CN111578954A - Navigation prompting method, device, equipment and readable storage medium - Google Patents
Navigation prompting method, device, equipment and readable storage medium Download PDFInfo
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- CN111578954A CN111578954A CN202010475889.4A CN202010475889A CN111578954A CN 111578954 A CN111578954 A CN 111578954A CN 202010475889 A CN202010475889 A CN 202010475889A CN 111578954 A CN111578954 A CN 111578954A
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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
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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
- G01C21/28—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network with correlation of data from several navigational instruments
- G01C21/30—Map- or contour-matching
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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
- G01C21/3407—Route searching; Route guidance specially adapted for specific applications
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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
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3697—Output of additional, non-guidance related information, e.g. low fuel level
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Abstract
The embodiment of the application discloses a navigation prompting method, a navigation prompting device, navigation prompting equipment and a readable storage medium, and relates to the technical field of automatic driving. The specific implementation scheme is as follows: after the candidate navigation route is determined, the server predicts whether the terminal equipment is in the limited positioning capacity condition or not by utilizing the pre-stored positioning capacity thermal map when the terminal equipment passes through the candidate navigation route, and sends prompt information to the terminal equipment to prompt the user, so that the user can search a new navigation route again or stop driving, and the like, the situation that the terminal equipment cannot reach the destination depending on wrong navigation is avoided, the user is prevented from getting lost, and the automatic driving safety is improved.
Description
Technical Field
The embodiment of the application relates to the technical field of automatic driving, in particular to a navigation prompting method, a navigation prompting device, navigation prompting equipment and a readable storage medium.
Background
With the rapid development of the technology, the use of vehicles is more and more common, and the vehicles become one of the important vehicles in daily life. At the same time, more and more vehicles can navigate to allow users to quickly reach a destination.
In general, in the process of using a vehicle to ride instead of walk, a user inputs a starting point and an end point through a navigation system, the navigation system generates a plurality of navigation routes according to the starting point and the end point, and recommends the optimal routes to the user for the user to select. And then, in the navigation process, the vehicle reports the position information to the navigation system in real time, and the positioning system reminds the user how to advance in real time according to the real-time position of the vehicle and the navigation route selected by the user. And if the yaw occurs, the navigation route is planned again.
During the running process of the vehicle, the condition of severe weather or signal obstruction is often encountered, and the condition is called weak network state. At the moment, the vehicle cannot be accurately positioned, so that the navigation system cannot correctly navigate, and further safety accidents occur frequently.
Disclosure of Invention
The embodiment of the application provides a navigation prompting method, a navigation prompting device, equipment and a readable storage medium, which can improve the safety of automatic driving by predicting whether the situation that the positioning capacity is limited can occur when a terminal device passes through a candidate navigation route in advance and prompting the terminal device.
In a first aspect, an embodiment of the present application provides a navigation prompt method, including: determining a candidate navigation route, predicting whether a situation that the positioning capacity is limited occurs when a terminal device passes through the candidate navigation route by using a positioning capacity thermal map, wherein the positioning capacity thermal map is used for representing the positioning capacity of different areas of a preset geographic area, the candidate navigation route is located in the preset geographic area, and if the situation that the positioning capacity is limited occurs when the terminal device moves on the candidate navigation route, sending prompt information to the terminal device, wherein the prompt information is used for prompting that the positioning capacity is limited when the terminal device moves on the candidate navigation route. By adopting the scheme, the safety of automatic driving is improved by predicting whether the situation that the positioning capacity is limited occurs or not when the terminal equipment passes through the candidate navigation route in advance and prompting the terminal equipment.
In a second aspect, an embodiment of the present application provides a navigation prompt apparatus, including:
the terminal equipment comprises a processing unit, a processing unit and a processing unit, wherein the processing unit is used for determining a candidate navigation route and predicting whether a situation that the positioning capacity is limited occurs when the terminal equipment passes through the candidate navigation route by using a positioning capacity thermodynamic map, the positioning capacity thermodynamic map is used for representing the positioning capacity of different areas of a preset geographic area, and the candidate navigation route is located in the preset geographic area;
and the sending unit is used for sending prompt information to the terminal equipment if the processing unit determines that the situation that the positioning capacity is limited occurs when the terminal equipment moves on the candidate navigation route, wherein the prompt information is used for prompting that the positioning capacity is limited when the terminal equipment moves on the candidate navigation route.
In a third aspect, an embodiment of the present application provides an electronic device, including:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the first aspect or any possible implementation of the method of the first aspect.
In a fourth aspect, embodiments of the present application provide a computer program product containing instructions, which when run on an electronic device, cause the electronic device computer to perform the method of the first aspect or the various possible implementations of the first aspect.
In a fifth aspect, embodiments of the present application provide a non-transitory computer-readable storage medium storing computer instructions for causing an electronic device to perform the method of the first aspect or the various possible implementations of the first aspect.
