CN114645762A - Motor vehicle tail gas purification monitoring system and method - Google Patents
Motor vehicle tail gas purification monitoring system and method Download PDFInfo
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- CN114645762A CN114645762A CN202210559336.6A CN202210559336A CN114645762A CN 114645762 A CN114645762 A CN 114645762A CN 202210559336 A CN202210559336 A CN 202210559336A CN 114645762 A CN114645762 A CN 114645762A
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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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Abstract
The invention discloses a motor vehicle tail gas purification monitoring system and a method, relating to the technical field of motor vehicle tail gas purification monitoring, the system comprises a data acquisition module, a purification monitoring module, a vehicle marking module and a monitoring notification module, through the arrangement of the purification monitoring module, the purified tail gas of the vehicle tail gas purification equipment can be monitored, judging whether the tail gas purifying equipment is abnormal or not according to the driving record of the vehicle, recommending an optimal tail gas purifying equipment maintenance station to the owner of the vehicle with the abnormal tail gas purifying equipment, through the arrangement of the vehicle marking module, according to the information of the vehicle and the purification information of the exhaust gas purification equipment, the vehicle owner of the tail gas purification equipment which can be overhauled is marked and matched with the monitoring and informing module, the vehicle owners which need to be informed of the maintenance can be ordered, and the corresponding tail gas purification equipment maintenance stations can be informed of the vehicle owners in sequence.
Description
Technical Field
The invention relates to the technical field of motor vehicle exhaust purification monitoring, in particular to a motor vehicle exhaust purification monitoring system and a motor vehicle exhaust purification monitoring method.
Background
Automobile exhaust is exhaust generated when an automobile runs and contains solid suspended particles, carbon monoxide, carbon dioxide, hydrocarbons, oxynitride, lead, sulfur oxide and the like, and the exhaust directly harms human health and has a profound influence on the environment of human life.
Present car can purify automobile exhaust at blast pipe position installation exhaust gas purification equipment, uses to a certain extent at exhaust gas purification equipment after, its purifying effect to automobile exhaust can the variation. At present there is not corresponding monitoring system to keep watch on vehicle exhaust, leads to when tail gas clarification plant not enough to carry out effective purification back to tail gas, the car owner also not carry out corresponding maintenance to it, and the tail gas clarification plant maintenance station also can't inform the vehicle car owner in advance simultaneously, causes the pollution of environment easily.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a system and a method for monitoring the purification of motor vehicle exhaust.
In order to achieve the purpose, the invention provides the following technical scheme:
a motor vehicle exhaust purification monitoring system comprises a data acquisition module, a purification monitoring module, a vehicle marking module and a monitoring notification module;
the data acquisition module is used for acquiring the automobile exhaust emission of the vehicle;
purification monitoring module is used for monitoring exhaust gas purification equipment to vehicle owner to exhaust gas purification equipment unusual provides the best exhaust gas purification equipment maintenance station, specifically does:
calculating the time difference between the vehicle power-on time and the vehicle power-off time to obtain the single starting time of the vehicle, and obtaining the automobile exhaust emission after the exhaust purification equipment is purified in the single starting time and marking the automobile exhaust emission as an actual emission value;
setting each single starting time length to correspond to an expected emission value, comparing the expected emission value with an actual emission value, marking the single starting time length as a single discharge exceeding time length when the actual emission value is larger than the expected emission value, performing difference calculation on the actual emission value and the expected emission value to obtain a single discharge exceeding value, marking the single discharge exceeding value as Rd, and setting a discharge exceeding coefficient as Ps;
using formulas
Calculating to obtain the total super-row amount Ty;
respectively marking the vehicle power-on time and the vehicle power-off time corresponding to the single-time super-row duration as super-row power-on time and super-row power-off time, sequencing the super-row power-on time according to time sequence, marking the super-row power-on time with the first time as Lc, marking the super-row power-on time with the later time as Lt, sequencing the super-row power-off time according to the time sequence, marking the super-row power-off time with the first time as Qc, marking the super-row power-off time with the later time as Qt, and utilizing a formula
Acquiring a superbar interval single value Fg, summing the superbar interval single values Fg, and taking a mean value to acquire a superbar interval mean value and marking the superbar interval mean value as Ge;
summing the single-time super-discharging time length and taking the average value to obtain the mean value of the super-discharging time length and marking the mean value as Ra;
normalizing the total superovulation amount, the mean value of superovulation intervals and the mean value of superovulation duration by using a formula
Obtaining a purification difference value Og of the tail gas purification equipment;
when the purification difference value is larger than the threshold value, the tail gas purification equipment is marked as abnormal tail gas purification equipment;
acquiring the vehicle position of abnormal tail gas purification equipment, drawing a circle with a preset radius by taking the vehicle position as the center of the circle to acquire a pre-detection range, and marking a tail gas purification equipment maintenance station in the pre-detection range as a pre-detection maintenance station;
acquiring a maintenance value of a pre-inspection maintenance station, marking the pre-inspection maintenance station with the largest maintenance value as a final inspection maintenance station, and sending position information of the final inspection maintenance station to a vehicle owner mobile phone terminal for displaying;
the vehicle marking module is used for evaluating the net residual value of the tail gas purification equipment of the vehicle and marking the vehicle capable of being informed;
the monitoring notification module is used for monitoring the tail gas purification equipment maintenance station and notifying a vehicle owner of the vehicle to carry out maintenance within a notification range.
