CN113404577A - Method and device for identifying fuel oil filling point based on Internet of vehicles technology - Google Patents
Method and device for identifying fuel oil filling point based on Internet of vehicles technology Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
- F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/08—Exhaust gas treatment apparatus parameters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The invention provides a method and a device for identifying a fuel oil filling point based on the Internet of vehicles technology, which relate to the technical field of environmental protection supervision, and the method comprises the following steps: acquiring the refueling behavior of the vehicle; wherein the refueling behavior comprises a refueling place and a refueling time point; obtaining the upstream nitrogen oxide specific emission of the vehicle in a set fueling cycle after the fueling activity; wherein, the specific emission of the upstream nitrogen oxide is the specific emission of the nitrogen oxide at the upstream part of the selective catalytic reduction technology device, and the nitrogen oxide at the upstream part is discharged at the downstream part of the selective catalytic reduction technology device after being reacted by the selective catalytic reduction technology; comparing the specific emission of the upstream nitrogen oxides with the set standard specific emission to obtain a difference value; and judging whether the difference value exceeds a set emission limit value, and if so, determining the place where the vehicle generates the refueling behavior as an inferior fuel refueling point.
Description
Technical Field
The invention relates to the technical field of environmental protection supervision, in particular to a method and a device for identifying fuel oil filling points based on the internet of vehicles technology.
Background
At present, ChinaThe diesel vehicle mainly adopts a technical route of Selective Catalytic Reduction (SCR) aiming at NO in tail gas emission of the diesel vehiclexThe treatment process of (1) is to spray reducing agent ammonia or urea under the action of catalyst to remove NO in tail gasxReduction to N2And H2The basic working principle of O and SCR is as follows: the tail gas from the turbine enters an exhaust mixing pipe, a urea metering injection device is arranged on the mixing pipe, urea aqueous solution is injected, and NH is generated after hydrolysis and pyrolysis reaction of urea at high temperature3Using NH on the surface of the catalyst in SCR3Reduction of NOXDischarge N2Excess NH3Is also oxidized to N2And leakage is prevented. Typically, 5L of liquid urea aqueous solution is consumed along with 100L of fuel. Because SCR is widely applied to the aftertreatment of the tail gas of the diesel engine, the generation of particulate PM is controlled in the engine as much as possible by optimizing the oil injection and combustion processes, then the nitrogen oxide formed under the condition of oxygen enrichment is treated outside the engine, and the Nitrogen Oxide (NO) is timely treated by using urea for vehicles (the urea for vehicles is decomposed to generate ammonia at a certain temperature)x) Selective catalytic reduction is carried out, thereby achieving the purposes of energy saving and emission reduction.
As can be seen from the above, the complex physical and chemical reactions that occur in SCR include: injection, atomization, evaporation of aqueous urea solution, hydrolysis of urea and pyrolysis gas phase chemical reaction, and NOXOn the surface of the catalyst with NH3The generated catalytic surface chemical reaction needs to be added with urea in SCR to reduce the emission of nitrogen oxides. However, due to cost factors, many owners adopt various cheating modes to disable a nitrogen oxide control device or adopt an inferior urea aqueous solution, and meanwhile, according to sampling investigation on oil products of oil tanks of heavy-duty diesel trucks in parts of regions by industry associations, diesel oil samples meet the standards of less than 9%, wherein the sulfur content averagely exceeds the standard by 110 times, the maximum exceeds the standard by 800 times, and the exceeding condition touches eyes and surprises, thereby seriously affecting the air quality.
With the development of the car networking technology, a large amount of car monitoring data is accumulated, and how to efficiently extract effective information from the data and apply the effective information to environmental protection supervision is very important and becomes an important subject to be solved urgently in the industry.
Disclosure of Invention
In view of the above, the present invention is directed to a method and an apparatus for identifying a fuel refueling point based on internet of vehicles technology, so as to solve all or one of the above problems mentioned in the background art.
