CN104848864A - Vehicle-mounted device - Google Patents
Vehicle-mounted device Download PDFInfo
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- CN104848864A CN104848864A CN201410049370.4A CN201410049370A CN104848864A CN 104848864 A CN104848864 A CN 104848864A CN 201410049370 A CN201410049370 A CN 201410049370A CN 104848864 A CN104848864 A CN 104848864A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3407—Route searching; Route guidance specially adapted for specific applications
- G01C21/3415—Dynamic re-routing, e.g. recalculating the route when the user deviates from calculated route or after detecting real-time traffic data or accidents
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Abstract
The invention provides a vehicle-mounted device, which relates to the technical field of a vehicle. The vehicle-mounted device ensures that a route navigation function can still be used when transportation data is updated. The vehicle-mounted device comprises: an information receiving part for receiving the updated data from an information center; a storing part for storing the transportation data; a treatment part for comparing the updated data with a searched predetermined driving route and judging whether the updated data relates to the predetermined driving route; if the updated data is unrelated to the predetermined driving route, storing updated transportation data in required time in the storing part; if the updated data relates to the predetermined driving route, searching a shortest route for achieving a first destination from routes unrelated to the updated data, and storing the transportation data corresponding to the shortest route in the storing part; and according to the transportation data stored in the storing part, performing updated route navigation in the required time. The vehicle-mounted device is applicable to the map navigation technology.
Description
Technical field
The present invention relates to automobile technical field, particularly relate to a kind of car-mounted device.
Background technology
In car-mounted device a kind of disclosed in Chinese patent literature CN200510117043.9X, navigating instrument receives the map update data from information center, and carries out map information update in real time.
But there are the following problems in the scheme of above-mentioned prior art: after car-mounted device receives map update data, need when upgrading cartographic information to stop route guidance function, driver cannot use route guidance function during this period.
Summary of the invention
Embodiments of the invention provide a kind of car-mounted device, guarantee that route navigation feature still can use when upgrading traffic data.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect, provides a kind of car-mounted device, comprising:
Receives information portion, for receiving the more new data from information center;
Storage part, for storing traffic data;
Handling part, for described more new data and the predetermined travel route searched for being compared, and described in judging, more whether new data is relevant with described predetermined travel route;
When described more new data and described predetermined travel route have nothing to do, the traffic data upgraded in required time is kept in described storage part;
When described more new data is relevant with described predetermined travel route, from the route had nothing to do with described more new data, retrieves the minimal path of arrival first destination again, and traffic data corresponding for described minimal path is kept in described storage part;
According to the traffic data that described storage part is preserved, carry out the route guidance in described renewal required time.
In conjunction with first aspect, in the first possible implementation of first aspect, described handling part specifically for:
According to the data volume of described more new data, calculate described renewal required time;
Combining road condition information and the real-time speed of a motor vehicle, determine the distance that in described renewal required time, vehicle can travel;
By traffic data storage corresponding for described distance in described storage part.
In conjunction with first aspect, in the implementation that the second of first aspect is possible, the described more new data from information center is differential data corresponding to place to be updated.
In conjunction with first aspect, in the third possible implementation of first aspect, described handling part specifically for:
Detect described vehicle whether to travel;
When detecting that described vehicle travels, described more new data and the predetermined travel route searched for are compared, and described in judging, more whether new data is relevant with described predetermined travel route;
When detecting described vehicle parking, start utilize described in more new data upgrade.
In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation of first aspect, described handling part also for:
Upgrade when not completing when described vehicle is in and starts under dead ship condition upgrade and start to travel, whether the data more not completing part described in determining in new data are relevant with described predetermined travel route;
When described do not complete part data relevant with described predetermined travel route, generation have the signal of renewal for alerting driver traffic data on described predetermined travel route.
After receiving map update data compared to car-mounted device in prior art, need when upgrading cartographic information to stop route guidance function, cause driver during this period cannot use route guidance function, according to the car-mounted device that the embodiment of the present invention provides, owing to needing more under news at traffic data, by backing up or retrieving traffic data again, and the traffic data route guidance as an alternative using backup or retrieve again in renewal required time, therefore, it is possible to guarantee that route navigation feature still can use when upgrading traffic data.