Further, the emission of automobile exhaust comprises carbon monoxide emission, carbon dioxide emission and sulfur dioxide emission.
Further, acquiring a delivery record of the vehicle tail gas purification equipment 7 days before the current system time of the pre-inspection maintenance station; wherein, the inspection record comprises inspection starting time, inspection ending time and vehicle arrival time; when the vehicle tail gas purification equipment starts to be overhauled, marking the time as overhauling starting time, when the vehicle tail gas purification equipment finishes overhauling, marking the time as overhauling ending time, sequencing the overhauling starting time and the overhauling ending time of the vehicle tail gas purification equipment 7 days before the current system time in sequence according to time, calculating the time difference between the overhauling starting time of the next vehicle tail gas purification equipment and the overhauling ending time of the previous vehicle tail gas purification equipment to obtain a single overhauling interval, summing the single overhauling interval and averaging the single overhauling interval to obtain an overhauling interval average value and marking the overhauling interval average value as Tw, when a vehicle enters a pre-inspection maintenance station, marking the time as vehicle station entering time, calculating the time difference between the overhauling starting time and the vehicle station entering time to obtain single time to be inspected, summing the single time to be inspected and averaging the single time to be inspected, obtaining and marking a time mean value to be detected as Tf, calculating the distance difference between the position of a maintenance station to be detected and the position of a vehicle to obtain an overhaul interval, marking the overhaul interval as Sq, normalizing the overhaul interval mean value, the time mean value to be detected and the overhaul interval, and utilizing a formula
And acquiring a maintenance value Gb of the pre-inspection maintenance station.
Further, the vehicle marking module is configured to evaluate a net residual value of an exhaust gas purification device of a vehicle, and mark a notifiable vehicle, specifically:
acquiring the leaving time of the tail gas purification equipment of the vehicle, summing the single starting time length of the vehicle between the leaving time of the tail gas purification equipment of the vehicle and the current time of the system, acquiring the purification time length and marking the purification time length as Jh;
obtaining the running distance of the vehicle in the single starting time, calculating the ratio of the running distance to the single starting time to obtain the single running speed of the vehicle, summing the single running speeds of the vehicle and averaging to obtain the average value of the running speeds, and marking the average value of the running speeds as Lc;
obtaining the vehicle displacement and marking the vehicle displacement as Pe;
summing the actual emission values of the vehicles and taking the average value to obtain the actual emission average value which is marked as Fg;
normalizing the purification duration, the average value of the running speed, the vehicle displacement and the actual emission average value, and taking the average value by using a formula
Acquiring a net residual value By of the tail gas purification equipment;
when the net residual is less than the threshold, the vehicle is marked as a notifiable vehicle.
