CN112284839B - Automobile exhaust monitoring device and method for bidirectional lane - Google Patents
Automobile exhaust monitoring device and method for bidirectional lane Download PDFInfo
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- CN112284839B CN112284839B CN202011160834.0A CN202011160834A CN112284839B CN 112284839 B CN112284839 B CN 112284839B CN 202011160834 A CN202011160834 A CN 202011160834A CN 112284839 B CN112284839 B CN 112284839B
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Abstract
The invention provides an automobile exhaust monitoring device and a monitoring method for a bidirectional lane, wherein the device comprises an air collecting mechanism, an air speed sensor and an exhaust detector, wherein the air collecting mechanism comprises a mounting seat, a rotary lifting assembly and an air suction assembly, and the rotary lifting assembly comprises a driving part and a lifting part which are connected; according to the invention, the air suction pipe is arranged on the rotating frame, and the rotating frame is in meshed connection with the driving pinion through the driven bull gear, so that the air suction pipe can rotate within a certain range, the air suction range of the air suction pipe is enlarged, and the problem of large monitoring error caused by the fact that the air suction pipe only absorbs air in a fixed direction is avoided; furthermore, the mode that the wind speed sensor is arranged on the mounting seat is adopted, when the measured value of the wind speed sensor is larger than the preset wind speed threshold value, the gas collecting mechanism cannot be started, and the problems that when the wind speed is too high, the monitoring device cannot carry out effective monitoring due to the fact that tail gas flows fast, and the monitoring device is caused to carry out invalid operation and energy waste are solved.
Description
Technical Field
The invention relates to the technical field of automobile exhaust monitoring, in particular to an automobile exhaust monitoring device and method for a bidirectional lane.
Background
With the improvement of living standard of people, more and more families start to buy family cars, the number of private cars in China starts to increase greatly, and serious environmental problems are brought along with the increase of the living standard of people. The exhaust gas discharged in the driving process of the automobile seriously pollutes the air, and although China has strict control standards for the exhaust gas discharge of the automobile, the automobile exhaust gas emission control system has little effect because of numerous automobiles. Especially, when the traffic flow of a certain road section is large, the air around the road section is seriously polluted by the automobile exhaust; therefore, it is necessary to realize the current limiting adjustment of road vehicles by monitoring the tail gas of the road, for example, in the tail gas monitoring device and the monitoring method of road vehicles of patent application No. 201711072141.4, the tail gas detector is disposed on the lifting mechanism, and the monitoring device is disposed on the driving road surface of the vehicle, however, on one hand, the tail gas is not completely settled on the road surface due to natural wind and vehicle body wind, on the other hand, the road surface will be damaged due to the structure of holes and the like formed on the road surface, so that the practicability of the device is not strong, and the device also easily detects the instantaneous tail gas discharged from the tail gas pipe of the vehicle, thereby causing the problem of great error in the detection result.
Disclosure of Invention
The invention aims to provide an automobile exhaust monitoring device and an automobile exhaust monitoring method for a bidirectional lane, which have high monitoring precision and good applicability, aiming at the defects and the defects of the prior art.
