CN108896849B - Wireless charging system fault identification method and device and computer equipment - Google Patents
Wireless charging system fault identification method and device and computer equipment Download PDFInfo
- Publication number
- CN108896849B CN108896849B CN201810795779.9A CN201810795779A CN108896849B CN 108896849 B CN108896849 B CN 108896849B CN 201810795779 A CN201810795779 A CN 201810795779A CN 108896849 B CN108896849 B CN 108896849B
- Authority
- CN
- China
- Prior art keywords
- value
- current
- voltage
- receiving side
- wireless charging
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000005259 measurement Methods 0.000 claims abstract description 167
- 238000005070 sampling Methods 0.000 claims description 37
- 238000001914 filtration Methods 0.000 claims description 26
- 238000004590 computer program Methods 0.000 claims description 25
- 238000010586 diagram Methods 0.000 description 8
- 230000001360 synchronised effect Effects 0.000 description 2
- 206010014357 Electric shock Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application relates to a fault identification method and system for a wireless charging system, computer equipment and a storage medium. The method comprises the following steps: acquiring a transmitting side voltage measurement value, a transmitting side current measurement value, a receiving side voltage measurement value and a receiving side current measurement value; querying a circuit fault set according to the transmitting side voltage measurement value, the transmitting side current measurement value, the receiving side voltage measurement value and the receiving side current measurement value; the circuit fault set records the corresponding relation between a transmitting side voltage value, a transmitting side current value, a receiving side voltage value and a receiving side current value in the wireless charging system and a fault point of the wireless charging system respectively; and determining a fault point of the wireless charging system according to the query result. According to the fault identification method of the wireless charging system, the accuracy rate of identifying the fault of the wireless charging system can be improved.
Description
Technical Field
The application relates to the technical field of power electronic system fault identification, in particular to a wireless charging system fault identification method and device and computer equipment.
Background
The wireless charging system comprises a transmitting side and a receiving side, wherein electric energy is transmitted to the receiving side connected with a load through the transmitting side and is used for charging the load. Compared with wired charging, the wireless charging system avoids a series of problems caused by too frequent use of power supply wires and exposure of conductors, does not have friction loss of charging system equipment, reduces the risk of electric shock, improves the durability, safety and convenience of electric energy transmission, is widely applied, and has higher and higher requirements on the safety and stability of system operation.
The traditional fault identification method of the wireless charging system is to combine device parameters corresponding to each device in a charging circuit with a circuit equation, calculate the parameter value range of each device, and judge that the circuit has faults if the actual numerical value exceeds the allowable range. However, the conventional fault identification method for the wireless charging system has low accuracy because the wireless charging system needs to be switched on and off frequently during charging.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a wireless charging system fault identification method, a wireless charging system fault identification device, and a computer device, which can improve the accuracy of wireless charging system fault identification.
A wireless charging system fault identification method comprises the following steps:
acquiring a transmitting side voltage measurement value, a transmitting side current measurement value, a receiving side voltage measurement value and a receiving side current measurement value;
querying a circuit fault set according to the transmitting side voltage measurement value, the transmitting side current measurement value, the receiving side voltage measurement value and the receiving side current measurement value; the circuit fault set records the corresponding relation between a transmitting side voltage value, a transmitting side current value, a receiving side voltage value and a receiving side current value in the wireless charging system and a fault point of the wireless charging system respectively;
and determining a fault point of the wireless charging system according to the query result.
In one embodiment, the method for identifying a fault in a wireless charging system, wherein the obtaining of the transmit-side voltage measurement, the transmit-side current measurement, the receive-side voltage measurement, and the receive-side current measurement includes:
sampling the voltage of the transmitting side after rectification and filtering to obtain a voltage measured value of the transmitting side;
sampling the current of the transmitting side after rectification and filtering to obtain a current measured value of the transmitting side;
sampling the voltage of the receiving side after rectification and filtering to obtain a voltage measurement value of the receiving side;
and sampling the current of the receiving side after rectification and filtering to obtain a current measurement value of the receiving side.
In one embodiment, the method for identifying a fault in a wireless charging system further includes:
and respectively determining a circuit fault set according to the value ranges of the voltage of the transmitting side, the current of the transmitting side, the voltage of the receiving side and the current of the receiving side when the wireless charging system works normally.
In one embodiment, the method for identifying a fault of a wireless charging system, which determines a circuit fault set according to value ranges of a voltage at a transmitting side, a current at the transmitting side, a voltage at a receiving side, and a current at the receiving side when the wireless charging system is in normal operation, includes:
setting the maximum value of the voltage of the transmitting side of the wireless charging system during normal work as a first transmitting side voltage reference value, and setting the minimum value of the voltage of the transmitting side of the wireless charging system during normal work as a second transmitting side voltage reference value;
setting the maximum value of the current of the transmitting side of the wireless charging system during normal work as a first transmitting side current reference value, and setting the minimum value of the current of the transmitting side of the wireless charging system during normal work as a second transmitting side current reference value;
setting the maximum value of the voltage of the receiving side as a first receiving side voltage reference value when the wireless charging system works normally, and setting the minimum value of the voltage of the receiving side as a second receiving side voltage reference value when the wireless charging system works normally;
setting the maximum value of the current of the receiving side as a first current reference value of the receiving side when the wireless charging system works normally, and setting the minimum value of the current of the receiving side when the wireless charging system works normally as a second current reference value of the receiving side;
a set of circuit faults is determined from the first transmit-side voltage reference value, the second transmit-side voltage reference value, the first transmit-side current reference value, the second transmit-side current reference value, the first receive-side voltage reference value, the second receive-side voltage reference value, the first receive-side current reference value, and the second receive-side current reference value.
