CN209248021U - The detection device that mist for vehicle detects - Google Patents
The detection device that mist for vehicle detects Download PDFInfo
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- CN209248021U CN209248021U CN201690001040.0U CN201690001040U CN209248021U CN 209248021 U CN209248021 U CN 209248021U CN 201690001040 U CN201690001040 U CN 201690001040U CN 209248021 U CN209248021 U CN 209248021U
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/003—Bistatic lidar systems; Multistatic lidar systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/86—Combinations of lidar systems with systems other than lidar, radar or sonar, e.g. with direction finders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/95—Lidar systems specially adapted for specific applications for meteorological use
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/4802—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
- G01N21/538—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke for determining atmospheric attenuation and visibility
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
- G01S17/931—Lidar systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model relates to a kind of detection devices (1) that the mist for vehicle (5) detects, include the photo-electric mist sensor device being disposed in the front region of vehicle (5), mist sensor device is designed to, for making area of space (4) be applied at least one first optical emission signals, and from the detection of this area of space (4) the reception signal that is reflected, electric signal is manufactured according to the intensity for receiving signal, wherein, the reception signal being detected is related to light intensity；At least one other sensor (2), the sensor are arranged to be used for detection data relevant to travel condition of vehicle and/or for detecting the vehicle environmental data near vehicle periphery；The utility model is characterized in that, determines while vehicle environmental data of the analytical unit near the data relevant to travel condition of vehicle and/or vehicle periphery for considering to be calculated, receives whether signal is interference signal or useful signal.
Description
Technical field
The utility model relates to a kind of detection devices for mist detection.
Background technique
Photo-electric sensing device (Lidar " Light Detecting and Ranging "), be based especially on laser be
System makes it possible to apart from vehicle to be more than 100m and detects target object with quite high accuracy of measurement, and has become skill
Art status.These sensing devices are for improving driving comfort and for improving safety, such as lane change auxiliary system, traffic congestion
Auxiliary system, dead angle monitoring, crossroad auxiliary system and crash sensing system.It is applied according to every kind, sensing device is mounted
In motor vehicles.
It is a kind of for determining the ken of the driver in mist or when other interference effects as known to 5 118 180 A of US
Method and apparatus.Wherein, a kind of transmitter-receiver is disposed in the front region of vehicle, and transmitter-receiver is used as
For range finder.A series of measuring beams are directed at the different measured zones of road surface by range finder.It is identified by measuring technique
By the beam of road surface institute backscattering.If weather condition is for example changed due to mist or other interference effects, institute's quilt
The characteristic of the signal of backscattering just changes or does not receive completely any scattered signal.Driver just pass through sound or
Optical alarm signal notices dangerous situation.
A kind of sensing device of atmospheric interference for identification as known to 5 206 698 A of US.Sensing device, which has, is used for line
The transmitter of property polarised light；With receiver, including first reception device, first reception device in its plane of polarization with
And it is filled perpendicular to light intensity of this place measurement from the light beam by backscattering for sending radiation cone, and including second reception
It sets, second reception device measurement is in the light intensity for sending the light beam by backscattering other than centrum from annular space region；
And there is analytical equipment, for analyzing measured signal, so as to determine, be in the distance to be calculated
It is no that there are the sight obstructions of veil, snow curtain or the curtain of rain either solid.The type of sight obstruction and its device is reached with light
Distance shown over the display.Light is used as up to device as the distance alarm equipment in vehicle, and combined data
The speedometer of processing unit and measurement car speed is used to, and basis is led to by the environmental condition that measured data are measured respectively
Cross the optimum speed for influencing driving and/or braking system to reach vehicle.
It is a kind of for being especially the method for the mobile calculating ken of vehicle as known to 5 987 152 A of US.In method
In, the position for indicating that set brightness in original image changes is converted by the original image that photo-electric filming apparatus is absorbed
The characteristics of image set.By characteristics of image relative to the range determination of photo-electric filming apparatus and the mistake of next distance value
Filter calculates the current ken of vehicle driver's either sensing system based on image procossing.Relative to traditional active
The advantages of formula method, is, without active transmitter, other than the transmission in air, and true visual object contrast
It is included into the calculating of the ken.
