CN111929408A - Closed-loop supervision system for emission detection and maintenance of in-use motor vehicle - Google Patents
Closed-loop supervision system for emission detection and maintenance of in-use motor vehicle Download PDFInfo
- Publication number
- CN111929408A CN111929408A CN202010707695.2A CN202010707695A CN111929408A CN 111929408 A CN111929408 A CN 111929408A CN 202010707695 A CN202010707695 A CN 202010707695A CN 111929408 A CN111929408 A CN 111929408A
- Authority
- CN
- China
- Prior art keywords
- maintenance
- detection
- data
- vehicle
- management module
- 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
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 92
- 238000012423 maintenance Methods 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000007726 management method Methods 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 230000008569 process Effects 0.000 claims abstract description 20
- 238000013523 data management Methods 0.000 claims abstract description 19
- 230000006399 behavior Effects 0.000 claims abstract description 10
- 230000003993 interaction Effects 0.000 claims abstract description 5
- 238000003745 diagnosis Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 238000013524 data verification Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000009916 joint effect Effects 0.000 claims description 2
- 230000004083 survival effect Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 9
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 238000011835 investigation Methods 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0037—NOx
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Food Science & Technology (AREA)
- Biochemistry (AREA)
- Combustion & Propulsion (AREA)
- General Physics & Mathematics (AREA)
- Medicinal Chemistry (AREA)
- Pathology (AREA)
- Computing Systems (AREA)
- Medical Informatics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
The invention provides an emission detection and maintenance closed-loop supervision system for an in-use motor vehicle, which comprises a data transmission module, a detection data management module, a maintenance process management module and a typical fake automatic judgment module, wherein the detection data management module is connected with the typical fake automatic judgment module through the data transmission module, and the maintenance process management module is connected with the maintenance process management module through the data transmission module. The invention provides an effective method for realizing detection and maintenance data sharing interaction and closed-loop management, realizing automatic investigation and judgment of fake making behaviors of a detection station and a maintenance station, standardizing motor vehicle detection and maintenance and reducing the emission of automobile exhaust pollutants by providing an in-use motor vehicle emission detection and maintenance supervision system.
Description
Technical Field
The invention belongs to the field of motor vehicle emission supervision, and particularly relates to an emission detection and maintenance closed-loop supervision system for an in-use motor vehicle.
Background
In recent years, the automobile holding amount in China is continuously and rapidly increased, automobile emission becomes one of important sources of atmospheric environmental pollution, and in order to adapt to the change, the concept of automobile emission reduction in China is also synchronously tightened from the original 'source control' of a new handcart to the control of the handcart in use. The in-use vehicle detection and maintenance (I/M) system is a system for carrying out regular and irregular emission detection and supervision and sampling detection on in-use vehicles and carrying out forced maintenance on vehicles which do not reach the standard so as to enable the vehicles to be in a good running state, thereby reducing pollution emission. The I/M system is implemented in developed countries of the United states and the like as an important means for treating the pollution emission of vehicles in use, a systematic legal and legal system and an implementation and supervision system are formed, and remarkable effects are achieved, wherein HC, CO and NOx of a vehicle in which the I/M system is implemented are respectively reduced by 17%, 28% and 9% by taking the California as an example.
At present, I/M closed-loop supervision is not implemented in most cities in China, detection and maintenance data are not shared smoothly, a comprehensive and mature information management system is not formed aiming at the I/M closed-loop supervision, a good division cooperation mechanism is not formed among supervision departments, the existing management mode cannot automatically check whether the vehicle is falsely checked by adopting computer software, accelerator stepping counterfeiting, forged inspection results and the like, and the problems of excessive vehicle emission and incomplete maintenance are obvious. Therefore, the method for closed-loop supervision of emission detection and maintenance of the motor vehicle is researched, the detection result is found to be fake, and the detection and maintenance of the over-standard emission automobile are effectively promoted.
