CN112365088B - Method, device and equipment for determining travel key points and readable storage medium - Google Patents
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Abstract
The application discloses a method, a device and equipment for determining a travel key point and a readable storage medium, and belongs to the technical field of vehicle management. The method comprises the following steps: acquiring travel data of a target travel of a target vehicle, wherein the travel data comprises position information corresponding to a plurality of travel track points of the target travel, and the position information corresponding to the travel track points comprises longitude information of the travel track points and latitude information of the travel track points; determining a relation between longitude information of the travel track point and latitude information of the travel track point; at least one trip key point of the target trip is determined based on a relationship between longitude information of the trip track point and latitude information of the trip track point, the trip key point being used for trip analysis. The method enables the determination process of the travel key points to be more flexible, the method does not limit the number of the determined travel key points, and accuracy of the determined travel key points is improved.
Description
Technical Field
The embodiment of the application relates to the technical field of vehicle management, in particular to a method, a device and equipment for determining a travel key point and a readable storage medium.
Background
With the popularization of vehicles and the continuous development of vehicle management technologies, determining the travel key points of vehicles according to the travel tracks of the vehicles becomes a research hotspot of vehicle technical researchers.
In the related art, travel data of a primary travel are acquired, the travel data comprise a plurality of travel track points, a travel starting point and a travel end point of the secondary travel are connected to obtain a line segment, distances from the plurality of travel track points to the line segment are determined, and a travel track point with the largest distance is determined as a travel key point of the secondary travel.
However, since the travel track of the actual travel of the vehicle is generally complex, in the related art, only the travel track point farthest from the connection line between the travel start point and the travel end point of the travel of the vehicle can be used as the travel key point, so that the acquired travel key point is single, the flexibility of acquiring the travel key point is low, and the accuracy of determining the travel track point is low.
Disclosure of Invention
The embodiment of the application provides a method, a device, equipment and a readable storage medium for determining a travel key point, which can be used for solving the problems in the related art. The technical scheme is as follows:
In one aspect, an embodiment of the present application provides a method for determining a trip key point, where the method includes:
Acquiring travel data of a target travel of a target vehicle, wherein the travel data comprises position information corresponding to a plurality of travel track points of the target travel, and the position information corresponding to the travel track points comprises longitude information of the travel track points and latitude information of the travel track points;
Determining a relation between longitude information of the travel track point and latitude information of the travel track point;
And determining at least one trip key point of the target trip based on the relation between the longitude information of the trip track point and the latitude information of the trip track point, wherein the trip key point is used for trip analysis.
In one possible implementation manner, the determining the relationship between the longitude information of the travel track point and the latitude information of the travel track point includes:
fitting to obtain an objective function of latitude information about longitude information based on the longitude information of the travel track point and the latitude information of the travel track point, wherein the objective function is used for indicating the relation between the longitude information of the travel track point and the latitude information of the travel track point;
the determining at least one trip key point of the target trip based on a relationship between longitude information of the trip track point and latitude information of the trip track point includes:
at least one trip key point of the target trip is determined based on an objective function of the latitude information with respect to the longitude information.
In one possible implementation, the determining at least one trip key point of the target trip based on the target function of the latitude information with respect to the longitude information includes:
Obtaining a derivative of the objective function;
Acquiring target longitude information based on the derivative of the target function;
Determining target latitude information corresponding to the target longitude information based on the target longitude information and the target function;
At least one trip key point of the target trip is determined based on the target longitude information and the target latitude information.
In one possible implementation manner, the fitting to obtain the objective function of latitude information about longitude information based on the longitude information of the travel track point and the latitude information of the travel track point includes:
obtaining an initial function by adopting a linear regression model and a polynomial regression model;
And fitting the initial function based on the longitude information of the plurality of travel track points and the latitude information of the plurality of travel track points to obtain an objective function of the latitude information about the longitude information.
In one possible implementation manner, the travel track points include a travel start point, a travel end point and N intermediate track points of the target travel, where N is an integer greater than or equal to 1;
After determining at least one trip key point of the target trip based on the relationship between the longitude information of the trip track point and the latitude information of the trip track point, the method further includes:
acquiring a travel starting point of a first travel of the target vehicle;
acquiring a travel end point of a first travel of the target vehicle;
responsive to the trip start point of the first trip coinciding with the trip start point of the target trip, the trip end point of the first trip coinciding with the trip end point of the target trip, determining a target travel route based on the trip start point, the trip end point, and the at least one trip key point;
And displaying the target driving route.
In one possible implementation manner, the acquiring the travel end point of the first travel of the target vehicle includes:
a trip end point of the first trip of the target vehicle is determined based on a trip start point of the first trip and historical trip data of the target vehicle.
In one possible implementation manner, after the determining at least one trip key point of the target trip based on the relationship between the longitude information of the trip track point and the latitude information of the trip track point, the method further includes:
determining a target service matching the trip key point in response to the target vehicle traveling to the trip key point;
and displaying the target service matched with the travel key point.
