CN104890567A - Method and device for automatically turning on double-flash light - Google Patents
Method and device for automatically turning on double-flash light Download PDFInfo
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- CN104890567A CN104890567A CN201510364708.XA CN201510364708A CN104890567A CN 104890567 A CN104890567 A CN 104890567A CN 201510364708 A CN201510364708 A CN 201510364708A CN 104890567 A CN104890567 A CN 104890567A
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Abstract
The invention provides a method and a device for automatically turning on a double-flash light. The method comprises the steps of calculating the current visibility; turning on the double-flash light when the visibility is less than the preset threshold, and otherwise, detecting the vehicle speed and a hand brake; treating the video which is shot by a vehicle-mounted camera from the vehicle behind when that the vehicle speed is 0 and the hand brake is held is detected; determining whether the vehicle is in a running state; if so, sending an instruction to a vehicle-mounted ECU, and turning on the double-flash lamp; sending the instruction to the vehicle-mounted ECU and turning off the double-flash light when that the vehicle speed is no 0 and the hand brake is released is detected. With the adoption of the method and the device, the double-flash light can be automatically turned on, and collision can be effectively prevented.
Description
Technical field
The present invention relates to technical field of vehicle safety, particularly relate to method and the device of the two flashing light of a kind of automatic unlatching.
Background technology
Two flashing light is a kind of signal lamp, under referring to that automobile is in error state or some special travel situations, the light prompt signal that left and right turn signal is glimmered simultaneously, notices that in order to remind other vehicles and pedestrian this car there occurs fault or extraordinary circumstances, prevents rear-end collision.Except in the situations such as vehicle et out of order, temporary term stop, when visbilitys such as running into mist, rain, snow, sand and dust is less than the meteorological conditions of 100 meters, should use equally.Two main armrest of flashing light is dynamic at present opens and closes.And sometimes, under the environment that chaufeur is not formed when curb parking or visbility is lower, open the custom of two flashing light, there is certain potential safety hazard.
Summary of the invention
The invention provides method and the device of the two flashing light of a kind of automatic unlatching, be intended to solve the problem that two flashing light at present can only manually open and close, realize the automatic open and close of two flashing light, improve travel safety.
For achieving the above object, the technical solution used in the present invention is:
One aspect of the present invention provides the method for the two flashing light of a kind of automatic unlatching, comprising:
Calculate current visbility, when low visibility is in predetermined threshold value, opens two flashing light, otherwise detect the speed of a motor vehicle and parking brake;
When detecting that the speed of a motor vehicle is 0, after parking brake pull-up, the video of the rear view of vehicle of vehicle-mounted camera shooting being processed, judges whether the vehicle be kept in motion, if any then sending instructions to vehicle-mounted ECU, opening two flashing light;
When detecting that the speed of a motor vehicle is not 0, after parking brake release, sending instructions to vehicle-mounted ECU, closing two flashing light.
Particularly, the method calculating visbility is: image is carried out gray processing process, medium filtering is adopted to remove noise, then the consistent contrast ratio method of Kohler is adopted to extract the edge of image, again according to the relation between the brightness contrast of object under Koschmieder Horizon sky, carry out curve fitting, can visbility be obtained.
Particularly, the speed of a motor vehicle can be obtained by GPS or car speed sensor, and parking brake whether can be read from vehicle ECU by CAN by pull-up.
Particularly, judge whether that the method for the vehicle be kept in motion is:
First prestore the training sample that can represent all kinds of vehicles such as small passenger car, SUV, lorry, and the distance threshold D of Different categories of samples is set
l, then the Image Segmentation Using to shooting, extracts the target area of binaryzation, calculates the distance Dx of target to be identified and the proper vector of all kinds of vehicle training samples prestored, as Dx≤D
ltime, just can judge that target to be identified belongs to corresponding vehicle;
By adjacent two frames or multiple image, use frame differential method can judge whether this vehicle is kept in motion.
The present invention provides the device of the two flashing light of a kind of automatic unlatching on the other hand, and described onboard system is provided with Bus-Speed Monitoring module, parking brake detection module, video acquiring module, image processing module, visbility computing module, instruction sending module, processing module;
Described Bus-Speed Monitoring module, for detecting the present speed of vehicle;
Described parking brake detection module, for detecting the parking brake whether pull-up of vehicle;
Described video acquiring module, for taking the image of vehicle-periphery;
Described image processing module, for processing the ambient image photographed, as filtering, gray processing, segmentation, extraction target area, etc.
Described visbility computing module, for calculating current visbility;
Described instruction sending module, for sending two flashing light start signal;
Described processing module, for the control between each module.