In a sixth aspect, an embodiment of the present application provides a navigation prompting method, including: determining a candidate navigation route, determining whether a situation that the positioning capacity is limited occurs when a vehicle runs on the candidate navigation route, and if the situation that the positioning capacity is limited occurs when the terminal device moves on the candidate navigation route, sending prompt information to the terminal device, wherein the prompt information is used for prompting that the positioning capacity is limited when the terminal device moves on the candidate navigation route.
One embodiment in the above application has the following advantages or benefits: after the candidate navigation route is determined, the server predicts whether the terminal equipment is in the limited positioning capacity condition or not by utilizing the pre-stored positioning capacity thermal map when the terminal equipment passes through the candidate navigation route, and sends prompt information to the terminal equipment to prompt the user, so that the user can search a new navigation route again or stop driving, and the like, the situation that the terminal equipment cannot reach the destination depending on wrong navigation is avoided, the user is prevented from getting lost, and the automatic driving safety is improved.
Other effects of the above-described alternative will be described below with reference to specific embodiments.
Drawings
The drawings are included to provide a better understanding of the present solution and are not intended to limit the present application. Wherein:
fig. 1 is a schematic diagram of a network architecture to which the prompting method provided in the embodiment of the present application is applied;
FIG. 2 is a flowchart of a navigation prompt method provided in an embodiment of the present application;
fig. 3 is a schematic diagram of a thermodynamic map of location capability in a navigation prompting method provided in an embodiment of the present application;
FIG. 4 is a process diagram of the generation and use of a position location capability thermodynamic map provided by an embodiment of the present application;
fig. 5 is a schematic structural diagram of a navigation prompt apparatus according to an embodiment of the present disclosure;
FIG. 6 is a block diagram of an electronic device for implementing a navigation prompt method of an embodiment of the present disclosure.
Detailed Description
The following description of the exemplary embodiments of the present application, taken in conjunction with the accompanying drawings, includes various details of the embodiments of the application for the understanding of the same, which are to be considered exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
With the rapid development of the technology, more and more users navigate through navigation Applications (APPs) on the terminal devices. In the navigation process, after the server at the cloud end determines the navigation route, the user is navigated according to the position information reported by the terminal equipment in real time. The position information reported by the terminal device in real time may be obtained by performing Satellite Positioning on the terminal device by using a Global Positioning System (GPS) or a Global Navigation Satellite System (GNSS) base station, or by performing network Positioning on the terminal device by using a ground Positioning System.
However, the positioning process of the terminal device is easily affected by severe weather, which results in that the terminal device cannot be positioned or the positioned location information is inaccurate, which is called that the terminal device enters a weak network state or the positioning capability of the terminal device is limited.
Under normal conditions, when the positioning capability of the terminal equipment is limited, the cloud server continues to navigate the terminal equipment according to wrong position information, so that the terminal equipment cannot reach a correct destination, a journey is delayed, and even a path is lost, so that potential safety hazards are caused; or when the server at the cloud end finds that the positioning capability of the terminal equipment is limited, the server displays 'GPS signal is weak' on the terminal equipment, and positioning and navigation information is not displayed any more. At this time, the user is informed of the inability to locate in the middle of the journey, requiring the user to seek other clues to find a route to the destination. If the user cannot find the path to the destination immediately, the journey needs to be interrupted, and even potential safety hazards are caused.
In view of this, embodiments of the present application provide a navigation prompting method, which predicts in advance whether a situation where a positioning capability is limited occurs when a terminal device moves on a candidate navigation route and prompts the terminal device, so as to avoid that the terminal device cannot reach a destination depending on a wrong navigation, avoid a user getting lost, and improve safety of automatic driving.
Fig. 1 is a schematic diagram of a network architecture to which the prompting method provided in the embodiment of the present application is applied. Referring to fig. 1, the network architecture includes a terminal device 1 and a server 2, a navigation APP is installed on the terminal device 1, a user inputs a starting point position and a destination through the APP on the terminal device 1 and sends the starting point position and the destination to the server 2, the server calculates a candidate navigation route according to the starting point position and the destination, predicts whether a situation of limited positioning capability will occur when the terminal device 1 moves on the candidate navigation route, and if the situation of limited positioning capability will occur when the terminal device is predicted, prompt information is sent to the terminal device to prompt the user that the situation of limited positioning capability will occur when the terminal device moves on the candidate navigation route.
In the architecture shown in fig. 1, the terminal device 1 may be a mobile terminal device such as a mobile phone and a tablet computer of a user, or may be a vehicle-mounted terminal, and the server 2 may be an independently deployed server, an independent server, or a server cluster formed by multiple servers, and the like.
Next, a navigation prompting method according to an embodiment of the present application is described in detail with reference to fig. 1, and for an example, refer to fig. 2.
Fig. 2 is a flowchart of a navigation prompting method provided in the embodiment of the present application, which is described in detail in the embodiment of the present application from the perspective of a server, and the embodiment includes:
101. candidate navigation routes are determined.
In the embodiment of the present application, the candidate navigation route refers to any route between the start position and the destination of the terminal device when the terminal device is located at the start position.