In one embodiment, the method for identifying a fault in a wireless charging system, the querying a set of circuit faults based on the transmit-side voltage measurement, the transmit-side current measurement, the receive-side voltage measurement, and the receive-side current measurement, includes:
comparing the transmit side voltage measurement with a first transmit side voltage reference and a second transmit side voltage reference, respectively;
comparing the transmit side current measurement with a first transmit side current reference and a second transmit side current reference, respectively;
comparing the receive side voltage measurement with a first receive side voltage reference and a second receive side voltage reference, respectively;
comparing the receive side current measurement with a first receive side current reference and a second receive side current reference, respectively.
In one embodiment, the method for identifying a fault of a wireless charging system, where the determining a fault point of the wireless charging system according to the query result includes:
and if the measured value of the voltage of the transmitting side is greater than the reference value of the voltage of the first transmitting side, the measured value of the current of the transmitting side is smaller than the reference value of the current of the second transmitting side, the measured value of the voltage of the receiving side is smaller than the reference value of the voltage of the second receiving side, and the measured value of the current of the receiving side is greater than the reference value of the current of the second receiving side and smaller than the reference value of the current of the first receiving side, judging that the inverter circuit of the transmitting side has faults.
In one embodiment, the method for identifying a fault of a wireless charging system, where the determining a fault point of the wireless charging system according to the query result includes:
and if the measured value of the voltage of the transmitting side is smaller than the reference value of the voltage of the second transmitting side, the measured value of the current of the transmitting side is larger than the reference value of the current of the first transmitting side, the measured value of the voltage of the receiving side is smaller than the reference value of the voltage of the second receiving side, and the measured value of the current of the receiving side is smaller than the reference value of the current of the second receiving side, judging that the rectifying circuit of the receiving side is damaged.
A wireless charging system fault identification device, comprising:
the acquisition module is used for acquiring a transmitting side voltage measurement value, a transmitting side current measurement value, a receiving side voltage measurement value and a receiving side current measurement value;
the query module is used for querying a circuit fault set according to the transmitting side voltage measured value, the transmitting side current measured value, the receiving side voltage measured value and the receiving side current measured value; the circuit fault set records the corresponding relation between a transmitting side voltage value, a transmitting side current value, a receiving side voltage value and a receiving side current value in the wireless charging system and a fault point of the wireless charging system respectively;
and the judging module is used for determining the fault point of the wireless charging system according to the query result.
A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
acquiring a transmitting side voltage measurement value, a transmitting side current measurement value, a receiving side voltage measurement value and a receiving side current measurement value;
querying a circuit fault set according to the transmitting side voltage measurement value, the transmitting side current measurement value, the receiving side voltage measurement value and the receiving side current measurement value; the circuit fault set records the corresponding relation between a transmitting side voltage value, a transmitting side current value, a receiving side voltage value and a receiving side current value in the wireless charging system and a fault point of the wireless charging system respectively;
and determining a fault point of the wireless charging system according to the query result.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:
acquiring a transmitting side voltage measurement value, a transmitting side current measurement value, a receiving side voltage measurement value and a receiving side current measurement value;
querying a circuit fault set according to the transmitting side voltage measurement value, the transmitting side current measurement value, the receiving side voltage measurement value and the receiving side current measurement value; the circuit fault set records the corresponding relation between a transmitting side voltage value, a transmitting side current value, a receiving side voltage value and a receiving side current value in the wireless charging system and a fault point of the wireless charging system respectively;
and determining a fault point of the wireless charging system according to the query result.
According to the fault identification method and device for the wireless charging system, the circuit fault set is inquired according to the acquired transmitting side voltage measured value, transmitting side current measured value, receiving side voltage measured value and receiving side current measured value, the fault point of the wireless charging system is determined according to the inquiry result, parameters of each device are not required to be measured, the influence of high switching frequency on device parameter measurement in the charging process is avoided, and further the accuracy of identifying faults of the wireless charging system is improved.
Drawings
Fig. 1 is a diagram illustrating an exemplary embodiment of a wireless charging system fault identification method;
fig. 2 is a schematic flow chart illustrating a method for identifying a fault in a wireless charging system according to an embodiment;
FIG. 3 is a schematic diagram of a wireless charging system according to an embodiment;
fig. 4 is a schematic structural diagram of a wireless charging system according to another embodiment;
FIG. 5 is a schematic diagram of a wireless charging system according to yet another embodiment;
fig. 6 is a schematic flow chart illustrating a method for identifying a fault in a wireless charging system according to another embodiment;
FIG. 7 is a schematic diagram of a wireless charging system according to yet another embodiment;
FIG. 8 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The method for identifying the fault of the wireless charging system can be applied to the application environment shown in fig. 1. Wherein the terminal 102 and the server 104 communicate via a network. The terminal 102 may be, but not limited to, various personal computers, notebook computers, smart phones, tablet computers, and portable wearable devices, and the server 104 may be implemented by an independent server or a server cluster formed by a plurality of servers.
In one embodiment, as shown in fig. 2, a method for identifying a fault of a wireless charging system is provided, which is described by taking the method as an example applied to the server in fig. 1, and includes the following steps:
As shown in fig. 3, the wireless charging system may include a transmitting side and a receiving side, and the load may be charged by the commercial power through the wireless charging system.
