• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:NL2009045A
    申请号:NL2009045
    申请日:2012-06-21
    公开日:2013-01-02
    发明作者:Jan Wietse Balkema；Peter Engel
    申请人:Bosch Gmbh Robert；
    IPC主号:
    专利说明:

    Title: Route planning method and navigation system
    The invention relates to a method for improving route planning, as well as a first and a second navigation system for carrying out the method.
    State of the art
    Well-known navigation systems are increasingly being used on board motor vehicles. With such a navigation system, for example, a route can be determined between a current position and a target position based on route information stored in a memory card. The route is usually determined in such a way that a predetermined parameter, for example a driving time, a driving route or road costs, is optimized. Combination solutions are also possible, for example, to implement a trade-off between an economic and a fast route.
    For improved route planning, additional information can be used that is not available in the memory card. Such additional information may include, for example, dynamic traffic information transmitted over TMC or manual input from a user of a navigation system. Navigation systems are also known which determine whether a driven route that deviates from a predetermined route leads to a better result with respect to predetermined parameters than the determined route. In this case, the actually used route can be selected for future route planning with preference.
    DE 101 46 098 A1 proposes a method for recording and storing additional digitized road information. A series of positions of the navigation system is then scanned and, based on the scanned positions, road information that goes beyond the information from a memory card is stored for future use.
    EP 1 221 587 BI proposes a navigation system, based on a similar approach, to provide a data carrier with updated and / or personalized navigation data.
    A persistent problem concerns the usability of the registered additional information that goes beyond that of the comprehensive navigation system. Proposed solutions, which are based on a kind of barter, so that a large number of navigation systems or users can exchange additional information, promote extensive assurance of data quality and can lead to the dissemination of data that can be assigned to a specific user , so that the personality rights of these can be compromised. In addition, individual user behavior that underlies certain additional information may be lost by mixing the additional information with additional information from other users.
    The invention solves this problem by means of a method with the features of claim 1, a computer program product with the features of claim 8 and by navigation systems with the features of claims 9 and 10. Further preferred embodiments are indicated in sub-claims.
    Revelation of the invention
    According to a first aspect of the invention, a method for improving a route planning comprises steps of scanning position information along a route by means of a first navigation system, of determining additional information that goes beyond route information of a memory card of the first navigation system , based on the position information and on passing on the additional information from the first navigation system directly to a second navigation system, to improve route planning in the range of the route through the second navigation system.
    According to the invention, the point-to-point transmission of the additional information from the first to the second navigation system can improve the data state in the receiving navigation system, without exposing the second navigation system to the risk of data of unknown origin . Use of an intermediate system, in particular for the exchange of additional information from a number of navigation systems, is avoided. The additional information can be displayed in a targeted and controlled manner, so that the user of the first navigation system can be guaranteed self-determination about information. Data protection problems can thus be avoided.
    In a particularly preferred embodiment, a distinction is made between different additional information. The additional information may relate to the route or to the user of the first navigation system or to a first motor vehicle, where the first navigation system is installed on board. Additional information related to the route can be sent unchanged. Additional information relating to the user of the first navigation system can be adapted to a user of the second navigation system. Additional information relating to the first motor vehicle can be adapted to a second motor vehicle where the second navigation system is installed on board.
    As a result, it is possible to provide the additional information provided by the first navigation system in the second navigation system in such a way that a maximum improvement of the route planning is made possible. The quality of the route planning is usually determined by means of an optimization criterion, for example to achieve a fast, an economic or a short route or a compromise thereof.
    In one embodiment, an assessment of the sent additional information for consistency with trajectory information from a memory card of the second navigation system can be made. In this way it is possible to prevent conflicting or otherwise non-credible data from being used unchecked for route planning of the second navigation system. Such an assessment can also take place between new and additional information received in advance.
    In a preferred embodiment, consistent additional information is taken over and inconsistent additional information is rejected or shown to a user of the second navigation system for review. The second user can accept or consider the additional information that conflicts with each other, so that the quality of the data available in the second navigation system, on the basis of which route planning must be carried out, can be of the highest possible quality. to have.
    The user of the second navigation system can also make a subjective or personal decision, so that the route to be planned by the second navigation system can take into account the wishes and preferences of the user of the second navigation system.
