CN105404882A - Anti-tracking method and device based on navigation system - Google Patents
Anti-tracking method and device based on navigation system Download PDFInfo
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- CN105404882A CN105404882A CN201511010537.7A CN201511010537A CN105404882A CN 105404882 A CN105404882 A CN 105404882A CN 201511010537 A CN201511010537 A CN 201511010537A CN 105404882 A CN105404882 A CN 105404882A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/56—Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/56—Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
- G06V20/58—Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
- G06V20/584—Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads of vehicle lights or traffic lights
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V2201/00—Indexing scheme relating to image or video recognition or understanding
- G06V2201/08—Detecting or categorising vehicles
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Abstract
The invention provides an anti-tracking method and device based on a navigation system. The method includes S1 starting the navigation system, inputting destination information, and programming the navigation route; S2 acquiring the fork road number m on the navigation route; S3 acquiring the image of a vehicle behind when the vehicle approaches the fork road, and identifying and recording the license plate number; and S4 continuously recording the license plate numbers of m-2 fork roads and determining whether the repeated license plate number exceeds the threshold value P, if yes, reminding the driver that he/she has been followed and displaying the license plate number of the suspected vehicle. The anti-tracking method based on the navigation system is low in false alarm rate and high in reliability.
Description
Technical field
The present invention relates to vehicle electronics technical field, particularly relate to a kind of antitracking method based on navigational system and device.
Background technology
Along with the raising of living standards of the people, the recoverable amount of automobile increases greatly, causes car tracing event to happen occasionally, make individual privacy even personal safety receive threat.Therefore, effective antitracking method is needed badly.Current antitracking method mainly contains two kinds: a kind of is artificial method, is confirmed whether tracked by room mirror and rear-view mirror, has disperseed the notice of driver, has had a strong impact on driving safety; A kind of is automatic identifying method based on machine vision, but current automatic identification model is comparatively simple, rate of false alarm is higher, time such as on the road that same does not have branch road, will inevitably there is some vehicle is in same section situation with higher frequency and this vehicle.
Summary of the invention
The invention provides a kind of antitracking method based on navigational system and device, be intended to solve the problem that the automatic identifying method rate of false alarm of current antitracking is higher, realize accurately identifying, improve Consumer's Experience.
For achieving the above object, the technical solution used in the present invention is:
One aspect of the present invention provides a kind of antitracking method based on navigational system, comprising:
S1. navigational system is opened, input destination information, planning navigation way;
S2. the fork in the road quantity m on navigation way is obtained;
S3., when judging vehicle close to fork in the road, obtaining the image of front vehicle, and the number-plate number is identified, carrying out record;
S4. record the number-plate number of m-2 fork in the road continuously, judge whether the number-plate number wherein repeated exceedes threshold value P, in this way, then point out driver's possibility tracked, the license plate number of display suspect vehicle.
Particularly, described m is at least 5.
Particularly, described threshold value P is:
When 5≤m≤10, P=80%; When 11≤m≤20, P=70%; When 21≤m≤30, P=60%; When 31≤m≤40, P=70%; When 41≤m≤50, P=80%; As 51≤m, P=50%.
Further, before described step S1, also comprise:
S0. antitracking pattern is opened.
Further, also comprise after described S4:
S5. driver's rerouting of road is advised, after driver accepts described suggestion, the new navigation way of planning from last fork in the road to destination, and the image of Real-time Obtaining rear view of vehicle, judge whether described suspect vehicle exists, if then point out driver tracked, carry out counter-measure.
Further, also comprise after described S4:
S6. the image of shooting is uploaded to high in the clouds by wireless network to preserve.
The present invention provides a kind of antitracking device based on navigational system on the other hand, comprising: processing module, GPS locating module, destination load module, path planning module, fork in the road acquisition module, image collection module, Car license recognition module, memory module, human-computer interaction module;
Described processing module, for for the control between each module;
Described GPS locating module, for determining the current location of vehicle;
Described destination load module, for inputting destination information;
Described path planning module, for planning the traffic route from current location to destination;
Described fork in the road acquisition module, for obtaining the fork in the road quantity on current programme path from map;
Described image collection module, for obtaining the image of rear view of vehicle;
Described Car license recognition module, for identifying the number-plate number in the image that gets;
Described memory module, for storing the number-plate number identified;
Described human-computer interaction module, for showing the suspicious number-plate number and other interactive information.
In one embodiment of the invention, the described antitracking device based on navigational system, also comprises: for the image of shooting to be uploaded to transmission module on the wireless data preserved in high in the clouds by wireless network.
Beneficial effect of the present invention is: the present invention is by obtaining the fork in the road quantity on navigation way, record the license plate number of multiple fork in the road continuously, calculate the probability that suspect vehicle occurs, when the probability occurred exceedes threshold value alarm, greatly reduce rate of false alarm, achieve the accurate identification of antitracking, reliability is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the antitracking based on navigational system of the present invention.
