CN115503535B - Secure charging method, apparatus, device and computer readable storage medium - Google Patents
Secure charging method, apparatus, device and computer readable storage medium Download PDFInfo
- Publication number
- CN115503535B CN115503535B CN202211174839.8A CN202211174839A CN115503535B CN 115503535 B CN115503535 B CN 115503535B CN 202211174839 A CN202211174839 A CN 202211174839A CN 115503535 B CN115503535 B CN 115503535B
- Authority
- CN
- China
- Prior art keywords
- charging
- charging pile
- state
- pile system
- safety
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a safe charging method, a device, equipment and a computer readable storage medium, wherein the charging method comprises the following steps: monitoring state parameters of related equipment in a charging pile system in a charging state; generating a charging state characteristic quantity of the charging pile system according to the state parameter; generating a safety evaluation result of the charging pile system based on the charging state characteristic quantity; and outputting prompt information of the charging pile system according to the safety evaluation result. According to the invention, the whole charging pile system is evaluated before reaching the threshold value through the preset charging pile classifier, so that the charging state of the charging pile is judged in advance, and the warning prompt problem is avoided when the fault is enlarged or damage is caused. The safety of the charging system in the charging process is enhanced.
Description
Technical Field
The present invention relates to the field of electric vehicles, and in particular, to a method, apparatus, and device for secure charging, and a computer readable storage medium.
Background
The world energy conservation and environmental protection problems are attracting more and more attention due to the continuous exhaustion of petroleum resources and the serious increase of air pollution caused by automobile exhaust emission. Electric automobiles are gradually becoming a hot spot for scientific research because of cleanliness and no pollution, and low-carbon life and sustainable development are promoted by diversified power supplies and countries. The development of the electric automobile industry is promoted, so that the energy resource safety of China is ensured, and the sustainable development of the automobile industry is realized. And the charging pile is used as an infrastructure matched with the electric automobile, and also becomes a key factor for popularizing the electric automobile. The charging pile is the electrical equipment and is usually placed outdoors with higher failure rate, when the charging function can not be completed due to failure, the use experience of the electric automobile user is not only affected, but also the life and property pressing safety of the user can be endangered when serious, the safety diagnosis of the charging pile equipment is usually carried out at present only by setting a protection value based on the charging pile, and certain hysteresis exists according to the judgment of the protection value, so that the safety of the charging pile is not facilitated.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The invention mainly aims to provide a safe charging method, which aims to solve the technical problems that the safety diagnosis of charging pile equipment is usually based on the charging pile only to set a protection value at present, and certain hysteresis exists in judgment according to the protection value, so that the safety of the charging pile is not facilitated.
To achieve the above object, the present invention provides a safety charging method comprising the steps of:
monitoring state parameters of related equipment in a charging pile system in a charging state;
generating a charging state characteristic quantity of the charging pile system according to the state parameter;
generating a safety evaluation result of the charging pile system based on the charging state characteristic quantity;
and outputting prompt information of the charging pile system according to the safety evaluation result.
Further, the charging pile system includes: the charging pile, the transformer connected with the charging pile and the vehicle connected with the charging pile, wherein the step of monitoring the state parameters of related equipment in the charging pile system in a charging state comprises the following steps:
And collecting the state parameters of the charging pile through the collecting equipment configured in the charging pile system, collecting the state parameters of the transformer, and collecting the state parameters of the vehicle, so that the state parameters of the charging pile, the state parameters of the transformer and the state parameters of the vehicle are used as the state parameters of relevant equipment in the monitoring charging pile system in a charging state.
Further, the state parameters of the charging pile system include: and the first output power of the charging pile and the temperature of the charging pile, and the state parameters of the transformer comprise: a second output power of the transformer and a transformer temperature, the vehicle state parameters including: the step of generating the charging state characteristic quantity of the charging pile system according to the state parameter comprises the following steps of:
taking the dispersion among the first output power, the second output power and the input power as a first charging state characteristic quantity of the charging pile system;
taking the difference value between the temperature of the charging pile and a preset charging pile temperature threshold value as a second charging state characteristic quantity of the charging pile system;
taking the difference value between the temperature of the transformer and a preset temperature threshold value of the transformer as a third charging state characteristic quantity of the charging pile system;
Taking the difference value between the vehicle temperature and a preset vehicle temperature threshold value as a fourth charging state characteristic quantity of the charging pile system;
the charge state characteristic quantity comprises a first charge state characteristic quantity, a second charge state characteristic quantity, a third charge state characteristic quantity and a fourth charge state characteristic quantity.
Further, the step of generating the safety evaluation result of the charging pile system based on the charging state characteristic quantity includes:
generating an evaluation unit based on the first state-of-charge feature quantity, the second state-of-charge feature quantity, the third state-of-charge feature quantity, and the fourth state-of-charge feature quantity, wherein the evaluation unit includes any two of the state-of-charge feature quantities;
inputting the evaluation unit into a corresponding preset classifier;
and evaluating the charging pile system through the classifier to generate an evaluation result, wherein the evaluation result is that the charging pile system is normally charged or the charging pile system is abnormally charged.
