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CN110610609A - Traffic information acquisition and processing system based on road monitoring - Google Patents

Traffic information acquisition and processing system based on road monitoring Download PDF

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Publication number
CN110610609A
CN110610609A CN201910783276.4A CN201910783276A CN110610609A CN 110610609 A CN110610609 A CN 110610609A CN 201910783276 A CN201910783276 A CN 201910783276A CN 110610609 A CN110610609 A CN 110610609A
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CN
China
Prior art keywords
support frame
mounting plate
processing unit
camera
central processing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910783276.4A
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Chinese (zh)
Inventor
何兰娜
夏培涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201910783276.4A priority Critical patent/CN110610609A/en
Publication of CN110610609A publication Critical patent/CN110610609A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/0104Measuring and analyzing of parameters relative to traffic conditions
    • G08G1/0108Measuring and analyzing of parameters relative to traffic conditions based on the source of data
    • G08G1/0112Measuring and analyzing of parameters relative to traffic conditions based on the source of data from the vehicle, e.g. floating car data [FCD]
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/017Detecting movement of traffic to be counted or controlled identifying vehicles
    • G08G1/0175Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/04Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/052Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Traffic Control Systems (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

The invention discloses a traffic information acquisition and processing system based on road monitoring, which comprises a mounting plate, a front camera, a rear camera, a panoramic camera, a noise monitoring device, a tail gas monitoring device and a radar speed measuring device, wherein a first support frame is arranged above the mounting plate, and the top end of the first support frame is provided with the front camera; a second support frame is arranged above the mounting plate, and a rear-view camera is arranged at the top end of the second support frame; a third support frame is arranged above the mounting plate, and a panoramic camera is arranged at the top end of the third support frame; the top of mounting panel is equipped with the fourth support frame, and the top of fourth support frame is equipped with noise monitoring devices, is equipped with tail gas monitoring devices on the mounting panel, is equipped with the radar speed sensor on the mounting panel. The invention is provided with a front camera, a rear camera and a panoramic camera to take photos and record the road surface damage condition and road congestion condition of the road.

