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A new server-decentralized Internet architecture based on Jabber for robot remote control is proposed in order to have high availability, performance, scalability, fault tolerance and security. Four components of the architecture: operators, robots, transfer servers and data-keeper are defined and functioned. The robot-controlling data/robot state data are(More)
The recent and rapid advances in hardware have led to an explosion of real-time and concurrent applications, especially real-time control system applications. This, in turn, requires practical software development with new technologies such as Object- Oriented Analysis and Design (OOAD), Model-Driven Development (MDD) with the Unified Modeling Language(More)
Energy consumption of communication is a key factor of the lifetimes of wireless sensor networks. This paper presents an energy-efficient routing protocol for wireless sensor network. In the protocol, each sensor node detects the distance between the base station and itself. Then, it calculates a tier ID in according to the distance. A lower tier ID(More)
Real-time indoor location determination is indispensable for an autonomous robot. It can also provide various location-based services for other applications. In this paper we set up an indoor positioning system (IPS) framework consisting of an array of iBeacons that are fixed in the environment to send signals and an android phone as the positioning device(More)
A subsystem for controlling and managing the closed-shelf stacks of Beijing Institute of Technology Library is developed. The implementation of the proposed subsystem's functions and the scheme for optimizing schedules scheme are discussed. Traditionally, the book selection process is time-consuming and inefficient. To address this problem, an improved(More)
A simulation platform was introduced to build robot simulation model more conveniently and quickly for the networked robot operating system based on augmented reality. Encapsulating most of the basic OpenGL functions, the platform was organized in a layered structure and made up of two kinds of nodes: geometric nodes and action nodes. Multiple geometric(More)