Fig. 2 is the road topology schematic diagram of the antitracking based on navigational system of the present invention.
Embodiment
Specifically illustrate embodiments of the present invention below in conjunction with accompanying drawing, accompanying drawing is only for reference and use is described, does not form the restriction to scope of patent protection of the present invention.
Embodiments of the invention provide a kind of antitracking method based on navigational system on the one hand, comprising:
S1. antitracking pattern is opened.
Due in most cases, can not be occurred by the phenomenon that people follows the tracks of, and in certain special period, user may feel and to be followed the tracks of by people, in this case, mode manually can open antitracking pattern.In specific implementation process, by arranging " antitracking pattern " icon in man-machine interface, the mode of entity button also can be set on car machine, can also be realized by Voice command.
S2. navigational system is opened, input destination information, planning navigation way.
The aid that onboard navigation system is gone on a journey as people, extensively popularizes on car machine.For user provides route guiding easily.By the position that GPS, GLONASS, Galileo or triones navigation system determination vehicle are current, user only need input destination information, automatically can calculate the route between departure place and destination.
S3. the fork in the road quantity on navigation way is obtained.
The map of current onboard navigation system is digitized electronic chart, and road is the network being connected by multiple node and formed, and as shown in Figure 2, therefore, the topological structure obtaining road realizes than being easier to.In concrete enforcement, can by the mode of traversal road circuit node, the fork in the road between obtaining from origin to destination, is designated as X1, X2 successively ... Xm, quantity is designated as m.For ensureing implementation result, m is at least 5; As m < 5, very little, suggestion uses artificial observing pattern in prompting fork in the road.
S3., when judging vehicle close to fork in the road, obtaining the image of front vehicle, and the number-plate number is identified, carrying out record.
Be easy to judge that whether Current vehicle is close to fork in the road by the route planning of navigational system and GPS location, when judging vehicle close to fork in the road, open the wide-angle camera being arranged on rear view of vehicle, the image of shooting rear view of vehicle, and pass through image procossing, identify the car plate of all vehicles, carry out record.Consider that tracking may occur in night, therefore camera can select infrared camera.Image procossing and license plate recognition technology are very ripe at present, do not repeat them here.
S4. record the number-plate number of m-2 fork in the road continuously, judge whether the number-plate number wherein repeated exceedes threshold value P, in this way, then point out driver's possibility tracked, the license plate number of display suspect vehicle.
Particularly, when 5≤m≤10, P=80%; When 11≤m≤20, P=70%; When 21≤m≤30, P=60%; When 31≤m≤40, P=70%; When 41≤m≤50, P=80%; As 51≤m, P=50%.
S5. driver's rerouting of road is advised, after driver accepts described suggestion, the new navigation way of planning from last fork in the road Xm to destination, and the image of Real-time Obtaining rear view of vehicle, judge whether described suspect vehicle exists, if then point out driver tracked, carry out counter-measure.
S6. the image of shooting is uploaded to high in the clouds by wireless network to preserve.
As shown in Figure 1, the present invention provides a kind of antitracking device based on navigational system on the other hand, comprising: transmission module on processing module, GPS locating module, destination load module, path planning module, fork in the road acquisition module, image collection module, Car license recognition module, memory module, human-computer interaction module, wireless data;
Described processing module, for the control between each module;
Described GPS locating module, for determining the current location of vehicle;
Described destination load module, for inputting destination information;
Described path planning module, for planning the traffic route from current location to destination;
Described fork in the road acquisition module, for obtaining the fork in the road quantity on current programme path from map;
Described image collection module, for obtaining the image of rear view of vehicle;
Described Car license recognition module, for identifying the number-plate number in the image that gets;
Described memory module, for storing the number-plate number identified;
Described human-computer interaction module, for showing the suspicious number-plate number and other interactive information.
Transmission module on described wireless data, preserves for the image of shooting is uploaded to high in the clouds by wireless network.
The course of work of the antitracking device based on navigational system of the present invention is:
After user starts antitracking pattern, path planning module accepts to carry out path planning from the destination information of destination load module.
After path planning completes, fork in the road acquisition module is by traveling through the mode of road circuit node, fork in the road X1, X2 between obtaining from origin to destination ... Xm, quantity is designated as m.
Located by GPS module, when processing module judges vehicle close to fork in the road, open the image collection module (as wide-angle camera) being arranged on rear view of vehicle, the image of shooting rear view of vehicle, carry out image procossing, Car license recognition Module recognition goes out the car plate of all vehicles, and processing module is stored in memory module.
Processing module records the number-plate number of m-2 fork in the road continuously, judges whether the number-plate number wherein repeated exceedes preset value, if any, then point out driver's possibility tracked, by the license plate number of human-computer interaction module display suspect vehicle.