Further, the step of outputting the prompt message of the charging pile system according to the safety evaluation result includes:
acquiring a safety evaluation result of each classifier;
Counting the number of abnormal charging of the charging pile system in the safety evaluation result;
and outputting safety prompt information of different grades based on the number of abnormal charging of the charging pile system.
Further, after the step of outputting the prompt information of the charging pile system according to the safety evaluation result, the method includes:
comparing the state parameter with a preset dangerous threshold;
and when the state parameter is larger than the preset dangerous threshold, executing a preset safety protection action, and outputting the execution condition of the safety protection action.
Further, after the step of executing the preset safety protection action when the state parameter is greater than the preset dangerous threshold, the method includes:
recording state parameters of a preset time period of related equipment in the charging pile system in a charging state;
and marking the state parameter of the preset time period as an abnormal sample, and inputting the abnormal sample into training samples of each preset charging pile classifier.
In addition, to achieve the above object, the present invention also provides a safety charging device including:
the monitoring module is used for monitoring state parameters of related equipment in the charging pile system in a charging state;
The generation module is used for generating a charging state characteristic quantity of the charging pile system according to the state parameter;
the evaluation module is used for generating a safety evaluation result of the charging pile system based on the charging state characteristic quantity;
and the output module is used for outputting prompt information of the charging pile system according to the safety evaluation result.
In addition, to achieve the above object, the present invention also provides a safety charging device including: the system comprises a memory, a processor and a safety charging program which is stored in the memory and can run on the processor, wherein the safety charging program realizes the steps of the safety charging method when being executed by the processor.
In addition, in order to achieve the above object, the present invention also provides a computer-readable storage medium having stored thereon a secure charging program which, when executed by a processor, implements the steps of the secure charging method as described above.
According to the safe charging method provided by the embodiment of the invention, the state parameters of each device of the charging pile system in the charging state are obtained, the charging state characteristic quantity of the charging pile system is generated, the safety evaluation result of the charging pile system is generated based on the charging state characteristic quantity and the preset charging pile classifier, and the prompt information of the charging pile system is output according to the safety evaluation result. Compared with the prior art, the monitoring platform applying the safe charging method can compare and evaluate the state parameters of the whole charging pile system before reaching the threshold value with a large number of historical parameters through the preset charging pile classifier, so that the safety risk existing when the charging pile continues to charge is judged, prompt information is sent, the warning prompt problem is avoided when the fault is enlarged or damage is caused, and the safety of the charging system in the charging process is enhanced.
Drawings
FIG. 1 is a schematic diagram of a device architecture of a hardware operating environment according to an embodiment of the present invention;
fig. 2 is a flow chart of a first embodiment of the safe charging method of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The main solutions of the embodiments of the present invention are: monitoring state parameters of related equipment in a charging pile system in a charging state; generating a charging state characteristic quantity of the charging pile system according to the state parameter; generating a safety evaluation result of the charging pile system based on the charging state characteristic quantity; and outputting prompt information of the charging pile system according to the safety evaluation result.
Since the safety diagnosis of the charging pile equipment is usually based on the setting of the protection value only by the charging pile at present, certain hysteresis exists in judgment according to the protection value, and the safety of the charging pile is not facilitated.
The invention provides a solution, wherein the charging pile classifier is preset to evaluate the whole charging pile system before reaching a threshold value, so that the charging state of the charging pile is judged in advance, and the warning prompt problem is avoided when the fault is enlarged or damage is caused. The safety of the charging system in the charging process is enhanced.
Referring to fig. 1, fig. 1 is a schematic device structure of a hardware running environment according to an embodiment of the present invention.
The terminal of the embodiment of the invention can be a charging pile, and also can be electronic terminal equipment with data receiving, data processing and data sending functions such as a cloud server, a smart phone, a tablet personal computer, a PC, a portable computer and the like.
As shown in fig. 1, the apparatus may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
Optionally, the device may also include a camera, RF (Radio Frequency) circuitry, sensors, audio circuitry, wiFi modules, and the like. Among other sensors, such as light sensors, motion sensors, and other sensors. In particular, the light sensor may include an ambient light sensor that may adjust the brightness of the display screen according to the brightness of ambient light, and a proximity sensor that may turn off the display screen and/or backlight when the mobile device is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and the direction when the device is stationary, and the device can be used for recognizing the gesture of the mobile device (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; of course, the mobile device may also be configured with other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, and the like, which are not described herein.
It will be appreciated by those skilled in the art that the device structure shown in fig. 1 is not limiting of the device and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
As shown in fig. 1, an operating system, a network communication module, a user interface module, and a secure charging program may be included in a memory 1005, which is a type of computer storage medium.
In the device shown in fig. 1, the network interface 1004 is mainly used for connecting to a background server, and performing data communication with the background server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to call a secure charging program stored in the memory 1005 and perform the following operations:
monitoring state parameters of related equipment in a charging pile system in a charging state;
generating a charging state characteristic quantity of the charging pile system according to the state parameter;
generating a safety evaluation result of the charging pile system based on the charging state characteristic quantity;
and outputting prompt information of the charging pile system according to the safety evaluation result.
