CN209069819U - Rectilinear multi-lane motor vehicle tail gas remote sensing detection system - Google Patents
Rectilinear multi-lane motor vehicle tail gas remote sensing detection system Download PDFInfo
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- 238000001514 detection method Methods 0.000 title claims abstract description 50
- 230000003287 optical effect Effects 0.000 claims abstract description 34
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 58
- 238000012806 monitoring device Methods 0.000 claims description 21
- 238000012545 processing Methods 0.000 claims description 20
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 16
- 239000003546 flue gas Substances 0.000 claims description 16
- 239000006117 anti-reflective coating Substances 0.000 claims description 5
- 238000012360 testing method Methods 0.000 description 13
- 238000009434 installation Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 4
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
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- 230000000149 penetrating effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to rectilinear multi-lane motor vehicle tail gas remote sensing detection systems, mainly include the lower reflection unit on the upper reflection unit and road surface running vehicle road of light emitting unit, light receiving unit, upper pavement surface；Lower reflection unit therein includes at least two down reflection units, and each down reflection unit is arranged on corresponding each runway；Upper reflection unit is disposed adjacent in the optical path of formation with down reflection unit；The utility model can not increase cost, only with a set of detection device when, can be realized the detection of the motor-vehicle tail-gas of multilane.
Description
Technical field
The utility model relates to rectilinear multi-lane motor vehicle tail gas remote sensing detection systems, belong to motor-vehicle tail-gas detection neck
Domain.
Background technique
Due to rising appreciably for China's vehicles number, motor-vehicle tail-gas is on the rise to the negative effect of atmospheric environment.
Vehicles number rises suddenly and sharply caused traffic congestion especially on the road of urban area, has been further exacerbated by the row of motor-vehicle tail-gas
It puts.Therefore, particularly important to the detection of motor-vehicle tail-gas.
It is well known that more and more motor-vehicle tail-gas remote sensing test devices obtain the application of environmental monitoring department, examine
It surveys light and generally includes infrared light and ultraviolet light, the exhaust pollutant of detection includes CO, CO2, nitrogen oxides and particulate matter etc..
Authorization Notice No. is a Chinese utility model patent " the detachable automobile remote exhaust emission survey of " CN203479672U "
Trial assembly is set " disclose a kind of remote vehicle emissions test device, including radiation source, reflecting mirror and detector, radiation source and detection
Device is arranged in portal frame top cross bar, spoke of the reflecting mirror setting below the portal frame on runway ground, in top cross bar
It penetrates source and detector to connect with the reflecting mirror being mounted on immediately below portal frame in V-shape optical path, can be realized the detection of tail gas.But
The test device is only able to achieve the detection of bicycle road tail gas, can not carry out the measurement of multilane Tail gas measuring simultaneously.
Utility model content
The purpose of this utility model is to provide a kind of rectilinear multi-lane motor vehicle tail gas remote sensing detection systems, to solve
Certainly when only with a set of detection device, the problem of multilane Tail gas measuring can not be carried out simultaneously.Meanwhile it additionally providing a kind of vertical
Formula multi-lane motor vehicle tail gas remote sensing detection system can not carry out multilane tail when only with a set of detection device to solve
The problem of gas detects.
To achieve the goals above, the technical solution of the utility model are as follows:
The utility model provides a kind of rectilinear multi-lane motor vehicle tail gas remote sensing detection system, including support frame and cigarette
Gas monitoring device, support frame as described above have cross bar；The flue gas monitoring device is arranged on cross bar, and flue gas monitoring device includes light hair
Penetrate unit, light receiving unit and the lower reflection that corresponding road surface running vehicle road between light emitting unit, light receiving unit is set
Device；It further include the upper reflection unit on the upper pavement surface cross bar being arranged between light emitting unit, light receiving unit；Under described
Reflection unit includes at least two down reflection units, and each down reflection unit is arranged on corresponding each runway；On described
Reflection unit is disposed adjacent in the optical path of formation with down reflection unit.
The utility model has the following beneficial effects: the utility model is by increasing setting for upper reflection unit and lower reflection unit
It sets, the motor vehicle to multilane can only can be realized with a set of flue gas monitoring device under the premise of excessively not increasing cost
Tail gas measuring, widened the detection range of motor-vehicle tail-gas.
Further, in order to reduce light intensity loss, increase signal strength, improve tail gas measuring accuracy, the upper reflection
Device is optical path enhancement device, and the optical path enhancement device is the reflecting mirror for being coated with Anti-reflective coating；The down reflection unit is reflection
Mirror.
