CN107719226A - A kind of intelligent control method of the headlight for vehicle light lamp based on car networking - Google Patents
A kind of intelligent control method of the headlight for vehicle light lamp based on car networking Download PDFInfo
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- CN107719226A CN107719226A CN201710749673.0A CN201710749673A CN107719226A CN 107719226 A CN107719226 A CN 107719226A CN 201710749673 A CN201710749673 A CN 201710749673A CN 107719226 A CN107719226 A CN 107719226A
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- vehicle
- headlight
- light lamp
- vehicular map
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
- B60Q1/1415—Dimming circuits
- B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
- B60Q1/1415—Dimming circuits
- B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
- B60Q1/143—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic combined with another condition, e.g. using vehicle recognition from camera images or activation of wipers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/30—Indexing codes relating to the vehicle environment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/30—Indexing codes relating to the vehicle environment
- B60Q2300/31—Atmospheric conditions
- B60Q2300/314—Ambient light
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/40—Indexing codes relating to other road users or special conditions
- B60Q2300/42—Indexing codes relating to other road users or special conditions oncoming vehicle
Abstract
A kind of intelligent control method of the headlight for vehicle light lamp based on car networking, including：(1) particular location of key node is found on vehicular map, using key node as the center of circle, distance is required as radius using driving, draws target domain；(2) when this car touches the border of target domain, the corresponding control operation of headlight for vehicle light lamp is made；(3) when occurring other vehicles in target domain, the corresponding control operation of headlight for vehicle light lamp is made；(4) the extraneous intensity of illumination, temperature and relative humidity or wireless signal and compared with corresponding threshold value of this car are gathered in real time, make the corresponding control operation of headlight for vehicle light lamp；The present invention realizes and effectively and accurately the intelligent comprehensive of far and near lamp is controlled that system loading is small, stable, safe.
Description
Technical field
The present invention relates to intelligent automobile field, more particularly to a kind of intelligent control of the headlight for vehicle light lamp based on car networking
Method.
Background technology
Technology of Internet of things is developed rapidly at present, and car networking technology is then technology of Internet of things in intelligent transportation field
Concrete application.Car networking onboard system is using vehicle as control object, while by vehicle as information node, by system
Each automobile carries out perception collection to running environment information, and information sharing is realized using wireless communication technology, vehicle is carried out big
The intelligent unified management of scale, accurately information Check inquiries, route guidance, the skilful diagnosis of event and amusement and recreation are provided the user in real time
Deng service, the trip mode of people is effectively improved, strengthens transport capacity, prevention or the hair for alleviating traffic accident of road traffic
It is raw, reduce pollution and energy resource consumption of the road traffic to environment, the management and control ability of lifting traffic control portion mouth, so as to be advantageous to alleviate city
City's road traffic gathers around all situations, solves urban transport problems.But current car networking technology fails to the long-and-short distant light for vehicle
Effective intelligent control is carried out, can not still avoid causing asking for traffic accidents to the unreasonable use of long-and-short distant light completely
Topic, the phenomenon for especially abusing high beam are quite serious.Long-and-short distant light is one of important lighting apparatus on automobile, if but unreasonable
Using long-and-short distant light, traffic safety can be directly affected.
Because the light ray parallel of high beam projects, light is concentrated and brightness is larger, and illuminance is big；If in night meeting,
It can be made to generation moment blinding on Driver Vision, driver drives as closed one's eyes in the short time, to surrounding using high beam
Pedestrian and front and rear to carry out car observation ability substantially zeroed.And vehicle is in the case where opening high beam, if pedestrian from
During 15 meters or so places of Chinese herbaceous peony, the figure of pedestrian will be swallowed up by light completely, and driver can not see pedestrian.In addition, rear low coverage
If from vehicle open high beam when, will appear from large area halation in inside and outside 3 rearview mirrors of front truck, reduce in front of rear car
The visual range of road conditions, and largely effect on traffic safety.And running into the road surface ring that there are the low visibilities such as mist, rain, snow, sand and dust
Border, and enter tunnel, without street lamp when extraneous intensity of illumination too low running environment when, because unreasonable using dipped headlight and remote
Light lamp and cause the situation of driving accident；If use that therefore can not reasonably to long-and-short distant light, the row at night can be seriously reduced
Car safety, greatly increase the occurrence probability of peril.Therefore, for proposing that one kind being capable of accurate and effective control headlight for vehicle light
The method of lamp, the safety traffic to vehicle have important social effect.
The content of the invention
It is an object of the invention to propose a kind of intelligent control method of the headlight for vehicle light lamp based on car networking, realize
Effectively and accurately the intelligent comprehensive of far and near lamp is controlled in changeable environment, system loading is small, stable, to remote/near
Much sooner, security is higher for the judgement and operation of switching and open and close between light lamp and side-marker lamp.
