CN107014390A - A kind of route reminding method and device - Google Patents

A kind of route reminding method and device Download PDF

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Publication number
CN107014390A
CN107014390A CN201710158095.3A CN201710158095A CN107014390A CN 107014390 A CN107014390 A CN 107014390A CN 201710158095 A CN201710158095 A CN 201710158095A CN 107014390 A CN107014390 A CN 107014390A
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China
Prior art keywords
route
section
summary info
voice broadcast
bar
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CN201710158095.3A
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Chinese (zh)
Inventor
龚杰
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Beijing Yunzhisheng Information Technology Co Ltd
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Beijing Yunzhisheng Information Technology Co Ltd
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Priority to CN201710158095.3A priority Critical patent/CN107014390A/en
Publication of CN107014390A publication Critical patent/CN107014390A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34Route searching; Route guidance
    • G01C21/3453Special cost functions, i.e. other than distance or default speed limit of road segments
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34Route searching; Route guidance
    • G01C21/36Input/output arrangements for on-board computers
    • G01C21/3626Details of the output of route guidance instructions
    • G01C21/3629Guidance using speech or audio output, e.g. text-to-speech

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Navigation (AREA)
  • Traffic Control Systems (AREA)

Abstract

The invention discloses a kind of route reminding method and device.Methods described includes:Receive the phonetic search instruction of input;Destination and the current location oriented in being instructed according to the phonetic search, search out at least one route for reaching the destination;At least one route is pointed out in the way of voice broadcast, so that user is selected.Pass through technical scheme, so that user can be directly acquainted with the route searched out by voice on the basis of without look at display screen and be gone forward side by side walking along the street line options, and this route prompting mode obviously can bring convenience to user, route selection efficiency is improved, can also avoid that user security may be influenceed due to must look at the display screen where at least one route when selecting route.

