WO2023113277A1 - 에너지 저장 시스템 및 에너지 저장 시스템의 동작 방법 - Google Patents
에너지 저장 시스템 및 에너지 저장 시스템의 동작 방법 Download PDFInfo
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- WO2023113277A1 WO2023113277A1 PCT/KR2022/018493 KR2022018493W WO2023113277A1 WO 2023113277 A1 WO2023113277 A1 WO 2023113277A1 KR 2022018493 W KR2022018493 W KR 2022018493W WO 2023113277 A1 WO2023113277 A1 WO 2023113277A1
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- operation data
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- 238000000034 method Methods 0.000 title claims description 32
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
- G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
- G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
- G06F11/1004—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's to protect a block of data words, e.g. CRC or checksum
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- G—PHYSICS
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- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- Embodiments disclosed in this document relate to an energy storage system and a method of operating the energy storage system.
- An energy storage system is a system that stores electrical energy and manages it so that it can be used when needed.
- energy storage systems installed in power plants that drive large-scale energy networks or buildings with high energy consumption are hundreds of to thousands of batteries.
- the battery management system (BMS) included in the energy storage system frequently monitors the state of each battery (e.g., voltage, current, temperature, state of charge, etc. Optionally charge/discharge or control connection with other devices.
- the operational data required for the operation of the energy storage system includes additional information such as battery status information (current, voltage, temperature, state of charge, etc. of the battery cell) collected by sensors, network information for communication between devices, and BMS set values. and is stored in a logging device by the battery management system and the controller controlling the battery management system.
- battery status information current, voltage, temperature, state of charge, etc. of the battery cell
- BMS set values BMS set values
- Such operation data is key information that is the basis for quality assurance services for customers, and the integrity of the data must be maintained.
- the conventional energy storage system has an insufficient level of protection of operation data, so it is easy for a third party to arbitrarily tamper with the data. .
- since most energy storage systems are operated independently, real-time collection of data and storage in servers are limited, so data protection is not easy. There was a problem.
- One object of the embodiments disclosed in this document is to provide an operating method of encrypting and storing data in an efficient manner to prevent falsification of operation data of an energy storage system.
- Another object of the embodiments disclosed in this document is to provide an energy storage system that operates according to the above operating method.
- a battery management system acquires operation data of an energy storage system including essential data and additional data related to a state of a battery, randomly samples the additional data to obtain sampling data, and obtains the essential data. and a BMS controller generating a first encryption code based on the sampling data; and a communication unit transmitting the operation data to which the first encryption code is added to a recording device.
- the first encryption code may include first data indicating an index of the sampling data, and second data generated by encrypting the essential data and the sampling data.
- An energy storage system acquires operation data of an energy storage system including essential data and additional data related to a state of a battery, randomly samples the additional data to obtain sampling data, and obtains the essential data. and a battery management system generating a first encryption code based on the sampling data, adding the first encryption code to the operation data, and transmitting the result to a recording device. and a recording device receiving and storing the operation data to which the first password code is added from the battery management system.
- the recording device generates a second cryptographic code based on the operation data to which the first cryptographic code is added, and adds the second cryptographic code to the operational data so that the memory of the recording device can be stored in
- the second encryption code may be generated based on the first encryption code of the operation data received in the current period and the second encryption code of the operation data received in the previous period.
- the recording device may generate a third encryption code based on the second encryption code added to the operation data of a period immediately before the branch when the operation data stored in the recording device is diverged. there is.
- the third encryption code is the second encryption code added to the operation data of the period immediately before the branch, the identification number of the recording device, and the time at which the operation data started to be stored in the recording device. It can be created based on information.
- the second data constituting the first encryption code, the second encryption code, and the third encryption code may be generated by a Cyclic Redundancy Check (CRC) encryption method.
- CRC Cyclic Redundancy Check
- the essential data includes at least one of current time information, voltage, current, temperature, and state of charge of the battery
- the additional data includes network setting information, Internet protocol information, and battery management. It may include at least one of the set values of the system.