To use following technical scheme up to this purpose, the present invention：
A kind of intelligent control method of the headlight for vehicle light lamp based on car networking, including it is car networking car-mounted terminal, vehicle-mounted fixed
Position system, function sensor and vehicle；The car networking car-mounted terminal, for being communicated by wireless network and control centre, obtain
Take the transport information of condition of road surface, vehicle density, including distribution position of the in the same direction/opposed vehicle on vehicular map near this car
Put；The vehicle positioning system, for obtaining more specific location information of this car on vehicular map, and found on vehicular map
With respect to key node nearest in front of this truck position；
The function sensor includes illuminance transmitter, humiture transducer and wireless signal acquisition device；The illumination
Transmitter is spent, the intensity of illumination extraneous for gathering this car in real time；The humiture transducer, is gathered outside this car in real time for adopting
The temperature and relative humidity on boundary；The wireless signal acquisition device, for detection wireless signal；
Including following content：
(1) particular location of key node is found on vehicular map, the key node includes the entrance in tunnel, crossing
Or any one in the real-time particular location of this car, using the key node as the center of circle, and using suitable distance as radius, draw mesh
Mark field；
(2) when this car touches the border of the target domain, the corresponding control operation of headlight for vehicle light lamp is made；
(3) when occurring other vehicles in the target domain, the corresponding control operation of headlight for vehicle light lamp is made；
(4) the extraneous intensity of illumination, temperature and relative humidity of this car are gathered in real time or wireless signal and are entered with corresponding threshold value
Row compares, and makes the corresponding control operation of headlight for vehicle light lamp.
More preferably, when the key node is tunnel, obtain target domain and make the corresponding control of headlight for vehicle light lamp
System operation, comprises the following steps：
D11：This car is detected whether in closing light status or open high beam state, if so, step D12 is performed, it is no
Then, step D11 is continued executing with；
D12：Current location of this car on vehicular map is obtained, and relative this car current location is found in vehicular map
The nearest tunnel in front, the distance d1 on the vehicular map according to corresponding to vehicular map engineer's scale converses 15 meters；
D13：Using the entrance in the nearest tunnel in the front as the center of circle on vehicular map, distance d1 is that radius work circle obtains one
Individual field A；
D14：Obtain particular location of this car on vehicular map in real time, vehicular map be taken in this car for the first time touch
During the border of the field A, whether this car is detected in closing light status, if so, then this car opens dipped headlight and side-marker lamp,
Otherwise, high beam is switched to dipped headlight by this car；
D15：Particular location of this car on vehicular map is obtained in real time, is touched for the second time in vehicular map this car of being taken in
During the border of the field A, the relative next nearest tunnel in front in this car current location is found on vehicular map, is entered
Step D13 is circulated.
More preferably, the extraneous temperature of this car and relative humidity are gathered in real time compared with corresponding threshold value, and make vehicle
The corresponding control operation of long-and-short distant light, comprises the following steps：
D21：By demarcating fine day, cloudy day to different temperatures and relative humidity, the rainy day, the greasy weather, snowing and sand and dust, wherein fine
It is 0, the cloudy day, the rainy day, the greasy weather, snow and sand and dust be 1；The data demarcated composition training set is trained to SVM, should
SVM input variables are temperature and relative humidity, are exported as 0 or 1, and kernel function is gaussian kernel function, and training algorithm is calculated using SMO
Method, obtain the SVM that training is completed；
D22：Detect whether this car is in light closed mode, if so, performing step D23, otherwise, continue executing with step
D22；
D23：This car gathered the extraneous temperature of this car and relatively wet in real time at interval of 1 second by the humiture transducer
Degree, and input to the SVM for having trained completion；
D24：0 or 1 will be exported by having trained the SVM of completion, if output 1, this car opens dipped headlight and side-marker lamp.
More preferably, when the key node is crossing, obtain target domain and make the corresponding control of headlight for vehicle light lamp
System operation, comprises the following steps：
D31：This car is detected whether in high beam state is opened, if so, performing step D32, otherwise, continues executing with step
D31；
D32：Current location of this car on vehicular map is obtained, and relative this car current location is found in vehicular map
The nearest crossing in front, the distance d on the vehicular map according to corresponding to vehicular map engineer's scale converses 150 meters；
D33：Using the nearest crossing in the front as the center of circle on vehicular map, distance d is that radius work circle obtains a field
B；
D34：Obtain particular location of this car on vehicular map in real time, vehicular map be taken in this car for the first time touch
During the border of the field B, then high beam is switched to dipped headlight by this car；
D35：Particular location of this car on vehicular map is obtained in real time, is touched for the second time in vehicular map this car of being taken in
During the border of the field B, the relative next nearest crossing in front in this car current location is found on vehicular map, is entered
Step D33 is circulated.
More preferably, when the key node is the real-time particular location of this car, obtain target domain and to make vehicle remote
The corresponding control operation of dipped headlight, comprises the following steps：
D41：Obtain real-time particular location of this car on vehicular map；
D42：Polar coordinate system is established using vehicular map, the limit of the polar coordinate system is the described real-time particular location of car,
Pole axis is this car direction of advance, using the limit of the polar coordinate system as the fan-shaped center of circle in the polar coordinate system, is with+π/9 and-π/9
Two radius sides of the sector, using the distance d radiuses fan-shaped as this, obtain a fan-shaped field C；
D43：Obtain apart from 200 meters of this car it is all in the same direction or real time position of the opposed vehicles on vehicular map, in car
If carrying and occurring other vehicles on map in the fan-shaped field C, high beam is switched to dipped headlight and circulated by this car performs this step
Rapid D43.