But above system is readily possible to detect the interference signal by mistakenly detecting for the greasy weather, so as to cause to touch without reason
It transmits messages alarm device.Especially when will be quite big come area of space that is monitoring and being thus loaded by detection device or not have
When being sealed, this problem just will appear.Such as may due to it is on vehicle in front, on bridge, in tunnel, in vehicle
Reflection on mark on trade or the branch due to being located on driveway touch transmitting/receiving signal, and can not credibly with by
In the greasy weather, the signal distinguishing of triggering comes.In above system, also not credibly the ken due to caused by heavy rain it is limited with
It is distinguish between the ken due to caused by the greasy weather is limited.But this believable differentiation is for example non-for the auto-control of Rear Fog Lamp
It is often necessary, because the vehicle being followed by may be made to dazzle and be thus likely to increase accident by the Rear Fog Lamp that mistake is opened
Risk.
Utility model content
It has found that these deficiencies, the purpose of this utility model are that, a kind of detection device for mist detection, inspection is provided
Measurement equipment can reliably distinguish greasy weather state and non-greasy weather-state.
This purpose is by a kind of detection device detected for mist with embodiment feature and passes through a kind of basis
The method of independent method is achieved.The expedients of detection device for mist detection are in the explanation of specific embodiment respectively
Hold.It should be noted that the feature individually enumerated in embodiment can be combined with each other in arbitrary, technically significant mode,
And thus indicate the more multi-configuration of the utility model.In addition, specification, especially combines with attached drawing, this is showed and specified
The characteristic of utility model.
The utility model relates to a kind of detection devices for mist detection, wherein detection device is according to the utility model packet
Photo-electric mist sensor device is included, mist sensor device is designed to, at least one first optics biography is loaded to area of space
Defeated signal and the reception signal reflected from this area of space to detect.Therefore, mist sensor device is configured to instead
Penetrate light room, also referred to as open type light room.Detection device for mist detection is preferably arranged in the front region of vehicle, more excellent
Choosing is disposed in behind front screen in vehicle due to the detection device that mist detects.
In the definition of the utility model, optical transmission signals are, for example, that a kind of the either a kind of of pulsed continuous swashs
Light beam, preferably optical transmission signals are also that a kind of either one kind of pulsed is manufactured continuously through light emitting diode (LED)
Light.It is preferred that optical transmission signal is in far red light spectral limit, more preferably it is near infrared spectral range.
The area of space being loaded is by arranging transmitters and receivers its radiation characteristic or reception characteristic in other words
Arrangement is come previously given.Wherein, transmitters and receivers are arranged so that is overlapped in the presence of at least part.It is preferred that sending out
Send characteristic and receive characteristic and be thus calibrated, so as to the area of space that is loaded extend to being incremented by for distance it is infinite, because
For such as transmitter main radiation direction and transmitter primary recipient direction, also referred to as its optical axis, in parallel with each other prolong
It stretches or intersects under the acute angle less than 10 °.
Therefore, the area of space being loaded is received the optical beams profile of profile and transmitter by the optics of receiver
Connection is formed.Between geometric center point between the geometric center shop for the area of space being loaded and transmitters and receivers
Detection direction of the connecting line given generation.
It is preferred that providing, transmitters and receivers are oriented in this way, so that their optic axis is parallel or small in angle value
Intersect under 10 °, preferably smaller than 5 °, more preferably less than 3 ° of acute angle.
According to a kind of preferred design, transmitters and receivers are oriented in this way, so that its optic axis is in close proximity to transmitter
It is less than 20cm, preferably smaller than 15cm, more preferably less than the interval of 10cm with having in the region of receiver.Transmitters and receivers
Such as it is disposed on common circuit board.Such as transmitters and receivers are positioned to be located remotely from each other and have therebetween
Blow vent either rearview mirror base.
Detection device for mist detection is preferably arranged so that its detection direction cutting perpendicular to front screen
Face, to reduce undesirable reflection of the optical transmission signals when passing through by front screen, otherwise this will lead to connect
The excess-attenuation of the collection of letters number.
If there is such as greasy weather minimum in other words water droplet, particle, mark, tunnel in the area of space being loaded
The substance of wall, branch or the like body is just reflected by the transmission signal that transmitter is injected.Optical transmission signals are according to position
In the substance in the area of space being loaded reflection characteristic and reflected.In greasy weather according to the present utility model detection,
It is reflected stronglyer by the transmission signal that optical transmitter is injected, the greasy weather is thicker, that is to say, that by receiver as reception
Light intensity detected by signal is therefore bigger, and the greasy weather is closeer.According to the utility model, according to the intensity for receiving signal, to
Analytical unit issues electric signal so as to subsequent analysis.