Accompanying drawing explanation
The structural representation of the car-mounted device that Fig. 1 provides for the embodiment of the present invention one;
The processing flow chart of the car-mounted device that Fig. 2 provides for the embodiment of the present invention one.
Embodiment
Be clearly and completely described below in conjunction with the technical scheme of accompanying drawing to the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
In an embodiment of the present invention, car-mounted device is applied to the more new data received from information center, and uses the occasion that more new data upgrades traffic data, and this traffic data is the data for providing navigation for vehicle traveling that car-mounted device prestores.More new data packets draws together map update data, voice more new data etc.Car-mounted device can be such as navigating instrument.
Fig. 1 is the structural representation of the car-mounted device that the embodiment of the present invention one provides.As shown in Figure 1, car-mounted device 10 comprises:
Receives information portion 11, for receiving the more new data from information center;
Storage part 12, for storing traffic data;
Handling part 13, for more new data and the predetermined travel route searched for being compared, and judges that more whether new data is relevant with predetermined travel route; When more new data and predetermined travel route have nothing to do, the traffic data upgraded in required time is kept in storage part 12; When more new data is relevant with predetermined travel route, from the route that more new data has nothing to do retrieve the minimal path of arrival first destination again, and traffic data corresponding for minimal path is kept in storage part 12; According to the traffic data that storage part 12 is preserved, carry out the route guidance in described renewal required time.
Particularly, after car-mounted device 10 starts, need more under news at traffic data, such as, map datum for navigating has problem, or has new map datum, and receives information portion 11 receives the more new data from information center by cloud system.
Alternatively, the more new data from information center that receives information portion 11 receives is differential data corresponding to place to be updated.When the traffic data that storage part 12 prestores needs to upgrade, may not be need to upgrade whole traffic data, and just need to upgrade part traffic data corresponding to place to be updated.Therefore, receives information portion 11, by receiving differential data corresponding to place to be updated, can save the expense that the process of storage part 12 Storage and Processing portion 13 calculates, and can complete renewal quickly.
Then the work of handling part 13 is described.
Receive more after new data in receives information portion 11, in order to determine more whether new data has impact to Present navigation, more new data compares with the predetermined travel route searched for by handling part 13, and judges that more whether new data is relevant with predetermined travel route.Predetermined travel route refer to handling part 13 searched in advance, route position when to receive more new data from receives information portion 11 residing for vehicle to the final destination that vehicle goes to.More new data is relevant with predetermined travel route refers on predetermined travel route, there are the to be updated data corresponding with more new data.
Below, in two kinds of situation more new data is had nothing to do with predetermined travel route and relevant when handling part 13 work be described.
The first situation: when more new data and predetermined travel route irrelevant, handling part 13 can according to the data volume of more new data calculate use more new data traffic data upgraded required for time, namely calculate and upgrade required time.
Determining to upgrade after required time, handling part 13 can be determined on predetermined travel route and upgrade the distance that in required time, vehicle can travel, and traffic data corresponding to the distance that can be travelled by vehicle is kept in storage part 12.Owing to using more new data to carry out reproducting periods, traffic data corresponding to this original segment distance cannot be used to carry out route guidance, therefore, handling part 13, by being backed up in storage part 12 by traffic data corresponding for this segment distance, can realize the route guidance in renewal required time.
Then how handling part 13 is determined that upgrading the distance that in required time, vehicle can travel is described.In vehicle travel process, the data collected, by gathering real-time traffic information and the real-time speed of a motor vehicle, are added up by handling part 13, calculate the average velocity of vehicle.Wherein, the vehicle flowrate that traffic information can comprise, the stand-by period etc. of traffic lights, real-time traffic information is conducive to the average velocity calibrating vehicle.Preferably, when calculating the average velocity of vehicle, route segments also can be estimated on Mei Duan road, travel the required time, so, the degree of accuracy of the average velocity of vehicle on whole piece route can be improved.Then, handling part 13 according to the average velocity of vehicle, can determine the distance that in described renewal required time, vehicle can travel.In addition, in vehicle travel process, handling part 13 can calculate the time that vehicle program arrives final destination, and informs user by voice signal.