For example, when the terminal device is a vehicle-mounted terminal, a driver inputs an initial position and a destination through a navigation APP on the vehicle-mounted terminal, the server calculates a plurality of navigation routes according to the initial position and the destination, and pushes several navigation routes ranked earlier in the navigation routes to the vehicle-mounted terminal according to a preset rule for the driver to select, wherein the navigation routes ranked earlier are candidate navigation routes. The preset rules include, for example, minimum traffic lights passing through, shortest route, and the like.
For another example, the terminal device is a mobile terminal of a user, such as a mobile phone, a tablet computer, and the like, the user inputs an initial position and a destination through a navigation APP on the mobile terminal, the server calculates a plurality of navigation routes according to the initial position and the destination, and pushes several navigation routes ranked earlier in the navigation routes to the mobile terminal according to a preset rule, and the navigation routes ranked earlier or first ranked are candidate navigation routes.
For another example, when the terminal device is a vehicle-mounted terminal, the user selects and runs a certain navigation route from the plurality of navigation routes ranked at the top. In the driving process, yaw occurs, the server determines the navigation route again according to the position information reported by the vehicle-mounted terminal in real time, and one or more newly determined navigation routes are the candidate navigation routes in the embodiment of the application.
102. And predicting whether the terminal equipment has limited positioning capability when passing through the candidate navigation route by using the positioning capability thermal map.
The positioning capacity thermodynamic map is used for representing the positioning capacity of different areas of a preset geographic area, and the candidate navigation route is located in the preset geographic area.
Illustratively, a positioning capability thermal map is stored in advance on the server, and the positioning capability thermal map is used for representing the positioning capability of the terminal device when the terminal device moves in a preset geographic area. The server can push the positioning ability thermal map to the terminal device, and the user can adjust the area of the positioning ability thermal map displayed on the terminal device through operations such as zooming in and zooming out. For example, referring to fig. 3, fig. 3 is a schematic diagram of a thermodynamic map of location capability in a navigation prompting method provided by an embodiment of the present application.
Referring to fig. 3, different filled portions represent different positioning capability values, and the larger the positioning capability value is, the stronger the positioning capability of the terminal device is, the less susceptible the terminal device is to be interfered by the outside. In fig. 3, a gray filled circle 1 represents a start position, a gray filled circle 2 represents a destination, and a black arrowed line represents a candidate navigation route. It follows that if the terminal device moves according to the candidate navigation route, a plurality of road segments with different positioning capabilities are passed. Therefore, the server can predict whether a positioning capacity limited condition occurs when the terminal device passes through the candidate navigation route according to the positioning capacity value of each road section.
103. And if the terminal equipment is in a situation of limited positioning capability when moving on the candidate navigation route, sending prompt information to the terminal equipment.
The prompt information is used for prompting that the positioning capability of the terminal equipment is limited when the terminal equipment moves on the candidate navigation route.
For example, if the server at the cloud predicts whether the terminal device will have a situation of limited positioning capability when passing through the candidate navigation route, in order to avoid navigation interruption and the like when the terminal device moves to the candidate navigation route, the server pushes prompt information to the terminal device so as to prompt a user that positioning failure, navigation error and the like may occur if the user moves according to the candidate navigation route.
According to the navigation prompting method provided by the embodiment of the application, after the candidate navigation route is determined, the server predicts whether the situation that the positioning capacity is limited occurs or not when the terminal device passes through the candidate navigation route by using the pre-stored positioning capacity thermal map, and sends the prompting information to the terminal device to prompt the user, so that the user can search a new navigation route again or stop driving, the terminal device is prevented from depending on wrong navigation and being incapable of reaching the destination, the user is prevented from getting lost, and the automatic driving safety is improved.
In the above embodiment, when the server predicts whether the terminal device will have a situation of limited positioning capability when passing through the candidate navigation route by using the positioning capability thermal map, the server determines the positioning capability of the terminal device when the terminal device is driving on each road segment of the candidate navigation route from the positioning capability thermal map, so as to obtain the positioning capability value of each road segment of the terminal device on the candidate navigation route. And then, the server predicts whether the situation of limited positioning capability occurs when the terminal equipment moves on the navigation route according to the positioning capability values of all road sections on the navigation route.
For example, referring to fig. 3 again, the positioning capability values of different filling areas on the positioning capability thermal map are different, and the candidate navigation route can be divided into a plurality of segments, such as the segment a-the segment f in the map, according to the positioning capability values of different areas. After obtaining a plurality of road sections, the server determines whether at least one road section with the positioning capability value smaller than a preset threshold value exists in the road sections, and if the road section with the positioning capability value smaller than the preset threshold value exists, the server considers that the positioning capability is limited when the terminal device moves on the candidate navigation route.
In order to avoid misjudgment, the server can continuously judge whether the candidate navigation route has an intersection after predicting that at least one road section with the positioning capability value smaller than the preset threshold exists on the candidate navigation route, and if the road section does not have an intersection, the server shows that even if the terminal device is limited in the positioning capability of the road section, the terminal device cannot move to other roads because the road section does not have an intersection, so that the server considers that the candidate navigation route does not have the road section with the limited positioning capability.