Vehicle front is preferably placed at according to the area of space that the utility model is loaded.In the area of space being loaded
It is interior, such as all triggerable interference signal of branch above mark, tunnel, bridge or road.Therefore, determine in the utility model
In justice, interference signal is a kind of reception signal for being in background noise (Baseline) or more, being not based on greasy weather state.?
In the definition of the utility model, it is a kind of reception signal based on greasy weather state that useful signal is on the contrary.In order to determine reception signal
Whether it is a kind of useful signal or interference signal, while considering the related data of travel condition of vehicle and/or is considering
While against the vehicle environmental data of vehicle periphery, as far as possible immediately, i.e. in real time, for example it is being less than in a few tens of milliseconds
The reception signal being detected is analyzed and assessed in analytical unit.
In one embodiment, determining reception signal, which is useful signal, is carried out by threshold: if received at signal
More than threshold previously given, for greasy weather detection, it is detected by greasy weather state, and for example issue to vehicle driver
Alarm signal and/or vehicle electronic system just control the exterior lighting of vehicle using this testing result based on this.
According to the utility model, according to the related data of various travel condition of vehicle and/or various against vehicle periphery
Vehicle environmental data come adjust for the greasy weather detection threshold.Wherein it is determined that for the greasy weather detection threshold preferably dynamically into
Row, that is to say, that the threshold for greasy weather detection is, for example, constantly to be updated and carry out according to the data constantly newly obtained
Adjustment.
It is preferred that data relevant to travel condition of vehicle for example including speed, the scraping speed for scraping window device, clock, season,
Service condition, the service condition of Rear Fog Lamp of headlamp, the geographical coordinate transmitted by GPS can be with the ground of navigation equipment
Information exchange for example relevant to water system or tunnel effect in figure.
It is preferred that against vehicle periphery vehicle environmental data for example including weather data, just as temperature, air humidity, gas
The brightness of pressure, rainfall or vehicle periphery.It is preferred that the vehicle environmental data near the vehicle be arranged to clock, season with
And it is related to geographical coordinate.
For example when raining heavyly, the water on road is just used as splash to be raised by the vehicle of traveling ahead.This splash is by minimum
Water droplet constitute, and obtained and corresponding with the reception signal of greasy weather state will likely receive signal.It is preferred that by using one
A other sensor, such as rainy day sensor constantly measure rainfall, and are adjusted according to rainfall for greasy weather detection
Threshold.That is, when rainfall is very big, threshold is just set to higher, and when rainfall is few, threshold is just turned down.It is logical
This adjustment for crossing threshold, the sensitivity of photo-electric mist sensor device is adjusted according to the rainfall being detected, is thus avoided
Greasy weather of the mistake of splash is detected.
The area of space being loaded is preferably to be more than road headroom limit given in advance, it is possible to row
It sails vehicle in front and is in be loaded area of space or less.In addition, the detection direction obtained preferably at preferably 30 ° extremely
In 90 ° of angular range, more preferably in 30 ° to 80 ° of angular range, most preferably in 30 ° to 60 ° of angular range
Intersect with driveway plane.Wherein, angular range preferably selects in this way, so that the area of space being loaded is as far as possible
As far as possible without any intersection point between the vehicle of the detection direction and traveling ahead that are in vehicle front, but are obtained.One this
Greasy weather detection in sample area of space given in advance enables to detect the greasy weather of the vehicle front, without will receive
Travel the interference signal in the vehicle in front.Vehicle driver can be thus by warning in advance, and correspondingly adjusts driving behavior,
Such as speed can be reduced.
In another kind design, the data about travel condition of vehicle preferably pass through one kind anyway all can be in vehicle
It is obtained for the data/address bus used and is forwarded to analytical unit, that is to say, that can also had independently of being detected for mist
The sensor of detection device is integrated into analytical unit.
Optimization Analysis unit is integrated in photo-electric mist sensor device.
Detection device according to the present utility model for mist detection is also comprised for saving be detected reception
The authenticity of signal and the measured vehicle environmental data about travel condition of vehicle and/or against vehicle periphery.Data
Such as be saved with corresponding geographical coordinate and time respectively, thus either with the variation characteristic of time, or number
According to the variation characteristic along section, can be called.The data being saved for example can be saved in this way, so that data exist
Again it opened available again when identical section.
