above embodiment, adopt the technology of intelligent transportation cloud computing, this technology be mainly real-time calling, storage respectively from the information (information of vehicles layer) of vehicle self-condition, from the information (geography information layer) of real-time satellite monitoring system, from the information (environmental information layer) of traffic weather administrative authority, from the information (transport information layer) of road traffic monitoring system with from the information (traffic rules Information Level) of vehicle supervision department.And above vehicle real time navigation method not only can analyze present situation traffic flow, but also traffic flow that can predict future a period of time, thereby can greatly improve efficient that road navigation track provides, and path real-time online is with new, avoid the path ineffectivity of bringing because of road emergency situations, and omnidistance Voice Navigation, the dispersion to the notice of driving while having avoided reading map because of driver.
Please refer to Fig. 6, is the structural representation of the first embodiment of vehicle real time navigation device provided by the invention (being aforesaid navigation Service center).It mainly comprises:
Navigation demand receiver module 1, the navigation demand information reporting for receiving vehicle mounted guidance terminal, the demand information that wherein navigates comprises: destination information.
Guidance path computing module 2, for the various information relevant to road of storing according to database, calculating vehicle mounted guidance terminal is at least one guidance path to destination by current location, and wherein the various information relevant to road comprise: the road information, the environmental information of expression road environment and the transport information of expression road traffic regulation and traffic behavior that represent road structure.
Guidance path sending module 3, for feeding back to vehicle mounted guidance terminal by least one guidance path calculating.
The present embodiment is in the time of navigation, no longer only from electronic chart, to select one or several path from current location to destination to recommend user, but in the time calculating guidance path, consider fully the various information relevant to road, for example: environmental information, transport information etc., thereby make the guidance path that calculates more reasonable, when traveler adopts this more reasonably when guidance path, the line efficiency that of traveler will be contributed to improve, save its Trip Costs, can realization truly improve the situation of traffic congestion by means of navigation.
Continue as shown in Figure 6, vehicle real time navigation device wherein can be developed realization based on cloud, because vehicle real time navigation device involves collection, storage and the renewal of road information, environmental information, transport information etc., and path computing based on these information, therefore the data volume of its required processing is that existing navigational system cannot be imagined, and cloud has the ability of mass memory, magnanimity calculating, therefore vehicle real time navigation device adopts Cloud Server and realizes, can optimized assurance navigation performance.
Continue as shown in Figure 6, vehicle real time navigation device feeds back at least one guidance path calculating after vehicle mounted guidance terminal, select the omnidistance Voice Navigation of guidance path control vehicle mounted guidance terminal according to traveler, adopt the mode of omnidistance Voice Navigation can avoid driver to disperse energy to check navigation map, driver can be primarily focused on Vehicle Driving Cycle, improve the safety coefficient of driving.
Continue as shown in Figure 6, at least one guidance path that guidance path computing module 2 calculates can comprise: path, Minimum-time, cost shortest path and the compromise path between between path, Minimum-time and cost shortest path.The present embodiment, no longer only single recommended one or several path to user, but recommend path, cost shortest path and the marginal path of Minimum-time to user, therefore traveler can select to be applicable to according to the demand of oneself the trip scheme of oneself, thereby meet traveler in many-sided requirement such as time, cost, improve the Experience Degree of traveler for navigational system.
Continue as shown in Figure 6, road information wherein comprises: road toll information and road structure thing security information, wherein road toll information spinner will refer to whether this section charges, and concrete fees policy, when this information spinner will be the cost of calculating path, considers; Road structure thing security information refers to whether road structure thing (mainly referring to highway, bridge, tunnel) occurs that fracture, unrestrained water, landslide etc. affect the situation that vehicle passes through.On this basis, road information can also more fully comprise the every aspect of road structure, for example: the linearity of road, turning angle, crossing number, has a lot of social connections etc.
Environmental information wherein comprises: road visibility information and road Weather information, wherein visibility and weather (ice, frost, rain, snow etc.) are the principal elements that affects traffic, need special consideration, on this basis, can also comprise: temperature, wind speed, environmental quality etc.
Transport information wherein comprises: control traffic message, traffic control information, guidance information and traffic congestion condition information.Wherein control traffic message refers to whether this section occurs control, if there is control, can not pass through in this section, in the time of navigation, need to get rid of all paths that comprise this section; Traffic control information refers to the forbidden of this section, odd or even number, in limited time, limit for height, the whether information such as one-way traffic; Guidance information refers to condition of road surface, traffic congestion information, government notice, weather forecast etc.; Traffic congestion condition information refers to the information such as the road saturation degree in this section, if the saturation degree in this section reaches the situation of blocking up,, in the time considering path, should try one's best and not consider.In addition, transport information can also comprise: left-hand rotation, the right-hand rotation in traffic lights information, track, keep straight on and turn around and the information such as no turns, take traffic lights information as example, if the traffic lights quantity in certain path is many and the stand-by period is long between two places, even this shortest path, may be so also path consuming time, for the time is had, the traveler of high request be also inapplicable.