Based on the aim, the invention provides a method for identifying a fuel oil filling point based on an Internet of vehicles technology, which comprises the following steps:
acquiring the refueling behavior of the vehicle; wherein the fueling activities include a fueling location and a fueling time point;
obtaining the upstream nitrogen oxide specific emission of the vehicle in a set fueling cycle after the fueling activity; wherein the upstream nitrogen oxide specific emission is the nitrogen oxide specific emission of the upstream part of the selective catalytic reduction technology device, and the nitrogen oxide of the upstream part is discharged at the downstream part of the selective catalytic reduction technology device after being subjected to the selective catalytic reduction technology reaction;
comparing the specific emission of the upstream nitrogen oxides with the set standard specific emission to obtain a difference value;
and judging whether the difference value exceeds a set emission limit value, and if so, determining the place where the vehicle generates the refueling behavior as an inferior fuel refueling point.
Optionally, whether the difference value exceeds a set emission limit value or not is judged, and if not, the place where the vehicle generates the refueling behavior is determined as a qualified fuel refueling point.
Optionally, the step of obtaining the refueling behavior of the vehicle specifically includes the following steps:
acquiring oil tank liquid level data and longitude and latitude data of a vehicle by using a vehicle-mounted detection terminal;
preprocessing the oil tank liquid level data; wherein the preprocessing comprises one or more of cleaning, converting and analyzing the oil tank liquid level data;
acquiring the change condition of the preprocessed oil tank liquid level data according to the time sequence to obtain the refueling time point of the vehicle and the corresponding longitude and latitude data;
and aggregating the refueling time points of the vehicle and the corresponding longitude and latitude data to obtain the refueling place.
Optionally, the specific emission of the upstream nitrogen oxides is obtained by the ratio of the sum of the mass flow of the nitrogen oxides in the set fueling period to the sum of the engine power of the vehicle in the set fueling period; the mass flow sum of the nitrogen oxides in the set refueling period is obtained by accumulating the mass flow of the nitrogen oxides at each time point in the set refueling period, and the engine power sum of the vehicle in the set refueling period is obtained by accumulating the engine power at each time point in the set refueling period.
Optionally, the mass flow rate of nitrogen oxides at a single time point is obtained from the concentration value of nitrogen oxides at a downstream part of the selective catalytic reduction technology device at the time point, the air intake quantity of the vehicle and the engine fuel flow rate of the vehicle;
the engine power of the vehicle at a single point in time is derived from the vehicle engine speed and the engine torque at that point in time.
Optionally, comparing the specific emission of the upstream nitrogen oxides with a set standard specific emission to obtain a difference value specifically includes the following steps:
acquiring the absolute value of the difference between the specific emission of the upstream nitrogen oxides and the set standard specific emission;
and acquiring a ratio between the absolute value of the difference and a set standard ratio emission, wherein the ratio is the difference.
Optionally, the set emission limit is 3-8%.
The invention also provides a device for identifying the fuel oil filling point based on the Internet of vehicles technology, which comprises the following components:
the refueling behavior identification module is used for acquiring the refueling behavior of the vehicle; wherein the refueling behavior comprises a refueling location and a refueling time point;
a specific emission acquisition module for acquiring specific emission of nitrogen oxides upstream of the vehicle in a fueling cycle set after the fueling act; wherein, the specific emission of the upstream nitrogen oxide is the specific emission of the nitrogen oxide at the upstream part of the selective catalytic reduction technical device, and the nitrogen oxide at the upstream part is discharged at the downstream part of the selective catalytic reduction technical device after being reacted by the selective catalytic reduction technology;
the comparison module is used for comparing the specific emission of the upstream nitric oxide with the set standard specific emission to obtain a difference value;
and the poor fuel oil filling point identification module is used for judging whether the difference value exceeds a set emission limit value or not, and if the difference value exceeds the emission limit value, determining the place where the vehicle generates the oil filling behavior as a poor fuel oil filling point.
The invention also provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the program to realize the steps of the method for identifying the fuel filling point based on the internet of vehicles technology.
The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method for identifying a fuel filling point based on internet of vehicles technology as set forth in any of the above.