Beneficial effect of the present invention is: whether the present invention, by calculating visbility and the state detecting the speed of a motor vehicle, parking brake, utilizes vehicle-mounted camera to detect rear and send a car, achieve and automatically open pair flashing light, effectively prevent to knock into the back.
Accompanying drawing explanation
Fig. 1 is the structural representation of the two flashing light of automatic unlatching of the present invention.
Detailed description of the invention
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.
As shown in Figure 1, embodiments of the invention provide the method for the two flashing light of a kind of automatic unlatching on the one hand, comprising:
Step 1., by processing the image of vehicle-periphery, calculates current visbility, when low visibility is in predetermined threshold value, then sends instructions to vehicle-mounted ECU, opens two flashing light, otherwise performs step 2.
Vehicle-mounted backup camera can adopt wide-angle infrared camera, to adapt to different driving periods, environment (situation that the visbility such as such as night, mist, rain, snow, sand and dust is lower).
Particularly, the method calculating visbility is: image is carried out gray processing process, medium filtering is adopted to remove noise, then the consistent contrast ratio method of Kohler is adopted to extract the edge of image, again according to the relation between the brightness contrast of object under Koschmieder Horizon sky, carry out curve fitting, can visbility be obtained.
Step 2., when detecting that the speed of a motor vehicle is 0, after parking brake pull-up, processes the video of the rear view of vehicle of vehicle-mounted camera shooting, judges whether the vehicle be kept in motion, and if any then sending instructions to vehicle-mounted ECU, opens two flashing light.
Particularly, the speed of a motor vehicle can be obtained by GPS or car speed sensor, and parking brake whether can be read from vehicle ECU by CAN by pull-up.
Particularly, judge whether that the method for the vehicle be kept in motion is:
First prestore the training sample that can represent all kinds of vehicles such as small passenger car, SUV, lorry, and the distance threshold D of Different categories of samples is set
l, then the Image Segmentation Using to shooting, extracts the target area of binaryzation, calculates the distance Dx of target to be identified and the proper vector of all kinds of vehicle training samples prestored, as Dx≤D
ltime, can judge that target to be identified belongs to corresponding vehicle.By adjacent two frames or multiple image, use frame differential method can judge whether this vehicle is kept in motion.
Step 3., when detecting that the speed of a motor vehicle is not 0, after parking brake release, sends instructions to vehicle-mounted ECU, closes two flashing light.
As shown in Figure 1, the present invention provides the device of the two flashing light of a kind of automatic unlatching on the other hand, and described onboard system is provided with Bus-Speed Monitoring module, parking brake detection module, video acquiring module, image processing module, visbility computing module, instruction sending module, processing module;
Described Bus-Speed Monitoring module, for detecting the present speed of vehicle;
Described parking brake detection module, for detecting the parking brake whether pull-up of vehicle;
Described video acquiring module, for taking the image of vehicle-periphery;
Described image processing module, for processing the ambient image photographed, as filtering, gray processing, segmentation, extraction target area, etc.
Described visbility computing module, for calculating current visbility;
Described instruction sending module, for sending two flashing light start signal;
Described processing module, for the control between each module.
The working process of the device of the two flashing light of automatic unlatching of the present invention is:
S1. the image of image processing module to the vehicle-periphery that video acquiring module (as wide-angle infrared camera) is taken processes, visbility computing module calculates current visbility, when low visibility is in predetermined threshold value, then instruction sending module sends instructions to vehicle-mounted ECU, open two flashing light, otherwise perform step S2.
S2. when Bus-Speed Monitoring module detects that the speed of a motor vehicle is 0, after parking brake detection module detects parking brake pull-up, the video of image processing module to the rear view of vehicle that vehicle-mounted camera is taken processes, processing module judges whether the vehicle be kept in motion, send instructions to vehicle-mounted ECU if any then instruction sending module, open two flashing light.
S3. when Bus-Speed Monitoring module detects that the speed of a motor vehicle is not 0, after parking brake detection module detects parking brake release, instruction sending module sends instructions to vehicle-mounted ECU, closes two flashing light.
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 (4)
1. automatically open a method for two flashing light, it is characterized in that, comprising:
Calculate current visbility, when low visibility is in predetermined threshold value, opens two flashing light, otherwise detect the speed of a motor vehicle and parking brake;
When detecting that the speed of a motor vehicle is 0, after parking brake pull-up, the video of the rear view of vehicle of vehicle-mounted camera shooting being processed, judges whether the vehicle be kept in motion, if any then sending instructions to vehicle-mounted ECU, opening two flashing light;
When detecting that the speed of a motor vehicle is not 0, after parking brake release, sending instructions to vehicle-mounted ECU, closing two flashing light.