In order to achieve the purpose, the invention provides the following scheme: the invention provides an automobile exhaust monitoring device for a bidirectional lane, which comprises an air collecting mechanism, an air speed sensor and an exhaust detector, wherein the air collecting mechanism comprises a mounting seat, and a rotary lifting assembly and an air suction assembly which are arranged on the mounting seat and used in a matched manner, the rotary lifting assembly comprises a driving part and a lifting part which are connected, the driving part comprises a driving motor, a vertical lead screw, a lead screw nut and a driving pinion which are sequentially connected, the lifting part comprises a lifting shell, a first air suction unit and a second air suction unit, a through hole for the vertical lead screw to pass through is formed in the lifting shell, the lifting shell is rotatably connected with the lead screw nut, a strip-shaped air inlet is formed in the lifting shell, and the first air suction unit and the second air suction unit respectively comprise a rotating frame, a driven large gear, an air suction pipe, The automobile exhaust gas detection device comprises a gas suction pump and a gas storage cavity, wherein the rotating frame is connected with the lifting shell, a driven large gear meshed with the driving small gear is arranged at the end part of the rotating frame, the gas suction pipe is fixedly connected with the rotating frame, in the rotating process of the gas suction pipe, the gas inlet end of the gas suction pipe extends out of the strip-shaped gas inlet, the gas outlet end of the gas suction pipe is communicated with the gas storage cavity through the gas suction pump, the gas storage cavity is respectively communicated with the corresponding exhaust gas detectors, the data output end of the exhaust gas detectors is connected with the data receiving end of a data collector, and the data collector transmits collected automobile exhaust gas data to a data analysis system through a data transmitter for analysis; the wind speed sensor is arranged on the mounting seat, when the measured value of the wind speed sensor is larger than a preset wind speed threshold value, the gas collecting mechanism cannot be started, and when the measured value of the wind speed sensor is smaller than the preset wind speed threshold value, the gas collecting mechanism is started at intervals.
Preferably, the monitoring system further comprises a feedback verification mechanism, wherein the feedback verification mechanism comprises a camera unit, when the tail gas value detected by the tail gas detector is greater than a preset tail gas threshold value, the camera unit is started, the camera unit takes pictures of corresponding road conditions from a plurality of angles, and when the number of vehicles in the images is greater than a preset number, the traffic department judges to implement traffic flow regulation on the monitored road section according to the analysis result of the data analysis system and the images of the camera unit.
Preferably, the rain-proof device further comprises a raindrop sensor, the raindrop sensor is arranged on the mounting seat, and when the raindrop sensor detects that the rainfall is greater than a preset rainfall threshold value, the gas collection mechanism cannot be started.
Preferably, the lifting shell is connected with the mounting base through a plurality of telescopic rods, each telescopic rod comprises a fixed rod and a movable rod which are sleeved with each other, the fixed rods are arranged on the mounting base, and the movable rods are arranged on the lifting shell.
Preferably, the gas storage cavity is of a compressible structure, one end of the gas storage cavity is fixed to the mounting seat, the other end of the gas storage cavity is connected with the lifting shell, and a check valve for discharging gas is arranged on the gas storage cavity.
Preferably, the lifting shell is a spherical structure formed by splicing two hemispherical shells, the strip-shaped air inlet is an arc-shaped air inlet arranged on the spherical structure, and the arc-shaped air inlet is positioned on a lower hemispherical shell of the spherical structure.
Preferably, the spherical structure through rotating-structure with lead screw nut is connected, rotating-structure is in including setting up last hemisphere casing and lower hemisphere casing's last rotating ring and lower rotating ring and setting respectively lead screw nut upper and lower surface and with go up the rotating ring with lower rotating ring assorted is gone up and is rotated sunkenly and down rotates sunkenly.
Preferably, the mounting seat is of a hollow structure, and the driving motor and the tail gas detector are both mounted in the mounting seat.
