排序方式: 共有35条查询结果,搜索用时 15 毫秒
1.
2.
基于特征的回转类零件CAD/CAPP集成系统信息描述 总被引:1,自引:0,他引:1
提出了一种基于特征的回转类零件CAD/GAPP集成系统的零件信息描述方法。系统以AutoCAD2000为开发平台,针对回转类零件的结构及加工特点,研究了通过分层信息描述,建立基于设计/制造特征的零件信息模型的方法,实现了回转类零件CAD/CAPP系统的信息集成。 相似文献
3.
基于深度残差网络和GRU的SqueezeNet模型的交通路标识别 总被引:1,自引:0,他引:1
Existing traffic road sign recognition methods are all based on convolutional neural networks. As the number of the model network layers increases, the recognition accuracy will also be improved, but there are still some problems such as the reduction of efficiency and the increase of the number of parameters. Therefore, an improved SqueezeNet model combining deep residual network with GRU neural network (SqueezeNet IR GRU) is proposed. In order to enhance the learning efficiency, ELU function is used as the activation function. To avoid the disappearance of gradients when the network layer is too deep, a deep residual network is introduced to guarantee the stability of the model, GRU neural network that can memorize the important past features is utilized. Experiments were performed on the Cafir 10 and GTSRB datasets, and their recognition accuracy rates are above 99.13% and 88.25%respectively. The experimental results show that the SqueezeNet IR GRU model not only reduces the parameter amount greatly, but also its convergence, stability and recall rate are all much better than others. 相似文献
4.
5.
6.
7.
8.
9.
综采液压支架片阀及管路泄漏、串液是造成支架初撑力不足,综采工作面生产能力不能充分发挥的主要原因之一,准确判定和诊断液压支架本身泄漏故障及乳化液泵站效率,是提高综采面开机率,实现高产、高效的必要条件之一。针对目前液压支架泄漏主要原因进行探索,确立反映液压支架片阀及管路泄漏特征参量,经实验加以确认,并研制KBF2型液压泄漏检测仪,配合KJH4型矿压监测装置及BGC型乳化液泵站故障测定仪,对综采液压系统进行工况监测,以提高对综采液压系统故障的确诊率 相似文献
10.