Disclosure of Invention
In view of the foregoing, it is necessary to provide a vehicle air pressure leakage early warning method, device, electronic equipment and storage medium, so as to solve the technical problems in the prior art that parameters required to be acquired in a detection method for whether brake air pressure is leaked are more, and the parameters are difficult to accurately acquire, upload and store offline.
In order to solve the above problems, the present invention provides a vehicle air pressure leakage early warning method, comprising:
acquiring the parking time of a target vehicle and the braking air pressure when the target vehicle starts an engine;
Determining safety air pressure intervals of the vehicle under different parking time lengths according to a preset data analysis method, and constructing a relation model of the parking time lengths and the safety air pressure intervals;
determining a safe air pressure interval corresponding to the parking duration of the target vehicle according to the parking duration and the safe air pressure interval relation model;
and determining the air pressure leakage state of the target vehicle according to the relation between the braking air pressure and the safety air pressure interval when the target vehicle starts the engine.
In one possible implementation manner, the determining, according to a preset data analysis method, a safe air pressure interval of the vehicle under different parking durations includes:
Acquiring historical parking time data of a vehicle, and braking air pressure and historical air pressure leakage information when an engine is started;
and determining a safety air pressure interval corresponding to the parking duration according to the braking air pressures and corresponding historical air pressure leakage information when different engines are started under the same parking duration in the historical parking duration data.
In one possible implementation manner, the determining the safe air pressure interval corresponding to the parking duration according to the braking air pressure and the corresponding historical air pressure leakage information when the engine is started differently in the same parking duration in the historical parking duration data includes:
According to the historical air pressure leakage information, determining an average value of braking air pressure when an engine of a vehicle is braked and air pressure is leaked under the same parking time in the historical parking time data;
And setting a threshold value of the leakage generated by the brake air pressure according to the average value, and determining a safety air pressure interval corresponding to the parking time.
In one possible implementation manner, the determining the safe air pressure interval corresponding to the parking duration according to the braking air pressure and the corresponding historical air pressure leakage information when the engine is started differently in the same parking duration in the historical parking duration data further includes:
According to different air pressure drop rates of vehicles with different leakage degrees, respectively determining the average value of braking air pressure when the vehicles with different leakage degrees start an engine at the same time;
and determining the association relation between the parking time and the air pressure leakage degree according to the average value of the braking air pressure when the vehicles with different leakage degrees start the engine at the same moment.
In one possible implementation, the safe air pressure interval is an interval corresponding to an air pressure value greater than a threshold value.
In one possible implementation manner, the parking duration data of the vehicle comprises a plurality of different types of vehicles, the safety air pressure interval of the vehicle under different parking durations is determined according to a preset data analysis method, and the method further comprises the following steps:
acquiring parking time length data of different types of vehicles, braking air pressure when an engine is started and historical air pressure leakage information of the vehicles;
and determining a safety air pressure interval corresponding to the parking duration of the same type of vehicle according to the braking air pressure and the historical air pressure leakage information of the corresponding vehicle when the same type of vehicle is in the same parking duration and different starting engines.
In one possible implementation manner, the determining the target vehicle air pressure leakage state according to the relation between the brake air pressure and the safety air pressure interval when the target vehicle starts the engine includes:
Judging whether the braking air pressure of the target vehicle when the engine is started is in a safe air pressure interval;
if not, the engine brake of the target vehicle is indicated to leak, and then early warning is sent.
In a second aspect, the present invention also provides a vehicle air pressure leakage warning device, including:
The acquisition module is used for acquiring the parking time of the target vehicle and the braking air pressure when the target vehicle starts the engine;
the model construction module is used for determining the safe air pressure interval of the vehicle under different parking time lengths according to a preset data analysis method and constructing a relation model of the parking time lengths and the safe air pressure interval;
The air pressure determining module is used for determining a safe air pressure interval corresponding to the parking duration of the target vehicle according to the parking duration and the safe air pressure interval relation model;
And the judging module is used for determining the air pressure leakage state of the target vehicle according to the relation between the braking air pressure and the safety air pressure interval when the target vehicle starts the engine.
In a third aspect, the present invention also provides an electronic device, comprising a processor and a memory;
The memory has stored thereon a computer readable program executable by the processor;
The processor, when executing the computer readable program, implements the steps in the vehicle air pressure leakage warning method as described above.
In a fourth aspect, the present invention also provides a computer-readable storage medium storing one or more programs executable by one or more processors to implement steps in a vehicle air pressure leakage warning method as described above.
