3 results about "Power line noise" patented technology

The invention relates to a generative power line noise time domain modeling method fusing seasonal trends. The generator converts a random variable into an initial sequence with a low time resolution, and introduces a learnable position code to carry out time sequence learning; decomposing the time sequence characteristics through a season trend module, and dividing the time sequence characteristics into long-term change components and short-term fluctuation for modeling; and then with residual convolution as a core, a multi-stage up-sampling structure is adopted to gradually recover time resolution, and stable fusion of features and structural lightweight are realized. A discriminator adopts a multi-layer one-dimensional convolution structure, and comprehensive judgment on the authenticity of the whole sequence is obtained through small convolution kernel output features and global averaging. Meanwhile, in the training process, gradient penalty and frequency domain consistency limitation are introduced, a discriminator is restrained to meet the smooth continuity condition, and the model robustness is improved. According to the scheme, the problems that an existing model network is huge in structure, high in parameter quantity and difficult to deploy in embedded equipment can be solved.

The invention discloses a broadband carrier communication exception handling method, system and device and a storage medium, and relates to the technical field of power electronics, and the method comprises the steps: obtaining initial data of a target station area in a broadband carrier communication network through at least one pre-configured reading controller; constructing target data based on the initial data, and determining power line noise according to a spectrogram corresponding to the target data; comparing the power line noise with a pre-constructed topological relation graph, and obtaining a noise interference source according to a comparison result; obtaining an interference type corresponding to the noise interference source, and determining a target processing scheme according to the interference type; according to the target processing scheme, processing the noise interference source through the reading controller; according to the method, multi-aspect monitoring of broadband carrier communication can be realized, noise interference sources and types can be quickly positioned and processed, the meter reading exception processing efficiency is improved, and the cost is reduced.

The application discloses a portable full-shielding mobile phone safety box, and belongs to the technical field of electronic product safety protection and wireless electromagnetic regulation and control. The product adopts a three-layer composite sealing shell, a closed metal shielding layer in the three-layer composite sealing shell constitutes a Faraday cage shielding cavity, and is matched with a theftproof locking mechanism and a line electromagnetic isolation type charging assembly. The box body is closed and can block radio frequency signals in and out of the box body in full frequency bands. Night use can completely eliminate privacy leakage, remote wake-up, positioning tracking and health hazards caused by mobile phone signal interaction, can resist NFC theft and external equipment monitoring and detection, and is suitable for secret and special emergency environment stealth protection. The charging circuit is integrated with at least two levels of electromagnetic isolation structures, completely blocks power line noise and radio frequency coupling interference brought by an external power line, realizes pure direct current safe charging in a full-shielding closed environment, and starts the built-in active gain antenna after the box body is opened, amplifies mobile phone communication signals, and improves weak network use experience. The overall structure is simple and easy to mass produce and popularize.