The invention also provides a monitoring method applying the automobile exhaust monitoring device for the bidirectional lane, which comprises the following steps,
preparation work: detecting the current wind speed through a wind speed sensor, detecting the current rainfall through a raindrop sensor, and judging whether a gas collection mechanism can be started or not; if so, immediately carrying out the next step, and simultaneously continuing to detect the wind speed and the rainfall, if not, continuing to detect the wind speed and the rainfall until the gas collection mechanism is judged to be started, and immediately carrying out the next step;
tail gas monitoring work: under the condition that the gas collection mechanism can be started, when tail gas monitoring is continuously carried out, the two tail gas monitoring intervals are the same or different preset time values; each tail gas monitoring work comprises the following contents: the device comprises a vertical lead screw, a lead screw nut, a lifting shell, a rotating frame and an air suction pipe, wherein the rotating frame and the air suction pipe are directly or indirectly connected with the lifting shell and are driven to move up and down by a driving motor, a driving pinion on the lead screw nut drives driven large gears on two sides to rotate, the driven large gears drive the rotating frame and the air suction pipe fixed on the rotating frame to rotate, an air suction pump sucks outside air into an air storage cavity in the rotating process of the air suction pipe, a tail gas detector is started to detect tail gas of gas in the air storage cavity while the air suction pump works, the data output end of the tail gas detector is connected with the data receiving end of a data collector, and the data collector transmits collected automobile tail gas data to a data analysis system for analysis through a data transmitter; the air suction pipe moves from one side of the strip-shaped air inlet to the other side of the strip-shaped air inlet and moves back to one side of the strip-shaped air inlet from the other side of the strip-shaped air inlet, and a primary air collection process is completed;
after the data analysis system analyzes the tail gas data, if the tail gas data is larger than a preset tail gas threshold value, the tail gas data and an analysis result are filed, and meanwhile, a traffic department judges to implement traffic flow regulation on a monitored road section according to the analysis result of the data analysis system; and if the tail gas data is smaller than a preset tail gas threshold value, only archiving the tail gas data and the analysis result.
Preferably, the monitoring system further comprises a feedback verification mechanism, wherein the feedback verification mechanism comprises a camera unit, when the tail gas value detected by the tail gas detector is greater than a preset tail gas threshold value, the camera unit is started, the camera unit takes pictures of corresponding road conditions at a plurality of angles, when the number of vehicles in the images is greater than a preset number, the camera data and the number of the vehicles are filed, and meanwhile, a traffic department judges to implement traffic flow regulation on the monitoring road section according to the analysis result of the data analysis system and the images of the camera unit.
Compared with the prior art, the invention has the following beneficial effects:
1. the automobile exhaust monitoring device for the bidirectional lane provided by the invention adopts the mode that the lifting shell is relatively provided with the first air suction unit and the second air suction unit which respectively correspond to the lanes in one direction, so that the monitoring device can simultaneously monitor the exhaust condition in the bidirectional lane, and the monitoring performance of the monitoring device is improved; furthermore, the air suction pipe is arranged on the rotating frame, and the rotating frame is in meshed connection with the driving pinion through the driven large gear, so that the air suction pipe can rotate within a certain range, the air suction range of the air suction pipe is enlarged, and the problem of large monitoring error caused by the fact that the air suction pipe only absorbs air in a fixed direction is avoided; furthermore, the mode that the wind speed sensor is arranged on the mounting seat is adopted, when the measured value of the wind speed sensor is larger than the preset wind speed threshold value, the gas collecting mechanism cannot be started, and the problems that when the wind speed is too high, the monitoring device cannot carry out effective monitoring due to the fact that tail gas flows fast, and the monitoring device is caused to carry out invalid operation and energy waste are solved.
2. The automobile exhaust monitoring device for the bidirectional lane adopts a mode of arranging the feedback verification mechanism, obtains an analysis result that the exhaust value is larger than the preset exhaust threshold value by the data analysis system, and carries out image verification, thereby avoiding the problem that the traffic flow regulation is wrongly implemented by a traffic department due to special conditions.
3. The automobile exhaust monitoring device for the bidirectional lane adopts the mode of arranging the raindrop sensor, when the measured value of the raindrop sensor is larger than the preset rainfall threshold value, the gas collecting mechanism cannot be started, and the problems that the monitoring device cannot carry out effective monitoring due to the fact that rainwater stops exhaust flowing when the rainfall is too large, the monitoring device carries out invalid operation and energy waste are avoided.