Preferably, receive signal with the time and/or space variation characteristic be otherwise used for distinguish greasy weather state
With non-greasy weather state.For this purpose, the variation characteristic in time and/or space is labeled out in analytical unit.Such as receive signal
The time slowly risen and/or spatial variations it is peculiar for greasy weather state, and stage rising is then peculiar by tunnel.Rank
The time of segmentation and/or spatial variations refer to such a change curve, i.e., in the change curve, the signal that is detected
It in previously given section or jumps to higher horizontal by lower level in the period or is jumped to more by higher level
Low level.Signal represents herein to be received signal and represents in other words accordingly about the data of travel condition of vehicle generation in other words
Table abuts the vehicle environmental data of vehicle periphery accordingly.It is preferred that section given in advance is less than 10m, more preferably less than 8m
Long, the preferred time is equal to the time for passing through preferred section under present speed.Therefore, the previously given period for example exists
Preferably 500 milliseconds, more preferably 400 milliseconds when speed is 72km/h.
Such as by tunnel reflected reception signal time and/or spatial variations it is just for example, stage.But in tunnel
In the case where detection, the reception signal being detected more likely is in the threshold for greasy weather detection or more.Therefore, only
In the case where the intensity for solely considering reception signal, it just will mistakenly be detected as greasy weather state.But receive the stage variation of signal
It is not that greasy weather state institute is peculiar, therefore, is just eliminated by analytical unit in the case where receiving signal and being in stage rising
Greasy weather state.
Preferably, tunnel is detected by the change of brightness value, to avoid error detection greasy weather state.If brightness value
Measured by before dropping to preferably by one section of period given in advance or by one section of previously given section
Brightness value 20%, it is more preferred 15%, mostly preferably 10% threshold hereinafter, being so just detected as tunnel.Then, analysis is single
Member switch to tunnel mode " Auto fahrt gerade durch einen Tunnel (vehicle passes by tunnel) " and
Suspend greasy weather detection.It is especially used on daytime by the tunnel identification of luminance sensor.
If suddenly, brightened again that is stagely, that is to say, that brightness value passes through the previously given time
Section is more than in other words previously given threshold by previously given distance, just leaves tunnel mode.It is preferred that threshold is in tunnel
Before detection between the 40% to 60% of detected brightness value, more preferably it is between 45% to 55%, is most preferably in
50%.
Preferably, the distance passed through under tunnel mode is for example by counter, preferably by anyway in vehicle
Interior available data/address bus determines.The distance of defined before if more than, then tunnel mode is just closed again
It closes and thus avoids mistakenly suspending mist sensor device.
Preferably, the tunnel being identified to for example with geographical coordinate and distance be saved in the database on vehicle and/
Or it saves with being networked.These data can be subject to use, that is to say, that the number that can be saved when opening section again
According to calibrating current data, and from there through the probability for opening section repeatedly and additionally to reduce wrong identification tunnel.
In addition, authenticity can be analyzed by other data, available data relevant to the region of networking, such as before
The time change of one day temperature for example can be current and/or the temperature of prediction calibrate.Thus, for example can be in big temperature
Under fluctuation, the probability in greasy weather is just predicted before greasy weather detection.Such as can stroke at the beginning, in navigation system be root
The temperature change with the time is downloaded according to the place to be passed through of input.This can be for example by connecting with analytical unit automatically
Extras, such as smart phone either smartwatch carry out, or can by the internet connection that is arranged in the car come
It carries out.In addition, the section for being very easy to that the greasy weather occurs can be saved in analytical unit, section is to pass through the road of navigation system suggestion
Section is calibrated in other words with current geographical coordinate to calibrate.If determined for by the previously given section of navigation system
There is higher greasy weather probability, then, with regard to having carried out alert notification before greasy weather detection.Alert notification can visualize and/or
The mode of sound and/or tactile is realized.In addition, can also network during the trip downloads available data and/or use on the road
The data for the dense fog warning device set up in section.By vehicle, acquired vehicle environmental data can be for example together with ground during the trip
Reason coordinate is collected in the interior database saved, and the probability that thus greasy weather preferably just along the section occurs is made
It predicts out.In addition, for example actually having been detected by the coordinate and corresponding data, such as temperature change in greasy weather on it
Change, air humidity, brightness etc. can be saved, and be stored in the database on vehicle.This database can be in vehicle
Driver is arranged to network in the case where agreeing to, it is possible to also for the use of other traffic participants.Onboard and/or join
The data saved are netted with the calibrating coordinates of vehicle, and can be when detecting in the greasy weather in other words in the higher situation of greasy weather probability
It is used when alarm.
