2results about How to "Realize accurate judgment" patented technology

The invention relates to a multi-mode user emotion recognition method, device and equipment and a medium, the method is applied to sound equipment, and the method comprises the steps that physiological data, voice data and image data of a target user are acquired; extracting physiological features from the physiological data; extracting voice features and semantic features from the voice data; extracting facial features from the image data; and determining the emotion of the target user according to the physiological features, the voice features, the semantic features and the facial features. Therefore, according to the technical scheme of the invention, the accurate judgment of the emotion of the target user is realized by integrating the four types of modal data of the physiological features, the voice features, the semantic features and the facial features. The four types of features respectively map the emotional state of the user from four dimensions of physiological reaction, acoustic expression, semantic connotation and visual expression to form a multi-dimensional complementary emotion recognition system. The mechanism can recommend appropriate music content to the user, the auditory demands of the user under different emotions are met, and the use experience of the user is remarkably improved.

This disclosure provides a method and system for evaluating the operational status of electricity meters in a distribution area based on multi-node voltage differences. It belongs to the field of online status monitoring technology for electricity meters. The scheme constructs a model based on information from all electricity meters and line nodes in the distribution area. It pre-collects the output voltage and current signals of all electricity meters during normal operation, establishes a temperature calculation model function based on the conductor thermal balance equation, and uses an iterative method to determine the conductor temperature, thereby determining the conductor resistivity. After measuring the line length, it establishes the line resistance equation; after establishing the voltage equation at the nodes, it obtains the voltage difference state characteristic quantity; it establishes an offline state characteristic quantity dataset of voltage differences for all nodes in the entire distribution area; and it determines the operational status of the electricity meters by comparing the offline and real-time state characteristic quantity datasets. This invention fully utilizes the node voltage difference information of different lines in the distribution area to establish a characteristic quantity model and monitor the operational status of electricity meters in real time, effectively ensuring the accuracy and reliability of electricity metering in the power system.