Description

Traffic information acquisition and processing system based on road monitoring
Technical Field
The invention relates to the technical field of road monitoring, in particular to a traffic information acquisition and processing system based on road monitoring.
Background
With the rapid development of society and economy in China, the number of private cars is increasing, great pressure is brought to urban traffic, and urban traffic congestion and tail gas pollution and noise pollution brought by vehicles become serious day by day. In order to improve traffic order, relieve traffic congestion and reduce environmental pollution caused by traffic, the traffic condition of roads can be improved based on the existing information technology, but the difficulty of the existing technology lies in how to obtain real-time road traffic information. The existing traffic information collection is generally that a monitoring platform is arranged at an intersection with large traffic flow, but because the platform is fixed, the monitoring range is small, each road section cannot be monitored, so that the data is incomplete, more detection platforms need to be built for the road sections with more coverage, and the cost is very high.
Disclosure of Invention
The invention aims to provide a traffic information acquisition and processing system based on road monitoring, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a traffic information acquisition and processing system based on road monitoring comprises a mounting plate, a front camera, a rear camera, a panoramic camera, a noise monitoring device, a tail gas monitoring device, a radar speed measuring device, a display device and an input device, wherein the lower surface of the mounting plate is provided with a plurality of clamping sleeves which are uniformly distributed; a second support frame is arranged above the mounting plate, and a rear-view camera is arranged at the top end of the second support frame; a third support frame is arranged above the mounting plate, a panoramic camera is arranged at the top end of the third support frame, and a second illuminating lamp is arranged above the panoramic camera; a fourth support frame is arranged above the mounting plate, and a noise monitoring device is arranged at the top end of the fourth support frame; be equipped with tail gas monitoring devices on the mounting panel, be equipped with radar speed sensor on the mounting panel.
As a further scheme of the invention: the first support frame is arranged on the upper surface of the mounting plate and close to the left end, the bottom end of the first support frame is fixed on the mounting plate through a bolt, a rotating disc is arranged at the position where the first support frame is connected with the front camera, and a first illuminating lamp is arranged below the front camera.
As a further scheme of the invention: the setting of second support frame is close to the position of right-hand member at the mounting panel upper surface, and second support frame and first support frame bilateral symmetry set up, and the bolt fastening is passed through on the mounting panel in the bottom of second support frame, and the position of taking a photograph the camera and connecting after at the second support frame is equipped with the rolling disc, is equipped with the third light below taking a photograph the camera after.
As a further scheme of the invention: the third support frame is arranged between the first support frame and the second support frame, the bottom end of the third support frame is fixed on the mounting plate through a bolt, the fourth support frame is arranged between the third support frame and the second support frame, and the bottom end of the fourth support frame is fixed on the mounting plate through a bolt.
As a further scheme of the invention: the tail gas monitoring device sets up the position that is close to the leading edge at the mounting panel upper surface, and bolt fastening is passed through to tail gas monitoring device's bottom on the upper surface of mounting panel, and the radar speed sensor sets up the position that is close to the trailing edge at the mounting panel upper surface, and bolt fastening is passed through to radar speed sensor's bottom on the upper surface of mounting panel, and the symmetry sets up around radar speed sensor and the tail gas monitoring device.
As a further scheme of the invention: the tail gas monitoring device is electrically connected with the central processing unit through an AD converter, the noise monitoring device is electrically connected with the central processing unit through the AD converter, and the radar speed measuring device is electrically connected with the central processing unit through the AD converter; the central processing unit is electrically connected with the panoramic camera, the front camera and the rear camera; the central processing unit is electrically connected with the first illuminating lamp, the central processing unit is electrically connected with the second illuminating lamp, and the central processing unit is electrically connected with the third illuminating lamp.
As a further scheme of the invention: the central processing unit is electrically connected with the storage module, the central processing unit is electrically connected with the cloud server through the communication module, the central processing unit is arranged in the vehicle, the display device, the input device and the mainframe box are arranged in the vehicle, and the central processing unit, the storage module and the communication module are all arranged in the mainframe box in the vehicle.
As a further scheme of the invention: the central processing unit comprises an image processing module, a sound processing module and a light control module.
Compared with the prior art, the invention has the beneficial effects that: the road information can be collected in each street lane in a shuttling mode by adopting a vehicle-mounted mode, a plurality of monitoring vehicles can be arranged, each monitoring vehicle is responsible for one area, and compared with a detection platform which is fixedly erected at each intersection and each road section, the road information collection system has the advantages that the generated effects are consistent, and the construction cost and the maintenance cost are lower; the invention is provided with a noise monitoring device for monitoring the noise emitted by vehicles passing through an intersection and judging whether the vehicle noise meets the standard or not, a tail gas monitoring device for monitoring the tail gas emitted by the vehicles passing through the intersection and judging whether the vehicle emission meets the national standard or not, a radar speed measuring device for monitoring the speed of the vehicles passing through the intersection and judging whether the vehicles are in overspeed driving or not, and a front camera and a rear camera for photographing, recording and reporting the license plate number of an illegal vehicle; the front camera, the rear camera and the panoramic camera are arranged to take pictures of road surface damage conditions and road congestion conditions of roads and record the pictures, the data are transmitted to the cloud server of the headquarters through the communication module, and the cloud server can integrate and process the data, repair and process the road surfaces and take measures to reduce the road bearing pressure of congested road sections.
Drawings
Fig. 1 is a front view of a three-dimensional structure of a traffic information collecting and processing system based on road monitoring.
Fig. 2 is a rear view of a three-dimensional structure of a traffic information collecting and processing system based on road monitoring.
Fig. 3 is a bottom view of a three-dimensional structure of a traffic information collecting and processing system based on road monitoring.
Fig. 4 is a schematic perspective view of an input device and an output device in a traffic information collecting and processing system based on road monitoring.
Fig. 5 is an installation diagram of a traffic information collecting and processing system based on road monitoring.
Fig. 6 is a system block diagram of a traffic information collecting and processing system based on road monitoring.
Fig. 7 is a schematic diagram of the components of a central processing unit of a traffic information collecting and processing system based on road monitoring.
