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138 results about "Logical process" patented technology

Logical Process Modeling. Logical Process Modeling is the representation of a business process, detailing all the activities in the process from gathering the initial data to reaching the desired outcome.

Remote inversion method of internal action logic of protection device

The invention provides a realization method in which intermediate node information correlated to an internal action logic of a relay protection device is uploaded and a visual logic diagram is combined to invert a protection process of the internal logic when there is a fault at a power grid. The provided method can be applied to a power grid fault information system. And the method comprises the following steps that: when there is a fault at a power grid, internal logic operation information of a relay protection device is processed to generate an intermediate node file that can describe the fault in detail; according to an IEC61850-8-1 protocol, the relay protection device uploads the intermediate node file and a fault wave-recording COMTRADE file to a remote fault information master station; and a visual application module loads the intermediate node file, the protection logic diagram file and the COMTRADE fault wave-recording file to demonstrate a protection logic operation situation in the whole fault process. According to the invention, a visual observation means is provided for inversion of an accident in a power system; and a rapid, accurate, and high efficient informational way is provided for accident localization and a fault analysis; therefore, an action process of a relay protection device is hyalinized and the visibility is realized.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER +1

On-chip power supply network verification method for side channel attack

ActiveCN106817215AIntuitive and usable attack defense capability evaluation resultsLow costEncryption apparatus with shift registers/memoriesPlaintextValidation methods
The invention discloses an on-chip power supply network verification method for a side channel attack. The method comprises: logical synthesis and physical design processing is carried out on a register transmission level netlist file of a chip to obtain a transistor level netlist file; according to the obtained transistor level netlist file, a circuit model including a power supply network and a load is established; according to a generated plaintext-ciphertext data pair and a corresponding secret key, a logic process for encryption operation execution on the chip is simulated to obtain a current waveform file of the load; on the basis of the circuit model and the current waveform file of the load, a physical process for encryption operation execution on the chip is simulated to obtain a power consumption curve of the chip; according to the obtained power consumption curve, a side channel attack is carried out on the chip to obtain a guess secret key of the attack; and on the basis of the obtained guess secret key, a side channel attack result is analyzed and an anti-side channel attack capability of the power supply network is verified. The method has advantages of low cost, high accuracy, and reduced design verification period.
Owner:TSINGHUA UNIV
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