4. The automobile exhaust monitoring device for the bidirectional lane adopts the mode that the gas storage cavity is set to be of a compressible structure, so that the gas storage cavity can move along with the lifting shell, auxiliary gas suction work is completed in the lifting process, automatic exhaust work is completed in the descending process, and the gas suction and exhaust work of the device is convenient to realize.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic diagram of the overall structure of an automobile exhaust monitoring device for a bidirectional lane according to the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of a portion of the structure of FIG. 1;
FIG. 4 is a partial cross-sectional view of FIG. 3;
the device comprises an air speed sensor 1, a tail gas detector 2, a mounting seat 3, a driving motor 4, a vertical lead screw 5, a lead screw nut 6, a driving pinion 7, a lifting shell 8, a strip-shaped air inlet 9, a rotating frame 10, a driven bull gear 11, an air suction pipe 12, an air suction pump 13, an air storage cavity 14, a camera unit 15, a raindrop sensor 16 and a one-way valve 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide an automobile exhaust monitoring device and an automobile exhaust monitoring method for a bidirectional lane, which have high monitoring precision and good applicability, aiming at the defects and the defects of the prior art.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.
As shown in fig. 1-4, the invention provides an automobile exhaust monitoring device for a bidirectional lane, which comprises an air collecting mechanism, an air velocity sensor 1 and an exhaust detector 2, wherein the air collecting mechanism comprises a mounting base 3, and a rotary lifting assembly and an air suction assembly which are arranged on the mounting base 3 and used in a matching manner, the rotary lifting assembly comprises a driving part and a lifting part which are connected, the driving part comprises a driving motor 4, a vertical lead screw 5, a lead screw nut 6 and a driving pinion 7 which are sequentially connected, the lifting part comprises a lifting shell 8, a first air suction unit and a second air suction unit, a through hole for the vertical lead screw 5 to pass through is formed in the lifting shell 8, the lifting shell 8 is rotatably connected with the lead screw nut 6, a strip-shaped air inlet 9 is formed in the lifting shell 8, and the first air suction unit and the second air suction unit respectively comprise a rotating frame 10, a driven large gear 11, The automobile exhaust gas detection device comprises an air suction pipe 12, an air suction pump 13 and an air storage cavity 14, wherein a rotating frame 10 is connected with a lifting shell 8, a driven large gear 11 meshed with a driving small gear 7 is arranged at the end part of the rotating frame 10, the air suction pipe 12 is fixedly connected with the rotating frame 10, in the rotating process of the air suction pipe 12, the air inlet end of the air suction pipe 12 extends out of a strip-shaped air inlet 9, the air outlet end of the air suction pipe 12 is communicated with air storage cavities 14 through the air suction pump 13, the air storage cavities 14 are respectively communicated with corresponding exhaust gas detectors 2, the data output end of the exhaust gas detectors 2 is connected with the data receiving end of a data collector, and the data collector transmits collected automobile exhaust gas data to a data analysis system for analysis through a data transmitter; the air speed sensor 1 is arranged on the mounting base 3, when the measured value of the air speed sensor 1 is larger than a preset air speed threshold value, the air collecting mechanism cannot be started, when the measured value of the air speed sensor 1 is smaller than the preset air speed threshold value, the preset air speed threshold value is preferably 3-4 m/s, and the air collecting mechanism is started at intervals, such as one hour interval, or corresponding interval time is adjusted according to traffic flow change conditions of working days and non-working days. Wherein, the driving motor 4, the suction pump 13, the wind speed sensor 1, the tail gas detector 2 and other electric gasification devices are all structures existing in the prior art, and are not specifically limited, and the model, power and other parameters are selected according to the actual working conditions; the driving pinion 7 rotates for a circle, the driven bull gear 11 only drives the rotating frame 10 to move for a certain angle, for example, 20 degrees, and the driven bull gear 11 can also be an arc rack structure; since the driving pinion 7 and the lifting shell 8 are both connected with the screw nut 6, the screw nut 6 is preferably a self-made piece, and a