CN107063284A - A kind of guidance path measurement of length method and device based on electronic map - Google Patents
A kind of guidance path measurement of length method and device based on electronic map Download PDFInfo
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- CN107063284A CN107063284A CN201710269363.9A CN201710269363A CN107063284A CN 107063284 A CN107063284 A CN 107063284A CN 201710269363 A CN201710269363 A CN 201710269363A CN 107063284 A CN107063284 A CN 107063284A
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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
- G01C21/20—Instruments for performing navigational calculations
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Abstract
The invention discloses a kind of guidance path measurement of length method and device based on electronic map, the measuring method includes the steps, navigation requests information is generated into guidance path；Anchor point is marked on guidance path, after the longitude information, latitude information and the elevation information that obtain each anchor point, the horizontal range of adjacent positioned point is calculated, then calculates the actual range of adjacent positioned point；Guidance path length is calculated by way of the actual range for all adjacent positioned points that add up；The device includes guidance path generation module, anchor point mark module, location information acquisition module, horizontal range computing module, actual distance calculation module and path length computing module.The present invention can pointedly be measured for the path of different geographical environments, and measurement result and the actual traveling distance of user are completely the same, therefore, and the guidance path length that the present invention is measured has the outstanding advantages such as accuracy height, good reliability.
Description
Technical field
The present invention relates to electronic map technique field, specifically for, the present invention is a kind of leading based on electronic map
Bit path measurement of length method and device.
Background technology
With the development of electronic map, increasing user begins to use the electronic map of mobile terminal to be navigated,
It is many convenient that the mode of navigation of electronic map provides for people's trip.But, it is long to there is guidance path in traditional electronic map
The problem of spending inaccurate.For an obvious example, certain user is according to the distance of conditional electronic map denotation from P to Q
W kilometers, the user is that motor vehicle oil tank adds the gasoline for being available for W kilometers of traveling, and motor vehicle and other external conditions are normal, but
The user has found that gasoline when with not reaching Q also in fuel tank has exhausted.It is foregoing it is stated that other factors will not increase oil consumption
Amount, so being the reason for this problem：Distance shown by electronic map is wrong.Conventional navigation also includes navigation of riding
And walking navigation, and the mistake of guidance path length computation can directly affect user and arrive at spent time and body
Power, causes that user experience is poor, satisfaction is bad, bring many inconvenience to user.
Therefore, how to improve guidance path linear measure longimetry accuracy, improve user using electronic map satisfaction and
Experience property, becomes the emphasis of those skilled in the art's technical problem urgently to be resolved hurrily and research.
The content of the invention
To solve the problems such as existing electronic map measure and navigation path length is inaccurate, experience property of user is bad, this hair
It is bright to provide a kind of guidance path measurement of length method and device based on electronic map, from what is analyzed path actual conditions
Angle is measured to guidance path length, and guidance path is innovatively segmented and calculated by the present invention, and each place of path is high
Degree is taken into account, efficiently solves the problem of conditional electronic map is inaccurate to guidance path linear measure longimetry, so as to ensure to survey
The guidance path length measured is the distance of the actual traveling of user.
To realize above-mentioned technical purpose, the invention discloses a kind of guidance path measurement of length based on electronic map
Method, the measuring method comprises the following steps,
Step 1, navigation requests information is monitored using the electronic map installed on mobile terminal, the navigation that user is inputted please
Information is asked to generate guidance path；
Step 2, N number of anchor point is marked on the guidance path, and the principle of mark is：The line of adjacent positioned point formation
Section is covered by the guidance path；Wherein, N=1,2,3 ...；
Step 3, the longitude information, latitude information and height for obtaining each anchor point by the positioner on mobile terminal are believed
Breath；
Step 4, the horizontal range of adjacent positioned point is calculated using the longitude information and latitude information of each anchor point；
Step 5, the difference in height of adjacent positioned point is calculated using the elevation information of each anchor point, if the difference in height is more than
Height threshold, then the difference in height based on Pythagorean theorem method, by adjacent positioned point and the horizontal range of adjacent positioned point are calculated
The actual range of adjacent positioned point；If the difference in height be less than or equal to height threshold, by the level of adjacent positioned point away from
From the actual range as adjacent positioned point；
Step 6, guidance path length is calculated by way of the actual range for all adjacent positioned points that add up.