It further, further include processing unit in order to carry out the calculating of Tail gas measuring, the processing unit and light emitting list
Member, light receiving unit connection.
Further, in order to more simply, easily carry out Tail gas measuring, the light emitting unit, light receiving unit are distinguished
It is set to the both ends of cross bar above road surface running vehicle road.
The utility model additionally provides a kind of rectilinear multi-lane motor vehicle tail gas remote sensing detection system, including support frame and
Flue gas monitoring device, support frame as described above include cross bar and vertical bar；The flue gas monitoring device includes light emitting unit, light-receiving list
Lower reflection unit in member and road surface running vehicle road；The light emitting unit, light receiving unit are respectively arranged at both sides of the road
It further include the upper reflection unit on the upper pavement surface cross bar being arranged between light emitting unit, light receiving unit on vertical bar, it is described
Lower reflection unit includes at least two down reflection units, and each down reflection unit is arranged on corresponding each runway；It is described
Upper reflection unit is disposed adjacent in the optical path of formation with down reflection unit.
The utility model has the beneficial effects that setting of the utility model by increase upper reflection unit and lower reflection unit,
The tail to the motor vehicle of multilane can only can be realized with a set of flue gas monitoring device under the premise of excessively not increasing cost
Gas detection, has widened the detection range of motor-vehicle tail-gas.
Further, in order to reduce light intensity loss, increase signal strength is conducive to improve measuring accuracy, described anti-
Injection device is optical path enhancement device, and the optical path enhancement device is the reflecting mirror for being coated with Anti-reflective coating；The down reflection unit is anti-
Penetrate mirror.
It further, further include processing unit in order to carry out the calculating of Tail gas measuring, the processing unit and light emitting list
Member, light receiving unit connection.
Detailed description of the invention
Fig. 1 is the structure of the embodiment one of the rectilinear two-way traffic motor-vehicle tail-gas remote sensing detection system of the utility model
Figure；
Fig. 2 is the structure chart of the rectilinear three lanes motor-vehicle tail-gas remote sensing detection system of the utility model；
Fig. 3 is the structure of the embodiment two of the rectilinear two-way traffic motor-vehicle tail-gas remote sensing detection system of the utility model
Figure；
Wherein, 1 be light emitting unit, 2 be the first down reflection unit, 3 be upper reflection unit, 4 be the second down reflection unit,
5 it is light receiving unit, 6 be reflecting mirror, 7 is third down reflection unit.
Specific embodiment
The utility model is described in more detail with reference to the accompanying drawing.
Detection system embodiment one
It is described further by taking rectilinear two-way traffic motor-vehicle tail-gas remote sensing detection system as an example below.
As shown in Figure 1, the motor-vehicle tail-gas remote sensing detection system includes support frame and flue gas monitoring device；Wherein support frame
Including cross bar；Flue gas monitoring device is arranged on cross bar.
Wherein, flue gas monitoring device includes spaced light emitting unit 1, light receiving unit 5, is arranged in light emitting list
The lower reflection unit of the upper reflection unit 3 and road surface running vehicle road on cross bar between member 1, light receiving unit 5, lower reflection therein
Device is two down reflection units of setting, i.e., the first down reflection unit 2 on the first runway and on the second runway
The second down reflection unit 4.
The system for remote exhaust emission measurement of the present embodiment further includes processing unit, processing unit and light emitting unit, light-receiving
Unit connection.
In the utility model when carrying out motor-vehicle tail-gas detection, if motor vehicle is located at the first runway, light emitting unit 1
Detection light is issued, light receiving unit 5, light are injected after the first down reflection unit 2, upper reflection unit 3, the second down reflection unit 4
Receiving unit 5 (does not show that received optical signal transmission to processing unit) in figure, calculated, analyzed, obtain motor vehicle
The content of tail gas.If motor vehicle is located at the second runway, detection process is same as described above.
Flue gas monitoring device in the present embodiment forms " W " type optical path when carrying out Tail gas measuring, no matter realizes motor vehicle
Be the first runway or the second runway when driving, can realize the detection of tail gas.
It should be noted that in rectilinear multi-lane motor vehicle tail gas remote sensing detection system disclosed by the utility model " W "
What type represented is two-way traffic, is not limited to above-mentioned two-way traffic, can be applicable to three lanes (" W+V "), Four-Lane Road (" W+
W ") ...；The specific structure of system for remote exhaust emission measurement i.e. in the utility model is specifically arranged according to number of track-lines, only needs
Meeting the optical path formed is at least one " W " type.For example, Fig. 2 is rectilinear three lanes motor-vehicle tail-gas remote sensing detection system
The structure chart of system, the optical path formed are " W+V " type；The difference of itself and the two-way traffic system in Fig. 1 is only that upper reflection unit
With the setting of the number of down reflection unit, that is, reflecting mirror 6 and third down reflection unit 7 are increased, is realized in three lanes
When any lane has a vehicle to pass through, the Tail gas measuring of vehicle can be realized.
