Abstract: The present disclosure provides a method for multimodal emotion classification based on modal space assimilation and contrastive learning. The present disclosure introduces the concept of assimilation. A guidance vector composed of complementary information between modalities is utilized to guide each modality to simultaneously approach a solution space. This operation not only further improves the efficiency of searching for the solution space but also renders heterogeneous spaces of three modalities isomorphic. In a process of making spaces isomorphic, contributions of a plurality of modalities to a final solution space can be effectively balanced to a certain extent. When guiding each modality, this strategy enables a model to be more concerned about emotion features, thereby reducing intra-modal redundancy. Thus, the difficulty of establishing a multimodal representation is reduced.

Abstract: A system is provided that includes a security system that protects a secured area, a passive infrared (PIR) detector of the security system that detects intruders within the secured area, a pyroelectric element carried by the PIR detector, the pyroelectric element being tilted downwards towards a floor within the secured area to receive and detect a predominant portion of energy from an area extending outwards from the PIR detector and directly in front of the PIR detector and a relatively small portion of energy from a floor area directly below the PIR detector, and a pivoting door having first and second positions mounted below and directly adjacent the pyroelectric element, the door pivoting upwards to the first position where the relatively small portion of energy is blocked and pivoting downwards where the relatively small portion of energy is transmitted onto the pyroelectric element.

Abstract: A system including a security system that protects a secure geographic area and a passive infrared (PIR) detector of the security system that detects intruders within the secured area, a pyroelectric element carried by the PIR detector, the pyroelectric element being tilted downwards towards a floor within the secured area to receive and detect a predominant portion of energy from an area extending outwards PIR detector and directly in front of the PIR detector and a relatively small portion of energy from a floor area directly below the PIR detector and a pivoting door having a first and second positions mounted below and directly adjacent the pyroelectric element, the door pivoting upwards to a first position where the relatively small portion of energy is blocked and pivoting downwards where the relatively small amount of energy is transmitted onto the pyroelectric element.