suitable standard piece can be used as long as the technical purpose of driving the driving pinion 7 to rotate and driving the lifting shell 8 to move up and down together can be achieved; the air inlet end part of the air suction pipe 12 can be arranged on the rotating frame 10 through bonding, clamping connection or other detachable structures, certainly as a deformation structure, an air suction channel for connecting the air suction pipe 12 and sucking air can be directly and fixedly arranged on the rotating frame 10, so that the problem that the connection between the air inlet end part of the air suction pipe 12 and the rotating frame 10 is inconvenient is solved, and when the air suction pipe is used, the air suction pipe 12 and the air suction pipe 12 are directly connected; the strip-shaped air inlet 9 ensures that the air suction pipe 12 can be communicated with an external area with a corresponding angle in real time in the process of rotating the angle, thereby ensuring the air suction effect; the wind speed sensor 1, the camera unit 15 and the raindrop sensor 16 below the wind speed sensor can be arranged on the mounting base 3 or on other external support structures, and only the corresponding functions can be realized; because lift casing 8 and screw nut 6 rotatable coupling, so screw nut 6 can rotate along with vertical lead screw 5, simultaneously because the dead weight of lift casing 8 and the part that links to each other with lift casing 8, so screw nut 6 can carry out elevating movement on vertical lead screw 5, as a deformation form, can get rid of driving pinion 7, driven gear wheel 11, change and install the rotating electrical machines respectively in the both sides of lift casing 8, then be connected the rotating electrical machines respectively with corresponding rotating turret 10, and then drive rotating turret 10 and do corresponding rotation.
In order to reduce errors and improve the accuracy of monitoring results, the invention further comprises a feedback verification mechanism, wherein the feedback verification mechanism comprises a camera unit 15, such as an existing traffic snapshot device, a ccd camera or other camera devices capable of being controlled manually and automatically, when the tail gas value detected by the tail gas detector 2 is greater than a preset tail gas threshold value, the camera unit 15 is started, the camera unit 15 takes pictures of corresponding road conditions at a plurality of angles, for example, takes pictures of unidirectional lanes at intervals of 45 degrees twice, and when the number of vehicles in the images is greater than a preset number, the number of vehicles in the two pictures is greater than 10, the traffic department judges to carry out traffic flow regulation on the monitored road section according to the analysis result of the data analysis system and the images of the camera unit 15; in the invention, a mode of setting a feedback verification mechanism is adopted, an analysis result that the tail gas value is greater than a preset tail gas threshold value is obtained by a data analysis system, and image verification is carried out, so that the problem that a traffic department mistakenly implements traffic flow regulation due to special conditions is avoided.
The rain drop sensor 16 is further included in the invention, the rain drop sensor 16 is arranged on the mounting base 3, when the rain drop sensor 16 detects that the rainfall is larger than the preset rainfall threshold value, the gas collecting mechanism cannot be started, otherwise, the gas collecting mechanism can be started (in the invention, as long as one limiting gas collecting mechanism is started, the gas collecting mechanism cannot be started, namely, the gas collecting mechanism can be normally started only after all limiting starting conditions are removed); adopt the mode that sets up raindrop sensor 16 promptly, when raindrop sensor 16's measured value is greater than preset rainfall threshold value, gas collection mechanism can not start, has avoided so monitoring devices can not carry out effective monitoring because rainwater prevents that tail gas from flowing when the rainfall is too big, leads to monitoring devices to carry out the problem of invalid operation and energy waste.
In order to ensure the smooth lifting of the lifting shell 8 and devices connected with the lifting shell 8, the lifting shell 8 is connected with the mounting base 3 through a plurality of telescopic rods, each telescopic rod comprises a fixed rod and a movable rod which are sleeved with each other, the fixed rods are arranged on the mounting base 3, and the movable rods are arranged on the lifting shell 8; namely, the telescopic rod limits the lifting shell 8 to only move up and down, but not rotate along with the screw nut 6.
