CN102384751B - Method for realizing voice navigation of navigation terminal and navigation terminal - Google Patents
Method for realizing voice navigation of navigation terminal and navigation terminal Download PDFInfo
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Abstract
The invention provides a method for realizing voice navigation of a navigation terminal and the navigation terminal, which relate to the field of navigation, and aim at solving the technical problems that in the prior art, voice prompt is too late in voice navigation. The method comprises the steps of obtaining a navigation path of the navigation terminal according to the current position of the navigation terminal and the target position input by a user, inquiring a location point needing voice prompt in the navigation path by the correspondence between a preset location point and the content of the voice prompt, estimating the predicted moving distance of the navigation terminal from the beginning to the finishing of playing of the content of the voice prompt of the location point, and computing a first distance between the navigation terminal and the location point and judging whether the first distance is equal to the sum of the preset moving distance and preset lead which is more than or equal to zero. If so, the content of the voice prompt corresponding to the location point is played. The method is applicable to the voice prompt of navigation systems.
Description
Technical field
The present invention relates to navigation field, refer to a kind of method and navigation terminal of Voice Navigation of navigation terminal especially.
Background technology
Along with going deep into of GPS (GPS) civil nature, people use navigation terminal more and more.Because it brings very large convenience to the trip of people, therefore become a requisite part in life gradually.Along with to the attention rate of navigation terminal and usage degree more and more higher, people have not only been satisfied with the basic navigation feature that navigation terminal provides, but wish its navigation Service that can provide accuracy, more hommization more.
Sound prompt function be navigation terminal the ingredient of navigation feature is provided, singularity due to navigation terminal: will be absorbed in driver's startup procedure and drive and note surface conditions, because of but can not go to see that navigation terminal picture is pointed out to obtain picture, therefore, sound prompt function just seems particularly important, particularly in accuracy and hommization.
Sound prompt function is used for bring the bifurcation mouth of doubt to driver or need emphasis to remind driver the place noted, driver front is such as reminded whether to turn left or point out front which place to drive towards, so near the bifurcation mouth of road, high speed parting, corner or destination time, how to carry out accurately and the prompting of hommization very necessary.
In prior art, if voice message content is long, after there is voice reminder, driver does not also have enough time to react, and has just sailed out of the situation of parting, can not well for user provides Voice Navigation service.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method and navigation terminal of voice message of navigation terminal, when navigating, gives user certain reaction time, better for user provides Voice Navigation service after voice message terminates.
For solving the problems of the technologies described above, embodiments of the invention provide technical scheme as follows:
On the one hand, a kind of method of Voice Navigation of navigation terminal is provided, comprises:
Step one, according to the current location of navigation terminal and the target location of user's input, obtains the guidance path of navigation terminal;
Step 2, according to the location point preset and the corresponding relation of voice message content, inquires about the location point that will carry out voice message on described guidance path;
Step 3, at the end of the voice message content estimating described location point is played from start to broadcasting, the expectation displacement of described navigation terminal;
Step 4, calculates the first distance between described navigation terminal and described location point in real time, and judges whether described first distance equals between described expectation displacement and intentional lead and value, and described lead is greater than or equal to 0;
Step 5, if judged result is yes, then plays the voice message content that described location point is corresponding.
Described step 3 comprises:
Step a, according to the corresponding relation between the location point preset and voice message content, obtains the voice message content of described location point;
Step b, according to described voice message content, calculates the broadcasting elapsed time of described voice message content;
Step c, obtains the estimating speed of described navigation terminal;
Steps d, according to the broadcasting elapsed time of described estimating speed and described voice message content, at the end of the voice message content estimating described location point is played from start to broadcasting, the expectation displacement of described navigation terminal.
Optionally, described estimating speed is: the present speed of described navigation terminal or user preset speed.
Optionally, described estimating speed is: the maximal rate of the affiliated road permission of described location point or minimum speed;
Described step c is specially:
According to the corresponding relation between the road pre-set and category of roads table, obtain the category of roads of the affiliated road of described location point;
Maximum or the minimum permissible velocity value corresponding according to the category of roads preset, obtains the maximum or minimum permissible velocity value that the affiliated road of described location point is corresponding.
The broadcasting elapsed time of described voice message content comprises: the time reporting each word needs in voice message content and the dead time of playing between each word.