By adopting the method, the server predicts whether the situation that the positioning capacity is limited occurs when the terminal equipment passes through the candidate navigation route or not according to the positioning capacity value of each road section of the candidate navigation route, and the purpose of predicting the positioning capacity of the terminal equipment when the terminal equipment moves on the candidate navigation route in advance is achieved.
In the above embodiment, after predicting that the terminal device may have a situation where the positioning capability is limited when passing through the candidate navigation route, the server may prompt the user that the positioning capability is limited, and may send at least one of a position of a limited road segment on the candidate navigation route, a proportion of the limited road segment on the candidate navigation route, a limited degree of the limited road segment, and a time point when the limited road segment is released from limitation to the terminal device through the prompt information.
For example, referring to fig. 3 again, if the server determines that the terminal device has a limited positioning capability when moving on the road segment b, the road segment d, and the road segment f, the server informs the terminal device of the positions of the road segment b, the road segment d, and the road segment f. The server can also calculate the ratio of the sum of the lengths of the road section b, the road section d and the road section f to the length of the whole candidate navigation route, thereby determining the proportion of the limited road section in the candidate navigation route and further sending the proportion to the terminal equipment.
In general, the higher the duty ratio, the higher the degree of limitation. Therefore, the server can also determine the limited degree of the candidate navigation route according to the proportion of the limited route on the candidate navigation route and send the limited degree to the terminal equipment. Because the positioning capability values of different areas on the positioning capability thermodynamic map are different, when two different road sections on the navigation route are both limited road sections, the positioning capability values of the two road sections may also be different. Therefore, the server may consider both the length of the restricted section and the positioning ability value of the restricted exercise when determining the restricted degree of the candidate navigation route. For example, the limiting coefficients of the limited road sections with different lengths and the coefficients of different positioning capability values are preset, and then when the limiting degree of the candidate navigation route is determined, the limiting degree of the candidate navigation route can be determined by weighting the limiting coefficients of the lengths and the limiting coefficients of the positioning capability values.
After the terminal device receives the prompt message, the user can decide whether to search a new navigation route or drive according to a candidate navigation route according to the position, the occupation ratio, the limited degree and the like of the limited road section. For example, if the user is familiar with the road segment in the limited location, the user may follow the candidate navigation route.
When the limited positioning capacity is caused by temporary factors such as weather, the server can also send the time point for releasing the limited road section to the terminal equipment for the user to select to start immediately or change the time to start. The time point at which the limitation is released is, for example, a time point at which severe weather ends.
By adopting the scheme, the position, the occupation ratio, the limited degree and the like of the limited road section are sent to the terminal equipment, so that the user can know the detailed condition of the limited road section on the candidate navigation route, and the user can make a decision conveniently.
In the following, how the server generates the location capability thermal map and uses the location capability thermal map in the above embodiment is described in detail. For example, referring to fig. 4, fig. 4 is a schematic process diagram of generating and using a positioning capability thermal map provided by an embodiment of the present application.
Referring to fig. 4, the present embodiment includes:
201. and acquiring distribution information of the positioning equipment in the geographic area.
The positioning distribution information is used to indicate the distribution status of the positioning devices used for positioning the terminal device in the geographic area, such as the positions of the positioning devices.
For example, the positioning device may be a GPS or GNSS base station for satellite positioning, or may be a wifi device, a Frequency Modulation (FM) related device, and the like for terrestrial positioning, and the embodiments of the present application are not limited thereto.
202. Building distribution information within a geographic area is obtained.
Wherein the building distribution information is used for indicating the distribution condition of buildings influencing the communication between the terminal equipment and the positioning equipment in the geographic area.
For example, since a building may cause signal blocking or the like, the server may acquire building information affecting communication between the vehicle and the positioning device in advance. Or, the server may also obtain building distribution information and positioning device distribution information in a preset geographic area, and determine a building affecting communication between the vehicle and the positioning device according to a position relationship between the building and the positioning device, a signal penetration capability of the building, and the like.
203. And generating a positioning capability thermodynamic map according to the positioning equipment distribution information and the building distribution information.
For example, for a fixed preset geographical area, the positioning device and the building are fixed for a period of time, and therefore, the positioning capability thermal map generated according to the positioning device distribution information and the building distribution information is fixed for a longer period of time. The server can determine whether the terminal equipment has the limited positioning capacity condition when moving on the candidate navigation route according to the positioning capacity heat map without considering other temporary factors.
By adopting the scheme, the purpose of generating the thermal map with fixed positioning capacity by the server is achieved.
However, the location capability of each area within a geographic area may be affected by uncertainty such as weather, in addition to the distribution of location equipment and buildings. Therefore, the server needs to update the thermal map with fixed positioning capability before determining whether the situation that the positioning capability is limited occurs when the terminal device moves on the candidate navigation route by using the thermal map. Therefore, in fig. 4, optionally, the method may further include:
204. and acquiring weather information.
