CN101532846B - Road navigation method and device - Google Patents

Road navigation method and device Download PDF

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Publication number
CN101532846B
CN101532846B CN 200910082495 CN200910082495A CN101532846B CN 101532846 B CN101532846 B CN 101532846B CN 200910082495 CN200910082495 CN 200910082495 CN 200910082495 A CN200910082495 A CN 200910082495A CN 101532846 B CN101532846 B CN 101532846B
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path
navigation
step
driver
dangerous
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CN 200910082495
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CN101532846A (en )
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张远见
金水祥
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北京四维图新科技股份有限公司
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Abstract

The invention provides a road navigation method and a device. The method comprises the followings: step A, at least one path from the place of departure to the destination is computed and obtained according to a road data model; step B, a navigation path selected by a driver from the at least one path is received; step C, whether a dangerous section exists on the currently selected navigation path is judged according to the information of the dangerous section of the road data model; if so, corresponding information of the dangerous section is promoted to the driver and step D comes out; otherwise, guiding is carried out according to the currently selected navigation path so that the flow path is ended; step D, the command inputted by the driver is received and analyzed: step B is returned when the command indicates reselecting navigation path; otherwise, the guiding is carried out according to the currently selected navigation path, and corresponding dangerous information of the dangerous section is promoted to the driver before the driver arrives at the dangerous section. According to the invention, the driving safety of the driver can be improved.

Description

一种道路导航方法及装置 A road navigation method and apparatus

技术领域 FIELD

[0001] 本发明涉及导航技术领域,具体的,涉及一种道路导航方法及装置。 [0001] The present invention relates to the field of navigation technology, particularly, it relates to a road navigation method and apparatus. 背景技术 Background technique

[0002] 全球定位系统(GPS,Global Position System)车载导航系统能够给驾驶证提供驾驶引导,极大地方便了驾驶者的出行,越来越多的机动车都开始装配GPS导航系统。 [0002] Global Positioning System (GPS, Global Position System) car navigation system to guide the driver to provide a driver's license, which greatly facilitates the travel of motorists, more and more are beginning to assemble a motor vehicle GPS navigation system.

[0003] 由于道路情况的复杂性,驾驶者从出发地到目的地之间的行驶路径上可能存在着影响到驾驶者驾驶安全的各种因素,如急转弯。 [0003] Due to the complexity of the road conditions, drivers there are various factors that affect the driver's driving safety to travel from the origin to the destination path between possible, such as sharp turns. 目前,市场上的GPS车载导航系统虽然能够实现针对用户设定目的地的正确引导,但大都没有考虑到驾驶者的驾驶安全。 Currently, GPS car navigation systems on the market even though it can achieve the correct guide for the user to set a destination, but most did not take into account the driving safety of the driver.

发明内容 SUMMARY

[0004] 本发明所要解决的技术问题是提供一种道路导航方法及装置,通过预先规划驾驶者的行驶路径以规避驾驶危险,提高了驾驶者的驾驶安全。 [0004] The present invention solves the technical problem is to provide a method and apparatus for road navigation, pre-planning by the driver's travel path to avoid dangerous driving and improve the driving safety of the driver.

[0005] 为解决上述技术问题,本发明提供方案如下: [0005] To solve the above problems, the present invention provides the following solutions:

[0006] 一种道路导航方法,包括: [0006] A road navigation method, comprising:

[0007] 步骤A,根据预先建立的道路数据模型,计算得到出发地到目的地的至少一条路径; [0007] Step A, according to the road data of a pre-established model, the departure point to the destination is calculated at least one path;

[0008] 步骤B,向驾驶者提供所述至少一条路径的信息,并接收驾驶者从所述至少一条路径中选择的导航路径; [0008] Procedure B, the at least one path providing information to the driver, and the driver receives the navigation route selected from the at least one path;

[0009] 步骤C,根据所述道路数据模型中预先建立的危险路段的信息,判断当前选择的导航路径上是否存在危险路段,并在判断出当前选择的导航路径上存在危险路段时,则向驾驶者提示相应的危险路段信息; [0009] Procedure C, according to the information of the road model in the pre-established data dangerous road segment, determines whether there is a dangerous road currently selected navigation route, and when it is determined that the presence of dangerous road sections on the currently selected navigation route, to the the driver of dangerous sections corresponding prompt information;

[0010] 步骤D,接收并解析驾驶者输入的指令:在所述指令指示重新选择导航路径时返回步骤B;否则,根据当前选择的导航路径进行引导,并在驾驶者到达所述危险路段前向驾驶者提示所述危险路段上相应的危险信息。 [0010] Procedure D, receives and parses the instruction input by the driver: when returns to the step indicated by the instruction B reselection navigation path; otherwise, the guide according to the currently selected navigation route, and the driver before reaching the dangerous road to prompt the driver information corresponding to the dangerous road hazard.

[0011 ] 优选地,上述道路导航方法中,所述步骤C中,在判断出当前选择的导航路径上不存在危险路段时,则根据当前选择的导航路径进行引导并结束流程。 [0011] Preferably, the above-described road navigation method, the step C, when it is determined that the dangerous road does not exist on the currently selected navigation route, the navigation route for guiding the currently selected and ends the process.

[0012] 优选地,上述道路导航方法中,所述步骤A中,进一步判断所述至少一条路径是否只有一条:若是,则选择该路径作为导航路径并进入步骤E ;否则,进入步骤C ; [0012] Preferably, the above-described road navigation method, the step A, the at least one further determines whether only one path: if yes, select the route as the route navigation and proceeds to step E; otherwise, goes to step C;

[0013] 步骤E,根据当前选择的导航路径进行引导并结束流程,其中,在引导过程中,进一步根据所述道路数据模型中预先建立的危险路段的信息,判断出当前选择的导航路径上存在的危险路段,并在驾驶者到达危险路段前向驾驶者提示危险路段上相应的危险信息。 [0013] Step E, boots according to the currently selected navigation route and ends the process, wherein during the boot process, based on the information of the road data is further pre-established model of dangerous road sections, determines that there is a currently selected navigation path the dangerous road to reach prompt and appropriate hazard information on the dangerous road to the driver before the driver's dangerous sections.

[0014] 优选地,上述道路导航方法中,所述在驾驶者到达所述危险路段前向驾驶者提示所述危险路段上相应的危险信息是:在驾驶者与所述危险路段之间的距离达到预定的告警距离时,通过语音向驾驶者提示所述危险路段上相应的危险信息。 [0014] Preferably, the above-described road navigation method, when the driver reaches the front sections of the breakneck prompt to the driver on the corresponding risk of dangerous road information is: the distance between the driver and the dangerous road sections alarm reaches a predetermined distance, the voice prompt corresponding to the risk of the dangerous road information to the driver.