From the above, the method and the device for identifying the fuel oil filling point based on the internet of vehicles technology provided by the invention can better serve for environmental protection supervision based on the vehicle network technology and the big data technology by acquiring the fuel filling behavior of the vehicle, judging the fuel oil filling place of the vehicle and whether the merchant and the vehicle owner of the place have the behavior of adopting various cheating modes to disable the nitrogen oxide control device or fill the inferior urea aqueous solution by the specific emission of the upstream nitrogen oxide in the set fuel filling period after the fuel filling behavior is acquired and judging whether the specific emission of the upstream nitrogen oxide exists.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a first schematic flow chart of a method for identifying a fuel filling point based on Internet of vehicles technology according to the present invention;
FIG. 2 is a schematic diagram of the upstream and downstream sides of an SCR device in a method for identifying a fuel filling point based on Internet of vehicles technology according to the present invention;
FIG. 3 is a logic diagram of the method of identifying fuel refueling points based on Internet of vehicles technology in accordance with the present invention;
FIG. 4 is a schematic flow chart diagram II of a method for identifying a fuel filling point based on Internet of vehicles technology according to the invention;
FIG. 5 is a flowchart illustrating a specific step S100 of the method for identifying a fuel filling point based on Internet of vehicles according to the present invention;
FIG. 6 is a flowchart illustrating a specific step S300 of the method for identifying a fuel filling point based on Internet of vehicles according to the present invention;
FIG. 7 is a schematic structural diagram of a device for identifying a fuel filling point based on Internet of vehicles technology according to the present invention;
FIG. 8 is a schematic structural diagram of a fueling behavior recognition module in the device for recognizing a fuel fueling point based on the Internet of vehicles technology according to the present invention;
FIG. 9 is a schematic structural diagram of a comparison module in the device for identifying a fuel filling point based on the Internet of vehicles technology according to the present invention;
fig. 10 is a schematic structural diagram of an electronic device according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
It is to be noted that technical terms or scientific terms used in the embodiments of the present invention should have the ordinary meanings as understood by those having ordinary skill in the art to which the present disclosure belongs, unless otherwise defined. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly.
As a preferred embodiment of the invention, the invention provides a method for identifying a fuel oil filling point based on Internet of vehicles technology, which comprises the following steps:
acquiring the refueling behavior of the vehicle; wherein the fueling activities include a fueling location and a fueling time point;
obtaining the upstream nitrogen oxide specific emission of the vehicle in a set fueling cycle after the fueling activity; wherein the upstream nitrogen oxide specific emission is the nitrogen oxide specific emission of the upstream part of the selective catalytic reduction technology device, and the nitrogen oxide of the upstream part is discharged at the downstream part of the selective catalytic reduction technology device after being subjected to the selective catalytic reduction technology reaction;
comparing the specific emission of the upstream nitrogen oxides with the set standard specific emission to obtain a difference value;
and judging whether the difference value exceeds a set emission limit value, and if so, determining the place where the vehicle generates the refueling behavior as an inferior fuel refueling point.
The invention also provides a device for identifying the fuel oil filling point based on the Internet of vehicles technology, which comprises the following components:
the refueling behavior identification module is used for acquiring the refueling behavior of the vehicle; wherein the refueling behavior comprises a refueling location and a refueling time point;
a specific emission acquisition module for acquiring specific emission of nitrogen oxides upstream of the vehicle in a fueling cycle set after the fueling act; wherein, the specific emission of the upstream nitrogen oxide is the specific emission of the nitrogen oxide at the upstream part of the selective catalytic reduction technical device, and the nitrogen oxide at the upstream part is discharged at the downstream part of the selective catalytic reduction technical device after being reacted by the selective catalytic reduction technology;
the comparison module is used for comparing the specific emission of the upstream nitric oxide with the set standard specific emission to obtain a difference value;
and the poor fuel oil filling point identification module is used for judging whether the difference value exceeds a set emission limit value or not, and if the difference value exceeds the emission limit value, determining the place where the vehicle generates the oil filling behavior as a poor fuel oil filling point.