Further, the processor 1001 may call a secure charging program stored in the memory 1005, and further perform the following operations:
The charging pile system includes: the charging pile, the transformer connected with the charging pile and the vehicle connected with the charging pile, wherein the step of monitoring the state parameters of related equipment in the charging pile system in a charging state comprises the following steps:
and collecting the state parameters of the charging pile through the collecting equipment configured in the charging pile system, collecting the state parameters of the transformer, and collecting the state parameters of the vehicle, so that the state parameters of the charging pile, the state parameters of the transformer and the state parameters of the vehicle are used as the state parameters of relevant equipment in the monitoring charging pile system in a charging state.
Further, the processor 1001 may call a secure charging program stored in the memory 1005, and further perform the following operations:
the state parameters of the charging pile system comprise: and the first output power of the charging pile and the temperature of the charging pile, and the state parameters of the transformer comprise: a second output power of the transformer and a transformer temperature, the vehicle state parameters including: the step of generating the charging state characteristic quantity of the charging pile system according to the state parameter comprises the following steps of:
Taking the dispersion among the first output power, the second output power and the input power as a first charging state characteristic quantity of the charging pile system;
taking the difference value between the temperature of the charging pile and a preset charging pile temperature threshold value as a second charging state characteristic quantity of the charging pile system;
taking the difference value between the temperature of the transformer and a preset temperature threshold value of the transformer as a third charging state characteristic quantity of the charging pile system;
taking the difference value between the vehicle temperature and a preset vehicle temperature threshold value as a fourth charging state characteristic quantity of the charging pile system;
the charge state characteristic quantity comprises a first charge state characteristic quantity, a second charge state characteristic quantity, a third charge state characteristic quantity and a fourth charge state characteristic quantity.
Further, the processor 1001 may call a secure charging program stored in the memory 1005, and further perform the following operations:
the step of generating the safety evaluation result of the charging pile system based on the charging state characteristic quantity comprises the following steps:
generating an evaluation unit based on the first state-of-charge feature quantity, the second state-of-charge feature quantity, the third state-of-charge feature quantity, and the fourth state-of-charge feature quantity, wherein the evaluation unit includes any two of the state-of-charge feature quantities;
Inputting the evaluation unit into a corresponding preset classifier;
and evaluating the charging pile system through the classifier to generate an evaluation result, wherein the evaluation result is that the charging pile system is normally charged or the charging pile system is abnormally charged.
Further, the processor 1001 may call a secure charging program stored in the memory 1005, and further perform the following operations:
acquiring a safety evaluation result of each classifier;
counting the number of abnormal charging of the charging pile system in the safety evaluation result;
and outputting safety prompt information of different grades based on the number of abnormal charging of the charging pile system.
Further, the processor 1001 may call a secure charging program stored in the memory 1005, and further perform the following operations:
after the step of outputting the prompt information of the charging pile system according to the safety evaluation result, the method comprises the following steps:
comparing the state parameter with a preset dangerous threshold;
and when the state parameter is larger than the preset dangerous threshold, executing a preset safety protection action, and outputting the execution condition of the safety protection action.
Further, the processor 1001 may call a secure charging program stored in the memory 1005, and further perform the following operations:
After the step of performing a preset safety protection action when the state parameter is greater than the preset risk threshold, the method comprises the following steps:
recording state parameters of a preset time period of related equipment in the charging pile system in a charging state;
and marking the state parameter of the preset time period as an abnormal sample, and inputting the abnormal sample into training samples of each preset charging pile classifier.
Referring to fig. 2, a first embodiment of the safety charging method of the present invention includes:
step S10, monitoring state parameters of related equipment in a charging pile system in a charging state;
further, the charging pile system includes: the charging pile, the transformer connected with the charging pile and the vehicle connected with the charging pile, wherein the step of monitoring the state parameters of related equipment in the charging pile system in a charging state comprises the following steps: and collecting the state parameters of the charging pile through the collecting equipment configured in the charging pile system, collecting the state parameters of the transformer, and collecting the state parameters of the vehicle, so that the state parameters of the charging pile, the state parameters of the transformer and the state parameters of the vehicle are used as the state parameters of relevant equipment in the monitoring charging pile system in a charging state.
Specifically, in this embodiment, the implementation main body of the present invention may be a charging pile monitoring platform to which the above-described safe charging method is applied. The related devices in the charging pile system refer to devices involved in completing the charging function of the charging pile, such as the charging pile itself, the transformer connected to the charging pile, and the vehicle (electric automobile) connected to the charging pile. Correspondingly, the state parameters of the charging pile, the state parameters of the transformer and the state parameters of the vehicle are collected when the electric vehicle is connected into the charging pile for charging. The transformer state parameter is a parameter output by a low-voltage section of the transformer (i.e., a parameter input by a charging system), and the vehicle state parameter is typically a parameter of a battery or a motor of the electric vehicle. In addition, besides monitoring state parameters of related equipment in the charging pile system in a charging state, environmental parameters of the charging pile system can also be monitored. The environmental parameters include the ambient temperature of the charging stake system and the smoke content of the charging stake system environment, which may be collected by a smoke sensor disposed proximate the charging stake.