The second situation: when more new data is relevant with predetermined travel route, because the traffic data that predetermined travel route is corresponding has to be updated, therefore, handling part 13 cannot according to predetermined travel route for vehicle provides route guidance.As an alternative, handling part 13 retrieves the minimal path of arrival first destination again from the route (requirement can not include the section of traffic hazard or traffic control) irrelevant with above-mentioned more new data, and traffic data corresponding for minimal path is kept in storage part, and according to this minimal path for vehicle provides route guidance.
It should be noted that, it is final destination that handling part 13 can arrange the first destination, the i.e. destination of predetermined travel route, also can arrange the first destination be still have apart from final destination the position of a segment distance, this position be upgrade that vehicle in required time can drive to farthest and the position nearest apart from final destination.When implementing, can obtain the stroke arriving final destination is the shortest determines how to arrange the first destination by comparing which kind of the first destination of setting.
Still have the position of a segment distance to be described apart from final destination at this to arrange the first destination.The distance that vehicle can travel in above-mentioned renewal required time is generally less than the distance of predetermined travel route, and namely vehicle generally can not travel and arrive final destination in above-mentioned renewal required time.Be still have the position of a segment distance apart from final destination by arranging the first destination, on the one hand, likely obtaining than arranging the first destination is the shorter travel route in final destination; On the other hand, after Data Update completes, can stretch line before reaching the ultimate destination utilize the traffic data after upgrading to navigate, so likely obtain shorter travel route (such as having increased road newly) further.
In data updating process, handling part 13, according to the minimal path retrieved again in the traffic data backed up in the first above-mentioned situation or the second situation, carries out the route guidance in described renewal required time.Particularly, handling part 13 control data can upgrade and perform on backstage, while transfer the traffic data that storage part 12 preserves to carry out route guidance on the display screen of car-mounted device.
Alternatively, the map that handling part 13 also can amplify in the display screen display of car-mounted device, and display turns to for reminding user or the arrow of selection schemer.
When Data Update completes, vehicle also may not reach final destination, handling part 13 can judge whether the route from position when having upgraded to final destination is updated again, if this section of route is not updated, then handling part 13 does not need to search for again; If this route of section is updated, then handling part 13 carries out difference to this section of route before and after upgrading.According to the result of difference, if the data of this section of route are without change, such as only more variation route surrounding buildings title etc., then handling part 13 is not searched for again; If the data of this section of route have change (may have updated route more efficiently), then handling part 13 carries out automatic search, and selects according to distance and real-time road the route arriving shortest time.
Can find out from above, after receiving map update data compared to car-mounted device in prior art, need when upgrading cartographic information to stop route guidance function, cause driver during this period cannot use route guidance function, according to the car-mounted device that the embodiment of the present invention one provides, owing to needing more under news at traffic data, by backing up or retrieving traffic data again, and the traffic data route guidance as an alternative using backup or retrieve again in renewal required time, therefore, can guarantee that route navigation feature still can use when upgrading traffic data.
In a variant embodiment of embodiment one, handling part 13 specifically for:
Detect vehicle traveling whether to travel;
When detecting that vehicle travels, above-mentioned more new data and the predetermined travel route searched for being compared, and judges that whether above-mentioned more new data is relevant with predetermined travel route;
When detecting vehicle parking, start to utilize more new data to upgrade.
Particularly, judge more new data whether relevant with predetermined travel route before, handling part 13 can first detect vehicle travel whether travel.
When detecting vehicle parking, especially when long-time parking is carried out in the places such as stop, handling part 13 does not need to judge that more whether new data is relevant with predetermined travel route, do not need the operation carried out above-mentioned backup or retrieve again, but directly start to utilize more new data to upgrade yet.Compared to judging that more whether new data is relevant with predetermined travel route, it is less that detection vehicle travels the computing overhead whether travelled.
When detecting that vehicle travels, more new data and the predetermined travel route searched for compare by handling part 13 again, and judge that more whether new data is relevant with predetermined travel route, specifically can refer to above-mentioned explanation.
When carrying out renewal Data Update, handling part 13 also can be used for: upgrade when not completing when starting upgrade and start to travel under vehicle is in dead ship condition, determines that whether the data not completing part in more new data are relevant with predetermined travel route.Such as, when of short duration parkings such as wait for traffic lamps, handling part 13 uses more new data to start to upgrade, and when vehicle starts to travel, renewal may not yet complete.Now, handling part 13 can determine that whether the data not completing part in more new data are relevant with predetermined travel route.In addition, when when vehicle starts to travel, renewal completes, the data after handling part 13 can utilize renewal are navigated.