The weather information is used for indicating weather conditions when the terminal equipment moves on the candidate navigation route.
205. And acquiring historical information.
And the history information is used for indicating the limited road sections which are reported by the terminal equipment of the candidate navigation route.
206. And updating the positioning capacity heat map according to the weather information and/or the historical information so as to obtain the actual positioning capacity heat map.
For example, the server may update the location capability thermal map according to at least one of weather information and historical information.
The weather information is considered because the weather with high air impurities, such as heavy rain, haze and the like, affects the communication capacity of the terminal device and the positioning device, so the server can acquire the current weather information when the terminal device is at the initial position, determine the adjustment amount of the positioning capacity of each road section according to the weather information, and the adjustment amount is higher when the air impurities are higher. And then, the server subtracts the adjustment quantity from the positioning capacity value of each road section in the fixed positioning capacity, so that the updated positioning capacity thermodynamic map can be obtained. By adopting the scheme, the map with the positioning capacity can be updated by combining with real-time weather.
The reason why the history information is considered is that the positioning capability of a certain area or a certain road section within the preset geographic range is abnormal due to a temporary fault and the like. When the historical vehicles and the like pass through the candidate navigation routes, the abnormity can be reported to the server, and after the server receives the historical information sent by the historical vehicles, the thermal map with the positioning capacity is updated according to the limited road sections indicated by the historical information. By adopting the scheme, the positioning capacity map can be updated by combining historical information.
According to the steps 201 to 206, the map of the location ability of the present application can be obtained. Then, the server can predict whether the terminal equipment has the situation of limited positioning capability when passing through the candidate navigation route by using the positioning capability thermal map. See step 207-step 210 for details.
207. The server determines candidate navigation routes.
Illustratively, a user inputs a starting point position and a destination through an APP on a terminal device and sends a navigation request to a server, and the server calculates a candidate navigation route according to the starting point position and the destination. Or, the terminal device may report the location information in real time during the moving process, and the server calculates the candidate navigation route according to the location information reported in real time by the terminal device and the destination initially input by the user.
208. The server predicts whether the terminal device will have a limited positioning capability when passing through the candidate navigation route by using the positioning capability thermal map, and if the terminal device will have the limited positioning capability when moving on the candidate navigation route, step 209 is executed; if the terminal device moves on the candidate navigation route and the situation of limited positioning capability occurs, step 210 is executed.
209. And the server sends prompt information which carries the limited degree, the limited road section proportion and the like of the navigation route.
210. The server instructs the terminal device to move according to the candidate navigation route.
In the above, a specific implementation of the navigation prompting method mentioned in the embodiment of the present disclosure is introduced, and the following is an embodiment of the apparatus of the present disclosure, which may be used to implement the embodiment of the method of the present disclosure. For details not disclosed in the embodiments of the apparatus of the present disclosure, refer to the embodiments of the method of the present disclosure.
Fig. 5 is a schematic structural diagram of a navigation prompt device according to an embodiment of the present disclosure. The apparatus may be integrated in or implemented by a server. As shown in fig. 5, in this embodiment, the navigation prompt apparatus 100 may include:
the processing unit 11 is configured to determine a candidate navigation route, and predict whether a situation in which a positioning capability is limited may occur when a terminal device passes through the candidate navigation route by using a positioning capability thermal map, where the positioning capability thermal map is used to represent positioning capabilities of different areas of a preset geographic area, and the candidate navigation route is located in the preset geographic area;
a sending unit 12, configured to send, if the processing unit 11 determines that a situation in which the positioning capability is limited occurs when the terminal device moves on the candidate navigation route, prompt information to the terminal device, where the prompt information is used to prompt that the positioning capability is limited when the terminal device moves on the candidate navigation route.
In a feasible design, when predicting whether a situation that a terminal device is limited in positioning capability will occur when passing through the candidate navigation route by using the positioning capability thermal map, the processing unit 11 is configured to determine a positioning capability value of the terminal device when the terminal device travels on each road segment of the candidate navigation route from the positioning capability thermal map, and predict whether the situation that the terminal device is limited in positioning capability will occur when the terminal device moves on the candidate navigation route according to the positioning capability value of each road segment on the candidate navigation route.
In a feasible design, the processing unit 11 is configured to, when predicting whether a situation that a positioning capability is limited may occur when the terminal device moves on the candidate navigation route according to a positioning capability value of each road segment on the candidate navigation route, determine whether a road segment with a positioning capability value lower than a preset threshold exists on the candidate navigation route, and if a road segment with a positioning capability value lower than a preset threshold exists on the candidate navigation route, predict that a situation that a positioning capability is limited may occur when the terminal device moves on the candidate navigation route.