More preferably, when the vehicle gets wireless signal, the corresponding control operation of headlight for vehicle light lamp is made, including
Following steps：
D51：This car is detected whether in high beam state is opened, if so, performing D52, otherwise, continues executing with step D51；
D52：Wireless signal of the wireless signal acquisition device interval real-time detection in 1 second in the range of 50 meters of this car；
D53：If the wireless signal acquisition device is detected with wireless signal, i.e., go out in the range of 50 meters of this car existing
People, then high beam is switched to dipped headlight by this car and entrance step D52 is circulated.
More preferably, when the extraneous intensity of illumination for gathering this car in real time is less than 50lx, the correspondence of headlight for vehicle light lamp is made
Control operation, comprise the following steps：
D61：Detect whether this car is in light closed mode, if so, performing D62, otherwise, continue executing with step D61；
D62：The vehicle-mounted four illuminance transmitter intervals of this car gather four different positions on this car vehicle body for 1 second in real time
The intensity of illumination put；
D63：The average m for four intensities of illumination that the vehicle-mounted four illuminance transmitters are collected is calculated, if average m
Less than 50lx, then this car opens dipped headlight and side-marker lamp.
More preferably, when the extraneous intensity of illumination for gathering this car in real time is less than 3lx, the corresponding control of headlight for vehicle light lamp is made
System operation, comprises the following steps：
D71：This car is detected whether in light closed mode or unlatching dipped headlight state, if so, D72 is performed, otherwise, after
It is continuous to perform step D71；
D72：The vehicle-mounted four illuminance transmitter intervals of this car gather four different positions on this car vehicle body for 1 second in real time
The intensity of illumination put；
D73：The average m for four intensities of illumination that the vehicle-mounted four illuminance transmitters are collected is calculated, if average m
Less than 3lx, detect whether this car is in light closed mode, if so, then this car opens high beam and side-marker lamp, otherwise, this car
Dipped headlight is switched into high beam.
More preferably, when the extraneous intensity of illumination for gathering this car in real time is more than 200lx, the correspondence of headlight for vehicle light lamp is made
Control operation, comprise the following steps：
D81：This car is detected whether in unlatching dipped headlight state or unlatching high beam state, if so, D82 is performed, otherwise,
Continue executing with step D81；
D82：The vehicle-mounted four illuminance transmitter intervals of this car gather four different positions on this car vehicle body for 1 second in real time
The intensity of illumination put；
D83：The average m for four intensities of illumination that the vehicle-mounted four illuminance transmitters are collected is calculated, if average m
More than 200lx, whether this car is detected in dipped headlight state is opened, if so, then this car closes dipped headlight, otherwise, this car is closed
High beam.
More preferably, four not during parking, on vehicle-mounted four of this car current this car vehicle bodies of illuminance transmitters collection
With the average m of four intensities of illumination of intensity of illumination and calculating of position, if average m is less than 3lx, opens or keep dipped headlight to open
State is opened, closes this car dipped headlight between countdown after two minutes.
Beneficial effects of the present invention：To the judgement and operation of remote/switching between dipped headlight and side-marker lamp and open and close more
Add in time, security is higher, wherein the reasonable switching for having entered driving lamp before key node is run into for this car, so that this car light
Light matches with local environment in advance, avoids driver operation from slipping up；When carrying out meeting for Ben Che and other vehicles, realize and seeing
During light that is weaker or not seeing opponent vehicle completely, Pre-handoff to dipped headlight carries out meeting, so as to effectively avoid in meeting
The various harm or accident that the high beam of car triggers；Combining target domain variability can then be kept away by the use of triggering reaction as control model
The continuous real-time range for repeatedly calculating this car and other each key nodes or neighbouring vehicle in real time of hand-free, greatly reduces controller
Calculated load, reduce whole control system load, while the every detection of more vehicles can be undertaken, be not easy to crash, react
Faster, security is higher for speed, so as to ensure the stability of system operation, avoids accident from occurring；Realize under changeable environment
During driving, the intelligent comprehensive of the car light of vehicle is controlled, improves the convenience and validity of vehicle operating, reduced because violating the regulations indiscriminate
Personal safety accident caused by with car light, improves traffic safety.
Brief description of the drawings
Fig. 1 is the mounting structure schematic diagram of the vehicle-mounted function sensor of this car of one embodiment of the invention；
Wherein：Illuminance transmitter 1, humiture transducer 2, wireless signal acquisition device 3.
Embodiment
Below in conjunction with the accompanying drawings and by embodiment come more preferably technical scheme.