According to the method and the device for identifying the fuel oil filling point based on the internet of vehicles technology, the fuel filling behavior of the vehicle is obtained, the specific emission of the upstream nitrogen oxide of the vehicle in the set fuel filling period after the fuel filling behavior is obtained, whether the behavior that the nitrogen oxide control device fails or inferior urea aqueous solution is filled exists in the fuel filling place of the vehicle, a merchant and a vehicle owner in the place or not in various cheating modes is judged according to the specific emission of the upstream nitrogen oxide, and the method and the device can be better used for environment protection supervision based on the internet of vehicles technology and big data technology.
The following describes a preferred embodiment of the method and apparatus for identifying a fuel filling point based on internet of vehicles technology according to the present invention with reference to the accompanying drawings.
Referring to fig. 1, 2 and 3, the method includes the following steps:
s100, obtaining the refueling behavior of the vehicle, namely obtaining whether the vehicle is refueled at present. Wherein the refueling behavior comprises a refueling place and a refueling time point.
In this embodiment, the refueling location refers to a longitude and latitude coordinate of a vehicle during refueling, and a refueling merchant in the longitude and latitude coordinate can be acquired through the longitude and latitude coordinate.
S200, obtaining the refueling behaviorNitrogen Oxides (NO) upstream of the vehicle in a set fueling cyclex) Specific discharge of (d); wherein upstream NOxIs NO in the upstream part of a Selective Catalytic Reduction (SCR) devicexSpecific emission, NO in the upstream partxPartially discharged downstream of the SCR device after undergoing the SCR reaction, the discharged gas including a portion of unreacted NOxAnd NOxN obtained after reduction2And H2O。
It should be noted that the set fueling period may be specifically set according to actual conditions.
In this method, as shown in the formula (1), upstream NOxSpecific emission from NO in the set refuelling cyclexThe ratio of the sum of the mass flows to the sum of the engine power of the vehicle during the set fueling period is obtained, and equation (1) is:
upstream NOxSpecific emissions (mg/kwh) ═ Σ NOx mass flow/Σ engine power (1)
I.e. NO in the set refuelling periodxThe sum of mass flow is determined by NO at each time point in the set refueling periodxThe mass flow is accumulated and the sum of the engine power of the vehicle in the set fueling period is accumulated from the engine power at each time point in the set fueling period.
NO at a single point in time, as shown in equations (2) and (3)xMass flow rate of NO from the portion downstream of the SCR device at the time pointxThe concentration value, the vehicle air intake amount and the engine fuel flow rate of the vehicle, the engine power of the vehicle at a single point in time being obtained from the vehicle engine speed and the engine torque at that point in time, and equations (2) and (3) are:
NOxmass flow rate (NO) of downstream partxConcentration value of vehicle intake air quantity 0.0016+ NO of downstream portionxConcentration value of engine fuel flow of automobile 0.0013 (2)
Vehicle engine power ═ vehicle engine speed ═ vehicle engine torque/9550 (3)
In the present embodiment, the calculated invalid value defaults to 0, for example, 65535 is an invalid value, and defaults to 0 when the concentration is a negative value.
S300, mixing upstream NOxThe specific emission of (A) is compared with the set standard specific emission to obtain a difference value.
S400, judging whether the difference value exceeds a set emission limit value or not, and if the difference value exceeds the emission limit value, determining the place where the vehicle generates the refueling behavior as an inferior fuel refueling point. The poor-quality fuel oil filling point represents a fuel oil filling place of a vehicle and the behavior of adopting various cheating modes to disable the nitrogen oxide control device or fill the poor-quality urea aqueous solution for a merchant and a vehicle owner of the place.
The merchant (also the owner) at the site may then be blacklisted, the name of the site, longitude, latitude, number of overproof times, average specific emissions, etc. recorded.
The set emission limit may be set specifically according to actual conditions. In this embodiment, the emission limit is set to 3-8%, and preferably, 5% is used.
