CN111505430A - Charging data recording method and recorder for electric vehicle charging pile - Google Patents
Charging data recording method and recorder for electric vehicle charging pile Download PDFInfo
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R13/00—Arrangements for displaying electric variables or waveforms
- G01R13/04—Arrangements for displaying electric variables or waveforms for producing permanent records
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
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Abstract
The application discloses an electric automobile charging pile charging data recording method and a recorder can record fault voltage, current signals and other related data when an electric automobile charging pile breaks down, and carry out fault analysis and improvement of the electric automobile charging pile next time according to measured data, so that the safety and reliability of the electric automobile charging pile are improved. Compare with current electric automobile charging station, this application electric automobile fills electric pile is comprehensive, perfect to electric automobile charging process's control, can acquire the relevant data when electric automobile takes place to charge the trouble to be favorable to the reason that the analysis trouble that charges takes place.
Description
Technical Field
The application relates to the technical field of automobile charging equipment, in particular to a charging data recording method and a recorder for an electric automobile charging pile.
Background
The electric automobile is a vehicle taking a vehicle-mounted power supply as power, is an important component in the field of new energy, has good low-carbon and environment-friendly characteristics, and is widely recognized, popularized and used at present. In the process of popularizing electric vehicles, the electric vehicle charging stations arranged as a basis are also successively deployed and put into operation.
However, the existing electric vehicle charging station has many problems, for example, the safety monitoring system is not perfect enough, once a safety accident such as electric shock and fire occurs, it is difficult to obtain the relevant data of the electric vehicle charging station before and during the accident, so that the reason of the accident is difficult to analyze, and the development of the electric vehicle charging station and the electric vehicle is hindered.
Disclosure of Invention
The application provides a charging data recording method and a recorder for an electric vehicle charging pile, which are used for solving the problems that a safety monitoring system of an existing electric vehicle charging station is not perfect, and related data of the electric vehicle charging station before and during an accident are difficult to acquire, so that the reason of the accident is difficult to analyze.
In a first aspect, the application provides a charging data recording method for an electric vehicle charging pile, including:
collecting real-time voltage, real-time current and message information of a charging pile, and caching and recording;
calibrating the charging state of the charging pile by utilizing the real-time voltage and the real-time current of the charging pile, and specifically comprising the steps of acquiring the state of a charging gun, and acquiring a voltage rated value and a current rated value in corresponding states according to the state of the charging gun, wherein the state of the charging gun comprises a connection state, a charging state and a non-charging state; judging whether the real-time voltage of the charging pile exceeds or is less than 10% of a voltage rated value or not and whether the real-time current exceeds or is less than 10% of a current rated value or not, if the real-time voltage of the charging pile exceeds or is less than 10% of the voltage rated value or the real-time current exceeds or is less than 10% of the current rated value, marking the charging pile as abnormal charging, otherwise, marking the charging pile as normal charging;
calibrating the charging state of the charging pile by using the message information, and specifically comprising the steps of judging the charging stage of the charging pile according to the message information, wherein the charging stage comprises a physical connection layer stage, a low-voltage auxiliary power-on stage, a charging handshake stage, a charging parameter configuration stage, a charging stage and a charging finishing stage; according to the charging stage of the charging pile, acquiring the standard response time of the message corresponding to the charging stage; judging whether the BMS and the charger receive the corresponding messages or not, if so, marking the charging piles as abnormal charging, otherwise, marking the charging piles as normal charging;
judging whether a charging fault exists in the charging pile, specifically, if the charging pile is detected to be calibrated as charging abnormity at least once, judging that the charging pile has the charging fault, and transferring the recorded real-time voltage, real-time current and message information to a memory; and if the charging pile is detected not to be calibrated as abnormal charging, deleting the recorded real-time voltage, real-time current and message information.
Optionally, it is determined whether the storage amount of the memory exceeds 80% of the total storage space, and if the storage amount of the memory exceeds 80% of the total storage space, the earliest data information stored in the memory is deleted.
Optionally, the method for recording the charging data of the electric vehicle charging pile further comprises the steps of collecting temperature and humidity parameters around the charging pile, and performing cache recording.