It can be understood that in this embodiment, not only the state parameter of the charging pile itself is considered, but also the state parameter of the device related to the charging pile is used as an evaluation factor of the charging pile system, and the consideration factor is more comprehensive, so that the evaluation result is more accurate.
Step S20, generating a charging state characteristic quantity of the charging pile system according to the state parameter;
specifically, the obtained state parameters are compared with a preset threshold value to generate a charge state characteristic quantity, or a change trend of the state parameters is more provided to generate the charge state characteristic quantity.
Further, the state parameters of the charging pile system include: and the first output power of the charging pile and the temperature of the charging pile, and the state parameters of the transformer comprise: a second output power of the transformer and a transformer temperature, the vehicle state parameters including: the step of generating the charging state characteristic quantity of the charging pile system according to the state parameter comprises the following steps of: taking the dispersion among the first output power, the second output power and the input power as a first charging state characteristic quantity of the charging pile system; taking the difference value between the temperature of the charging pile and a preset charging pile temperature threshold value as a second charging state characteristic quantity of the charging pile system; taking the difference value between the temperature of the transformer and a preset temperature threshold value of the transformer as a third charging state characteristic quantity of the charging pile system; taking the difference value between the vehicle temperature and a preset vehicle temperature threshold value as a fourth charging state characteristic quantity of the charging pile system; the charge state characteristic quantity comprises a first charge state characteristic quantity, a second charge state characteristic quantity, a third charge state characteristic quantity and a fourth charge state characteristic quantity.
Specifically, in the present example, the acquired state parameters of each relevant device are related to temperature and power, such as the first output power of the charging pile and the charging pile temperature, the second output power of the transformer and the transformer temperature, the input power of the vehicle and the vehicle temperature, and these state parameters are used to generate the state of charge feature quantity of the charging system. The first charging state is a dispersion between a first output power of the charging pile, a second output power of the transformer and an input power of the vehicle, the dispersion may be represented by a mathematical variance value, or a sum of absolute values of differences between any two of the three power quantities is used as the dispersion (e.g., |first output power-second output power|+|first output power-input power|+|second output power-input power|= dispersion), when the electric vehicle is charged by the charging pile, electric energy is firstly outputted from the low voltage side of the transformer to the charging pile through voltage reduction of the transformer from the high voltage side of the transformer, and the charging pile is then charged by the charging gun to the electric vehicle, wherein the second output power of the transformer refers to actual electric power outputted from the transformer to the charging pile, the first output power of the charging pile refers to the actual electric power output by the charging pile to the electric vehicle, the input power of the vehicle refers to the actual charging power of the battery of the electric vehicle, so the theory of the first output power, the second output power and the input power should be the same, and considering the loss or the conversion efficiency in the charging process, a certain difference exists between the first output power, the second output power and the input power, but the value of the difference is not excessively large under normal conditions, so the magnitude of the dispersion is taken as one of factors considering the charging safety of the charging system, in addition, before the charging starts in the actual charging process, the vehicle should send charging demand power to the charging pile, the charging pile charges the vehicle according to the demand power, and the battery configuration of different vehicles is different, so the charging demand power of different vehicles may also be different, if the actual input power of the vehicle is greater than the charging demand power, there may be a safety risk, and therefore, the number of times that the input power of the vehicle is greater than the charging demand power of the vehicle during charging may also be used as one of the feature values of the charging state. It should be understood that, due to the attribute of the hardware of the related device, the related device has a normal working temperature, such as a preset charging pile temperature threshold value, a preset transformer temperature threshold value and a preset vehicle temperature threshold value. Taking the difference value between the temperature of the charging pile and the preset temperature threshold value of the charging pile as a second charging state characteristic quantity, taking the difference value between the temperature of the transformer and the preset temperature threshold value of the transformer as a third charging state characteristic quantity, and taking the difference value between the temperature of the vehicle and the preset temperature threshold value of the vehicle as a fourth charging state characteristic quantity. And the second to fourth charge state feature amounts are each signed.
In addition, in addition to the above four kinds of state-of-charge feature values, the technician may also generate state-of-charge feature values according to other different related devices or other different kinds of state parameters, such as a charging pile temperature, a transformer temperature, and a vehicle temperature, where a rate of change of the three temperatures (i.e., a ratio of a difference between a temperature value at a start time of the preset time period and a temperature value at an end time of the preset time period and the preset time period in the preset time period, such as a rate of change= | (k 1-k 2)/t|, k1 being a temperature value at the start time, k2 being a temperature value at the end time, and t being a duration of the preset time period) as the additional state-of-charge feature value. Similarly, in addition to the rate of change of the device temperature, the rate of change of the charging voltage or the charging current (fluctuation condition) at the time of charging, and the rate of change of the environmental temperature in the environmental parameter, the rate of change of the smoke content in the environment may also correspond to the generated state of charge feature quantity.
Step S30, generating a safety evaluation result of the charging pile system based on the charging state characteristic quantity;
further, an evaluation unit is generated based on the first state-of-charge feature quantity, the second state-of-charge feature quantity, the third state-of-charge feature quantity, and the fourth state-of-charge feature quantity, wherein the evaluation unit includes any two of the state-of-charge feature quantities; inputting the evaluation unit into a corresponding preset classifier; and evaluating the charging pile system through the classifier to generate an evaluation result, wherein the evaluation result is that the charging pile system is normally charged or the charging pile system is abnormally charged.