[0015] 优选地,上述道路导航方法中,所述危险路段是存在有预定危险因素的路段,所述危险路段具体包括:急转弯路段、多弯道路段、陡坡路段和存在障碍物的路段。 [0015] Preferably, the above-described road navigation method, the presence of the dangerous road link has a predetermined risk factors, the risk of sections comprises: a sharp turn sections, multi-curve section, and the steep slope segment road obstacle exists.

[0016] 优选地,上述道路导航方法中,在所述步骤A之前还包括:根据驾驶者预先输入的各种危险路段的危险指数,在所述道路数据模型中预先设置各种危险路段的危险指数; [0016] Preferably, the above-described road navigation method, prior to said step A further comprising: a risk index according to a variety of dangerous road driver input in advance, in the data model of the road set in advance hazardous sections of the dangers index;

[0017] 所述步骤A中,在计算得到所述至少一条路径后,进一步根据所述道路数据模型中预先设置的危险路段信息,确定各个路径上所包括的危险路段;根据预先设置的各种危险路段的危险指数,统计各条路径的危险指数;根据各条路径的危险指数,选择出危险指数最低的路径,并提示驾驶者是否选择最安全的导航路径进行引导:在接收到驾驶者的确认指示后,根据所述危险指数最低的路径进行引导;在接收到驾驶者的否决指示后,进入步骤B0 After [0017] In said step A, said at least one path is calculated, according to a further dangerous road information of the road model data set in advance, the respective paths is determined dangerous sections included; set in advance according to various risk index dangerous sections, the statistical risk index of each path; according to the risk index of each path, choose the path of least risk index, and indicates to the driver whether to choose the safest navigation paths guide: Upon receiving the driver's after confirmation indication, according to the guide path of the lowest risk index; rejection after receiving an indication of the driver proceeds to step B0

[0018] 优选地,上述道路导航方法中,在所述道路数据模型中建立所述危险路段的信息包括:根据预先采集的危险路段信息,在所述道路数据模型中与危险路段对应的数据结构中增加: Information [0018] Preferably, the above-described road navigation method, establishing the dangerous road sections in the data model comprising: the dangerous road information collected in advance, in the road data model data structure corresponding to the dangerous sections added:

[0019] 危险路段的危险节点ID; [0019] risk of dangerous road node ID;

[0020] 危险节点连接的道路路段; [0020] dangerous road link connected to the node;

[0021] 该危险节点ID对应的危险类型; [0021] The risk of hazardous node type corresponding to the ID;

[0022] 该危险节点ID对应的车辆类型; [0022] The risk of the vehicle type corresponding to the node ID;

[0023] 该危险节点ID对应的告警距离; [0023] The danger warning distance corresponding to the node ID;

[0024] 危险路段上存在危险的时间范围。 Danger exists on time [0024] dangerous road.

[0025] 本发明还提供了一种道路导航装置,包括路径计算单元、第一交互单元、判断单元、第二交互单元、第一导航单元和第二导航单元;其中, [0025] The present invention also provides a road navigation apparatus includes a path calculation unit, a first interactive unit, determining unit, the second interaction means, a first navigation unit and a second navigation unit; wherein,

[0026] 所述路径计算单元,用于根据预先建立的道路数据模型,计算得到出发地到目的地的至少一条路径,并触发所述第一交互单元; [0026] The path calculation unit, based on the road data for a pre-established model, the departure point to the destination is calculated at least one path, and triggering the first interactive unit;

[0027] 所述第一交互单元,用于根据所述路径计算单元或第二交互单元的触发,向驾驶者提供所述至少一条路径的信息,并在接收驾驶者从所述至少一条路径中选择的导航路径后,触发所述判断单元; [0027] The first interaction means, and second interaction means for triggering calculation unit according to the path, providing at least one driver the information of the path, and the driver receives from the at least one path after selecting the navigation route, triggering the determination unit;

[0028] 所述判断单元,用于在接收到所述第一交互单元的触发后,根据所述道路数据模型中预先建立的危险路段的信息,判断当前选择的导航路径上是否存在危险路段:若是,则向驾驶者提示相应的危险路段信息并触发所述第二交互单元;否则,触发所述第一导航单元; [0028] The determination unit is configured to trigger after receiving the first interactive unit, according to the information of the road model in the pre-established data dangerous road segment, the segment is determined whether there is a risk of the currently selected navigation route: if so, the driver is prompted to link information and the corresponding risk of triggering the second interaction means; otherwise, triggering the first navigation unit;

[0029] 所述第二交互单元,用于根据所述判断单元的触发,接收并解析驾驶者输入的指令:在所述指令指示重新选择导航路径时触发所述第一交互单元;否则,触发所述第二导航单元; [0029] The second interaction means for judging according to the trigger unit receiving and parsing instruction input by the driver: triggering the first interaction means when said instruction indicates reselection navigation path; otherwise, triggering the second navigation unit;

[0030] 所述第一导航单元,用于根据当前选择的导航路径进行引导; [0030] The first navigation unit for performing route guidance navigation currently selected;

[0031] 所述第二导航单元,用于根据当前选择的导航路径进行引导,并在驾驶者到达所述危险路段前向驾驶者提示所述危险路段上相应的危险信息。 [0031] the second navigation unit for performing route guidance navigation currently selected, and prompts the driver reaches the corresponding risk of the dangerous road information to a driver before the dangerous road.

[0032] 优选地,上述的道路导航装置中,还包括危险指数设置单元和第三导航单元;其中, [0032] Preferably, the above-described road navigation apparatus, further comprising a risk index setting unit and a third navigation unit; wherein,

[0033] 所述危险指数设置单元,用于根据驾驶者预先输入的各种危险路段的危险指数, 在所述道路数据模型中预先设置各种危险路段的危险指数;[0034] 所述路径计算单元,进一步用于在计算得到所述至少一条路径后,根据所述道路数据模型中预先设置的危险路段信息,确定各个路径上所包括的危险路段;根据预先设置的各种危险路段的危险指数,统计各条路径的危险指数;根据各条路径的危险指数,选择出危险指数最低的路径,并提示驾驶者是否选择最安全的导航路径进行引导:在接收到驾驶者的确认指示后,触发所述第三导航单元;在接收到驾驶者的否决指示后,触发所述第一交互单元。 [0033] The risk index setting unit, according to the risk index for various dangerous road driver input in advance, in the data model of the road set in advance dangerous sections of various risk index; [0034] The path computation after the unit is further configured to calculate the at least one path, the dangerous road information according to the data model of the road set in advance, the respective paths is determined dangerous sections included; in accordance with various dangerous road set in advance risk index statistical risk index of each path; according to the risk index of each path, choose the path of least risk index, and indicates to the driver whether to choose the safest navigation paths guide: after receiving an acknowledgment indication driver, trigger the third navigation unit; after receiving the indication of the driver's rejection, triggering the first interactive unit.