The method for identifying the fuel oil filling point based on the internet of vehicles technology provided by the invention can better serve the environmental protection supervision and management based on the vehicle network technology and the big data technology by acquiring the fuel filling behavior of the vehicle, judging the location of the vehicle for filling fuel oil and whether the merchants and the vehicle owners of the location have the behavior of adopting various cheating modes to enable the nitrogen oxide control device to be invalid or filling the inferior urea aqueous solution by acquiring the specific emission of the upstream nitrogen oxide of the vehicle in the set fuel filling period after the fuel filling behavior is acquired and judging the location of the vehicle for filling fuel oil and whether the merchants and the vehicle owners of the location have the behavior of adopting various cheating modes.
Referring to fig. 4, step S400 further includes the following steps:
and S400, judging whether the difference value exceeds a set emission limit value or not, and if not, determining the place where the vehicle generates the refueling behavior as a qualified fuel refueling point.
Referring to fig. 5, step S100 specifically includes the following steps:
and S110, acquiring data such as oil tank liquid level data, longitude and latitude data and the like of the vehicle by using the vehicle-mounted detection terminal. More specifically, after acquiring data such as the liquid level data of the fuel tank of the vehicle and longitude and latitude data, the vehicle-mounted detection terminal sends the data to the vehicle-mounted processing system through a Controller Area Network (CAN) bus. It can be understood that the vehicle-mounted detection terminal is used for acquiring data such as fuel tank liquid level data, longitude and latitude data and the like of the vehicle.
And S120, preprocessing the liquid level data of the oil tank. In this embodiment, the pre-processing includes one or more of cleaning, converting, and analyzing the tank level data.
S130, obtaining the change condition of the preprocessed oil tank liquid level data according to the time sequence, and obtaining the refueling time point of the vehicle and the corresponding longitude and latitude data.
S140, aggregating the refueling time points of the vehicles and the corresponding longitude and latitude data to obtain refueling places.
Referring to fig. 6, step S300 specifically includes the following steps:
s310, obtaining the absolute value of the difference value between the upstream nitrogen oxide specific emission and the set standard specific emission.
And S320, acquiring a ratio between the absolute value of the difference and the set standard ratio emission, wherein the ratio is the difference.
The device for identifying the fuel filling point based on the internet of vehicles technology provided by the invention is described below, and the device for identifying the fuel filling point based on the internet of vehicles technology described below and the method for identifying the fuel filling point based on the internet of vehicles technology described above can be referred to correspondingly.
Referring to fig. 7, the apparatus includes:
the refueling behavior identification module 100 is configured to obtain a refueling behavior of a vehicle, that is, whether the vehicle is refueling at present. Wherein the refueling behavior comprises a refueling place and a refueling time point.
In this embodiment, the refueling location refers to a longitude and latitude coordinate of a vehicle during refueling, and a refueling merchant in the longitude and latitude coordinate can be acquired through the longitude and latitude coordinate.
Specific emissions acquisition module 200For obtaining the Nitrogen Oxides (NO) upstream of the vehicle during a refuelling cycle set after a refuelling actionx) Specific discharge of (d); wherein upstream NOxIs NO in the upstream part of a Selective Catalytic Reduction (SCR) devicexSpecific emission, NO in the upstream partxIs partially discharged at the downstream part of the SCR device after undergoing the SCR reaction, and the discharged gas comprises part of unreacted NOxAnd NOxN obtained after reduction2And H2O。
It should be noted that the set fueling period may be specifically set according to actual conditions.
In this device, as shown in the formula (4), upstream NOxSpecific emission from NO in the set refuelling cyclexThe ratio of the sum of the mass flows to the sum of the engine power of the vehicle during the set fueling period is obtained, and equation (4) is:
upstream NOxSpecific emissions (mg/kwh) ═ Σ NOx mass flow/Σ engine power (4)
I.e. NO in the set refuelling periodxThe sum of mass flow is determined by NO at each time point in the set refueling periodxThe mass flow is accumulated and the sum of the engine power of the vehicle in the set fueling period is accumulated from the engine power at each time point in the set fueling period.