In another aspect, an embodiment of the present application provides a device for determining a trip key point, where the device includes:
The system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring travel data of a target travel of a target vehicle, the travel data comprise position information corresponding to a plurality of travel track points of the target travel, and the position information corresponding to the travel track points comprises longitude information of the travel track points and latitude information of the travel track points;
a determining module, configured to determine a relationship between longitude information of the travel track point and latitude information of the travel track point;
The determining module is further configured to determine at least one trip key point of the target trip based on a relationship between longitude information of the trip track point and latitude information of the trip track point, where the trip key point is used for trip analysis.
In one possible implementation manner, the determining module is configured to fit an objective function of latitude information about longitude information based on longitude information of the travel track point and latitude information of the travel track point, where the objective function is used to indicate a relationship between the longitude information of the travel track point and the latitude information of the travel track point;
at least one trip key point of the target trip is determined based on an objective function of the latitude information with respect to the longitude information.
In a possible implementation, the determining module is configured to obtain a derivative of the objective function;
Acquiring target longitude information based on the derivative of the target function;
Determining target latitude information corresponding to the target longitude information based on the target longitude information and the target function;
At least one trip key point of the target trip is determined based on the target longitude information and the target latitude information.
In one possible implementation manner, the determining module is configured to acquire an initial function by using a linear regression model and a polynomial regression model;
And fitting the initial function based on the longitude information of the plurality of travel track points and the latitude information of the plurality of travel track points to obtain an objective function of the latitude information about the longitude information.
In one possible implementation manner, the travel track points include a travel start point, a travel end point and N intermediate track points of the target travel, where N is an integer greater than or equal to 1;
the acquisition module is further used for acquiring a travel starting point of a first travel of the target vehicle; acquiring a travel end point of a first travel of the target vehicle;
The determining module is further configured to determine a target driving route based on the travel start point, the travel end point, and the at least one travel key point, in response to the travel start point of the first travel being consistent with the travel start point of the target travel, the travel end point of the first travel being consistent with the travel end point of the target travel;
The apparatus further comprises:
And the display module is used for displaying the target driving route.
In one possible implementation, the acquiring module is configured to determine a trip end point of the first trip of the target vehicle based on a trip start point of the first trip and historical trip data of the target vehicle.
In one possible implementation, the determining module is further configured to determine, in response to the target vehicle traveling to the trip keypoint, a target service that matches the trip keypoint;
and the display module is used for displaying the target service matched with the travel key point.
In another aspect, an electronic device is provided, where the electronic device includes a processor and a memory, where the memory stores at least one program code, and the at least one program code is loaded and executed by the processor to implement any one of the above-mentioned determining methods for a trip key point.
In another aspect, there is provided a computer readable storage medium having at least one program code stored therein, the at least one program code loaded and executed by a processor to implement any of the above-described methods for determining a trip key point.
In another aspect, a computer program or a computer program product is provided, where at least one computer instruction is stored, where the at least one computer instruction is loaded and executed by a processor, to implement a method for determining a trip key point as described in any one of the above.
The technical scheme provided by the embodiment of the application at least has the following beneficial effects:
According to the technical scheme provided by the embodiment of the application, the travel key points of the target travel are determined according to the travel data of the target travel, so that the determination process of the travel key points of the target travel is more flexible. In addition, the method of the application does not limit the number of the determined travel key points, thereby improving the accuracy of the determined travel key points, and further improving the accuracy of travel analysis when the travel analysis is performed based on the travel key points.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an implementation environment of a method for determining travel key points according to an embodiment of the present application;
FIG. 2 is a flowchart of a method for determining a trip key point according to an embodiment of the present application;
FIG. 3 is a schematic illustration of a vehicle trip trajectory determined based on trip data provided by an embodiment of the present application;
FIG. 4 is a schematic illustration of another vehicle trip trajectory determined based on trip data provided by an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a device for determining a travel key point according to an embodiment of the present application;
Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of an implementation environment of a method for determining a trip key point according to an embodiment of the present application, where, as shown in fig. 1, the implementation environment includes: an electronic device 101.
The electronic apparatus 101 is an in-vehicle terminal installed and operated in a target vehicle, or other types of electronic apparatuses such as remote control, and the product form of the electronic apparatus 101 is not limited in the embodiment of the present application. The electronic device 101 is provided with and runs with a navigation device, and the electronic device 101 is used for executing the method for determining the travel key points provided by the embodiment of the application. Of course, the electronic device 101 may also have other functions in order to provide a more comprehensive and diversified service.
The electronic device 101 may refer broadly to one of a plurality of electronic devices, with the present embodiment being illustrated only by the electronic device 101. Those skilled in the art will appreciate that the number of electronic devices 101 described above may be greater or lesser. For example, the electronic device 101 may be only one, or the electronic device 101 may be more than one, which is not limited by the number and type of the electronic devices according to the embodiments of the present application.
Based on the above implementation environment, the embodiment of the present application provides a method for determining a trip key point, taking a flowchart of the method for determining a trip key point provided by the embodiment of the present application shown in fig. 2 as an example, the method may be executed by the electronic device 101 in fig. 1. As shown in fig. 2, the method comprises the steps of:
In step 201, trip data of a target trip of a target vehicle is acquired, the trip data includes position information corresponding to a plurality of trip track points of the target trip, and the position information corresponding to the trip track points includes longitude information of the trip track points and latitude information of the trip track points.