A kind of intelligent control method of the headlight for vehicle light lamp based on car networking, including it is car networking car-mounted terminal, vehicle-mounted fixed
Position system, function sensor and vehicle；The car networking car-mounted terminal, for being communicated by wireless network and control centre, obtain
Take the transport information of condition of road surface, vehicle density, including distribution position of the in the same direction/opposed vehicle on vehicular map near this car
Put；The vehicle positioning system, for obtaining more specific location information of this car on vehicular map, and found on vehicular map
With respect to key node nearest in front of this truck position；
The function sensor includes illuminance transmitter, humiture transducer and wireless signal acquisition device；The illumination
Transmitter is spent, the intensity of illumination extraneous for gathering this car in real time；The humiture transducer, is gathered outside this car in real time for adopting
The temperature and relative humidity on boundary；The wireless signal acquisition device, for detection wireless signal；
Including following content：
(1) particular location of key node is found on vehicular map, the key node includes the entrance in tunnel, crossing
Or any one in the real-time particular location of this car, using the key node as the center of circle, and using suitable distance as radius, draw mesh
Mark field；
(2) when this car touches the border of the target domain, the corresponding control operation of headlight for vehicle light lamp is made；
(3) when occurring other vehicles in the target domain, the corresponding control operation of headlight for vehicle light lamp is made；
(4) the extraneous intensity of illumination, temperature and relative humidity of this car are gathered in real time or wireless signal and are entered with corresponding threshold value
Row compares, and makes the corresponding control operation of headlight for vehicle light lamp.
A kind of headlight for vehicle light lamp intelligent control method based on car networking proposed by the present invention, it mainly passes through car networking
Car-mounted terminal, vehicle positioning system and function sensor, respectively to the geographical position between each vehicle, the light opening state of this car
The information extraction of state state, traveling external environment and each key node, and by way of delimiting target area, with the target area
Domain is judgment standard, accurately and effectively makes the corresponding control operation of headlight for vehicle light lamp；Make the judgement more quick and accurate,
Manipulation is easy, it is achieved thereby that in changeable environment down train, the intelligent comprehensive of the car light of vehicle is controlled, improves vehicle behaviour
The convenience and validity of work, reduce because abuse car light violating the regulations and caused by personal safety accident, improve traffic safety.
Compared to existing car light control mode, judgement operation of the present invention to remote/dipped headlight switching is accurate much sooner, peace
Full property is higher, and specific feature is as follows：(1) the reasonable switching for having entered driving lamp before key node is run into for this car, so that this
Car light matches with local environment in advance, avoids driver operation from slipping up；(2) it is real when carrying out meeting for Ben Che and other vehicles
When seeing light that is weaker or not seeing opponent vehicle completely now, Pre-handoff to dipped headlight carries out meeting, so as to effectively
Avoid the various harm in the high beam initiation of meeting or accident；(3) combining target domain variability is used as control by the use of triggering reaction
Pattern, then it can avoid continuing the real-time range for repeatedly calculating this car and other each key nodes or neighbouring vehicle in real time, significantly
The calculated load of controller is reduced, reduces whole control system load, while the every detection of more vehicles can be undertaken, no
Easily crash, faster, security is higher for reaction speed, so as to ensure the stability of system operation, avoids accident from occurring.
More preferably, when the key node is tunnel, obtain target domain and make the corresponding control of headlight for vehicle light lamp
System operation, comprises the following steps：
D11：This car is detected whether in closing light status or open high beam state, if so, step D12 is performed, it is no
Then, step D11 is continued executing with；
D12：Current location of this car on vehicular map is obtained, and relative this car current location is found in vehicular map
The nearest tunnel in front, the distance d1 on the vehicular map according to corresponding to vehicular map engineer's scale converses 15 meters；
D13：Using the entrance in the nearest tunnel in the front as the center of circle on vehicular map, distance d1 is that radius work circle obtains one
Individual field A；
D14：Obtain particular location of this car on vehicular map in real time, vehicular map be taken in this car for the first time touch
During the border of the field A, whether this car is detected in closing light status, if so, then this car opens dipped headlight and side-marker lamp,
Otherwise, high beam is switched to dipped headlight by this car；
D15：Particular location of this car on vehicular map is obtained in real time, is touched for the second time in vehicular map this car of being taken in
During the border of the field A, the relative next nearest tunnel in front in this car current location is found on vehicular map, is entered
Step D13 is circulated.
The above method, can not only before this car enters tunnel, by the geographical position to this car and tunnel portal it
Between distance judgement, with realize exactly control car light intelligent control；Distance d1 is used as radius, using tunnel portal as the center of circle
Work is justified, and obtains target domain, this car Vehicle lighting is entered by the traveling real time position of acquired target domain and Ben Che
Control, without repeatedly calculating in real time distance between Ben Che and tunnel portal, it is achieved that car row trigger-type
Control to car light is more convenient, simple and accurate before tunnel is entered.
More preferably, the extraneous temperature of this car and relative humidity are gathered in real time compared with corresponding threshold value, and make vehicle
The corresponding control operation of long-and-short distant light, comprises the following steps：
D21：By demarcating fine day, cloudy day to different temperatures and relative humidity, the rainy day, the greasy weather, snowing and sand and dust, wherein fine
It is 0, the cloudy day, the rainy day, the greasy weather, snow and sand and dust be 1；The data demarcated composition training set is trained to SVM, should
SVM input variables are temperature and relative humidity, are exported as 0 or 1, and kernel function is gaussian kernel function, and training algorithm is calculated using SMO
Method, obtain the SVM that training is completed；
D22：Detect whether this car is in light closed mode, if so, performing step D23, otherwise, continue executing with step
D22；
D23：This car gathered the extraneous temperature of this car and relatively wet in real time at interval of 1 second by the humiture transducer
Degree, and input to the SVM for having trained completion；
D24：0 or 1 will be exported by having trained the SVM of completion, if output 1, this car opens dipped headlight and side-marker lamp.