For the above steps, as shown in fig. 4, the transmitting side may include a transmitting side rectifying circuit, a transmitting side filter circuit, a transmitting side Pulse Width Modulation (PWM) circuit, a transmitting side resonant network, and a transmitting side control circuit; the receiving side may include a receiving side resonant network, a receiving side rectifying circuit, a receiving side filtering circuit, and a receiving side control circuit. The transmitting side voltage value, the transmitting side current value, the receiving side voltage value and the receiving side current value may be a transmitting side voltage threshold value, a transmitting side current threshold value, a receiving side voltage threshold value and a receiving side current threshold value corresponding to the circuit fault, respectively. The correspondence relationship between the circuit fault point and the transmission-side voltage value, the transmission-side current value, the reception-side voltage value, and the reception-side current value, respectively, can be characterized by a circuit fault set.
And step 206, determining a fault point of the wireless charging system according to the query result.
In the above step, the fault point of the wireless charging system may be determined by comparing the measured transmit-side voltage measurement value, the measured transmit-side current value, the measured receive-side voltage measurement value, and the measured receive-side current value with the transmit-side voltage value, the transmit-side current value, the measured receive-side voltage value, and the measured receive-side current value recorded in the circuit fault set, respectively, and according to the comparison result.
According to the embodiment, the circuit fault set is inquired according to the acquired transmitting side voltage measured value, transmitting side current measured value, receiving side voltage measured value and receiving side current measured value, the fault point of the wireless charging system is determined according to the inquiry result, parameters of each device do not need to be measured, the influence of high switching frequency on device parameter measurement in the charging process is avoided, and further the accuracy of identifying faults of the wireless charging system is improved.
In one embodiment, for step 202, the transmit side voltage measurement, the transmit side current measurement, the receive side voltage measurement, and the receive side current measurement may be obtained by: sampling the voltage of the transmitting side after rectification and filtering to obtain a voltage measured value of the transmitting side; sampling the current of the transmitting side after rectification and filtering to obtain a current measured value of the transmitting side; sampling the voltage of the receiving side after rectification and filtering to obtain a voltage measurement value of the receiving side; and sampling the current of the receiving side after rectification and filtering to obtain a current measurement value of the receiving side.
In this embodiment, as shown in fig. 5, on the transmitting side, the utility power may be rectified by a transmitting side rectifying circuit, filtered by a transmitting side filtering circuit, and then connected to the transmitting side resonant network by a transmitting side PWM inverter circuit, and the transmitting side controller is also connected to the transmitting side PWM inverter circuit, and outputs a specific pulse signal by a PWM technique to control the on/off of the switching device in the PWM inverter circuit. The receiving side resonant network induces the electric energy of the transmitting side through a coil in the receiving side resonant network, then the electric energy is rectified through a receiving side rectifying circuit, the rectified circuit is filtered through a receiving side filtering circuit, a receiving side controller controls the filtered voltage and current to be kept in a normal range, and finally the electric energy is transmitted to a load through the receiving side controller. The filtered voltage and current can be sampled at the transmitting side and the receiving side, the sampling value obtained at the transmitting side can be sent to the transmitting side controller, and the sampling value obtained at the receiving side can be sent to the receiving side controller. The receiving side controller and the transmitting side controller can also communicate wirelessly.
In the above embodiment, the sampling circuits are respectively arranged behind the transmitting side filter circuit and the receiving side filter circuit, the voltages and currents of the transmitting side and the receiving side are sampled, the circuit fault set is queried according to the obtained transmitting side voltage measurement value, transmitting side current measurement value, receiving side voltage measurement value and receiving side current measurement value, the fault point of the wireless charging system is determined according to the query result, the parameters of each device are not required to be measured, the influence of high switching frequency on device parameter measurement in the charging process is avoided, meanwhile, the sampling points can be reduced, the operation amount is reduced, and the cost is reduced.
In one embodiment, the following steps may also be included: and respectively determining a circuit fault set according to the value ranges of the voltage of the transmitting side, the current of the transmitting side, the voltage of the receiving side and the current of the receiving side when the wireless charging system works normally.
In the above embodiment, the corresponding relationship between the voltage value of the transmitting side, the current value of the transmitting side, the voltage value of the receiving side and the current value of the receiving side in the wireless charging system and the fault point of the wireless charging system may be determined according to the value ranges of the voltage of the transmitting side, the current of the transmitting side, the voltage of the receiving side and the current of the receiving side when the wireless charging system normally operates.
In the above embodiment, the sampling circuits are respectively arranged behind the transmitting side filter circuit and the receiving side filter circuit, the voltages and currents of the transmitting side and the receiving side are sampled, the circuit fault set is queried according to the obtained transmitting side voltage measurement value, transmitting side current measurement value, receiving side voltage measurement value and receiving side current measurement value, the fault point of the wireless charging system is determined according to the query result, the parameters of each device are not required to be measured, the influence of high switching frequency on device parameter measurement in the charging process is avoided, meanwhile, the sampling points can be reduced, the operation amount is reduced, and the cost is reduced.