The present invention innovatively employs segmentation calculating, the mode measure and navigation path length of cumulative summation, measure and navigation road
The height change of each position on path is taken into account during the height of footpath, the guidance path length and the actual row of user of measurement has been reached
The technical purpose that the distance entered fits like a glove.
Further, the measuring method also comprises the following steps,
Step 7, whether detection guidance path changes：If it is, performing step 7a；If it is not, then performing step
7b；
Current navigation path and historical navigation paths, then be compared, generate original path and increment by step 7a
Path, the original path and the collection of the Incremental Route are combined into current navigation path, utilize the side of the step 2 to step 6
Method calculates Incremental Route length, calls the physical length of all consecutive points in the original path for calculating and being obtained during original path, leads to
The physical length for crossing all consecutive points in Incremental Route length and original path calculates current navigation path length, return to step
7；
Step 7b, shows current navigation path length on the screen of the mobile terminal.
On the basis of the accuracy rate of above-mentioned raising guidance path linear measure longimetry, the present invention is by historical navigation paths
The efficiency for improving measurement is called, and further increases the accuracy rate of measurement, meter is reduced in the path calculated by calling
Calculation process, improves the speed of measurement, and the accuracy rate in the path in historical navigation paths Jing Guo actual verification is naturally higher.
Further, in step 1, the navigation requests information inputted according to user generates at least one path planning, by institute
There is path planning to be stored in path list, regard the most short path planning of horizontal length in path list as guidance path；
In step 6, judge whether the horizontal length of other path plannings is all higher than the physical length of guidance path；If
It is then to perform step 7；If it is not, then calculate the physical length of all path plannings, physical length most short path planning is made
For guidance path, step 7 is then performed.
To ensure the reasonability of the present invention, realize to there is the guidance path of real value to carry out guidance path length computation,
The present invention not only selects the path planning of shortest path as guidance path in the generating process of guidance path, also on navigation road
Electrical path length re-starts confirmation after calculating, if its physical length is more than one or more of other path plannings, again
Guidance path is confirmed, so as to ensure science, reasonability and the accuracy of guidance path selection.
Further, in step 1, the traffic congestion index of all path plannings is obtained, traffic congestion index is exceeded pre-
If the path planning of index is deleted from path list, then using the most short path planning of horizontal length in path list as leading
Bit path.
To improve the actual application value of the present invention, traffic congestion situation is considered what is selected in guidance path by the present invention
In step, when seriously being advanced for jam situation to influence user, the present invention directly deletes corresponding guidance path, so as to carry
The high practicality and reliability of the present invention, certainly, this improved technical scheme is often applied to driving navigation.
Further, in step 4, adjacent positioned point is respectively P and Q, and the longitudes of P anchor points is that a, latitude are b, Q anchor points
Longitude be that c, latitude are d, the horizontal range of the P anchor points and the Q anchor points
In step 5, the height of P anchor points is m, and the height of Q anchor points is n, the actual range of P anchor points and Q anchor points
Another technical purpose of the present invention is the provision of a kind of guidance path measurement of length based on electronic map
Device, the measurement apparatus includes guidance path generation module, anchor point mark module, location information acquisition module, horizontal range
Computing module, actual distance calculation module, path length computing module；
The guidance path generation module, the navigation requests information for monitoring navigation requests information, inputting user is given birth to
Into guidance path；
The anchor point mark module, for marking anchor point on the guidance path；
The location information acquisition module, longitude information, latitude information and elevation information for obtaining each anchor point；
The horizontal range computing module, for calculating adjacent positioned using the longitude information and latitude information of each anchor point
The horizontal range of point；
The actual distance calculation module, the actual range for drawing adjacent positioned point；
The path length computing module, goes out guidance path long for the actual distance calculation using all adjacent positioned points
Degree.
The present invention innovatively employs segmentation calculating, the mode measure and navigation path length of cumulative summation, measure and navigation road
The height change of each position on path is taken into account during the height of footpath, the guidance path length and the actual row of user of measurement has been reached
The technical purpose that the distance entered fits like a glove.
Further, the measurement apparatus also includes path change detection module and path length display module；The path
Change detection module, works as detecting whether guidance path changes, and for being calculated when guidance path changes
Preceding guidance path length；The path length display module, for when guidance path does not change in mobile terminal
Current navigation path length is shown on screen.