More preferably, when the key node is crossing, obtain target domain and make the corresponding control of headlight for vehicle light lamp
System operation, comprises the following steps：
D31：This car is detected whether in high beam state is opened, if so, performing step D32, otherwise, continues executing with step
D31；
D32：Current location of this car on vehicular map is obtained, and relative this car current location is found in vehicular map
The nearest crossing in front, the distance d on the vehicular map according to corresponding to vehicular map engineer's scale converses 150 meters；
D33：Using the nearest crossing in the front as the center of circle on vehicular map, distance d is that radius work circle obtains a field
B；
D34：Obtain particular location of this car on vehicular map in real time, vehicular map be taken in this car for the first time touch
During the border of the field B, then high beam is switched to dipped headlight by this car；
D35：Particular location of this car on vehicular map is obtained in real time, is touched for the second time in vehicular map this car of being taken in
During the border of the field B, the relative next nearest crossing in front in this car current location is found on vehicular map, is entered
Step D33 is circulated.
In order to avoid vehicle is when traveling is to crossing, because the driving for failing to influence other vehicles closing high beam in time is pacified
Entirely, by the way that using crossing as the center of circle, distance d is that radius is made to justify, and obtains target domain, and using this car contact target field boundary as base
It is accurate that intelligent control is carried out to this car light, so as to which more accurately control vehicle makes when by crossing to the specification of long-and-short distant light
With travel safety is higher.
More preferably, when the key node is the real-time particular location of this car, obtain target domain and to make vehicle remote
The corresponding control operation of dipped headlight, comprises the following steps：
D41：Obtain real-time particular location of this car on vehicular map；
D42：Polar coordinate system is established using vehicular map, the limit of the polar coordinate system is the described real-time particular location of car,
Pole axis is this car direction of advance, using the limit of the polar coordinate system as the fan-shaped center of circle in the polar coordinate system, is with+π/9 and-π/9
Two radius sides of the sector, using the distance d radiuses fan-shaped as this, obtain a fan-shaped field C；
D43：Obtain apart from 200 meters of this car it is all in the same direction or real time position of the opposed vehicles on vehicular map, in car
If carrying and occurring other vehicles on map in the fan-shaped field C, high beam is switched to dipped headlight and circulated by this car performs this step
Rapid D43.
In the prior art, the distance of the car of generally use direct measurement two obtains the geographical position of this car and neighbouring vehicle
Relation, but this metering system will calculate two car distances of neighbouring vehicle and this workshop in real time, and the CPU of control system, which is calculated, to be born
Lotus is larger, will largely effect on the stability and reliability of whole control system；Therefore the present invention establishes pole using vehicular map and sat
Mark system, the limit of the polar coordinate system is the described real-time particular location of car, and pole axis is this car direction of advance, in the polar coordinate system
Using the limit of the polar coordinate system as the fan-shaped center of circle, two radius sides with+π/9 and-π/9 for the sector, using distance d as the sector
Radius, obtain a fan-shaped field, it is only necessary to detect whether other vehicles be present in the fan-shaped field, without complexity
Frequently calculate, detection is more comprehensive, and faster, travel safety is higher for reaction speed.
More preferably, when the vehicle gets wireless signal, the corresponding control operation of headlight for vehicle light lamp is made, including
Following steps：
D51：This car is detected whether in high beam state is opened, if so, performing D52, otherwise, continues executing with step D51；
D52：Wireless signal of the wireless signal acquisition device interval real-time detection in 1 second in the range of 50 meters of this car；
D53：If the wireless signal acquisition device is detected with wireless signal, i.e., go out in the range of 50 meters of this car existing
People, then high beam is switched to dipped headlight by this car and entrance step D52 is circulated.
Wherein described wireless signal is generally mobile phone signal, real-time detection in the distance of 50 meters of the front that this car travels whether
Pedestrian be present, high beam is switched into dipped headlight, effective guarantee pedestrains safety and traffic safety in time.
More preferably, when the extraneous intensity of illumination for gathering this car in real time is less than 50lx, the correspondence of headlight for vehicle light lamp is made
Control operation, comprise the following steps：
D61：Detect whether this car is in light closed mode, if so, performing D62, otherwise, continue executing with step D61；
D62：The vehicle-mounted four illuminance transmitter intervals of this car gather four different positions on this car vehicle body for 1 second in real time
The intensity of illumination put；
D63：The average m for four intensities of illumination that the vehicle-mounted four illuminance transmitters are collected is calculated, if average m
Less than 50lx, then this car opens dipped headlight and side-marker lamp.