In a feasible design, the processing unit 11 is further configured to, before predicting whether a situation where a terminal device is limited in positioning capability may occur when passing through the candidate navigation route by using a positioning capability thermal map, obtain positioning device distribution information and building distribution information in the geographic area, where the positioning device distribution information is used to indicate a distribution situation of positioning devices used for positioning the terminal device in the geographic area, and the building distribution information is used to indicate a distribution situation of buildings affecting communication between the terminal device and the positioning device in the geographic area, and generate the positioning capability thermal map according to the positioning device distribution information and the building distribution information.
In a feasible design, before predicting whether a situation that a terminal device is limited in positioning capability will occur when passing through the candidate navigation route by using the positioning capability thermal map, the processing unit 11 is further configured to obtain weather information, where the weather information is used to indicate a weather condition when the terminal device moves on the candidate navigation route, determine an adjustment amount of the weather condition on the positioning capability value of each road segment in the positioning capability thermal map, and adjust the positioning capability value of a corresponding road segment according to each adjustment amount, so as to update the positioning capability thermal map.
In a feasible design, the processing unit 11 is further configured to, before predicting whether a situation that a terminal device is limited in positioning capability will occur when passing through the candidate navigation route by using the positioning capability thermal map, obtain historical information, where the historical information is used to indicate a limited road segment reported by the terminal device that has historically passed through the candidate navigation route, and update the positioning capability thermal map according to the limited road segment.
In one possible design, the prompt information includes at least one of a location of a restricted road segment on the candidate navigation route, a percentage of the restricted road segment on the candidate navigation route, a degree of restriction of the restricted road segment, and a time point at which the restricted road segment is released from restriction.
Referring to fig. 5 again, in a possible design, the navigation prompt apparatus 100 further includes:
a receiving unit 13, configured to receive a navigation request sent by the terminal device, where the navigation request carries an origin position and a destination;
the processing unit 11 is configured to determine at least one candidate navigation route according to the starting point position and the destination when determining the candidate navigation route.
The information recommendation device provided by the embodiment of the disclosure can be used in the method executed by the server in the above embodiments, and the implementation principle and the technical effect are similar, and are not described herein again.
According to an embodiment of the present application, an electronic device and a readable storage medium are also provided.
FIG. 6 is a block diagram of an electronic device for implementing a navigation prompt method of an embodiment of the present disclosure. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be examples only, and are not meant to limit implementations of the present application that are described and/or claimed herein.
As shown in fig. 6, the electronic apparatus includes: one or more processors 21, memory 22, and interfaces for connecting the various components, including high-speed interfaces and low-speed interfaces. The various components are interconnected using different buses and may be mounted on a common motherboard or in other manners as desired. The processor may process instructions for execution within the electronic device, including instructions stored in or on the memory to display graphical information of a GUI on an external input/output apparatus (such as a display device coupled to the interface). In other embodiments, multiple processors and/or multiple buses may be used, along with multiple memories and multiple memories, as desired. Also, multiple electronic devices may be connected, with each device providing portions of the necessary operations (e.g., as a server array, a group of blade servers, or a multi-processor system). In fig. 6, one processor 21 is taken as an example.
The memory 22, as a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules (e.g., the processing unit 11, the transmitting unit 12, and the receiving unit 13 shown in fig. 5) corresponding to the navigation prompt method in the embodiment of the present application. The processor 21 executes various functional applications of the server and data processing, i.e., implements the navigation prompt method in the above method embodiment, by running non-transitory software programs, instructions, and modules stored in the memory 22.
The memory 22 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the navigation prompt electronic apparatus, and the like. Further, the memory 22 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 22 may optionally include memory located remotely from the processor 21, which may be connected to the electronic device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The electronic device may further include: an input device 23 and an output device 24. The processor 21, the memory 22, the input device 23 and the output device 24 may be connected by a bus or other means, as exemplified by the bus connection in fig. 6.
The input device 23 may receive input numeric or character information and generate key signal inputs related to user settings and function control of the navigation prompt electronic apparatus, such as a touch screen, keypad, mouse, track pad, touch pad, pointer stick, one or more mouse buttons, track ball, joystick, or other input device. The output devices 24 may include a display device, auxiliary lighting devices (e.g., LEDs), and tactile feedback devices (e.g., vibrating motors), among others. The display device may include, but is not limited to, a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display, and a plasma display. In some implementations, the display device can be a touch screen.
Various implementations of the systems and techniques described here can be realized in digital electronic circuitry, integrated circuitry, application specific ASICs (application specific integrated circuits), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs that are executable and/or interpretable on a programmable system including at least one programmable processor, which may be special or general purpose, receiving data and instructions from, and transmitting data and instructions to, a storage system, at least one input device, and at least one output device.
These computer programs (also known as programs, software applications, or code) include machine instructions for a programmable processor, and may be implemented using high-level procedural and/or object-oriented programming languages, and/or assembly/machine languages. As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, apparatus, and/or device (e.g., magnetic discs, optical disks, memory, Programmable Logic Devices (PLDs)) used to provide machine instructions and/or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal used to provide machine instructions and/or data to a programmable processor.
To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic, speech, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a back-end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back-end, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), Wide Area Networks (WANs), and the Internet.
The computer system may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other.
