CN113667059A - 一种用于手势识别的离子凝胶压力传感器件的制备方法 - Google Patents

一种用于手势识别的离子凝胶压力传感器件的制备方法 Download PDF

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CN113667059A
CN113667059A CN202111053675.9A CN202111053675A CN113667059A CN 113667059 A CN113667059 A CN 113667059A CN 202111053675 A CN202111053675 A CN 202111053675A CN 113667059 A CN113667059 A CN 113667059A
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李秋瑾
董裕
巩继贤
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Tianjin Polytechnic University
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Abstract

本发明涉及一种用于手势识别的离子凝胶压力传感器件的制备方法,属于复合材料领域。在当前时代背景下,人们对柔性电子设备这种可以改变的便携性技术期望和需求日益增加,柔性电子设备也得到了迅猛的发展。本发明所要解决的问题在于针对现有手势识别系统复杂计算方法,成本过高的不足,提供了一种用于手势识别的离子凝胶压力传感器件的制备方法。本发明采用紫外聚合的方法制备得到线状离子凝胶,然后将其集成在手套上,通过监测多个手指关节运动的压阻响应信号,简单快速的对常见手势进行表达和识别,实现手势信号的数字化、模式化。

Description

一种用于手势识别的离子凝胶压力传感器件的制备方法
技术领域
本发明涉及一种用于手势识别的离子凝胶压力传感器件的制备方法,属于复合材料领域。
背景技术
在当前时代背景下,人们对柔性电子设备这种可以改变的便携性技术期望和需求日益增加,柔性电子设备也得到了迅猛的发展。柔性压力传感器能够将外部的机械形变转化为易于接收的电信号,从而实现信号的数字化、模式化。离子凝胶由于具有高柔性、高导电性、形状可变等特点,被视为潜在的电解质材料。相比于传统的薄膜材料,线状材料体积较小,更容易将其集成在手套上,从而实现不同手势的识别。这种线状离子凝胶基传感器被认为是一种实用的可穿戴传感器,在人机交互、医疗康复治疗等领域具有广泛的研究前景。
发明内容
本发明所要解决的问题在于针对现有手势识别系统复杂计算方法,成本过高的不足,提供了一种用于手势识别的离子凝胶压力传感器件的制备方法。本发明采用紫外聚合的方法制备得到线状离子凝胶,然后将其集成在手套上,通过监测多个手指关节运动的压阻响应信号,简单快速的对常见手势进行表达和识别,实现手势信号的数字化、模式化。
为实现上述目的,本发明采用的技术方案如下:
(1)前驱体溶液的制备:依次加入正硅酸四乙酯(TEOS)、1-丁基-3-甲基咪唑四氟硼酸盐([Bmim][BF4])、N,N’-亚甲基丙烯酰胺(MBA)、N,N-二甲基丙烯酰胺、酮戊二酸和盐酸溶液,在氮气通入的条件下,磁力搅拌一定时间得到混合均匀的离子溶液,将此离子溶液避光放置在恒定温度的烘箱中持续加热一段时间,得到前驱体溶液;
(2)线状离子凝胶的制备:将上述步骤(1)制得的前驱体溶液注入特定形状的模具中,在烘箱中放置一段时间,然后用一定强度的紫外光照射使其充分聚合。最后,通过一段时间的干燥得到线状离子凝胶;
(3)线状离子凝胶基传感器的制备:取5根上述步骤(2)中的线状离子凝胶,将其分别贴于手指的关节部位,采用一定的连接方式制得基于线状离子凝胶的智能手套。
作为优选,步骤(1)中正硅酸四乙酯(TEOS)的用量为0.1-1g,1-丁基-3甲基-咪唑四氟硼酸盐的用量为5-10g,N,N’-亚甲基丙烯酰胺(MBA)的用量为1-2g,N,N-二甲基丙烯酰胺的用量为0.4%MBA,酮戊二酸用量为1-3mg,盐酸溶液的浓度为1-20mmol/L,用量为0.1-1mL。氮气通入时间为10-30min,磁力搅拌时间为1-2h,恒定烘箱温度条件为10-60℃,加热时间为1-30h;
作为优选,步骤(2)中模具的材质为硅胶软管,尺寸为,内径1-10mm,外径1-20mm,长度1-10cm,注入前驱体溶液的用量为1-10mL,烘箱放置时间为1-60min,紫外光光源强度为75%,照射时间为1-30min。离子凝胶的干燥方式为真空干燥,干燥温度为10-60℃,干燥时间为1-30h;
作为优选,步骤(3)中离子凝胶的连接方式为并联。
由于采用上述技术方案,具有以下有益效果:
(1)本发明以离子凝胶为基本材料,离子凝胶是由连续固态相的高分子聚合物和流动相的离子液体这两部分组成。离子凝胶既具有液态电解质的难挥发、热稳定性好、导电性良好等等的优异性能,又具备固相基体的优异机械性能和结构可控的特点;
(2)本发明制备方法简单,制作成本低,绿色环保;
(3)基于线状离子凝胶的智能手套能够采集不同的手势信号,快速转换成特定的压阻信号,具有响应快速、便携式等优点;
(4)本发明制备的线状离子凝胶基传感器在手势识别、医疗康复治疗等领域表现出广阔的应用前景。
附图说明
以下附图仅旨在于对本发明做示意性说明及解释,并不限于本发明的范围。其中:
图1:为本发明中实施例1的结果图。
图2:为本发明中实施例2的结果图。
图3:为本发明中实施例3的结果图。
具体实施方式
下面结合附图与具体的实施方案叙述本发明。除非特别说明,本发明中所用的技术手段均为本领域技术人员所公知的方法。另外,实施方案应理解为说明性的,而非限制本发明的范围,本发明的实质和范围仅由权利要求书所限定。对于本领域技术人员而言,在不背离本发明实质和范围的前提下,对这些实施方案中的物料成分和用量进行的各种改变或改动也属于本发明的保护范围。
实施例1:选用特定的模具,采用紫外聚合的方法制得线状离子凝胶。如图1所示,前驱体溶液在紫外灯照射下完全固化,该线状离子凝胶具有高透明度。
实施例2:将所制得的线状离子凝胶集成在手套上,通过导线连接,制得智能手套。如图2所示,将线状离子凝胶贴于手指关节处,制得智能手套,能够用于手部信号监测。
实施例3:采用此离子凝胶基智能手套对常见手势进行信号采集和识别。如图3所示,该传感器可以通过监测多个手指的组合运动,实现常见手势的识别。