More preferably, when the extraneous intensity of illumination for gathering this car in real time is less than 3lx, the corresponding control of headlight for vehicle light lamp is made
System operation, comprises the following steps：
D71：This car is detected whether in light closed mode or unlatching dipped headlight state, if so, D72 is performed, otherwise, after
It is continuous to perform step D71；
D72：The vehicle-mounted four illuminance transmitter intervals of this car gather four different positions on this car vehicle body for 1 second in real time
The intensity of illumination put；
D73：The average m for four intensities of illumination that the vehicle-mounted four illuminance transmitters are collected is calculated, if average m
Less than 3lx, detect whether this car is in light closed mode, if so, then this car opens high beam and side-marker lamp, otherwise, this car
Dipped headlight is switched into high beam.
More preferably, when the extraneous intensity of illumination for gathering this car in real time is more than 200lx, the correspondence of headlight for vehicle light lamp is made
Control operation, comprise the following steps：
D81：This car is detected whether in unlatching dipped headlight state or unlatching high beam state, if so, D82 is performed, otherwise,
Continue executing with step D81；
D82：The vehicle-mounted four illuminance transmitter intervals of this car gather four different positions on this car vehicle body for 1 second in real time
The intensity of illumination put；
D83：The average m for four intensities of illumination that the vehicle-mounted four illuminance transmitters are collected is calculated, if average m
More than 200lx, whether this car is detected in dipped headlight state is opened, if so, then this car closes dipped headlight, otherwise, this car is closed
High beam.
More preferably, four not during parking, on vehicle-mounted four of this car current this car vehicle bodies of illuminance transmitters collection
With the average m of four intensities of illumination of intensity of illumination and calculating of position, if average m is less than 3lx, opens or keep dipped headlight to open
State is opened, closes this car dipped headlight between countdown after two minutes.
A kind of judgement operation modules of the intelligent control method of the headlight for vehicle light lamp based on car networking of embodiment 1- include
S10~S90, as shown in figure 1,
S10：During parking, if light is opened and surveyed ambient light is less than 50lx according to strength mean value, kept after this car is flame-out
Dipped headlight extinguishes after being delayed 2 minutes；
S20：This car starts, and when not opening car light, if surveyed ambient light is less than 50lx according to strength mean value, triggers dipped beam automatically
Lamp and side-marker lamp；
S30：It is automatic to trigger dipped headlight and side-marker lamp into before tunnel when this car does not open car light；
S40：When this car does not open car light, the severe external environment of heavy rain/dense fog/snowy day/sand and dust is met, triggers dipped beam automatically
Lamp and side-marker lamp；
S50：When this car dipped headlight is opened, if surveyed ambient light is less than 3lx according to strength mean value, the automatic dipped headlight that triggers is cut
It is changed to high beam；
S60：When this car high beam is opened, if at 150 meters of vehicle distances crossing, the automatic high beam that triggers switches to dipped beam
Lamp；
S70：This car high beam open when, if in front of vehicle distances in the same direction/150 meters of opposed vehicle place, automatically trigger
High beam switches to dipped headlight；
S80：When this car high beam is opened, if at 50 meters of vehicle distances pedestrian, the automatic high beam that triggers switches to dipped beam
Lamp；
S90：When this car light is opened, if surveyed ambient light is more than 200lx according to strength mean value, this car light is closed.
Embodiment 2- obtains target domain and makes the corresponding control of headlight for vehicle light lamp when the key node is tunnel
The method for making operation, comprises the following steps：
S31：Particular location of this car on vehicular map is obtained according to vehicle positioning system, and phase is found in vehicular map
To tunnel nearest in front of the vehicle location；
S32：Distance d1 on vehicular map according to corresponding to vehicular map engineer's scale converses 15 meters；
S33：Using the entrance in tunnel nearest in front of this truck position as the center of circle on vehicular map, distance d1 is that radius is made to justify
Obtain a field A；
S34：When vehicle positioning system obtains the border that particular location of the vehicle on vehicular map touch field A
When, whether this car is detected in closing light status, if so, then this car opens dipped headlight and side-marker lamp, otherwise, this car is by distance light
Lamp switches to dipped headlight；
S35：Field A is touched for the second time when vehicle positioning system obtains particular location of the vehicle on vehicular map
Border when, continue to find the nearest tunnel in next front of the relative vehicle location on vehicular map, and circulate above-mentioned
Step S33~S35.
Embodiment 3- obtains target domain and makes the corresponding control of headlight for vehicle light lamp when the key node is crossing
The method for making operation, comprises the following steps：
S61：Particular location of this car on vehicular map is obtained according to vehicle positioning system, and found on vehicular map
With respect to crossing nearest in front of this truck position；
S62：The distance d on vehicular map to be converted according to vehicular map engineer's scale corresponding to 150 meters；
S63：Using crossing nearest in front of this truck position as the center of circle on vehicular map, distance d is that radius work circle obtains one
Individual field B；
S64：When vehicle positioning system obtains the border that particular location of this car on vehicular map touch field C,
This car high beam is then triggered automatically switches to dipped headlight；
S65：When vehicle positioning system obtains the side that particular location of this car on vehicular map touch field B again
Boundary, the nearest crossing in next front of this relative truck position is found on vehicular map, and circulate above-mentioned steps S63~S65.