NO at a single point in time, as shown in equations (5) and (6)xMass flow rate of NO from the portion downstream of the SCR device at the time pointxThe concentration value, the vehicle air intake amount and the engine fuel flow rate of the vehicle, the engine power of the vehicle at a single point in time being derived from the vehicle engine speed and the engine torque at that point in time, equation (5) and equation (6) being:
NOxmass flow rate (NO) of downstream partxConcentration value of vehicle intake air quantity 0.0016+ NO of downstream portionxConcentration value of automobile engine fuel flow 0.0013 (5)
Vehicle engine power ═ vehicle engine speed ═ vehicle engine torque/9550 (6)
In the present embodiment, the calculated invalid value defaults to 0, for example, 65535 is an invalid value, and defaults to 0 when the concentration is a negative value.
An alignment module 300 for aligning upstream NOxThe specific emission of (A) is compared with the set standard specific emission to obtain a difference value.
And the poor fuel oil filling point identification module 400 is used for judging whether the difference value exceeds a set emission limit value or not, and if the difference value exceeds the emission limit value, determining the place where the vehicle generates the oil filling behavior as a poor fuel oil filling point. The poor-quality fuel oil filling point represents a fuel oil filling place of a vehicle and the behavior of adopting various cheating modes to disable the nitrogen oxide control device or fill the poor-quality urea aqueous solution for a merchant and a vehicle owner at the place.
The merchant (also the owner) at the site may then be blacklisted, the name of the site, longitude, latitude, number of overproof times, average specific emissions, etc. recorded.
The set emission limit may be set specifically according to actual conditions. In this embodiment, the emission limit is set to 3-8%, and preferably, 5% is used.
According to the device for identifying the fuel oil filling point based on the Internet of vehicles technology, the fuel oil filling behavior identification module 100, the specific emission acquisition module 200, the comparison module 300 and the inferior fuel oil filling point identification module 400 are combined, the specific emission of the acquired upstream nitric oxide is used for judging whether the fuel oil filling place of the vehicle and the behavior of adopting various cheating modes to disable the nitric oxide control device or fill the inferior urea aqueous solution exist in the merchant and the vehicle owner of the place, and the device can be better used for environment protection supervision based on the vehicle network technology and the big data technology.
The poor fuel filling point identification module 400 further comprises:
and judging whether the difference value exceeds a set emission limit value, and if not, determining the place where the vehicle generates the refueling behavior as a qualified fuel refueling point.
Referring to fig. 9, the fueling behavior recognition module 100 specifically includes:
the data acquisition unit 110 is configured to acquire data such as tank level data and longitude and latitude data of the vehicle by using the vehicle-mounted detection terminal. More specifically, after acquiring data such as the liquid level data of the fuel tank of the vehicle and longitude and latitude data, the vehicle-mounted detection terminal sends the data to the vehicle-mounted processing system through a Controller Area Network (CAN) bus. It can be understood that the vehicle-mounted detection terminal is used for acquiring data such as the oil tank liquid level data and longitude and latitude data of the vehicle.
And the preprocessing unit 120 is used for preprocessing the oil tank liquid level data. In this embodiment, the pre-processing includes one or more of cleaning, converting, and analyzing the tank level data.
The first processing unit 130 is configured to obtain a change condition of the preprocessed oil tank liquid level data according to the time sequence, and obtain a refueling time point of the vehicle and corresponding longitude and latitude data.
The second processing unit 140 is configured to aggregate the refueling time point of the vehicle and the corresponding longitude and latitude data to obtain a refueling location.
Referring to fig. 9, the comparison module 300 specifically includes:
a first comparison unit 310 for obtaining an absolute value of a difference between the upstream specific emission of nitrogen oxides and a set standard specific emission.
The second comparing unit 320 is configured to obtain a ratio between the absolute difference value and the set standard ratio emission, where the ratio is a difference value.