- An operating method of an energy storage system includes obtaining operation data of the energy storage system including essential data and additional data related to a state of a battery; randomly sampling the additional data to obtain sampling data, and generating a first encryption code based on the essential data and the sampling data; and adding the first encryption code to the operational data and transmitting the data to a recording device.
- the method comprises: generating a second encryption code based on the operation data to which the first encryption code is added; And it may further include adding the second password code to the operation data and storing it in a memory of the recording device.
- generating a third encryption code based on the second encryption code added to the operation data of a period immediately before the branch in the recording device can include
- the recording device intercepts the operating data received for each cycle, mixes the order of the data for each cycle, cheats the pattern, or diverges from another recording device. Utilizing the data as a whole can prevent tampering with fraudulent usage patterns.
- FIG. 1 is a block diagram showing the configuration of an energy storage system according to an embodiment.
- FIG. 2 is a block diagram showing the configuration of a battery management system according to an embodiment.
- FIG. 3 is a block diagram showing the configuration of a recording device according to an embodiment.
- FIG. 4 is a flowchart illustrating an operating method of an energy storage system according to an exemplary embodiment.
- FIG. 5 shows operational data to which a first encryption code is added according to an embodiment.
- FIG. 6 is a flowchart illustrating an operating method of an energy storage system according to another embodiment.
- FIG. 7 shows operational data to which a second encryption code is added according to an embodiment.
- FIG. 8 is a flowchart illustrating an operating method of an energy storage system according to another embodiment.
- FIG. 9 shows operational data to which a third encryption code is added according to an embodiment.
- an energy storage system 10 may include a battery module 100 , a battery management system 110 , and a recording device 120 .
- the battery module 100 includes at least one battery cell and is an assembly that is bundled in a certain number and placed in a frame to protect the battery cells from external shock, heat, vibration, and the like, and to manage information.
- a battery cell is a basic unit of a battery configured to charge and discharge electrical energy for use, and is manufactured by putting components such as a cathode, a cathode, a separator, and an electrolyte in a pouch, cylindrical or rectangular case.
- the battery cell may be a lithium ion (Li-ion) battery, a lithium ion polymer (Li-ion polymer) battery, a nickel cadmium (Ni-Cd) battery, a nickel-metal hydride (Ni-MH) battery, or the like. Not limited.
- the battery management system 110 provides information about battery cells included in the battery module 100 to control and manage the battery module 100, for example, voltage, current, temperature, resistance, SOC (State of Charge) of each battery cell. ), SOH (State of Health), etc. are collected. In addition, for efficient operation of the battery, the battery cell may be selectively charged or discharged or the connection with other battery cells may be controlled.
- the battery management system 110 includes essential data collected from the battery module 100 (eg, data related to battery conditions such as current, voltage, temperature, etc.) and other additional data (eg, network information, BMS). Additional data required for system operation, such as setting values, etc.) are acquired at every cycle and transmitted to the recording device 120 .
- the battery management system 110 includes a BMS controller 111 and a communication unit 112 .
- the BMS controller 111 acquires operation data of the energy storage system including essential data and additional data related to the state of the battery, randomly samples the additional data to obtain sampling data, and acquires the essential data and the sampling data. It is possible to generate a first encryption code based on.
- the communication unit 112 may transmit the operation data to which the first password code is added to the recording device 120 .
- the energy storage system 10 of the embodiment is not limited to using a single battery module, and a plurality of battery modules may be used.
- the battery management system 110 receives information from a plurality of slave battery management systems (eg, module battery management systems) that control each battery module and the slave battery management system, thereby providing other devices. or may be configured as a master battery management system (eg, a rack battery management system, a bank battery management system, etc.) that integrally controls the slave battery management system.
- a master battery management system eg, a rack battery management system, a bank battery management system, etc.
- the energy storage system 10 is an integrated controller (not shown) for controlling the operation of the battery management system 110 and/or the recording device 120 according to a user's manipulation or a pre-programmed algorithm. city) may be further included.
- the integrated controller may control the operation of the battery management system 110 according to set values (eg, operation data recording period, network setting, etc.) input through a user interface.
- the integrated controller may be, for example, a Battery System Controller (BSC) generally used in battery control systems.