Further, the monitoring notification module is used for monitoring the tail gas purification equipment maintenance station and notifying the owner of the vehicle to carry out maintenance within the range, and specifically comprises:
acquiring the position of a tail gas purification equipment maintenance station, and drawing a circle with a preset radius by taking the tail gas purification equipment maintenance station as a circle center to acquire a monitoring notification range;
acquiring the number of times of overhaul before the current system of the vehicle tail gas purification equipment which can be informed in the monitoring and informing range, and marking the number as Ce;
the net residual value of the vehicle and the maintenance times of the vehicle tail gas purification equipment can be informed to be normalized by using a formula
Obtaining a notification value Hk; wherein r1 and r2 are preset proportionality coefficients;
and sequencing the notification values according to the numerical values, and sequencing and displaying the mobile phone numbers of the owners of the notifiable vehicles corresponding to the notification values on a terminal of the tail gas purification equipment maintenance station.
Compared with the prior art, the invention has the following beneficial effects:
1. through the arrangement of the purification monitoring module, the tail gas purified by the vehicle tail gas purification equipment can be monitored, whether the tail gas purification equipment is abnormal or not is judged according to the driving record of the vehicle, and an optimal tail gas purification equipment maintenance station is recommended to an owner of the vehicle with the abnormal tail gas purification equipment;
2. through the setting of vehicle mark module, according to the information of vehicle and tail gas clean-up equipment purification information, mark the vehicle owner of the tail gas clean-up equipment that can overhaul to cooperate and keep watch on the notice module, can inform the vehicle owner of the maintenance to the needs and sequence, the tail gas clean-up equipment maintenance station that corresponds can inform the vehicle owner in order.
Drawings
FIG. 1 is a functional block diagram of the present invention;
FIG. 2 is a block flow diagram of the present invention.
Detailed Description
Refer to fig. 1 to 2
Example 1
A motor vehicle exhaust purification monitoring system comprises a data acquisition module and a purification monitoring module.
The data acquisition module is used for acquiring the automobile exhaust emission of the vehicle. The automobile exhaust emission comprises carbon monoxide emission, carbon dioxide emission and sulfur dioxide emission.
The purification monitoring module is used for monitoring the tail gas purification equipment and providing an optimal tail gas purification equipment maintenance station for an abnormal vehicle owner of the tail gas purification equipment, and specifically comprises the following steps:
the method comprises the following steps: and calculating the time difference between the vehicle power-on time and the vehicle power-off time to obtain the single starting time of the vehicle, and obtaining the automobile exhaust emission after the exhaust purification equipment purifies in the single starting time and marking the automobile exhaust emission as an actual emission value.
Step two: setting each single starting time length to correspond to an expected emission value, comparing the expected emission value with an actual emission value, marking the single starting time length as a single discharge exceeding time length when the actual emission value is larger than the expected emission value, calculating the difference between the actual emission value and the expected emission value to obtain a single discharge exceeding value, marking the single discharge exceeding value as Rd, wherein d =1,2, … …, n and n are positive integers, and setting a discharge exceeding coefficient as Ps.
Ps, s =1,2,3, … s; s is a positive integer; p1< P2< P3< … < Ps, wherein each super-drainage coefficient corresponds to a range of single-discharge super-value, and each single-discharge super-value comprises (0, B1], (B1, B2], … …, (Bs-1, Bs), and when Rd belongs to (0, B1), the corresponding super-drainage coefficient takes the value of P1.
Using formulas
And calculating to obtain the total super-row amount Ty.
Step three: respectively marking the vehicle power-on time and the vehicle power-off time corresponding to the single-time super-row duration as super-row power-on time and super-row power-off time, sequencing the super-row power-on time according to time sequence, marking the super-row power-on time with the first time as Lc, marking the super-row power-on time with the later time as Lt, sequencing the super-row power-off time according to the time sequence, marking the super-row power-off time with the first time as Qc, marking the super-row power-off time with the later time as Qt, and utilizing a formula
And obtaining a superrow interval single value Fg, summing the superrow interval single values Fg, taking the average value to obtain a superrow interval average value, and marking the superrow interval average value as Ge.
Step four: and summing the single-time row exceeding time length and taking the average value to obtain the average value of the row exceeding time length and marking the average value as Ra.
Step five: normalizing the total super-drainage amount, the mean value of super-drainage intervals and the mean value of super-drainage duration by using a formula
Obtaining a purification difference value Og of the tail gas purification equipment; wherein a1, a2 and a3 are all preset proportionality coefficients.
Step six: and when the purification difference value is larger than the threshold value, marking the tail gas purification equipment as abnormal tail gas purification equipment.