Fig. 10 illustrates a physical structure diagram of an electronic device, and as shown in fig. 10, the electronic device may include: a processor (processor)810, a communication interface 820, a memory 830 and a communication bus 840, wherein the processor 810, the communication interface 820 and the memory 830 communicate with each other via the communication bus 840. The processor 810 may invoke logic instructions in the memory 830 to perform a method of identifying a fuel fill point based on internet of vehicles technology, comprising the steps of:
s100, obtaining the refueling behavior of the vehicle; wherein the refueling behavior comprises a refueling location and a refueling time point;
s200, acquiring the specific emission of the upstream nitrogen oxide of the vehicle in a set refueling period after the refueling behavior; wherein the upstream nitrogen oxide specific emission is the specific emission of the nitrogen oxide in the upstream part of the selective catalytic reduction technology device, and the nitrogen oxide in the upstream part is discharged in the downstream part of the selective catalytic reduction technology device after being subjected to the selective catalytic reduction technology reaction;
s300, comparing the specific emission of the upstream nitrogen oxides with the set standard specific emission to obtain a difference value;
s400, judging whether the difference value exceeds a set emission limit value or not, and if the difference value exceeds the emission limit value, determining the place where the vehicle generates the refueling behavior as an inferior fuel refueling point.
Furthermore, the logic instructions in the memory 830 may be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, which when executed by a computer, enable the computer to perform the method for identifying a fuel filling point based on vehicle networking technology provided by the above methods, the method for identifying a fuel filling point based on vehicle networking technology comprising the steps of:
s100, obtaining the refueling behavior of the vehicle; wherein the refueling behavior comprises a refueling location and a refueling time point;
s200, acquiring the specific emission of the upstream nitrogen oxide of the vehicle in a set refueling period after the refueling behavior; wherein the upstream nitrogen oxide specific emission is the specific emission of the nitrogen oxide in the upstream part of the selective catalytic reduction technology device, and the nitrogen oxide in the upstream part is discharged in the downstream part of the selective catalytic reduction technology device after being subjected to the selective catalytic reduction technology reaction;
s300, comparing the specific emission of the upstream nitrogen oxides with the set standard specific emission to obtain a difference value;
s400, judging whether the difference value exceeds a set emission limit value or not, and if the difference value exceeds the emission limit value, determining the place where the vehicle generates the refueling behavior as an inferior fuel refueling point.
In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor, implements the method for identifying a fuel filling point based on internet of vehicles technology provided above, the method for identifying a fuel filling point based on internet of vehicles technology comprising the steps of:
s100, obtaining the refueling behavior of the vehicle; wherein the refueling behavior comprises a refueling location and a refueling time point;
s200, acquiring the specific emission of the upstream nitrogen oxide of the vehicle in a set refueling period after the refueling behavior; wherein the upstream nitrogen oxide specific emission is the specific emission of the nitrogen oxide in the upstream part of the selective catalytic reduction technology device, and the nitrogen oxide in the upstream part is discharged in the downstream part of the selective catalytic reduction technology device after being subjected to the selective catalytic reduction technology reaction;
s300, comparing the specific emission of the upstream nitrogen oxides with the set standard specific emission to obtain a difference value;
s400, judging whether the difference value exceeds a set emission limit value or not, and if the difference value exceeds the emission limit value, determining the place where the vehicle generates the refueling behavior as an inferior fuel refueling point.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and of course, can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a ROM/RM, a magnetic disk, an optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for identifying a fuel oil filling point based on the Internet of vehicles technology is characterized by comprising the following steps:
acquiring the refueling behavior of the vehicle; wherein the fueling activities include a fueling location and a fueling time point;
obtaining the upstream nitrogen oxide specific emission of the vehicle in a set fueling cycle after the fueling activity; wherein the upstream nitrogen oxide specific emission is the specific emission of the nitrogen oxide in the upstream part of the selective catalytic reduction technology device, and the nitrogen oxide in the upstream part is discharged in the downstream part of the selective catalytic reduction technology device after being subjected to the selective catalytic reduction technology reaction;
comparing the specific emission of the upstream nitrogen oxides with the set standard specific emission to obtain a difference value;
and judging whether the difference value exceeds a set emission limit value, and if so, determining the place where the vehicle generates the refueling behavior as an inferior fuel refueling point.