As a deformation structure of the telescopic rod, the gas storage cavity 14 is improved correspondingly, in the invention, the gas storage cavity 14 is a compressible structure, such as a telescopic airbag made of plastic and in a bellows structure, one end of the gas storage cavity 14 is fixed on the mounting seat 3, the other end of the gas storage cavity 14 is connected with the lifting shell 8, and the gas storage cavity 14 is provided with a one-way valve 17 for discharging gas; adopt promptly to set up gas storage chamber 14 into the mode of compressible structure for gas storage chamber 14 can be along with lift casing 8 removes, and then accomplishes supplementary work of breathing in at the in-process that rises, accomplishes self-bleeding work at the descending in-process, and the device of being convenient for inhales the realization of exhaust work.
The lifting shell 8 is a spherical structure formed by splicing two hemispherical shells, the strip-shaped air inlet 9 is an arc-shaped air inlet arranged on the spherical structure, and the arc-shaped air inlet is positioned on a lower hemispherical shell of the spherical structure.
As a structural form of the rotatable connection of the lifting shell 8 and the screw nut 6, the spherical structure is connected with the screw nut 6 through a rotating structure, and the rotating structure comprises an upper rotating ring and a lower rotating ring which are respectively arranged on the upper hemispherical shell and the lower hemispherical shell, and an upper rotating dent and a lower rotating dent which are arranged on the upper surface and the lower surface of the screw nut 6 and are matched with the upper rotating ring and the lower rotating ring.
The installation is convenient, and the gravity center of the monitoring device is lowered, so that the stability of the device is enhanced; the mounting base 3 is of a hollow structure, and the driving motor 4 and the tail gas detector 2 are both arranged in the mounting base 3.
The invention also provides a monitoring method applying the automobile exhaust monitoring device for the bidirectional driveway, which comprises the following steps,
preparation work: detecting the current wind speed through the wind speed sensor 1, detecting the current rainfall through the raindrop sensor 16, and judging whether the gas collection mechanism can be started or not; if so, immediately carrying out the next step, and simultaneously continuing to detect the wind speed and the rainfall, otherwise, continuing to detect the wind speed and the rainfall until the gas collection mechanism is judged to be started, and immediately carrying out the next step;
tail gas monitoring work: under the condition that the gas collection mechanism can be started, when tail gas monitoring is continuously carried out, the two tail gas monitoring intervals are the same or different preset time values; each tail gas monitoring work comprises the following contents: the vertical screw 5 is driven to rotate by the driving motor 4, the screw nut 6 on the vertical screw 5 drives the lifting shell 8 and the rotating frame 10 directly or indirectly connected with the lifting shell 8, the air suction pipe 12 carries out lifting motion, meanwhile, the driving pinion 7 on the screw nut 6 drives the driven large gears 11 on two sides to rotate, the driven large gears 11 drive the rotating frame 10 and the air suction pipe 12 fixed on the rotating frame 10 to rotate, the air suction pump 13 sucks outside air into the air storage cavity 14 in the rotating process of the air suction pipe 12, the tail gas detector 2 is started when the air suction pump 13 works, tail gas detection is carried out on gas in the air storage cavity 14, the data output end of the tail gas detector 2 is connected with the data receiving end of the data collector, and the data collector transmits the collected automobile tail gas data to the data analysis system for analysis through the data emitter; the initial position and the end position of the air suction pipe 12 are the same side of a strip-shaped air inlet 9 formed in the lifting shell 8, the air suction pipe 12 moves from one side of the strip-shaped air inlet 9 to the other side and moves back to one side of the strip-shaped air inlet 9 from the other side to complete a gas collection process, the gas collection process is realized by positive and negative rotation of the driving motor 4, the positive and negative rotation can be realized by preset positive rotation time and reverse rotation time, an inductive switch can also be arranged at the strip-shaped air inlet 9, and when the air suction pipe 12 is in place, the driving motor 4 rotates reversely;
after the data analysis system analyzes the tail gas data, if the tail gas data is larger than a preset tail gas threshold value, the tail gas data and an analysis result are filed, and meanwhile, a traffic department judges to implement traffic flow regulation on a monitored road section according to the analysis result of the data analysis system; and if the tail gas data is smaller than a preset tail gas threshold value, only archiving the tail gas data and the analysis result.