It is preferred that receive signal time and/or spatial variations analyzed, and by about travel condition of vehicle and/
Or the data of the vehicle environmental data against vehicle periphery come adjust for the greasy weather detection threshold.In addition, in the process of analysis
Period, the database saved on vehicle and/or networking institute can be used for prediction greasy weather probability for the database that uses and use in other words
In with current measurement data calibration.
According to the utility model, include for the method for the vehicle identification greasy weather so that area of space load at least one the
A kind of optical transmission signals and detect from the area of space being loaded the reception signal that is reflected, by being arranged
Photo-electric mist sensor device in vehicle front region.On a time in parallel method and step, pass through at least one
A other sensor detects the data about travel condition of vehicle and/or the vehicle environmental data against vehicle periphery.Base
In the intensity for receiving signal, generates electric signal and be forwarded to analytical unit.
It is preferred that analysis receives data and/or about the relevant data of travel condition of vehicle and/or abuts in analytical unit
The vehicle environmental data of vehicle periphery.
Based on above-mentioned analysis, in the data relevant to travel condition of vehicle for considering to be calculated and/or against vehicle periphery
Vehicle environmental data while determine, receiving signal is interference signal or useful signal.
It is interference signal or useful signal preferably by a kind of threshold for greasy weather detection it is preferable to determine signal is received
To carry out, wherein preferably constantly according to the data about travel condition of vehicle and/or the vehicle against vehicle periphery calculated
Environmental data adjusts the threshold for greasy weather detection.
It is preferred that saving running about vehicle for the reception data and/or calculating being detected in provided analytical unit
The data of state and/or vehicle environmental data against vehicle periphery.Then, in analytical unit, preferably to reception signal
The data about travel condition of vehicle and/or the vehicle environmental against vehicle periphery of time and/or spatial variations and/or calculating
The time of data and/or spatial variations are analyzed.Then, in subsequent process, the time and/or space for receiving signal become
The spatial variations of change and/or the data about travel condition of vehicle calculated and/or the vehicle environmental data against vehicle periphery
It is used for determining, receiving signal is useful signal or interference signal.
It is preferred that the ken just comes from useful signal in the method detected for mist.
Detailed description of the invention
The more features and advantage of the utility model are understood not to limited reality to the utility model by following
It applies in the explanation of example and obtains, embodiment is further described with reference to the accompanying drawings.These attached drawings are schematically shown:
Fig. 1 is arranged in the front region of vehicle for a kind of detection device for mist detection；
Fig. 2 is respectively that the 2D of the optical beams profile of photo-electric mist sensor device is shown；
Fig. 3 is the distinctive time change of the reception signal and luminance signal in the Tunnel testing under non-greasy weather state；
Fig. 4 is the distinctive time change of the reception signal and luminance signal under greasy weather state；
In different figures, part equivalent in terms of its function indicates identical label always, therefore, to these parts
Generally also only make disposable explanation.
Specific embodiment
Fig. 1 schematically shows the device according to the present utility model 1 for the detection device of mist detection in vehicle 5
Front region in, wherein photo-electric mist sensor device 3 is disposed in behind interior front screen.Photo-electric mist passes
The angle of intersection that the optic axis 8 of sensor equipment 3 is about 45 ° with road 9.It is placed based on this angle, the institute in the height of 1m
The optic axis 8 of the photo-electric mist sensor device 3 of placement has just been in height in the case where hood length is 1.5m
On bumper before about 2.5m.It is ensured that the optic axis 8 of photo-electric mist sensor device 3 and traveling ahead
Vehicle 14 is without any intersection point.Meanwhile the area of space 4 of photo-electric mist sensor device 3 being loaded is for road 9
It is still quite remote from 5 front of vehicle is obtained in rather low height.Another sensor 2 is schematically disposed in the vehicle of vehicle 5
On top, wherein sensor 2 in addition each of can be placed on vehicle 5 very important for identifying various data
On position.By the data of other sensor 2, for the greasy weather, the threshold of detection is correspondingly adjusted.If detected
Greasy weather state both can issue alert notice to vehicle driver, and can also carry out the automatic adjustment of fog lamp 15 according to the ken.