In one embodiment, the set of circuit faults may be determined by: setting the maximum value of the voltage of the transmitting side of the wireless charging system during normal work as a first transmitting side voltage reference value, and setting the minimum value of the voltage of the transmitting side of the wireless charging system during normal work as a second transmitting side voltage reference value; setting the maximum value of the current of the transmitting side of the wireless charging system during normal work as a first transmitting side current reference value, and setting the minimum value of the current of the transmitting side of the wireless charging system during normal work as a second transmitting side current reference value; setting the maximum value of the voltage of the receiving side as a first receiving side voltage reference value when the wireless charging system works normally, and setting the minimum value of the voltage of the receiving side as a second receiving side voltage reference value when the wireless charging system works normally; setting the maximum value of the current of the receiving side as a first current reference value of the receiving side when the wireless charging system works normally, and setting the minimum value of the current of the receiving side when the wireless charging system works normally as a second current reference value of the receiving side; a set of circuit faults is determined from the first transmit-side voltage reference value, the second transmit-side voltage reference value, the first transmit-side current reference value, the second transmit-side current reference value, the first receive-side voltage reference value, the second receive-side voltage reference value, the first receive-side current reference value, and the second receive-side current reference value.
In the above embodiments, the transmission-side voltage reference value, the transmission-side current reference value, the reception-side current reference value, and the reception-side current reference value may be adjusted as needed. The circuit fault set may be represented in a list form or an array form, and the presentation manner of the circuit fault set is not limited herein.
In the above embodiment, the sampling circuits are respectively arranged behind the transmitting side filter circuit and the receiving side filter circuit, the voltages and currents of the transmitting side and the receiving side are sampled, the circuit fault set is queried according to the obtained transmitting side voltage measurement value, transmitting side current measurement value, receiving side voltage measurement value and receiving side current measurement value, the fault point of the wireless charging system is determined according to the query result, the parameters of each device are not required to be measured, the influence of high switching frequency on device parameter measurement in the charging process is avoided, meanwhile, the sampling points can be reduced, the operation amount is reduced, and the cost is reduced.
In one embodiment, step 204 may be implemented by: comparing the transmit side voltage measurement with a first transmit side voltage reference and a second transmit side voltage reference, respectively; comparing the transmit side current measurement with a first transmit side current reference and a second transmit side current reference, respectively; comparing the receiving side voltage measurement value with a first receiving side voltage reference value and a second receiving side voltage reference value respectively; the receive-side current measurement is compared to a first receive-side current reference and a second receive-side current reference, respectively.
In one embodiment, as shown in fig. 6, the transmitting side and the receiving side may be sampled, respectively, and the sampled transmitting side measured voltage value and the sampled transmitting side measured current value may be transmitted to the transmitting side controller, and the sampled receiving side measured voltage value and the sampled receiving side measured current value may be transmitted to the receiving side controller. The receiving side controller can send the sampled receiving side measured voltage value and receiving side measured current value to the transmitting side controller through wireless communication, a fault identification module can be arranged in the transmitting side controller, and the fault identification module is used for executing the fault identification method and identifying fault points of the wireless charging system. The fault identification module can also be arranged in the receiving side controller, the transmitting side controller can send the acquired transmitting side measured voltage value and transmitting side measured current value to the receiving side controller, and then the fault identification module in the receiving side controller identifies fault points of the wireless charging system.
In the above embodiment, the sampling circuits are respectively arranged behind the transmitting side filter circuit and the receiving side filter circuit, the voltages and currents of the transmitting side and the receiving side are sampled, the circuit fault set is queried according to the obtained transmitting side voltage measurement value, transmitting side current measurement value, receiving side voltage measurement value and receiving side current measurement value, the fault point of the wireless charging system is determined according to the query result, the parameters of each device are not required to be measured, the influence of high switching frequency on device parameter measurement in the charging process is avoided, meanwhile, the sampling points can be reduced, the operation amount is reduced, and the cost is reduced.
In one embodiment, the point of failure of the wireless charging system may be determined for step 206 by: and if the measured value of the voltage of the transmitting side is smaller than the reference value of the voltage of the second transmitting side, the measured value of the current of the transmitting side is larger than the reference value of the current of the first transmitting side, the measured value of the voltage of the receiving side is smaller than the reference value of the voltage of the second receiving side, and the measured value of the current of the receiving side is smaller than the reference value of the current of the second receiving side, the rectifying circuit of the receiving side is.
In the above embodiment, if the first transmitting-side voltage reference value is U11, the second transmitting-side voltage reference value is U12, the first transmitting-side current reference value is a11, the second transmitting-side current reference value is a12, the first receiving-side voltage reference value is U21, the second receiving-side voltage reference value is U22, the first receiving-side current reference value is a21, and the second receiving-side current reference value is a22, the set of circuit faults may include table 1, and it may be determined that the transmitting-side inverter circuit is damaged according to table 1.
TABLE 1
In the above embodiment, the sampling circuits are respectively arranged behind the transmitting side filter circuit and the receiving side filter circuit, the voltages and currents of the transmitting side and the receiving side are sampled, the circuit fault set is queried according to the obtained transmitting side voltage measurement value, transmitting side current measurement value, receiving side voltage measurement value and receiving side current measurement value, the fault point of the wireless charging system is determined according to the query result, the parameters of each device are not required to be measured, the influence of high switching frequency on device parameter measurement in the charging process is avoided, meanwhile, the sampling points can be reduced, the operation amount is reduced, and the cost is reduced.
In one embodiment, step 206 may also determine a point of failure of the wireless charging system by: and if the measured value of the voltage of the transmitting side is greater than the first voltage reference value of the transmitting side, the measured value of the current of the transmitting side is less than the second current reference value of the transmitting side, the measured value of the voltage of the receiving side is less than the second voltage reference value of the receiving side, and the measured value of the current of the receiving side is greater than the second current reference value of the receiving side and less than the first current reference value of the receiving side, judging that the inverter circuit of the transmitting side has faults.