Further, the guidance path generation module includes guidance path judging unit；The guidance path judges single
The navigation requests information that member is used to be inputted according to user generates at least one path planning, all path plannings is stored in into path
Guidance path is used as in list, using the most short path planning of horizontal length in path list；The path length computing module, also
For comparing the horizontal length of other path plannings and the physical length of guidance path.
Further, the guidance path generation module includes path list optimization unit；The path list optimization is single
Member is used to obtaining the traffic congestion index of all path plannings, traffic congestion index is exceeded to the path planning of default index from road
Deleted in the list of footpath.
Further, the guidance path generation module, anchor point mark module, location information acquisition module, level away from
The electronic map installed on mobile terminal is integrated in from computing module, actual distance calculation module, path length computing module
It is interior.
Beneficial effects of the present invention are：The present invention can pointedly be measured for the path of different geographical environments,
Eliminate the influence that height factor is produced for guidance path linear measure longimetry, measurement result and the actual traveling distance of user complete one
Cause, therefore, the guidance path length that the present invention is measured has the outstanding advantages such as accuracy height, good reliability.
Brief description of the drawings
Fig. 1 is the guidance path measurement of length method flow schematic diagram based on electronic map in the embodiment of the present invention one.
Fig. 2 is the guidance path measurement of length apparatus structure schematic diagram based on electronic map in the embodiment of the present invention one.
Fig. 3 is the determination methods schematic flow sheet of the actual range of adjacent positioned point.
Fig. 4 is the guidance path measurement of length method flow schematic diagram based on electronic map in the embodiment of the present invention two.
Fig. 5 is the guidance path measurement of length apparatus structure schematic diagram based on electronic map in the embodiment of the present invention two.
Embodiment
With reference to Figure of description to a kind of guidance path measurement of length method based on electronic map of the present invention and
Device carries out detailed explanation and illustration.
Embodiment one：
As shown in Figure 1, 2, 3, the present invention disclose in detail a kind of guidance path measurement of length based on electronic map
Method, the measuring method comprises the following steps.
Step 1, navigation requests information is monitored using the electronic map installed on mobile terminal, the navigation that user is inputted please
Ask information generate guidance path, i.e., the navigation requests information inputted according to user be converted to departure place, destination, trip mode,
The information such as travel time；Certainly, the mode of user's input navigation requests information can have a variety of, such as words input, sound are recorded
Enter, picture input etc..
Step 2, N number of anchor point is marked on guidance path, and the principle of mark is：The line segment quilt of adjacent positioned point formation
Guidance path is covered, so as to ensure that each section split out fits like a glove with former guidance path；Wherein, N=1,2,3 ...,
With the increase of path length, the increase of tortuous path degree, N value can increase, and N is selected automatically according to the situation in specific path
Select and determine.
Step 3, such as each anchor point is obtained by the positioner on mobile terminal based on functions such as cellphone GPS positioning
Longitude information, latitude information and elevation information.
Step 4, calculate the horizontal range of adjacent positioned point using the longitude information and latitude information of each anchor point, such as,
Adjacent positioned point is respectively P and Q, and the longitudes of P anchor points is that a, latitude are b, and the longitudes of Q anchor points is that c, latitude are d, P positioning
The horizontal range of point and Q anchor points
Step 5, calculated using the elevation information of each anchor point in the difference in height of adjacent positioned point, the present embodiment, will be adjacent
The difference in height of anchor point is contrasted with height threshold, as shown in figure 3, specifically including following steps.
Step 5a, judges whether the difference in height of adjacent positioned point is more than height threshold, if it is, performing step 5b, such as
It is really no, then perform step 5c.
Step 5b, if difference in height is more than height threshold, based on Pythagorean theorem method, the height by adjacent positioned point
Difference and the horizontal range of adjacent positioned point calculate the actual range of adjacent positioned point, according to the example enumerated in step 4, than
Such as, the height of P anchor points is m, and the height of Q anchor points is n, and the actual range of P anchor points and Q anchor points is：
Step 5c, if difference in height is less than or equal to height threshold, using the horizontal range of adjacent positioned point as adjacent
The actual range of anchor point；For the setting of height threshold, it should be not enough to influence user with the gradient caused by path height change
Distance impression is defined, such as, height threshold=20 centimetre.