Specifically, in the present embodiment, four kinds of charge state feature amounts are generated based on the state parameters of the charge pile system, and each charge state feature amount is a specific value. Since any two charge state feature amounts are taken as one evaluation unit, the evaluation units that can be obtained based on the four charge state feature amounts may be in the following combination: the first and second state of charge characteristic amounts, the first and third state of charge characteristic amounts, the first and fourth state of charge characteristic amounts, the second and third state of charge characteristic amounts, the second and fourth state of charge characteristic amounts, the third and fourth state of charge characteristic amounts, and the third and fourth state of charge characteristic amounts. Six units of evaluation can be obtained, and each unit of evaluation will correspond to one classifier. Taking a classifier corresponding to an evaluation unit of the first charge state feature quantity and the second charge state feature quantity as an example, the classifier is to be trained by a charge state sample, the charge state sample is divided into a normal charge sample and an abnormal charge sample, each sample contains the first to fourth charge state feature quantities, each training sample can be generated based on historical data of a charging pile system, for example, if a certain charging pile system generates a protection action due to an abnormality, the first to fourth charge state feature quantities are generated based on state parameters (or average number of state parameters in a preset time period) in a preset time period before the protection action occurs, and the generated first to fourth charge state feature quantities are used as an abnormal charge sample. The corresponding classifier corresponds to the first state of charge feature quantity and the second state of charge feature quantity, and the classifier is trained based on the first state of charge feature quantity and the second state of charge feature quantity in each sample. In this embodiment, the classifier may be a linear classifier, and the first charge state feature quantity and the second charge state feature quantity in each training sample (including a normal charge sample and an abnormal charge sample) are used as coordinate values of one two-dimensional coordinate, and the two-dimensional coordinate is mapped to the two-dimensional plane. The distribution of each sample on the two-dimensional plane can be obtained, and a classification line is generated based on each sample mapped on the two-dimensional plane, wherein the classification line is used for distinguishing normal charge samples from abnormal charge samples. The current linear classifier is mature, so the generation mode of the classification line is not described in detail here. The first state of charge feature quantity and the second state of charge feature quantity generated based on the current state parameters of the charging system are classified based on the classifier. And taking the classified result as a safety evaluation result, wherein the evaluation result can be that the charging pile system is normally charged or the charging pile system is abnormally charged. It will be appreciated that the above-mentioned process is an evaluation process of one evaluation unit under its corresponding classifier, and in this embodiment, there may be multiple classifiers for different evaluation units, so there may be multiple security evaluation results (e.g., six classifiers obtain six security evaluation results).
And step S40, outputting prompt information of the charging pile system according to the safety evaluation result.
Further, obtaining a safety evaluation result of each classifier; counting the number of abnormal charging of the charging pile system in the safety evaluation result; and outputting safety prompt information of different grades based on the number of abnormal charging of the charging pile system.
Specifically, in this embodiment, a plurality of classifiers will obtain a plurality of safety evaluation results, and the number of charging anomalies evaluated as the charging pile system in the safety evaluation results is counted. For example, in the case of the above six classifiers, the counted number may be 0 to 6, the security prompt levels corresponding to the different numbers are different, for example, 0 corresponds to normal, 1 corresponds to level 1 abnormality, 2 corresponds to level 2 abnormality, and so on to level 6 abnormality. Thereby prompting the user who charges the charging pile system or prompting the operation and maintenance personnel.
Further, after the step of outputting the prompt information of the charging pile system according to the safety evaluation result, the method includes: comparing the state parameter with a preset dangerous threshold; and when the state parameter is larger than the preset dangerous threshold, executing a preset safety protection action, and outputting the execution condition of the safety protection action.
Specifically, the state parameters are used for being input into a preset charging pile classifier for evaluation, and are compared with preset dangerous thresholds, and similarly, the state parameters can include voltage, current, power, temperature and the like of each related device, each state parameter is compared with the corresponding preset dangerous threshold, when any one state parameter of any one device is greater than the preset dangerous threshold, preset safety protection action is executed, and dangerous prompt information of an electric pile system and execution conditions (such as whether the safety protection action is executed) of the safety protection action are output. It should be understood that different preset hazard thresholds may be set, such as a first hazard threshold and a second hazard threshold (the second hazard threshold is greater than the first hazard threshold), corresponding to stopping charging when the first hazard threshold is exceeded, and starting an automatic fire protection facility and shutting down charging and discharging of the charging pile when the second hazard threshold is exceeded, so as to protect the asset safety of related equipment such as the charging pile. In addition, the preset dangerous threshold value is also respectively larger than the preset charging pile temperature threshold value, the preset transformer temperature threshold value and the preset vehicle temperature threshold value.
Further, after the step of executing the preset safety protection action when the state parameter is greater than the preset dangerous threshold, the method includes: recording state parameters of a preset time period of related equipment in the charging pile system in a charging state; and marking the state parameter of the preset time period as an abnormal sample, and inputting the abnormal sample into training samples of each preset charging pile classifier.