The set of circuit faults may also include table 2 from which a transmit side inverter circuit failure may be determined. Tables 1 and 2 are only used to show the voltage current reference value setting and the method to which the actual voltage current is compared, and not every wireless charging system may apply the comparison rule in the tables. And may identify more faults by formulating other comparison rules. Reasonable voltage and current reference value settings can be adjusted as needed.
TABLE 2
In the above embodiment, the sampling circuits are respectively arranged behind the transmitting side filter circuit and the receiving side filter circuit, the voltages and currents of the transmitting side and the receiving side are sampled, the circuit fault set is queried according to the obtained transmitting side voltage measurement value, transmitting side current measurement value, receiving side voltage measurement value and receiving side current measurement value, the fault point of the wireless charging system is determined according to the query result, the parameters of each device are not required to be measured, the influence of high switching frequency on device parameter measurement in the charging process is avoided, meanwhile, the sampling points can be reduced, the operation amount is reduced, and the cost is reduced.
It should be understood that although the steps in the flowcharts of fig. 2 and 6 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2 and 6 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least some of the sub-steps or stages of other steps.
In one embodiment, as shown in fig. 7, there is provided a wireless charging system fault identification apparatus including:
the acquisition module is used for acquiring a transmitting side voltage measurement value, a transmitting side current measurement value, a receiving side voltage measurement value and a receiving side current measurement value;
the query module is used for querying a circuit fault set according to the transmitting side voltage measurement value, the transmitting side current measurement value, the receiving side voltage measurement value and the receiving side current measurement value; the circuit fault set records the corresponding relation between a transmitting side voltage value, a transmitting side current value, a receiving side voltage value and a receiving side current value in the wireless charging system and a fault point of the wireless charging system respectively;
and the judging module is used for determining the fault point of the wireless charging system according to the query result.
For specific limitations of the wireless charging system fault identification device, reference may be made to the above limitations of the wireless charging system fault identification method, which is not described herein again. All or part of the modules in the wireless charging system fault identification device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
It should be noted that the terms "first \ second \ third" related to the embodiments of the present invention are merely used for distinguishing similar objects, and do not represent a specific ordering for the objects, and it should be understood that "first \ second \ third" may exchange a specific order or sequence order if allowed. It should be understood that the terms first, second, and third, as used herein, are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or otherwise described herein.
The terms "comprises" and "comprising," and any variations thereof, of embodiments of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or (module) elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Reference herein to "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as shown in fig. 8. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the computer device is used to store wireless charging system fault identification data. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a wireless charging system fault identification method.
Those skilled in the art will appreciate that the architecture shown in fig. 8 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
acquiring a transmitting side voltage measurement value, a transmitting side current measurement value, a receiving side voltage measurement value and a receiving side current measurement value;
querying a circuit fault set according to the transmitting side voltage measurement value, the transmitting side current measurement value, the receiving side voltage measurement value and the receiving side current measurement value; the circuit fault set records the corresponding relation between a transmitting side voltage value, a transmitting side current value, a receiving side voltage value and a receiving side current value in the wireless charging system and a fault point of the wireless charging system respectively;
and determining a fault point of the wireless charging system according to the query result.
In one embodiment, the processor, when executing the computer program, further performs the steps of: sampling the voltage of the transmitting side after rectification and filtering to obtain a voltage measured value of the transmitting side; sampling the current of the transmitting side after rectification and filtering to obtain a current measured value of the transmitting side; sampling the voltage of the receiving side after rectification and filtering to obtain a voltage measurement value of the receiving side; and sampling the current of the receiving side after rectification and filtering to obtain a current measurement value of the receiving side.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and respectively determining a circuit fault set according to the value ranges of the voltage of the transmitting side, the current of the transmitting side, the voltage of the receiving side and the current of the receiving side when the wireless charging system works normally.
In one embodiment, the processor, when executing the computer program, further performs the steps of: setting the maximum value of the voltage of the transmitting side of the wireless charging system during normal work as a first transmitting side voltage reference value, and setting the minimum value of the voltage of the transmitting side of the wireless charging system during normal work as a second transmitting side voltage reference value; setting the maximum value of the current of the transmitting side of the wireless charging system during normal work as a first transmitting side current reference value, and setting the minimum value of the current of the transmitting side of the wireless charging system during normal work as a second transmitting side current reference value; setting the maximum value of the voltage of the receiving side as a first receiving side voltage reference value when the wireless charging system works normally, and setting the minimum value of the voltage of the receiving side as a second receiving side voltage reference value when the wireless charging system works normally; setting the maximum value of the current of the receiving side as a first current reference value of the receiving side when the wireless charging system works normally, and setting the minimum value of the current of the receiving side when the wireless charging system works normally as a second current reference value of the receiving side; a set of circuit faults is determined from the first transmit-side voltage reference value, the second transmit-side voltage reference value, the first transmit-side current reference value, the second transmit-side current reference value, the first receive-side voltage reference value, the second receive-side voltage reference value, the first receive-side current reference value, and the second receive-side current reference value.