In one possible implementation, the target trip is a historical trip of the target vehicle, or a trip segment of a historical trip of the target vehicle, which embodiments of the application are not limited to.
In one possible implementation manner, a navigation device is installed and operated in the electronic device, and the navigation device is used for acquiring travel data of a travel of a target vehicle, wherein the travel data comprises a plurality of travel track points of the target travel and position information corresponding to each travel track point. Optionally, the trip data further includes an acquisition time of the position information of each trip track point. The position information corresponding to the travel track point includes longitude information of the travel track point and latitude information of the travel track point. The electronic device may further store the acquired travel data and the acquired time of the travel data in a storage space of the electronic device.
In one possible implementation, the electronic device may further display an acquisition interface of travel data of the target travel, on which a travel start time and a travel end time are input by the target user, determine a length of travel based on the travel start time and the travel end time, and determine the determined length of travel as the target travel. And determining the travel data corresponding to the target travel in the storage space by the electronic equipment, namely acquiring the travel data of the target travel by the electronic equipment.
Fig. 3 is a schematic diagram of a vehicle travel track determined based on travel data according to an embodiment of the present application, where it can be seen that the target vehicle passes through a plurality of travel track points in the travel track. The following table one is a table of position information corresponding to the travel track points of the target travel provided in the embodiment of the present application, and in the table one, only the position information corresponding to the 15 travel track points of the target travel is shown. Of course, the number of the travel track points of the secondary target travel may be more or less, and the number of the travel track points of the secondary target travel is not limited in the embodiment of the present application.
List one
| Longitude information (degree) of travel track point | Latitude information (degree) of travel track point |
| 113.1413297 | 33.76983017 |
| 113.1407912 | 33.7698135 |
| 113.140185 | 33.7698215 |
| 113.1394813 | 33.76988267 |
| 113.1387813 | 33.77001817 |
| 113.1387373 | 33.77018183 |
| 113.1379602 | 33.77040383 |
| 113.1372012 | 33.77063833 |
| 113.1365053 | 33.770847 |
| 113.1358362 | 33.77108933 |
| 113.1351278 | 33.771361 |
| 113.1343802 | 33.77163733 |
| 113.133585 | 33.77189967 |
| 113.1328173 | 33.77214333 |
| 113.1320875 | 33.77239583 |
In the above table one, the position information corresponding to the 15 travel track points of the target travel is shown, that is, the longitude information and the latitude information of the 15 travel track points are shown, for example, the longitude information of the first travel track point is 113.1413297 degrees, and the latitude information of the first travel track point is 33.76983017 degrees; the longitude information of the second travel track point is 113.1407912 degrees, and the latitude information of the second travel track point is 33.7698135 degrees. The longitude information and latitude information of other travel track points are shown in the above table one, and are not described herein.
In one possible implementation manner, after the trip data of the target trip is obtained, the trip data of the target trip is subjected to data cleaning, that is, abnormal trip track points in the trip data are removed. The abnormal travel locus point is generally a point indicating a significant deviation from the travel locus. The implementation manner of determining the abnormal travel track point in the travel data can refer to the related technology, and the embodiment of the application is not described herein again.
Fig. 4 is a schematic diagram of another vehicle travel track determined based on travel data according to an embodiment of the present application, where A, B, C, C2, C3, C4, C5, C6, C7, C8, and C9 are partial travel track points of the secondary travel, D and E are abnormal travel track points, and curve L is a travel track of the secondary travel in fig. 4.
In step 202, a relationship between longitude information of the travel track point and latitude information of the travel track point is determined.
In one possible implementation, the process of determining the relationship between the longitude information of the travel track point and the latitude information of the travel track point is as follows: based on the longitude information of the travel track point and the latitude information of the travel track point, fitting to obtain an objective function of the latitude information about the longitude information, wherein the objective function is used for indicating the relation between the longitude information of the travel track point and the latitude information of the travel track point.
In one possible implementation, the process of fitting to obtain the objective function of latitude information with respect to longitude information based on longitude information of the travel track point and latitude information of the travel track point includes the following steps 1 and 2.
And step 1, acquiring an initial function by adopting a linear regression model and a polynomial regression model.
In one possible implementation, a linear regression model and a polynomial regression model are used to construct a multiple linear regression function, which is shown in equation (1) below.
Y(X)＝θ0+θ1X1+θ2X2+θ3X3+…+θKXK (1)
In the above formula (1), X 1、X2、X3 and X K are feature variables concerning longitude information, Y (X) is latitude information corresponding to the longitude information, K is a positive integer, and θ 0、θ1、θ2、θ3 and θ K are unknowns, respectively.
Wherein, X 1、X2、X3 and X K are feature variables obtained by converting longitude information X.
In one possible implementation, after the multiple linear regression function is obtained, the longitude information is converted to obtain a feature variable about the longitude information, and the initial function is obtained based on the feature variable about the longitude information and the above formula (1).
Illustratively, the process of converting longitude information to obtain feature variables is as follows: performing primary conversion on the longitude information X to obtain a characteristic variable X 3; performing secondary conversion on the longitude information X to obtain a characteristic variable X 2; and converting the longitude information X three times to obtain a characteristic variable X. Based on the feature variable obtained above regarding the longitude information, the obtained initial function is shown in the following formula (2).