Specifically, the historical charging parameters of any charging pile system triggering the protection action in a preset time period (such as a time period in a charging process) are used as data of an abnormal sample, and are input into a training sample of a preset charging pile classifier, so that the accuracy of the preset charging pile classifier is ensured.
In the embodiment, the method and the device for generating the safety evaluation result of the charging pile system generate the charging state characteristic quantity of the charging pile system by acquiring the state parameters of each device of the charging pile system in the charging state, generate the safety evaluation result of the charging pile system based on the charging state characteristic quantity and a preset charging pile classifier, and output prompt information of the charging pile system according to the safety evaluation result. Compared with the prior art, the monitoring platform applying the safe charging method can compare and evaluate the state parameters of the whole charging pile system before reaching the threshold value with a large number of historical parameters through the preset charging pile classifier, so that the safety risk existing when the charging pile continues to charge is judged, prompt information is sent, the warning prompt problem is avoided when the fault is enlarged or damage is caused, and the safety of the charging system in the charging process is enhanced.
In addition, to achieve the above object, the present invention also provides a safety charging device including:
the monitoring module is used for monitoring state parameters of related equipment in the charging pile system in a charging state;
the generation module is used for generating a charging state characteristic quantity of the charging pile system according to the state parameter;
the evaluation module is used for generating a safety evaluation result of the charging pile system based on the charging state characteristic quantity;
and the output module is used for outputting prompt information of the charging pile system according to the safety evaluation result.
Optionally, the charging pile system includes: fill electric pile the transformer that fills electric pile access and access fill electric pile's vehicle, the monitoring module is still used for:
and collecting the state parameters of the charging pile through the collecting equipment configured in the charging pile system, collecting the state parameters of the transformer, and collecting the state parameters of the vehicle, so that the state parameters of the charging pile, the state parameters of the transformer and the state parameters of the vehicle are used as the state parameters of relevant equipment in the monitoring charging pile system in a charging state.
Optionally, the state parameters of the charging pile system include: and the first output power of the charging pile and the temperature of the charging pile, and the state parameters of the transformer comprise: a second output power of the transformer and a transformer temperature, the vehicle state parameters including: the generation module is further configured to:
Taking the dispersion among the first output power, the second output power and the input power as a first charging state characteristic quantity of the charging pile system;
taking the difference value between the temperature of the charging pile and a preset charging pile temperature threshold value as a second charging state characteristic quantity of the charging pile system;
taking the difference value between the temperature of the transformer and a preset temperature threshold value of the transformer as a third charging state characteristic quantity of the charging pile system;
taking the difference value between the vehicle temperature and a preset vehicle temperature threshold value as a fourth charging state characteristic quantity of the charging pile system;
the charge state characteristic quantity comprises a first charge state characteristic quantity, a second charge state characteristic quantity, a third charge state characteristic quantity and a fourth charge state characteristic quantity.
Optionally, the evaluation module is further configured to:
generating an evaluation unit based on the first state-of-charge feature quantity, the second state-of-charge feature quantity, the third state-of-charge feature quantity, and the fourth state-of-charge feature quantity, wherein the evaluation unit includes any two of the state-of-charge feature quantities;
inputting the evaluation unit into a corresponding preset classifier;
And evaluating the charging pile system through the classifier to generate an evaluation result, wherein the evaluation result is that the charging pile system is normally charged or the charging pile system is abnormally charged.
Optionally, the output module is further configured to:
acquiring a safety evaluation result of each classifier;
counting the number of abnormal charging of the charging pile system in the safety evaluation result;
and outputting safety prompt information of different grades based on the number of abnormal charging of the charging pile system.
Optionally, the output module is further configured to:
comparing the state parameter with a preset dangerous threshold;
and when the state parameter is larger than the preset dangerous threshold, executing a preset safety protection action, and outputting the execution condition of the safety protection action.
Optionally, the output module is further configured to:
recording state parameters of a preset time period of related equipment in the charging pile system in a charging state;
and marking the state parameter of the preset time period as an abnormal sample, and inputting the abnormal sample into training samples of each preset charging pile classifier.
The safety charging device provided by the invention adopts the safety charging method in the embodiment, and solves the technical problems that the safety diagnosis of the charging pile equipment is usually based on the charging pile only to set a protection value, and the safety diagnosis is judged according to the protection value to have certain hysteresis, so that the safety of the charging pile is not facilitated. Compared with the prior art, the safety charging device provided by the embodiment of the invention has the same beneficial effects as the safety charging method provided by the embodiment, and other technical features in the safety charging device are the same as the features disclosed by the method of the embodiment, and are not repeated herein.
In addition, to achieve the above object, the present invention also provides a safety charging device including: the system comprises a memory, a processor and a safety charging program which is stored in the memory and can run on the processor, wherein the safety charging program realizes the steps of the safety charging method when being executed by the processor.
The specific implementation manner of the safety charging device of the present invention is basically the same as that of each embodiment of the safety charging method described above, and will not be repeated here.
In addition, in order to achieve the above object, the present invention also provides a computer-readable storage medium having stored thereon a secure charging program which, when executed by a processor, implements the steps of the secure charging method as described above.