In a second aspect, the application further provides an electric vehicle charging pile charging data recording recorder, which comprises a controller, and a data acquisition unit, a data cache module, an abnormality calibration unit, a fault judgment module and a memory which are all connected with the controller, wherein the controller is used for controlling or coordinating actions or operations among the devices, units or modules;
the data acquisition unit is used for acquiring real-time voltage, real-time current and message information of the charging pile;
the data caching module is used for caching and recording the real-time voltage, the real-time current and the message information of the charging pile acquired by the data acquisition unit;
the abnormity calibration unit comprises an electrical quantity monitoring unit and a message monitoring unit,
the electric quantity monitoring unit comprises a charging gun state acquisition module, a rated value acquisition module and a first abnormity determination module, wherein the charging gun state acquisition module is used for acquiring a charging gun state, and the charging gun state comprises a connection state, a charging state and a non-charging state; the rated value acquisition module is used for acquiring a voltage rated value and a current rated value in a corresponding state according to the state of the charging gun; the first abnormity determining module is used for judging whether the real-time voltage of the charging pile exceeds or is less than 10% of a voltage rated value and whether the real-time current exceeds or is less than 10% of a current rated value, if the real-time voltage of the charging pile exceeds or is less than 10% of the voltage rated value or the real-time current exceeds or is less than 10% of the current rated value, the charging pile is marked as abnormal charging, otherwise, the charging pile is marked as normal charging;
the message monitoring unit comprises a stage judgment module, a response time acquisition module and a second abnormity judgment module, wherein the stage judgment module is used for judging a charging stage of the charging pile according to message information, and the charging stage comprises a physical connection layer stage, a low-voltage auxiliary power-on stage, a charging handshake stage, a charging parameter configuration stage, a charging stage and a charging finishing stage; the response time acquisition module is used for acquiring the standard response time of the message corresponding to the charging stage according to the charging stage of the charging pile; the second abnormity judging module is used for judging whether the corresponding messages received by the BMS and the charger are overtime or not, if the corresponding messages received by the BMS and the charger are overtime, the charging pile is marked as abnormal charging, otherwise, the charging pile is marked as normal charging;
the fault judgment module is used for judging whether a charging fault exists in the charging pile;
the memory is used for storing the real-time voltage, the real-time current and the message information which are cached and recorded by the data caching module;
the electric automobile fills electric pile charging data record appearance still includes the data and clears away the module, the one end of data is clear away the module and is connected the fault determination module, the one end of data is clear away the module and is connected the data cache module, the data is clear away the module and is used for deleting real-time voltage, real-time electric current and the message information of data cache module cache record.
Optionally, the electric vehicle charging pile charging data recorder further comprises a storage amount counting module, and the storage amount counting module is used for counting whether the storage amount of the storage exceeds 80% of the total storage space.
Optionally, the data caching module is further configured to cache and record temperature and humidity parameters around the charging pile.
The application provides an electric automobile charging pile charging data recording method and a recorder, which can record relevant data such as fault voltage and current signals when an electric automobile charging pile breaks down, and carry out fault analysis and improvement of the electric automobile charging pile next time according to measured data, thereby improving the safety and reliability of the electric automobile charging pile. Compare with current electric automobile charging station, this application electric automobile fills electric pile is comprehensive, perfect to electric automobile charging process's control, can acquire the relevant data when electric automobile takes place to charge the trouble to be favorable to the reason that the analysis trouble that charges takes place.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flowchart of a charging data recording method for an electric vehicle charging pile according to the present application;
FIG. 2 is a schematic structural diagram of the charging data recorder of the electric vehicle charging pile according to the application;
the reference numerals in fig. 1-2 denote: the system comprises a data acquisition unit, a 2-controller, a 3-abnormity calibration unit, a 31-electric quantity monitoring unit, a 311-charging gun state acquisition module, a 312-rated value acquisition module, a 313-first abnormity judgment module, a 32-message monitoring unit, a 321-stage judgment module, a 322-response time acquisition module, a 323-second abnormity judgment module, a 4-data cache module, a 5-fault judgment module, a 6-data clearing module and a 7-memory.
Detailed Description
The application provides a method for recording charging data of an electric vehicle charging pile, fig. 1 is a flow chart of the method for recording the charging data of the electric vehicle charging pile, and as shown in fig. 1, the method for recording the charging data of the electric vehicle charging pile comprises the following steps.
And S100, acquiring real-time voltage, real-time current and message information of the charging pile, and caching and recording.
In order to enable more comprehensive data to be provided for analyzing accidents when safety accidents such as electric shock and fire happen, the method for recording the charging data of the electric automobile charging pile further comprises the steps of collecting temperature and humidity parameters around the charging pile and carrying out cache recording. Of course, those skilled in the art may collect and cache other parameters around the charging pile according to actual needs, which all belong to the protection scope of the present application.