The method has the advantages that firstly, the parking time length of the target vehicle and the braking air pressure when the target vehicle starts the engine are obtained, the collection of vehicle state quantity is reduced, then, the safety air pressure intervals of the vehicle under different parking time lengths are determined according to a preset data analysis method, a relation model about the parking time length and the safety air pressure intervals is built, the safety air pressure intervals corresponding to the parking time length of the target vehicle are determined according to the relation model, and finally, whether the engine braking of the target vehicle is leaked or not is judged according to the relation between the braking air pressure and the safety air pressure intervals when the target vehicle starts the engine. According to the invention, by establishing the relation model between the parking time and the safe air pressure interval, only the parking time and the braking air pressure when the engine is started are required to be obtained, so that whether the vehicle brakes leak or not and the degree of air pressure leakage are qualitatively analyzed, the acquisition of vehicle parameters is reduced, and the qualitative analysis of the relation model is established, so that the method is suitable for any scene and vehicle, the calculation is simplified, and the judging efficiency of air pressure leakage is improved.
Detailed Description
The following detailed description of preferred embodiments of the application is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the application, are used to explain the principles of the application and are not intended to limit the scope of the application.
In one embodiment of the present invention, a vehicle air pressure leakage early warning method is disclosed, please refer to fig. 1, comprising:
S101, acquiring the parking time of a target vehicle and the braking air pressure when the target vehicle starts an engine;
s102, determining safety air pressure intervals of vehicles under different parking time periods according to a preset data analysis method, and constructing a relation model of the parking time periods and the safety air pressure intervals;
S103, determining a safe air pressure interval corresponding to the parking duration of the target vehicle according to the parking duration and the safe air pressure interval relation model;
s104, determining the air pressure leakage state of the target vehicle according to the relation between the braking air pressure and the safety air pressure interval when the target vehicle starts the engine.
In this embodiment, firstly, the parking duration of the target vehicle and the braking air pressure when the target vehicle starts the engine are obtained, the collection of vehicle state quantity is reduced, then, the safe air pressure intervals of the vehicle under different parking durations are determined according to a preset data analysis method, and a relation model about the parking duration and the safe air pressure intervals is constructed, so that the safe air pressure interval corresponding to the parking duration of the target vehicle is determined according to the relation model, and finally, whether the engine braking of the target vehicle is leaked or not is judged according to the relation between the braking air pressure and the safe air pressure interval when the target vehicle starts the engine. According to the invention, by establishing the relation model between the parking time and the safe air pressure interval, only the parking time and the braking air pressure when the engine is started are required to be obtained, so that whether the vehicle brakes leak or not and the degree of air pressure leakage are qualitatively analyzed, the acquisition of vehicle parameters is reduced, and the qualitative analysis of the relation model is established, so that the method is suitable for any scene and vehicle, the calculation is simplified, and the judging efficiency of air pressure leakage is improved.
It should be noted that the preset data analysis method includes analyzing data using a predefined rule, model or algorithm, and processing the data through rules and logic, generally based on domain knowledge or experience, without relying on a large amount of training data and a complex model training process. Specifically, in the process of determining the safety air pressure interval of the vehicle, the safety air pressure ranges under different parking time periods are determined through the threshold value, complex machine learning model training and parameter tuning processes are not needed, calculation of early warning of vehicle air pressure leakage is simplified, and calculation efficiency of air pressure leakage is improved.
Further, since the air pressure leakage rates or the initial air pressure values of different types of vehicles are different, the model of the relationship between the parking time and the safety air pressure interval comprises a plurality of different types of vehicles.
In some embodiments, the determining the safe air pressure interval of the vehicle under different parking durations according to the preset data analysis method, referring to fig. 2, includes:
S201, acquiring historical parking time data of a vehicle, and braking air pressure and historical air pressure leakage information when an engine is started;
S202, determining a safety air pressure interval corresponding to the parking duration according to braking air pressures and corresponding historical air pressure leakage information when different engines are started under the same parking duration in the historical parking duration data.
In this embodiment, a large amount of historical data is collected and arranged, the braking air pressure of the same type of vehicle at the same moment is drawn, the safety threshold value of the braking air pressure is determined according to the air pressure leakage information, and when the air pressure of the vehicle is greater than the safety threshold value, the vehicle is in a normal pressure release category without alarming. Thereby determining the corresponding safe air pressure interval of the vehicle at the moment. According to the method and the steps, the safety air pressure intervals corresponding to the vehicles at different moments are determined.
Therefore, the real-time monitoring system is integrated, the data such as the braking air pressure and the parking time of the vehicle are obtained in real time through the sensor and fed back to the system in time, so that the real-time monitoring of the state of the vehicle can be realized, and actions can be taken in time when needed. And monitoring the braking air pressure and the parking time data of the vehicle, finding out abnormal conditions in time and triggering early warning. For example, when the brake air pressure is abnormally decreased or the air pressure leakage rate is abnormally increased, the system can automatically give an alarm to remind maintenance personnel to overhaul.
