A Lightweight SOAP over CoAP Transport Binding for Resource Constraint Networks

Abstract—A huge momentum towards IP enabled Wire-less Sensor Networks (WSN) appeared through the emerging 6LoWPAN protocols (i.e. IPv6 over Low power Wireless Personal Area Networks). By using existing cross domain open standards in contrast of proprietary solutions, technologies and deployments are not tailored too tight for specific applications. Nevertheless, 6LoWPAN is only the first step. Still efforts on higher layers on top of 6LoWPAN are an urgent need to provide the seamless connectivity and interaction of highly re-source constrained devices with higher valued applications and services. This paper describes a new approach to bind SOAP to the emerging Constrained Application Protocol (CoAP) protocol. Thereby, CoAP provides a lightweight but reliable transport binding for SOAP. Compared to the widespread TCP based HTTP binding, round trip times can be reduced by 43% in an exemplary scenario because of the omitted expensive bidirectional TCP handshake mechanisms. Combined with dedicated XML compressors like EXI, SOAP based protocols become also applicable in WSNs

SIRENA - Service Infrastructure for Real-time Embedded Networked Devices: A service oriented framework for different domains

The SIRENA project started in 2003 to leverage Service Oriented Architectures (SOA) to seamlessly interconnect (embedded) devices inside and between four distinct domains- the industrial, telecommunication, automotive and home automation domain. A framework was developed to achieve this aim as well as to assure interoperability with existing devices and extensibility of networks based on SIRENA technology. The core of the framework is the Devices Profile for Web Services (DPWS) which will play an important role in the upcoming Microsoft Windows Vista platform. The first DPWS stack worldwide for embedded devices developed by the SIRENA consortium is described and its operation evidenced in several demonstrators. This paper presents the results of the SIRENA project, provides insight into the technologies used and presents tools, components and services for advanced development, deployment and maintenance of devices. 1

Local Movement Control with Neural Networks in the Small-Size League

Abstract. In the RoboCup small-size league, it is common to calculate the robot’s position calculated via a camera over the field as well as different kinds of artificial intelligence that’s run on a PC outside the field. In this case, the robot’s position must be predicted because of the various delays until the position data arrived at the robot. This paper focuses on the use of local sensors on the robot and a neural network to estimate the robot’s actual position. This paper shows how local sensors can compensate for the effect of latency times and how robot’s actual position can ascertained. Slip and friction effects that cannot be measured with local sensors are adjusted by a neutral network.

CoolRUNners Team Description Paper for RoboCup Small-Size League 2006

Abstract. This paper describes the CoolRUNner team that participates in the RoboCup small-size league. It focuses on the description of the various components of control architecture. Controlling is done on two levels: the global control, with the distributed strategy module and the broadcast communication via DECT and the local control and positioning of the robot.

Investigation of the Use of Embedded Web Services in Smart Metering Applications

Abstract—The actual situation in smart metering is characterized by a coexistence of a large number of proprietary and open standards for wired as well as wireless communication. These standards show low or no interoperability to each other. Therefore, it is very difficult to integrate multi-vendor solutions using one sustainable holistic approach. The proposed approach is to use Web Service technology as an open widespread Internet standard for the creation of a heterogeneous network for smart metering devices. Smart metering is an emerging topic for realizing modern energy policies. Monitoring, analyzing, and controlling of power consumption is the precondition for optimizing energy strategies. This work focuses on the integration of Web Service technology in the area of smart meter communication. Furthermore, mechanisms for reducing Web Service traffic overhead by over 90 % is presented