Step seven: and obtaining the vehicle position of the abnormal tail gas purification equipment, drawing a circle with a preset radius by taking the vehicle position as the center of the circle to obtain a pre-detection range, and marking the tail gas purification equipment maintenance station in the pre-detection range as a pre-detection maintenance station.
Step eight: and acquiring the overhaul value of the pre-inspection maintenance station, marking the pre-inspection maintenance station with the largest overhaul value as a final inspection maintenance station, and sending the position information of the final inspection maintenance station to the mobile phone terminal of the vehicle owner for display.
Obtaining a submission record of the vehicle tail gas purification equipment 7 days before the current system time of a pre-inspection maintenance station; wherein, the inspection record comprises inspection starting time, inspection ending time and vehicle arrival time; when the vehicle exhaust gas purifying equipment starts to be overhauled, the time is marked as overhaul starting time, and when the vehicle exhaust gas purifying equipment finishes overhauling, the time is marked as overhaul finishing time. Sequencing the overhaul start time and the overhaul end time of the vehicle tail gas purification equipment 7 days before the current system time according to time, calculating the time difference value between the overhaul start time of the next vehicle tail gas purification equipment and the overhaul end time of the previous vehicle tail gas purification equipment, and obtaining a single overhaul interval. And summing the single overhaul intervals, averaging, obtaining the mean value of the overhaul intervals, marking the mean value as Tw, marking the time as the arrival time of the vehicle when the vehicle enters a pre-inspection maintenance station, and calculating the time difference between the overhaul starting time and the arrival time of the vehicle to obtain the single inspection waiting time. Summing the single waiting time and averaging to obtain the waiting time averageThe value is marked as Tf, the distance difference between the position of the pre-inspection maintenance station and the position of the vehicle is calculated to obtain the inspection interval, the distance difference is marked as Sq, the average value of the inspection interval, the average value of the time to be inspected and the inspection interval are normalized by using a formula
Acquiring a maintenance value Gb of a pre-inspection maintenance station; wherein, k1, k2 and k3 are all preset proportionality coefficients.
Example 2
On the basis of the embodiment 1, the vehicle monitoring system further comprises a vehicle marking module and a monitoring notification module.
The vehicle marking module is used for evaluating the net residual value of the tail gas purification equipment of the vehicle and marking the vehicle to be informed, and specifically comprises the following steps:
the method comprises the following steps: obtaining the delivery time of the tail gas purification equipment of the vehicle, summing the single starting time length of the vehicle between the delivery time of the tail gas purification equipment of the vehicle and the current time of the system, obtaining the purification time length, and marking the purification time length as Jh.
Step two: the method comprises the steps of obtaining the running distance of a vehicle in the single starting time, calculating the ratio of the running distance to the single starting time, obtaining the single running speed of the vehicle, summing the single running speeds of the vehicle, averaging, obtaining the average value of the running speeds, and marking the average value as Lc.
Step three: the vehicle displacement is obtained and labeled Pe.
Step four: and summing the actual emission values of the vehicles, averaging, obtaining an actual emission average value, and marking the actual emission average value as Fg.
Step five: normalizing the cleaning time, the average value of the running speed, the vehicle displacement and the actual average value of the discharge, and taking the average value by using a formula
Acquiring a net residual value By of tail gas purification equipment; wherein m1, m2, m3 and m4 are all preset proportionality coefficients.
Step six: when the net residual is less than the threshold, the vehicle is marked as a notifiable vehicle.
The monitoring notification module is used for monitoring the tail gas purification equipment maintenance station and notifying a vehicle owner of the vehicle in the range to overhaul, and specifically comprises the following steps:
the method comprises the following steps: and acquiring the position of the tail gas purification equipment maintenance station, and drawing a circle by taking the tail gas purification equipment maintenance station as a circle center and a preset radius to acquire a monitoring notification range.
Step two: the number of times of overhaul before the current system of the vehicle exhaust gas purification device which can be notified within the monitoring notification range is obtained and marked as Ce.
Step three: the net residual value of the vehicle and the maintenance times of the vehicle tail gas purification equipment which can be informed are normalized by using a formula
Obtaining a notice value Hk; wherein r1 and r2 are preset proportionality coefficients.