Step S210, calibrating the charging state of the charging pile by using the real-time voltage and the real-time current of the charging pile, specifically comprising,
step S211, acquiring a charging gun state, and acquiring a voltage rated value and a current rated value in a corresponding state according to the charging gun state, wherein the charging gun state comprises a connection state, a charging state and a non-charging state;
step S212, judging whether the real-time voltage of the charging pile exceeds or is less than 10% of the rated voltage value and whether the real-time current exceeds or is less than 10% of the rated current value, if the real-time voltage of the charging pile exceeds or is less than 10% of the rated voltage value or the real-time current exceeds or is less than 10% of the rated current value, marking the charging pile as abnormal charging, otherwise, marking the charging pile as normal charging.
Step S220, utilizing the message information to calibrate the charging state of the charging pile, specifically comprising,
step S221, judging a charging stage of the charging pile according to the message information, wherein the charging stage comprises a physical connection layer stage, a low-voltage auxiliary electrifying stage, a charging handshake stage, a charging parameter configuration stage, a charging stage and a charging finishing stage;
step S222, according to the charging stage, obtaining the message standard response time corresponding to the charging stage;
step S223, determining whether the BMS (battery management system) and the charger receive the corresponding message overtime, if the BMS and the charger receive the corresponding message overtime, marking the charging post as abnormal, otherwise, marking the charging post as normal.
In the application, the specific implementation process of judging whether the corresponding messages received by the BMS and the charger are overtime conforms to the relevant regulations in GB/T34658-2017, and the specific implementation process will not be described herein again.
Step S300, judging whether the charging fault exists in the charging pile, specifically, if the charging pile is detected to be calibrated as abnormal charging at least once, judging that the charging pile has the charging fault, and transferring the recorded real-time voltage, real-time current and message information to a memory; and if the charging pile is detected not to be calibrated as abnormal charging, deleting the recorded real-time voltage, real-time current and message information.
In order to ensure that the memory has enough data storage space, in this example, the method for recording charging data of the charging pile of the electric vehicle further includes determining whether the storage capacity of the memory exceeds 80% of the total storage space, and deleting the earliest data information stored in the memory if the storage capacity of the memory exceeds 80% of the total storage space.
The application still provides an electric automobile fills electric pile charge data recorder, fig. 2 is this application electric automobile fills electric pile charge data recorder's schematic structure, as shown in fig. 2, electric automobile fills electric pile charge data recorder and includes controller 2 and all data acquisition unit 1, data cache module 4, unusual calibration unit 3, failure judgment module 5 and memory 7 connected with affiliated controller 2, wherein, controller 2 is used for controlling or coordinating the action or the operation between above-mentioned device, unit or the module.
The data acquisition unit 1 is used for acquiring real-time voltage, real-time current and message information of the charging pile, and the data cache module 4 is used for caching and recording the real-time voltage, the real-time current and the message information of the charging pile acquired by the data acquisition unit 1.
In order to enable more comprehensive data to be provided for analyzing accidents when safety accidents such as electric shock and fire happen, in this embodiment, the data acquisition unit 1 is further configured to acquire temperature and humidity parameters around the charging pile, and the data cache module 4 is further configured to cache and record the temperature and humidity parameters around the charging pile. Of course, those skilled in the art may collect and cache other parameters around the charging pile according to actual needs, which all belong to the protection scope of the present application.
The abnormality calibration unit 3 includes an electrical quantity monitoring unit 31 and a message monitoring unit 32, the electrical quantity monitoring unit 31 includes a charging gun state obtaining module 311, a rating obtaining module 312, and a first abnormality determining module 313, the charging gun state obtaining module 311 is configured to obtain a charging gun state, where the charging gun state includes a connection state, a charging state, and a non-charging state; the rated value obtaining module 312 is configured to obtain a voltage rated value and a current rated value in a corresponding state according to a state of the charging gun; the first anomaly determination module 313 is configured to determine whether the real-time voltage of the charging pile exceeds or is less than 10% of the voltage rated value, and whether the real-time current of the charging pile exceeds or is less than 10% of the current rated value, and if the real-time voltage of the charging pile exceeds or is less than 10% of the voltage rated value, or the real-time current of the charging pile exceeds or is less than 10% of the current rated value, the charging pile is determined to be charging anomaly.