- BSC Battery System Controller
- the recording device 120 receives and stores operation data of the energy storage system 10 (consisting of essential data related to the state of the battery and remaining additional data) from the battery management system 110 .
- a recording device 120 includes a recording device controller 121 and a memory 122 .
- the recording device controller 121 reads operation data stored in the memory 122 according to a call from an external device (eg, a user terminal, battery management system 110, etc.), processes it according to a command, or sends data to an external device. It can be configured to transmit or display.
- an external device eg, a user terminal, battery management system 110, etc.
- a second encryption code may be generated based on the first encryption code.
- the memory 122 stores operation data in which the second encryption code is generated.
- the memory 122 may be, for example, RAM, ROM, semiconductor memory such as flash memory, various storage media such as magnetic disks and optical disks, and is shown as being located inside the recording device 120, but may also be located outside. there is.
- each component is shown as a single unit in FIG. 1, it is not limited thereto, and two or more units may be combined to operate as one component or perform operations in parallel.
- FIGS. 1 to 3 are referred to components of the energy storage system, the reference numerals used in FIGS. 1 to 3 are written together.
- FIG. 4 is a flowchart illustrating an operating method of an energy storage system according to an exemplary embodiment.
- operation data of the energy storage system 10 is acquired (S410).
- Operational data consists of essential data related to the state of the battery and the remaining additional data.
- essential data includes current time information (time) and voltage (V), current (I), temperature (T), and state of charge (SOC) of each battery cell at the current time, which are directly related to the state of the battery.
- One or more related data may be included.
- the additional data may include one or more data not directly related to the state of the battery, such as network setting information, IP information, and BMS setting values.
- essential data and additional data are terms used only for distinction, and data not listed in the above examples may be further included or excluded.
- the battery management system 110 may acquire essential data through sensors installed in battery cells. Additionally, additional data may be obtained from information input through a user interface or pre-stored in a memory. The battery management system 110 acquires operation data every period (eg, every second), and the data acquisition period may be arbitrarily set.
- a step of generating a first password code (also referred to as “Check Byte”) is performed (S420).
- the first encryption code may be generated based on essential data and additional data.
- Step S430 a step (S430) of adding a first password code to the operation data and transmitting the data to the recording device 120 is performed.
- Step S430 may be performed through the communication unit 112 of the battery management system 110 .
- FIG. 5 shows the structure of the operation data to which the first encryption code generated in step (S420) is added.
- operation data Dn in n cycles includes essential data (Time, battery voltage (V), current (I), temperature (T), state of charge (SOC)) and additional data ( It consists of network setting information (ETC1), IP information (ETC2), BMS setting value (ETC3), ...), and a first encryption code (CAn) is added to ensure intact transmission of operation data (Dn).
- the first encryption code (CAn) includes first data representing an index of sampling data obtained by randomly sampling additional data (2 bytes in size), and the essential data and the sampling data in a designated manner. It may be composed of second data (2 bytes in size) generated by encryption.
- the second data may be generated by CRC 16 or CRC 32 encryption.
- a Cyclic Redundancy Check (CRC) is one of methods for determining a check value for checking whether there is an error in transmitted data when data is transmitted through a network. An error can be detected by calculating a CRC value according to a given data value before transmitting data, appending the CRC value to the data, and calculating the CRC value again with the value of the received data after data transmission is finished and comparing the two values.
- CRC 16 applies a 16-bit polynomial to a data block
- CRC 32 applies a 32-bit polynomial. Administrators can adopt the CRC 32 encryption method for more accurate error detection.
- the above steps (S410 to S430) are repeatedly performed every cycle.
- the recording device 120 may check whether the operation data is not tampered with during transmission by calculating the CRC value again using the first encryption code (CAn). If the CRC values do not match (that is, when manipulation of the operational data is expected), the manager may be notified without storing the corresponding operational data in the memory 122 .
- CAn first encryption code
- FIG. 6 is a flowchart illustrating an operating method of an energy storage system according to another embodiment. Since steps S610 to S630 of FIG. 6 performed by the battery management system 110 are the same as steps S410 to S430 of FIG. 4 , overlapping descriptions will be omitted.
