56 results about "DataFlash" patented technology

The invention discloses a frame-rejected secondary response data chain decoding method. The method comprises the following steps of: 1) determining a first response data link frame in video data, andsetting it as a leading edge response data link; 2) detecting, extracting and cutting the leading edge response data chain from the video data; 3) decoding and outputting the leading edge response data chain; 4) replacing the original video data by the remaining video data, and repeating steps 1) to 3) until the decoding and outputting of all the response data link are completed. According to theframe-rejected secondary response data chain decoding method, the complicated logic calculation caused by simultaneous comparison of multiple response data is eliminated by using the pulse amplitude characteristic and the time distribution characteristic of the response data, the logic judgment complexity of the multiple interleaving response decoding is reduced by adopting the loop iterative decoding method, and the front edge response data is cut to eliminate the interference on subsequent response data judgment, and reduce the dependence of the decoding calculation on the response data frame.

A misuse detection electronic control unit in a vehicle network system including a plurality of electronic control units that communicate with one another through buses in accordance with a CAN protocol includes a transceiver unit that performs a reception step of receiving a target data frame and a reference data frame transmitted through the buses, wherein the target data frame is a data frame having a first identifier and wherein the reference data frame is a data frame having a second identifier different from the first identifier and a misuse detection process unit that performs a detection step of performing, as misuse detection for the target data frame, evaluation in accordance with a reception timing of the reference data frame and a reception timing of the target data frame on the basis of a certain rule specifying a reception interval between the reference data frame and the target data frame.

The invention relates to the technical field of AR, and discloses a virtual live broadcast method and system based on smart phone AR augmented reality. According to the scheme, the image data is acquired through the combination of the SceneKit framework and the ARKit framework, wherein the SceneKit framework is used for acquiring real world image data and displaying a virtual 3D model; the ARKit framework is used for being responsible for capture and action interaction of camera events, the collected image data are presented with SCNView as a carrier and transmitted to the data processing layer, and AI beautifying, filter filtering and static image layer superposition processing is carried out; meanwhile, audio data is collected and transmitted to the data processing layer for noise reduction processing; and then AR images are collected, coded and packaged, and then plug flow and transmission are carried out. According to the scheme, AR augmented reality is carried out based on the SceneKit framework and the ARKit framework, the AR effect in the live broadcast result is derived from the stream pushing framework, and live broadcast stream pushing with the AR special effect is realized.

The invention discloses a method for state estimation of UHV flexible direct current transmission system, comprising the following steps: Step 1: extracting all parameter data for evaluating the operating state of UHV flexible direct current transmission system; Step 2: constructing a data frame; Step 3: correcting missing The original parameter data is processed; Step 4: Amplify the training matrix; Step 5: Sampling, generate a specific decision-making path; Step 6: Remove the part that has not reached the convergence state, infer the required predicted value, and estimate the UHV flexible DC transmission system status. The present invention uses the known measurement data in the system to establish a mathematical model for estimating other unknown parameters and system status, and can obtain the system status more accurately according to the evaluation results, and perform power and voltage regulation purposefully and selectively. In the case of missing data of some measurement units, the system status can also be known more accurately, effectively preventing DC outages or equipment damage accidents caused by measurement failures.