Step 6, guidance path length is calculated by way of the actual range for all adjacent positioned points that add up.The present invention
Segmentation calculating, the mode measure and navigation path length of cumulative summation are innovatively employed, by path during measure and navigation path height
The height change of upper each position is taken into account, has reached that the guidance path length and the distance of the actual traveling of user of measurement are kissed completely
The technical purpose of conjunction.
The above-mentioned guidance path measurement of length method and device based on electronic map of correspondence, present invention also offers one
The guidance path measurement of length device based on electronic map is planted, the measurement apparatus includes guidance path generation module, anchor point
Mark module, location information acquisition module, horizontal range computing module, actual distance calculation module, path length computing module；
Guidance path generation module, the navigation requests information generation for monitoring navigation requests information, inputting user is led
Bit path；
Anchor point mark module, for marking anchor point on guidance path；
Location information acquisition module, longitude information, latitude information and elevation information for obtaining each anchor point；
Horizontal range computing module, for calculating adjacent positioned point using the longitude information and latitude information of each anchor point
Horizontal range；
Actual distance calculation module, the actual range for drawing adjacent positioned point；
Path length computing module, guidance path length is gone out for the actual distance calculation using all adjacent positioned points.
In the present embodiment, to improve and optimizing the function of conditional electronic map, guidance path of the present invention generates mould
Block, anchor point mark module, location information acquisition module, horizontal range computing module, actual distance calculation module, path length
Computing module is integrated in the electronic map installed on mobile terminal.
Embodiment two：
As shown in Figure 4,5, the present embodiment and the scheme of embodiment one are essentially identical, and its difference is：The present embodiment increase
The mode of historical navigation paths is called, the historical navigation paths data can be local mobile terminals in past navigation procedure
Middle generation, certain historical navigation paths data can also be by downloading, and in map data base in map data base
Data source can be vast user, the efficiency of measurement is improved by being called to historical navigation paths, and further carry
Calculating process is reduced in the high accuracy rate of measurement, the path calculated by calling, improves the speed of measurement, and historical navigation
The accuracy rate in the path in path Jing Guo actual verification is naturally higher.Specifically, the measuring method also comprises the following steps,
Step 7, whether detection guidance path changes：If it is, performing step 7a；If it is not, then performing step
7b；
Current navigation path and historical navigation paths, then be compared, generate original path and increment by step 7a
The collection of path, original path and Incremental Route is combined into current navigation path, and increment road is calculated using the method for step 2 to step 6
Electrical path length, calls the physical length of all consecutive points in the original path for calculating and being obtained during original path, long by Incremental Route
The physical length of all consecutive points calculates current navigation path length, return to step 7 in degree and original path；
Step 7b, shows current navigation path length on the screen of the mobile terminal.For above-mentioned Incremental Route phase
The data of pass, user may be selected to be uploaded to map server or shared to other friends by social software, so that
Improve the application scenarios of the present invention and use scope.
The above-mentioned further improved guidance path length measurement method of correspondence, the measurement apparatus also includes path change detection
Module and path length display module；Path change detection module, for detecting whether guidance path changes, and is used for
Current navigation path length is calculated when guidance path changes, and specific calculating process can transfer to anchor point to mark mould
Block, location information acquisition module, horizontal range computing module, actual distance calculation module and path length computing module are held
OK；Path length display module, it is current for being shown on the screen of the mobile terminal when guidance path does not change
Guidance path length.
Embodiment three：
The present embodiment and embodiment one or embodiment two are essentially identical, and its difference is：Embodiment improves navigation road
The practicality and reasonability in footpath, realize that the present invention is not only to there is the guidance path of real value to carry out guidance path length computation
The path planning of shortest path is selected in the generating process of guidance path as guidance path, also in guidance path length computation
After re-start confirmation, if its physical length is more than one or more of other path plannings, reaffirm navigation road
Footpath, so as to ensure the science and accuracy of guidance path selection.