- the controller 121 of the recording device 120 in order to ensure continuity of the operation data received every cycle, based on the operation data to which the first encryption code is added, second password A step (S640) of generating a code (also referred to as “Chain Byte”) is performed. This is to prevent a third party from arbitrarily mixing the order of operation data to deceive the usage pattern.
- the second encryption code (CBn) of the operation data received in the n period, the first encryption code (CAn) and the second encryption code (CBn-1) of the operation data received in the previous cycle are designated It may be generated by encrypting with a method (eg, CRC 16 or CRC 32 encryption method).
- FIG. 7 shows operational data to which a second encryption code is added according to an embodiment.
- a first encryption code CA1 is added to the operation data D1 received by the recording device 120 in one cycle. Since the second encryption code CB1 of the first cycle cannot be generated using data of the previous cycle, it may be preset to a specific value.
- a first encryption code CA2 is added to the operation data D2 received in cycle 2, and the recording device 120 records the first encryption code CA2 and the second encryption code of operation data D1 in cycle 1.
- (CB1) is encrypted in a designated manner to generate a second encryption code (CB2).
- the second encryption code (CB3) of the 3-cycle operation data (D3) is based on the first encryption code (DA3) and the second encryption code (CB2) of the previous cycle (2 cycles) operation data (D2).
- the recording device 120 may add a second encryption code (Chain Byte) to the operation data every cycle to ensure the continuity of data in the form of a block chain. If the value does not match by CRC conversion of the second encryption code again (ie, when the order of the operational data chart is expected to be tampered with), the manager is notified without storing the corresponding operational data in the memory 122. Can be.
- a second encryption code Choin Byte
- FIG. 8 is a flowchart illustrating an operating method of an energy storage system according to another embodiment. Since the steps S810 to S850 of FIG. 8 performed by the battery management system 110 and the recording device 120 are the same as the steps S610 to S650 of FIG. 6 , overlapping descriptions will be omitted.
- the recording device 120 performs a step (S860) of determining whether the operational data stored in the recording device 120 is branched, and if data divergence occurs (S860 ⁇ Yes) , Generating a third encryption code based on the second encryption code added to the operation data of the period immediately before the branch (S870) is performed.
- the third encryption code (also referred to as “Device Byte”) is a code for identifying a series of operational data prior to branching and preventing the series of operational data from being tampered with after branching. For example, in order to prevent a third party from deceiving usage patterns by recycling all data from other recording devices, an encryption code is added to the operational data set prior to divergence.
- the third cryptographic code of the operational data is the second cryptographic code added to the operational data of the period immediately before the branch, the identification number (serial number) of the recording device 120, and the series of operational data are recorded. It may be generated based on the information (Unixtime) of the start time stored in the memory 122 of the device 120.
- the third encryption code may be generated by encrypting the information in a designated method (eg, CRC 16 or CRC 32).
- the recording device 120 receives and stores operation data (D1, D2, ..., Dn) from cycle 1 to cycle n, and a first password code and a second password code are added to each operation data. has been When a branch occurs after storing the operation data Dn up to cycle n (occurrence of the first branch), the recording device 120 responds to the first branch by using the second encryption code CBn of the operation data Dn.
- a third encryption code (CC1) is generated and added to the last operational data (Dn) immediately before branching.
- the third encryption code may be generated by encrypting the second encryption code CBn, the identification number of the recording device 120 currently being recorded, and storage start time information (ie, when D1 is stored).
- the recording device 120 After the first branch, the recording device 120 cycles n+1, cycles n+2, . . . , Receives operation data (Dn+1, Dn+2, ..., Dm) corresponding to m cycle.
- the recording device 120 uses the second cryptographic code CBm of the operation data Dm to obtain a third cryptographic code corresponding to the second branch ( CC2) is created, and it is added to the last operation data (Dm) just before the branch.
- the third encryption code may be generated by encrypting the second encryption code CBm, the identification number of the recording device 120 currently being recorded, and storage start time information (ie, when Dn+1 is stored).
