普适计算环境下工艺操作流程中的活动识别研究

发布时间：2018-02-25 23:26

本文关键词： 普适计算工艺操作流程活动建模活动识别　出处：《大连理工大学》2012年硕士论文　论文类型：学位论文

【摘要】：随着计算机技术和无线网络的快速发展、传感器与移动设备的广泛应用,计算模式从传统的桌面计算模式发展到普适计算模式,处于这种模式下的用户,能够透明地使用普适计算环境下的各种计算能力和服务资源,所以普适计算环境应该具备获取和处理周围环境及推断与用户活动相关的情境信息的能力。研究表明如果能对用户的动作行为或者从事的活动进行准确地识别,根据识别的活动信息可以为用户提供准确及时的服务信息,有助于用户规范地操作和完成活动。因此活动识别已经成为近年来普适计算领域中的一个重要课题。在活动识别的过程中,根据获取周围环境的变化和用户的动作行为去推断用户的活动是一项有挑战性的工作。本文研究的活动识别是处于工艺操作流程中的规范活动,它是由若干复杂的操作组成、为了达到一定目的或者完成一定任务的复杂的有机活动实体,根据一段时间内的情境变化,识别用户操作的活动信息和用户的异常动作,为用户提供相应的提示和服务。本文结合已有活动识别的相关研究,归纳和总结出活动识别的一般步骤。本文首先提出活动识别的系统框架：情境采集层、情境处理层和情境感知服务层。在情境处理层,包括活动建模和活动识别,其中采用情境推理的方法实现活动识别。为了形式化描述工艺操作流程中活动间相互作用及不同活动的情境信息,在对工艺操作流程结构和活动进行定义后,根据工艺操作流程中活动间的逻辑关系建立活动流程模型,同时使用情境模式和情境演化模式的概念来描述活动和活动不同的状态,以便于准确识别用户的活动和操作活动的异常信息。在活动模型的基础之上,我们提出活动状态可以区分的规则,活动模型若满足活动状态可区分的规则,根据活动模型、已知的活动和活动状态及其某一时刻情境取值,通过相应的识别算法识别当前情境对应的活动信息；对于不满足活动状态可区分规则的活动,根据活动模型和一段时间内情境取值进行匹配,实现活动识别和检测用户在操作过程中的异常动作信息,从而可以帮助用户更好地操作活动。本文通过对具体应用的工艺操作流程进行活动识别,设计活动识别的原型系统,利用计算机实现提出的活动识别算法和原型系统,验证提出的活动识别方法,有效地实现活动识别和监测用户异常操作。
[Abstract]:With the rapid development of computer technology and wireless network and the wide application of sensors and mobile devices, the computing mode has developed from the traditional desktop computing mode to the universal computing mode. Be able to use transparently the various computing capabilities and service resources in a pervasive computing environment, Therefore, the pervasive computing environment should have the ability to acquire and process the surrounding environment and infer the situational information related to the user's activities. According to the identified activity information, it can provide users with accurate and timely service information, and help users to operate and complete activities in a standardized manner. Therefore, activity recognition has become an important topic in the field of pervasive computing in recent years. In the process of activity identification, it is a challenging task to infer the user's activity according to the change of the surrounding environment and the user's action behavior. The activity identification studied in this paper is a normative activity in the process operation process. It is composed of a number of complex operations, in order to achieve a certain purpose or complete a certain task of the complex organic activity entities, according to a period of time, according to the situation changes, identify the user operation of the activity information and abnormal actions of the user. To provide the user with the appropriate tips and services. In this paper, the general steps of activity recognition are summarized and summarized. Firstly, the system framework of activity recognition is put forward: situation collection layer, situational processing layer and situation-aware service layer. It includes activity modeling and activity recognition, in which situational reasoning is used to realize activity recognition. After defining the structure and activity of process operation process, the activity process model is established according to the logical relationship between the activities in the process operation process, and the concept of situational pattern and situational evolution pattern is used to describe the different states of activity and activity. In order to accurately identify the abnormal information of user's activity and operation activity, on the basis of the activity model, we propose the rules that can be distinguished by the activity state. If the activity model satisfies the rule that the activity state can be distinguished, according to the activity model, The known activities and activity states and their situation values at a certain time are identified by the corresponding recognition algorithm. For those activities which do not satisfy the rules of activity state, the corresponding activity information is recognized by the corresponding recognition algorithm. According to the activity model and a period of time to match the situation to achieve activity identification and detection of abnormal action information in the process of operation, which can help users to better operate the activities. In this paper, a prototype system of activity recognition is designed, and the algorithm and prototype system of activity recognition are realized by computer, and the proposed method of activity recognition is verified. It can effectively realize the activity identification and monitor the abnormal operation of the user.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP338

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