In one embodiment, the processor, when executing the computer program, further performs the steps of: comparing the transmit side voltage measurement with a first transmit side voltage reference and a second transmit side voltage reference, respectively; comparing the transmit side current measurement with a first transmit side current reference and a second transmit side current reference, respectively; comparing the receiving side voltage measurement value with a first receiving side voltage reference value and a second receiving side voltage reference value respectively; the receive-side current measurement is compared to a first receive-side current reference and a second receive-side current reference, respectively.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and if the measured value of the voltage of the transmitting side is greater than the first voltage reference value of the transmitting side, the measured value of the current of the transmitting side is less than the second current reference value of the transmitting side, the measured value of the voltage of the receiving side is less than the second voltage reference value of the receiving side, and the measured value of the current of the receiving side is greater than the second current reference value of the receiving side and less than the first current reference value of the receiving side, judging that the inverter circuit of the transmitting side has faults.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and if the measured value of the voltage of the transmitting side is smaller than the reference value of the voltage of the second transmitting side, the measured value of the current of the transmitting side is larger than the reference value of the current of the first transmitting side, the measured value of the voltage of the receiving side is smaller than the reference value of the voltage of the second receiving side, and the measured value of the current of the receiving side is smaller than the reference value of the current of the second receiving side, the rectifying circuit of the receiving side is.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
acquiring a transmitting side voltage measurement value, a transmitting side current measurement value, a receiving side voltage measurement value and a receiving side current measurement value;
querying a circuit fault set according to the transmitting side voltage measurement value, the transmitting side current measurement value, the receiving side voltage measurement value and the receiving side current measurement value; the circuit fault set records the corresponding relation between a transmitting side voltage value, a transmitting side current value, a receiving side voltage value and a receiving side current value in the wireless charging system and a fault point of the wireless charging system respectively;
and determining a fault point of the wireless charging system according to the query result.
In one embodiment, the computer program when executed by the processor further performs the steps of: sampling the voltage of the transmitting side after rectification and filtering to obtain a voltage measured value of the transmitting side; sampling the current of the transmitting side after rectification and filtering to obtain a current measured value of the transmitting side; sampling the voltage of the receiving side after rectification and filtering to obtain a voltage measurement value of the receiving side; and sampling the current of the receiving side after rectification and filtering to obtain a current measurement value of the receiving side.
In one embodiment, the computer program when executed by the processor further performs the steps of: and respectively determining a circuit fault set according to the value ranges of the voltage of the transmitting side, the current of the transmitting side, the voltage of the receiving side and the current of the receiving side when the wireless charging system works normally.
In one embodiment, the computer program when executed by the processor further performs the steps of: setting the maximum value of the voltage of the transmitting side of the wireless charging system during normal work as a first transmitting side voltage reference value, and setting the minimum value of the voltage of the transmitting side of the wireless charging system during normal work as a second transmitting side voltage reference value; setting the maximum value of the current of the transmitting side of the wireless charging system during normal work as a first transmitting side current reference value, and setting the minimum value of the current of the transmitting side of the wireless charging system during normal work as a second transmitting side current reference value; setting the maximum value of the voltage of the receiving side as a first receiving side voltage reference value when the wireless charging system works normally, and setting the minimum value of the voltage of the receiving side as a second receiving side voltage reference value when the wireless charging system works normally; setting the maximum value of the current of the receiving side as a first current reference value of the receiving side when the wireless charging system works normally, and setting the minimum value of the current of the receiving side when the wireless charging system works normally as a second current reference value of the receiving side; a set of circuit faults is determined from the first transmit-side voltage reference value, the second transmit-side voltage reference value, the first transmit-side current reference value, the second transmit-side current reference value, the first receive-side voltage reference value, the second receive-side voltage reference value, the first receive-side current reference value, and the second receive-side current reference value.
In one embodiment, the computer program when executed by the processor further performs the steps of: comparing the transmit side voltage measurement with a first transmit side voltage reference and a second transmit side voltage reference, respectively; comparing the transmit side current measurement with a first transmit side current reference and a second transmit side current reference, respectively; comparing the receiving side voltage measurement value with a first receiving side voltage reference value and a second receiving side voltage reference value respectively; the receive-side current measurement is compared to a first receive-side current reference and a second receive-side current reference, respectively.
In one embodiment, the computer program when executed by the processor further performs the steps of: and if the measured value of the voltage of the transmitting side is greater than the first voltage reference value of the transmitting side, the measured value of the current of the transmitting side is less than the second current reference value of the transmitting side, the measured value of the voltage of the receiving side is less than the second voltage reference value of the receiving side, and the measured value of the current of the receiving side is greater than the second current reference value of the receiving side and less than the first current reference value of the receiving side, judging that the inverter circuit of the transmitting side has faults.