    According to a second aspect of the invention, a computer program product comprises program code means for carrying out the described method when the computer program product runs on a processing device or has been stored on a computer-readable data carrier.
    According to a third aspect of the invention, a first navigation system comprises a position-determining device for scanning position information along a route, an interface for a memory card with route information, a processing device for determining additional information, which goes beyond the route information of the memory card, on basis of the position information, and a relay device for transmitting the additional information directly to another navigation system, to improve route planning in the range of the route through the other navigation system.
    According to a fourth aspect of the invention, a second navigation system comprises an interface for a memory card with route information, a receiving device for receiving additional information along a route directly from another navigation system, and a device for route planning in the range of the route based on information from the memory card and from the additional information received.
    Each of the navigation systems can also include the features of the other navigation system, so that an exchange of additional information in both directions is possible between the two navigation systems in order to improve the route planning of both navigation systems.
    The navigation systems according to the invention make it possible to implement the method described above, in addition to improving the quality of a route determination, to increase the quality of the data available in each of the navigation systems and at the same time to guarantee the privacy of users of the navigation systems ,
    Brief description of the figures
    The invention will now be described in more detail with reference to the accompanying figures, wherein:
    Figure 1 shows two motor vehicles with assigned navigation systems;
    Figure 2 shows a schematic representation of a road network; and
    Figure 3 represents a flow chart of a route planning method.
    Accurate description of exemplary embodiments
    Figure 1 shows a first motor vehicle 105 with an assigned first navigation system 110 and a second motor vehicle 155 with an assigned second navigation system 160. The first motor vehicle 105 and the first navigation system 110 are assigned to a first user 115, while the second motor vehicle 155 and the second navigation system 160 is assigned to a second user 165.
    The first navigation system 110 includes a first processing device 120 connected to a first position determining device 125, a first memory card 130, a first additional storage 135, and a first interface 140. An interface for a memory card 130 may also be provided at the location of the memory card 130, which may be part of another system on board the first motor vehicle 105. The memory card 130 can also be arranged outside the motor vehicle 105, the interface being able to effect a wireless data transfer.
    The first position-determining device 125 comprises a device with popular technology for determining a position of the first navigation system 110 and the first motor vehicle 105, respectively. Preferably, the first position determining device 125 comprises a receiver for satellite navigation signals or an inertial platform.
    The first memory card 130 contains route information of a road network. Conventionally, the trajectory information is stored in compressed form on the first memory card 130. If an update of the database of the first navigation system 110 is carried out, the information reserved by the first memory card 130 is generally exchanged blockwise or completely. A change of the same stored route information is generally not foreseen.
    The first additional storage 135 comprises additional information which may influence a route planning and which is not stored in the first memory card 130. The additional information may include more current versions of the information stored in the first memory card 130 and / or information about the motor vehicle 105 or the first user 115. The first additional storage 135 may be a working memory or another popular storage device.
    The first interface 140 is adapted for this purpose to exchange additional information held in the first additional storage 135 directly with another navigation system such as, for example, with the second navigation system 160. The exchange can occur, for example, by means of a removable data carrier, possibly a storage card. In this case, the first additional storage 135 may also be identical to the removable data carrier. In further embodiments, a wireless connection or a cable connection with the other navigation systems can also be provided.
    Although a common storage medium may be provided for the first memory card 130 and for the first additional storage 135, the data files of the different storage 130, 135 are usually logically separated from one another, the trajectory information of the first memory card 130 being then also kept when for them conflicting additional information in the first additional storage 135 is available.
    The first processing device 120 is a conventional processing device, in particular a programmable microcomputer, for coordination and control of the components connected to it and for processing data supplied from these components.
    The second navigation system 160 comprises a second processing device 170, a second position determining device 175, a second memory card 180, a second additional storage 185 and a second interface 190. The components of the second navigation system 160 correspond in pairs to the components of the first navigation system described above 110.
    The first navigation system 110 is adapted to scan, by means of the first position-determining device 125, position information along a route which is driven by the first motor vehicle 105, and to isolate additional information from the series of the determined position information which is not is included in the path information of the first memory card 130.
    The additional information can be sent through the interfaces 140, 190 of the first navigation system 110 to the second navigation system 160, to provide the second navigation system 160 with an improved information basis for route planning in the range of the route traveled by the first motor vehicle 105.
