CN110906948A - Navigation route planning method and device - Google Patents
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- CN110906948A CN110906948A CN201911355909.8A CN201911355909A CN110906948A CN 110906948 A CN110906948 A CN 110906948A CN 201911355909 A CN201911355909 A CN 201911355909A CN 110906948 A CN110906948 A CN 110906948A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 91
- 238000009825 accumulation Methods 0.000 claims abstract description 66
- 238000001556 precipitation Methods 0.000 claims abstract description 46
- 238000013459 approach Methods 0.000 claims description 13
- 238000012790 confirmation Methods 0.000 claims description 4
- 239000003673 groundwater Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3446—Details of route searching algorithms, e.g. Dijkstra, A*, arc-flags, using precalculated routes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3453—Special cost functions, i.e. other than distance or default speed limit of road segments
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3453—Special cost functions, i.e. other than distance or default speed limit of road segments
- G01C21/3492—Special cost functions, i.e. other than distance or default speed limit of road segments employing speed data or traffic data, e.g. real-time or historical
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Abstract
The invention provides a navigation route planning method and a device, wherein the navigation route planning method comprises the following steps: acquiring road condition information of a passing point and precipitation of the passing point in a navigation route; if the water accumulation prone area exists in the route point and the precipitation exceeds the threshold value, the navigation route is re-planned to avoid the water accumulation prone area. The navigation route planning method and the navigation route planning device provided by the invention can select a proper route for the user according to the weather information and the height information of the driving road section, so that the phenomenon that the vehicle is flooded when the user drives the vehicle to enter the road section with water accumulation easily is avoided, the method and the device are more humanized, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of vehicle navigation, in particular to a navigation route planning method and device.
Background
With the development of the automobile industry, automobiles have become a main transportation tool for people. Meanwhile, automobiles are becoming popular consumer products, and automobile consumer groups are expanding. The consumer has the automobile and the requirement for the automobile is higher and higher, and automobile navigation is an important aspect for improving the automobile driving experience and the convenience of trip planning. Furthermore, drivers often need navigation assistance in transit due to unfamiliarity with roads, bad weather, etc. in order to reach a destination as quickly as possible under guidance.
The navigation system for the vehicle-mounted device in the prior art often assists a user in route planning, the user inputs a destination position at a vehicle-mounted terminal before or on the way to the destination, and the vehicle-mounted navigation system plans a route according to the current position of a vehicle and the destination and then starts navigation. However, in the prior art, a proper route cannot be selected for a user according to weather and height information of a road section, and the user may sink into a low-lying road section to cause a vehicle to be submerged.
Therefore, a method and an apparatus for planning a navigation route are needed to solve the above problems.
Disclosure of Invention
The invention provides a navigation route planning method and a navigation route planning device, and solves the problem that in the prior art, a proper route cannot be selected for a user according to weather and road section height information, so that the user may drive a vehicle to enter a road section prone to water accumulation, and the vehicle is flooded.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a navigation routing method, comprising: acquiring road condition information of a passing point and precipitation of the passing point in a navigation route; if the water accumulation prone area exists in the route point and the precipitation exceeds the threshold value, the navigation route is re-planned to avoid the water accumulation prone area.
In a preferred embodiment of the present invention, the step of obtaining the road condition information of the route point and the precipitation amount of the route point in the navigation route includes: acquiring height information in road condition information of a road; when the altitude of the approach field is lower than a height threshold value, a low-lying road section on the approach field is acquired.
In a preferred embodiment of the present invention, if the route point has the water accumulation prone area and the precipitation amount exceeds the threshold, the step of replanning the navigation route to avoid the water accumulation prone area includes: acquiring traffic jam conditions in road condition information of road points under the historical condition of equal precipitation; when the number of times of congestion at the low-lying road section exceeds a first threshold value, it is determined that the region is a region prone to water accumulation.