In one embodiment, the computer program when executed by the processor further performs the steps of: and if the measured value of the voltage of the transmitting side is smaller than the reference value of the voltage of the second transmitting side, the measured value of the current of the transmitting side is larger than the reference value of the current of the first transmitting side, the measured value of the voltage of the receiving side is smaller than the reference value of the voltage of the second receiving side, and the measured value of the current of the receiving side is smaller than the reference value of the current of the second receiving side, the rectifying circuit of the receiving side is.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile 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 (S8nchlink) DRAM (SLDRAM), Rambus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A fault identification method for a wireless charging system is characterized by comprising the following steps:
acquiring a transmitting side voltage measurement value, a transmitting side current measurement value, a receiving side voltage measurement value and a receiving side current measurement value;
querying a circuit fault set according to the transmitting side voltage measurement value, the transmitting side current measurement value, the receiving side voltage measurement value and the receiving side current measurement value; the circuit fault set records the corresponding relation between a transmitting side voltage value, a transmitting side current value, a receiving side voltage value and a receiving side current value in the wireless charging system and a fault point of the wireless charging system respectively;
determining a fault point of the wireless charging system according to the query result; the fault point comprises at least one of a transmitting side inverter circuit in the wireless charging system and a receiving side rectifier circuit in the wireless charging system;
under the condition that the fault point comprises a transmitting side inverter circuit in the wireless charging system, if the query result shows that the transmitting side voltage measured value is greater than a first transmitting side voltage reference value, the transmitting side current measured value is smaller than a second transmitting side current reference value, the receiving side voltage measured value is smaller than a second receiving side voltage reference value, and the receiving side current measured value is greater than a second receiving side current reference value and smaller than a first receiving side current reference value, determining that the transmitting side inverter circuit has a fault;
the first transmitting side voltage reference value is the maximum value of transmitting side voltage when the wireless charging system normally works, the second transmitting side current reference value is the minimum value of transmitting side current when the wireless charging system normally works, the second receiving side voltage reference value is the minimum value of receiving side voltage when the wireless charging system normally works, the second receiving side current reference value is the minimum value of receiving side current when the wireless charging system normally works, and the first receiving side current reference value is the maximum value of receiving side current when the wireless charging system normally works.
2. The method of claim 1, wherein the obtaining the transmit-side voltage measurement, the transmit-side current measurement, the receive-side voltage measurement, and the receive-side current measurement comprises:
sampling the voltage of the transmitting side after rectification and filtering to obtain a voltage measured value of the transmitting side;
sampling the current of the transmitting side after rectification and filtering to obtain a current measured value of the transmitting side;
sampling the voltage of the receiving side after rectification and filtering to obtain a voltage measurement value of the receiving side;
and sampling the current of the receiving side after rectification and filtering to obtain a current measurement value of the receiving side.
3. The wireless charging system fault identification method of claim 1 or 2, further comprising:
and respectively determining a circuit fault set according to the value ranges of the voltage of the transmitting side, the current of the transmitting side, the voltage of the receiving side and the current of the receiving side when the wireless charging system works normally.
4. The method of claim 3, wherein the determining the set of circuit faults according to the value ranges of the voltage at the transmitting side, the current at the transmitting side, the voltage at the receiving side and the current at the receiving side respectively when the wireless charging system is in normal operation comprises:
setting the maximum value of the voltage of the transmitting side of the wireless charging system during normal work as a first transmitting side voltage reference value, and setting the minimum value of the voltage of the transmitting side of the wireless charging system during normal work as a second transmitting side voltage reference value;
setting the maximum value of the current of the transmitting side of the wireless charging system during normal work as a first transmitting side current reference value, and setting the minimum value of the current of the transmitting side of the wireless charging system during normal work as a second transmitting side current reference value;
setting the maximum value of the voltage of the receiving side as a first receiving side voltage reference value when the wireless charging system works normally, and setting the minimum value of the voltage of the receiving side as a second receiving side voltage reference value when the wireless charging system works normally;
setting the maximum value of the current of the receiving side as a first current reference value of the receiving side when the wireless charging system works normally, and setting the minimum value of the current of the receiving side when the wireless charging system works normally as a second current reference value of the receiving side;
a set of circuit faults is determined from the first transmit-side voltage reference value, the second transmit-side voltage reference value, the first transmit-side current reference value, the second transmit-side current reference value, the first receive-side voltage reference value, the second receive-side voltage reference value, the first receive-side current reference value, and the second receive-side current reference value.
5. The method of claim 4, wherein querying a set of circuit faults from the transmit side voltage measurement, the transmit side current measurement, the receive side voltage measurement, and the receive side current measurement comprises:
comparing the transmit side voltage measurement with a first transmit side voltage reference and a second transmit side voltage reference, respectively;
comparing the transmit side current measurement with a first transmit side current reference and a second transmit side current reference, respectively;
comparing the receive side voltage measurement with a first receive side voltage reference and a second receive side voltage reference, respectively;
comparing the receive side current measurement with a first receive side current reference and a second receive side current reference, respectively.
6. The method for identifying faults of a wireless charging system according to claim 5, wherein the determining fault points of the wireless charging system according to the query result comprises:
and if the measured value of the voltage of the transmitting side is smaller than the reference value of the voltage of the second transmitting side, the measured value of the current of the transmitting side is larger than the reference value of the current of the first transmitting side, the measured value of the voltage of the receiving side is smaller than the reference value of the voltage of the second receiving side, and the measured value of the current of the receiving side is smaller than the reference value of the current of the second receiving side, judging that the rectifying circuit of the receiving side is damaged.