On the other hand, a kind of navigation terminal is provided, comprises:
Path planning module, for according to the current location of navigation terminal and the target location of user's input, obtains the guidance path of navigation terminal;
Location point enquiry module, for the corresponding relation according to the location point preset and voice message content, inquires about the location point on described guidance path;
Voice message distance threshold values computing module, at the end of the voice message content for estimating described location point is played from start to broadcasting, the expectation displacement of described navigation terminal;
Distance Judgment module, for calculating the first distance between navigation terminal and described location point in real time, and judge whether described first distance equals between described expectation displacement and intentional lead and value, and described lead is greater than or equal to 0, generates judged result;
Voice output module, when described judged result is for being, then plays the voice message content of described location point.
Described navigation terminal, also comprises:
Voice calling module, for according to the corresponding relation between the location point preset and voice message content, obtains the voice message content of described location point;
Voice used time computing module, for according to described voice message content, calculates the broadcasting elapsed time of described voice message content;
Speed acquiring module, for obtaining the estimating speed of described navigation terminal;
Described voice message distance threshold values computing module is specially, according to the broadcasting elapsed time of described estimating speed and described voice message content, at the end of the voice message content estimating described location point is played from start to broadcasting, the expectation displacement of described navigation terminal.
Optionally, described estimating speed is: the present speed of described navigation terminal or user preset speed.
Optionally, described estimating speed is: the maximal rate of the affiliated road permission of described location point or minimum speed;
Described navigation terminal also comprises: category of roads acquisition module, for according to the corresponding relation between the road pre-set and category of roads table, obtains the category of roads of the affiliated road of described location point;
Described speed acquiring module is specially, and the maximum or minimum permissible velocity value corresponding according to the category of roads preset, obtains the maximum or minimum permissible velocity value that the affiliated road of described location point is corresponding.
The broadcasting elapsed time of described voice message content comprises: the time reporting each word needs in voice message content and the dead time of playing between each word.
Embodiments of the invention have following beneficial effect:
In such scheme, at the end of the voice message content estimating described location point is played from start to broadcasting, the expectation displacement of described navigation terminal, thus select to carry out Voice Navigation to user in place, better for user provides Voice Navigation service, described navigation terminal is made to start to play the voice message content needing the location point of voice message corresponding in a position, and after voice message content finishes, the surge time that navigation terminal is certain in addition apart from described location point, to the reaction time that user is certain.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the method for the Voice Navigation of navigation terminal of the present invention;
Fig. 2 is the structural representation of navigation terminal of the present invention;
Fig. 3 is the structural representation of the application scenarios of navigation terminal of the present invention;
Fig. 4 is the schematic flow sheet of the application scenarios of the method for the Voice Navigation of navigation terminal of the present invention.
Embodiment
For embodiments of the invention will be solved technical matters, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
As shown in Figure 1, be the method for the Voice Navigation of a kind of navigation terminal of the present invention, comprise:
Step 11, according to the current location of navigation terminal and the target location of user's input, obtains the guidance path of navigation terminal;
Step 12, according to the location point preset and the corresponding relation of voice message content, inquires about the location point that will carry out voice message on described guidance path;
Step 13, at the end of the voice message content estimating described location point is played from start to broadcasting, the expectation displacement of described navigation terminal;
Step 14, calculates the first distance between described navigation terminal and described location point in real time, and judges whether described first distance equals between described expectation displacement and intentional lead and value, and described lead is greater than or equal to 0;
Step 15, if judged result is yes, then plays the voice message content that described location point is corresponding.
Described step 13 comprises:
Step a, according to the corresponding relation between the location point preset and voice message content, obtains the voice message content of described location point;
Step b, according to described voice message content, calculates the broadcasting elapsed time of described voice message content;
Step c, obtains the estimating speed of described navigation terminal;
Steps d, according to the broadcasting elapsed time of described estimating speed and described voice message content, at the end of the voice message content estimating described location point is played from start to broadcasting, the expectation displacement of described navigation terminal.
Optionally, described estimating speed is: the present speed of described navigation terminal or user preset speed.In the present invention, the present speed of terminal can be obtained by reading speed panel board.
Optionally, described estimating speed is: the maximal rate of the affiliated road permission of described location point or minimum speed; Accordingly, described step c is specially:
According to the corresponding relation between the road pre-set and category of roads table, obtain the category of roads of the affiliated road of described location point;
Maximum or the minimum permissible velocity value corresponding according to the category of roads preset, obtains the maximum or minimum permissible velocity value that the affiliated road of described location point is corresponding.
