CN204789314U - Automobile exhaust pollutant monitoring system based on electron environmental protection card - Google Patents

Abstract

The utility model discloses a vehicle exhaust pollutant monitoring system based on an electronic environmental protection card, which comprises an electronic environmental protection card, a reader, a road telemetry device and a service host. , the area pasted on the glass should not be less than 50% of its own area. The RFID chip contains vehicle information and vehicle environmental protection information; environmental protection information and send it to the service host. The utility model provides a vehicle exhaust pollutant monitoring method and system based on an electronic environmental protection card, which can monitor the vehicle exhaust pollutants in real time and judge whether the vehicle discharge exceeds the standard.

Description

A vehicle exhaust pollutant monitoring system based on electronic environmental card

technical field

The utility model relates to the technical field of vehicle emission pollutant monitoring, in particular to a vehicle tail gas pollutant monitoring system based on an electronic environmental protection card.

Background technique

With the increasing use of automobiles and the continuous enhancement of people's awareness of environmental protection, the emission of automobile pollutants has attracted more and more attention.

At present, the emission concentration value of automobile exhaust or the emission per unit mileage is mainly detected by the automobile exhaust emission detector. This method can only read the exhaust emission of a certain vehicle at idle speed when it is parked or simulated driving conditions on the bench. Condition.

A telemetry device used in recent years can detect the emission concentration of a driving vehicle, but it cannot directly and accurately determine whether the driving vehicle exceeds the standard. "New cars have new standards, old cars have old standards", the existing telemetry equipment cannot detect whether it is a new car or an old car, but can only detect the concentration of emissions. Relying on number plate video recognition, the recognition accuracy rate is about 85%. Therefore, it is not possible to accurately distinguish whether it is a new car or an old car through number plate recognition. In addition, most urban environmental protection departments have not yet established a complete, accurate and standardized vehicle database. Therefore, the total correct rate of judging vehicles exceeding the standard is less than 50%. Therefore, the background processing of the existing telemetry still relies on manual completion, and the exhaust telemetry equipment in most cities is difficult to achieve its due effect.

Therefore, it is necessary to provide a system capable of monitoring vehicle exhaust pollutants in real time, which can accurately determine whether vehicle emissions exceed the standard in real time, and then take corresponding restrictive measures.

Utility model content

In view of the above defects or improvement needs of the prior art, the purpose of this utility model is to provide a method and system for monitoring vehicle exhaust pollutants based on an electronic environmental protection card, which can monitor vehicle exhaust pollutants in real time and judge vehicle emissions. Whether it exceeds the standard.

The technical scheme of the utility model is:

A vehicle exhaust pollutant monitoring system based on an electronic environmental protection card, including an electronic environmental protection card, a reader, a road telemetry device, and a service host, wherein,

The electronic environmental protection card or automotive electronic identification has a built-in RFID chip, which is close to the inner side of the front windshield of the vehicle, and the area pasted on the glass should not be less than 50% of its own area. The RFID chip contains vehicle information and vehicle environmental protection information;

The reader is set at the identification base station, communicates with the RFID chip built in the electronic environmental protection card, receives the vehicle and its environmental protection information and sends it to the service host;

The road telemetry device includes:

A gas concentration analyzer and a laser diode, non-dispersive infrared light source, deuterium lamp, green laser or ultraviolet light source respectively connected to the gas concentration analyzer;

The gas concentration analyzer is electrically connected to the service host;

The service host has a built-in exhaust emission standard database, which stores emission standard limits corresponding to various types and models of vehicles.

Further, the road telemetry device also includes the use of a video camera to capture the Ringelmann blackness.