The principle of rectilinear multi-lane motor vehicle tail gas remote sensing detection system in the utility model is to generate for detecting
The light beam of tail gas emits light beam to a lane, light beam during the trace of optical path, successively on the lane reflection,
Upper pavement surface reflection is at least reflected on other lanes again；Final beam is received for tail above road
The analysis of gas；" other lanes " in " at least one other lane " therein can be adjacent lane, be also possible to separately
Lane.Specifically, by taking three lanes as an example, light beam can carry out first reflection in the first runway, later again in the first row
After the upper pavement surface of lane and the second runway carries out the second secondary reflection, third secondary reflection is carried out into the second runway, successively
Analogize, after the upper pavement surface of the second runway and third runway, is reflected into the third line carriageway surfacing, Ji Ke
When vehicle passes through any lane in three lanes, the detection of tail gas can be realized.
Wherein, the number of light beam reflection can also be configured according to actual needs, for example, if not detecting in three lanes
Third runway, then optical path can only be reflected on the road surface of the first runway and the second runway；Certainly, if not detecting
The Vehicular exhaust concentration of two runways, optical path can only be reflected in the first runway and the third line carriageway surfacing, and work people
Member only needs to be adjusted correspondingly optical path can be realized.In above-described embodiment, in order to reduce the optical path of multiple reflections generation
Loss, upper reflection unit 3 are set as optical path enhancement device, realize optical path convergence effect.Wherein optical path enhancement device is to be coated with increasing
The reflecting mirror of anti-film, Anti-reflective coating therein are silica membrane, titanium deoxid film etc..Each of lower reflection unit is lower anti-
Penetrating unit can be reflecting mirror identical with upper reflection unit, be also possible to the reflecting mirror different from upper reflection unit.This implementation
Commercially available reflecting mirror product can be used in lower reflection unit in example, as the right angle in RSD5000 system is displaced reflecting mirror
(CCM), naturally it is also possible to be plane mirror.
In above-described embodiment, light emitting unit 1, the light receiving unit 5 being erected in support frame top cross bar are split
Two side positions of one runway and the second runway.Upper reflection unit 3 is arranged in upper pavement surface light emitting unit 1, light-receiving list
On cross bar between member 5.The setting of first down reflection unit 2 is immediately below the support frame top cross bar on the first runway, under second
The setting of reflector element 4 is immediately below the support frame top cross bar on the second runway.It should be noted that the light in the present embodiment is sent out
The specific location for penetrating unit 1, light receiving unit 5 and upper reflection unit, lower reflection unit needs staff at installation initial stage
Repeatedly test is carried out to determine.Such as, the lower specific installation site of reflection unit can be in advance to the tail gas in vehicle travel process
Position is investigated, and carries out probability analysis, and then determines the specific location of lower reflection unit, meanwhile, upper reflection unit can be with
Testing setup is carried out according to the trace direction of the specific location of lower reflection unit and light beam.
Support frame in the present embodiment is that portal frame can also set up flue gas monitoring device as other embodiments
On the bridge of upper pavement surface, the setting of specific location can be set according to the actual situation, certainly its set up mode in dragon
The mode set up on door frame can also be identical.
Processing unit in above-described embodiment is mounted on the vertical bar of cross bar or portal frame, by the way that electric wire is threaded through cross bar
It is interior, realize the connection with light emitting unit 1, light receiving unit 5.Processing list as other embodiments, in above-described embodiment
Member is also mountable in road side, and specific location can be set according to the actual situation；Processing unit and light emitting unit 1, light
The specific connection type of receiving unit 5 is also possible to wireless communication connection, i.e., connects respectively in processing unit, light emitting unit 1, light
It receives in unit 5 and wireless communication module is set, wireless communication connection can be realized.Wherein processing unit can for CPU processor or
Person's single-chip microcontroller etc. controls equipment.
Light emitting unit 1 in above-described embodiment can be infrared light generating device or ultraviolet light generating device, or
It is while the light generating device of infrared light and ultraviolet light can be generated.Light receiving unit 5 and above-mentioned light in above-described embodiment are sent out
It is corresponding to penetrate unit 1, can be infrared detector and/or ultraviolet detector, is also possible to conventional detection infrared light/ultraviolet
The spectrometer of light.Specifically, the light emitting unit 1 in the utility model and light receiving unit 5 can be used FGA-4100AD's etc.