The broadcasting elapsed time of described voice message content comprises: the time reporting each word needs in voice message content and the dead time of playing between each word.
As shown in Figure 2, be a kind of navigation terminal of the present invention, comprise:
Path planning module 21, for according to the current location of navigation terminal and the target location of user's input, obtains the guidance path of navigation terminal;
Location point enquiry module 22, for the corresponding relation according to the location point preset and voice message content, inquires about the location point on described guidance path;
Voice message distance threshold values computing module 23, at the end of the voice message content for estimating described location point is played from start to broadcasting, the expectation displacement of described navigation terminal;
Distance Judgment module 24, for calculating the first distance between navigation terminal and described location point in real time, and judge whether described first distance equals between described expectation displacement and intentional lead and value, and described lead is greater than or equal to 0, generates judged result;
Voice output module 25, when described judged result is for being, then plays the voice message content of described location point.
Described navigation terminal, also comprises:
Voice calling module 26, for according to the corresponding relation between the location point preset and voice message content, obtains the voice message content of described location point;
Voice used time computing module 27, for according to described voice message content, calculates the broadcasting elapsed time of described voice message content;
Speed acquiring module 28, for obtaining the estimating speed of described navigation terminal;
Described voice message distance threshold values computing module 23 is specially, according to the broadcasting elapsed time of described estimating speed and described voice message content, at the end of the voice message content estimating described location point is played from start to broadcasting, the expectation displacement of described navigation terminal.
Optionally, described estimating speed is: the present speed of described navigation terminal or user preset speed.
Optionally, described estimating speed is: the maximal rate of the affiliated road permission of described location point or minimum speed;
Described navigation terminal also comprises: category of roads acquisition module 29, for according to the corresponding relation between the road pre-set and category of roads table, obtains the category of roads of the affiliated road of described location point;
Described speed acquiring module 28 is specially, and the maximum or minimum permissible velocity value corresponding according to the category of roads preset, obtains the maximum or minimum permissible velocity value that the affiliated road of described location point is corresponding.
The broadcasting elapsed time of described voice message content comprises: the time reporting each word needs in voice message content and the dead time of playing between each word.
The present invention, in order to solve existing navigation terminal when voice message, does not consider the relation between the report time that voice itself are required and speed, thus has influence on the problem of navigation feature.The present invention is at location points such as road partings, voice message distance threshold values is obtained according to the velocity limits of road or the setting speed of user and the time needed for voice broadcast, carried out the output of voice according to this threshold values by navigation terminal, thus for diverse location point, different voice message contents, more humane and carry out more accurately voice broadcast and voice guide navigation.The present invention considers the surge time of the time needed for voice broadcast, each grade terrain vehicle line speed and required voice message thereof, thus voice can the driver that is supplied to that is more accurate, hommization be used.
The present invention not only considers the difference of the play content of different location points and causes playing the difference of time consumed, and consider the difference of the travel speed of different location points, thus determine different voice message distance thresholds flexibly, be better user's service, the time that can solve voice message during Voice Navigation in prior art too early or excessively late problem.
As shown in Figure 3, be an application scenarios of navigation terminal of the present invention, comprise:
Load module 101, for inputting information, so that user's inquiry or setting destination;
GPS locating module 102, for positioning the position of navigation terminal;
Path planning module 103, for planning travel route to driver, has multiple route to select for driver;
Location point enquiry module 104, for judging whether front has the location point needing voice message;
Voice message distance threshold values computing module 112, for according to each grade road speeds extreme value and the time reported needed for voice, obtain voice message distance threshold values, described voice message distance threshold is at the end of the voice message content of the described location point estimated is played from start to broadcasting, the expectation displacement of described navigation terminal;
Distance Judgment module 105, for judging whether the distance of navigation terminal current location and location point has arrived voice message distance threshold values;
Voice output module 111, for the output of voice, prompting driver front how to be driven or front will arrive where.
Navigation terminal of the present invention also comprises:
Speech database 108, for storing navigation speech, uses for voice calling module 107 and voice output module 111;
Voice calling module 107, for calling voice from speech database 108, uses to give voice used time computing module;
Voice used time computing module 106, for calculating the time reporting voice message; By voice calling module 107 from voice message content corresponding to speech database 108 calling station point, calculate the broadcasting elapsed time that voice message content needs:
The broadcasting elapsed time needed for voice suggestion content is guided to be made up of two parts: one for reporting the required time of voice own; Two is the pause between voice and voice, and pause can allow driver sound more comfortable.