Therefore, the utility model can obtain the following beneficial effects: electronic identification + infrared telemetry are bundled, which is an effective method for realizing intelligent and fine management of environmental protection of vehicles. The environmental protection label electronic card is installed on the front windshield of the vehicle, which records the license plate number, vehicle emission standard, fuel type, vehicle type and other environmental information, and also accurately collects the owner and contact information of the vehicle (although information such as mobile phone number is not written directly to the electronic card, but retained in the database). Therefore, establishing an electronic card identification base station at fixed telemetry points on the side of the road can quickly read vehicle information and its environmental protection information, and compare it with the telemetry results, so that it can accurately determine whether the vehicle emission is qualified, and the recognition accuracy of the electronic environmental protection card More than 99.9%, the database for issuing electronic cards is complete, standardized and accurate, so it can continuously monitor the motor vehicles on the road in real time and online, and automatically identify, screen, transmit and alarm vehicles exceeding the standard. The test results can accurately and quickly notify the vehicle owner to carry out maintenance or re-inspection through SMS and other methods, so that the vehicle emission standard can be truly met on the road. Based on the utility model, it can realize the complete intellectualization of vehicle emission supervisory detection or regular detection, greatly improve efficiency, save time, save manpower and material resources, facilitate car owners, and greatly reduce the number of vehicles exceeding the standard on the road, which can effectively reduce the traffic accidents of motor vehicles. emissions, thus playing an important role in controlling air pollution, which is of national concern.

Description of drawings

The utility model will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is the structural representation of the vehicle exhaust pollutant monitoring system based on the electronic environmental protection card of the present utility model;

Fig. 2 is a schematic diagram of the installation position of the electronic environmental protection card of the present utility model;

Fig. 3 is a structural schematic diagram of the road telemetry device of the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute conflicts with each other.

A vehicle exhaust pollutant monitoring system based on an electronic environmental protection card, including an electronic environmental protection card, a reader, a road telemetry device, and a service host, wherein,

The electronic environmental protection card or automotive electronic identification has a built-in RFID chip, which is close to the inner side of the vehicle's front windshield, and the area pasted on the glass should not be less than 50% of its own area. The RFID chip contains vehicle information and vehicle environmental protection information; specifically, electronic The environmental protection card includes vehicle type, model, owner's identity information (may not be included), contact information (may not be included), license plate information, and vehicle emission standard level information, etc.

The reader is set at the identification base station, communicates with the RFID chip built in the electronic environmental protection card, receives the vehicle and its environmental protection information and sends it to the service host; specifically, when the vehicle passes the identification base station, the reader automatically reads The electronic environmental protection card data on the vehicle with a vehicle speed of (0-100) km/h is identified, and the data is analyzed into vehicle information and vehicle environmental protection information; the obtained vehicle information and vehicle environmental protection information are transmitted to the service through the reader The host can transmit information based on the TCP/UDP network interface protocol.

The road telemetry device includes:

Laser diode or non-dispersive infrared light source, the laser diode absorption spectrum in the near infrared band is used to measure CO and CO2 in the exhaust, and the non-dispersive infrared light source absorption spectrum is used to measure HC (propane) in the exhaust.

Deuterium lamp, NO and HC were measured by UV differential absorption spectroscopy using UV light source.

Green laser or ultraviolet light source, using green light source or ultraviolet light source to measure opacity;

Gas concentration analyzer: analyze the respective concentration values of the gases collected by laser diodes and other light sources, deuterium lamps, and green lasers; transmit the respective concentration information to the server; compare with the exhaust emission standard database;

The service host has a built-in exhaust emission standard database, which stores the emission standard limits corresponding to various types and models of vehicles;

Compare the received vehicle information and its environmental protection information, and the gas concentration information analyzed by the gas concentration analyzer with the exhaust emission standard database information to obtain whether the current vehicle exhaust pollution exceeds the standard, and transmit the judgment result to the service host for display and storage.

In this example,

A method for monitoring automobile exhaust pollutants based on an electronic environmental protection card, comprising the steps of:

Step 1. An electronic environmental protection card or an electronic vehicle identification is installed on the driving vehicle;

Step 2. Install readers and telemetry devices on both sides of the road;

Step 3. When the vehicle passes by the reader, the reader communicates with the electronic environmental protection card, obtains the current vehicle information and its environmental protection information and uploads it to the service host;

Step 4. The telemetry device obtains the current gas concentration information in the vehicle exhaust and transmits it to the service host;

Step 5. Compare the current vehicle information and its environmental protection information, and the concentration information of each gas in the exhaust gas with the exhaust emission standard database built in the service host to determine whether the current vehicle exhaust pollution exceeds the standard;

Step 6: Transmitting the judgment result to the service host for display.