Description

A kind of route reminding method and device
Technical field
The present invention relates to field of navigation technology, more particularly to a kind of route reminding method and device.
Background technology
At present, user input destination to obtain route after, the route searched out can show on a display screen for Family is selected, but this route prompting mode in correlation technique may be less direct, it is possible to can be made troubles to user, Especially when user is driving or on foot, this route prompting mode can cause user must bow to see display screen ability Route selection is carried out, this obviously can bring very big inconvenience/puzzlement to user, or even bring security threat.
The content of the invention
The present invention provides a kind of route reminding method and device, can basis during to phonetic search instruction in reception Destination and current location in the phonetic search instruction, search out at least one route for reaching the destination, and then At least one route is pointed out in the way of voice broadcast, so that user is on the basis without look at display screen On the route searched out can be directly acquainted with by voice goes forward side by side walking along the street line options, and this route prompting mode obviously can be to using Convenience is brought at family, improves route selection efficiency, can also be avoided when selecting route due to must look at least one route The display screen at place and user security may be influenceed.
The present invention provides a kind of route reminding method, including:
Receive the phonetic search instruction of input;
Destination and the current location oriented in being instructed according to the phonetic search, search out the arrival destination At least one route;
At least one route is pointed out in the way of voice broadcast, so that user is selected.
In one embodiment, it is described to be pointed out at least one route in the way of voice broadcast, including:
Extract the route summary info of each route at least one route;
The route summary info of each route is pointed out in the way of the voice broadcast, wherein, each road The route summary info of line includes at least one of following information:
The route number of each route, the route running duration of each route, important index is high on each route The service area closest with the current location in target road section, each route in default index, each route The advantageous characteristic of congestion duration, each route.
In one embodiment, it is higher than when the route summary info of each route includes important index on each route During the target road section of default index, the route summary info of each route in extraction at least one route, including:
According to the feature at least one section Zhong Ge sections of each route, the important index in each section is determined;
The section conduct that important index is higher than the default index is filtered out from least one section of each route The target road section of each route, wherein, the feature in each section is including at least one of following:
Each section whether be fastlink, the construction-time in each section and current time time difference it is whether small In preset time is poor, each section whether be loop, each section whether be national highway, each section whether be provincial highway, Whether the running time needed for each section is more than or equal to preset duration.
In one embodiment, when each route route summary info include multinomial information when, it is described will it is described respectively The route summary info of route is pointed out in the way of the voice broadcast, including:
According to default voice broadcast content format, by the multinomial information in the route summary info of each route successively Reported.
In one embodiment, methods described also includes:
After the voice selecting instruction of any bar route in receiving at least one route, according to described any Bar route is navigated.
In one embodiment, after being navigated according to any bar route, methods described also includes:
If any bar route gets congestion, according to the destination, several ways line is re-searched for out, and by institute Several ways line is stated to be pointed out in the way of the voice broadcast.
The present invention also provides a kind of route suggestion device, including:
Receiving module, the phonetic search instruction for receiving input;
First search module, for the destination in phonetic search instruction and the current location oriented, is searched Rope goes out to reach at least one route of the destination;
Reminding module, at least one route to be pointed out in the way of voice broadcast, so that user is carried out Selection.
In one embodiment, the reminding module includes:
Extracting sub-module, the route summary info for extracting each route at least one route;
Prompting submodule, for the route summary info of each route to be carried in the way of the voice broadcast Show, wherein, the route summary info of each route includes at least one of following information:
The route number of each route, the route running duration of each route, important index is high on each route The service area closest with the current location in target road section, each route in default index, each route The advantageous characteristic of congestion duration, each route.
In one embodiment, the extracting sub-module includes:
Determining unit, for being higher than in advance when the route summary info of each route includes important index on each route If during the target road section of index, according to the feature at least one section Zhong Ge sections of each route, determining each section Important index;
Screening unit, for filtering out important index from least one section of each route higher than the default finger Several sections as each route target road section, wherein, the feature in each section includes at least one of following:
Each section whether be fastlink, the construction-time in each section and current time time difference it is whether small In preset time is poor, each section whether be loop, each section whether be national highway, each section whether be provincial highway, Whether the running time needed for each section is more than or equal to preset duration.
In one embodiment, the reminding module includes:
Submodule is reported, for when the route summary info of each route includes multinomial information, according to default language Sound reports content format, and the multinomial information in the route summary info of each route is reported successively.
In one embodiment, described device also includes:
Navigation module, the voice selecting for any bar route in receiving at least one route instructs it Afterwards, navigated according to any bar route.
In one embodiment, described device also includes:
Second search module, for after being navigated according to any bar route, if any bar route is sent out Raw congestion, then according to the destination, re-search for out several ways line, and by the several ways line with the voice broadcast Mode pointed out.
The technical scheme provided by this disclosed embodiment can include the following benefits:
In the phonetic search instruction of reception, destination and current location in being instructed according to phonetic search, search Go out at least one route arrived at, and then at least one route is pointed out in the way of voice broadcast, so that User can be directly acquainted with the route searched out by voice on the basis of without look at display screen and go forward side by side walking along the street line options, And this route prompting mode obviously can bring convenience to user, route selection efficiency is improved, can also be avoided on selection road During line user security may be influenceed due to must look at the display screen where at least one route.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write Specifically noted structure is realized and obtained in book, claims and accompanying drawing.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, the reality with the present invention Applying example is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is a kind of flow chart of route reminding method according to an exemplary embodiment.