Y(X)＝θ0+θ1X3+θ2X2+θ3X (2)
In the above formula (2), X 3 represents X 1 in the above formula (1), X 2 represents X 2 in the above formula (1), and X 3,θ0、θ1、θ2 and θ 3 in the above formula (1) are unknowns.
It should be noted that, the above formula (2) is merely an example of an initial function provided in the embodiment of the present application, and is not intended to limit the initial function. The form of the initial function may be any other form, which is not limited by the embodiment of the present application.
And 2, fitting the initial function based on the longitude information of the plurality of travel track points and the latitude information of the plurality of travel track points to obtain an objective function of the latitude information about the longitude information.
In one possible implementation manner, based on the position information corresponding to the travel track point of the target travel acquired in the step 201, the initial function determined in the step 202 is fitted, and the process of obtaining the target function of the latitude information about the longitude information is as follows: substituting the position information corresponding to the travel track point of the target travel into an initial function, solving the initial function to obtain the value of the unknown in the initial function, and substituting the value of the unknown into the initial function to obtain the target function of latitude information about longitude information.
Illustratively, taking the above-mentioned positional information corresponding to the travel track point in the table one obtained in the step 201 and the formula (2) of the initial function determined in the step 202 as an example, the positional information corresponding to the travel track point in the table one is substituted into the formula (2), and the values of θ 0、θ1、θ2 and θ 3 are obtained by calculating the formula (2). For example, through the above calculation process, the value of θ 0 is-0.1063052, the value of θ 1 is 0.000783482, the value of θ 2 is-0.0531526, and the value of θ 3 is 0.877057. Substituting values of theta 0、θ1、θ2 and theta 3 into the formula (2) to obtain an objective function of latitude information about longitude information, wherein the objective function is shown in the formula (3):
Y(X)＝-0.1063052+0.000783482X3-0.0531526X2+0.877057X (3)
It should be noted that, the above formula (3) is merely an example of an objective function of latitude information about longitude information provided in the embodiment of the present application, and is not intended to limit the objective function of latitude information about longitude information. The formula of the latitude information regarding the objective function of the longitude information may also be in other forms, and embodiments of the present application are not limited in this regard.
In step 203, at least one trip key point of the target trip is determined based on a relationship between the longitude information of the trip track point and the latitude information of the trip track point.
In one possible implementation, the determining at least one trip key point of the target trip based on a relationship between longitude information of the trip track point and latitude information of the trip track point includes: at least one trip key point of the target trip is determined based on an objective function of the latitude information with respect to the longitude information.
In one possible implementation, the process of determining at least one trip key point of the target trip based on the objective function of latitude information with respect to longitude information includes steps 2031 to 2034 described below.
Step 2031, obtaining the derivative of the objective function.
In one possible implementation, based on the objective function obtained in step 202, a derivative of the objective function is obtained by performing a derivative operation on the objective function.
Illustratively, the derivation of the objective function determined in step 202 is performed to obtain a derivative of the objective function of Y' (X) = 0.002050446X 2 -0.10630550x+0.877057.
Step 2032, obtaining target longitude information based on the derivative of the target function.
In one possible implementation, longitude information corresponding to the derivative of the objective function when the derivative is the first numerical value is acquired, and the longitude information is determined as the target longitude information.
Illustratively, longitude information corresponding to zero value of the derivative of the objective function is acquired, and the longitude information is determined as the target longitude information. That is, when Y' (X) = 0.002050446X 2 -0.10630550x+0.877057=0, the corresponding value of X is determined as the target longitude information. When Y' (X) = 0.002050446X 2 -0.10630550x+0.877057=0 is obtained through calculation, the corresponding values of X are x= 113.12198150771624 and x= 113.1432461639682. That is, the target longitude information is 113.12198150771624 degrees and 113.1432461639682 degrees.
The above-mentioned determination of the target longitude information using the first value as an example is not intended to limit the value of the first value. The first value may also be 1, or other values, which are not limited in this embodiment of the present application.
Step 2033, determining target latitude information corresponding to the target longitude information based on the target longitude information and the target function.
In one possible implementation, based on the target longitude information and the target function, determining the target latitude information corresponding to the target longitude information is to substitute the target longitude information into the target function, and calculating to obtain the target latitude information corresponding to the target longitude information.
Illustratively, the target longitude information: 113.12198150771624 degrees are substituted into the formula (3), and the target latitude information is obtained to be 33.77411936490767 degrees through calculation. Target longitude information: 113.1432461639682 degrees are substituted into the formula (3), and the target latitude information is obtained to be 33.769093307100015 degrees through calculation.
Step 2034, determining at least one trip key point of the target trip based on the target longitude information and the target latitude information.
In one possible implementation, location information composed of target longitude information and target latitude information corresponding to the target longitude information is determined as a trip key point of the target trip.
Illustratively, the trip key points of the target trip are (113.12198150771624, 33.77411936490767) and (113.1432461639682, 33.769093307100015) based on the target longitude information determined in the above step 2032 and the target latitude information determined in the above step 2033.