Such as, sounding more comfortable word speed is: 300 words per minute clock=5 word/seconds, thus obtains table 1:
| Project | Word speed (millisecond/word) |
| Voice | 20 |
| Pause | 20 |
Below for a suggestion voice suggestion content: " 200 meters, front bend to right Expressway between Beijing and Tianjin highway aspect ".Space wherein represents pause.Voice number of words is 17, and pause is 3, therefore reports these voice and need 400 milliseconds, namely 4 seconds.
Category of roads acquisition module 109, for according to the corresponding relation between the road pre-set and category of roads, obtains the category of roads of location point place road, thus calls each grade road speeds storehouse 110.
Each grade road speeds storehouse 110, for storing each grade road maximal rate corresponding in regulation and minimum speed restriction, uses, as table 2 for category of roads acquisition module 109:
| Class letter | Velocity limits (Km/h) | Velocity limits (m/s) |
| Super expressway | 120 | 33.3 |
| City free way | 90 | 25 |
| The Ordinary Rd of own centre line | 60 | 16.7 |
| The Ordinary Rd of non-stop layer line | 30 | 8.3 |
As shown in Figure 4, for an application scenarios of the method for the Voice Navigation of navigation terminal of the present invention, in this application scenarios, estimating speed is the maximal rate that location point place road is corresponding in regulation, described location point is road to be arrived, and intentional lead is 0.Described intentional lead also can for being greater than 0 scope being less than 100 meters, and the present invention is not limited thereto, user can be arranged flexibly according to actual conditions.
Described method comprises the steps:
Step 201, receives gps signal by GPS locating module 102, and the position of positioning navigation terminal;
Step 202, load module 101 receives the destination of user's input;
Step 203, path planning module 103 is according to navigation terminal position and destination, and planning guidance path also shows;
Step 204, navigation terminal starts navigation, and user drives;
Step 205, difference judge module 104 judges whether front exists the location point needing to carry out voice message;
Step 206, judges the grade of location point place road;
Step 207, the maximal rate that calling station point place road is corresponding in regulation;
Step 208, the voice of calling station point;
Step 209, the time that the voice broadcast calculating location point needs;
Step 210, the voice broadcast required time of the location point that the velocity limits of the present road that integrating step 207 obtains and step 209 obtain, calculates voice message distance threshold values;
Step 211, calculates the distance of current vehicle position apart from location point by Distance Judgment module;
Step 212, judges that the distance of navigation terminal distance and position point is equal with to voice message distance threshold values;
Step 213, if judged result is yes, then exports voice messaging, namely reports voice message.
Described embodiment of the method is corresponding with described device embodiment, the description of relevant portion in the part comparable device embodiment do not described in detail in embodiment of the method, the description of relevant portion in the part reference method embodiment do not described in detail in device embodiment.
One of ordinary skill in the art will appreciate that, the all or part of step realized in above-described embodiment method is that the hardware that can carry out instruction relevant by program has come, described program can be stored in a computer read/write memory medium, this program is when performing, comprise the step as above-mentioned embodiment of the method, described storage medium, as: magnetic disc, CD, read-only store-memory body (Read-Only Memory, or random store-memory body (Random Access Memory, RAM) etc. ROM).