The commercial product of a whole set of Tail gas measuring.
Further, corresponding optical path compensation parameter can also be set in processing unit according to the number of light path, reflection,
For compensating optical path loss；Its specific optical path compensation parameter can be in advance according to the quantity in lane and environmental factor (as led to
Air quality divided rank is crossed to be tested respectively), the test of the light intensity after successively being reflected, and by corresponding optical path
Compensating parameter is stored in processing unit, is compensated for the analysis of subsequent progress tail gas concentration calculation, is guaranteed tail gas Concentration Testing
Accuracy.
Below by taking two-way traffic as an example, the further explanation of optical path compensation parameter is carried out, as shown in Figure 1, light emitting unit 1 is sent out
Light beam out is successively reflected through the first down reflection unit 2, upper reflection unit 3, the second down reflection unit 4.Installation initial stage,
Staff demarcates, the specific steps of which are as follows:
1) by light emitting unit 1, light receiving unit 5, upper reflection unit 3 and the first down reflection unit 2 and the second lower reflection
After unit 4 is equidistantly installed；
2) inspection of beam attenuation is carried out respectively according to different weather conditions (fair weather, rainy weather, haze weather)
It surveys, ignores other factors, record initial transmissions luminous intensity I0；When carrying out light-intensity test, it is only necessary to detect from light emitting unit 1
Light intensity after primary event, and it is recorded as I1；
3) the first reflection attenuation coefficient under a certain weather conditions (fair weather, rainy weather, haze weather) is calculated:
I1/I0=α；
4) the light intensity I according to the first reflection attenuation coefficient of above-mentioned calculating, after can successively releasing different lane reflectionsn
Relative to initial transmissions luminous intensity I0Attenuation coefficient be In/I0=n α, wherein n=1,2,3 ... n；It that is to say the second runway
Attenuation coefficient be 2 α, the attenuation coefficient of third runway is 3 α, and the attenuation coefficient of the 4th driveway is 4 α ..., Nth row lane
Attenuation coefficient be n α.
So, above-mentioned attenuation coefficient, the practical compensation light intensity I after can successively releasing the reflection in different lanes are based onn’
Are as follows: In’=In/ n α, the light intensity after a certain runway is reflected relative to the lane is In；Then optical path compensation parameter is the first runway
For 1/ α, the second runway is 1/2 α, and third runway is 1/3 α, and the 4th driveway is 1/4 α ..., and Nth row lane is 1/n α.
Based on above-mentioned optical path compensation parameter, specifically, when carrying out Tail gas measuring, it is assumed that motor vehicle is in the second runway
On, then first reflection is used for the purpose of to emit in beam Propagation to the second runway, the case where not detecting tail gas
Under, also decayed, then, the Tail gas measuring on the second runway is necessarily affected, staff can be according to calibration
Different weather situation under the optical path compensation parameter that measures, calculate the loss of strength of first reflection, and by first reflection
The intensity compensation of decaying is to I2In, it can more accurately detect the concentration of tail gas.Assuming that motor vehicle is in third runway
On, then just needing the intensity compensation of the decaying on other two lanes to I3In.
Motor-vehicle tail-gas remote sensing detection in the utility model mainly includes gaseous pollutant and smoke intensity detection.Wherein, originally
Processing unit operation platform in embodiment is industrial personal computer, by being measured in plume using atom or molecular absorption spectrometry
CO2、CO、NO、HC、NH3Pollutant concentration；It is responsible for that data are concluded and handled strong before and after passing through plume using detection light
Measure of the change light obscuration is spent, lingemann blackness is tested according to smoke opacity and image procossing, and then calculate pollutant
Concentration.
Wherein, in order to avoid lower reflection unit collides with motor vehicle, rubs, lower reflection unit needs are arranged below
Position at road surface, specific setting can refer to the Chinese utility model patent " one that Authorization Notice No. is " 205091258 U of CN "
Reflection unit in kind motor vehicle or power ship remote exhaust emission monitoring system " is arranged below the specific setting on road surface.
The system for remote exhaust emission measurement of the utility model further includes monitoring device, and monitoring device is mainly captured by video single
Member, Car license recognition unit, the unit that tests the speed, lane identification unit and environment parament test cell (not shown) structure
At.Monitoring device is connect with processing unit, realizes the real-time monitoring of motor vehicle.
