针对复杂应用环境中近红外单目视觉位姿测量系统偏离预置合作目标对象后，无法完成位姿测量的特殊情况，提出一种以合作目标周边随型粗糙面图像为测量对象的单目视觉测量方法，以及图像受损后的动态自愈方法。通过将实时获取的随型粗糙面图像特征与预存基准图像特征进行匹配计算，完成特殊情况下的应急测量。同时，为减少随型粗糙面图像污染或受损后对位姿测量精度的影响，实时计算污染或受损程度并动态自愈基准图像特征。实验结果表明，以随型粗糙面为对象的位姿测量精度稍低于合作目标对象，但能够满足特殊情况下的应急使用需求，提高了测量系统的鲁棒性；当随型粗糙面图像污染或受损达到70%时，采用自愈处理与未做自愈处理相比，方位角测量误差减少72%以上，验证了基准图像自愈方法的有效性。

Gallium oxide (Ga₂O₃) based flexible heterojunction type deep ultraviolet (UV) photodetectors show excellent solar-blind photoelectric performance, even when not powered, which makes them ideal for use in intelligent wearable devices. However, traditional flexible photodetectors are prone to damage during use due to poor toughness, which reduces the service life of these devices. Self-healing hydrogels have been demonstrated to have the ability to repair damage and their combination with Ga₂O₃ could potentially improve the lifetime of the flexible photodetectors while maintaining their performance. Herein, a novel self-healing and self-powered flexible photodetector has been constructed onto the hydrogel substrate, which exhibits an excellent responsivity of 0.24 mA/W under 254 nm UV light at zero bias due to the built-in electric field originating from the PEDOT: PSS/Ga₂O₃ heterojunction. The self-healing of the Ga₂O₃ based photodetector was enabled by the reversible property of the synthesis of agarose and polyvinyl alcohol double network, which allows the photodetector to recover its original configuration and function after damage. After self-healing, the photocurrent of the photodetector decreases from 1.23 to 1.21 μA, while the dark current rises from 0.95 to 0.97 μA, with a barely unchanged of photoresponse speed. Such a remarkable recovery capability and the photodetector’s superior photoelectric performance not only significantly enhance a device lifespan but also present new possibilities to develop wearable and intelligent electronics in the future.

聚氨酯材料具有优异的力学性能，而发光自愈合聚氨酯在裂缝自诊断和修复等领域具有广阔的应用前景。本文将双（2-羟乙基）二硫化物（HEDS）和1-（4-羟基苯基）-1，2，2-三苯乙烯（TPE-OH）通过化学键键接到聚氨酯体系中，制备了一种具有光致发光性质的自愈合聚氨酯（PUDS），采用傅里叶红外光谱对其化学结构进行了表征，通过X射线衍射仪、万能拉力试验机、荧光分光光度计等方法详细研究了材料的聚集态结构、力学性质、自愈合性能以及光致发光性质。实验结果表明，PUDS具有优异的光致发光性质，其自愈合性能及力学性能与动态二硫键及硬段含量有关。随着动态二硫键含量的增加，材料的自愈合性能逐渐增强，但力学性能逐渐减弱；随着硬段含量的增加，其自愈合性能逐渐减弱，但力学性能逐渐增强。因此，PUDS的力学性能和自愈合性能可通过改变动态二硫键及硬段的含量来调节。在工作中，动态二硫键含量为6.9%（wt）时，样品具有最佳的自愈合性能、力学性能以及光致发光性质。

Ionic gels can be potentially used in wearable devices owing to their high humidity resistance and non-volatility. However, the applicability of existing ionic gel pressure sensors is limited by their low sensitivity. Therefore, it is very important to develop an ionic gel pressure sensor with high sensitivity and a wide pressure detection range without sacrificing mechanical stretchability and self-healing ability. Herein, we report an effective strategy for developing pressure sensors based on ionic gel composites consisting of high-molecular-weight polymers, ionic liquids, and Au nanoparticles. The resulting capacitive pressure sensors exhibit high pressure sensitivity, fast response, and excellent self-healing properties. The sensors composed of highly hydrophobic polymers and ionic liquids can be used to track underwater movements, demonstrating broad application prospects in human motion state monitoring and underwater mechanical operations.Ionic gels can be potentially used in wearable devices owing to their high humidity resistance and non-volatility. However, the applicability of existing ionic gel pressure sensors is limited by their low sensitivity. Therefore, it is very important to develop an ionic gel pressure sensor with high sensitivity and a wide pressure detection range without sacrificing mechanical stretchability and self-healing ability. Herein, we report an effective strategy for developing pressure sensors based on ionic gel composites consisting of high-molecular-weight polymers, ionic liquids, and Au nanoparticles. The resulting capacitive pressure sensors exhibit high pressure sensitivity, fast response, and excellent self-healing properties. The sensors composed of highly hydrophobic polymers and ionic liquids can be used to track underwater movements, demonstrating broad application prospects in human motion state monitoring and underwater mechanical operations.