In one possible implementation, the travel track points of the target travel include a travel start point, a travel end point, and N intermediate track points of the target travel, where N is an integer greater than or equal to 1. After determining at least one trip key point of the target trip based on the relationship between the longitude information of the trip track point and the latitude information of the trip track point, the driving route planning may be performed based on the trip start point, the trip end point and the at least one trip key point, and the process is as follows:
The method comprises the steps of obtaining a travel starting point of a first travel of a target vehicle, obtaining a travel ending point of the first travel of the target vehicle, responding to the fact that the travel starting point of the first travel is consistent with the travel starting point of the target travel, enabling the travel ending point of the first travel to be consistent with the travel ending point of the target travel, determining a target travel route based on the travel starting point, the travel ending point and at least one travel key point, and displaying the target travel route.
There are two implementations to obtain the end of travel of the first travel of the target vehicle.
In the first mode, the travel start point and the travel end point of the first travel are acquired based on the input operation of the target user.
In one possible implementation, the electronic device uses a first location input by the target user as a trip start point of the first trip and uses a second location input by the target user as a trip end point of the first trip; or the electronic device takes the first place input by the target user as the stroke end of the first stroke and takes the second place input by the target user as the stroke end of the first stroke.
In a second aspect, a trip end point of a first trip of the target vehicle is determined based on a trip start point of the first trip and historical trip data of the target vehicle.
In one possible implementation, the electronic device obtains location information of the target vehicle at the time of starting, determines the location information as a trip start point of the first trip, and may further obtain a time of starting the target vehicle, and determine a trip end point of the first trip of the target vehicle based on the time of starting the target vehicle, the trip start point of the first trip, and historical trip data of the target vehicle.
The electronic device determines the first position as a travel start point of the first travel, and the time of starting the target vehicle acquired by the electronic device is eight am. The electronic device stores a plurality of pieces of history travel data of the target vehicle, wherein a travel start point is a first position in the plurality of pieces of history travel data, the corresponding time of the travel start point is the history travel data of eight morning points, and a travel end point of the history travel data is determined as a travel end point of the first travel.
It should be noted that any implementation manner may be selected to obtain the start point and the end point of the first stroke, which is not limited in the embodiment of the present application.
In one possible implementation, after determining at least one trip key point of the target trip, the service may also be pushed to the target user based on the trip key point. The process is as follows: in response to the target vehicle traveling to the trip key point, a target service matching the trip key point is determined, and the target service matching the trip key point is displayed.
In one possible implementation manner, a correspondence between a trip key point and a service is stored in the electronic device, and in response to a target vehicle traveling to a certain trip key point, a target service corresponding to the trip key point is determined based on the correspondence, and the target service is displayed by the electronic device.
The travel key point is a first position, the service corresponding to the travel key point is news pushing, a news playing button is displayed on a display interface of the electronic device when the target vehicle runs to the first position, and the electronic device plays news in response to a triggering instruction of the target user on the playing button. Or in response to the target vehicle traveling to the first location, the electronic device plays the news.
It should be noted that, the relationship between the trip key point and the service is set in advance by a technician and stored in the electronic device, so that after the target vehicle runs to the trip key point, the service corresponding to the trip key point is timely pushed to the target user, thereby providing better driving experience for the target user.
According to the method, the travel key points of the target travel are determined according to the travel data of the target travel, so that the determination process of the travel key points of the target travel is more flexible. In addition, the method of the application does not limit the number of the determined travel key points, thereby improving the accuracy of the determined travel key points, and further improving the accuracy of travel analysis when the travel analysis is performed based on the travel key points.
Fig. 5 is a block diagram of a device for determining a travel key point according to an embodiment of the present application, where, as shown in fig. 5, the device includes:
An obtaining module 501, configured to obtain trip data of a target trip of a target vehicle, where the trip data includes position information corresponding to a plurality of trip track points of the target trip, and the position information corresponding to the trip track points includes longitude information of the trip track points and latitude information of the trip track points;
A determining module 502, configured to determine a relationship between longitude information of the travel track point and latitude information of the travel track point;
The determining module 502 is further configured to determine at least one trip key point of the target trip based on a relationship between longitude information of the trip track point and latitude information of the trip track point, where the trip key point is used for trip analysis.
In a possible implementation manner, the determining module 502 is configured to fit an objective function of latitude information with respect to longitude information based on longitude information of the travel track point and latitude information of the travel track point, where the objective function is used to indicate a relationship between the longitude information of the travel track point and the latitude information of the travel track point;
at least one trip key point of the target trip is determined based on an objective function of the latitude information with respect to the longitude information.
In one possible implementation, the determining module 502 is configured to obtain a derivative of the objective function;
acquiring target longitude information based on the derivative of the target function;
determining target latitude information corresponding to the target longitude information based on the target longitude information and the target function;
at least one trip key point of the target trip is determined based on the target longitude information and the target latitude information.
In one possible implementation, the determining module 502 is configured to obtain an initial function using a linear regression model and a polynomial regression model;
And fitting the initial function based on the longitude information of the plurality of travel track points and the latitude information of the plurality of travel track points to obtain an objective function of the latitude information about the longitude information.