The system also comprises a feedback verification mechanism, wherein the feedback verification mechanism comprises a camera unit 15, when the tail gas value detected by the tail gas detector 2 is greater than a preset tail gas threshold value, the camera unit 15 is started, the camera unit 15 takes pictures of corresponding road conditions at a plurality of angles, when the number of vehicles in the images is greater than the preset number, the camera data and the number of the vehicles are filed, and meanwhile, a traffic department judges to implement traffic flow regulation on the monitored road section according to the analysis result of the data analysis system and the images of the camera unit 15.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the foregoing, the description is not to be taken in a limiting sense.
Claims (10)
1. The utility model provides an automobile exhaust monitoring devices for two-way lane which characterized in that: the device comprises a gas collection mechanism, a wind speed sensor and a tail gas detector, wherein the gas collection mechanism comprises a mounting seat, a rotary lifting assembly and a gas suction assembly, the rotary lifting assembly and the gas suction assembly are arranged on the mounting seat and are matched and connected for use, the rotary lifting assembly comprises a driving part and a lifting part which are connected, the driving part comprises a driving motor, a vertical lead screw, a lead screw nut and a driving pinion which are sequentially connected, the lifting part comprises a lifting shell, a first gas suction unit and a second gas suction unit, a through hole for the vertical lead screw to pass through is formed in the lifting shell, the lifting shell is rotatably connected with the lead screw nut, a strip-shaped gas inlet is formed in the lifting shell, the first gas suction unit and the second gas suction unit respectively comprise a rotating frame, a driven large gear, a gas suction pipe, a gas suction pump and a gas storage cavity, and the rotating frame is connected with the lifting shell, the end part of the rotating frame is provided with a driven large gear meshed with the driving small gear, the air suction pipe is fixedly connected with the rotating frame, in the rotating process of the air suction pipe, the air inlet end of the air suction pipe extends out of the strip-shaped air inlet, the air outlet end of the air suction pipe is communicated with the air storage chambers through an air suction pump, the air storage chambers are respectively communicated with the corresponding tail gas detectors, the data output ends of the tail gas detectors are connected with the data receiving ends of the data collectors, and the data collectors transmit the collected automobile tail gas data to a data analysis system for analysis through data transmitters; the wind speed sensor is arranged on the mounting base, when the measurement value of the wind speed sensor is larger than a preset wind speed threshold value, the gas collection mechanism cannot be started, and when the measurement value of the wind speed sensor is smaller than the preset wind speed threshold value, the gas collection mechanism is started at intervals.
2. The vehicle exhaust monitoring device for the bidirectional lane according to claim 1, wherein: the tail gas detection device is characterized by further comprising a feedback verification mechanism, wherein the feedback verification mechanism comprises a camera shooting unit, when the tail gas value detected by the tail gas detector is larger than a preset tail gas threshold value, the camera shooting unit is started, the camera shooting unit shoots corresponding road conditions at a plurality of angles, and when the number of vehicles in an image is larger than a preset number, a traffic department judges to implement traffic flow regulation on a monitored road section according to an analysis result of the data analysis system and the image of the camera shooting unit.
3. The vehicle exhaust monitoring device for the bidirectional lane according to claim 1, wherein: the rain sensor is arranged on the mounting seat, and when the rain sensor detects that the rainfall is greater than a preset rainfall threshold value, the gas collection mechanism cannot be started.
4. The vehicle exhaust monitoring device for the bidirectional lane according to claim 1, wherein: the lifting shell is connected with the mounting seat through a plurality of telescopic rods, each telescopic rod comprises a fixed rod and a movable rod, the fixed rods are sleeved with the fixed rods, and the movable rods are arranged on the lifting shell.
5. The vehicle exhaust monitoring device for the bidirectional lane according to claim 1, wherein: the gas storage cavity is of a compressible structure, one end of the gas storage cavity is fixed on the mounting seat, the other end of the gas storage cavity is connected with the lifting shell, and a check valve for gas discharge is arranged on the gas storage cavity.