The embodiment of the present application further provides a navigation prompting method, including: determining a candidate navigation route, determining whether a situation that the positioning capacity is limited occurs when a vehicle runs on the candidate navigation route, and if the situation that the positioning capacity is limited occurs when the terminal device moves on the candidate navigation route, sending prompt information to the terminal device, wherein the prompt information is used for prompting that the positioning capacity is limited when the terminal device moves on the candidate navigation route.
The specific implementation principle of this embodiment can be referred to the description of the above embodiment, and is not described herein again.
According to the technical scheme of the embodiment of the application, after the server determines the candidate navigation route, whether the situation that the positioning capacity is limited occurs when the terminal equipment passes through the candidate navigation route is predicted by utilizing the pre-stored positioning capacity thermal map, and the prompting information is sent to the terminal equipment to prompt the user, so that the user can search a new navigation route again or stop driving, the situation that the terminal equipment cannot reach the destination depending on wrong navigation is avoided, the user is prevented from getting lost, and the automatic driving safety is improved.
It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present application may be executed in parallel, sequentially, or in different orders, and the present invention is not limited thereto as long as the desired results of the technical solutions disclosed in the present application can be achieved.
The above-described embodiments should not be construed as limiting the scope of the present application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (19)
1. A navigation prompting method is characterized by comprising the following steps:
determining a candidate navigation route;
predicting whether a situation that the positioning capacity is limited occurs when the terminal equipment passes through the candidate navigation route by using a positioning capacity thermodynamic map, wherein the positioning capacity thermodynamic map is used for representing the positioning capacity of different areas of a preset geographic area, and the candidate navigation route is located in the preset geographic area;
and if the terminal equipment moves on the candidate navigation route and the positioning capacity is limited, sending prompt information to the terminal equipment, wherein the prompt information is used for prompting that the positioning capacity is limited when the terminal equipment moves on the candidate navigation route.
2. The method according to claim 1, wherein the using the location capability thermal map to predict whether a location capability limited situation will occur when the terminal device passes through the candidate navigation route comprises:
determining a positioning capacity value of the terminal equipment when the terminal equipment runs on each road section of the candidate navigation route from the positioning capacity thermal map;
and predicting whether the terminal equipment has limited positioning capability when moving on the candidate navigation route according to the positioning capability value of each road section on the candidate navigation route.
3. The method according to claim 2, wherein the predicting whether a situation of limited positioning capability occurs when the terminal device moves on the candidate navigation route according to the positioning capability value of each road segment on the candidate navigation route comprises:
and determining whether a road section with a positioning capability value lower than a preset threshold value exists on the candidate navigation route, and if the road section with the positioning capability value lower than the preset threshold value exists on the candidate navigation route, predicting that the positioning capability is limited when the terminal device moves on the candidate navigation route.
4. The method according to any one of claims 1-3, wherein before the using the location-capability thermal map to predict whether a location-capability-limited condition will occur when the terminal device passes through the candidate navigation route, the method further comprises:
acquiring positioning device distribution information and building distribution information in the geographic area, wherein the positioning device distribution information is used for indicating the distribution condition of positioning devices used for positioning the terminal device in the geographic area, and the building distribution information is used for indicating the distribution condition of buildings influencing communication between the terminal device and the positioning devices in the geographic area;
and generating the positioning capacity thermodynamic map according to the positioning equipment distribution information and the building distribution information.
5. The method according to any one of claims 1-3, wherein before the using the location-capability thermal map to predict whether a location-capability-limited condition will occur when the terminal device passes through the candidate navigation route, the method further comprises:
acquiring weather information, wherein the weather information is used for indicating weather conditions when the terminal equipment moves on the candidate navigation route;
determining the adjustment amount of the weather condition to the positioning capacity value of each road section in the positioning capacity thermodynamic map;
and adjusting the positioning capacity value of the corresponding road section according to each adjustment quantity so as to update the positioning capacity thermodynamic map.
6. The method according to any one of claims 1-3, wherein before the using the location-capability thermal map to predict whether a location-capability-limited condition will occur when the terminal device passes through the candidate navigation route, the method further comprises:
acquiring historical information, wherein the historical information is used for indicating a limited road section which is reported by terminal equipment of the candidate navigation route;
and updating the positioning capacity thermodynamic map according to the limited road section.
7. The method according to any one of claims 1-3, wherein the prompting information comprises at least one of a location of a restricted road segment on the candidate navigation route, a proportion of the restricted road segment on the candidate navigation route, a degree of restriction of the restricted road segment, and a time point at which the restricted road segment is released from restriction.
8. The method according to any one of claims 1-3, wherein the determining a candidate navigation route comprises:
receiving a navigation request sent by the terminal equipment, wherein the navigation request carries a starting point position and a destination;
and determining at least one candidate navigation route according to the starting point position and the destination.