Processing module suggestion driver rerouting of road, and show in the mode of man-machine interaction, after driver accepts described suggestion, the new navigation way of path planning module planning from last fork in the road Xm to destination.Processing module controls the image of image collection module Real-time Obtaining rear view of vehicle, judge whether described suspect vehicle exists, if then point out driver tracked, carry out counter-measure, and the image of shooting is uploaded to high in the clouds preservation by transmission module on wireless data.
Above disclosedly be only preferred embodiment of the present invention, the scope of the present invention can not be limited with this, therefore according to the equivalent variations that the present patent application the scope of the claims is done, still belong to the scope that the present invention is contained.
Claims (8)
1., based on an antitracking method for navigational system, it is characterized in that, comprising:
S1. navigational system is opened, input destination information, planning navigation way;
S2. the fork in the road quantity m on navigation way is obtained;
S3., when judging vehicle close to fork in the road, obtaining the image of front vehicle, and the number-plate number is identified, carrying out record;
S4. record the number-plate number of m-2 fork in the road continuously, judge whether the number-plate number wherein repeated exceedes threshold value P, in this way, then point out driver's possibility tracked, the license plate number of display suspect vehicle.
2. the antitracking method based on navigational system according to claim 1, is characterized in that, before described step S1, also comprise:
S0. antitracking pattern is opened.
3. the antitracking method based on navigational system according to claim 1, is characterized in that, also comprise after described S4:
S5. driver's rerouting of road is advised, after driver accepts described suggestion, the new navigation way of planning from last fork in the road to destination, and the image of Real-time Obtaining rear view of vehicle, judge whether described suspect vehicle exists, if then point out driver tracked, carry out counter-measure.
4. the antitracking method based on navigational system according to claim 1, is characterized in that, also comprise after described S4:
S6. the image of shooting is uploaded to high in the clouds by wireless network to preserve.
5. the antitracking method based on navigational system according to claim 1, is characterized in that:
Described m is at least 5.
6. the antitracking method based on navigational system according to claim 1, is characterized in that:
Described threshold value P is:
When 5≤m≤10, P=80%; When 11≤m≤20, P=70%; When 21≤m≤30, P=60%; When 31≤m≤40, P=70%; When 41≤m≤50, P=80%; As 51≤m, P=50%.
7. the antitracking device based on navigational system, it is characterized in that, comprising: processing module, GPS locating module, destination load module, path planning module, fork in the road acquisition module, image collection module, Car license recognition module, memory module, human-computer interaction module;
Described processing module, for the control between each module;
Described GPS locating module, for determining the current location of vehicle;
Described destination load module, for inputting destination information;
Described path planning module, for planning the traffic route from current location to destination;
Described fork in the road acquisition module, for obtaining the fork in the road quantity on current programme path from map;
Described image collection module, for obtaining the image of rear view of vehicle;
Described Car license recognition module, for identifying the number-plate number in the image that gets;
Described memory module, for storing the number-plate number identified;
Described human-computer interaction module, for showing the suspicious number-plate number and other interactive information.
8. the antitracking device based on navigational system according to claim 7, is characterized in that, also comprise:
For the image of shooting to be uploaded to transmission module on the wireless data preserved in high in the clouds by wireless network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201511010537.7A CN105404882A (en) | 2015-12-26 | 2015-12-26 | Anti-tracking method and device based on navigation system |
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| CN201511010537.7A CN105404882A (en) | 2015-12-26 | 2015-12-26 | Anti-tracking method and device based on navigation system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106503622A (en) * | 2016-09-26 | 2017-03-15 | 北京格灵深瞳信息技术有限公司 | A kind of vehicle antitracking method and device |
| CN106529401A (en) * | 2016-09-26 | 2017-03-22 | 北京格灵深瞳信息技术有限公司 | Vehicle anti-tracking method, vehicle anti-tracking device and vehicle anti-tracking system |
| CN107067778A (en) * | 2017-04-28 | 2017-08-18 | 惠州华阳通用电子有限公司 | A kind of vehicle antitracking method for early warning and device |
| CN110865400A (en) * | 2018-08-27 | 2020-03-06 | 上海博泰悦臻网络技术服务有限公司 | Method and system for anti-tracking and method and system for position tracking |
| CN111959419A (en) * | 2020-08-25 | 2020-11-20 | 惠州华阳通用电子有限公司 | Vehicle-mounted device starting method and storage medium |
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| CN111959419A (en) * | 2020-08-25 | 2020-11-20 | 惠州华阳通用电子有限公司 | Vehicle-mounted device starting method and storage medium |
| CN111959419B (en) * | 2020-08-25 | 2024-06-04 | 惠州华阳通用电子有限公司 | Vehicle-mounted device starting method and storage medium |
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