The message monitoring unit 32 includes a stage determining module 321, a response time obtaining module 322, and a second anomaly determining module 323, where the stage determining module 321 is configured to determine a charging stage of the charging pile according to the message information, where the charging stage includes a physical connection layer stage, a low-voltage auxiliary power-on stage, a charging handshake stage, a charging parameter configuration stage, a charging stage, and a charging end stage; the response time obtaining module 322 is configured to obtain, according to the charging stage, a standard response time of the message corresponding to the charging stage; the second anomaly determination module 323 is configured to determine whether the BMS and the charger receive the corresponding message overtime, and if the BMS and the charger receive the corresponding message overtime, the charging pile is marked as charging anomaly.
In the present application, the specific implementation process of the second anomaly determination module 323 meets the relevant regulations in GB/T34658 and 2017, and the specific implementation process thereof will not be described herein again.
And the fault judgment module 5 is used for judging whether the charging pile has charging abnormity. The judging process of the fault judging module 5 comprises the steps of judging that a charging fault exists in the charging pile if the charging pile is detected to be calibrated as charging abnormity at least once, and transferring the recorded real-time voltage, real-time current and message information to the memory 7; and if the charging pile is detected not to be calibrated as abnormal charging, deleting the recorded real-time voltage, real-time current and message information.
The electric automobile fills electric pile charging data record appearance still includes data and clears away module 6, the one end of data is cleared away the module 6 and is connected fault determination module 5, the one end of data is cleared away the module 6 and is connected data cache module 4, data are clear away module 6 and are used for deleting real-time voltage, real-time current and the message information of data cache module 4 cache record.
The memory 7 is used for storing the real-time voltage, the real-time current and the message information which are cached and recorded by the data caching module 4.
During actual use, if the fault judgment module 5 detects that the charging pile is calibrated to be abnormal for charging at least once, it is determined that a charging fault exists in the charging pile, and the controller 2 transfers the real-time voltage, the real-time current and the message information recorded in the data cache module 4 to the memory 7. If the fault judgment module 5 detects that the charging pile is not calibrated to be abnormal in charging, the controller 2 deletes the real-time voltage, the real-time current and the message information recorded in the data cache module 4 by the control data cleaning module.
In order to ensure that the memory 7 has enough data storage space, in this example, the electric vehicle charging pile charging data recorder further includes a memory amount counting module, and the memory amount counting module is used for counting whether the memory amount of the memory 7 exceeds 80% of the total storage space. If the storage capacity of the memory 7 exceeds 80% of the total storage space, the data clearing module 6 will delete the earliest data information stored in the memory 7.
The application provides an electric automobile charging pile charging data recording method and a recorder, which can record relevant data such as fault voltage and current signals when an electric automobile charging pile breaks down, and carry out fault analysis and improvement of the electric automobile charging pile next time according to measured data, thereby improving the safety and reliability of the electric automobile charging pile. Compare with current electric automobile charging station, this application electric automobile fills electric pile is comprehensive, perfect to electric automobile charging process's control, can acquire the relevant data when electric automobile takes place to charge the trouble to be favorable to the reason that the analysis trouble that charges takes place.
The above-described embodiments of the present application do not limit the scope of the present application.
Claims (6)
1. The method for recording the charging data of the electric automobile charging pile is characterized by comprising the following steps:
collecting real-time voltage, real-time current and message information of a charging pile, and caching and recording;
calibrating the charging state of the charging pile by utilizing the real-time voltage and the real-time current of the charging pile, and specifically comprising the steps of acquiring the state of a charging gun, and acquiring a voltage rated value and a current rated value in corresponding states according to the state of the charging gun, wherein the state of the charging gun comprises a connection state, a charging state and a non-charging state; judging whether the real-time voltage of the charging pile exceeds or is less than 10% of a voltage rated value or not and whether the real-time current exceeds or is less than 10% of a current rated value or not, if the real-time voltage of the charging pile exceeds or is less than 10% of the voltage rated value or the real-time current exceeds or is less than 10% of the current rated value, marking the charging pile as abnormal charging, otherwise, marking the charging pile as normal charging;
calibrating the charging state of the charging pile by using the message information, and specifically comprising the steps of judging the charging stage of the charging pile according to the message information, wherein the charging stage comprises a physical connection layer stage, a low-voltage auxiliary power-on stage, a charging handshake stage, a charging parameter configuration stage, a charging stage and a charging finishing stage; according to the charging stage of the charging pile, acquiring the standard response time of the message corresponding to the charging stage; judging whether the BMS and the charger receive the corresponding messages or not, if so, marking the charging piles as abnormal charging, otherwise, marking the charging piles as normal charging;
judging whether a charging fault exists in the charging pile, specifically, if the charging pile is detected to be calibrated as charging abnormity at least once, judging that the charging pile has the charging fault, and transferring the recorded real-time voltage, real-time current and message information to a memory; and if the charging pile is detected not to be calibrated as abnormal charging, deleting the recorded real-time voltage, real-time current and message information.