Disclosure of Invention
In view of the above, the present invention is directed to provide a closed-loop monitoring system for emission detection and maintenance of an in-use motor vehicle, so as to achieve interaction of detection and maintenance data, I/M system organic closed-loop monitoring, automatically troubleshoot problems such as counterfeit detection and maintenance stations, standardize inspection processes, and reduce emission of pollutants in exhaust gas of automobiles.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a closed-loop supervision system for emission detection and maintenance of an in-use motor vehicle comprises a data transmission module, a detection data management module, a maintenance process management module and a typical fake automatic judgment module, wherein the detection data management module is connected with the typical fake automatic judgment module through the data transmission module, and the maintenance process management module is connected with the maintenance process management module through the data transmission module.
Furthermore, the data transmission module is used for utilizing WIFI wireless communication and a data interface of the detection station and a data interface of the maintenance station to be in butt joint and interaction through a data verification system and an identity authentication system, and receiving vehicle emission detection and maintenance data of the detection station and the maintenance station.
Furthermore, the detection data management module is used for storing the detection station vehicle emission detection data transmitted by the data transmission module, survival detection reports and reporting the information of the detected unqualified vehicles to the maintenance process management module.
Furthermore, the maintenance process management module is used for receiving unqualified vehicle information sent by the detection data management module, and after maintenance personnel maintain the unqualified vehicle information, the qualified vehicle maintenance data is stored and uploaded to the data transmission module and stored by the maintenance management module.
Further, the typical fake-making automatic determination module is used for respectively comparing vehicle detection and maintenance data with vehicle public information of a supervision department according to typical emission detection and maintenance fake-making methods such as fake detection results, accelerator-stepping fake-making operations and computer software refreshing, automatically checking and determining possible fake-making behaviors of a detection station and a maintenance station based on database comparison and threshold analysis of data streams, and giving an alarm.
Furthermore, the data transmission module is also connected with the data interface of the detection station and the data interface of the maintenance station in a wireless mode.
Further, the wireless mode includes, but is not limited to, 4G/3G/WIFI.
Furthermore, the data transmission module is connected with the detection data management module in a wireless mode.
Further, the wireless mode includes, but is not limited to, 4G/3G/WIFI. .
Further, the exemplary automatic false determination module is implemented as follows
(1) Whether the VIN of the detected vehicle is consistent with the vehicle public information or not is compared, and if not, whether fake is judged;
(2) by intercepting the diagnosis real-time data stream and the emission real-time data in the vehicle detection process, comparing and finding whether the opening degree of the accelerator acquired by diagnosis meets the requirement, and if the opening degree does not meet the requirement, judging that a false situation exists;
(3) comparing whether the ECU version number of the vehicle is consistent with the public information of the vehicle, and if not, judging that the vehicle is fake;
(4) by analyzing the variation range and the period of the NOx sensor signal, if the difference between the fluctuation of the NOx signal and the actual working condition is larger in the whole test process, judging that the false exists;
(5) and inquiring the condition of the replaceable parts entering and exiting the warehouse through automatic matching, and if no parts exist in the warehouse, judging that the maintenance is false.
Compared with the prior art, the closed-loop supervision system for emission detection and maintenance of the in-use motor vehicle has the following advantages:
the invention provides an effective method for realizing detection and maintenance data sharing interaction and closed-loop management, realizing automatic investigation and judgment of fake making behaviors of a detection station and a maintenance station, standardizing motor vehicle detection and maintenance and reducing the emission of automobile exhaust pollutants by providing an in-use motor vehicle emission detection and maintenance supervision system.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the system of the present invention.
Description of reference numerals:
10: a data transmission module; 20: a detection data management module;
30: a maintenance data management module; 40: a typical fake automatic determination module.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
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.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in FIG. 1, a system for closed-loop emission monitoring and maintenance of an in-use motor vehicle includes a data transmission module 10, a detection data management module 20, a maintenance procedure management module 30, and a typical fraud automatic determination module 40.
The data transmission module 10 receives vehicle emission detection data uploaded by a data interface of the detection station through a self-contained data verification system and an identity authentication system by using WIFI wireless communication, and sends the detection data to the detection data management module 20 and the typical fake-making automatic determination module 40 respectively.
The detection data management module 20 receives and stores the vehicle emission detection data of the detection station, generates a detection report, and reports the vehicles with unqualified emission detection and OBD fault codes to the maintenance management module 30.