When the data not completing part are relevant with predetermined travel route, handling part 13 can produce has the signal of renewal for alerting driver traffic data on predetermined travel route.And, as above-mentioned the second situation describes, handling part 13 can retrieve the minimal path of arrival first destination again, and this minimal path has nothing to do with the data not completing part, and according to this minimal path for vehicle provides route guidance.
In addition, when the data and predetermined travel route that do not complete part are irrelevant, the data after handling part 13 can utilize renewal are navigated.Particularly, as the first situation above-mentioned describes, handling part 13 can utilize the traffic data do not completed in renewal required time corresponding to data partly to navigate.Because more new data carries out completing a part, this traffic data may comprise the data upgraded, and navigates therefore, it is possible to utilization makes full use of more new data.
The processing flow chart of the car-mounted device that Fig. 2 provides for the embodiment of the present invention two, an embodiment of the corresponding car-mounted device of this processing flow chart.Wherein, the every part in processing flow chart all can find corresponding explanation in above-described embodiment one, does not repeat them here.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (5)
1. a car-mounted device, is characterized in that, comprising:
Receives information portion, for receiving the more new data from information center;
Storage part, for storing traffic data;
Handling part, for described more new data and the predetermined travel route searched for being compared, and described in judging, more whether new data is relevant with described predetermined travel route;
When described more new data and described predetermined travel route have nothing to do, the traffic data upgraded in required time is kept in described storage part;
When described more new data is relevant with described predetermined travel route, from the route had nothing to do with described more new data, retrieves the minimal path of arrival first destination again, and traffic data corresponding for described minimal path is kept in described storage part;
According to the traffic data that described storage part is preserved, carry out the route guidance in described renewal required time.
2. car-mounted device according to claim 1, is characterized in that,
Described handling part specifically for:
According to the data volume of described more new data, calculate described renewal required time;
Combining road condition information and the real-time speed of a motor vehicle, determine the distance that in described renewal required time, vehicle can travel;
By traffic data storage corresponding for described distance in described storage part.
3. car-mounted device according to claim 1, is characterized in that,
The described more new data from information center is differential data corresponding to place to be updated.
4. car-mounted device according to claim 1, is characterized in that,
Described handling part specifically for:
Detect described vehicle whether to travel;
When detecting that described vehicle travels, described more new data and the predetermined travel route searched for are compared, and described in judging, more whether new data is relevant with described predetermined travel route;
When detecting described vehicle parking, start utilize described in more new data upgrade.
5. car-mounted device according to claim 4, is characterized in that,
Described handling part also for:
Upgrade when not completing when described vehicle is in and starts under dead ship condition upgrade and start to travel, whether the data more not completing part described in determining in new data are relevant with described predetermined travel route;
When described do not complete part data relevant with described predetermined travel route, generation have the signal of renewal for alerting driver traffic data on described predetermined travel route.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410049370.4A CN104848864A (en) | 2014-02-13 | 2014-02-13 | Vehicle-mounted device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410049370.4A CN104848864A (en) | 2014-02-13 | 2014-02-13 | Vehicle-mounted device |
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| CN104848864A true CN104848864A (en) | 2015-08-19 |
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| CN201410049370.4A Pending CN104848864A (en) | 2014-02-13 | 2014-02-13 | Vehicle-mounted device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106251673A (en) * | 2016-07-26 | 2016-12-21 | 合肥指南针电子科技有限责任公司 | A kind of anti-congested traffic management method |
| CN107315600A (en) * | 2016-04-27 | 2017-11-03 | 株式会社日立制作所 | The method and apparatus remotely updated to the software in car-mounted terminal |
-
2014
- 2014-02-13 CN CN201410049370.4A patent/CN104848864A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107315600A (en) * | 2016-04-27 | 2017-11-03 | 株式会社日立制作所 | The method and apparatus remotely updated to the software in car-mounted terminal |
| CN106251673A (en) * | 2016-07-26 | 2016-12-21 | 合肥指南针电子科技有限责任公司 | A kind of anti-congested traffic management method |
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Application publication date: 20150819 |