In some embodiments, the determining the safe air pressure interval corresponding to the parking duration according to the braking air pressure and the corresponding historical air pressure leakage information when starting the engine in the same parking duration in the historical parking duration data, please refer to fig. 3, includes:
s301, determining an average value of braking air pressure when an engine is started when air pressure leakage occurs in vehicle engine braking under the same parking time in historical parking time data according to historical air pressure leakage information;
s302, setting a threshold value for generating leakage of the brake air pressure according to the average value, and determining a safety air pressure interval corresponding to the parking duration.
In the present embodiment, first, the average value of the brake air pressure at the time of starting the vehicle engine in the same parking period is calculated as the reference value based on the history data. And determining a threshold value for generating leakage of brake air pressure according to the air pressure leakage information, wherein the threshold value is determined according to historical leakage air pressure average values of a plurality of vehicles at the same moment. Specifically, each vehicle may have brake air pressure leakage during parking, which is manifested as an increase over time and a gradual decrease in pressure. And combining the brake air pressure average value with a set air pressure leakage threshold value to determine a safety air pressure interval corresponding to the parking time.
In some embodiments, the determining the safe air pressure interval corresponding to the parking duration according to the braking air pressure and the corresponding historical air pressure leakage information when the engine is started differently in the same parking duration in the historical parking duration data further includes:
According to different air pressure drop rates of vehicles with different leakage degrees, respectively determining the average value of braking air pressure when the vehicles with different leakage degrees start an engine at the same time;
and determining the association relation between the parking time and the air pressure leakage degree according to the average value of the braking air pressure when the vehicles with different leakage degrees start the engine at the same moment.
In this embodiment, a large amount of historical data is collected and managed, the average value of the starting engine brake air pressure of vehicles with different leakage degrees at the same moment is determined, and then a relation model of parking time and brake air pressure corresponding to the vehicle leakage degrees is built, so that the degree of leakage of the target vehicle can be qualitatively judged through the relation model of the leakage degrees, if the vehicle is at a slight leakage degree, the vehicle can still continue to run for a period of time, and if the vehicle is at a serious leakage degree, a horse is required to be erected for maintenance.
Therefore, through the research on the relation between the parking time length and the braking air pressure of the vehicles with different leakage degrees in the embodiment, the safety and the reliability of the vehicle braking system can be improved, the potential danger caused by the problem of the braking system is reduced, the vehicle maintenance plan is optimized, the leakage problem of the braking system is ensured to be found and repaired in time, and the running efficiency and the safety level of the whole motorcade are improved.
In a specific embodiment, vehicles with different degrees of leakage, the rate of descent of the curve is different, and the low point reached by the descent is different.
Further, the performance of the braking system for different types of vehicles or under different driving conditions may also be studied to determine if there is a difference in the performance of the braking system for a particular type of vehicle or driving condition. And a customized maintenance strategy and a security policy aiming at specific vehicles or driving conditions are formulated, so that the security and reliability level of the whole motorcade is further improved. Meanwhile, how to realize real-time monitoring and prediction maintenance of the braking system by using an advanced sensing technology and a data analysis algorithm can be discussed so as to ensure that potential safety problems are timely found and solved in the running process of the vehicle.
In some embodiments, the parking time length data of the vehicle comprises a plurality of different types of vehicles, the safety air pressure interval of the vehicle under different parking time lengths is determined according to a preset data analysis method, and the method further comprises the following steps:
acquiring parking time length data of different types of vehicles, braking air pressure when an engine is started and historical air pressure leakage information of the vehicles;
and determining a safety air pressure interval corresponding to the parking duration of the same type of vehicle according to the braking air pressure and the historical air pressure leakage information of the corresponding vehicle when the same type of vehicle is in the same parking duration and different starting engines.
In this embodiment, first, parking time data of a plurality of different types of vehicles, brake air pressure when starting an engine, and historical air pressure leakage information of the vehicles are acquired, and these data may be from a vehicle monitoring system, a history record, or other data sources. Different types of vehicles are classified, for example, according to the type of vehicle, manufacturer or model of vehicle, etc. An analysis is then performed for each class of vehicle. For the same type of vehicle, determining a safety air pressure interval corresponding to the parking duration of the type of vehicle according to braking air pressures and corresponding air pressure leakage information when the same parking duration is different for starting the engine.
Further, according to the characteristics of different types of vehicles and the data analysis result, the setting of the safe air pressure interval may need to be adjusted and optimized to ensure that the safe air pressure interval is suitable for various vehicles and improve the accuracy and reliability of prediction.
In a specific embodiment, the actual brake pressure measured values of different parking times of different vehicles are shown in table 1, wherein the brake pressure is reduced to 440 after the vehicle 1 is parked for 7 hours, and is lower than the set safety threshold 517, and the vehicle is judged to have large brake pressure leakage and needs to be warned. The vehicle No. 2 is parked for 12 hours, the brake air pressure is reduced to 528 and is higher than the set safety threshold 492, and it is determined that the vehicle brake air pressure leakage amount is not large, and warning is not required.