2. The method for identifying a fuel filling point based on the internet of vehicles technology as claimed in claim 1, wherein it is determined whether the difference value exceeds a set emission limit value, and if the difference value does not exceed the emission limit value, the location where the vehicle generates the filling action is determined as a qualified fuel filling point.
3. The method for identifying a fuel filling point based on internet of vehicles technology as claimed in claim 1, wherein the step of obtaining the filling behavior of the vehicle specifically comprises the steps of:
acquiring oil tank liquid level data and longitude and latitude data of a vehicle by using a vehicle-mounted detection terminal;
preprocessing the oil tank liquid level data; wherein the pre-processing comprises one or a combination of more of cleaning, converting and analyzing the tank level data;
obtaining the change condition of the preprocessed oil tank liquid level data according to the time sequence, and obtaining the oiling time point of the vehicle and the corresponding longitude and latitude data;
and aggregating the refueling time points of the vehicle and the corresponding longitude and latitude data to obtain the refueling place.
4. The internet-of-vehicles technology-based fuel refueling point identification method as claimed in claim 1, wherein the upstream nox specific emission is obtained from a ratio of a sum of nox mass flow during a set refueling period to a sum of engine power of the vehicle during the set refueling period; the total mass flow of the nitrogen oxide in the set refueling period is obtained by accumulating the mass flow of the nitrogen oxide at each time point in the set refueling period, and the total engine power of the vehicle in the set refueling period is obtained by accumulating the engine power at each time point in the set refueling period.
5. The internet of vehicles technology-based fuel filling point identification method as claimed in claim 4, wherein the mass flow of nitrogen oxide at a single time point is obtained from the concentration value of nitrogen oxide at the downstream part of the selective catalytic reduction technology device at the time point, the air intake of the vehicle and the fuel flow of the engine of the vehicle;
the engine power of the vehicle at a single point in time is derived from the vehicle engine speed and the engine torque at that point in time.
6. The method for identifying a fuel filling point based on internet of vehicles technology according to claim 1, wherein the step of comparing the upstream specific emission of nitrogen oxides with the set standard specific emission to obtain a difference specifically comprises the steps of:
acquiring the absolute value of the difference between the specific emission of the upstream nitrogen oxides and the set standard specific emission;
and acquiring a ratio between the absolute value of the difference and a set standard ratio emission, wherein the ratio is the difference.
7. The internet of vehicles technology-based fuel refueling point identification method as recited in claim 6, wherein the set emission limit is 3-8%.
8. The utility model provides a device based on internet of vehicles technique is according to discernment fuel filling point, its characterized in that includes:
a refueling behaviour recognition module (100) for acquiring a refueling behaviour of a vehicle; wherein the fueling activities include a fueling location and a fueling time point;
a specific emission acquisition module (200) for acquiring a specific emission of nitrogen oxides upstream of the vehicle in a refuelling cycle set after the refuelling act; wherein the upstream nitrogen oxide specific emission is the specific emission of the nitrogen oxide in the upstream part of the selective catalytic reduction technology device, and the nitrogen oxide in the upstream part is discharged in the downstream part of the selective catalytic reduction technology device after being subjected to the selective catalytic reduction technology reaction;
the comparison module (300) is used for comparing the specific emission of the upstream nitrogen oxides with the set standard specific emission to obtain a difference value;
and the poor fuel filling point identification module (400) is used for judging whether the difference value exceeds a set emission limit value or not, and if the difference value exceeds the emission limit value, determining the position where the vehicle generates the fuel filling action as a poor fuel filling point.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of the method for identifying a fuel filling point based on internet of vehicles technology as claimed in any one of claims 1 to 7.
10. A non-transitory computer readable storage medium, having a computer program stored thereon, wherein the computer program, when being executed by a processor, implements the steps of the method for identifying a fuel filling point based on internet of vehicles technology as claimed in any one of claims 1 to 7.
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