4results about How to "Efficient perception" patented technology

The invention discloses a self-powered flexible sensor and a preparation method thereof, and belongs to the field of electronic skin, man-machine interaction, flexible electronic devices and sensors. The invention relates to a cellulose acetate-based ionic gel self-energized flexible sensor which is prepared from cellulose acetate, ionic liquid, a polymer monomer, a cross-linking agent and an initiator and has good mechanical property and antibacterial property, the cellulose acetate enhances the mechanical property of the gel through non-covalent crosslinking, and the ionic liquid plays a conductive role. The flexible sensor has good conductivity, high sensitivity and stability, and can be stretched, twisted and bent. Meanwhile, the high transparency and excellent biocompatibility can be realized, so that the electronic skin can be used as the electronic skin for multifunctional perception and integrated application. The material is environment-friendly, the preparation method is simple, the operability is high, the application field is wide, and the prospect is wide.

The invention discloses a mantis shrimp eye imitating polarization flexible navigation system, and belongs to the technical field of underwater vehicle navigation. The system comprises a horizontal rotating base assembly, a support assembly, a spherical polarization sensing assembly and an eyestalk-imitating manifold protective cover. An underwater vehicle butt-joint base plate of the horizontal rotating base assembly is fixedly connected with the surface of the underwater vehicle, and a driving mechanism is integrated in the horizontal rotating base assembly; a vertical shaft of a Y-shaped bracket of the bracket assembly penetrates through a mounting hole in the upper surface of the horizontal rotating base assembly and is axially limited; bearing seats are arranged at the tail ends of two horizontal arms at the top of the Y-shaped bracket, and the bearing seats are matched with the spherical polarization sensing component to form rotatable mechanical connection, so that the spherical polarization sensing component is endowed with pitching motion capability in a vertical plane; the whole eyestalk-like manifold protective cover wraps the support assembly and the spherical polarization sensing assembly and is fixedly connected with the horizontal rotating base assembly. According to the invention, efficient sensing and rapid tracking of the underwater polarized light field are realized.

This invention discloses a multi-task teacher-student network collaborative training method for underwater scattering environments, aimed at improving the scene perception and understanding capabilities of autonomous underwater vehicles. The invention trains high-performance teacher models using datasets with single depth labels and single semantic labels, respectively, and designs a lightweight multi-task student model framework. Through feature extraction and fusion, the parameter size of the model is reduced and inference speed is improved. Through the design of the loss function in the knowledge distillation process, it is ensured that the student model can inherit the depth perception and semantic understanding capabilities of the teacher model. This invention can be widely applied in fields such as marine resource exploration, underwater infrastructure maintenance, and environmental monitoring, providing accurate environmental understanding and target recognition capabilities for underwater work, and has significant application prospects and economic benefits.

The invention relates to the technical field of blind person intelligent navigation, and particularly discloses a blind person intelligent navigation system based on image understanding, which comprises an intelligent navigation suit and an intelligent blind person walking stick, the intelligent navigation suit comprises a protective suit unit, a first sensor unit, a camera unit, a first data transmitter unit and an earphone unit, the blind person walking stick comprises an intelligent walking stick unit, a second sensor unit and a second data transmitter unit, and the intelligent walking stick unit obtains surrounding environment information through the second sensor unit arranged in the intelligent walking stick unit; the obstacle avoidance navigation system of the intelligent navigation suit and the intelligent blind person walking stick provides the functions of sensing the surrounding environment in real time and giving out warning for the blind person, the blind person is helped to be prevented from colliding with obstacles, the navigation systems are arranged in the intelligent navigation suit and the intelligent blind person walking stick, route planning and navigation guidance are provided, and the navigation effect is good. And the system has the functions of article identification, audio prompt, data recording and the like.