Specifically, in step 1, the navigation requests information inputted according to user generates at least one path planning, by institute
There is path planning to be stored in path list, regard the most short path planning of horizontal length in path list as guidance path；No
Only in this way, to improve actual application value of the invention, traffic congestion situation is considered what is selected in guidance path by the present invention
In step, when seriously being advanced for jam situation to influence user, the present invention directly deletes corresponding guidance path, so as to carry
The high practicality and reliability of the present invention, certainly, this improved technical scheme is often applied to driving navigation.In step 1,
The traffic congestion index of all path plannings is obtained, traffic congestion index is exceeded into the path planning of default index from path list
It is middle to delete, then it regard the most short path planning of horizontal length in path list as guidance path.Traffic congestion index is basis
Road situation, the concentrated expression road network that some cities are set is unimpeded or conceptual exponential quantity of congestion, and it is equivalent to handle
Jam situation is digitized, by taking Beijing as an example, and congestion index is " unimpeded " between 0 to 2, is between 2 to 4 " substantially unimpeded ", 4 to
It is " moderate congestion " between 6 to 8 to be between 6 " slight congestion ", is in " heavy congestion ", the present embodiment, to preset between 8 to 10
Index could be arranged to 5, and the path planning by traffic congestion index more than 5 is deleted from path list, be led without being or else used as
The selection of bit path.
In the step 6 of the present embodiment, judge whether the horizontal length of other path plannings is all higher than the reality of guidance path
Length；If it is, performing step 7；If it is not, then the physical length of all path plannings is calculated, physical length is most short
Then path planning performs step 7 as guidance path.
For above-mentioned further improved guidance path length measurement method, the measurement apparatus also includes guidance path and generated
Module includes guidance path judging unit；Guidance path judging unit be used for the navigation requests information that is inputted according to user generate to
A few path planning, all path plannings are stored in path list, by the most short planning of horizontal length in path list
Path is used as guidance path；Path length computing module, is additionally operable to compare the horizontal length and guidance path of other path plannings
Physical length.Guidance path generation module includes path list and optimizes unit；Path list optimization unit is used to obtain all
The traffic congestion index of path planning, the path planning by traffic congestion index more than default index are deleted from path list.
The present invention can pointedly be measured for the path of different geographical environments, and measurement result and the actual traveling distance of user are complete
Complete consistent, therefore, the guidance path length that the present invention is measured has the outstanding advantages such as accuracy height, good reliability.
In the description of this specification, reference term " the present embodiment ", " one embodiment ", " some embodiments ", " show
The description of example ", " specific example " or " some examples " etc. mean to combine the specific features of the embodiment or example description, structure,
Material or feature are contained at least one embodiment of the present invention or example.In this manual, above-mentioned term is shown
The statement of meaning property is necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can in an appropriate manner be combined in any one or more embodiments or example.In addition, in the case of not conflicting,
Those skilled in the art can be by the not be the same as Example or example and non-be the same as Example described in this specification or example
Feature is combined and combined.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Any modification, equivalent substitution and simple modifications for being made in content etc., should be included in the scope of the protection.
Claims (10)
1. a kind of guidance path measurement of length method based on electronic map, it is characterised in that：The measuring method includes as follows
Step,
Step 1, navigation requests information is monitored using the electronic map installed on mobile terminal, the navigation requests that user is inputted are believed
Breath generation guidance path；
Step 2, N number of anchor point is marked on the guidance path, and the principle of mark is：The line segment quilt of adjacent positioned point formation
The guidance path covering；Wherein, N=1,2,3 ...；
Step 3, longitude information, latitude information and the elevation information of each anchor point are obtained by the positioner on mobile terminal；
Step 4, the horizontal range of adjacent positioned point is calculated using the longitude information and latitude information of each anchor point；
Step 5, the difference in height of adjacent positioned point is calculated using the elevation information of each anchor point, if the difference in height is more than height
Threshold value, then the difference in height based on Pythagorean theorem method, by adjacent positioned point and the horizontal range of adjacent positioned point calculate adjacent
The actual range of anchor point；If the difference in height is less than or equal to height threshold, the horizontal range of adjacent positioned point is made
For the actual range of adjacent positioned point；
Step 6, guidance path length is calculated by way of the actual range for all adjacent positioned points that add up.