6. The automobile exhaust monitoring device for the bidirectional lane according to claim 1 or 5, wherein: the lifting shell is of a spherical structure formed by splicing two hemispherical shells, the strip-shaped air inlet is an arc-shaped air inlet arranged on the spherical structure, and the arc-shaped air inlet is positioned on a lower hemispherical shell of the spherical structure.
7. The vehicle exhaust monitoring device for the bidirectional lane according to claim 6, wherein: spherical structure through rotating-structure with lead screw nut is connected, rotating-structure is in including setting up respectively at last hemisphere casing and lower hemisphere casing last rotating ring and lower rotating ring and setting up about lead screw nut the surface and with go up rotating ring with lower rotating ring assorted is gone up and is rotated sunkenly and rotate sunkenly down.
8. The vehicle exhaust monitoring device for the bidirectional lane according to claim 1, wherein: the mounting seat is of a hollow structure, and the driving motor and the tail gas detector are both mounted in the mounting seat.
9. A method for monitoring vehicle exhaust gas for a bidirectional lane using the vehicle exhaust gas monitoring apparatus for a bidirectional lane according to claim 3, characterized in that: comprises the following steps of (a) carrying out,
preparation work: detecting the current wind speed through a wind speed sensor, detecting the current rainfall through a raindrop sensor, and judging whether a gas collection mechanism can be started or not; if so, immediately carrying out the next step, and simultaneously continuing to detect the wind speed and the rainfall, otherwise, continuing to detect the wind speed and the rainfall until the gas collection mechanism is judged to be started, and immediately carrying out the next step;
tail gas monitoring work: under the condition that the gas collection mechanism can be started, when tail gas monitoring is continuously carried out, the two tail gas monitoring intervals are the same or different preset time values; each tail gas monitoring work comprises the following contents: the device comprises a vertical lead screw, a lead screw nut, a lifting shell, a rotating frame and an air suction pipe, wherein the rotating frame and the air suction pipe are directly or indirectly connected with the lifting shell and are driven to move up and down by a driving motor, a driving pinion on the lead screw nut drives driven large gears on two sides to rotate, the driven large gears drive the rotating frame and the air suction pipe fixed on the rotating frame to rotate, an air suction pump sucks outside air into an air storage cavity in the rotating process of the air suction pipe, a tail gas detector is started to detect tail gas of gas in the air storage cavity while the air suction pump works, the data output end of the tail gas detector is connected with the data receiving end of a data collector, and the data collector transmits collected automobile tail gas data to a data analysis system for analysis through a data transmitter; the air suction pipe moves from one side of the strip-shaped air inlet to the other side of the strip-shaped air inlet and moves back to one side of the strip-shaped air inlet from the other side of the strip-shaped air inlet, and a primary air collection process is completed;
after the data analysis system analyzes the tail gas data, if the tail gas data is larger than a preset tail gas threshold value, the tail gas data and an analysis result are filed, and meanwhile, a traffic department judges to implement traffic flow regulation on a monitored road section according to the analysis result of the data analysis system; and if the tail gas data is smaller than a preset tail gas threshold value, only archiving the tail gas data and the analysis result.
10. The automobile exhaust monitoring method for the bidirectional lane according to claim 9, wherein: the tail gas detection device is characterized by further comprising a feedback verification mechanism, wherein the feedback verification mechanism comprises a camera shooting unit, when the tail gas value detected by the tail gas detector is larger than a preset tail gas threshold value, the camera shooting unit is started, the camera shooting unit shoots corresponding road conditions at a plurality of angles, when the number of vehicles in an image is larger than a preset number, camera shooting data and the number of vehicles are filed, and meanwhile, a traffic department judges to implement traffic flow regulation on a monitoring road section according to an analysis result of the data analysis system and the image of the camera shooting unit.
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