As shown in Figure 7, vehicle real time navigation device also comprises: information of vehicles receiver module 4, before calculating guidance path at guidance path computing module, the real-time speed information of the vehicle that reception vehicle mounted guidance terminal reports, this information can be gathered by the vehicle speed sensor of installing on vehicle, then passes to vehicle mounted guidance terminal.After having had speed information, guidance path computing module is in the time calculating guidance path, the various information relevant to road that use can be the various information relevant with road to certain Shi Gai position, position according to the Vehicle Driving Cycle of speed information prediction in real time, in the time calculating navigation, the various information relevant to road of reference are close to actual situation more like this, especially when long-range navigation, effect is more remarkable.
Continue as shown in Figure 7, the navigation demand information that navigation demand receiver module receives comprises: expect to reach the destination the time.Like this, guidance path computing module, will be according to real-time speed information in the time calculating guidance path, is controlled at the compromise path between between path, Minimum-time and cost shortest path that expectation reached the destination in the time computing time, to meet user's requirement.
Continue as shown in Figure 7, except the above-mentioned information relating to, information of vehicles receiver module 4 can also be accepted the much informations relevant to vehicle self such as the type, oil consumption, discharge capacity of vehicle, then in the time assessing the cost, for the concrete situation of every amount car, assess the cost, to determine the path of cost-saving.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (10)
1. a vehicle real time navigation method, is characterized in that: comprising:
Navigation Service center receives the navigation demand information that vehicle mounted guidance terminal reports, and described navigation demand information comprises: destination information;
Described navigation Service center is according to the various information relevant to road of storing in database, and calculating vehicle mounted guidance terminal is at least one guidance path to destination by current location;
Described at least one guidance path calculating is fed back to described vehicle mounted guidance terminal by described navigation Service center;
Wherein the various information relevant to road comprise: the road information, the environmental information of expression road environment and the transport information of expression road traffic regulation and traffic behavior that represent road structure.
2. vehicle real time navigation method as claimed in claim 1, is characterized in that: is calculating before guidance path at described navigation Service center, receives the real-time speed information of the vehicle that described vehicle mounted guidance terminal reports;
Described navigation Service center is in the time calculating guidance path, and the various information relevant to road of use are the various information relevant with road to certain Shi Gai position, position according to the Vehicle Driving Cycle of described real-time speed information prediction.
3. vehicle real time navigation method as claimed in claim 1 or 2, is characterized in that: described road information comprises: road toll information and road structure thing security information; Described environmental information comprises: road visibility information and road Weather information; Described transport information comprises: control traffic message, traffic control information, guidance information and traffic congestion condition information.
4. vehicle real time navigation method as claimed in claim 3, is characterized in that: described at least one guidance path that calculates comprise: path, Minimum-time, cost shortest path, compromise path and the suitable trip of environment path between between path, Minimum-time and cost shortest path.
5. the real-time navigation method of vehicle as claimed in claim 3, is characterized in that: described navigation demand information comprises: expect to reach the destination the time;
Described navigation Service center, in the time calculating guidance path, according to described real-time speed information, is controlled at the compromise path between between path, Minimum-time and cost shortest path that described expectation reached the destination in the time computing time.
6. vehicle real time navigation method as claimed in claim 1 or 2, it is characterized in that: realize based on cloud at described navigation Service center, described navigation Service center feeds back to described at least one guidance path calculating after described vehicle mounted guidance terminal, selects the omnidistance Voice Navigation of vehicle mounted guidance terminal described in described guidance path control according to traveler.
7. a vehicle real time navigation device, is characterized in that: comprising:
Navigation demand receiver module, the navigation demand information reporting for receiving vehicle mounted guidance terminal, described navigation demand information comprises: destination information;
Guidance path computing module, for the various information relevant to road of storing according to database, calculating vehicle mounted guidance terminal is at least one guidance path to destination by current location;
Guidance path sending module, feeds back to described vehicle mounted guidance terminal at least one guidance path that described guidance path computing module is calculated;
Wherein the various information relevant to road comprise: the road information, the environmental information of expression road environment and the transport information of expression road traffic regulation and traffic behavior that represent road structure.
8. vehicle real time navigation device as claimed in claim 7, is characterized in that: also comprise: information of vehicles receiver module, for calculating before guidance path at guidance path computing module, receives the real-time speed information of the vehicle that described vehicle mounted guidance terminal reports;
Described guidance path computing module, in the time calculating guidance path, the various information relevant to road of use are the various information relevant with road to certain Shi Gai position, position according to the Vehicle Driving Cycle of described real-time speed information prediction.
9. vehicle real time navigation device as claimed in claim 7 or 8, is characterized in that: described road information comprises: road toll information and road structure thing security information; Described environmental information comprises: road visibility information and road Weather information; Described transport information comprises: control traffic message, traffic control information, guidance information and traffic congestion condition information.
10. vehicle real time navigation device as claimed in claim 9, is characterized in that: described at least one guidance path that calculates comprise: path, Minimum-time, cost shortest path, compromise path and the suitable trip of environment path between between path, Minimum-time and cost shortest path.
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