Fig. 2 a and Fig. 2 b show the top views of the optical beams profile 6,7 for transmitter 11 and receiver 12.It sends
Device 11 and receiver 12 are arranged so that its optic axis intersects respectively.In the identical situation of optical beams profile, two
Size of the angle of intersection of optic axis given the area of space 4 loaded by photo-electric mist sensor device 3.It is loaded
Area of space 4 formed by the optical beams profile of transmitter 6 and the joining for optical beams profile of receiver 7.It is loaded
Area of space 4 geometric center point and transmitter 11 and receiver 12 between geometric center point between connecting line given
The generated detection direction 8 of photo-electric mist sensor device 3.
Equipment according to the present utility model is not only suitable for optic axis to method according to the present utility model in principle in other words
Orientation as shown in Figure 2 a is also applied for orientation shown in Fig. 2 b, although because be loaded in both cases
Area of space is wide but can still provide for the authenticity verification of greasy weather detection.But because of the increase error detection with area of space
Risk also improves, and just especially advantage according to the present utility model occurs in these orientations of optic axis, i.e., wherein, institute
The area of space being loaded is larger, such as terminal is greater than 2.5m, preferably greater than 3m apart from mist sensor device, more preferably greater than
5m.So, if optic axis is especially in infinitely or approximate in unlimited middle intersection, as shown in figure 2b, root has just been reached
The advantages of according to the utility model.Such a mist sensor device of setting shown in b can be quite cost-effectively real according to fig. 2
It is existing.
It can be seen that vehicle 5, the vehicle is in the front region of vehicle 5 equipped with according to the present utility model in Fig. 3
Detection device for mist detection 1.The vehicle 14 of traveling ahead is in be loaded area of space 4 hereinafter, not therefore being detected
Surveying is interference signal.But the area of space 4 being loaded is in be more than road headroom limit given in advance, therefore, position
Interference signal is just detected as in the tunnel 13 of 5 front of vehicle.A in Fig. 3 shows a kind of distinctive stage for receiving signal 7
Formula time change, the inspection of photo-electric mist sensor device 3 for the vehicle 5 which has travelled to constant speed towards tunnel 13
It measures.Pass through this distinctive stage signal, so that it may infer and obtain greasy weather state.It is set by by photo-electric mist sensor
Standby brightness value independently obtaining, by abutting vehicle periphery detected by luminance sensor, so that it may which verifying receives signal 7
The analysis result of time change.The time change of brightness value shows a kind of mutually converse with time change that is receiving signal 7
Staggered time change.Therefore, so that it may the result by the confirmation of independent measurement method based on the reception signal detected.Especially
It is tunnel 13 just have been recognized by the analysis of brightness value, vehicle 5 is just switched to tunnel mode on daytime.In tunnel mode
Under, measurement of the pause for mist detection.
It can be seen that vehicle 5, the vehicle is in the front region of vehicle 5 equipped with according to the present utility model in Fig. 4
Detection device for mist detection 1.The vehicle 14 of traveling ahead is in be loaded area of space 4 hereinafter, not therefore being detected
Surveying is interference signal.Mist 16 is to be indicated by three towards upper arrow herein, wherein the height of arrow indicates mist 16
Density.A in Fig. 4 show with constant speed towards in mist 16 traveling vehicle 5 with photo-electric mist sensor device 3
Distinctive, monotone increasing the time change of detected reception signal 7.If receiving signal 7 to be according to other biography
More than the threshold that the data of sensor 2 are adjusted, then being just detected as greasy weather state.In addition, brightness value such as institute in the b in Fig. 4
The distinctive time change shown can also be used to distinguish greasy weather state and non-greasy weather state.