Fig. 2A is the flow chart of another route reminding method according to an exemplary embodiment.
Fig. 2 B are the flow charts of another route reminding method according to an exemplary embodiment.
Fig. 3 is the flow chart of another route reminding method according to an exemplary embodiment.
Fig. 4 is a kind of block diagram of route suggestion device according to an exemplary embodiment.
Fig. 5 is the block diagram of another route suggestion device according to an exemplary embodiment.
Fig. 6 is the block diagram of another route suggestion device according to an exemplary embodiment.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
In correlation technique, user is after input destination is to obtain route, and the route searched out can be shown on a display screen So that user is selected, but this route prompting mode in correlation technique may be less direct, it is possible to can to user with It is inconvenient to come, and especially when user is driving or on foot, this route prompting mode can cause user must bow to see aobvious Display screen could carry out route selection, and this obviously can bring very big inconvenience/puzzlement to user, or even bring security threat.
In order to solve the above-mentioned technical problem, the embodiment of the present disclosure provides a kind of route reminding method, and this method is applied to Plant in route attention program, system or device, its executive agent can be the terminal that mobile phone, vehicle etc. have navigation system, such as Shown in Fig. 1, the method comprising the steps of S101 to step S103, wherein,
In step S101, the phonetic search instruction of input is received;
In step s 102, destination and the current location oriented in being instructed according to phonetic search, search out arrival At least one route of destination;
The current location can be oriented by GPS (Global Positioning System global positioning systems) etc.;
In step s 103, at least one route is pointed out in the way of voice broadcast, so that user is selected.
In the phonetic search instruction of reception, destination and current location in being instructed according to phonetic search, search Go out at least one route arrived at, and then at least one route is pointed out in the way of voice broadcast, so that User can be directly acquainted with the route searched out by voice on the basis of without look at display screen and go forward side by side walking along the street line options, And this route prompting mode obviously can bring convenience to user, route selection efficiency is improved, can also be avoided on selection road During line user security may be influenceed due to must look at the display screen where at least one route.
In addition, while at least one route is pointed out in the way of voice broadcast, can also be by least one Route is shown by modes such as display screens, so that the prompting mode of abundant route.
As shown in Figure 2 A, in one embodiment, the step S103 shown in above-mentioned Fig. 1, i.e., by least one route with language The mode that sound is reported is pointed out, and can include step S201 and step S202:
In step s 201, the route summary info of each route at least one route is extracted;
In step S202, the route summary info of each route is pointed out in the way of voice broadcast, wherein, each road The route summary info of line is the brief description to each route, for making user understand the general of each route within the most short time Include, to improve the efficiency of selection of route, specifically, the route summary info of each route includes at least one of following information:
The route number of each route, the route running duration of each route, important index is higher than default index on each route (the clothes closest with current location in such as each route of the service area closest with current location in target road section, each route Be engaged in name, the nearest service area and the distance of the current location etc. in area), the congestion duration (congestion of each route of each route Duration can be average value of each route in the history congestion duration of some period), advantageous characteristic (each route of each route Advantageous characteristic refers to each route It is no that there is advantage, for example, when certain route is route running duration most short route, the advantageous characteristic of the route is route running Duration is most short, and when certain route is congestion time most short route, the advantageous characteristic of the route is most short for the congestion time, when certain road When line is number of transfer minimum route, the advantageous characteristic of the route is minimum for number of transfer).
When at least one route is pointed out in the way of voice broadcast, user is faster, more efficiently for convenience Route selection is carried out, the route summary info of each route at least one route can be automatically extracted, and then by the road of each route Line summary info is pointed out in the way of voice, so as to facilitate overview of the user to each route within the most short time to have a letter Singly, get information about, to shorten the selection time of each route, improve the efficiency of selection of each route.
Secondly, the route number of each route can be that (the most short principle of such as route, walking are at least former according to certain principle for system Then, minimum principle etc. is changed to) it is the numbering that at least one route searched out is set gradually.
In addition, when at least one route is pointed out in the way of speech play, can be according to above-mentioned route number Each route is reported successively, and user is when selecting route, can also be by the route of the selected route of phonetic entry Number to automatically select certain route.
As shown in Figure 2 B, in one embodiment, when the route summary info of each route includes important index on each route Higher than default index target road section when, the step S201 shown in above-mentioned Fig. 2A extracts each route at least one route Route summary info, can include:
In step S203, according to the feature at least one section Zhong Ge sections of each route, the important of each section is determined Index;
Wherein, the corresponding important index of the different characteristic in section can be different, and so, the important index in each section can be The weighted value of the important index of the different characteristic in each section, or if the feature in each section have priority point and it is determined that each During the important index in section, the forward feature of some priority ranks is only selected as the important index of reference, then each section Can also be the weighted value of the important index of the forward feature of priority rank in the different characteristic in each section, if for example, When determining the important index in each section, only forward this feature of fastlink of selection priority rank is used as reference, Ze Ge roads Section important index be equal to each section whether be fastlink important index, in another example, if it is determined that each section it is important During index, the forward loop of priority rank and the two features of national highway are only selected as the important index of reference, then each section Equal to each section whether be loop important index and each section whether be national highway important index sum.
In step S204, the section that important index is higher than default index is filtered out from least one section of each route As the target road section of each route, wherein, the feature in each section is including at least one of following:
