Nicoleta Stroia

Assessment of Temperature Distribution in Intraperitoneal Chemohyperthermia

Advanced modeling techniques and multipoint temperature measurement devices are required in order to create a complex intraperitoneal chemohyperthermia physical model. This paper proposes two configurations appropriate for the implementation of a multipoint temperature measurement system. The design constrains were carefully defined considering the overall chemohyperthermia performance expectations and the need to provide thermal data for building a consistent 3D thermal map of the intra-peritoneal volume.

A Wireless System for Monitoring the Progressive Loading of Lower Limb in Post-Traumatic Rehabilitation

The paper presents a low cost system for wireless monitoring of the progressive loading of lower limb. This system contains a smart device able to measure the plantar pressure, to compare it with predefined levels and to signal the patient in order to avoid excessive loading of the limb in case of patients following post-traumatic rehabilitation.

A low cost architecture for remote control and monitoring of greenhouse fields

A low cost architecture is proposed for remote monitoring and control of a greenhouse field. The components needed for such a system are identified by examining the needs and trends of the environmental control systems as well as looking for the appropriate technologies that would offer a low cost. The key features of the proposed platform are remote operation, flexibility, ease of deployment, scalability and low cost. A sensing system, a communication system and a data processing system are components needed in order to monitor greenhouse fields placed in remote locations. Wired and wireless sensors are developed for collecting environmental data that characterize the operation of a greenhouse. A family of controllers and smart actuators is used next to the mentioned components in order to set up a control system whose behavior can be remotely programmed. A series of C++ applications running on Linux and Windows platforms were developed for experimenting and testing the complete telematic system.

Embedded platform for Web-based monitoring and control of a smart home

This paper presents the architecture of a low cost embedded platform for Web-based monitoring and control of a smart home. The platform consists of a distributed sensing and control network, devices for access control and a residential gateway with touch-screen display offering an easy to use interface to the user as well as providing remote, Web based access. The key issues related to the design of the proposed platform were addressed: the problem of security, the robustness of the distributed control network to faults and a low cost hardware implementation.

Self organized criticality in an one dimensional magnetized grid. Application to GRB X-ray afterglows

A simplified one dimensional grid is used to model the evolution of magnetized plasma flow. We implement diffusion laws similar to those so-far used to model magnetic reconnection with Cellular Automata. As a novelty, we also explicitly superimpose a background flow. The aim is to numerically investigate the possibility that Self-Organized Criticality appears in a one dimensional magnetized flow. The cellular automaton’s cells store information about the parameter relevant to the evolution of the system being modelled. Under the assumption that this parameter stands for the magnetic field, the magnetic energy released by one grid cell during one individual relaxation event is also computed. Our results show that indeed in this system Self-Organized Criticality is established. The possible applications of this model to the study of the X-ray afterglows of GRBs is also briefly considered.

Remote Monitoring of Industrial Systems Health

Abstract A low cost platform is proposed for remote monitoring the health status of an industrial system. The key elements of this platform are: a measurement system, a communication system and a data processing system responsible for analyzing data and estimating the status of the equipments placed in remote locations. Wired and wireless sensors are developed for collecting vibration, acceleration, current and temperature values that characterize the operation of remote industrial equipment. A “plug and play„ software application is implemented for allowing remote computers to share this sensor data using OPC technology. Using Matlab as an OPC client, time-domain and frequency-domain signal processing techniques are used in order to determine the signatures associated with faults of the remote equipments.

Digital Temperature Control for an Hyperthermic Intraperitoneal Chemotherapy Equipment

This paper presents the design of a digital temperature controller for cytostatic solution used in hyperthermic intraperitoneal chemotherapy (HIPEC). Cytoreductive surgery and HIPEC technique, i.e. Regional chemotherapy using cytostatic drugs at high temperatures of 42-43°C, represents a treatment technique for cancer patients suffering of peritoneal carcinomatosis. The main challenge is to maintain the desired temperature of the cytostatic solution in the intraperitoneal cavity, thus, avoiding local abdominal injuries and systemic hyperthermia. In order to maintain the adequate temperature a digital controller is designed using the Dahlin algorithm, a model based design technique.

Experimental Identification of Heating Process from Hyperthermic Intraperitoneal Chemotherapy (HIPEC) Equipment

Peritoneal Carcinomatosis (PC) carries a worse prognosis than other sites of systemic metastases. The combination of complete cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (HIPEC) is on the verge of becoming the gold-standard treatment of PC, when feasible. In order to develop a HIPEC equipment, with complex inflow distribution system having multiple nozzles and a multipoint temperature measurement system, model based techniques will be used by the authors in order to design heating and flow controllers. Thus a functional model is needed for the concerned process such that the simulated model and the behavior of the real system coincide. This paper presents the experimental identification of the heater used on each of the flow channels that result in a transfer function model for the heating process. Also the model for the temperature sensor is obtained

Web Based Monitoring of Solar Power Systems

Abstract A web-based solution is presented for remote monitoring of solar power systems. A webserver is implemented on an ARM Cortex-M3 microcontroller and accommodates the required functionality for remote monitoring and control of multipoint networks containing a variety of sensing and control nodes used in solar power system. Web based monitoring software consisting of an application running on the embedded platform and a PC application suite that supports configuring, installing and maintaining of all system components was developed.

Hydropower Structures Monitoring System with Hierarchically Distributed Smart Sensor Network

Traditionally, a remote monitoring system for the geotechnical instruments intended for surveillance of a hydropower structure is made using large concentrated data acquisition stations with a capacity of up to 256 measurement channels, connected to a local data acquisition server. This paper proposes a new hydropower structure monitoring system, based on a distributed architecture of smart sensor, organized as hierarchical sensor networks. Several developments are required in order to implement such a new system: development of a new family of network interfacing modules, implementation of a group of new smart wired and wireless sensors, implementation of a software application for configuring the sensor network, acquiring, visualizing and archiving data from sensors.