    Figure 2 shows a schematic representation of a road network 200. The road network 200 comprises a first starting point S1, which is connected to a first goal Z1 via routes that run via route points A and B. Via a different route a second starting point S2 is connected to the trajectory point A and a second goal Z2 is connected to the trajectory point B. The route points A and B define a route 205, which lies both on the shortest connection from S1 to Z1 and also on the shortest connection from S2 to Z2.
    Furthermore, a trajectory point C is shown, which is connected via further trajectories to the trajectory point A and to the second goal Z2.
    The function of the navigation systems 110 and 160 on board the motor vehicles 105 and 155 will be explained in more detail with reference to the exemplary road network 200.
    On board the first motor vehicle 105 the route from S1 to Z1 is planned via the first navigation system 110 via the route points A and B on the basis of the available route information. When the trajectory 205 is subsequently driven between the trajectory points A and B, a row of position information is scanned by means of the first position-determining device 125 in order to record an actual road behavior of the first motor vehicle 105 on the trajectory 205.
    Subsequently, it is tested whether the determined road behavior differs from a road behavior that is predetermined on the basis of the route information in the first memory card 130. For example, if a travel time on the route 205 is clearly longer than predetermined, then a traffic disruption in the range of the route 205 can be assumed. A further analysis of the recorded positional information in the range of the trajectory 205 permits possible inferences about the nature of the traffic disruption. For example, slow-moving traffic in the range of the trajectory 205 can be distinguished that the user 115 has included in the range of the trajectory 205. By comparing the determined information with the route information, additional information is provided which is valid in the range of the route 205.
    The additional information determined in the first navigation system 110 is sent to the second navigation system 160 on board the second motor vehicle 155. A route from S2 to Z2 is then determined via the second navigation system 160. Since it is now known on the basis of the additional information received that a traffic disruption occurs in the range of the route 205, the planned route does not run over the route 205, but instead a route is supported that passes from S2 via the route points A and C leads to the second goal Z2. This route is indeed longer, but with regard to a quality criterion that takes into account a driving time between S2 and Z2, the particular route may prove to be more favorable.
    Figure 3 shows a flow chart of a method 300 for route planning. The method 300 is particularly suitable for implementation in the navigation systems 110 and 160.
    The method 300 starts with a step 305, which is carried out by the first navigation system 110 on board the first motor vehicle 105. In the step 305, position information is scanned by means of the first position-determining device 125, while the path 205 of Figure 2 is driven.
    Subsequently, in a step 310, the determined position information is compared with trajectory information available in the first memory card 130. On the basis of the comparison, in a subsequent step 315 additional information is isolated which relates to the path 205 and in particular represents more up-to-date, more detailed or more realistic information than the information in the first memory card 130.
    In a next step 320, the determined additional information is divided by its nature. Usually, several factors are included in the determined additional information, some of which relate to the actual route 205, others to the first motor vehicle 105 or the first user 115 of the first motor vehicle 105. In order to be able to appropriately process the additional information isolated in step 315 according to each of their positions aboard the second motor vehicle 155 by the second navigation system 160, the division in step 320 follows predetermined aspects. To that end, the scanned position information can be subjected to a renewed assessment.
    In one embodiment, the additional information may also be classified by evaluation of accompanying information to produce a relationship of the additional information for the path 205 to the first motor vehicle 105 and / or to the first user 115. Such accompanying information may be, for example, fuel consumption or a recognized traffic sign. In one embodiment, the accompanying information may be scanned simultaneously with the position information in step 305.
    Additional information, which relates exclusively to the route 205, includes, for example, the precise course or traffic resistance of the route 205.
    Additional information relating to the first motor vehicle 105 concerns, for example, an acceleration capacity of the first motor vehicle 105. Further information about the first motor vehicle 105, such as, for example, a vehicle type (passenger car or truck), vehicle dimensions and a maximum load capacity can be used, to select from the additional information such information relating to the first motor vehicle 105.
    Additional information relating to the first user 115 can be determined in dependence on a driver profile previously provided to the first navigation system 110 or a usual behavior of the first user 115 can be determined on the basis of the scanned position information. Also additional information, which the first user 115 has entered manually in the first navigation system 110, also falls into this category.