The specific implementation manner of the medium of the present invention is basically the same as that of each embodiment of the above-mentioned safe charging method, and will not be repeated here.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above, including several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, a charging pile, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (8)
1. A safe charging method, characterized in that the safe charging method comprises the steps of:
monitoring state parameters and environment parameters of related equipment in a charging pile system in a charging state;
generating a charging state characteristic quantity of the charging pile system according to the state parameter and the environment parameter;
generating a safety evaluation result of the charging pile system based on the charging state characteristic quantity;
outputting prompt information of the charging pile system according to the safety evaluation result;
wherein, fill electric pile system includes: the charging pile, the transformer connected with the charging pile and the vehicle connected with the charging pile, wherein the step of monitoring the state parameters and the environment parameters of related equipment in a charging pile system in a charging state comprises the following steps:
collecting a charging pile state parameter of the charging pile through collecting equipment configured on the charging pile system, collecting a transformer state parameter of the transformer, and collecting a vehicle state parameter of the vehicle, wherein the charging pile state parameter, the transformer state parameter and the vehicle state parameter are used as state parameters of relevant equipment in the monitoring charging pile system in a charging state, and collecting environment parameters of the charging pile system, and the environment parameters comprise the environment temperature of the charging pile system and the smoke content of the environment of the charging pile system;
Wherein the step of generating the safety evaluation result of the charging pile system based on the charging state characteristic quantity includes:
generating an evaluation unit based on the charge state feature quantity, wherein the charge state feature quantity is four, and the evaluation unit comprises any two charge state feature quantities;
inputting the evaluation unit into a corresponding preset classifier;
and evaluating the charging pile system through the classifier to generate an evaluation result, wherein the evaluation result is that the charging pile system is normally charged or the charging pile system is abnormally charged.
2. The safe charging method of claim 1, wherein the state parameters of the charging pile system include: and the first output power of the charging pile and the temperature of the charging pile, and the state parameters of the transformer comprise: a second output power of the transformer and a transformer temperature, the vehicle state parameters including: the step of generating the charging state characteristic quantity of the charging pile system according to the state parameter comprises the following steps of:
taking the dispersion among the first output power, the second output power and the input power as a first charging state characteristic quantity of the charging pile system;
Taking the difference value between the temperature of the charging pile and a preset charging pile temperature threshold value as a second charging state characteristic quantity of the charging pile system;
taking the difference value between the temperature of the transformer and a preset temperature threshold value of the transformer as a third charging state characteristic quantity of the charging pile system;
taking the difference value between the vehicle temperature and a preset vehicle temperature threshold value as a fourth charging state characteristic quantity of the charging pile system;
the charge state characteristic quantity comprises a first charge state characteristic quantity, a second charge state characteristic quantity, a third charge state characteristic quantity and a fourth charge state characteristic quantity.
3. The method of claim 1, wherein the step of outputting the prompt message of the charging pile system according to the safety evaluation result comprises:
acquiring a safety evaluation result of each classifier;
counting the number of abnormal charging of the charging pile system in the safety evaluation result;
and outputting safety prompt information of different grades based on the number of abnormal charging of the charging pile system.
4. The safety charging method according to claim 3, wherein after the step of outputting the prompt message of the charging pile system according to the safety evaluation result, comprising:
Comparing the state parameter with a preset dangerous threshold;
and when the state parameter is larger than the preset dangerous threshold, executing a preset safety protection action, and outputting the execution condition of the safety protection action.
5. The method of claim 4, wherein after the step of performing a predetermined safety protection action when the state parameter is greater than the predetermined risk threshold, comprising:
recording state parameters of a preset time period of related equipment in the charging pile system in a charging state;
and marking the state parameter of the preset time period as an abnormal sample, and inputting the abnormal sample into training samples of each preset charging pile classifier.
6. A safety charging device, characterized in that the safety charging device comprises:
the monitoring module is used for monitoring state parameters and environment parameters of related equipment in the charging pile system in a charging state;
the generation module is used for generating a charging state characteristic quantity of the charging pile system according to the state parameter and the environment parameter;
the evaluation module is used for generating a safety evaluation result of the charging pile system based on the charging state characteristic quantity;
The output module is used for outputting prompt information of the charging pile system according to the safety evaluation result;
wherein, fill electric pile system includes: fill electric pile the transformer that fills electric pile access and access fill electric pile's vehicle, monitoring module specifically is used for:
collecting a charging pile state parameter of the charging pile through collecting equipment configured on the charging pile system, collecting a transformer state parameter of the transformer, and collecting a vehicle state parameter of the vehicle, wherein the charging pile state parameter, the transformer state parameter and the vehicle state parameter are used as state parameters of relevant equipment in the monitoring charging pile system in a charging state, and collecting environment parameters of the charging pile system, and the environment parameters comprise the environment temperature of the charging pile system and the smoke content of the environment of the charging pile system;
wherein, the evaluation module is specifically configured to:
generating an evaluation unit based on the charge state feature quantity, wherein the charge state feature quantity is four, and the evaluation unit comprises any two charge state feature quantities;
inputting the evaluation unit into a corresponding preset classifier;
And evaluating the charging pile system through the classifier to generate an evaluation result, wherein the evaluation result is that the charging pile system is normally charged or the charging pile system is abnormally charged.