TABLE 1 brake barometer for different vehicles
In some embodiments, the determining the vehicle air pressure leakage state according to the relation between the braking air pressure and the safe air pressure interval when the target vehicle starts the engine includes:
Judging whether the braking air pressure of the target vehicle when the engine is started is in a safe air pressure interval;
if not, the engine brake of the target vehicle is indicated to leak, and then early warning is sent.
In this embodiment, by comparing the relationship between the engine brake air pressure and the safety air pressure interval of the target vehicle, whether the vehicle leaks or not can be qualitatively analyzed, so as to determine whether an early warning needs to be sent or not.
Specifically, when a vehicle whose brake circuit has a leak is parked, the air pressure value of each circuit is gradually reduced. When the engine is restarted, the leakage effect of the brake circuit can be judged according to the air pressure value. The specific operation process is as follows:
and 1, calculating the parking time of the vehicle.
The corresponding parking time can be known as time_park=time_start-time_shutdown from the time of stopping the vehicle at the engine stop (time_shutdown) to the time of starting the engine at the vehicle start (time_start).
When the vehicle is started, the brake air pressure_start at the time of starting the engine of the vehicle can be obtained.
A two-dimensional table is drawn with time_working as the x-axis and pressure_start as the y-axis, and the threshold pressure_threshold at different times is set.
The pressure_start > pressure_threshold is compared with the pressure thresholds at different stopping time periods, and the situation that the braking air pressure leakage of the vehicle is small or not can be judged.
The pressure_start < pressure_threshold can determine that the brake air pressure leakage of the vehicle is large enough, and prompt or even alarm is needed.
Based on the foregoing vehicle air pressure leakage early warning method, the embodiment of the invention also provides a vehicle air pressure leakage early warning device, please refer to fig. 4, which includes an acquisition module 410, a model construction module 420, an air pressure determination module 430 and a judgment module 440.
An acquisition module 410 for acquiring a parking time period of the target vehicle and a brake air pressure when the target vehicle starts the engine;
The model construction module 420 is configured to determine a safe air pressure interval of the vehicle under different parking durations according to a preset data analysis method, and construct a relationship model between the parking durations and the safe air pressure interval;
The air pressure determining module 430 is configured to determine a safe air pressure interval corresponding to the parking duration of the target vehicle according to the parking duration and the safe air pressure interval relation model;
the judging module 440 is configured to determine a target vehicle air pressure leakage state according to a relationship between the brake air pressure and the safe air pressure interval when the engine is started by the current measurement.
As shown in fig. 5, based on the foregoing vehicle air pressure leakage early warning method, the present invention further provides an electronic device, which may be a computing electronic device such as a mobile terminal, a desktop computer, a notebook computer, a palm computer, and a server. The electronic device includes a processor 510, a memory 520, and a display 530. Fig. 5 shows only some of the components of the electronic device, but it should be understood that not all of the illustrated components are required to be implemented and that more or fewer components may be implemented instead.
The memory 520 may be an internal storage unit of the electronic device, such as a hard disk or memory of the electronic device, in some embodiments. The memory 520 may also be an external storage electronic device of the electronic device in other embodiments, such as a plug-in hard disk provided on the electronic device, a smart memory card (SMART MEDIA CARD, SMC), a Secure Digital (SD) card, a flash memory card (FLASH CARD), or the like. Further, the memory 520 may also include both internal storage units and external storage electronic devices. The memory 520 is used for storing application software installed on the electronic device and various data, such as program codes for installing the electronic device. The memory 520 may also be used to temporarily store data that has been output or is to be output. In an embodiment, the memory 520 stores a vehicle air pressure leakage pre-warning program 540, and the vehicle air pressure leakage pre-warning program 540 can be executed by the processor 510, so as to implement the vehicle air pressure leakage pre-warning method according to the embodiments of the present application.
The processor 510 may be, in some embodiments, a central processing unit (Central Processing Unit, CPU), microprocessor or other data processing chip for executing program code or processing data stored in the memory 520, such as for performing vehicle air pressure leak warning methods, etc.
The display 530 may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch, or the like in some embodiments. The display 530 is used for displaying information on the vehicle air pressure leakage warning electronic device and for displaying a visual user interface. The components 510-530 of the electronic device communicate with each other over a system bus.
Those skilled in the art will appreciate that all or part of the flow of the methods of the embodiments described above may be accomplished by way of a computer program to instruct associated hardware, where the program may be stored on a computer readable storage medium. Wherein the computer readable storage medium is a magnetic disk, an optical disk, a read-only memory or a random access memory, etc.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.