Embodiment 4- obtains target domain and to make vehicle remote when the key node is the real-time particular location of this car
The method of the corresponding control operation of dipped headlight, comprises the following steps：
S71：Particular location of this car on vehicular map is obtained according to vehicle positioning system, and established on vehicular map
Polar coordinate system, the polar coordinates limit are the real-time particular location of this car, and pole axis is this car direction of advance；
S72：It is fan-shaped two and half with+π/9 and-π/9 using the polar coordinates limit as the fan-shaped center of circle in the polar coordinate system
Footpath side, the radius using distance d as sector, obtains a fan-shaped field C；
S73：The transport information provided according to car networking car-mounted terminal, obtain neighbouring in the same direction/opposed vehicle vehicle-mounted
Particular location on figure；
S74：If there are other vehicles in the fan-shaped field C on vehicular map, the switching of this car high beam is triggered automatically
For dipped headlight.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and limiting the scope of the invention can not be construed in any way.Based on explanation herein, the technology of this area
Personnel would not require any inventive effort the other embodiments that can associate the present invention, and these modes are fallen within
Within protection scope of the present invention.
Claims (10)
- A kind of 1. intelligent control method of the headlight for vehicle light lamp based on car networking, it is characterised in that：Including car networking vehicle-mounted end End, vehicle positioning system, function sensor and vehicle；The car networking car-mounted terminal, for by wireless network and control The heart communicates, acquisition condition of road surface, the transport information of vehicle density, including in the same direction/opposed vehicle near this car is in vehicular map On distributing position；The vehicle positioning system, for obtaining more specific location information of this car on vehicular map, and vehicle-mounted Key node nearest in front of this relative truck position is found on map；The function sensor includes illuminance transmitter, humiture transducer and wireless signal acquisition device；The illuminance becomes Device is sent, the intensity of illumination extraneous for gathering this car in real time；The humiture transducer, this car external world is gathered in real time for adopting Temperature and relative humidity；The wireless signal acquisition device, for detection wireless signal；Including following content：(1) particular location of key node is found on vehicular map, the key node includes entrance, crossing or the sheet in tunnel Any one in the real-time particular location of car, using the key node as the center of circle, and distance is required as radius using driving, draw mesh Mark field；(2) when this car touches the border of the target domain, the corresponding control operation of headlight for vehicle light lamp is made；(3) when occurring other vehicles in the target domain, the corresponding control operation of headlight for vehicle light lamp is made；(4) the extraneous intensity of illumination, temperature and relative humidity of this car are gathered in real time or wireless signal and are compared with corresponding threshold value Compared with making the corresponding control operation of headlight for vehicle light lamp.
- 2. a kind of intelligent control method of headlight for vehicle light lamp based on car networking according to claim 1, its feature exist In：When the key node is tunnel, obtains target domain and make the corresponding control operation of headlight for vehicle light lamp, including such as Lower step：D11：This car is detected whether in closing light status or unlatching high beam state, if so, step D12 is performed, otherwise, after It is continuous to perform step D11；D12：Current location of this car on vehicular map is obtained, and the front of relative this car current location is found in vehicular map Nearest tunnel, the distance d1 on the vehicular map according to corresponding to vehicular map engineer's scale converses 15 meters；D13：Using the entrance in the nearest tunnel in the front as the center of circle on vehicular map, distance d1 is that radius work circle obtains a neck Domain A；D14：Obtain particular location of this car on vehicular map in real time, vehicular map be taken in this car touch for the first time it is described During field A border, whether this car is detected in light status is closed, if so, then this car unlatching dipped headlight and side-marker lamp, no Then, high beam is switched to dipped headlight by this car；D15：Obtain particular location of this car on vehicular map in real time, vehicular map be taken in this car touch for the second time it is described During field A border, the relative next nearest tunnel in front in this car current location is found on vehicular map, into step D13 is circulated.
- 3. a kind of intelligent control method of headlight for vehicle light lamp based on car networking according to claim 1, its feature exist In：The extraneous temperature of this car and relative humidity are gathered in real time compared with corresponding threshold value, and make pair of headlight for vehicle light lamp Control operation is answered, is comprised the following steps：D21：By demarcating fine day, cloudy day to different temperatures and relative humidity, the rainy day, the greasy weather, snowing and sand and dust, wherein fine day are 0, the cloudy day, the rainy day, the greasy weather, snow and sand and dust be 1；The data demarcated composition training set is trained to SVM, the SVM is defeated It is temperature and relative humidity to enter variable, is exported as 0 or 1, and kernel function is gaussian kernel function, and training algorithm uses SMO algorithms, is obtained Train the SVM completed；D22：Detect whether this car is in light closed mode, if so, performing step D23, otherwise, continue executing with step D22；D23：This car gathered the extraneous temperature and relative humidity of this car in real time at interval of 1 second by the humiture transducer, and Input to the SVM for having trained completion；D24：0 or 1 will be exported by having trained the SVM of completion, if output 1, this car opens dipped headlight and side-marker lamp.