After the maintenance management module 30 receives the unqualified vehicle information and the detection data output by the detection data management module, maintenance personnel maintain the vehicle, and after maintenance, the data for vehicle maintenance is transmitted to the maintenance management module 30 and the typical fake-making automatic judgment module through the data transmission module 10 to be stored, so that closed-loop supervision of vehicle detection and maintenance is formed.
After receiving the data of the detection data management module 20 and the maintenance management module 30, the typical fake-making automatic determination module 40 compares the vehicle detection and maintenance data with the vehicle public information of the supervision department, automatically checks and determines the possible fake-making behaviors of the detection station and the maintenance station based on the database comparison and the threshold analysis of the data flow, and gives an alarm, and the main algorithm is as follows:
(1) aiming at the conditions that qualified vehicles and unqualified vehicles are simultaneously detected online and side by side, the tail gas detection sampling pipes are inserted in a crossed mode, and the unqualified vehicles are confused and are in a pass state, whether VIN of the detected vehicles is consistent with vehicle public information or not is compared, and if the VIN of the detected vehicles is not consistent with the vehicle public information, counterfeiting is possible;
(2) aiming at the fact that detection personnel try to avoid a tail gas emission peak value through the fast and slow actions of stepping on an accelerator, a tail gas detection sampling pipe cannot capture the real condition of vehicle emission, a diagnosis real-time data stream and emission real-time data in the vehicle detection process are intercepted, whether the opening degree of the accelerator acquired through diagnosis meets the requirement or not is found through comparison, and a fake condition may exist if the opening degree of the accelerator does not meet the requirement.
(3) Aiming at the counterfeiting behaviors that some detection personnel change parameters of a computer system through software refreshing, EGR, SCR and the like do not work, and an engine does not limit speed and does not limit torque, whether the ECU version number of a vehicle is consistent with vehicle public information or not is compared, and if the ECU version number of the vehicle is not consistent with the vehicle public information, the counterfeiting behavior possibly exists.
(4) Aiming at the fake behavior that the NOx signal generator replaces an original vehicle NOx sensor and sends a false NOx signal to an ECU (electronic control Unit) so as to achieve the purpose of not spraying urea and not limiting the speed and the torque of an OBD (on-board diagnostics), by analyzing the variation range and the period of the NOx sensor signal, if the fluctuation of the NOx signal is greatly different from the actual working condition in the whole test process, the fake behavior can exist.
(5) Aiming at the behaviors that maintenance personnel do not maintain vehicles and directly print the certificates, the conditions that the replaceable parts enter and exit the warehouse are automatically matched and inquired, and if no parts exit the warehouse, maintenance is possibly false.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A closed loop supervisory system for in-use vehicle emissions detection and maintenance, characterized by: the system comprises a data transmission module, a detection data management module, a maintenance process management module and a typical fake-making automatic judgment module, wherein the detection data management module is connected with the typical fake-making automatic judgment module through the data transmission module, and the maintenance process management module is connected with the maintenance process management module through the data transmission module.
2. A closed loop regulatory system for in-use vehicle emissions detection and maintenance according to claim 1, wherein: the data transmission module is used for being in butt joint and interaction with a data interface of the detection station and a data interface of the maintenance station by utilizing WIFI wireless communication through the data verification system and the identity authentication system, and receiving vehicle emission detection and maintenance data of the detection station and the maintenance station.
3. A closed loop regulatory system for in-use vehicle emissions detection and maintenance according to claim 1, wherein: the detection data management module is used for storing the detection station vehicle emission detection data transmitted by the data transmission module, providing a survival detection report and reporting the information of the vehicle which is detected unqualified to the maintenance process management module.
4. A closed loop regulatory system for in-use vehicle emissions detection and maintenance according to claim 1, wherein: the maintenance process management module is used for receiving unqualified vehicle information sent by the detection data management module, and after maintenance is performed by maintenance personnel, data which are qualified in vehicle maintenance are stored and uploaded to the data transmission module and stored by the maintenance management module.