In the figure: 1. mounting a plate; 2. a clamping sleeve; 3. a first support frame; 4. a front camera; 5. a second support frame; 6. a back-lighting camera; 7. a third support frame; 8. a panoramic camera; 9. a fourth support frame; 10. a noise monitoring device; 11. an exhaust gas monitoring device; 12. a radar speed measuring device; 13. a first illumination lamp; 14. a second illumination lamp; 15. a third lighting lamp; 16. a display device; 17. an input device; 18. an AD converter; 19. a communication module; 20. a central processing unit; 201. an image processing module; 202. a sound processing module; 203. a light control module; 21. a storage module; 22. and (4) a cloud server.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1-4, a traffic information collecting and processing system based on road monitoring comprises a mounting plate 1, a front camera 4, a rear camera 6, a panoramic camera 8, a noise monitoring device 10, a tail gas monitoring device 11, a radar speed measuring device 12, a display device 16 and an input device 17, wherein the lower surface of the mounting plate 1 is provided with a plurality of clamping sleeves 2 which are uniformly distributed, the mounting plate 1 can be mounted on a carrier rack on the roof of an automobile through the clamping sleeves 2, a first support frame 3 is arranged above the mounting plate 1, the first support frame 3 is arranged on the upper surface of the mounting plate 1 near the left end, the bottom end of the first support frame 3 is fixed on the mounting plate 1 through bolts, the top end of the first support frame 3 is provided with the front camera 4, a rotating disc is arranged at the position where the first support frame 3 is connected with the front camera 4, the front camera 4 can rotate in the range of 0-180 degrees at the top end of the first support frame 3, a first illuminating lamp 13 is arranged below the front camera 4, and the first illuminating lamp 13 can rotate along with the front camera 4.
The top of mounting panel 1 is equipped with second support frame 5, the setting of second support frame 5 is close to the position of right-hand member at 1 upper surface of mounting panel, second support frame 5 sets up with 3 bilateral symmetry of first support frame, the bolt fastening is passed through on mounting panel 1 in the bottom of second support frame 5, the top of second support frame 5 is equipped with back and shines camera 6, be equipped with the rolling disc in the position that second support frame 5 and back shine camera 6 are connected, back shine camera 6 can be at the top of second support frame 5 at 0-180 within range internal rotation, the below of back shining camera 6 is equipped with third light 15, third light 15 can rotate along with back shining camera 6.
A third support frame 7 is arranged above the mounting plate 1, the third support frame 7 is arranged between the first support frame 3 and the second support frame 5, the bottom end of the third support frame 7 is fixed on the mounting plate 1 through a bolt, a panoramic camera 8 is arranged at the top end of the third support frame 7, and a second illuminating lamp 14 is arranged above the panoramic camera 8; the top of mounting panel 1 is equipped with fourth support frame 9, and fourth support frame 9 sets up between third support frame 7 and second support frame 5, and the bolt fastening is passed through on mounting panel 1 in the bottom of fourth support frame 9, and the top of fourth support frame 9 is equipped with noise monitoring device 10.
Be equipped with tail gas monitoring devices 11 on mounting panel 1, tail gas monitoring devices 11 set up the position that is close to the leading edge at 1 upper surface of mounting panel, the bolt fastening is passed through to tail gas monitoring devices 11's bottom at 1 upper surface of mounting panel, be equipped with radar speed sensor 12 on mounting panel 1, radar speed sensor 12 sets up the position that is close to the trailing edge at 1 upper surface of mounting panel, the bolt fastening is passed through to radar speed sensor 12's bottom at 1 upper surface of mounting panel, the symmetry sets up around radar speed sensor 12 and the tail gas monitoring devices 11.
The tail gas monitoring device 11 is electrically connected with the central processing unit 20 through the AD converter 18, the noise monitoring device 10 is electrically connected with the central processing unit 20 through the AD converter 18, and the radar speed measuring device 12 is electrically connected with the central processing unit 20 through the AD converter 18; the central processing unit 20 is electrically connected with the panoramic camera 8, the central processing unit 20 is electrically connected with the front camera 4, and the central processing unit 20 is electrically connected with the rear camera 6; the central processing unit 20 is electrically connected to the first illuminating lamp 13, the central processing unit 20 is electrically connected to the second illuminating lamp 14, and the central processing unit 20 is electrically connected to the third illuminating lamp 15.
The central processing unit 20 is electrically connected with the storage module 21, the central processing unit 20 is electrically connected with the cloud server 22 through the communication module 19, the central processing unit 20 is arranged in the vehicle, the display device 16, the input device 17 and the mainframe box are arranged in the vehicle, the central processing unit 20, the storage module 21 and the communication module 19 are all arranged in the mainframe box in the vehicle, the input device 17 can be used for controlling the intelligent vehicle, and the display device 16 can be used for observing the current working condition and real-time data of the intelligent vehicle.
As shown in fig. 7, the central processing unit 20 includes an image processing module 201, a sound processing module 202, and a light control module 203, wherein the image processing module 201 is used for processing and storing photos and videos taken by the front camera 4, the rear camera 6, and the panoramic camera 8, the sound processing module 202 is used for analyzing and processing noise recorded by the noise monitoring device 10, and the light control module 203 is used for controlling the first illumination lamp 13, the second illumination lamp 14, and the third illumination lamp 15.
In the using process of the invention, a user installs the mounting plate 1 on a carrier of the roof through the clamping sleeve 2, installs the input device 17, the display device 16 and the main case in a carriage, and one person is responsible for driving the vehicle and stops the vehicle at a road junction with large traffic flow, and more than one person is needed to operate the invention; the noise monitoring device 10 can monitor the noise emitted by the vehicles passing through the intersection, judge whether the vehicle noise meets the standard or not, track and photograph the noise source vehicles with decibels exceeding the specified value through the front camera 4 or the rear camera 6, record the license plate numbers of the vehicles and make penalties; the tail gas monitoring device 11 can monitor tail gas emitted by vehicles passing through the intersection, judge whether the emission of the vehicles meets the national standard, track and photograph the vehicles with the emission exceeding the standard through the front camera 4 or the rear camera 6, record license plate numbers of the vehicles and make punishment; the radar speed measuring device 12 can monitor the speed of the vehicle passing through the intersection, judge whether to go overspeed, track and shoot the vehicle going overspeed through the front camera 4 or the back camera 6, record the license plate number and punish the license plate number.
The working personnel control the front camera 4, the rear camera 6 and the panoramic camera 8 through the input equipment 17 to take pictures and record road surface damage conditions and road congestion conditions of the road, and transmit the data to the cloud server 22 of the headquarters through the communication module 19, the cloud server 22 integrates and processes the data, and performs maintenance processing on the road surface, and takes measures to reduce the road bearing pressure of the congested road section; the invention can use a plurality of monitoring vehicles, each monitoring vehicle carries one invention, each monitoring vehicle is responsible for different areas in a city to acquire road information of each road section in the area, the invention on each monitoring vehicle transmits data to the cloud server 22, and the cloud server 22 improves the traffic condition of the whole city by integrating and processing the data of each area.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims (8)