In one possible implementation, the travel track point includes a travel start point, a travel end point, and N intermediate track points of the target travel, where N is an integer greater than or equal to 1;
the obtaining module 501 is further configured to obtain a trip start point of a first trip of the target vehicle; acquiring a travel end point of a first travel of the target vehicle;
the determining module 502 is further configured to determine a target driving route based on the trip start point, the trip end point, and the at least one trip key point, in response to the trip start point of the first trip being consistent with the trip start point of the target trip, the trip end point of the first trip being consistent with the trip end point of the target trip;
the apparatus further comprises:
And the display module is used for displaying the target driving route.
In one possible implementation, the determining module 502 is configured to determine a trip end point of the first trip of the target vehicle based on the trip start point of the first trip and historical trip data of the target vehicle.
In one possible implementation, the determining module 502 is further configured to determine, in response to the target vehicle traveling to the trip keypoint, a target service that matches the trip keypoint;
the display module is used for displaying the target service matched with the travel key point.
According to the device, the travel key points of the target travel are determined according to the travel data of the target travel, so that the determination process of the travel key points of the target travel is more flexible. In addition, the method of the application does not limit the number of the determined travel key points, thereby improving the accuracy of the determined travel key points, and further improving the accuracy of travel analysis when the travel analysis is performed based on the travel key points.
It should be understood that, in implementing the functions of the apparatus provided in fig. 5, only the division of the functional modules is illustrated, and in practical application, the functional modules may be allocated to different functional modules according to needs, that is, the internal structure of the apparatus is divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus and the method embodiments provided in the foregoing embodiments belong to the same concept, and specific implementation processes of the apparatus and the method embodiments are detailed in the method embodiments and are not repeated herein.
Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device 600 may be: a smart phone, a tablet computer, an MP3 (Moving Picture Experts Group Audio Layer III, motion picture expert compression standard audio plane 3) player, an MP4 (Moving Picture Experts Group Audio Layer IV, motion picture expert compression standard audio plane 4) player, a notebook computer, or a desktop computer. Electronic device 600 may also be referred to by other names of user devices, portable electronic devices, laptop electronic devices, desktop electronic devices, and the like.
In general, the electronic device 600 includes: a processor 601 and a memory 602.
Processor 601 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 601 may be implemented in at least one hardware form of DSP (DIGITAL SIGNAL Processing), FPGA (Field-Programmable gate array), PLA (Programmable Logic Array ). Processor 601 may also include a main processor, which is a processor for processing data in an awake state, also referred to as a CPU (Central Processing Unit ), and a coprocessor; a coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 601 may be integrated with a GPU (Graphics Processing Unit, image processor) for rendering and drawing of content required to be displayed by the display screen. In some embodiments, the processor 601 may also include an AI (ARTIFICIAL INTELLIGENCE ) processor for processing computing operations related to machine learning.
The memory 602 may include one or more computer-readable storage media, which may be non-transitory. The memory 602 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 602 is used to store at least one instruction for execution by processor 601 to implement the method of determining a trip key point provided by an embodiment of the method of the present application.
In some embodiments, the electronic device 600 may further optionally include: a peripheral interface 603, and at least one peripheral. The processor 601, memory 602, and peripheral interface 603 may be connected by a bus or signal line. The individual peripheral devices may be connected to the peripheral device interface 603 via buses, signal lines or a circuit board. Specifically, the peripheral device includes: at least one of radio frequency circuitry 604, a display 605, a camera assembly 606, audio circuitry 607, a positioning assembly 608, and a power supply 609.
Peripheral interface 603 may be used to connect at least one Input/Output (I/O) related peripheral to processor 601 and memory 602. In some embodiments, the processor 601, memory 602, and peripheral interface 603 are integrated on the same chip or circuit board; in some other embodiments, either or both of the processor 601, memory 602, and peripheral interface 603 may be implemented on separate chips or circuit boards, which is not limited in this embodiment.
The Radio Frequency circuit 604 is configured to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The radio frequency circuit 604 communicates with a communication network and other communication devices via electromagnetic signals. The radio frequency circuit 604 converts an electrical signal into an electromagnetic signal for transmission, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 604 includes: antenna systems, RF transceivers, one or more amplifiers, tuners, oscillators, digital signal processors, codec chipsets, subscriber identity module cards, and so forth. The radio frequency circuit 604 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocol includes, but is not limited to: the world wide web, metropolitan area networks, intranets, generation mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks, and/or WiFi (WIRELESS FIDELITY ) networks. In some embodiments, the radio frequency circuit 604 may further include NFC (NEAR FIELD Communication) related circuits, which is not limited by the present application.
The display screen 605 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display 605 is a touch display, the display 605 also has the ability to collect touch signals at or above the surface of the display 605. The touch signal may be input as a control signal to the processor 601 for processing. At this point, the display 605 may also be used to provide virtual buttons and/or virtual keyboards, also referred to as soft buttons and/or soft keyboards. In some embodiments, the display 605 may be one, disposed on the front panel of the electronic device 600; in other embodiments, the display screen 605 may be at least two, respectively disposed on different surfaces of the electronic device 600 or in a folded design; in other embodiments, the display 605 may be a flexible display disposed on a curved surface or a folded surface of the electronic device 600. Even more, the display 605 may be arranged in a non-rectangular irregular pattern, i.e., a shaped screen. The display 605 may be made of LCD (Liquid CRYSTAL DISPLAY), OLED (Organic Light-Emitting Diode), or other materials.