Claims (14)
1. detection device (1) of the one kind for the detection of vehicle (5) mist, comprising:
The photo-electric mist sensor device (3) being disposed in the front region of vehicle (5), mist sensor device (3) quilt
It is designed as, so that area of space (4) loads at least one first optical transmission signals (6) and examines from this area of space (4)
Survey the reception signal (7) that is reflected of institute, and generate electric signal according to the intensity of reception signal (7), wherein institute's quilt
The reception signal of detection is associated with light intensity；
At least one other sensor (2), the sensor (2) are arranged to be used for detecting the number about travel condition of vehicle
According to and/or for detection abut vehicle periphery vehicle environmental data；
A kind of analytical unit, analytical unit data relevant to travel condition of vehicle determined by considering and/or vehicle
After the vehicle environmental data of near its circumference, determine whether the reception signal (7) is interference signal or useful signal,
It is characterized in that,
In the detection device (1), the area of space (4) that is loaded be located at for road headroom limit given in advance with
On, angular range (10) road Nei Yu of the detection direction (8) of the photo-electric mist sensor device (3) obtained at 30 ° to 90 °
Road surfaces (9) intersection.
2. the detection device (1) according to claim 1 for the detection of vehicle (5) mist, in the detection device (1), such as
Reception signal (7) described in fruit has been more than the threshold for mist detection, and the reception signal (7) is determined as useful signal,
In, the threshold for mist detection is according to the identified data about travel condition of vehicle and/or against vehicle periphery
Vehicle environmental data adjust.
3. the detection device (1) according to claim 1 for the detection of vehicle (5) mist, wherein the reception signal (7)
Time and/or spatial variations be used to determine whether the reception signal is useful signal or interference signal.
4. the detection device (1) according to claim 1 for the detection of vehicle (5) mist, in the detection device (1),
The area of space (4) being loaded is located at for more than road headroom limit given in advance, the photo-electric mist sensor is set
The detection direction (8) obtained of standby (3) intersects in 30 ° to 80 ° of angular range with road surface (9).
5. the detection device (1) according to claim 4 for the detection of vehicle (5) mist, in the detection device (1),
The area of space (4) being loaded is located at for more than road headroom limit given in advance, the photo-electric mist sensor is set
The detection direction (8) obtained of standby (3) intersects in 30 ° to 60 ° of angular range with road surface (9).
6. the detection device (1) according to claim 1 for the detection of vehicle (5) mist, in the detection device (1), institute
Stating about the data of travel condition of vehicle and/or the vehicle environmental data against vehicle periphery is determined by data/address bus
's.
7. the detection device (1) according to claim 1 for the detection of vehicle (5) mist, in the detection device (1), institute
Analytical unit is stated to be integrated into the photo-electric mist sensor device (3).
8. the detection device (1) according to claim 1 for the detection of vehicle (5) mist, wherein the space region being loaded
Domain (4) is formed by the optical beams profile and the joining for optical beams profile of receiver (12) of transmitter (11), the transmission
Device (11) it is parallel with the optic axis that the receiver (12) is oriented such that them or in angle value less than under 10 ° of acute angle
Intersection.
9. it is according to claim 8 for vehicle (5) mist detection detection device (1), wherein the transmitter (11) and
The receiver (12) is oriented such that their optic axis is parallel or intersects in the case where angle value is less than 5 ° of acute angle.
10. the detection device (1) according to claim 9 for the detection of vehicle (5) mist, wherein the transmitter (11)
It is parallel with the optic axis that the receiver (12) is oriented such that them or intersect in the case where angle value is less than 3 ° of acute angle.
11. the detection device (1) according to claim 8 for the detection of vehicle (5) mist, wherein the transmitter (11)
It is oriented such that their optic axis in the region of transmitter (11) and receiver (12) with the receiver (12)
With the interval for being less than 10cm.
12. the detection device (1) according to claim 11 for the detection of vehicle (5) mist, wherein the transmitter (11)
It is oriented such that their optic axis in the region of transmitter (11) and receiver (12) with the receiver (12)
With the interval for being less than 5cm.
13. the detection device (1) according to claim 12 for the detection of vehicle (5) mist, wherein the transmitter (11)
It is oriented such that their optic axis in the region of transmitter (11) and receiver (12) with the receiver (12)
With the interval for being less than 3cm.