5. A closed loop regulatory system for in-use vehicle emissions detection and maintenance according to claim 1, wherein: the typical fake-making automatic determination module is used for respectively comparing vehicle detection and maintenance data with vehicle public information of a supervision department according to typical emission detection and maintenance fake-making methods such as fake detection results, accelerator-stepping fake-making operations and computer software-refreshing, automatically checking and determining possible fake-making behaviors of a detection station and a maintenance station based on database comparison and threshold analysis of data streams, and giving an alarm.
6. A closed loop regulatory system for in-use vehicle emissions detection and maintenance according to claim 1, wherein: the data transmission module is also connected with the data interface of the detection station and the data interface of the maintenance station in a wireless mode.
7. A closed loop regulatory system for in-use motor vehicle emissions detection and maintenance according to claim 6, wherein: the wireless mode includes but is not limited to 4G/3G/WIFI.
8. A closed loop regulatory system for in-use vehicle emissions detection and maintenance according to claim 1, wherein: the data transmission module is connected with the detection data management module in a wireless mode.
9. A closed loop regulatory system for in-use vehicle emissions detection and maintenance according to claim 8, wherein: the wireless mode includes but is not limited to 4G/3G/WIFI. .
10. A closed loop regulatory system for in-use vehicle emissions detection and maintenance according to claim 1, wherein: the typical fake automatic judgment module is realized as follows
(1) Whether the VIN of the detected vehicle is consistent with the vehicle public information or not is compared, and if not, whether fake is judged;
(2) by intercepting the diagnosis real-time data stream and the emission real-time data in the vehicle detection process, comparing and finding whether the opening degree of the accelerator acquired by diagnosis meets the requirement, and if the opening degree does not meet the requirement, judging that a false situation exists;
(3) comparing whether the ECU version number of the vehicle is consistent with the public information of the vehicle, and if not, judging that the vehicle is fake;
(4) by analyzing the variation range and the period of the NOx sensor signal, if the difference between the fluctuation of the NOx signal and the actual working condition is larger in the whole test process, judging that the false exists;
(5) and inquiring the condition of the replaceable parts entering and exiting the warehouse through automatic matching, and if no parts exist in the warehouse, judging that the maintenance is false.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010707695.2A CN111929408A (en) | 2020-07-21 | 2020-07-21 | Closed-loop supervision system for emission detection and maintenance of in-use motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010707695.2A CN111929408A (en) | 2020-07-21 | 2020-07-21 | Closed-loop supervision system for emission detection and maintenance of in-use motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111929408A true CN111929408A (en) | 2020-11-13 |
Family
ID=73315165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010707695.2A Pending CN111929408A (en) | 2020-07-21 | 2020-07-21 | Closed-loop supervision system for emission detection and maintenance of in-use motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111929408A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112734065A (en) * | 2020-12-28 | 2021-04-30 | 潍坊宇浩动力科技有限公司 | Online vehicle repairing appointment method for detecting and treating automobile exhaust |
| CN114659804A (en) * | 2022-03-21 | 2022-06-24 | 广州华盈信息技术有限公司 | Method and system for monitoring automobile detection data for automobile detection station |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203606318U (en) * | 2013-12-11 | 2014-05-21 | 河北云涛环保科技有限公司 | Supervision instrument for detection of motor vehicle exhaust |
| CN104199436A (en) * | 2014-08-15 | 2014-12-10 | 广西三原高新科技有限公司 | Automatic diagnosing system for energy conservation, emission reduction and repair of automobile |
| CN107479535A (en) * | 2017-08-23 | 2017-12-15 | 中国汽车技术研究中心 | A kind of system based on the anti-cheating of OBD automobile failure diagnosis |
| CN107703907A (en) * | 2017-08-11 | 2018-02-16 | 中国汽车技术研究中心 | A kind of detecting system for engine emissions control system |