The camera assembly 606 is used to capture images or video. Optionally, the camera assembly 606 includes a front camera and a rear camera. Typically, the front camera is disposed on the front panel of the terminal and the rear camera is disposed on the rear surface of the terminal. In some embodiments, the at least two rear cameras are any one of a main camera, a depth camera, a wide-angle camera and a tele camera, so as to realize that the main camera and the depth camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize a panoramic shooting and Virtual Reality (VR) shooting function or other fusion shooting functions. In some embodiments, camera assembly 606 may also include a flash. The flash lamp can be a single-color temperature flash lamp or a double-color temperature flash lamp. The dual-color temperature flash lamp refers to a combination of a warm light flash lamp and a cold light flash lamp, and can be used for light compensation under different color temperatures.
The audio circuit 607 may include a microphone and a speaker. The microphone is used for collecting sound waves of users and environments, converting the sound waves into electric signals, and inputting the electric signals to the processor 601 for processing, or inputting the electric signals to the radio frequency circuit 604 for voice communication. For purposes of stereo acquisition or noise reduction, the microphone may be multiple and separately disposed at different locations of the electronic device 600. The microphone may also be an array microphone or an omni-directional pickup microphone. The speaker is used to convert electrical signals from the processor 601 or the radio frequency circuit 604 into sound waves. The speaker may be a conventional thin film speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, not only the electric signal can be converted into a sound wave audible to humans, but also the electric signal can be converted into a sound wave inaudible to humans for ranging and other purposes. In some embodiments, the audio circuit 607 may also include a headphone jack.
The location component 608 is utilized to locate the current geographic location of the electronic device 600 to enable navigation or LBS (Location Based Service, location-based services). The positioning component 608 may be a positioning component based on the United states GPS (Global Positioning System ), the Beidou system of China, or the Galileo system of Russia.
The power supply 609 is used to power the various components in the electronic device 600. The power source 609 may be alternating current, direct current, disposable battery or rechargeable battery. When the power source 609 includes a rechargeable battery, the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery. The wired rechargeable battery is a battery charged through a wired line, and the wireless rechargeable battery is a battery charged through a wireless coil. The rechargeable battery may also be used to support fast charge technology.
In some embodiments, the electronic device 600 further includes one or more sensors 160. The one or more sensors 160 include, but are not limited to: acceleration sensor 611, gyroscope sensor 612, pressure sensor 613, fingerprint sensor 614, optical sensor 615, and proximity sensor 616.
The acceleration sensor 611 can detect the magnitudes of accelerations on three coordinate axes of the coordinate system established with the electronic device 600. For example, the acceleration sensor 611 may be used to detect components of gravitational acceleration in three coordinate axes. The processor 601 may control the display screen 605 to display the user interface in a landscape view or a portrait view according to the gravitational acceleration signal acquired by the acceleration sensor 611. The acceleration sensor 611 may also be used for the acquisition of motion data of a game or a user.
The gyro sensor 612 may detect a body direction and a rotation angle of the electronic device 600, and the gyro sensor 612 may cooperate with the acceleration sensor 611 to collect a 3D motion of the user on the electronic device 600. The processor 601 may implement the following functions based on the data collected by the gyro sensor 612: motion sensing (e.g., changing UI according to a tilting operation by a user), image stabilization at shooting, game control, and inertial navigation.
The pressure sensor 613 may be disposed at a side frame of the electronic device 600 and/or at an underlying layer of the display 605. When the pressure sensor 613 is disposed on a side frame of the electronic device 600, a grip signal of the user on the electronic device 600 may be detected, and the processor 601 performs a left-right hand recognition or a shortcut operation according to the grip signal collected by the pressure sensor 613. When the pressure sensor 613 is disposed at the lower layer of the display screen 605, the processor 601 controls the operability control on the UI interface according to the pressure operation of the user on the display screen 605. The operability controls include at least one of a button control, a scroll bar control, an icon control, and a menu control.
The fingerprint sensor 614 is used to collect a fingerprint of a user, and the processor 601 identifies the identity of the user based on the fingerprint collected by the fingerprint sensor 614, or the fingerprint sensor 614 identifies the identity of the user based on the collected fingerprint. Upon recognizing that the user's identity is a trusted identity, the processor 601 authorizes the user to perform relevant sensitive operations including unlocking the screen, viewing encrypted information, downloading software, paying for and changing settings, etc. The fingerprint sensor 614 may be disposed on the front, back, or side of the electronic device 600. When a physical key or vendor Logo is provided on the electronic device 600, the fingerprint sensor 614 may be integrated with the physical key or vendor Logo.
The optical sensor 615 is used to collect ambient light intensity. In one embodiment, processor 601 may control the display brightness of display 605 based on the intensity of ambient light collected by optical sensor 615. Specifically, when the intensity of the ambient light is high, the display brightness of the display screen 605 is turned up; when the ambient light intensity is low, the display brightness of the display screen 605 is turned down. In another embodiment, the processor 601 may also dynamically adjust the shooting parameters of the camera assembly 606 based on the ambient light intensity collected by the optical sensor 615.