Claims (4)

1.一种用于手势识别的离子凝胶压力传感器件的制备方法,包括以下步骤:
(1)前驱体溶液的制备:依次加入正硅酸四乙酯(TEOS)、1-丁基-3-甲基咪唑四氟硼酸盐([Bmim][BF4])、N,N’-亚甲基丙烯酰胺(MBA)、N,N-二甲基丙烯酰胺、酮戊二酸和盐酸溶液,在氮气通入的条件下,磁力搅拌一定时间得到混合均匀的离子溶液,将此离子溶液避光放置在恒定温度的烘箱中持续加热一段时间,得到前驱体溶液;
(2)线状离子凝胶的制备:将上述步骤(1)制得的前驱体溶液注入特定形状的模具中,在烘箱中放置一段时间,然后用一定强度的紫外光照射使其充分聚合。最后,通过一段时间的干燥得到线状离子凝胶;
(3)线状离子凝胶基传感器的制备:取5根上述步骤(2)中的线状离子凝胶,将其分别贴于手指的关节部位,采用一定的连接方式制得基于线状离子凝胶的智能手套。
2.根据权利要求1所述一种用于手势识别的离子凝胶压力传感器件的制备方法,其特征在于,上述步骤(1)中正硅酸四乙酯(TEOS)的用量为0.1-1g,1-丁基-3甲基-咪唑四氟硼酸盐的用量为5-10g,N,N’-亚甲基丙烯酰胺(MBA)的用量为1-2g,N,N-二甲基丙烯酰胺的用量为0.4%MBA,酮戊二酸用量为1-3mg,盐酸溶液的浓度为1-20mmol/L,用量为0.1-1mL,氮气通入时间为10-30min,磁力搅拌时间为1-2h,恒定烘箱温度条件为10-60℃,加热时间为1-30h。
3.根据权利要求1所述一种用于手势识别的离子凝胶压力传感器件的制备方法,其特征在于,上述步骤(2)中模具的材质为硅胶软管,尺寸为,内径1-10mm,外径1-20mm,长度1-10cm,注入前驱体溶液的用量为1-10mL,烘箱放置时间为1-60min,紫外光光源强度为75%,照射时间为1-30min,干燥方式为真空干燥,干燥温度为10-60℃,干燥时间为1-30h。
4.根据权利要求1所述一种用于手势识别的离子凝胶压力传感器件的制备方法,其特征在于,上述步骤(3)中离子凝胶的连接方式为并联。
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