- step S810 when data branching does not occur (S860 ⁇ No), the process of obtaining operation data of the next cycle and storing them in the recording device 120 is repeated again in step S810.
- the operating method of the energy storage system may be implemented as an application or implemented in the form of program instructions that can be executed through various computer components and recorded on a computer-readable recording medium.
- the computer readable recording medium may include program instructions, data files, data structures, etc. alone or in combination.
- the operating method described above it is possible to prevent arbitrary modification of the data by a third party by encrypting the operation data of the energy storage system.
- Conventional energy storage systems have a problem in that data is easily tampered with due to an insufficient level of protection of operation data, and excessive computing resources are consumed when the entire data is encrypted and stored to prevent tampering.
- the recording device instead of encrypting the entire operation data, by adding an encryption code generated using a pattern of some data, the recording device intercepts the operation data received for each cycle or the data for each cycle. It is possible to efficiently prevent a manipulation act of cheating a pattern by mixing the order or by utilizing the entire data branched from another recording device to cheat a usage pattern.
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Abstract
Description
Claims (18)
- 배터리의 상태와 관련된 필수 데이터 및 부가 데이터를 포함하는 에너지 저장 시스템의 운용 데이터를 획득하고, 상기 부가 데이터를 랜덤하게 샘플링하여 샘플링 데이터를 획득하고, 상기 필수 데이터와 상기 샘플링 데이터에 기초하여 제1 암호 코드를 생성하는 BMS 컨트롤러; 및상기 제1 암호 코드가 추가된 상기 운용 데이터를 기록 장치에 전송하는 통신부를 포함하는, 배터리 관리 시스템.
- 청구항 1에 있어서,상기 제1 암호 코드는, 상기 샘플링 데이터의 지표를 나타내는 제1 데이터, 및 상기 필수 데이터와 상기 샘플링 데이터를 암호화하여 생성된 제2 데이터를 포함하는, 배터리 관리 시스템.
- 배터리의 상태와 관련된 필수 데이터 및 부가 데이터를 포함하는 에너지 저장 시스템의 운용 데이터를 획득하고, 상기 부가 데이터를 랜덤하게 샘플링하여 샘플링 데이터를 획득하고, 상기 필수 데이터와 상기 샘플링 데이터에 기초하여 제1 암호 코드를 생성하는 BMS 컨트롤러, 및 상기 제1 암호 코드가 추가된 상기 운용 데이터를 기록 장치에 전송하는 통신부를 포함하는 배터리 관리 시스템; 및상기 배터리 관리 시스템으로부터 상기 제1 암호 코드가 추가된 상기 운용 데이터를 수신하여 저장하는 기록 장치를 포함하는, 에너지 저장 시스템.
- 청구항 3에 있어서,상기 제1 암호 코드는, 상기 샘플링 데이터의 지표를 나타내는 제1 데이터, 및 상기 필수 데이터와 상기 샘플링 데이터를 암호화하여 생성된 제2 데이터를 포함하는, 에너지 저장 시스템.
- 청구항 4에 있어서,상기 기록 장치는, 상기 제1 암호 코드가 추가된 상기 운용 데이터에 기초하여 제2 암호 코드를 생성하는 기록 장치 컨트롤러, 및 상기 운용 데이터에 상기 제2 암호 코드를 추가하여 저장하는 메모리를 포함하는, 에너지 저장 시스템.
- 청구항 5에 있어서,상기 제2 암호 코드는, 현재 주기에서 수신된 운용 데이터의 제1 암호 코드와 이전 주기에서 수신된 운용 데이터의 제2 암호 코드에 기초하여 생성되는, 에너지 저장 시스템.
- 청구항 5에 있어서,상기 기록 장치는, 상기 기록 장치에 저장하던 운용 데이터가 분기되는 경우, 분기 직전 주기의 상기 운용 데이터에 추가된 상기 제2 암호 코드에 기초하여 제3 암호 코드를 생성하는, 에너지 저장 시스템.