9. A navigation prompt apparatus, comprising:
the terminal equipment comprises a processing unit, a processing unit and a processing unit, wherein the processing unit is used for determining a candidate navigation route and predicting whether a situation that the positioning capacity is limited occurs when the terminal equipment passes through the candidate navigation route by using a positioning capacity thermodynamic map, the positioning capacity thermodynamic map is used for representing the positioning capacity of different areas of a preset geographic area, and the candidate navigation route is located in the preset geographic area;
and the sending unit is used for sending prompt information to the terminal equipment if the processing unit determines that the situation that the positioning capacity is limited occurs when the terminal equipment moves on the candidate navigation route, wherein the prompt information is used for prompting that the positioning capacity is limited when the terminal equipment moves on the candidate navigation route.
10. The apparatus of claim 9, wherein the processing unit is configured to determine a location capability value of the terminal device when the terminal device travels on each segment of the candidate navigation route from the location capability thermal map when predicting whether a situation of limited location capability occurs when the terminal device passes through the candidate navigation route by using the location capability thermal map, and predict whether the situation of limited location capability occurs when the terminal device moves on the candidate navigation route according to the location capability value of each segment on the candidate navigation route.
11. The apparatus according to claim 10, wherein the processing unit is configured to, when predicting whether a situation with limited location capability occurs when the terminal device moves on the candidate navigation route according to the location capability values of the segments on the candidate navigation route, determine whether a segment with a location capability value lower than a preset threshold exists on the candidate navigation route, and if a segment with a location capability value lower than a preset threshold exists on the candidate navigation route, predict that a situation with limited location capability occurs when the terminal device moves on the candidate navigation route.
12. The apparatus according to any one of claims 9 to 11,
the processing unit is further configured to acquire positioning device distribution information and building distribution information in the geographic area before predicting whether a situation that the positioning capability is limited occurs when the terminal device passes through the candidate navigation route by using the positioning capability thermal map, where the positioning device distribution information is used to indicate a distribution situation of positioning devices used for positioning the terminal device in the geographic area, the building distribution information is used to indicate a distribution situation of buildings affecting communication between the terminal device and the positioning devices in the geographic area, and the positioning capability thermal map is generated according to the positioning device distribution information and the building distribution information.
13. The apparatus according to any one of claims 9 to 11,
the processing unit is further configured to acquire weather information before predicting whether a situation that the terminal device is limited in positioning capability will occur when passing through the candidate navigation route by using the positioning capability thermal map, where the weather information is used to indicate a weather condition when the terminal device moves on the candidate navigation route, determine an adjustment amount of the weather condition on the positioning capability value of each road segment in the positioning capability thermal map, and adjust the positioning capability value of a corresponding road segment according to each adjustment amount to update the positioning capability thermal map.
14. The apparatus according to any one of claims 9 to 11,
the processing unit is further configured to acquire historical information before predicting whether a situation that the terminal device is limited in positioning capability will occur when passing through the candidate navigation route by using the positioning capability thermal map, where the historical information is used to indicate a limited road section reported by the terminal device which has historically passed through the candidate navigation route, and update the positioning capability thermal map according to the limited road section.
15. The apparatus according to any one of claims 9-11, wherein the prompting information comprises at least one of a location of a restricted road segment on the candidate navigation route, a proportion of a restricted road segment on the candidate navigation route, a degree of restriction of the restricted road segment, and a time point at which the restricted road segment is released from restriction.
16. The apparatus of any one of claims 9-11, further comprising:
the receiving unit is used for receiving a navigation request sent by the terminal equipment, and the navigation request carries a starting point position and a destination;
the processing unit is used for determining at least one candidate navigation route according to the starting point position and the destination when determining the candidate navigation route.
17. An electronic device, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-8.
18. A non-transitory computer readable storage medium having stored thereon computer instructions for causing the computer to perform the method of any one of claims 1-8.
19. A navigation prompting method is characterized by comprising the following steps:
determining a candidate navigation route;
determining whether a positioning capacity limited condition occurs when the vehicle runs on the candidate navigation route;
and if the terminal equipment moves on the candidate navigation route and the situation that the positioning capacity is limited occurs, sending prompt information to the terminal equipment, wherein the prompt information is used for prompting that the positioning capacity is limited when the terminal equipment moves on the candidate navigation route.
Priority Applications (3)
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| CN202010475889.4A CN111578954A (en) | 2020-05-29 | 2020-05-29 | Navigation prompting method, device, equipment and readable storage medium |
| JP2021047011A JP7356468B2 (en) | 2020-05-29 | 2021-03-22 | Navigation prompt methods, devices, equipment and readable storage media |
| KR1020210036681A KR102547301B1 (en) | 2020-05-29 | 2021-03-22 | Navigation prompting method, apparatus, device and readable storage medium |
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| CN202010475889.4A CN111578954A (en) | 2020-05-29 | 2020-05-29 | Navigation prompting method, device, equipment and readable storage medium |
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Also Published As
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| JP7356468B2 (en) | 2023-10-04 |
| KR102547301B1 (en) | 2023-06-22 |
| KR20210039351A (en) | 2021-04-09 |
| JP2021101191A (en) | 2021-07-08 |
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