1. A traffic information acquisition and processing system based on road monitoring comprises a mounting plate (1), a front camera (4), a rear camera (6), a panoramic camera (8), a noise monitoring device (10), a tail gas monitoring device (11), a radar speed measuring device (12), a display device (16) and an input device (17), and is characterized in that a plurality of clamping sleeves (2) are uniformly distributed on the lower surface of the mounting plate (1), a first support frame (3) is arranged above the mounting plate (1), and the front camera (4) is arranged at the top end of the first support frame (3); a second support frame (5) is arranged above the mounting plate (1), and a back-lighting camera (6) is arranged at the top end of the second support frame (5); a third support frame (7) is arranged above the mounting plate (1), a panoramic camera (8) is arranged at the top end of the third support frame (7), and a second illuminating lamp (14) is arranged above the panoramic camera (8); a fourth support frame (9) is arranged above the mounting plate (1), and a noise monitoring device (10) is arranged at the top end of the fourth support frame (9); be equipped with tail gas monitoring devices (11) on mounting panel (1), be equipped with radar speed sensor (12) on mounting panel (1).
2. The traffic information acquisition and processing system based on road monitoring as claimed in claim 1, wherein the first support frame (3) is arranged on the upper surface of the mounting plate (1) near the left end, the bottom end of the first support frame (3) is fixed on the mounting plate (1) through a bolt, a rotating disc is arranged at the position where the first support frame (3) is connected with the front camera (4), and a first illuminating lamp (13) is arranged below the front camera (4).
3. The traffic information acquisition and processing system based on road monitoring as claimed in claim 1, wherein the second support frame (5) is arranged at a position on the upper surface of the mounting plate (1) close to the right end, the second support frame (5) and the first support frame (3) are arranged in bilateral symmetry, the bottom end of the second support frame (5) is fixed on the mounting plate (1) through bolts, a rotating disc is arranged at a position where the second support frame (5) and the rear camera (6) are connected, and a third illuminating lamp (15) is arranged below the rear camera (6).
4. The traffic information acquisition and processing system based on road monitoring as claimed in claim 1, wherein the third support frame (7) is arranged between the first support frame (3) and the second support frame (5), the bottom end of the third support frame (7) is fixed on the mounting plate (1) through a bolt, the fourth support frame (9) is arranged between the third support frame (7) and the second support frame (5), and the bottom end of the fourth support frame (9) is fixed on the mounting plate (1) through a bolt.
5. The traffic information collecting and processing system based on road monitoring is characterized in that the tail gas monitoring device (11) is arranged on the upper surface of the mounting plate (1) close to the front edge, the bottom end of the tail gas monitoring device (11) is fixed on the upper surface of the mounting plate (1) through a bolt, the radar speed measuring device (12) is arranged on the upper surface of the mounting plate (1) close to the rear edge, the bottom end of the radar speed measuring device (12) is fixed on the upper surface of the mounting plate (1) through a bolt, and the radar speed measuring device (12) and the tail gas monitoring device (11) are symmetrically arranged in the front and back direction.
6. The traffic information collecting and processing system based on road monitoring as claimed in claim 1, wherein the exhaust gas monitoring device (11) is electrically connected with the central processing unit (20) through an AD converter (18), the noise monitoring device (10) is electrically connected with the central processing unit (20) through the AD converter (18), and the radar speed measuring device (12) is electrically connected with the central processing unit (20) through the AD converter (18); the central processing unit (20) is electrically connected with the panoramic camera (8), the central processing unit (20) is electrically connected with the front camera (4), and the central processing unit (20) is electrically connected with the rear camera (6); the central processing unit (20) is electrically connected with the first illuminating lamp (13), the central processing unit (20) is electrically connected with the second illuminating lamp (14), and the central processing unit (20) is electrically connected with the third illuminating lamp (15).
7. The traffic information collecting and processing system based on road monitoring as claimed in claim 6, wherein the central processing unit (20) is electrically connected with the storage module (21), the central processing unit (20) is electrically connected with the cloud server (22) through the communication module (19), the central processing unit (20) is arranged in the vehicle, the vehicle is internally provided with the display device (16), the input device (17) and the mainframe box, and the central processing unit (20), the storage module (21) and the communication module (19) are all arranged in the mainframe box in the vehicle.
8. The traffic information collecting and processing system based on road monitoring as claimed in claim 6, wherein the central processor (20) comprises an image processing module (201), a sound processing module (202) and a light control module (203).
CN201910783276.4A 2019-08-23 2019-08-23 Traffic information acquisition and processing system based on road monitoring Pending CN110610609A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910783276.4A CN110610609A (en) 2019-08-23 2019-08-23 Traffic information acquisition and processing system based on road monitoring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910783276.4A CN110610609A (en) 2019-08-23 2019-08-23 Traffic information acquisition and processing system based on road monitoring