- 청구항 7에 있어서,상기 제3 암호 코드는, 분기 직전 주기의 상기 운용 데이터에 추가된 상기 제2 암호 코드, 상기 기록 장치의 식별 번호, 및 상기 운용 데이터가 상기 기록 장치에 저장되기 시작한 시간의 정보에 기초하여 생성되는, 에너지 저장 시스템.
- 청구항 8에 있어서,상기 제1 암호 코드를 구성하는 상기 제2 데이터, 상기 제2 암호 코드, 및 상기 제3 암호 코드는 CRC (Cyclic Redundancy Check) 암호화 방식에 의해 생성되는, 에너지 저장 시스템.
- 청구항 3에 있어서,상기 필수 데이터는, 현재 시간 정보, 상기 배터리의 전압, 전류, 온도, 및 충전 상태 중 적어도 하나를 포함하고,상기 부가 데이터는, 네트워크 설정 정보, 인터넷 프로토콜 정보, 및 배터리 관리 시스템의 설정값 중 적어도 하나를 포함하는, 에너지 저장 시스템.
- 에너지 저장 시스템의 동작 방법에 있어서,배터리의 상태와 관련된 필수 데이터 및 부가 데이터를 포함하는 상기 에너지 저장 시스템의 운용 데이터를 획득하는 단계;상기 부가 데이터를 랜덤하게 샘플링하여 샘플링 데이터를 획득하고, 상기 필수 데이터와 상기 샘플링 데이터에 기초하여 제1 암호 코드를 생성하는 단계; 및상기 운용 데이터에 상기 제1 암호 코드를 추가하여 기록 장치에 전송하는 단계를 포함하는, 에너지 저장 시스템의 동작 방법.
- 청구항 11에 있어서,상기 제1 암호 코드는, 상기 샘플링 데이터의 지표를 나타내는 제1 데이터, 및 상기 필수 데이터와 상기 샘플링 데이터를 암호화하여 생성된 제2 데이터를 포함하는, 에너지 저장 시스템의 동작 방법.
- 청구항 12에 있어서,상기 제1 암호 코드가 추가된 상기 운용 데이터에 기초하여 제2 암호 코드를 생성하는 단계; 및상기 운용 데이터에 상기 제2 암호 코드를 추가하여 상기 기록 장치의 메모리에 저장하는 단계를 더 포함하는, 에너지 저장 시스템의 동작 방법.
- 청구항 13에 있어서,상기 제2 암호 코드는, 현재 주기에서 수신된 운용 데이터의 제1 암호 코드와 이전 주기에서 수신된 운용 데이터의 제2 암호 코드에 기초하여 생성되는, 에너지 저장 시스템의 동작 방법.
- 청구항 13에 있어서,상기 메모리에 저장하던 운용 데이터가 분기되는 경우, 상기 기록 장치에서 분기 직전 주기의 상기 운용 데이터에 추가된 상기 제2 암호 코드에 기초하여 제3 암호 코드를 생성하는 단계를 더 포함하는, 에너지 저장 시스템의 동작 방법.
- 청구항 15에 있어서,상기 제3 암호 코드는, 분기 직전 주기의 상기 운용 데이터에 추가된 상기 제2 암호 코드, 상기 기록 장치의 식별 번호, 및 상기 운용 데이터가 상기 기록 장치의 메모리에 저장되기 시작한 시간의 정보에 기초하여 생성되는, 에너지 저장 시스템의 동작 방법.
- 청구항 16에 있어서,상기 제1 암호 코드를 구성하는 상기 제2 데이터, 상기 제2 암호 코드, 및 상기 제3 암호 코드는 CRC 16 또는 CRC 32 암호화 방식에 의해 생성되는, 에너지 저장 시스템의 동작 방법.
- 청구항 11에 있어서,상기 필수 데이터는, 현재 시간 정보, 상기 배터리의 전압, 전류, 온도, 및 충전 상태 중 적어도 하나를 포함하고,상기 부가 데이터는, 네트워크 설정 정보, 인터넷 프로토콜 정보, 및 배터리 관리 시스템의 설정값 중 적어도 하나를 포함하는, 에너지 저장 시스템의 동작 방법.
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