When whether each section is time difference of fastlink, the construction-time in each section and current time whether to be less than default Between poor, each section whether whether for loop, each section whether be national highway, each section for the running time needed for provincial highway, each section Whether preset duration is more than or equal to.
After the important index in each section in calculating each route, in order that user quickly understands within the most short time The main information of each route, can filter out the section that important index is higher than default index from least one section of each route As the target road section of each route, so as to carry out voice broadcast using the target road section of each route as keynote message.
In one embodiment, when the route summary info of each route includes multinomial information, the step shown in above-mentioned Fig. 2A Rapid S202, will the route summary info of each route pointed out in the way of voice broadcast, can be performed as:
According to default voice broadcast content format, the multinomial information in the route summary info of each route is carried out successively Report.
When each route route summary info include multinomial information when, can according to default voice broadcast content format, Multinomial information in the route summary info of each route is reported successively according to certain rule, wherein, default voice is broadcast Report content format can indicate the playing sequence of every terms of information in multinomial information, reproduction time interval, the language table of every terms of information Up to rule etc..
As shown in figure 3, in one embodiment, the method shown in above-mentioned Fig. 1 may also include step S301:
In step S301, after the voice selecting instruction of any bar route in receiving at least one route, root Navigated according to any bar route.
, can be according to any bar after the voice selecting instruction of any bar route in receiving at least one route Route is navigated automatically, with according to any bar route running to the destination.
In one embodiment, after being navigated according to any bar route, method also includes:
If any bar route gets congestion, according to destination, several ways line is re-searched for out, and by several ways line Pointed out in the way of voice broadcast.
After being navigated according to any bar route, if automatic identification there occurs congestion to any bar route, Current location that can according to the destination and now, searches out the several ways line automatically again, and then by the several ways Line is pointed out in the way of voice broadcast, so that user can be straight by voice on the basis of without look at display screen The several ways line for understanding and re-searching for out is connect, and re-starts route selection, route change efficiency is improved.
In addition, before the several ways line is re-searched for, can also send and carry when any bar route gets congestion Show (such as voice message), to prompt the user to determine whether to re-search for route, and when receiving confirmation search instruction, search should Several ways line, consequently facilitating user quickly changes route.
As shown in figure 4, the present invention also provides a kind of route suggestion device, including:
Receiving module 401, is configured as receiving the phonetic search instruction of input;
First search module 402, the destination being configured as in being instructed according to phonetic search and the current location oriented, Search out at least one route arrived at;
Reminding module 403, is configured as being pointed out at least one route in the way of voice broadcast, so that user enters Row selection.
As shown in figure 5, in one embodiment, reminding module 403 can include extracting sub-module 4031 and prompting submodule Block 4032:
Extracting sub-module 4031, is configured as extracting the route summary info of each route at least one route;
Prompting submodule 4032, is configured as being carried the route summary info of each route in the way of voice broadcast Show, wherein, the route summary info of each route includes at least one of following information:
The route number of each route, the route running duration of each route, important index is higher than default index on each route The advantage spy of the service area closest with current location, the congestion duration of each route, each route in target road section, each route Levy.
In one embodiment, extracting sub-module 4032 can include determining that unit and screening unit:
Determining unit, is configured as the route summary info of each route including important index on each route higher than default finger During several target road section, according to the feature at least one section Zhong Ge sections of each route, the important index in each section is determined;
Screening unit, is configured as filtering out important index from least one section of each route higher than default index Section as each route target road section, wherein, the feature in each section includes at least one of following:
When whether each section is time difference of fastlink, the construction-time in each section and current time whether to be less than default Between poor, each section whether whether for loop, each section whether be national highway, each section for the running time needed for provincial highway, each section Whether preset duration is more than or equal to.
In one embodiment, reminding module 403 can include reporting submodule:
Submodule is reported, when being configured as the route summary info of each route including multinomial information, according to default language Sound reports content format, and the multinomial information in the route summary info of each route is reported successively.
As shown in fig. 6, in one embodiment, the device shown in above-mentioned Fig. 4 may also include navigation module 601:
Navigation module 601, is configured as the voice selecting instruction of any bar route in receiving at least one route Afterwards, navigated according to any bar route.
In one embodiment, said apparatus may also include the second search module:
Second search module, is configured as after being navigated according to any bar route, if any bar route is gathered around It is stifled, then according to destination, several ways line is re-searched for out, and several ways line is pointed out in the way of voice broadcast.
On the device in above-described embodiment, wherein unit performs the concrete mode of operation in relevant this method Embodiment in be described in detail, explanation will be not set forth in detail herein.
Finally, the route suggestion device in the present invention is applied to terminal device.For example, it may be mobile phone, computer, Digital broadcast terminal, messaging devices, game console, tablet device, Medical Devices, body-building equipment, personal digital assistant Deng.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program Product.Therefore, the present invention can be using the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware Apply the form of example.Moreover, the present invention can be used in one or more computers for wherein including computer usable program code The shape for the computer program product that usable storage medium is implemented on (including but is not limited to magnetic disk storage and optical memory etc.) Formula.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product Figure and/or block diagram are described.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which is produced, to be included referring to Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in individual square frame or multiple square frames.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprising including these changes and modification.