Step four: and sequencing the notification values according to the numerical values, and sequencing and displaying the mobile phone numbers of the owners of the notifiable vehicles corresponding to the notification values on a terminal of the tail gas purification equipment maintenance station.
The working principle is as follows:
through the setting of purification monitoring module, can monitor the tail gas after the vehicle tail gas clean-up equipment purifies, judge whether tail gas clean-up equipment exists unusually according to the driving record of vehicle, and recommend best tail gas clean-up equipment maintenance station to the owner that has unusual tail gas clean-up equipment vehicle, through the setting of vehicle marking module, according to the information of vehicle and tail gas clean-up equipment purification information, mark the vehicle owner of the tail gas clean-up equipment that can overhaul, and cooperate and keep watch on the notice module, can inform the vehicle owner of maintaining to the needs and order, the corresponding tail gas clean-up equipment maintenance station can inform according to the order and inform the vehicle owner.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and all technical solutions that belong to the idea of the present invention belong to the scope of the present invention. It should be noted that modifications and embellishments within the scope of the present template may be made by those skilled in the art without departing from the principles of the present invention.
Claims (6)
1. A motor vehicle exhaust purification monitoring system is characterized by comprising a data acquisition module, a purification monitoring module, a vehicle marking module and a monitoring notification module;
the data acquisition module is used for acquiring the automobile exhaust emission of the vehicle;
purification monitoring module is used for monitoring exhaust gas purification equipment to vehicle owner to exhaust gas purification equipment unusual provides the best exhaust gas purification equipment maintenance station, specifically does:
calculating the time difference between the vehicle power-on time and the vehicle power-off time to obtain the single starting time of the vehicle, and obtaining the automobile exhaust emission after the exhaust purification equipment is purified in the single starting time and marking the automobile exhaust emission as an actual emission value;
setting each single starting time length to correspond to an expected emission value, comparing the expected emission value with an actual emission value, marking the single starting time length as a single discharge exceeding time length when the actual emission value is larger than the expected emission value, performing difference calculation on the actual emission value and the expected emission value to obtain a single discharge exceeding value, marking the single discharge exceeding value as Rd, and setting a discharge exceeding coefficient as Ps;
using formulas
Calculating to obtain the total super-row amount Ty;
respectively marking the vehicle power-on time and the vehicle power-off time corresponding to the single-time super-row time as super-row power-on time and super-row power-off time, sequencing the super-row power-on time according to time sequence, marking the power-on time of the super-row with the previous time as Lc, marking the power-on time of the super-row with the later time as Lt, sequencing the power-off time of the super-row according to the time sequence, marking the power-off time of the super-row with the previous time as Qc, and powering off the super-row with the later timeTime stamp Qt, using formula
Acquiring a superbar interval single value Fg, summing the superbar interval single values Fg, and taking a mean value to acquire a superbar interval mean value and marking the superbar interval mean value as Ge;
summing the single-time row exceeding time length and taking the average value to obtain the average value of the row exceeding time length and marking the average value as Ra;
normalizing the total super-drainage amount, the mean value of super-drainage intervals and the mean value of super-drainage duration by using a formula
Obtaining a purification difference value Og of the tail gas purification equipment;
when the purification difference value is larger than the threshold value, the tail gas purification equipment is marked as abnormal tail gas purification equipment;
acquiring the vehicle position of the abnormal tail gas purification equipment, drawing a circle with a preset radius by taking the vehicle position as the center of the circle to acquire a pre-detection range, and marking the tail gas purification equipment maintenance station in the pre-detection range as a pre-detection maintenance station;
acquiring a maintenance value of a pre-inspection maintenance station, marking the pre-inspection maintenance station with the largest maintenance value as a final inspection maintenance station, and sending position information of the final inspection maintenance station to a vehicle owner mobile phone terminal for displaying;
the vehicle marking module is used for evaluating the net residual value of the tail gas purification equipment of the vehicle and marking the vehicle which can be informed;
the monitoring notification module is used for monitoring the tail gas purification equipment maintenance station and notifying a vehicle owner of the vehicle to carry out maintenance within a notification range.
2. The system of claim 1, wherein the emissions of the vehicle include emissions of carbon monoxide, carbon dioxide and sulfur dioxide.