[0035] 所述第三导航单元,用于根据所述危险指数最低的路径进行引导。 [0035] The third navigation unit for performing route guidance based on the lowest of said risk index.

[0036] 优选地,上述道路导航装置中,还包括一直接导航单元,所述路径计算单元包括一判断子单元; [0036] Preferably, the above-described road navigation apparatus, further comprising a direct navigation unit, the path computation unit comprises a determining subunit;

[0037] 所述判断子单元,用于判断所述至少一条路径是否只有一条:若是,则选择该路径作为导航路径并触发所述直接导航单元;否则,触发所述第一交互单元; [0037] The determining subunit, configured to determine the at least one path is only one: if yes, select the path as a direct navigation route and trigger the navigation unit; otherwise, triggering the first interactive unit;

[0038] 所述直接导航单元,用于根据当前选择的导航路径进行引导,并在引导过程中,根据所述道路数据模型中预先建立的危险路段的信息,判断出当前选择的导航路径上存在的危险路段,并在驾驶者到达危险路段前向驾驶者提示危险路段上相应的危险信息。 [0038] The direct navigation means for guiding the currently selected navigation route, and the boot process, based on the information of the road model in the pre-established data dangerous sections, it is determined that the currently selected navigation path exists the dangerous road to reach prompt and appropriate hazard information on the dangerous road to the driver before the driver's dangerous sections.

[0039] 优选地,上述道路导航装置中,所述第二导航单元,进一步用于在驾驶者与所述危险路段之间的距离达到预定的告警距离时,通过语音向驾驶者提示所述危险路段上相应的危险信息。 When [0039] Preferably, the above-described road navigation apparatus, the second navigation unit is further configured to a distance between the driver and the dangerous road reaches a predetermined warning distance, suggesting the risk of the driver by voice corresponding information on dangerous roads.

[0040] 优选地,上述道路导航装置中,所述危险路段是存在有预定危险因素的路段,所述危险路段具体包括:急转弯路段、多弯道路段、陡坡路段和存在障碍物的路段。 [0040] Preferably, the above-described navigation device a road, the road hazard is the presence of risk factors for a predetermined road segment, the dangerous sections comprises: sharp turn sections, multi-curve section, and the steep slope segment road obstacle exists.

[0041] 优选地,上述道路导航装置中,还包括: [0041] Preferably, the above-described road navigation apparatus, further comprising:

[0042] 危险路段建立单元,用于根据预先采集的危险路段信息,在所述道路数据模型中与危险路段对应的数据结构中增加: [0042] The dangerous road establishing means according to the dangerous road information collected beforehand, corresponding to the increased risk of the link data in the road data structure model:

[0043] 危险路段的危险节点ID ; [0043] risk of dangerous road node ID;

[0044] 危险节点连接的道路路段; [0044] dangerous road link connected to the node;

[0045] 该危险节点ID对应的危险类型; [0045] The risk of hazardous node type corresponding to the ID;

[0046] 该危险节点ID对应的车辆类型; [0046] The risk of the vehicle type corresponding to the node ID;

[0047] 该危险节点ID对应的告警距离; [0047] The danger warning distance corresponding to the node ID;

[0048] 危险路段上存在危险的时间范围。 Danger exists on time [0048] dangerous road.

[0049] 从以上所述可以看出,本发明提供的道路导航方法及装置,在道路数据模型中增加危险路段信息,在对驾驶者正式引导之前根据危险路段信息提示路径上的危险,从而可以在规划驾驶者的行使路径时就先行避开存在危险的行驶路径,达到提高驾驶安全的目的。 [0049] As can be seen from the above, road navigation method and apparatus provided by the present invention, increases the risk of data link information in the road model, the risk of information presentation to the driver before the path guide according to the official dangerous, can be when planning exercise rider on a path leading away from the danger of traveling path, the purpose of improving driving safety. 并且,本发明还进一步在道路数据模型中根据驾驶者输入设置不同危险路段的危险指数,进而在路径计算时统计各种可行路径的危险指数并提供最适合该驾驶者的导航路径, 从而进一步提高了驾驶者的驾驶安全。 The present invention further provided a road input data model according to the risk index different from a driver of dangerous road sections, and thus the statistical risk index various possible paths to calculate the path and provide the best navigation route for the driver, thereby further improving driving safety of the driver.

附图说明 BRIEF DESCRIPTION

[0050] 图1为本发明实施例所述道路导航方法的流程图; [0050] The embodiment of FIG. 1 is a flowchart of the road navigation method embodiment of the invention;

[0051] 图2为本发明实施例所述道路导航装置的结构示意图。 [0051] FIG. 2 is a schematic configuration example of the road navigation device embodiment of the present invention. 具体实施方式 detailed description

[0052] 本发明提供的道路导航方法及装置,在对驾驶者正式引导之前预先规划好驾驶者的行使路径,以期避开存在危险的行驶路径,从而达到提高驾驶安全的目的。 [0052] road navigation method and device provided by the invention, before the official guide the driver to exercise a pre-planned route of the driver, in order to avoid the danger of traveling path, so as to improve driving safety. 以下将结合附图通过具体实施例对本发明作进一步的说明。 The accompanying drawings in conjunction with the following specific examples further illustrate the present invention.

[0053] 本实施例预先采集的危险路段信息,并在制作导航电子地图时将危险路段信息建立在道路数据模型中。 [0053] The present embodiment of the dangerous road information collected beforehand embodiment, and in the production of dangerous road navigation map information based on the road data model. 这里,所述的危险路段是指对驾驶者驾驶安全存在不良影响的路段, 例如,如交通标识牌中示出的各种危险路段,包括急转弯路段、多弯道路段、陡坡路段、落石多发路段和存在障碍物的路段等等。 Here, the segment refers to the presence of dangerous sections adverse effect on the driver's safe driving, for example, as illustrated in traffic signage various dangerous road sections comprising a sharp turn, the multi-curve section, steep road, falling rocks multiple road and there is an obstacle in the road, and so on. 驾驶者在这些危险路段上行驶时需要格外的小心以避免发生交通意外事故。 Need to be extra careful to avoid traffic accidents when driving on dangerous sections of these drivers.

[0054] 请参照图1,本实施例所述的道路导航方法包括以下步骤: [0054] Referring to FIG 1, the embodiment of the present embodiment is a road navigation method comprising the steps of:

[0055] 步骤11,根据预先建立的道路数据模型,计算得到出发地到目的地的至少一条路径。 [0055] Step 11, the data model according to a pre-established path, the departure point to the destination is calculated to obtain at least one path.

[0056] 这里,GPS导航系统确定驾驶者的当前位置(出发地),接收驾驶者输入的目的地, 然后根据道路数据模型计算出发地到目的地的路径,该路径可能有一条、两条或多条。 [0056] Here, GPS navigation systems determine a current position of the driver (the departure point), receives a destination input by the driver, based on the road data model and then calculates the point of departure to a destination, the route may have one, two, or many lines.

[0057] 步骤12,向驾驶者提供所述至少一条路径的信息,并接收驾驶者从所述至少一条路径中选择的导航路径。 [0057] Step 12, the at least one path providing information to the driver, and the driver receives the navigation route from the at least one selected route.

[0058] 这里,GPS导航系统可以通过屏幕向驾驶者显示步骤11中计算得到的路径信息, 以提供给用户选择。 [0058] Here, GPS navigation system may display the path information calculated in step 11 to the driver through a screen, to provide the user selection. 驾驶者可以通过各种输入方式,如触摸屏、键盘输入等方式输入其所选择的导航路径。 The driver can input a variety of ways, such as a touch screen, keyboard input, etc. navigation route of its choice.

[0059] 步骤13,根据所述道路数据模型中预先建立的危险路段的信息,判断当前选择的导航路径上是否存在危险路段:若是,则进入步骤15 ;否则,进入步骤14 ; [0059] Step 13, according to the information of the road model in the pre-established data dangerous road segment, the segment is determined whether there is a risk of the currently selected navigation route: if yes, the process proceeds to step 15; otherwise, proceeds to step 14;

[0060] 步骤14,根据当前选择的导航路径进行引导并结束流程; [0060] Step 14, guided navigation path of the current selection and the flow is ended;

[0061] 步骤15,向驾驶者提示相应的危险路段信息,接收驾驶者输入的指令,根据所述指令判断是否重新选择导航路径:在所述指令指示重新选择导航路径时返回步骤12 ;否则, 进入步骤16 ; [0061] Step 15, prompting the driver to dangerous sections corresponding information, receives an instruction input by the driver determines whether the navigation route reselection according to the instruction: returns to step 12 when the instruction indicates reselection navigation path; otherwise, proceeds to step 16;

[0062] 步骤16,根据当前选择的导航路径进行引导,并在驾驶者到达所述危险路段前向驾驶者提示所述危险路段上相应的危险信息。 [0062] Step 16, guided navigation path of the current selection, and prompts the driver reaches the corresponding risk of the dangerous road information to a driver before the dangerous road.

[0063] 这里,在驾驶者选择了导航路径之后,GPS导航系统并没有直接开始引导,而是判断驾驶者选择的导航路径上是否存在危险路段,并在存在危险路段时向驾驶者提示相应的危险路段信息。 Prompt to the driver when the [0063] Here, after the driver selects the route navigation, GPS navigation system begins to boot not directly, but is determined whether there is a dangerous road selected by the driver on the navigation route, and in the presence of dangerous sections corresponding dangerous road information. 不同的驾驶者具有不同的驾驶技能,驾驶者可以根据GPS导航系统提供的危险路段信息来判断自己是否能够在该危险路段上行驶,进而决定是否需要选择其它的路径进行导航。 Different drivers have different driving skills, the driver can determine whether they can travel on this dangerous road, and then decide whether to choose a different route to navigate the dangerous road information based on GPS navigation system provides. 如果驾驶者选择其它的路径进行导航,则返回步骤12,以重新提供给驾驶者可选择的路径进行选择;如果驾驶者选择了具有危险路段的导航路径,GPS导航系统在驾驶者与所述危险路段之间的距离达到预定的告警距离时,可以通过语音向驾驶者提示所述危险路段上相应的危险信息。 If the driver selected for further navigation path, returns to step 12 to again provide an alternative route to the driver selected; if the driver selects the navigation route having dangerous sections, GPS navigation system and the driver of dangerous when the distance between the sections of the alarm reaches a predetermined distance, may be prompted to the appropriate risk dangerous road information to the driver by voice. 当然,在由步骤15返回步骤12后,还可以从上次提供给驾驶者选择的路径中减去驾驶者上一次所选择的导航路径后形成新的路径,再将该新的路径提供给驾驶者,由驾驶者从该新的路径中选择一条导航路径。 Of course, after the step returns to step 1215, it may also be provided from the last to form a new path after the path selected by the driver by subtracting a selected navigation route on the driver, and then supplies the new path to the driver who choose a new navigation path from the path by the driver.

[0064] 通过以上流程,本实施例在正式引导之前,根据路径上的危险路段信息,对驾驶者的行驶路径进行提前规划,驾驶者可以避开存在危险路段的路径,从而能够提高驾驶者的驾驶安全。 [0064] Through the above process, the present embodiment before the official guide, according to dangerous road information on the route, the driver travel path planning in advance, the driver can avoid the danger of the path sections, thereby improving the driver's driving safety.

[0065] 以下说明本实施例是如何在在现有导航系统的功能基础上,增加制作道路危险信息的内容。 [0065] The present embodiment described below is how the conventional navigation system function based on the increase in content production dangerous road information.

[0066] 本实施例根据预先采集的危险路段信息,在所述道路数据模型中与危险路段对应的数据结构中增加:危险路段的危险节点ID ;该危险节点ID对应的危险类型;该危险节点ID对应的车辆类型;该危险节点ID对应的告警距离;危险路段上存在危险的时间范围。 [0066] According to the present embodiment, the dangerous road information collected in advance, corresponding to the increased risk of the link data in the road data structure model: risk of dangerous road node ID; node ID corresponding to the risk of hazardous type; this risk node ID corresponds to a vehicle type; node ID corresponding to the hazard warning distance; dangerous time present on the dangerous road.

[0067] 具体的,如下表1所示,本实施例是在道路数据模型(电子数据)的路段(用LINK 表示)中制作危险信息:根据预先采集的实际道路情况,建立道路数据模型,并在道路数据模型中按照“线-点”的结构记录危险信息的位置、类型及附属信息(附属信息包括车辆类型、告警距离、时间范围等)。 [0067] Specifically, as shown in Table 1, in the present embodiment is a road link data model (electronic data) (represented by LINK) prepared danger message: According to the actual road condition acquired pre-established model of road data, and location History hazard information structure - "dot line", and the type of auxiliary information (auxiliary information including vehicle type, alarm distance, time, etc.) according to road data model.

[0068] [0068]

Figure CN101532846BD00091

[0069] 表1 [0069] TABLE 1

[0070] 表1中,NODE ID表示危险路段的危险节点ID ; In [0070] Table 1, NODE ID represents the node ID risk of dangerous road sections;

[0071] LINK ID表示与该危险节点ID相连的从驾驶方向到达该节点的路段的ID ; [0071] LINK ID represents the node from reaching the driving direction of the link connected to the hazardous node ID ID;

[0072] TYPE表示危险路段的危险类型,如注意落石、急转弯、陡坡路段等; [0072] TYPE indicates the type of risk of dangerous road sections, such as attention falling rocks, sharp turns, steep road and the like;

[0073] 车辆类型表示该危险节点ID对应的车辆类型,即该危险节点ID对应的危险类型是针对该车辆类型的车辆,该危险路段对该车辆类型之外的其它车辆不构成危险;GPS导航系统在步骤13中判断当前选择的导航路径上是否存在危险路段时,可以进一步根据驾驶者当前驾驶的车辆类型以及导航路径上的危险路段对应的车辆类型,判断导航路径上是否存在危险路段; [0073] indicates the type of the vehicle type of the vehicle corresponding to the node ID risk, i.e. the risk of the node corresponding to the ID type is dangerous for the vehicle type of the vehicle, the vehicle other than the dangerous road type of vehicle does not constitute a hazard; the GPS navigation in step 13 the system determines whether there is a risk of the road currently selected navigation route, according to the driver of the vehicle can be further current drive type of vehicle and dangerous sections of the type corresponding to the navigation route, determines whether there is a dangerous road navigation route;

[0074] 告警距离表示当驾驶者距离该危险路段的距离达到该告警距离时,需要提示告m. [0074] indicates an alarm from the alarm when the driver reaches the distance from the dangerous road section, the need to prompt report m.

θ , θ,

[0075] 时间表示该危险路段上存在危险的时间范围。 [0075] dangerous time period represented by the presence of the dangerous road.

[0076] 可以看出,上述道路模型数据中将危险节点制作在道路LINK上,使得危险节点的位置更为精确,在引导时可以实现精确的引导。 [0076] As can be seen, in the data model of the road on the road made risk node LINK, so that the risk of the position of the node more precisely, when the guide can achieve precise guidance.

[0077] 本实施例还可以进一步针对不同的驾驶者提供更为人性化的导航功能。 [0077] This embodiment may further provide a more user-friendly navigation functions for different drivers. 以下进行说明。 Described below.

[0078] 不同驾驶者的驾驶技能、心理素质和体能会有所不同,同一驾驶者在不同时间的驾驶能力也会有所变化。 [0078] different driver's driving skills, psychological and physical fitness will be different, the same driver will change at different times of driving ability. 例如,驾驶者甲可能认为自己的驾驶能力完全可以适应急转弯这种路段,因此急转弯路段对驾驶者甲而言危险性很小;相反,驾驶者乙可能认为急转弯路段对自己是相当危险的;驾驶者甲可能认为在短途驾驶时存在障碍物的路段没有太大危险, 而在长途驾驶时危险性非常大。 For example, the driver A may think that their driving ability can adapt to this section of sharp turns, sharp turns and therefore the driver section A in terms of risk is very small; the contrary, the driver B may think that he is quite sharp turn for the dangerous road of; a driver may think that there is an obstacle in the short road driving is not much danger, and in the long-distance driving risk is very large. 因此,本实施例还可以提供了危险指数的设置功能,驾驶者在导航开始前可以针对自身特点自行设置各种危险路段的危险指数,危险指数越高代表危险性越大。 Accordingly, the present embodiment can also provide a set of risk index function, the driver can set a variety of dangerous road risk index for the characteristics of their own before the navigation starts, the higher the risk index represents a higher risk.

[0079] 仍然以图1所示的流程为例进行,本实施例在所述步骤11之前还可包括: [0079] In still flow shown in FIG. 1 as an example, in this embodiment, prior to said step 11 further comprising:

[0080] 步骤10,根据驾驶者预先输入的各种危险路段的危险指数,在所述道路数据模型 [0080] Step 10, the risk index according to a variety of dangerous road driver input in advance, in the data model of the road

9中预先设置各种危险路段的危险指数。 9 previously set in various dangerous risk index sections.

[0081] 在所述步骤11中,在计算得到所述至少一条路径后,本实施例进一步根据所述道路数据模型中预先设置的危险路段信息,确定各个路径上所包括的危险路段;根据预先设置的各种危险路段的危险指数,统计各条路径的危险指数;根据各条路径的危险指数,选择出危险指数最低的路径,并提示驾驶者是否选择最安全的导航路径进行引导:在接收到驾驶者的确认指示后,根据所述危险指数最低的路径进行引导;在接收到驾驶者的否决指示后,进入步骤12。 After [0081] In the step 11, is calculated in the at least one path, according to a further embodiment of the present dangerous road data of the road model information set in advance, the respective paths determining dangerous road included embodiment; based on pre- all kinds of dangerous sections of the set of risk index, the statistical risk index of each path; risk index based on each path, choose the path of least risk index, and indicates to the driver whether to choose the safest route navigation guide: receiving acknowledgment indication to the driver, guiding the route based on the lowest risk index; rejection after receiving an indication of the driver proceeds to step 12.

[0082] 这样,通过以上流程,本实施例可以针对驾驶者的驾驶能力,选择出对于该驾驶者来说危险性最低的导航路径,从而可以进一步提高驾驶安全性。 [0082] Thus, by the above process, the present embodiment may be directed to the driver's driving ability, to select the least hazardous for the navigation route for the driver, thus further improving driving safety.

[0083] 上述流程中,还可以在步骤11进一步判断计算得到的出发地到目的地的路径是否只有一条:若是,则选择该路径作为导航路径并进入步骤17 ;否则,进入步骤12 ; [0083] The process may also be a further step 11 determines whether the calculated departure point to the destination is only one path: if yes, select the route as the route navigation and proceeds to step 17; otherwise, proceeds to step 12;

[0084] 步骤17,根据当前选择的导航路径进行引导并结束流程,其中,在引导过程中,进一步根据所述道路数据模型中预先建立的危险路段的信息,判断出当前选择的导航路径上存在的危险路段,并在驾驶者到达危险路段前向驾驶者提示危险路段上相应的危险信息。 [0084] Step 17, the navigation route for guiding the currently selected and ends the process, wherein during the boot process, based on the information of the road data is further pre-established model of dangerous road sections, determines that there is a currently selected navigation path the dangerous road to reach prompt and appropriate hazard information on the dangerous road to the driver before the driver's dangerous sections.

[0085] 基于以上所述的道路导航方法,本实施例还相应地提供了一种道路导航装置,如图2所示,该道路导航装置包括路径计算单元、第一交互单元、判断单元、第二交互单元、第一导航单元和第二导航单元;其中, [0085] Based on the above road navigation method according to the present embodiment further provides a corresponding road navigation apparatus 2, the navigation device comprising a road path computation unit, a first interactive unit, determining unit, a first two interacting unit, a first navigation unit and a second navigation unit; wherein,

[0086] 所述路径计算单元,用于根据预先建立的道路数据模型,计算得到出发地到目的地的至少一条路径,并触发所述第一交互单元; [0086] The path calculation unit, based on the road data for a pre-established model, the departure point to the destination is calculated at least one path, and triggering the first interactive unit;

[0087] 所述第一交互单元,用于根据所述路径计算单元或第二交互单元的触发,向驾驶者提供所述至少一条路径的信息,并在接收驾驶者从所述至少一条路径中选择的导航路径后,触发所述判断单元; [0087] The first interaction means, and second interaction means for triggering calculation unit according to the path, providing at least one driver the information of the path, and the driver receives from the at least one path after selecting the navigation route, triggering the determination unit;

[0088] 所述判断单元,用于在接收到所述第一交互单元的触发后,根据所述道路数据模型中预先建立的危险路段的信息,判断当前选择的导航路径上是否存在危险路段:若是, 则向驾驶者提示相应的危险路段信息并触发所述第二交互单元;否则,触发所述第一导航单元;这里,所述危险路段是对驾驶者驾驶安全存在不良影响的路段,具体包括:急转弯路段、多弯道路段、陡坡路段和存在障碍物的路段; [0088] The determination unit is configured to trigger after receiving the first interactive unit, according to the information of the road model in the pre-established data dangerous road segment, the segment is determined whether there is a risk of the currently selected navigation route: if so, then prompts the driver to the appropriate information and trigger dangerous sections of the second interactive unit; otherwise, triggering the first navigation unit; here, the road is dangerous driving safety there is an adverse effect on the driver's section, specific including: sharp turns road, multi-curve section, steep sections and sections of the obstruction exists;

[0089] 所述第二交互单元,用于根据所述判断单元的触发,接收并解析驾驶者输入的指令:在所述指令指示重新选择导航路径时触发所述第一交互单元;否则,触发所述第二导航单元; [0089] The second interaction means for judging according to the trigger unit receiving and parsing instruction input by the driver: triggering the first interaction means when said instruction indicates reselection navigation path; otherwise, triggering the second navigation unit;

[0090] 所述第一导航单元,用于根据当前选择的导航路径进行引导; [0090] The first navigation unit for performing route guidance navigation currently selected;

[0091] 所述第二导航单元,用于根据当前选择的导航路径进行引导,并在驾驶者到达所述危险路段前向驾驶者提示所述危险路段上相应的危险信息。 [0091] the second navigation unit for performing route guidance navigation currently selected, and prompts the driver reaches the corresponding risk of the dangerous road information to a driver before the dangerous road.

[0092] 优选地,图2所示的道路导航装置还包括危险指数设置单元和第三导航单元;其中, [0092] Preferably, a road navigation device shown in FIG 2 further includes a risk index setting unit and a third navigation unit; wherein,

[0093] 所述危险指数设置单元,用于根据驾驶者预先输入的各种危险路段的危险指数, 在所述道路数据模型中预先设置各种危险路段的危险指数; [0093] The risk index setting unit, according to the risk index for various dangerous road driver input in advance, risk index is set in advance in the dangers of the road link data model;

[0094] 所述路径计算单元,还可以进一步用于在计算得到所述至少一条路径后,根据所述道路数据模型中预先设置的危险路段信息,确定各个路径上所包括的危险路段;根据预先设置的各种危险路段的危险指数,统计各条路径的危险指数;根据各条路径的危险指数, 选择出危险指数最低的路径,并提示驾驶者是否选择最安全的导航路径进行引导:在接收到驾驶者的确认指示后,触发所述第三导航单元;在接收到驾驶者的否决指示后,触发所述 [0094] The path calculation unit may be further configured to calculate the at least one path, the dangerous road information according to the data model of the road set in advance, the respective paths is determined dangerous sections included; based on pre- all kinds of dangerous sections of the set of risk index, the statistical risk index of each path; risk index based on each path, choose the path of least risk index, and indicates to the driver whether to choose the safest route navigation guide: receiving acknowledgment indication to the driver, triggers the third navigation unit; rejection after receiving an indication of the driver, the trigger

第一交互单元。 A first interaction means.

[0095] 所述第三导航单元,用于根据所述危险指数最低的路径进行引导。 [0095] The third navigation unit for performing route guidance based on the lowest of said risk index.

[0096] 优选地,上述道路导航装置,还可以包括一直接导航单元,所述路径计算单元包括一判断子单元;其中, [0096] Preferably, the above-described road navigation apparatus may further comprise a direct navigation unit, the path computation unit comprises a determining subunit; wherein,

[0097] 所述判断子单元,用于判断所述至少一条路径是否只有一条:若是,则选择该路径作为导航路径并触发所述直接导航单元;否则,触发所述第一交互单元; [0097] The determining subunit, configured to determine the at least one path is only one: if yes, select the path as a direct navigation route and trigger the navigation unit; otherwise, triggering the first interactive unit;

[0098] 所述直接导航单元,用于根据当前选择的导航路径进行引导,并在引导过程中,根据所述道路数据模型中预先建立的危险路段的信息,判断出当前选择的导航路径上存在的危险路段,并在驾驶者到达危险路段前向驾驶者提示危险路段上相应的危险信息。 [0098] The direct navigation means for guiding the currently selected navigation route, and the boot process, based on the information of the road model in the pre-established data dangerous sections, it is determined that the currently selected navigation path exists the dangerous road to reach prompt and appropriate hazard information on the dangerous road to the driver before the driver's dangerous sections.

[0099] 优选地,所述第二导航单元,还可以进一步用于在驾驶者与所述危险路段之间的距离达到预定的告警距离时,通过语音向驾驶者提示所述危险路段上相应的危险信息。 [0099] Preferably, the second navigation unit, may further be used in the distance between the driver and the dangerous road distance reaches a predetermined alarm, voice prompt to the driver of the dangerous sections corresponding hazard information.

[0100] 优选地,图2所示的道路导航装置,还可以包括: [0100] Preferably, as shown in FIG. 2 road navigation apparatus may further comprise:

[0101] 危险路段建立单元,用于根据预先采集的危险路段信息,在所述道路数据模型中与危险路段对应的数据结构中增加: [0101] dangerous road establishing means according to the dangerous road information collected beforehand, corresponding to the increased risk of the link data in the road data structure model:

[0102] 危险路段的危险节点ID ; [0102] risk of dangerous road node ID;

[0103] 危险节点连接的道路路段; [0103] dangerous road link connected to the node;

[0104] 该危险节点ID对应的危险类型; [0104] The risk of hazardous node type corresponding to the ID;

[0105] 该危险节点ID对应的车辆类型; [0105] The risk of the vehicle type corresponding to the node ID;

[0106] 该危险节点ID对应的告警距离; [0106] The danger warning distance corresponding to the node ID;

[0107] 危险路段上存在危险的时间范围。 Danger exists on time [0107] dangerous road.

[0108] 综上所述,本发明实施例提供的道路导航方法及装置,在路径规划阶段提前让驾驶者选择是否避开危险路段,在引导时提前告警相应的危险路段信息,从而提高了驾驶者的驾驶安全。 [0108] In summary, road navigation method and apparatus provided by the embodiment of the present invention, in the route planning stage allows the driver to select whether to advance to avoid dangerous, dangerous sections corresponding alarm information in advance at the guide, thereby improving the driving driver's safety.

[0109] 以上所述仅是本发明的实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。 [0109] The above are only embodiments of the present invention, it should be noted that those of ordinary skill in the art, in the present invention without departing from the principles of the premise, further improvements and modifications may be made, these improvements and modifications also it is considered the scope of the present invention.

Claims (8)

  1. 1. 一种道路导航方法,其特征在于,包括:-步骤A0,根据预先采集的危险路段信息,在道路数据模型中与危险路段对应的数据结构中增加:危险路段的危险节点ID ;该危险节点ID对应的危险类型;该危险节点ID对应的车辆类型;该危险节点ID对应的告警距离;危险路段上存在危险的时间范围;步骤A,根据预先建立的道路数据模型,计算得到出发地到目的地的至少一条路径;步骤B,向驾驶者提供所述至少一条路径的信息,并接收驾驶者从所述至少一条路径中选择的导航路径;步骤C,根据所述道路数据模型中预先建立的危险路段的信息,判断当前选择的导航路径上是否存在危险路段;在判断出当前选择的导航路径上存在危险路段时,则向驾驶者提示相应的危险路段信息,然后执行步骤D ;在判断出当前选择的导航路径上不存在危险路段时,则根据当前 1. A road navigation method, characterized by comprising: - a step A0, according to the dangerous road information collected in advance, and the risk increases corresponding to the link data in the road data structure model: the risk of dangerous road node ID; this risk node ID corresponding to the type of hazard; ID corresponding to the risk of node vehicle type; warning distance corresponding to the risk node ID; dangerous time present on the dangerous road; step a, according to the road data model established in advance, the calculated departure place to at least one path to the destination; procedure B, providing at least one of the path information to the driver, and the driver receives the navigation route selected from the at least one path; step C, and the data of the road model according to pre-established information danger points, it is determined whether there is a dangerous road on the navigation route is currently selected; when it is determined that the dangerous road exists on the navigation path of the current selection, prompting the corresponding dangerous road information to a driver, then step D; in Analyzing when the dangerous road does not exist on the currently selected navigation route, according to the current 择的导航路径进行引导并结束流程;其中,在判断当前选择的导航路径上是否存在危险路段时,进一步根据驾驶者当前驾驶的车辆类型以及导航路径上的危险路段对应的车辆类型,判断导航路径上是否存在危险路段;步骤D,接收并解析驾驶者输入的指令:在所述指令指示重新选择导航路径时返回步骤B;否则,根据当前选择的导航路径进行引导,并在驾驶者到达所述危险路段前向驾驶者提示所述危险路段上相应的危险信息;其中,在所述步骤A之前还包括:根据驾驶者预先输入的各种危险路段的危险指数,在所述道路数据模型中预先设置各种危险路段的危险指数;所述步骤A中,在计算得到所述至少一条路径后,进一步根据所述道路数据模型中预先设置的危险路段信息,确定各个路径上所包括的危险路段;根据预先设置的各种危险路段的危险指数,统 Optional navigation route for guiding and ending the process; wherein when the presence of hazardous road on the navigation route determined currently selected, a further vehicle according to the driver's current drive type of vehicle and dangerous sections of the navigation route corresponding to the type determined navigation route the presence or absence of the dangerous road; Procedure D, receives and parses the instruction input by the driver: when returns to the step indicated by the instruction B reselection navigation path; otherwise, the guide according to the currently selected navigation route, and to the driver in before dangerous sections corresponding prompt information on the dangerous road hazard to the driver; wherein prior to said step a further comprising: a risk index according to a variety of dangerous road driver input in advance, in advance of the road data model provided dangerous sections of various risk index; step a, calculated in said at least one path back, according to a further dangerous road information of the road model data set in advance, the respective paths is determined dangerous sections included; the risk index various dangerous road set in advance, the system 各条路径的危险指数;根据各条路径的危险指数,选择出危险指数最低的路径,并提示驾驶者是否选择最安全的导航路径进行引导:在接收到驾驶者的确认指示后,根据所述危险指数最低的路径进行引导;在接收到驾驶者的否决指示后,进入步骤B。 Risk index for the respective paths; risk index according to each path, the path selected lowest risk index, and prompts the driver whether to select the safest route navigation guides: after receiving the acknowledgment indication of the driver, according to the minimum risk index route guide; rejection after receiving an indication of the driver proceeds to step B.
  2. 2.如权利要求1所述的道路导航方法,其特征在于,所述步骤A中,进一步判断所述至少一条路径是否只有一条:若是,则选择该路径作为导航路径并进入步骤E ;否则,进入步骤C;-步骤E,根据当前选择的导航路径进行引导并结束流程,其中,在引导过程中,进一步根据所述道路数据模型中预先建立的危险路段的信息,判断出当前选择的导航路径上存在的危险路段,并在驾驶者到达危险路段前向驾驶者提示危险路段上相应的危险信息。 2. The road navigation method according to claim 1, wherein said step A, said at least one further judges whether only one path: if yes, select the route as the route navigation and proceeds to step E; otherwise, proceeds to step C; - a step E, according to the navigation route for guiding the currently selected and ends the process, wherein during the boot process, based on the information of the road data is further pre-established model of dangerous road sections, it is determined that the currently selected navigation path dangerous sections on the existence and reach the appropriate prompt information on the dangerous road hazard to the driver before the driver's dangerous sections.
  3. 3.如权利要求1所述的道路导航方法,其特征在于,所述在驾驶者到达所述危险路段前向驾驶者提示所述危险路段上相应的危险信息是:在驾驶者与所述危险路段之间的距离达到预定的告警距离时,通过语音向驾驶者提示所述危险路段上相应的危险信息。 3. The road navigation method according to claim 1, wherein said prompt when the driver reaches the driver before the corresponding sections of the risk of the risk of dangerous road information is: the driver and dangerous the distance between the segment reaches a predetermined warning distance corresponding prompt information on the dangerous road hazard to the driver by voice.
  4. 4.如权利要求3所述的道路导航方法,其特征在于,所述危险路段是存在有预定危险因素的路段,所述危险路段具体包括:急转弯路段、多弯道路段、陡坡路段和存在障碍物的路段。 4. The road navigation method according to claim 3, wherein the dangerous road link has a predetermined presence of risk factors, the risk of sections comprises: a sharp turn sections, multi-curve section, and the presence of steep slope segment road obstacles.
  5. 5. 一种道路导航装置,其特征在于,包括危险路段建立单元、路径计算单元、第一交互单元、判断单元、第二交互单元、第一导航单元和第二导航单元;其中,所述危险路段建立单元,用于根据预先采集的危险路段信息,在所述道路数据模型中与危险路段对应的数据结构中增加:危险路段的危险节点ID ;危险节点连接的道路路段; 该危险节点ID对应的危险类型;该危险节点ID对应的车辆类型;该危险节点ID对应的告警距离;危险路段上存在危险的时间范围;所述路径计算单元,用于根据预先建立的道路数据模型,计算得到出发地到目的地的至少一条路径,并触发所述第一交互单元;所述第一交互单元,用于根据所述路径计算单元或第二交互单元的触发,向驾驶者提供所述至少一条路径的信息,并在接收驾驶者从所述至少一条路径中选择的导航路径后 A road navigation apparatus characterized by comprising dangerous road establishing means, PCE, a first interactive unit, a determination unit, a second interaction means, a first navigation unit and a second navigation unit; wherein the danger link establishing means according to the dangerous road information collected beforehand, corresponding to the increased risk of the link data in the road data structure model: the risk of dangerous road node ID; dangerous road link connected to the node; node ID corresponding to the dangerous risk type; node ID corresponding to the risk of the type of vehicle; hazard alarms from the node corresponding to the ID; dangerous time present on the dangerous road; the path calculation unit, based on the road data for a pre-established model, calculated starting the at least one path to the destination, and triggering the first interactive unit; said first interaction means, and second interaction means for triggering calculation unit according to the path, providing at least one path to the driver information, and the driver receives the navigation route from the selected at least one path after , 触发所述判断单元;所述判断单元,用于在接收到所述第一交互单元的触发后,根据所述道路数据模型中预先建立的危险路段的信息,判断当前选择的导航路径上是否存在危险路段:若是,则向驾驶者提示相应的危险路段信息并触发所述第二交互单元;否则,触发所述第一导航单元; 其中,在判断当前选择的导航路径上是否存在危险路段时,进一步根据驾驶者当前驾驶的车辆类型以及导航路径上的危险路段对应的车辆类型,判断导航路径上是否存在危险路段;所述第二交互单元,用于根据所述判断单元的触发,接收并解析驾驶者输入的指令: 在所述指令指示重新选择导航路径时触发所述第一交互单元;否则,触发所述第二导航单元;所述第一导航单元,用于根据当前选择的导航路径进行引导; 所述第二导航单元,用于根据当前选择的导航路径 Trigger the determining unit; determining whether the means for receiving the trigger after the first interactive unit, according to the information of the road model in the pre-established data dangerous sections determines the currently selected navigation route there is a risk sections: if yes, dangerous sections corresponding prompt information to a driver and to trigger the second interaction means; wherein, if there is a risk on the road currently selected navigation route is determined; otherwise, triggering the first navigation unit further according to the current driver of the vehicle type, and vehicle driving on dangerous sections corresponding to the type of navigation route, determines whether there is a dangerous road navigation route; the second interaction means for triggering according to the judgment unit receives and resolution instructions input by the driver: triggering the first interaction means when said instruction indicates reselection navigation path; otherwise, triggering the second navigation unit; the first navigation unit, according to the currently selected navigation route guide; the second navigation unit for a navigation route in accordance with the currently selected 进行引导,并在驾驶者到达所述危险路段前向驾驶者提示所述危险路段上相应的危险信息;所述道路导航装置还包括危险指数设置单元和第三导航单元;其中, 所述危险指数设置单元,用于根据驾驶者预先输入的各种危险路段的危险指数,在所述道路数据模型中预先设置各种危险路段的危险指数;所述路径计算单元,进一步用于在计算得到所述至少一条路径后,根据所述道路数据模型中预先设置的危险路段信息,确定各个路径上所包括的危险路段;根据预先设置的各种危险路段的危险指数,统计各条路径的危险指数;根据各条路径的危险指数,选择出危险指数最低的路径,并提示驾驶者是否选择最安全的导航路径进行引导:在接收到驾驶者的确认指示后,触发所述第三导航单元;在接收到驾驶者的否决指示后,触发所述第一交互单兀。 Guided, and prompts the driver reaches the corresponding risk of the dangerous road information to a driver before the dangerous road; a road navigation device further comprises a risk index setting unit and a third navigation unit; wherein said risk index setting means according to the risk index for various dangerous road driver input in advance, in the data model of the road set in advance dangerous sections of various risk index; the path calculation unit is further configured to calculate the after at least one path, the dangerous road information according to the data model of the road set in advance, the respective paths is determined dangerous sections included; risk index according to a variety of dangerous road set in advance, the statistical risk index of each path; according risk index for the respective paths, the selected path of least risk index, and indicates to the driver whether to select the safest navigation route guide: after receiving an acknowledgment indication of the driver, triggers a third navigation unit; receiving after the rejection of the driver indicated, triggering the first single interaction Wu. 所述第三导航单元,用于根据所述危险指数最低的路径进行引导。 A third navigation unit for performing route guidance based on the lowest of said risk index.
  6. 6.如权利要求5所述的道路导航装置,其特征在于,还包括一直接导航单元,所述路径计算单元包括一判断子单元;所述判断子单元,用于判断所述至少一条路径是否只有一条:若是,则选择该路径作为导航路径并触发所述直接导航单元;否则,触发所述第一交互单元;所述直接导航单元,用于根据当前选择的导航路径进行引导,并在引导过程中,根据所述道路数据模型中预先建立的危险路段的信息,判断出当前选择的导航路径上存在的危险路段,并在驾驶者到达危险路段前向驾驶者提示危险路段上相应的危险信息。 6. The road navigation device according to claim 5, characterized in that, further comprising a direct navigation unit, the path computation unit comprises a determining subunit; determines the path of the at least one sub-unit determination, whether only one: if yes, select the path as a direct navigation route and trigger the navigation unit; otherwise, triggering the first interactive unit; said direct navigation means for guiding the currently selected navigation route, and the guide process, according to the information of the road model in the pre-established data dangerous sections, it is determined that the presence of dangerous road currently selected navigation route, and prompts the driver reaches a respective risk dangerous road information to a driver before dangerous sections .
  7. 7.如权利要求5至6任一项所述的道路导航装置,其特征在于,所述第二导航单元,进一步用于在驾驶者与所述危险路段之间的距离达到预定的告警距离时,通过语音向驾驶者提示所述危险路段上相应的危险信息。 7. The road navigation device according to any one of claims 5-6, wherein the second navigation unit is further configured to a distance between the driver and the dangerous road distance reaches a predetermined alarm , suggesting the corresponding risk of the dangerous road information to the driver by voice.
  8. 8.如权利要求7所述的道路导航装置,其特征在于,所述危险路段是存在有预定危险因素的路段,所述危险路段具体包括:急转弯路段、多弯道路段、陡坡路段和存在障碍物的路段。 8. The road navigation apparatus according to claim 7, wherein the dangerous road link has a predetermined presence of risk factors, the risk of sections comprises: a sharp turn sections, multi-curve section, and the presence of steep slope segment road obstacles.
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