2. the guidance path measurement of length method according to claim 1 based on electronic map, it is characterised in that：The survey
Amount method also comprises the following steps,
Step 7, whether detection guidance path changes：If it is, performing step 7a；If it is not, then performing step 7b；
Current navigation path and historical navigation paths, then be compared, generate original path and Incremental Route by step 7a,
The original path and the collection of the Incremental Route are combined into current navigation path, are calculated using the method for the step 2 to step 6
Incremental Route length, calls the physical length of all consecutive points in the original path for calculating and being obtained during original path, passes through increment
The physical length of all consecutive points calculates current navigation path length, return to step 7 in path length and original path；
Step 7b, shows current navigation path length on the screen of the mobile terminal.
3. the guidance path measurement of length method according to claim 2 based on electronic map, it is characterised in that：
In step 1, the navigation requests information inputted according to user generates at least one path planning, and all path plannings are stored
In path list, the most short path planning of horizontal length in path list is regard as guidance path；
In step 6, judge whether the horizontal length of other path plannings is all higher than the physical length of guidance path；If it is,
Perform step 7；If it is not, then calculate the physical length of all path plannings, using physical length most short path planning as leading
Bit path, then performs step 7.
4. the guidance path measurement of length method according to claim 3 based on electronic map, it is characterised in that：Step
In 1, the traffic congestion index of all path plannings is obtained, traffic congestion index is exceeded into the path planning of default index from path
Deleted in list, then regard the most short path planning of horizontal length in path list as guidance path.
5. the guidance path measurement of length method based on electronic map according to claim 1 or 4, it is characterised in that：
In step 4, adjacent positioned point is respectively P and Q, and the longitudes of P anchor points is that a, latitude are b, and the longitude of Q anchor points is c, latitude
Spend for d, the horizontal range of the P anchor points and the Q anchor points
In step 5, the height of P anchor points is m, and the height of Q anchor points is n, the actual range of P anchor points and Q anchor points
6. a kind of guidance path measurement of length device based on electronic map, it is characterised in that：The measurement apparatus includes navigation
Path-generating module, anchor point mark module, location information acquisition module, horizontal range computing module, actual distance calculation mould
Block, path length computing module；
The guidance path generation module, the navigation requests information generation for monitoring navigation requests information, inputting user is led
Bit path；
The anchor point mark module, for marking anchor point on the guidance path；
The location information acquisition module, longitude information, latitude information and elevation information for obtaining each anchor point；
The horizontal range computing module, for calculating adjacent positioned point using the longitude information and latitude information of each anchor point
Horizontal range；
The actual distance calculation module, the actual range for drawing adjacent positioned point；
The path length computing module, guidance path length is gone out for the actual distance calculation using all adjacent positioned points.
7. a kind of guidance path measurement of length device based on electronic map according to claim 6, it is characterised in that：
The measurement apparatus also includes path change detection module and path length display module；The path change detection module, is used for
Whether detection guidance path changes, and for calculating current navigation path length when guidance path changes；Institute
Path length display module is stated, for being shown on the screen of the mobile terminal when leading when guidance path does not change
Air route electrical path length.
8. a kind of guidance path measurement of length device based on electronic map according to claim 7, it is characterised in that：
The guidance path generation module includes guidance path judging unit；The guidance path judging unit is used to be inputted according to user
Navigation requests information generate at least one path planning, all path plannings be stored in path list, by path list
Middle horizontal length most short path planning is used as guidance path；The path length computing module, is additionally operable to compare other planning
The horizontal length in path and the physical length of guidance path.
9. a kind of guidance path measurement of length device based on electronic map according to claim 8, it is characterised in that：
The guidance path generation module includes path list and optimizes unit；The path list optimization unit is used to obtain all planning
The traffic congestion index in path, the path planning by traffic congestion index more than default index are deleted from path list.
10. a kind of guidance path measurement of length device based on electronic map according to claim 6 or 9, its feature
It is：The guidance path generation module, anchor point mark module, location information acquisition module, horizontal range computing module, reality
Border distance calculation module, path length computing module are integrated in the electronic map installed on mobile terminal.
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| CN110645993A (en) * | 2018-06-27 | 2020-01-03 | 合肥杰发科技有限公司 | Vehicle navigation positioning method, device, system and storage medium |
| CN111402590A (en) * | 2019-01-03 | 2020-07-10 | 杭州海康威视系统技术有限公司 | Parking guidance method, device, vehicle-mounted unit, center server and system |
| CN115638797A (en) * | 2022-10-19 | 2023-01-24 | 中国标准化研究院 | Navigation system containing convenient trip of new energy automobile |
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