14. the detection device (1) according to any one of claim 8-13 for the detection of vehicle (5) mist, wherein described
Transmitter (11) issues transmission signal, the time of integration of the receiver (12) within the time of integration of the receiver (12)
Depending on speed.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015112103.4 | 2015-07-24 | ||
| DE102015112103.4A DE102015112103A1 (en) | 2015-07-24 | 2015-07-24 | Detection device for detecting fog for a motor vehicle |
| PCT/DE2016/000283 WO2017016533A1 (en) | 2015-07-24 | 2016-07-22 | Detection device for fog detection for a motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209248021U true CN209248021U (en) | 2019-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201690001040.0U Active CN209248021U (en) | 2015-07-24 | 2016-07-22 | The detection device that mist for vehicle detects |
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| Country | Link |
|---|---|
| CN (1) | CN209248021U (en) |
| DE (1) | DE102015112103A1 (en) |
| WO (1) | WO2017016533A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565656A (en) * | 2021-08-12 | 2021-10-29 | 王娟 | Photoelectric fog and dust detector, filter with same and automobile |
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| DE102017102489B3 (en) * | 2017-02-08 | 2018-05-24 | Preh Gmbh | Method for fog detection |
| DE102017111446A1 (en) | 2017-05-24 | 2018-11-29 | HELLA GmbH & Co. KGaA | Device and method for fog detection |
| CN111819473B (en) * | 2018-03-12 | 2022-05-13 | 三菱电机株式会社 | Fog determining device, fog determining method and computer readable storage medium |
| DE102018210885B4 (en) * | 2018-07-03 | 2023-07-20 | Audi Ag | Method and system for initiating a safety precaution of a motor vehicle and motor vehicle |
| US11604345B2 (en) * | 2019-01-28 | 2023-03-14 | Stanley Electric Co., Ltd. | Apparatuses and methods for backscattering elimination via spatial and temporal modulations |
| DE102019132613B4 (en) | 2019-06-03 | 2024-05-29 | Preh Gmbh | Optoelectronic detection device |
| DE102019132241A1 (en) * | 2019-11-28 | 2021-06-02 | Valeo Schalter Und Sensoren Gmbh | Fog detector with an LED emitter as transmitter and receiver |
| DE102019132237A1 (en) * | 2019-11-28 | 2021-06-02 | Valeo Schalter Und Sensoren Gmbh | Fog detector with a multi-LED emitter as transmitter and receiver |
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| JPH0680436B2 (en) * | 1985-07-15 | 1994-10-12 | 株式会社日本自動車部品総合研究所 | Airborne particle detector |
| CA2000049C (en) | 1988-10-05 | 1995-08-22 | Christian Werner | Lidar arrangement for measuring atmospheric turbidities |
| DE3930272A1 (en) * | 1988-10-05 | 1990-04-19 | Impulsphysik Gmbh | LIDAR |
| DE4016973C1 (en) | 1990-02-24 | 1991-06-13 | Eltro Gmbh, Gesellschaft Fuer Strahlungstechnik, 6900 Heidelberg, De | |
| FR2689072A1 (en) * | 1992-03-31 | 1993-10-01 | Valeo Vision | Lighting and / or signaling device used in a foggy situation. |
| DE4324308C1 (en) * | 1993-07-20 | 1994-12-22 | Bayerische Motoren Werke Ag | Process for determining visibility in thick fog and visibility sensor |
| DE59509929D1 (en) | 1994-07-06 | 2002-01-24 | Volkswagen Ag | Method for determining the visibility, in particular for the movement of a motor vehicle |
| DE19629712A1 (en) * | 1996-07-25 | 1998-01-29 | Bosch Gmbh Robert | Method and device for measuring visibility |
| US6587573B1 (en) * | 2000-03-20 | 2003-07-01 | Gentex Corporation | System for controlling exterior vehicle lights |
| DE19717399C2 (en) * | 1997-04-24 | 2001-05-23 | Martin Spies | Device for determining the distance and type of objects and the visibility |
| AU3376199A (en) * | 1998-04-01 | 1999-10-18 | Sentec Corporation | Visibility sensor system |
| KR20190125517A (en) * | 2013-04-11 | 2019-11-06 | 웨이모 엘엘씨 | Methods and systems for detecting weather conditions using vehicle onboard sensors |
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2015
- 2015-07-24 DE DE102015112103.4A patent/DE102015112103A1/en active Pending
-
2016
- 2016-07-22 WO PCT/DE2016/000283 patent/WO2017016533A1/en active Application Filing
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565656A (en) * | 2021-08-12 | 2021-10-29 | 王娟 | Photoelectric fog and dust detector, filter with same and automobile |
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| Publication number | Publication date |
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| DE102015112103A1 (en) | 2017-01-26 |
| WO2017016533A1 (en) | 2017-02-02 |
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