2. the method for the two flashing light of automatic unlatching according to claim 1, is characterized in that, described in calculate current visbility method be specially:
Image is carried out gray processing process, adopt medium filtering to remove noise, then adopt the consistent contrast ratio method of Kohler to extract the edge of image, then according to the relation between the brightness contrast of object under Koschmieder Horizon sky, carry out curve fitting, can visbility be obtained.
3. the method for the two flashing light of automatic unlatching according to claim 1, is characterized in that, described in judge whether that the method for the vehicle be kept in motion is specially:
First prestore the training sample that can represent all kinds of vehicles such as small passenger car, SUV, lorry, and the distance threshold D of Different categories of samples is set
l, then the Image Segmentation Using to shooting, extracts the target area of binaryzation, calculates the distance Dx of target to be identified and the proper vector of all kinds of vehicle training samples prestored, as Dx≤D
ltime, namely can judge that target to be identified belongs to corresponding vehicle;
By adjacent two frames or multiple image, use frame differential method can judge whether this vehicle is kept in motion.
4. automatically open a device for two flashing light, it is characterized in that:
Described onboard system is provided with Bus-Speed Monitoring module, parking brake detection module, video acquiring module, image processing module, visbility computing module, instruction sending module, processing module;
Described Bus-Speed Monitoring module, for detecting the present speed of vehicle;
Described parking brake detection module, for detecting the parking brake whether pull-up of vehicle;
Described video acquiring module, for taking the image of vehicle-periphery;
Described image processing module, for processing the ambient image photographed, as filtering, gray processing, segmentation, extraction target area, etc.
Described visbility computing module, for calculating current visbility;
Described instruction sending module, for sending two flashing light start signal;
Described processing module, for the control between each module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510364708.XA CN104890567A (en) | 2015-06-25 | 2015-06-25 | Method and device for automatically turning on double-flash light |
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| CN201510364708.XA CN104890567A (en) | 2015-06-25 | 2015-06-25 | Method and device for automatically turning on double-flash light |
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| CN201510364708.XA Pending CN104890567A (en) | 2015-06-25 | 2015-06-25 | Method and device for automatically turning on double-flash light |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564298A (en) * | 2015-12-16 | 2016-05-11 | 观致汽车有限公司 | Method for automatically actuating rick warning lamp for vehicle |
| CN109131053A (en) * | 2018-09-11 | 2019-01-04 | 吉利汽车研究院（宁波）有限公司 | Vehicle light control method and automobile |
| CN109131052A (en) * | 2018-09-11 | 2019-01-04 | 吉利汽车研究院（宁波）有限公司 | Vehicle light control method and automobile |
| CN110171354A (en) * | 2019-05-15 | 2019-08-27 | 北京汽车股份有限公司 | A kind of curb parking active alarming method for power and system |
| CN110549935A (en) * | 2019-08-20 | 2019-12-10 | 武汉格罗夫氢能汽车有限公司 | Novel control device and control method for hydrogen energy automobile hazard warning lamp |
| CN112277805A (en) * | 2020-10-30 | 2021-01-29 | 湖南行必达网联科技有限公司 | Vehicle monitoring system and method |
| CN112644371A (en) * | 2020-12-24 | 2021-04-13 | 东风越野车有限公司 | Automatic danger alarm lamp control method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564298A (en) * | 2015-12-16 | 2016-05-11 | 观致汽车有限公司 | Method for automatically actuating rick warning lamp for vehicle |
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| CN109131053A (en) * | 2018-09-11 | 2019-01-04 | 吉利汽车研究院（宁波）有限公司 | Vehicle light control method and automobile |
| CN109131052A (en) * | 2018-09-11 | 2019-01-04 | 吉利汽车研究院（宁波）有限公司 | Vehicle light control method and automobile |
| CN109131053B (en) * | 2018-09-11 | 2020-07-07 | 吉利汽车研究院（宁波）有限公司 | Car lamp control method and car |
| CN110171354A (en) * | 2019-05-15 | 2019-08-27 | 北京汽车股份有限公司 | A kind of curb parking active alarming method for power and system |
| CN110549935A (en) * | 2019-08-20 | 2019-12-10 | 武汉格罗夫氢能汽车有限公司 | Novel control device and control method for hydrogen energy automobile hazard warning lamp |
| CN112277805A (en) * | 2020-10-30 | 2021-01-29 | 湖南行必达网联科技有限公司 | Vehicle monitoring system and method |
| CN112644371A (en) * | 2020-12-24 | 2021-04-13 | 东风越野车有限公司 | Automatic danger alarm lamp control method |
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Application publication date: 20150909 |
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