A proximity sensor 616, also referred to as a distance sensor, is typically provided on the front panel of the electronic device 600. The proximity sensor 616 is used to capture the distance between the user and the front of the electronic device 600. In one embodiment, when the proximity sensor 616 detects a gradual decrease in the distance between the user and the front of the electronic device 600, the processor 601 controls the display 605 to switch from the bright screen state to the off screen state; when the proximity sensor 616 detects that the distance between the user and the front of the electronic device 600 gradually increases, the processor 601 controls the display screen 605 to switch from the off-screen state to the on-screen state.
Those skilled in the art will appreciate that the structure shown in fig. 6 is not limiting of the electronic device 600 and may include more or fewer components than shown, or may combine certain components, or may employ a different arrangement of components.
In an exemplary embodiment, there is also provided a computer readable storage medium having stored therein at least one program code loaded and executed by a processor of a computer device to implement any of the above-described methods of determining a trip key point.
Alternatively, the above-mentioned computer readable storage medium may be a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a Read-Only optical disk (Compact Disc Read-Only Memory, CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, and the like.
In an exemplary embodiment, a computer program or a computer program product is also provided, in which at least one computer instruction is stored, which is loaded and executed by a processor of a computer device to implement any of the above-mentioned methods of determining a trip key point.
It should be understood that references herein to "a plurality" are to two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
The foregoing embodiment numbers of the present application are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
The foregoing is illustrative of the present application and is not to be construed as limiting thereof, but rather, any modification, equivalent replacement, improvement or the like which comes within the spirit and principles of the present application are intended to be included within the scope of the present application.
Claims (9)
1. A method for determining a trip key point, the method comprising:
Acquiring travel data of a target travel of a target vehicle, wherein the travel data comprises position information corresponding to a plurality of travel track points of the target travel, the position information corresponding to the travel track points comprises longitude information of the travel track points and latitude information of the travel track points, and the travel data is acquired based on navigation equipment;
fitting to obtain an objective function of latitude information about longitude information based on the longitude information of the travel track point and the latitude information of the travel track point, wherein the objective function is used for indicating the relation between the longitude information of the travel track point and the latitude information of the travel track point;
at least one trip key point of the target trip is determined based on an objective function of the latitude information with respect to the longitude information, the trip key point being used for trip analysis.
2. The method of claim 1, wherein the determining at least one trip key point of the target trip based on an objective function of the latitude information with respect to longitude information comprises:
Obtaining a derivative of the objective function;
Acquiring target longitude information based on the derivative of the target function;
Determining target latitude information corresponding to the target longitude information based on the target longitude information and the target function;
At least one trip key point of the target trip is determined based on the target longitude information and the target latitude information.
3. The method according to claim 1, wherein fitting an objective function of latitude information with respect to longitude information based on longitude information of the travel track point and latitude information of the travel track point comprises:
obtaining an initial function by adopting a linear regression model and a polynomial regression model;
And fitting the initial function based on the longitude information of the plurality of travel track points and the latitude information of the plurality of travel track points to obtain an objective function of the latitude information about the longitude information.
4. A method according to any one of claims 1-3, wherein the travel track points comprise a travel start point, a travel end point, and N intermediate track points of the target travel, the N being an integer greater than or equal to 1;
After the determining the at least one trip key point of the target trip, the method further comprises:
acquiring a travel starting point of a first travel of the target vehicle;
acquiring a travel end point of a first travel of the target vehicle;
responsive to the trip start point of the first trip coinciding with the trip start point of the target trip, the trip end point of the first trip coinciding with the trip end point of the target trip, determining a target travel route based on the trip start point, the trip end point, and the at least one trip key point;
And displaying the target driving route.
5. The method of claim 4, wherein the obtaining the end of travel of the first travel of the target vehicle comprises:
a trip end point of the first trip of the target vehicle is determined based on a trip start point of the first trip and historical trip data of the target vehicle.
6. A method according to any one of claims 1-3, wherein after said determining at least one trip key point of said target trip, said method further comprises:
determining a target service matching the trip key point in response to the target vehicle traveling to the trip key point;
and displaying the target service matched with the travel key point.
7. A device for determining a travel key point, the device comprising:
The navigation device comprises an acquisition module, a navigation module and a navigation module, wherein the acquisition module is used for acquiring travel data of a target travel of a target vehicle, the travel data comprise position information corresponding to a plurality of travel track points of the target travel, the position information corresponding to the travel track points comprise longitude information of the travel track points and latitude information of the travel track points, and the travel data are acquired based on the navigation device;
The determining module is used for fitting to obtain an objective function of latitude information about longitude information based on the longitude information of the travel track point and the latitude information of the travel track point, wherein the objective function is used for indicating the relation between the longitude information of the travel track point and the latitude information of the travel track point;
The determining module is further configured to determine at least one trip key point of the target trip based on an objective function of the latitude information with respect to longitude information, where the trip key point is used for trip analysis.
8. An electronic device comprising a processor and a memory, wherein the memory has stored therein at least one program code that is loaded and executed by the processor to implement the method of determining a trip point as claimed in any one of claims 1 to 6.
9. A computer readable storage medium having stored therein at least one program code, the at least one program code loaded and executed by a processor to implement the method of determining a trip point as recited in any one of claims 1 to 6.
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