| CN108343497A (en) * | 2018-01-18 | 2018-07-31 | 中国汽车技术研究中心 | A kind of diesel vehicle SCR system ageing failure rapid diagnosis system and method |
| CN109782650A (en) * | 2018-12-03 | 2019-05-21 | 中国汽车技术研究中心有限公司 | A kind of mounted remote monitor terminal based on multiple sensors |
-
2020
- 2020-07-21 CN CN202010707695.2A patent/CN111929408A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203606318U (en) * | 2013-12-11 | 2014-05-21 | 河北云涛环保科技有限公司 | Supervision instrument for detection of motor vehicle exhaust |
| CN104199436A (en) * | 2014-08-15 | 2014-12-10 | 广西三原高新科技有限公司 | Automatic diagnosing system for energy conservation, emission reduction and repair of automobile |
| CN107703907A (en) * | 2017-08-11 | 2018-02-16 | 中国汽车技术研究中心 | A kind of detecting system for engine emissions control system |
| CN107479535A (en) * | 2017-08-23 | 2017-12-15 | 中国汽车技术研究中心 | A kind of system based on the anti-cheating of OBD automobile failure diagnosis |
| CN108343497A (en) * | 2018-01-18 | 2018-07-31 | 中国汽车技术研究中心 | A kind of diesel vehicle SCR system ageing failure rapid diagnosis system and method |
| CN109782650A (en) * | 2018-12-03 | 2019-05-21 | 中国汽车技术研究中心有限公司 | A kind of mounted remote monitor terminal based on multiple sensors |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112734065A (en) * | 2020-12-28 | 2021-04-30 | 潍坊宇浩动力科技有限公司 | Online vehicle repairing appointment method for detecting and treating automobile exhaust |
| CN114659804A (en) * | 2022-03-21 | 2022-06-24 | 广州华盈信息技术有限公司 | Method and system for monitoring automobile detection data for automobile detection station |
| CN114659804B (en) * | 2022-03-21 | 2024-02-27 | 广州华盈信息技术有限公司 | Method and system for monitoring automobile detection data of automobile detection station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6732032B1 (en) | Wireless diagnostic system for characterizing a vehicle's exhaust emissions | |
| CN108343497B (en) | System and method for rapidly diagnosing aging failure of SCR system of diesel vehicle | |
| CN105604664A (en) | Vehicle emission remote monitoring system based on OBD (on-board diagnostics) detection data | |
| CN110243762A (en) | Telemetering motor vehicle tail and supervisory systems and self study high emitter decision algorithm | |
| CN112445183A (en) | Remote monitoring platform and system based on diesel oil obd detects | |
| CN111537412B (en) | Emission monitoring device, system and method | |
| CN111929408A (en) | Closed-loop supervision system for emission detection and maintenance of in-use motor vehicle | |
| CN207198655U (en) | A kind of in-use automotive emissions data collection on-line normalization terminal device based on OBD | |
| CN107831718A (en) | A kind of vehicle exhaust method for managing and monitoring | |
| CN106644504B (en) | Car fault diagnosis method, system and OBD diagnostic device | |
| CN111340280A (en) | System, method, device and medium for monitoring, preventing and controlling pollutant discharge amount | |
| CN106640305A (en) | Monitoring system and method for vehicle emission control aftertreatment device | |
| CN111127695A (en) | Vehicle monitoring system used in six-emission stage of vehicle utilization country | |
| CN111929079A (en) | Annual inspection pre-examining method for vehicle and vehicle | |
| CN109424406B (en) | Integrated tail gas wireless monitoring device | |
| CN102996210B (en) | On-line automatic diagnosis and remote monitoring system and method for automobile emission | |
| CN108257381A (en) | A kind of intelligent vehicle supervisory systems and method based on OBD modules | |
| CN202832728U (en) | Long-distance automobile exhaust emission detecting device and automobile | |
| CN107703907B (en) | Detection system for engine emission control system | |
| CN111147570B (en) | Car rental management system and method based on Internet of things | |
| CN203035322U (en) | On-line automatic diagnosis remote monitoring device of vehicle emissions | |
| CN111931954A (en) | Motor vehicle intelligence maintenance guidance system based on OBD | |
| CN112649379A (en) | Non-road mobile machinery tail gas pollution discharge monitoring device and method | |
| US9773355B2 (en) | System for monitoring and inspecting vehicle emissions levels for compliance | |
| CN116255234A (en) | Method for monitoring SCR efficiency of in-use vehicle by using remote emission management terminal data |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201113 |
|
| RJ01 | Rejection of invention patent application after publication |