7. A wireless charging system fault identification device, comprising:
the acquisition module is used for acquiring a transmitting side voltage measurement value, a transmitting side current measurement value, a receiving side voltage measurement value and a receiving side current measurement value;
the query module is used for querying a circuit fault set according to the transmitting side voltage measured value, the transmitting side current measured value, the receiving side voltage measured value and the receiving side current measured value; the circuit fault set records the corresponding relation between a transmitting side voltage value, a transmitting side current value, a receiving side voltage value and a receiving side current value in the wireless charging system and a fault point of the wireless charging system respectively;
the judging module is used for determining a fault point of the wireless charging system according to the query result; the fault point comprises at least one of a transmitting side inverter circuit in the wireless charging system and a receiving side rectifier circuit in the wireless charging system;
under the condition that the fault point comprises a transmitting side inverter circuit in the wireless charging system, if the query result shows that the transmitting side voltage measured value is greater than a first transmitting side voltage reference value, the transmitting side current measured value is smaller than a second transmitting side current reference value, the receiving side voltage measured value is smaller than a second receiving side voltage reference value, the receiving side current measured value is greater than a second receiving side current reference value and smaller than a first receiving side current reference value, and the judging module judges that the transmitting side inverter circuit has a fault;
the first transmitting side voltage reference value is the maximum value of transmitting side voltage when the wireless charging system normally works, the second transmitting side current reference value is the minimum value of transmitting side current when the wireless charging system normally works, the second receiving side voltage reference value is the minimum value of receiving side voltage when the wireless charging system normally works, the second receiving side current reference value is the minimum value of receiving side current when the wireless charging system normally works, and the first receiving side current reference value is the maximum value of receiving side current when the wireless charging system normally works.
8. The wireless charging system fault identification device of claim 7, wherein the obtaining module is specifically configured to sample the rectified and filtered voltage at the transmitting side to obtain a voltage measurement value at the transmitting side; sampling the current of the transmitting side after rectification and filtering to obtain a current measured value of the transmitting side; sampling the voltage of the receiving side after rectification and filtering to obtain a voltage measurement value of the receiving side; and sampling the current of the receiving side after rectification and filtering to obtain a current measurement value of the receiving side.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the wireless charging system fault identification method according to any one of claims 1 to 6 when executing the computer program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the wireless charging system fault identification method according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810795779.9A CN108896849B (en) | 2018-07-19 | 2018-07-19 | Wireless charging system fault identification method and device and computer equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810795779.9A CN108896849B (en) | 2018-07-19 | 2018-07-19 | Wireless charging system fault identification method and device and computer equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108896849A CN108896849A (en) | 2018-11-27 |
| CN108896849B true CN108896849B (en) | 2020-12-25 |
Family
ID=64351088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810795779.9A Expired - Fee Related CN108896849B (en) | 2018-07-19 | 2018-07-19 | Wireless charging system fault identification method and device and computer equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108896849B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110889465B (en) * | 2019-12-12 | 2020-11-03 | 武汉大学 | Power demand side equipment identification method and system based on self-adaptive resonant network |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100364866B1 (en) * | 2000-03-07 | 2002-12-16 | 정재기 | A Diagnostic System for Condenser Bank in Electric Power System |
| CN202721481U (en) * | 2012-08-18 | 2013-02-06 | 曾巧玲 | Novel wireless charger |
| CN202721505U (en) * | 2012-08-18 | 2013-02-06 | 冯蕊 | Novel intelligent rapid charging wireless charger |
| CN103280899B (en) * | 2013-05-24 | 2016-07-13 | 奇瑞汽车股份有限公司 | Wireless charging receiver, discharger and system |
| CN104868610A (en) * | 2015-05-22 | 2015-08-26 | 浙江圣奥家具制造有限公司 | Wireless charging system and method |
| CN205335926U (en) * | 2016-01-26 | 2016-06-22 | 成都多普力电子科技有限公司 | Wireless charging device of electronic automobile |
-
2018
- 2018-07-19 CN CN201810795779.9A patent/CN108896849B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN108896849A (en) | 2018-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9619612B2 (en) | Tester for equipment, apparatus, or component with distributed processing function | |
| US20150091499A1 (en) | Charger, terminal, charging system, and charging control method | |
| EP3185348B1 (en) | A battery information detection and control method, smart battery,terminal and computer storage medium | |
| CN110266071B (en) | Intelligent charging method, device, equipment and readable medium | |
| US20160344200A1 (en) | Quick-charging method and system | |
| US20180366954A1 (en) | System and method for controlling an electrical receptacle | |
| CN104810909A (en) | Quick charge control method and system | |
| EP3264565B1 (en) | Charging method and terminal | |
| CN110082595B (en) | Phase identification method and device for resident single-phase electric energy meter and computer equipment | |
| CN111406353A (en) | Quick charging method and device for battery, equipment to be charged and charging system | |
| AU2018429030B2 (en) | Charging device, mobile terminal, and charging control method | |
| CN107508354B (en) | A kind of charging method and mobile terminal | |
| CN107516032B (en) | Solve lock control method and Related product | |
| CN108896849B (en) | Wireless charging system fault identification method and device and computer equipment | |
| CN104168372A (en) | Identification method for identifying original battery based on mobile terminal and mobile terminal | |
| CN112434421A (en) | Cable type selection method and device, computer equipment and storage medium | |
| CN102984368A (en) | Mobile terminal for identifying original batteries automatically and identification method of mobile terminal | |
| US20210333332A1 (en) | Test Board, Test System and Test Method for Charging Device | |
| CN105826959A (en) | Charging method, device and mobile terminal | |
| CN106972558B (en) | Charging control method and electronic equipment | |
| CN109714334B (en) | Method, device, processor, circuit and storage medium for transmitting air conditioner data | |
| CN116780691A (en) | Charging control method, device, equipment and storage medium of energy storage power supply | |
| CN107453455B (en) | Charging method and system of mobile terminal | |
| CN116325429A (en) | Wireless charging pad for power tool battery pack | |
| EP4113781A1 (en) | Terminal, terminal charging method, electronic device, and storage 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201225 Termination date: 20210719 |