- 4. a kind of intelligent control method of headlight for vehicle light lamp based on car networking according to claim 1, its feature exist In：When the key node is crossing, obtains target domain and make the corresponding control operation of headlight for vehicle light lamp, including such as Lower step：D31：This car is detected whether in high beam state is opened, if so, performing step D32, otherwise, continues executing with step D31；D32：Current location of this car on vehicular map is obtained, and the front of relative this car current location is found in vehicular map Nearest crossing, the distance d on the vehicular map according to corresponding to vehicular map engineer's scale converses 150 meters；D33：Using the nearest crossing in the front as the center of circle on vehicular map, distance d is that radius work circle obtains a field B；D34：Obtain particular location of this car on vehicular map in real time, vehicular map be taken in this car touch for the first time it is described During field B border, then high beam is switched to dipped headlight by this car；D35：Obtain particular location of this car on vehicular map in real time, vehicular map be taken in this car touch for the second time it is described During field B border, the relative next nearest crossing in front in this car current location is found on vehicular map, into step D33 is circulated.
- 5. a kind of intelligent control method of headlight for vehicle light lamp based on car networking according to claim 1, its feature exist In：When the key node is the real-time particular location of this car, obtains target domain and make the correspondence of headlight for vehicle light lamp Control operation, comprise the following steps：D41：Obtain real-time particular location of this car on vehicular map；D42：Polar coordinate system is established using vehicular map, the limit of the polar coordinate system is the described real-time particular location of car, pole axis For this car direction of advance, using the limit of the polar coordinate system as the fan-shaped center of circle in the polar coordinate system, with+π/9 and-π/9 for the fan Two radius sides of shape, using the distance d radiuses fan-shaped as this, obtain a fan-shaped field C；D43：Obtain apart from 200 meters of this car it is all in the same direction or real time position of the opposed vehicles on vehicular map, vehicle-mounted If occurring other vehicles on figure in the fan-shaped field C, high beam is switched to dipped headlight and circulated by this car performs this step D43。
- 6. a kind of intelligent control method of headlight for vehicle light lamp based on car networking according to claim 1, its feature exist In：When the vehicle gets wireless signal, the corresponding control operation of headlight for vehicle light lamp is made, is comprised the following steps：D51：This car is detected whether in high beam state is opened, if so, performing D52, otherwise, continues executing with step D51；D52：Wireless signal of the wireless signal acquisition device interval real-time detection in 1 second in the range of 50 meters of this car；D53：If the wireless signal acquisition device is detected with wireless signal, i.e., there is pedestrian in the range of 50 meters of this car, then High beam is switched to dipped headlight and circulated into step D52 by this car.
- 7. a kind of intelligent control method of headlight for vehicle light lamp based on car networking according to claim 1, its feature exist In：When the extraneous intensity of illumination for gathering this car in real time is less than 50lx, the corresponding control operation of headlight for vehicle light lamp is made, including Following steps：D61：Detect whether this car is in light closed mode, if so, performing D62, otherwise, continue executing with step D61；D62：The vehicle-mounted four illuminance transmitter intervals of this car gather on this car vehicle body four diverse locations for 1 second in real time Intensity of illumination；D63：The average m for four intensities of illumination that the vehicle-mounted four illuminance transmitters are collected is calculated, if average m is less than 50lx, then this car open dipped headlight and side-marker lamp.
- 8. a kind of intelligent control method of headlight for vehicle light lamp based on car networking according to claim 1, its feature exist In：When the extraneous intensity of illumination for gathering this car in real time is less than 3lx, the corresponding control operation of headlight for vehicle light lamp is made, including Following steps：D71：This car is detected whether in light closed mode or unlatching dipped headlight state, if so, performing D72, otherwise, continues to hold Row step D71；D72：The vehicle-mounted four illuminance transmitter intervals of this car gather on this car vehicle body four diverse locations for 1 second in real time Intensity of illumination；D73：The average m for four intensities of illumination that the vehicle-mounted four illuminance transmitters are collected is calculated, if average m is less than 3lx, detects whether this car is in light closed mode, if so, then this car opens high beam and side-marker lamp, otherwise, this car is nearly Light lamp switches to high beam.
- 9. a kind of intelligent control method of headlight for vehicle light lamp based on car networking according to claim 1, its feature exist In：When the extraneous intensity of illumination for gathering this car in real time is more than 200lx, the corresponding control operation of headlight for vehicle light lamp is made, is wrapped Include following steps：D81：This car is detected whether in opening dipped headlight state or opening high beam state, if so, performing D82, otherwise, is continued Perform step D81；D82：The vehicle-mounted four illuminance transmitter intervals of this car gather on this car vehicle body four diverse locations for 1 second in real time Intensity of illumination；D83：The average m for four intensities of illumination that the vehicle-mounted four illuminance transmitters are collected is calculated, if average m is more than 200lx, whether this car is detected in dipped headlight state is opened, if so, then this car closes dipped headlight, otherwise, this car closes distance light Lamp.
- 10. a kind of intelligent control method of headlight for vehicle light lamp based on car networking according to claim 1, its feature exist In：During parking, the illumination of four diverse locations on vehicle-mounted four current this car vehicle bodies of illuminance transmitter collection of this car Intensity and the average m for calculating four intensities of illumination, if average m is less than 3lx, dipped headlight opening is opened or kept, is counted This car dipped headlight is closed after two minutes time.
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