Publications (1)

Publication Number Publication Date
CN110610609A true CN110610609A (en) 2019-12-24

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CN201910783276.4A Pending CN110610609A (en) 2019-08-23 2019-08-23 Traffic information acquisition and processing system based on road monitoring

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CN (1) CN110610609A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111896943A (en) * 2020-06-19 2020-11-06 杭州恒领科技有限公司 Car networking data acquisition system based on embedded software secondary development

Citations (4)

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Publication number Priority date Publication date Assignee Title
US20070008183A1 (en) * 2005-07-06 2007-01-11 Levi Yeshua R Method, system and device for detecting and reporting traffic law violations
CN106530747A (en) * 2016-11-01 2017-03-22 公安部交通管理科学研究所 Novel vehicle-mounted evidence collection system and method
CN207481743U (en) * 2017-11-15 2018-06-12 江西江铃汽车集团改装车股份有限公司 Tail gas monitoring car
CN208254543U (en) * 2018-06-15 2018-12-18 四川瞭望环保科技有限公司 A kind of vehicular fugitive dust noise monitoring device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070008183A1 (en) * 2005-07-06 2007-01-11 Levi Yeshua R Method, system and device for detecting and reporting traffic law violations
CN106530747A (en) * 2016-11-01 2017-03-22 公安部交通管理科学研究所 Novel vehicle-mounted evidence collection system and method
CN207481743U (en) * 2017-11-15 2018-06-12 江西江铃汽车集团改装车股份有限公司 Tail gas monitoring car
CN208254543U (en) * 2018-06-15 2018-12-18 四川瞭望环保科技有限公司 A kind of vehicular fugitive dust noise monitoring device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111896943A (en) * 2020-06-19 2020-11-06 杭州恒领科技有限公司 Car networking data acquisition system based on embedded software secondary development

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Application publication date: 20191224

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