In each embodiment of the method for the present invention; the sequence number of described each step can not be used for the sequencing limiting each step; for those of ordinary skill in the art, under the prerequisite not paying creative work, the priority of each step is changed also within protection scope of the present invention.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. a method for the Voice Navigation of navigation terminal, is characterized in that, comprising:
Step one, according to the current location of navigation terminal and the target location of user's input, obtains the guidance path of navigation terminal;
Step 2, according to the location point preset and the corresponding relation of voice message content, inquires about the location point that will carry out voice message on described guidance path;
Step 3, at the end of the voice message content estimating described location point is played from start to broadcasting, the expectation displacement of described navigation terminal;
Step 4, calculates the first distance between described navigation terminal and described location point in real time, and judges whether described first distance equals between described expectation displacement and intentional lead and value, and described lead is greater than or equal to 0;
Step 5, if judged result is yes, then plays the voice message content that described location point is corresponding; Described step 3 comprises:
Step a, according to the corresponding relation between the location point preset and voice message content, obtains the voice message content of described location point;
Step b, according to described voice message content, calculates the broadcasting elapsed time of described voice message content;
Step c, obtains the estimating speed of described navigation terminal;
Steps d, according to the broadcasting elapsed time of described estimating speed and described voice message content, at the end of the voice message content estimating described location point is played from start to broadcasting, the expectation displacement of described navigation terminal;
Described estimating speed is: the maximal rate of the affiliated road permission of described location point;
Described step c is specially:
According to the corresponding relation between the road pre-set and category of roads table, obtain the category of roads of the affiliated road of described location point;
The maximum permission speed value corresponding according to the category of roads preset, obtain the maximum permission speed value that the affiliated road of described location point is corresponding, the broadcasting elapsed time of described voice message content comprises: the time reporting each word needs in voice message content and the dead time of playing between each word.
2. a navigation terminal, is characterized in that, comprising:
Path planning module, for according to the current location of navigation terminal and the target location of user's input, obtains the guidance path of navigation terminal;
Location point enquiry module, for the corresponding relation according to the location point preset and voice message content, inquires about the location point on described guidance path;
Voice message distance threshold values computing module, at the end of the voice message content for estimating described location point is played from start to broadcasting, the expectation displacement of described navigation terminal;
Distance Judgment module, for calculating the first distance between navigation terminal and described location point in real time, and judge whether described first distance equals between described expectation displacement and intentional lead and value, and described lead is greater than or equal to 0, generates judged result;
Voice output module, when described judged result is for being, then plays the voice message content of described location point; Also comprise:
Voice calling module, for according to the corresponding relation between the location point preset and voice message content, obtains the voice message content of described location point;
Voice used time computing module, for according to described voice message content, calculates the broadcasting elapsed time of described voice message content;
Speed acquiring module, for obtaining the estimating speed of described navigation terminal;
Described voice message distance threshold values computing module is specially, according to the broadcasting elapsed time of described estimating speed and described voice message content, at the end of the voice message content estimating described location point is played from start to broadcasting, the expectation displacement of described navigation terminal;
Described estimating speed is: the maximal rate of the affiliated road permission of described location point;
Described navigation terminal also comprises: category of roads acquisition module, for according to the corresponding relation between the road pre-set and category of roads table, obtains the category of roads of the affiliated road of described location point;
Described speed acquiring module is specially, and the maximum permission speed value corresponding according to the category of roads preset, obtains the maximum permission speed value that the affiliated road of described location point is corresponding,
The broadcasting elapsed time of described voice message content comprises: the time reporting each word needs in voice message content and the dead time of playing between each word.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103076021A (en) * | 2013-01-10 | 2013-05-01 | 惠州Tcl移动通信有限公司 | Treatment method of hint information during navigation of navigation equipment and navigation equipment |
| CN103837152A (en) * | 2014-01-03 | 2014-06-04 | 观致汽车有限公司 | Intelligent turning prompting system and method for driving of vehicle |
| CN104697518A (en) * | 2015-03-31 | 2015-06-10 | 百度在线网络技术（北京）有限公司 | Method and device for playing guidance voice in navigation process |
| CN113029186A (en) * | 2015-08-12 | 2021-06-25 | 阿里巴巴（中国）有限公司 | Navigation method and device |
| CN107525517B (en) * | 2016-10-09 | 2019-01-08 | 腾讯科技（深圳）有限公司 | voice broadcast method and device |
| CN107727092A (en) * | 2017-09-08 | 2018-02-23 | 阿里巴巴集团控股有限公司 | Information prompting method, device and electronic equipment |
| CN107894238B (en) * | 2017-12-18 | 2020-01-10 | 奇瑞汽车股份有限公司 | Vehicle-mounted navigation method and device |
| CN109990781B (en) * | 2017-12-29 | 2021-11-02 | 北京搜狗科技发展有限公司 | Navigation processing method and device for navigation processing |
| CN110017848B (en) * | 2019-04-11 | 2020-09-29 | 北京三快在线科技有限公司 | Voice navigation method and device, electronic equipment and storage medium |
| CN113031588B (en) * | 2021-02-02 | 2023-11-07 | 广东柔乐电器有限公司 | Mall robot navigation system |
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