Claims (12)

1. a kind of route reminding method, it is characterised in that including:
Receive the phonetic search instruction of input;
Destination and the current location oriented in being instructed according to the phonetic search, search out the arrival destination extremely A few route;
At least one route is pointed out in the way of voice broadcast, so that user is selected.
2. according to the method described in claim 1, it is characterised in that
It is described to be pointed out at least one route in the way of voice broadcast, including:
Extract the route summary info of each route at least one route;
The route summary info of each route is pointed out in the way of the voice broadcast, wherein, each route Route summary info includes at least one of following information:
The route number of each route, the route running duration of each route, on each route important index higher than pre- If the service area closest with the current location, the congestion of each route in the target road section of index, each route The advantageous characteristic of duration, each route.
3. method according to claim 2, it is characterised in that
When the route summary info of each route includes the target road section that important index on each route is higher than default index When, the route summary info of each route in extraction at least one route, including:
According to the feature at least one section Zhong Ge sections of each route, the important index in each section is determined;
Section of the important index higher than the default index is filtered out from least one section of each route as described The target road section of each route, wherein, the feature in each section is including at least one of following:
Whether whether each section be the time difference of fastlink, the construction-time in each section and current time less than pre- If the time difference, each section whether be loop, each section whether be national highway, each section whether be provincial highway, it is described Whether the running time needed for each section is more than or equal to preset duration.
4. method according to claim 2, it is characterised in that
When each route route summary info include multinomial information when, the route summary info by each route with The mode of the voice broadcast is pointed out, including:
According to default voice broadcast content format, the multinomial information in the route summary info of each route is carried out successively Report.
5. method according to any one of claim 1 to 4, it is characterised in that methods described also includes:
After the voice selecting instruction of any bar route in receiving at least one route, according to any bar road Line is navigated.
6. method according to claim 5, it is characterised in that after being navigated according to any bar route, institute Stating method also includes:
If any bar route gets congestion, according to the destination, several ways line is re-searched for out, and if will be described Dry bar route is pointed out in the way of the voice broadcast.
7. a kind of route suggestion device, it is characterised in that including:
Receiving module, the phonetic search instruction for receiving input;
First search module, for the destination in phonetic search instruction and the current location oriented, is searched out Reach at least one route of the destination;
Reminding module, at least one route to be pointed out in the way of voice broadcast, so that user is selected.
8. device according to claim 7, it is characterised in that
The reminding module includes:
Extracting sub-module, the route summary info for extracting each route at least one route;
Prompting submodule, for the route summary info of each route to be pointed out in the way of the voice broadcast, its In, the route summary info of each route includes at least one of following information:
The route number of each route, the route running duration of each route, on each route important index higher than pre- If the service area closest with the current location, the congestion of each route in the target road section of index, each route The advantageous characteristic of duration, each route.
9. device according to claim 8, it is characterised in that
The extracting sub-module includes:
Determining unit, for referring to when the route summary info of each route includes important index on each route higher than default During several target road section, according to the feature at least one section Zhong Ge sections of each route, the weight in each section is determined Want index;
Screening unit, for filtering out important index from least one section of each route higher than the default index Section as each route target road section, wherein, the feature in each section includes at least one of following:
Whether whether each section be the time difference of fastlink, the construction-time in each section and current time less than pre- If the time difference, each section whether be loop, each section whether be national highway, each section whether be provincial highway, it is described Whether the running time needed for each section is more than or equal to preset duration.
10. device according to claim 8, it is characterised in that
The reminding module includes:
Submodule is reported, for when the route summary info of each route includes multinomial information, being broadcast according to default voice Content format is reported, the multinomial information in the route summary info of each route is reported successively.
11. the device according to any one of claim 7 to 10, it is characterised in that described device also includes:
Navigation module, after being instructed in the voice selecting of any bar route in receiving at least one route, root Navigated according to any bar route.
12. device according to claim 11, it is characterised in that described device also includes:
Second search module, for after being navigated according to any bar route, if any bar route is gathered around It is stifled, then according to the destination, several ways line is re-searched for out, and by the several ways line with the side of the voice broadcast Formula is pointed out.
CN201710158095.3A 2017-03-16 2017-03-16 A kind of route reminding method and device Pending CN107014390A (en)

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Cited By (3)

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Application publication date: 20170804