Further, if the obtained judgment result is that the exhaust gas pollution exceeds the standard, it can be sent to the owner's mobile phone in the form of a mobile phone short message.

The identification base station should automatically read the electronic environmental protection card data on the vehicle passing the identification base station within (0-100) km/h, and analyze the data into vehicle information and vehicle environmental protection information;

When the vehicle passes through the detection point, the detection equipment detects the speed and acceleration of the vehicle, and the concentration of exhaust pollutants. The video camera equipment takes pictures of the emission Ringelmann smoke and the license plate number, automatically performs license plate recognition, and calculates the specific power VSP value of the motor vehicle. Among them,

KE - vehicle kinetic energy;

PE——vehicle potential energy;

F _f - rolling resistance;

F _a - air resistance;

M - vehicle mass;

v—vehicle speed.

Upload the collected data and calculation results to the service host for storage. For gasoline vehicles, if the detection data satisfies 0kW/t≤VSP≤20kW/t, the detection result is valid, otherwise the detection result is invalid; for diesel vehicles, the detection data VSP≥0kW /t, the test result is valid, otherwise the test result is invalid.

For gasoline vehicles, the detection result is the concentration ratio of CO, HC, NO to CO2 in the exhaust directly measured by remote sensing into the combustion equation to calculate the concentration of exhaust pollutants. Compare the current vehicle information and its environmental protection information, the concentration information of each gas in the exhaust gas with the exhaust emission standard database built in the service host, and judge whether the exhaust pollution of the current driving vehicle exceeds the standard. The vehicle passes the telemetry point, and if one of the pollutants in the test result is higher than the corresponding emission limit, it will be judged as unqualified.

The emission limit of exhaust pollutants is:

See Table 1 for the emission limits of exhaust pollutants from gasoline vehicles (including liquefied petroleum gas and natural gas).

Table 1 Gasoline vehicle emission limits (including liquefied petroleum gas and natural gas)

See Table 2 for the emission limits of diesel vehicle exhaust pollutants.

Table 2 Diesel Vehicle Emission Limits

A soot concentration expression method measured by comparing the smoke color of exhaust pollutants with the Ringelmann concentration diagram, divided into 0-5 levels. There are six corresponding Ringelmann concentration diagrams, level 0 is completely white, level 1 is 20% black, level 2 is 40%, level 3 is 60%, level 4 is 80%, and level 5 is completely black.

Those skilled in the art can easily understand that the above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model.

Claims (2)

1. A vehicle exhaust pollutant monitoring system based on an electronic environmental protection card, characterized in that it comprises an electronic environmental protection card, a reader/writer, a road telemetry device and a service host, wherein, The electronic environmental protection card or automotive electronic identification has a built-in RFID chip, which is close to the inner side of the front windshield of the vehicle, and the area pasted on the glass should not be less than 50% of its own area. The RFID chip contains vehicle information and vehicle environmental protection information; The reader is set at the identification base station, communicates with the RFID chip built in the electronic environmental protection card, receives the vehicle and its environmental protection information and sends it to the service host; The road telemetry device includes: Gas concentration analyzer, laser diode or non-dispersive infrared light source connected to gas concentration analyzer, deuterium lamp connected to gas concentration analyzer, and green laser or ultraviolet light source connected to gas concentration analyzer; The gas concentration analyzer is electrically connected to the service host; The service host has a built-in exhaust emission standard database, which stores emission standard limits corresponding to various types and models of vehicles. 2. The automobile exhaust pollutant monitoring system based on the electronic environmental protection card as claimed in claim 1, wherein the road telemetering device also includes a video camera to photograph the Ringelmann blackness.