2. The method for recording the charging data of the electric vehicle charging pile according to claim 1, wherein whether the storage capacity of the memory exceeds 80% of the total storage space is judged, and if the storage capacity of the memory exceeds 80% of the total storage space, the earliest data information stored in the memory is deleted.
3. The method for recording the charging data of the electric vehicle charging pile according to claim 1, further comprising the steps of collecting temperature and humidity parameters around the charging pile and performing cache recording.
4. The charging data recorder for the electric automobile charging pile is characterized by comprising a controller (2), a data acquisition unit (1), a data cache module (4), an abnormity calibration unit (3), a fault judgment module (5) and a memory (7), wherein the data acquisition unit, the data cache module, the abnormity calibration unit (3), the fault judgment module and the memory (7) are all connected with the controller (2), and the controller (2) is used for controlling or coordinating actions or operations among the devices, units or modules;
the data acquisition unit (1) is used for acquiring real-time voltage, real-time current and message information of the charging pile;
the data caching module (4) is used for caching and recording the real-time voltage, the real-time current and the message information of the charging pile acquired by the data acquisition unit (1);
the abnormality calibration unit (3) comprises an electrical quantity monitoring unit (31) and a message monitoring unit (32),
the electric quantity monitoring unit (31) comprises a charging gun state obtaining module (311), a rated value obtaining module (312) and a first abnormity judging module (313), wherein the charging gun state obtaining module (311) is used for obtaining a charging gun state, and the charging gun state comprises a connection state, a charging state and a non-charging state; the rated value acquisition module (312) is used for acquiring a voltage rated value and a current rated value in a corresponding state according to the state of the charging gun; the first abnormity determining module (313) is used for determining whether the real-time voltage of the charging pile exceeds or is less than 10% of a voltage rated value and whether the real-time current exceeds or is less than 10% of a current rated value, if the real-time voltage of the charging pile exceeds or is less than 10% of the voltage rated value or the real-time current exceeds or is less than 10% of the current rated value, the charging pile is marked as abnormal charging, otherwise, the charging pile is marked as normal charging;
the message monitoring unit (32) comprises a stage judgment module (321), a response time acquisition module (322) and a second abnormity judgment module (323), wherein the stage judgment module (321) is used for judging a charging stage of the charging pile according to message information, and the charging stage comprises a physical connection layer stage, a low-voltage auxiliary power-on stage, a charging handshake stage, a charging parameter configuration stage, a charging stage and a charging finishing stage; the response time acquisition module (322) is used for acquiring the standard response time of the message corresponding to the charging stage according to the charging stage of the charging pile; the second abnormity determining module (323) is used for determining whether the corresponding messages received by the BMS and the charger are overtime, if the corresponding messages received by the BMS and the charger are overtime, the charging pile is marked as abnormal charging, otherwise, the charging pile is marked as normal charging;
the fault judgment module (5) is used for judging whether a charging fault exists in the charging pile;
the memory (7) is used for storing the real-time voltage, the real-time current and the message information which are cached and recorded by the data caching module (4);
the electric automobile fills electric pile charging data record appearance still includes data and clears away module (6), the one end of data is cleared away the module (6) and is connected fault determination module (5), the one end of data is cleared away the module (6) and is connected data cache module (4), data are clear away module (6) and are used for deleting data cache module (4) cache recorded real-time voltage, real-time current and message information.
5. The electric vehicle charging pile charging data recorder according to claim 4, wherein the electric vehicle charging pile charging data recorder further comprises a storage amount counting module, and the storage amount counting module is used for counting whether the storage amount of the storage (7) exceeds 80% of the total storage space.
6. The charging data recorder of the electric vehicle charging pile according to claim 4, wherein the data cache module (4) is further configured to cache and record temperature and humidity parameters around the charging pile.
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