    Subsequently the shared additional information is sent in a step 325 to the second navigation system 160. Preferably, the additional information sent comprises instructions about the conditions of its usability, for example position information or a determination time of the additional information. After the transfer, in a step 330 the additional information relating to a user is adapted, whereby she is again involved with the second user 165. Similarly, in a step 335, the additional information relating to a vehicle is adapted, whereby it is again related to the second motor vehicle 155. The additional information relating to a route, on the other hand, is taken over unchanged.
    In the embodiment shown, the second navigation system 160 adjusts the steps 330 and 335 after transmission in the step 325. In variants of the method 300, dividing the additional information in the step 320 can send in the step 325 and adjusting in steps 330 and 335 are also performed in a different order, whereby some of these steps can be performed by the first navigation system 110.
    In a step 340, the received and optionally adjusted additional information is subjected to a consistency test. If an inconsistency or collision of additional information with route information is determined, the underlying information can be displayed to the second user 165 of the second navigation system 160 in a step 345. The second user 165 can make an assessment of the conflicting information, which is scanned in the next step 350. The priority-valued information is used below as binding and more relevant than the priority-valued information. In another embodiment, an automatic assessment may occur, which is based, for example, on the age of the additional information, so that, for example, new additional information is valued higher than route information and older additional information lower.
    Once that consistency test has been completed, the additional information is stored in a step 355 in the second additional storage 185. Subsequent route planning by the second navigation system 160 in a step 360 can then be implemented in the second additional storage 185 on the basis of the route information held in the second memory card 180 and additionally on the basis of the received and modified additional information.
    权利要求:
    Claims (10)
    [1]
    A method (300) for improving route planning, the method comprising the steps of: sensing (305) position information along a trajectory (205) through a first navigation system (110); determining (310, 315) additional information that goes beyond trajectory information from a memory card (130) of the first navigation system (110) based on the position information; characterized by transmitting (325) the additional information from the first navigation system (110) directly to a second navigation system (160), to improve route planning in the range of the route (205) through the second navigation system (160).
    [2]
    The method (300) of claim 1, wherein additional information relating to the trajectory is passed unchanged (325).
    [3]
    The method (300) of claim 1 or 2, wherein additional information relating to a user (115) of the first navigation system (110) is adapted (330) to a user (165) of the second navigation system (160) is becoming.
    [4]
    A method (300) according to any one of the preceding claims, wherein the first navigation system (110) can be fitted on board a first motor vehicle (105) and the second navigation system (160) can be fitted on board a second motor vehicle (155) and additional information relating to the first motor vehicle (105) is adapted (335) to the second motor vehicle (155).
    [5]
    The method (300) of any one of claims 2 to 4, wherein the additional information is distinguished (320) based on its relationship.
    [6]
    The method (300) of any one of the preceding claims, further comprising an assessment (340) of the transmitted additional information for consistency with trajectory information from a memory card (180) of the second navigation system (160).
    [7]
    The method (300) of claim 6, wherein consistent additional information taken over and inconsistent additional information is displayed (345) to a user (165) of the second navigation system (160).
    [8]
    A computer program product with program code means for performing the method (300) according to any one of the preceding claims, when the computer program product runs on a processing device (120, 170) or is stored on a computer-readable data carrier.
    [9]
    A navigation system (110), comprising: a position determining device (125) for scanning position information along a path (205); an interface for a memory card (130) with path information; a processing device (120) for determining additional information that goes beyond the path information of the memory card (130) based on the position information; and a relay device (140) for forwarding the additional information directly to another navigation system (160), to improve route planning in the range of the route (205) through the other navigation system (160).
    [10]
    A navigation system (160) comprising: an interface for a memory card (180) with trajectory information; a receiving device (190) for receiving additional information along a path (205) directly from another navigation system (110); a device (170) for route planning in the range of the route (205) based on information from the memory card (180) and from the received additional information.
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    NL2009045C2|2014-08-13|
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    引用文献:
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    法律状态:
    2022-02-02| MM| Lapsed because of non-payment of the annual fee|Effective date: 20210701 |
    优先权:
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    DE102011077952A|DE102011077952A1|2011-06-22|2011-06-22|Method for improving route planning of navigation system installed in motor vehicle, involves transmitting additional information from navigation system directly to another navigation system|
    DE102011077952|2011-06-22|
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