3. According to claim 2The motor vehicle tail gas purification monitoring system is characterized in that a delivery record of vehicle tail gas purification equipment 7 days before the current system time of a pre-inspection maintenance station is obtained; wherein, the inspection record comprises inspection starting time, inspection ending time and vehicle arrival time; when the vehicle tail gas purification equipment starts to be overhauled, marking the time as overhaul starting time, when the vehicle tail gas purification equipment finishes overhauling, marking the time as overhaul finishing time, sequencing the overhaul starting time and the overhaul finishing time of the vehicle tail gas purification equipment 7 days before the current system time according to time, calculating the time difference between the overhaul starting time of the next vehicle tail gas purification equipment and the overhaul finishing time of the previous vehicle tail gas purification equipment to obtain a single overhaul interval, summing the single overhaul intervals and taking the average value to obtain an overhaul interval average value and marking the overhaul interval average value as Tw, when a vehicle enters a pre-inspection maintenance station, marking the time as the vehicle arrival time, calculating the time difference between the overhaul starting time and the vehicle arrival time to obtain the single inspection time, summing the single inspection time and taking the average value, obtaining and marking a time mean value to be detected as Tf, calculating the distance difference between the position of a maintenance station to be detected and the position of a vehicle to obtain an overhaul interval, marking the overhaul interval as Sq, normalizing the overhaul interval mean value, the time mean value to be detected and the overhaul interval, and utilizing a formula
And acquiring a maintenance value Gb of the pre-inspection maintenance station.
4. A motor vehicle exhaust emission monitoring system according to claim 3, wherein the vehicle marking module is adapted to evaluate the net residual value of the exhaust emission device of the vehicle and mark the notifiable vehicle, in particular:
acquiring the leaving time of the tail gas purification equipment of the vehicle, summing the single starting time length of the vehicle between the leaving time of the tail gas purification equipment of the vehicle and the current time of the system, acquiring the purification time length and marking the purification time length as Jh;
obtaining the running distance of the vehicle in the single starting time, calculating the ratio of the running distance to the single starting time to obtain the single running speed of the vehicle, summing the single running speeds of the vehicle and averaging to obtain the average value of the running speeds, and marking the average value of the running speeds as Lc;
obtaining the vehicle displacement and marking as Pe;
summing the actual emission values of the vehicles and taking the average value to obtain the actual emission average value which is marked as Fg;
normalizing the purification duration, the average value of the running speed, the vehicle displacement and the actual emission average value, and taking the average value by using a formula
Acquiring a net residual value By of the tail gas purification equipment;
when the net residual is less than the threshold, the vehicle is marked as a notifiable vehicle.
5. The motor vehicle exhaust gas purification monitoring system according to claim 4, wherein the monitoring notification module is used for monitoring the exhaust gas purification equipment maintenance station and notifying a vehicle owner of the vehicle within a range to perform maintenance, and specifically comprises:
acquiring the position of a tail gas purification equipment maintenance station, and drawing a circle with a preset radius by taking the tail gas purification equipment maintenance station as a circle center to acquire a monitoring notification range;
acquiring the number of times of overhaul before the current system of the vehicle tail gas purification equipment which can be informed in the monitoring and informing range, and marking the number as Ce;
the net residual value of the vehicle and the maintenance times of the vehicle tail gas purification equipment can be informed to be normalized by using a formula
Obtaining a notification value Hk; wherein r1 and r2 are preset proportionality coefficients;
and sequencing the notification values according to the numerical values, and displaying the sequencing of the mobile phone numbers of the car owners capable of notifying the vehicles corresponding to the notification values on a terminal of the maintenance station of the tail gas purification equipment.
6. An exhaust emission monitoring method for a motor vehicle, which is applied to an exhaust emission monitoring system for a motor vehicle according to any one of claims 1 to 5, comprising the steps of:
the method comprises the following steps: monitoring the tail gas purification equipment, and providing an optimal tail gas purification equipment maintenance station for a vehicle owner with abnormal tail gas purification equipment;
step two: evaluating the net residual value of the tail gas purification equipment of the vehicle, and marking the vehicle to be informed;
step three: the tail gas purification equipment maintenance station monitors and informs the owner of the vehicle to carry out maintenance within the range.
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