Wherein, for video capturing unit for acquiring motor vehicle vehicle video data, Car license recognition unit is motor-driven for identification
Vehicle information of vehicles, it is ensured that the correctness of vehicle tracking.The unit that tests the speed is used to measure the speed and acceleration of inspection vehicle；Know in lane
Other unit is for judging road conditions if appropriate for progress Vehicular exhaust remote sensing monitoring；Environment parament test cell is for examining
Humidity, temperature, air pressure and wind speed around location point.Above-mentioned monitoring device belongs to the prior art, about specific structure, type
Number, it no longer repeats one by one herein.
Detection system embodiment two
By taking two-way traffic as an example, as shown in figure 3, Fig. 1 in the system for remote exhaust emission measurement and detection system embodiment one is examined
The difference of examining system is only that the difference of the installation site of light emitting unit 1, light receiving unit 5, i.e., the light hair in the present embodiment
It penetrates on the vertical bar of unit 1, the support frame that light receiving unit 5 is mounted on runway two sides, realizes the detection of motor-vehicle tail-gas.
The installation site of light emitting unit 1, light receiving unit 5 in above-described embodiment is not limited to two-way traffic, may be used also
Be three lanes, Four-Lane Road ... lane N etc..
The specific position of light emitting unit 1, light receiving unit 5 and upper reflection unit 3, lower reflection unit in the present embodiment
It sets and staff is needed to carry out repeatedly test determination at installation initial stage.
The detection system with embodiment one such as the specific structure of device, model selection, specific detection process in the present embodiment
Identical, details are not described herein again.
Claims (7)
1. a kind of rectilinear multi-lane motor vehicle tail gas remote sensing detection system, including support frame and flue gas monitoring device, the branch
Support has cross bar；The flue gas monitoring device is arranged on cross bar, and flue gas monitoring device includes light emitting unit, light receiving unit
And the lower reflection unit in corresponding road surface running vehicle road between light emitting unit, light receiving unit is set；It is characterized by: also
Including the upper reflection unit on the upper pavement surface cross bar that is arranged between light emitting unit, light receiving unit；The lower reflection dress
It sets including at least two down reflection units, each down reflection unit is arranged on corresponding each runway；The upper reflection dress
It sets and is disposed adjacent in the optical path of formation with down reflection unit.
2. rectilinear multi-lane motor vehicle tail gas remote sensing detection system according to claim 1, it is characterised in that: on described
Reflection unit is optical path enhancement device, and the optical path enhancement device is the reflecting mirror for being coated with Anti-reflective coating；The down reflection unit is
Reflecting mirror.
3. rectilinear multi-lane motor vehicle tail gas remote sensing detection system according to claim 1, it is characterised in that: further include
Processing unit, the processing unit are connect with light emitting unit, light receiving unit.
4. rectilinear multi-lane motor vehicle tail gas remote sensing detection system according to claim 1, it is characterised in that: the light
Transmitting unit, light receiving unit are respectively arranged at the both ends of cross bar above road surface running vehicle road.
5. a kind of rectilinear multi-lane motor vehicle tail gas remote sensing detection system, including support frame and flue gas monitoring device, the branch
Support includes cross bar and vertical bar；The flue gas monitoring device includes on light emitting unit, light receiving unit and road surface running vehicle road
Lower reflection unit；The light emitting unit, light receiving unit are respectively arranged on the vertical bar of both sides of the road, it is characterised in that:
It further include the upper reflection unit on the upper pavement surface cross bar being arranged between light emitting unit, light receiving unit, the lower reflection
Device includes at least two down reflection units, and each down reflection unit is arranged on corresponding each runway；The upper reflection
Device is disposed adjacent in the optical path of formation with down reflection unit.
6. rectilinear multi-lane motor vehicle tail gas remote sensing detection system according to claim 5, it is characterised in that: on described
Reflection unit is optical path enhancement device, and the optical path enhancement device is the reflecting mirror for being coated with Anti-reflective coating；The down reflection unit is
Reflecting mirror.
7. rectilinear multi-lane motor vehicle tail gas remote sensing detection system according to claim 6, it is characterised in that: further include
Processing unit, the processing unit are connect with light emitting unit, light receiving unit.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211795A (en) * | 2018-10-11 | 2019-01-15 | 北方工业大学 | Vertical multilane motor vehicle exhaust remote sensing detection method and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211795A (en) * | 2018-10-11 | 2019-01-15 | 北方工业大学 | Vertical multilane motor vehicle exhaust remote sensing detection method and system |
| CN109211795B (en) * | 2018-10-11 | 2023-09-29 | 北方工业大学 | Vertical multi-lane motor vehicle tail gas remote sensing detection method and system |
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