7. A safety charging device, characterized in that the safety charging device comprises: a memory, a processor and a secure charging program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the secure charging method according to any one of claims 1 to 5.
8. A computer readable storage medium, characterized in that the readable storage medium has stored thereon a secure charging program, which when executed by a processor implements the steps of the secure charging method according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211174839.8A CN115503535B (en) | 2022-09-26 | 2022-09-26 | Secure charging method, apparatus, device and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211174839.8A CN115503535B (en) | 2022-09-26 | 2022-09-26 | Secure charging method, apparatus, device and computer readable storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115503535A CN115503535A (en) | 2022-12-23 |
| CN115503535B true CN115503535B (en) | 2023-09-29 |
Family
ID=84506129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211174839.8A Active CN115503535B (en) | 2022-09-26 | 2022-09-26 | Secure charging method, apparatus, device and computer readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115503535B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116533806A (en) * | 2023-05-05 | 2023-08-04 | 深圳市拓湃新能源科技有限公司 | Battery charging method, device, system and medium based on charging pile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015217213A1 (en) * | 2015-09-09 | 2017-03-09 | Siemens Aktiengesellschaft | Method for controlling charging processes |
| CN110682825A (en) * | 2019-10-14 | 2020-01-14 | 北京嘀嘀无限科技发展有限公司 | Safe charging method, storage medium, electronic device and system |
| CN111680924A (en) * | 2020-06-10 | 2020-09-18 | 国网浙江电动汽车服务有限公司 | Method, device, equipment and medium for evaluating operation state of charging pile |
| CN112622676A (en) * | 2020-11-09 | 2021-04-09 | 特瓦特能源科技有限公司 | Monitoring method and system for power battery safe charging |
| CN113306412A (en) * | 2021-06-17 | 2021-08-27 | 江苏云快充新能源科技有限公司 | Vehicle charging safety protection method and device, charging platform and storage medium |
-
2022
- 2022-09-26 CN CN202211174839.8A patent/CN115503535B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015217213A1 (en) * | 2015-09-09 | 2017-03-09 | Siemens Aktiengesellschaft | Method for controlling charging processes |
| CN110682825A (en) * | 2019-10-14 | 2020-01-14 | 北京嘀嘀无限科技发展有限公司 | Safe charging method, storage medium, electronic device and system |
| CN111680924A (en) * | 2020-06-10 | 2020-09-18 | 国网浙江电动汽车服务有限公司 | Method, device, equipment and medium for evaluating operation state of charging pile |
| CN112622676A (en) * | 2020-11-09 | 2021-04-09 | 特瓦特能源科技有限公司 | Monitoring method and system for power battery safe charging |
| CN113306412A (en) * | 2021-06-17 | 2021-08-27 | 江苏云快充新能源科技有限公司 | Vehicle charging safety protection method and device, charging platform and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115503535A (en) | 2022-12-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109948664B (en) | Charging mode identification method and device, terminal equipment and storage medium | |
| US20110267067A1 (en) | Electronic battery tester | |
| CN113175947A (en) | Charging station abnormity early warning method, intelligent operation and maintenance gateway and early warning system | |
| CN115503535B (en) | Secure charging method, apparatus, device and computer readable storage medium | |
| CN109591645B (en) | Vehicle pile charging management method and system and terminal equipment | |
| CN110441594A (en) | Electric vehicle charging behavior monitoring method, device and computer readable storage medium | |
| CN114821946A (en) | Fire early warning method, monitoring terminal and system for alternating current power supply of transformer substation | |
| CN116215295B (en) | Charging pile monitoring and early warning method, device, equipment and storage medium | |
| CN113682184A (en) | Charging detection method, device and system for electric automobile | |
| CN105633903A (en) | Electric device, electric system and terminal device having fault monitoring function | |
| CN112054259B (en) | Acquisition harness fault detection method and device, electronic equipment and storage medium | |
| CN114199304B (en) | Abnormity detection method and device for communication machine room of photovoltaic power station and computer equipment | |
| CN111186333B (en) | Electric vehicle charging identification method and device, terminal equipment and storage medium | |
| CN113787914B (en) | Monitoring method and device of power battery, server and storage medium | |
| CN116923188B (en) | Charging protection system of new energy vehicle | |
| CN113595174A (en) | Battery management method, device, equipment and server | |
| CN114694354A (en) | Battery replacement station safety warning method and system, cloud server and storage medium | |
| KR101777768B1 (en) | Method for detecting battery status of industrial vehicle by using smart phone | |
| CN115799690B (en) | Operation method and system of energy storage equipment | |
| CN115940424A (en) | Centralized monitoring and remote capacity checking method for substation direct-current power supply system on centralized control station side | |
| CN115496372B (en) | Charging system safety risk prediction method, device, equipment and readable storage medium | |
| CN212462816U (en) | Battery charging and discharging management device and electric vehicle | |
| CN115561563B (en) | Satellite power supply testing method, device, equipment and medium | |
| CN114954101A (en) | Charging energy consumption statistical method and device and computer readable storage medium | |
| CN118487352B (en) | Wireless charging method and device for intelligent equipment, vehicle and medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |