CN117962620A - New energy vehicle power battery charging safety monitoring and early warning method and system - Google Patents
New energy vehicle power battery charging safety monitoring and early warning method and system Download PDFInfo
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Abstract
The invention belongs to the technical field of power battery charging monitoring, and particularly relates to a new energy vehicle power battery charging safety monitoring and early warning method and system, wherein the method comprises the following steps: the first acquisition module sends an acquisition notification message to the second acquisition module, acquires first characteristic data of different charging components of the charging module, and sends the first characteristic data of the different charging components to the analysis module in a secret sending mode; the second acquisition module acquires second characteristic data of different charging components of the charging module, and sends the second characteristic data of different charging components to the analysis module in a secret sending mode; the analysis module receives the first characteristic data and the second characteristic data of different charging components sent by the first acquisition module and the second acquisition module, and analyzes the charging states of the different charging components. The invention can monitor the charging safety of the power battery of the new energy vehicle.
Description
Technical Field
The invention belongs to the technical field of power battery charging monitoring, and particularly relates to a new energy vehicle power battery charging safety monitoring and early warning method and system.
Background
The new energy vehicle power battery can provide a power source for the new energy vehicle, however, the new energy vehicle power battery charging accident happens sometimes, so that the charging process of the new energy vehicle power battery needs to be monitored and early-warned, and the charging abnormality of the new energy vehicle power battery can be timely found, so that the loss can be reduced.
The invention application of China with the publication number of CN117656911A provides a method and a system for monitoring hidden danger of a charging facility, wherein the system comprises a data acquisition module for detecting performance values of various indexes of the charging facility; the communication transmission module is used for sending out the data information of the acquired performance values of all indexes of the charging facility; the monitoring platform takes a numerical range of each performance numerical value of the charging facility corresponding to the national standard as comparison data information and is used for receiving data information of each index performance value of the charging facility acquired in real time; the monitoring platform further comprises an analysis unit, wherein the analysis unit is used for comparing the performance values of various indexes of the charging facility acquired in real time with the comparison data information, judging the running state of the charging facility and sending out a judging result; the monitoring terminal is used for receiving the judging result, but the problem that data is tampered can occur in the process of transmitting various index performance values. The invention application of China with the publication number of CN114056186A discloses a charging monitoring device, a charging system and a charging method of a power battery, wherein the charging monitoring device utilizes a sensing module to collect a first wavelength variation caused by temperature and a second wavelength variation caused by deformation in the charging process of a battery module, a third wavelength variation caused by environmental humidity variation of the battery module and a fourth wavelength variation caused by leakage gas; demodulating the first wavelength variation, the second wavelength variation, the third wavelength variation and the fourth wavelength variation by using a demodulation module to obtain the respective corresponding variation of temperature, strain and humidity and gas leakage information in the charging process; and finally, judging the charging safety state of the power battery by utilizing the monitoring module according to the respective corresponding change amounts of temperature, strain and humidity and the gas leakage information, wherein the problem that a plurality of rechargeable battery parameters should be acquired at the same time is not considered. Therefore, the invention provides a new energy vehicle power battery charging safety monitoring and early warning method and system.
Disclosure of Invention
The first characteristic data is acquired through the first acquisition module, the first acquisition module sends the acquisition notification message to the second acquisition module, so that the second acquisition module acquires the second characteristic data at the same time, and in addition, the first acquisition module and the second acquisition module send the first characteristic data and the second characteristic data to the analysis module for analysis processing in a secret sending mode. The invention aims to solve the problem that the first characteristic data and the second characteristic data can be tampered in the transmission process and the problem that the first characteristic data and the second characteristic data acquired at the same time should be analyzed and processed.
In order to achieve the above purpose, the invention provides a new energy vehicle power battery charging safety monitoring and early warning method, which mainly comprises the following steps:
S1, setting a charging module, a first acquisition module, a second acquisition module, a network module and an analysis module, wherein the charging module comprises a plurality of charging components, the first acquisition module sends an acquisition notification message to the second acquisition module every time a preset time period passes, and the first acquisition module acquires first characteristic data of different charging components of the charging module at preset different acquisition times and sends the acquired first characteristic data of different charging components to the analysis module in a secret sending mode;
S2, the second acquisition module acquires second characteristic data of different charging components of the charging module, and sends the acquired second characteristic data of the different charging components to the analysis module in a secret sending mode;
s3, the analysis module receives the first characteristic data of the different charging assemblies sent by the first acquisition module and the second characteristic data of the different charging assemblies sent by the second acquisition module, and analyzes the charging states of the different charging assemblies based on the received first characteristic data and the received second characteristic data of the different charging assemblies;
the secret sending mode comprises the following steps of:
s11, calculating a representative value of the transmission data by the sender, carrying out secret processing on the representative value by using a first password of the sender to obtain a secret representative value, carrying out secret processing on the transmission data by the sender through a second password of the sender to obtain secret transmission data, and carrying out secret processing on the second password of the sender according to the first password of the receiver to obtain a secret second password by the sender;
S12, the sender forms transmission data by the secret representative value, secret transmission data and secret second password, and the sender transmits the transmission data to the receiver through the network module.
As a preferred technical solution of the present invention, the secret transmission method further includes the following steps:
S13, the receiving party receives the transmission data, meanwhile, the receiving party uses a second password of the receiving party to decrypt the secret second password contained in the transmission data to obtain a second password of the sending party, the receiving party decrypts secret sending data contained in the transmission data through the second password of the sending party to obtain sending data, and the receiving party also decrypts the secret representative value contained in the transmission data according to a third password of the sending party to obtain a representative value;
And S14, the receiver calculates the representative value of the decrypted transmission data in the same way as the sender calculates the representative value, and when the calculated representative value is the same as the decrypted representative value, the receiver judges that the decrypted transmission data is reliable, and meanwhile stores the obtained transmission data, and when the calculated representative value is different from the decrypted representative value, the receiver judges that the decrypted transmission data is unreliable.
As a preferable embodiment of the present invention, the sender stores the first password of the receiver in advance.
As a preferable embodiment of the present invention, the receiving side stores the third password of the transmitting side in advance.
As a preferred embodiment of the present invention, the second collecting module collects the second characteristic data of the charging modules, which are different from each other, and includes the following steps:
s21, starting the second acquisition module, and recording the current time as the first time by the second acquisition module;
S22, judging whether to stop collecting the second characteristic data of different charging assemblies, if yes, ending the collection of the second characteristic data of different charging assemblies, and if no, continuing to execute S23;
S23, judging whether the acquisition notification message from the first acquisition module is received, if yes, continuing to execute S24, if no, calculating the time difference between the first time and the current time by the second acquisition module, jumping to S22 if the time difference is smaller than a preset time difference threshold, recording the current time as the first time if the time difference is larger than or equal to the preset time difference threshold, and jumping to S22 if the second characteristic data of different charging assemblies are set to be null by the second acquisition module;
s24, recording the current time as the first time, and collecting the second characteristic data of different charging assemblies by the second collecting module.
As a preferred technical solution of the present invention, the second collecting module collects second characteristic data of different charging components of the charging module, and further includes the following steps:
s25, judging whether to stop collecting the second characteristic data of different charging assemblies, if yes, ending the collection of the second characteristic data of different charging assemblies, and if no, continuing to execute S26;
S26, judging whether the acquisition notification message from the first acquisition module is received, if yes, continuing to execute S27, if no, calculating the time difference between the first time and the current time by the second acquisition module, jumping to S25 if the time difference is smaller than a preset time difference threshold, recording the current time as the first time if the time difference is larger than or equal to the preset time difference threshold, and jumping to S22 if the second characteristic data of different charging assemblies are set to be null by the second acquisition module;
s27, the second acquisition module stores the time difference between the first time and the current time as a standard time difference, and simultaneously the second acquisition module records that the current time is a second time, and the second acquisition module acquires the second characteristic data of different charging assemblies.
As a preferred technical solution of the present invention, the second collecting module collects second characteristic data of different charging components of the charging module, and further includes the following steps:
s28, judging whether to stop collecting the second characteristic data of different charging assemblies, if yes, ending the collection of the second characteristic data of different charging assemblies, and if no, continuing to execute S29;
s29, judging whether the acquisition notification message from the first acquisition module is received, if yes, continuing to execute S30, if no, calculating the time difference between the second time and the current time by the second acquisition module, jumping to S28 if the time difference is smaller than the standard time difference, and recording the current time as the second time by the second acquisition module if the time difference is larger than or equal to the standard time difference, and acquiring the second characteristic data of different charging assemblies by the second acquisition module, and jumping to S28;
s30, the second acquisition module records that the current time is a second time, and the second acquisition module acquires different second characteristic data of the charging assembly and jumps to S28.
As a preferable technical scheme of the invention, when the analysis module obtains that the charging state of any one of the charging assemblies is abnormal through analysis, the analysis module sends reminding information to a user of the vehicle.
The invention also provides a new energy vehicle power battery charging safety monitoring and early warning system, which mainly comprises the following modules:
The charging module consists of a plurality of charging components and is used for providing a power source for the vehicle;
the first acquisition module is used for sending an acquisition notification message to the second acquisition module every time a preset time period passes, acquiring first characteristic data of different charging components of the charging module at different preset acquisition times, and sending the acquired first characteristic data of the different charging components to the analysis module in a secret sending mode;
The second acquisition module is used for acquiring second characteristic data of different charging components of the charging module and sending the acquired second characteristic data of different charging components to the analysis module in a secret sending mode;
The network module is used for transmitting data between the first acquisition module and the analysis module and between the second acquisition module and the analysis module;
the analysis module is used for receiving the first characteristic data of different charging components sent by the first acquisition module and the second characteristic data of different charging components sent by the second acquisition module, and the analysis module analyzes the charging states of different charging components based on the received first characteristic data and the second characteristic data of different charging components.
Compared with the prior art, the invention has the following beneficial effects:
In the invention, firstly, a first acquisition module transmits an acquisition notification message to a second acquisition module every time a preset time period passes, and in different preset acquisition time, first characteristic data of different charging components of the charging module are acquired, the first characteristic data of the different charging components are transmitted to an analysis module in a secret transmission mode, secondly, the second acquisition module acquires second characteristic data of the different charging components of the charging module, the second characteristic data of the different charging components are also transmitted to the analysis module in a secret transmission mode, and finally, the analysis module receives the first characteristic data of the different charging components transmitted by the first acquisition module and the second characteristic data of the different charging components transmitted by the second acquisition module, and analyzes the charging states of the different charging components. According to the invention, the reliability of the first characteristic data and the second characteristic data can be ensured in the process that the first acquisition module and the second acquisition module send the first characteristic data and the second characteristic data to the analysis module, so that the accuracy of an analysis result is further ensured, and the second characteristic data can be acquired at the same time as the first characteristic data acquisition time even if the second acquisition module cannot receive the acquisition notification message sent by the first acquisition module.
Drawings
FIG. 1 is a flow chart of steps of a method for monitoring and early warning charging safety of a power battery of a new energy vehicle;
fig. 2 is a component structure diagram of the new energy vehicle power battery charging safety monitoring and early warning system.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. 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.
It will be understood that the terms "first," "second," and the like, as used herein, may be used to describe various elements, but these elements are not limited by these terms unless otherwise specified. These terms are only used to distinguish one element from another element. For example, a first xx script may be referred to as a second xx script, and similarly, a second xx script may be referred to as a first xx script, without departing from the scope of this disclosure.
In the prior art, a system for monitoring and early warning the charging process of a power battery of a new energy vehicle generally needs to collect different characteristic data, including current data, voltage data and the like, of a charging module in the charging process, and because the storage performance and the calculation performance of the collecting module are limited, the different characteristic data also need to be transmitted to an analysis module through a network module for analysis processing, however, the characteristic data may be tampered in the transmission process, and in addition, the analysis processing should be performed on the different characteristic data collected at the same time, so that an accurate analysis result can be obtained.
In order to solve the technical problems, the invention provides a new energy vehicle power battery charging safety monitoring and early warning method shown in fig. 1, which is mainly realized by executing the following steps:
S1, setting a charging module, a first acquisition module, a second acquisition module, a network module and an analysis module, wherein the charging module comprises a plurality of charging components, the first acquisition module sends an acquisition notification message to the second acquisition module every time a preset time period passes, and the first acquisition module acquires first characteristic data of different charging components of the charging module at preset different acquisition times and sends the acquired first characteristic data of different charging components to the analysis module in a secret sending mode;
S2, the second acquisition module acquires second characteristic data of different charging components of the charging module, and the acquired second characteristic data of different charging components are also sent to the analysis module in a secret sending mode;
S3, the analysis module receives the first characteristic data of different charging components sent by the first acquisition module and the second characteristic data of different charging components sent by the second acquisition module, and the analysis module analyzes the charging states of different charging components based on the received first characteristic data and second characteristic data of different charging components.
Specifically, first, the first collecting module and the second collecting module are set to collect the first characteristic data and the second characteristic data of different charging components of the charging module respectively, the charging module may be a battery pack, the charging component may be a battery, and the first collecting module sends the collecting notification message to the second collecting module every time a preset time period passes, for example, 10 minutes, 20 minutes and … … minutes after charging starts, the first collecting module also sends the collecting notification message at preset different collecting times, collects the first characteristic data of different charging components of the charging module, for convenience of understanding, for example, when the first collecting module sends the collecting notification message for 2 minutes, the second collecting module can receive the collecting notification message and collect the second characteristic data at the same time, then, for being capable of collecting the first characteristic data and the second characteristic data at the same time, the first collecting module should wait for 2 minutes after sending the collecting notification message, that is, for example, 12 minutes, 22 minutes, … … minutes after charging starts, after charging, the first collecting module sends the first characteristic data, and further the first collecting data is sent by the first collecting module in a secret manner of describing that the first collecting module sends the secret data. Secondly, the second collecting module collects second characteristic data of different charging components of the charging module, the collected second characteristic data of different charging components is also sent to the analyzing module in a secret sending mode, and a process of collecting the second characteristic data by the second collecting module is described below. Finally, the analysis module receives the first characteristic data of different charging components sent by the first acquisition module and the second characteristic data of different charging components sent by the second acquisition module, analyzes the charging states of different charging components based on the received first characteristic data and the received second characteristic data of different charging components, analyzes the heat generated by the charging components according to current data and voltage data for a period of time, and judges that the charging states are abnormal when the generated heat is excessive.
Further, the secret transmission mode comprises the following steps:
S11, calculating a representative value of the transmission data by the sender, carrying out secret processing on the representative value by using a first password of the sender to obtain a secret representative value, carrying out secret processing on the transmission data by the sender through a second password of the sender to obtain secret transmission data, and carrying out secret processing on the second password of the sender according to the first password of the receiver to obtain a secret second password by the sender;
s12, the sender forms the secret representative value, the secret sending data and the secret second password into transmission data, and the sender transmits the transmission data to the receiver through the network module.
Further, the sender stores the first password of the receiver in advance.
Further, the receiving side stores a third password of the transmitting side in advance.
Specifically, the sender generates a first password, a second password, and a third password in advance, where the sender refers to a first acquisition module or a second acquisition module, the first password of the sender and the third password of the sender are a set of passwords, the first password of the sender may be a private key, the third password of the sender may be a corresponding public key, the data obtained by performing a secret process through the first password of the sender may be decrypted by using the third password of the sender, the second password of the sender may be updated once every time a predetermined period of time, the data obtained by performing a secret process through the second password of the sender may also be decrypted by using the second password of the sender, in addition, the receiver generates a first password in advance, and the second password, where the receiver refers to an analysis module, the first password of the receiver may be a public key, the second password of the receiver may be a corresponding private key, the data obtained by performing a secret process through the first password of the sender may be decrypted by using the second password of the sender, the second password of the sender may be a value representing the sender, the data may be obtained by calculating a value representing the sender's own secret value, and the value may be obtained by calculating the value representing the sender's secret value, and sending the data may be obtained by calculating the value by using the second password, and the sender performs secret processing on the second password according to the first password of the receiver to obtain a secret second password, finally the sender forms transmission data by the secret representative value, the secret sending data and the secret second password, and the transmission data is transmitted to the receiver through the network module.
Further, the secret transmission method further comprises the following steps:
S13, the receiver receives the transmission data, meanwhile, the receiver uses the second password of the receiver to decrypt the secret second password contained in the transmission data to obtain the second password of the sender, the receiver decrypts the secret transmission data contained in the transmission data through the second password of the sender to obtain the transmission data, and the receiver decrypts the secret representative value contained in the transmission data according to the third password of the sender to obtain the representative value;
And S14, the receiver calculates the representative value of the decrypted transmission data in the same way as the sender calculates the representative value, and when the calculated representative value is the same as the decrypted representative value, the receiver judges that the decrypted transmission data is reliable, and meanwhile stores the obtained transmission data, and when the calculated representative value is different from the decrypted representative value, the receiver judges that the decrypted transmission data is unreliable.
Specifically, after receiving the transmission data, the receiving side firstly decrypts the secret second password included in the transmission data by using the second password of the receiving side to obtain the second password of the transmitting side, secondly decrypts the secret transmission data included in the transmission data by the second password of the transmitting side to obtain transmission data, namely, decrypted transmission data, and again decrypts the secret representative value included in the transmission data according to the third password of the transmitting side to obtain the representative value, namely, decrypted representative value, finally, calculates the representative value of decrypted transmission data in the same way as the representative value is calculated by the transmitting side, compares the representative value with the decrypted representative value, judges that the identity of the transmitting side is reliable, namely, decrypted transmission data is reliable, can perform subsequent analysis processing on the transmission data, judges that the identity of the transmitting side is suspicious, namely, decrypted transmission data is unreliable, and discards the decrypted transmission data if the two are different. By means of secret transmission, reliability of the first characteristic data and the second characteristic data can be ensured in the process that the first acquisition module and the second acquisition module transmit the first characteristic data and the second characteristic data to the analysis module.
Further, the above-mentioned secret transmission method requires a large amount of data to be transmitted, and when the communication between the sender and the receiver is busy, the above-mentioned secret transmission method further increases the processing load of the sender and the receiver, at this time, the sender may use its own second secret to process the transmission data to obtain secret transmission data, and the sender may further perform secret processing on its own second secret through the first secret of the receiver to obtain a secret second secret, and then transmit the transmission data composed of the secret transmission data and the secret second secret to the receiver through the network module. After receiving the transmission data, the receiver firstly uses the second password to decrypt the secret second password in the transmission data to obtain the second password of the sender, and then uses the second password of the sender to decrypt the secret transmission data in the transmission data to obtain the transmission data.
Further, the second collecting module collects second characteristic data of different charging components of the charging module, including the following steps:
s21, starting a second acquisition module, and recording the current time as the first time by the second acquisition module;
S22, judging whether to stop collecting the second characteristic data of different charging assemblies, if yes, ending the collection of the second characteristic data of different charging assemblies, and if no, continuing to execute S23;
s23, judging whether an acquisition notification message from a first acquisition module is received, if yes, continuing to execute S24, if no, calculating a time difference between the first time and the current time by a second acquisition module, jumping to S22 if the time difference is smaller than a preset time difference threshold value, recording the current time as the first time if the time difference is larger than or equal to the preset time difference threshold value, and setting second characteristic data of different charging assemblies as null values by the second acquisition module, and jumping to S22;
s24, recording the current time as the first time, and collecting second characteristic data of different charging components by a second collecting module.
Specifically, in S21, the second acquisition module is started, and the second acquisition module records the current time as a first time, the role of the first time will be described below, in S22, it is determined whether to stop acquiring the second characteristic data of the different charging components, if yes, for example, when charging is finished, the acquisition of the second characteristic data of the different charging components should also be finished, if no, S23 is continuously performed, in S23, it is determined whether to receive an acquisition notification message from the first acquisition module, if yes, S24 is continuously performed, if no, the second acquisition module calculates a time difference between the first time and the current time, if the time difference is smaller than a preset time difference threshold, the execution is continuously skipped S22, if the time difference is greater than or equal to a preset time difference threshold, the second acquisition module is considered to fail to receive the acquisition notification message, the current time is recorded as the first time, the second acquisition module is set to be a value, if yes, the second acquisition module is considered to continuously performed S24, if the second acquisition module is considered to receive the current time and the second characteristic data of the different charging components is not successfully recorded as the first time difference.
Further, the second collecting module collects second characteristic data of different charging components of the charging module, and the method further comprises the following steps:
s25, judging whether to stop collecting the second characteristic data of different charging assemblies, if yes, ending the collection of the second characteristic data of different charging assemblies, and if no, continuing to execute S26;
s26, judging whether an acquisition notification message from a first acquisition module is received, if yes, continuing to execute S27, if no, calculating a time difference between the first time and the current time by a second acquisition module, jumping to S25 if the time difference is smaller than a preset time difference threshold value, recording the current time as the first time if the time difference is larger than or equal to the preset time difference threshold value, and jumping to S22 if the second characteristic data of different charging assemblies are set to be null values by the second acquisition module;
s27, the second acquisition module stores the time difference between the first time and the current time as a standard time difference, and simultaneously the second acquisition module records that the current time is the second time, and the second acquisition module acquires second characteristic data of different charging assemblies.
Specifically, in S25, it is determined whether to stop collecting the second feature data of the different charging components, if yes, the collection of the second feature data of the different charging components is finished, if no, S26 is continuously performed, in S26, it is determined whether to receive the collection notification message from the first collection module, if yes, S27 is continuously performed, if no, the second collection module calculates a time difference between the first time and the current time, if the time difference is smaller than a preset time difference threshold, S25 is continuously performed, if the time difference is greater than or equal to the preset time difference threshold, it is considered that the second collection module fails to continuously receive the collection notification message, the current time is recorded as the first time, the second collection module sets the second feature data of the different charging components to be null, S22 is continuously performed, in S27, it is considered that the second collection module continuously receives the collection notification message, the second collection module stores the time difference between the first time and the current time as a standard time difference, if the time difference is smaller than the preset time difference threshold, it is considered that the second collection module is actually used for the second collection module to record the second feature data of the second charging components.
Further, the second collecting module collects second characteristic data of different charging components of the charging module, and the method further comprises the following steps:
s28, judging whether to stop collecting the second characteristic data of different charging assemblies, if yes, ending the collection of the second characteristic data of different charging assemblies, and if no, continuing to execute S29;
s29, judging whether an acquisition notification message from the first acquisition module is received, if yes, continuing to execute S30, if not, calculating a time difference between a second time and a current time by the second acquisition module, jumping to S28 if the time difference is smaller than a standard time difference, recording the current time as the second time by the second acquisition module if the time difference is larger than or equal to the standard time difference, and jumping to S28 by the second acquisition module to acquire second characteristic data of different charging assemblies;
S30, the second acquisition module records that the current time is the second time, and the second acquisition module acquires second characteristic data of different charging assemblies, and the step S28 is skipped.
Specifically, in S28, it is determined whether to stop collecting the second feature data of the different charging components, if yes, the collection of the second feature data of the different charging components is ended, if no, S29 is continuously performed, in S29, it is determined whether to receive the collection notification message from the first collection module, if yes, S30 is continuously performed, if no, the second collection module calculates a time difference between the second time and the current time, if the time difference is smaller than the standard time difference, S28 is continuously performed, if the time difference is greater than or equal to the standard time difference, the second collection module records the current time as the second time, it is considered that the second collection module fails to receive the collection notification message, but because the second collection module has recorded a time interval when the first collection module sends the collection notification message, in fact, when the time difference is equal to the standard time difference, the second collection module collects the second feature data of the different charging components, S28 is continuously performed, in S30, the second collection module records the current time as the second time, it is considered that the second collection notification message is continuously performed when the second collection module is successful, and the second collection module is not performed. By the method from S21 to S30, it can be ensured that even if the second acquisition module cannot receive the acquisition notification message sent by the first acquisition module, the second characteristic data can be acquired at the same time as the first characteristic data is acquired by the first acquisition module.
In order to facilitate understanding of the processes of S21 to S30, for example, 10 minutes, 20 minutes, 30 minutes … …, and then send an acquisition notification message to the second acquisition module after the first acquisition module starts charging, and the first acquisition module acquires the first feature data after 12 minutes, 22 minutes, and 32 minutes … … after the first acquisition module starts charging, first, S21 to S24 are performed, 12 minutes after the start charging, the second acquisition module receives the acquisition notification message while the second acquisition module acquires the second feature data, second, S25 to S27 are performed, and 22 minutes after the start charging, the second acquisition module receives the acquisition notification message, the time difference between the current received acquisition notification message and the last received acquisition notification message is stored as a standard time difference, while the second acquisition module acquires the second feature data, and finally, S28 to S30 are performed, and the second acquisition module does not receive the acquisition notification message after the start charging, but because the second acquisition module has stored the standard time difference, the second acquisition module can still acquire the second feature data after the start charging for 32 minutes, so that the first and second feature data and the second feature data are the same.
Further, when the analysis module obtains that the charging state of any one of the charging components is abnormal through analysis, the analysis module sends reminding information to a user of the vehicle. Specifically, when the analysis module analyzes and processes the first characteristic data and the second characteristic data sent by the first acquisition module and the second acquisition module, the first characteristic data corresponding to the second characteristic data with empty content needs to be discarded, so that the accuracy of an analysis result is ensured, and when the charging state of any charging assembly is abnormal, reminding information is sent to a user of the vehicle, so that the user of the vehicle can be reminded of timely paying attention to charging safety, and loss is avoided.
Referring to fig. 2, the invention further provides a new energy vehicle power battery charging safety monitoring and early warning system, which comprises a charging module, a first acquisition module, a second acquisition module, a network module and an analysis module, and is used for realizing the new energy vehicle power battery charging safety monitoring and early warning method as described above.
Specifically, the functions of the respective modules are described as follows:
The charging module consists of a plurality of charging components and is used for providing a power source for the vehicle;
the first acquisition module is used for sending an acquisition notification message to the second acquisition module every time a preset time period passes, acquiring first characteristic data of different charging components of the charging module at different preset acquisition times, and sending the acquired first characteristic data of the different charging components to the analysis module in a secret sending mode;
The second acquisition module is used for acquiring second characteristic data of different charging components of the charging module and sending the acquired second characteristic data of different charging components to the analysis module in a secret sending mode;
The network module is used for transmitting data between the first acquisition module and the analysis module and between the second acquisition module and the analysis module;
the analysis module is used for receiving the first characteristic data of different charging components sent by the first acquisition module and the second characteristic data of different charging components sent by the second acquisition module, and the analysis module analyzes the charging states of different charging components based on the received first characteristic data and the second characteristic data of different charging components.
It should be understood that, although the steps in the flowcharts of the embodiments of the present invention are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in various embodiments may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor do the order in which the sub-steps or stages are performed necessarily performed in sequence, but may be performed alternately or alternately with at least a portion of the sub-steps or stages of other steps or other steps.
Those skilled in the art will appreciate that implementing all or part of the above-described methods may be accomplished by way of computer programs, which may be stored on a non-transitory computer readable storage medium, and which, when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (SYNCHLINK) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The technical features of the above embodiments may be arbitrarily combined, and for brevity, all of the possible combinations of the technical features of the above embodiments are not described, however, they should be considered as the scope of the description of the present specification as long as there is no contradiction between the combinations of the technical features.
The foregoing examples have been presented to illustrate only a few embodiments of the invention and are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (9)
1. The new energy vehicle power battery charging safety monitoring and early warning method is characterized by comprising the following steps of:
S1, setting a charging module, a first acquisition module, a second acquisition module, a network module and an analysis module, wherein the charging module comprises a plurality of charging components, the first acquisition module sends an acquisition notification message to the second acquisition module every time a preset time period passes, and the first acquisition module acquires first characteristic data of different charging components of the charging module at preset different acquisition times and sends the acquired first characteristic data of different charging components to the analysis module in a secret sending mode;
S2, the second acquisition module acquires second characteristic data of different charging components of the charging module, and sends the acquired second characteristic data of the different charging components to the analysis module in a secret sending mode;
s3, the analysis module receives the first characteristic data of the different charging assemblies sent by the first acquisition module and the second characteristic data of the different charging assemblies sent by the second acquisition module, and analyzes the charging states of the different charging assemblies based on the received first characteristic data and the received second characteristic data of the different charging assemblies;
the secret sending mode comprises the following steps of:
s11, calculating a representative value of the transmission data by the sender, carrying out secret processing on the representative value by using a first password of the sender to obtain a secret representative value, carrying out secret processing on the transmission data by the sender through a second password of the sender to obtain secret transmission data, and carrying out secret processing on the second password of the sender according to the first password of the receiver to obtain a secret second password by the sender;
S12, the sender forms transmission data by the secret representative value, secret transmission data and secret second password, and the sender transmits the transmission data to the receiver through the network module.
2. The method for monitoring and early warning of charging safety of a power battery of a new energy vehicle according to claim 1, wherein the secret transmission mode further comprises the following steps:
S13, the receiving party receives the transmission data, meanwhile, the receiving party uses a second password of the receiving party to decrypt the secret second password contained in the transmission data to obtain a second password of the sending party, the receiving party decrypts secret sending data contained in the transmission data through the second password of the sending party to obtain sending data, and the receiving party also decrypts the secret representative value contained in the transmission data according to a third password of the sending party to obtain a representative value;
And S14, the receiver calculates the representative value of the decrypted transmission data in the same way as the sender calculates the representative value, and when the calculated representative value is the same as the decrypted representative value, the receiver judges that the decrypted transmission data is reliable, and meanwhile stores the obtained transmission data, and when the calculated representative value is different from the decrypted representative value, the receiver judges that the decrypted transmission data is unreliable.
3. The method for monitoring and early warning of charging safety of a power battery of a new energy vehicle according to claim 2, wherein the sender pre-stores a first password of the receiver.
4. The method for monitoring and early warning charging safety of a power battery of a new energy vehicle according to claim 3, wherein the receiving party stores a third password of the sending party in advance.
5. The method for monitoring and early warning charging safety of a power battery of a new energy vehicle according to claim 1, wherein the second acquisition module acquires the second characteristic data of the charging assembly different from the charging module, and the method comprises the following steps:
s21, starting the second acquisition module, and recording the current time as the first time by the second acquisition module;
S22, judging whether to stop collecting the second characteristic data of different charging assemblies, if yes, ending the collection of the second characteristic data of different charging assemblies, and if no, continuing to execute S23;
S23, judging whether the acquisition notification message from the first acquisition module is received, if yes, continuing to execute S24, if no, calculating the time difference between the first time and the current time by the second acquisition module, jumping to S22 if the time difference is smaller than a preset time difference threshold, recording the current time as the first time if the time difference is larger than or equal to the preset time difference threshold, and jumping to S22 if the second characteristic data of different charging assemblies are set to be null by the second acquisition module;
s24, recording the current time as the first time, and collecting the second characteristic data of different charging assemblies by the second collecting module.
6. The method for monitoring and early warning charging safety of a power battery of a new energy vehicle according to claim 5, wherein the second acquisition module acquires second characteristic data of different charging components of the charging module, and the method further comprises the following steps:
s25, judging whether to stop collecting the second characteristic data of different charging assemblies, if yes, ending the collection of the second characteristic data of different charging assemblies, and if no, continuing to execute S26;
S26, judging whether the acquisition notification message from the first acquisition module is received, if yes, continuing to execute S27, if no, calculating the time difference between the first time and the current time by the second acquisition module, jumping to S25 if the time difference is smaller than a preset time difference threshold, recording the current time as the first time if the time difference is larger than or equal to the preset time difference threshold, and jumping to S22 if the second characteristic data of different charging assemblies are set to be null by the second acquisition module;
s27, the second acquisition module stores the time difference between the first time and the current time as a standard time difference, and simultaneously the second acquisition module records that the current time is a second time, and the second acquisition module acquires the second characteristic data of different charging assemblies.
7. The method for monitoring and early warning charging safety of a power battery of a new energy vehicle according to claim 6, wherein the second acquisition module acquires second characteristic data of different charging components of the charging module, and further comprising the steps of:
s28, judging whether to stop collecting the second characteristic data of different charging assemblies, if yes, ending the collection of the second characteristic data of different charging assemblies, and if no, continuing to execute S29;
s29, judging whether the acquisition notification message from the first acquisition module is received, if yes, continuing to execute S30, if no, calculating the time difference between the second time and the current time by the second acquisition module, jumping to S28 if the time difference is smaller than the standard time difference, and recording the current time as the second time by the second acquisition module if the time difference is larger than or equal to the standard time difference, and acquiring the second characteristic data of different charging assemblies by the second acquisition module, and jumping to S28;
s30, the second acquisition module records that the current time is a second time, and the second acquisition module acquires different second characteristic data of the charging assembly and jumps to S28.
8. The method for monitoring and early warning charging safety of a power battery of a new energy vehicle according to claim 1, wherein the analysis module sends reminding information to a user of the vehicle when the analysis module obtains that the charging state of any one of the charging assemblies is abnormal through analysis.
9. A new energy vehicle power battery charging safety monitoring and early warning system for implementing the method as claimed in any one of claims 1-8, comprising the following modules:
The charging module consists of a plurality of charging components and is used for providing a power source for the vehicle;
the first acquisition module is used for sending an acquisition notification message to the second acquisition module every time a preset time period passes, acquiring first characteristic data of different charging components of the charging module at different preset acquisition times, and sending the acquired first characteristic data of the different charging components to the analysis module in a secret sending mode;
The second acquisition module is used for acquiring second characteristic data of different charging components of the charging module and sending the acquired second characteristic data of different charging components to the analysis module in a secret sending mode;
The network module is used for transmitting data between the first acquisition module and the analysis module and between the second acquisition module and the analysis module;
the analysis module is used for receiving the first characteristic data of different charging components sent by the first acquisition module and the second characteristic data of different charging components sent by the second acquisition module, and the analysis module analyzes the charging states of different charging components based on the received first characteristic data and the second characteristic data of different charging components.
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