In a preferred embodiment of the present invention, if the route point has the water accumulation prone area and the precipitation amount exceeds the threshold, the step of replanning the navigation route to avoid the water accumulation prone area includes: acquiring the danger occurrence times of the vehicle wading danger of a low-lying road section under the historical condition of the same rainfall occurrence; and if the danger times exceed a second threshold value, determining that the low-lying road section is an area easy to accumulate water.
In a preferred embodiment of the present invention, if the route point has the water accumulation prone area and the precipitation amount exceeds the threshold, the step of replanning the navigation route to avoid the water accumulation prone area includes: acquiring historical risk records of vehicles in the approach area under the same precipitation; acquiring the risk taking times of the water risk in the approach area according to the historical risk taking records; and if the risk taking times of the road-to-ground water risks exceed a third threshold value, confirming that the road-to-ground water accumulation areas exist.
In a preferred embodiment of the present invention, the step of obtaining the road condition information of the route points and the precipitation of the route points in the navigation route further includes: acquiring the water level depth of a low-lying road section; and when the water level depth exceeds a first preset value, the navigation route is re-planned to avoid the low-lying road section.
In a preferred embodiment of the present invention, the first preset value is a safe wading depth corresponding to a current vehicle model.
In a preferred embodiment of the present invention, if the route point has the water accumulation prone area and the precipitation amount exceeds the threshold, the step of replanning the navigation route to avoid the water accumulation prone area includes: and marking and displaying the water accumulation prone area on the navigation map so as to replan the navigation route according to the replan confirmation instruction of the user and avoid the water accumulation prone area when replan the navigation route.
A navigation routing apparatus comprising: a memory, a processor; the memory is used for storing an application program; the processor is used for applying the application program to execute the following steps: acquiring road condition information of a passing point and precipitation of the passing point in a navigation route; if the water accumulation prone area exists in the route point and the precipitation exceeds the threshold value, the navigation route is re-planned to avoid the water accumulation prone area.
The technical effect achieved by adopting the technical scheme is as follows: when a user plans a navigation route through a navigation terminal on a vehicle, current weather information is obtained, and when the weather information is precipitation, the precipitation in the area in front of the planned route can be obtained again. Acquiring road condition information of an area in front of a planned route, and judging whether a low-lying road section exists in a road section in front; meanwhile, judging whether congestion exists in a low-lying road section under the historical condition of equal precipitation; and judging the data of the vehicle wading risk in the history of the low-lying road section according to the history risk record. According to the data of the aspects, the low-lying road section is judged to belong to the water accumulation prone road section, and when the precipitation reaches a certain threshold value, the user is automatically switched to the route which is not prone to water accumulation. The situation that the vehicle is flooded due to the fact that the user possibly drives the vehicle to enter the water-prone road section is avoided.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are specifically described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a flow chart of a navigation routing method according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a navigation route planning device according to a second embodiment of the present invention.
Detailed Description
To further illustrate the technical measures and effects taken by the present invention to achieve the intended objects, embodiments of the present invention will be described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. While the present invention has been described in connection with the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and specific embodiments thereof.
Since the road, there is a map of the way that people are pointing. However, the map used as a guiding guide for people is often the root cause of tension in people's relationship. Because printed maps often cannot keep up with street changes and are difficult to read, it is difficult for a driving person to provide accurate instructions because the driving person is responsible for the person sitting next to the vehicle. Therefore, the satellite navigation system which can accurately and timely navigate and position the automobile by using the satellite signals at high altitude becomes an invaluable treasure.
In recent years, the development of car navigation systems has been very rapid. At present, people can select a navigation system as an optional configuration when purchasing a new car, can install the equipment on an existing car, and can even configure a mobile satellite navigation system, and drive the car to put the car on the car or carry the car to travel in the field and climb mountains. However, in the prior art, vehicle navigation helps a user to perform route planning, the user inputs a destination position at a vehicle-mounted terminal before or on the way to the destination, a vehicle-mounted navigation system plans a route according to the current position and the destination of a vehicle, then starts navigation, and only a traffic jam area and a construction area are marked on the navigation route. However, in the case of large rainfall in rainy days, the driver does not know that the areas on the navigation route are excessively accumulated with water to form water accumulation areas, and the driver cannot avoid the water accumulation areas formed by excessive rainfall. If the easy ponding area can be displayed on the navigation map, or the ponding area is judged according to the historical data and then the navigation route is planned, the ponding area is automatically avoided, the time of a driver can be saved, the vehicle is prevented from being flooded due to the fact that the vehicle drives into the ponding area, and even the life is saved!
Referring to fig. 1, fig. 1 is a flowchart illustrating a navigation route planning method according to a first embodiment of the present invention.
As shown in fig. 1, the navigation route planning method according to the first embodiment of the present invention includes the following steps:
step S11: and acquiring road condition information of the passing points and precipitation of the passing points in the navigation route.
Specifically, the traffic information includes: construction information, road information, and altitude information. The amount of rainfall on the way may be greater than or equal to zero.
In one embodiment, when the user selects a destination for navigation, the navigation system may determine weather information on a driving route, and when rainfall occurs, obtain the rainfall of the area, where the rainfall may be obtained from a cloud server of a weather department in which the area is located.
In one embodiment, step S11 is obtained: acquiring road condition information of a route point and precipitation of the route point in a navigation route, comprising the following steps: acquiring height information in road condition information of a road; when the altitude of the approach field is lower than a height threshold value, a low-lying road section on the approach field is acquired.
Specifically, altitude information of each road section on the navigation route and average altitude information of a corresponding area of each road section are obtained, the altitude of each road section is compared with the average altitude, and if the altitude of the road section is lower than the average altitude, the road section is determined to be a low-lying road section. Wherein the altitude threshold is the average altitude.
Specifically, if the altitude of a certain link is lower than the altitude of the surrounding area and the difference in altitude exceeds the height threshold, the link is determined to be a low-lying link.
Step S12: if the water accumulation prone area exists in the route point and the precipitation exceeds the threshold value, the navigation route is re-planned to avoid the water accumulation prone area.
Specifically, after the road section on the route, which is likely to cause water accumulation, is judged. If rainfall occurs, the rainfall amount of the area is obtained from a cloud server of a weather department where the area is located, whether the rainfall amount possibly affects passing of passing places is judged, if excessive ponding vehicles cannot pass through, when the passing is affected, the user is switched to other lines which do not affect passing so as to avoid ponding areas or areas prone to ponding.
In one embodiment, step S12: if the water accumulation prone area exists in the route point and the precipitation exceeds the threshold value, replanning the navigation route to avoid the water accumulation prone area, and the method comprises the following steps: acquiring traffic jam conditions in road condition information of road points under the historical condition of equal precipitation; when the number of times of congestion at the low-lying road section exceeds a first threshold value, it is determined that the region is a region prone to water accumulation.
Particularly, under the rainfall weather condition, the low-lying road section is often congested, and there is a great possibility that the low-lying road section is excessively accumulated with water to form a water accumulation area so that the vehicle runs slowly or the vehicle cannot pass through the water accumulation area.
In one embodiment, step S12: if the water accumulation prone area exists in the route point and the precipitation exceeds the threshold value, replanning the navigation route to avoid the water accumulation prone area, and the method comprises the following steps: acquiring the danger occurrence times of the vehicle wading danger of a low-lying road section under the historical condition of the same rainfall occurrence; and if the danger times exceed a second threshold value, determining that the low-lying road section is an area easy to accumulate water.
Specifically, after the current rainfall information is obtained, the occurrence frequency of vehicle wading risks of a certain low-lying road section on a navigation route under the historical condition of the same rainfall is obtained, because each wading risk represents that a vehicle wades into the water, the vehicle wading indicates that the low-lying road section is a water accumulation area, and the occurrence frequency exceeds a second threshold value indicates that the low-lying road section is easy to accumulate water under the rainfall weather condition.
In one embodiment, step S12: if the water accumulation prone area exists in the route point and the precipitation exceeds the threshold value, replanning the navigation route to avoid the water accumulation prone area, and the method comprises the following steps: acquiring historical risk records of vehicles in the approach area under the same precipitation; acquiring the risk taking times of the water risk in the approach area according to the historical risk taking records; and if the risk taking times of the road-to-ground water risks exceed a third threshold value, confirming that the road-to-ground water accumulation areas exist.
Specifically, after the existence of the easy water accumulation area in the way is confirmed, the danger emergence position information of the water danger is obtained, and if the water danger emergence occurs for multiple times at the same position, the position is confirmed to be the easy water accumulation area.
In one embodiment, step S12: if the water accumulation prone area exists in the route point and the precipitation exceeds the threshold value, replanning the navigation route to avoid the water accumulation prone area, and the method comprises the following steps: and marking and displaying the water accumulation prone area on the navigation map so as to replan the navigation route according to the replan confirmation instruction of the user and avoid the water accumulation prone area when replan the navigation route.
Specifically, after the position of the easy water accumulation area is confirmed, marking is carried out on the navigation map, then a navigation route re-planning request is displayed on the display interface, after a re-planning confirmation instruction of a user is received, the navigation route is re-planned avoiding the easy water accumulation area marked on the navigation map, then the re-planned navigation route is detected, and whether the re-planned navigation route has the easy water accumulation area or not is judged.
In another embodiment, step S11: acquiring road condition information of a route point and precipitation of the route point in a navigation route, and then: acquiring the water level depth of a low-lying road section; and when the water level depth exceeds a first preset value, the navigation route is re-planned to avoid the low-lying road section.
The first preset value is a safe wading depth corresponding to the current vehicle model.
Specifically, the low-lying section is a section with four sides high and a middle low, and water accumulation is relatively likely to occur when the drainage speed is low. And obtaining the stable water level depth of the low-lying road section or obtaining the highest water level depth of the low-lying road section under the same historical condition, then comparing the stable water level depth or the highest water level depth with the safe wading depth of the current vehicle type, and re-planning the navigation route by the single-line system when the stable water level depth or the highest water level depth is greater than or equal to the safe wading depth.
According to the one-way route planning method provided by the invention, when a user carries out navigation route planning through the navigation terminal on the vehicle, the current weather information is obtained, and when the weather information is precipitation, the precipitation in the area in front of the planned route is obtained again. Acquiring road condition information of an area in front of a planned route, and judging whether a low-lying road section exists in a road section in front; meanwhile, judging whether congestion exists in a low-lying road section under the historical condition of equal precipitation; and judging the data of the vehicle wading risk in the history of the low-lying road section according to the history risk record. And judging that the low-lying road section belongs to a road section prone to water accumulation according to the data of the aspects, and re-planning the route when the precipitation reaches a certain threshold value to switch the route to the route not prone to water accumulation for the user.
Fig. 2 is a schematic structural diagram of a navigation route planning device according to a second embodiment of the present invention.
As shown in fig. 2, a navigation route planning apparatus according to a second embodiment of the present invention includes: memory, processor.
Specifically, the navigation route planning device comprises: a memory, a processor; the memory is used for storing an application program; the processor is used for applying the application program to execute the following steps: acquiring road condition information of a passing point and precipitation of the passing point in a navigation route; if the water accumulation prone area exists in the route point and the precipitation exceeds the threshold value, the navigation route is re-planned to avoid the water accumulation prone area.
It should be understood that, although the steps in the flowchart of fig. 1 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in fig. 1 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, in different orders, and may be performed alternately or at least partially with respect to other steps or other steps.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, the above embodiments are exemplary, and are not to be construed as limiting the present invention, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical idea of the present invention, and these simple modifications all belong to the protection scope of the present invention.
Claims (9)
1. A navigation route planning method is characterized by comprising the following steps:
acquiring road condition information of a passing point in a navigation route and precipitation of the passing point;
and if the water accumulation prone area exists in the route point and the precipitation exceeds a threshold value, replanning the navigation route to avoid the water accumulation prone area.
2. The navigation route planning method according to claim 1, wherein the step of acquiring the road condition information of the route point and the precipitation amount of the route point in the navigation route comprises:
acquiring height information in the road condition information of the approach place;
when the altitude of the route ground is lower than a height threshold value, a low-lying road section on the route ground is obtained.
3. The navigation route planning method according to claim 2, wherein if the route point has a water accumulation prone area and the precipitation amount exceeds a threshold value, the step of replanning the navigation route to avoid the water accumulation prone area comprises:
acquiring traffic jam conditions in the road condition information of the road points under the historical condition of equal precipitation;
and when the number of times of congestion in the low-lying road section exceeds a first threshold value, determining that the low-lying road section is a region easy to accumulate water.
4. The navigation route planning method according to claim 2, wherein if the route point has a water accumulation prone area and the precipitation amount exceeds a threshold value, the step of replanning the navigation route to avoid the water accumulation prone area comprises:
acquiring the danger occurrence times of the vehicle wading danger of the low-lying road section under the historical condition of the same rainfall occurrence;
and if the danger times exceed a second threshold value, confirming that the low-lying road section is an area easy to accumulate water.
5. The navigation route planning method according to claim 1, wherein if the route point has a water accumulation prone area and the precipitation amount exceeds a threshold value, the step of replanning the navigation route to avoid the water accumulation prone area comprises:
acquiring historical risk records of vehicles in the approach place under the same precipitation;
acquiring the risk taking times of the water risk of the approach place according to the historical risk taking records;
and if the risk taking times of the water risk in the approach place exceed a third threshold value, confirming that the approach place has the area easy to accumulate water.
6. The navigation route planning method according to claim 2, wherein the step of obtaining the road condition information of the route point and the precipitation amount of the route point in the navigation route further comprises:
acquiring the water level depth of the low-lying road section;
and when the water level depth exceeds a first preset value, re-planning a navigation route to avoid the low-lying road section.
7. The navigation routing method of claim 6, wherein the first predetermined value is a safe wading depth corresponding to a current vehicle model.
8. The navigation route planning method according to claim 1, wherein if the route point has a water accumulation prone area and the precipitation amount exceeds a threshold value, the step of replanning the navigation route to avoid the water accumulation prone area comprises:
marking and displaying the water accumulation prone area on the navigation map, replanning the navigation route according to a replanning confirmation instruction of the user, and avoiding the water accumulation prone area when replanning the navigation route.
9. A navigation routing device, comprising: a memory, a processor;
the memory is used for storing an application program;
the processor is used for applying the application program to execute the following steps:
acquiring road condition information of a passing point in a navigation route and precipitation of the passing point;
and if the water accumulation prone area exists in the route point and the precipitation exceeds a threshold value, replanning the navigation route to avoid the water accumulation prone area.
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| CN114413923A (en) * | 2022-01-25 | 2022-04-29 | 中国第一汽车股份有限公司 | Driving route recommendation method, device, storage medium and system |
| CN114413923B (en) * | 2022-01-25 | 2024-03-15 | 中国第一汽车股份有限公司 | Driving route recommendation method, device, storage medium and system |
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Address after: Room 208, building 4, 1411 Yecheng Road, Jiading District, Shanghai, 201821 Applicant after: Botai vehicle networking technology (Shanghai) Co.,Ltd. Address before: Room 208, building 4, 1411 Yecheng Road, Jiading District, Shanghai, 201821 Applicant before: SHANGHAI PATEO ELECTRONIC EQUIPMENT MANUFACTURING Co.,Ltd. |
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