Remote Monitoring Network Research Articles

A lighting system using multiple climate sensors in conjunction with remote monitoring network

A lighting system using multiple climate sensors in conjunction with remote monitoring network

An improved lightweight certificateless generalized signcryption scheme for mobile-health system

The mobile-health system, also known as the wireless body area network for remote patient monitoring, is a system used to remotely monitor the human body’s health status parameters in real time. The generalized signcryption can realize encryption, signature, and signcryption with only one key pair and one algorithm. To address the communication security requirement for the mobile-health system, Zhang et al. recently proposed a lightweight secure data transmission protocol for the mobile-health system, which uses a certificateless generalized signcryption scheme. However, Zhang et al.’s certificateless generalized signcryption scheme is insecure. In this article, we propose an improved certificateless generalized signcryption scheme and then give a rigorous security proof of it. The confidentiality of our improved scheme can be reduced to the computational Diffie–Hellman problem, and the unforgeability, the Elliptic Curve Discrete Logarithm problem. Performance evaluation shows that our scheme has only slightly increased computational and communicational costs compared with the original scheme, but it is more efficient than other certificateless generalized signcryption schemes existing at present. What is more, it is also an efficient scheme compared with those ones protecting the mobile-health system. Based on our scheme, the same lightweight secure data transmission protocol for the mobile-health system can also be constructed, just like the one based on the original scheme.

Monitoring for and Diagnosis of Lead Dysfunction

The predominant structural mechanisms of transvenous lead dysfunction (LD) are conductor fracture and insulation breach. LD typically presents as an abnormality of electrical performance; the earliest sign usually is either oversensing or out-of-range pacing or shock impedance. Accurate diagnosis of LD requires discriminating patterns of oversensing and impedance trends that are characteristic of LD from similar patterns that occur in other conditions. Implantable cardioverter-defibrillators have advanced features to detect and mitigate the consequences of LD; these features operate both independently and in conjunction with remote monitoring networks.

Sounding out ecoacoustic metrics: Avian species richness is predicted by acoustic indices in temperate but not tropical habitats

Affordable, autonomous recording devices facilitate large scale acoustic monitoring and Rapid Acoustic Survey is emerging as a cost-effective approach to ecological monitoring; the success of the approach rests on the development of computational methods by which biodiversity metrics can be automatically derived from remotely collected audio data. Dozens of indices have been proposed to date, but systematic validation against classical, in situ diversity measures are lacking. This study conducted the most comprehensive comparative evaluation to date of the relationship between avian species diversity and a suite of acoustic indices. Acoustic surveys were carried out across habitat gradients in temperate and tropical biomes. Baseline avian species richness and subjective multi-taxa biophonic density estimates were established through aural counting by expert ornithologists. 26 acoustic indices were calculated and compared to observed variations in species diversity. Five acoustic diversity indices (Bioacoustic Index, Acoustic Diversity Index, Acoustic Evenness Index, Acoustic Entropy, and the Normalised Difference Sound Index) were assessed as well as three simple acoustic descriptors (Root-mean-square, Spectral centroid and Zero-crossing rate). Highly significant correlations, of up to 65%, between acoustic indices and avian species richness were observed across temperate habitats, supporting the use of automated acoustic indices in biodiversity monitoring where a single vocal taxon dominates. Significant, weaker correlations were observed in neotropical habitats which host multiple non-avian vocalizing species. Multivariate classification analyses demonstrated that each habitat has a very distinct soundscape and that AIs track observed differences in habitat-dependent community composition. Multivariate analyses of the relative predictive power of AIs show that compound indices are more powerful predictors of avian species richness than any single index and simple descriptors are significant contributors to avian diversity prediction in multi-taxa tropical environments. Our results support the use of community level acoustic indices as a proxy for species richness and point to the potential for tracking subtler habitat-dependent changes in community composition. Recommendations for the design of compound indices for multi-taxa community composition appraisal are put forward, with consideration for the requirements of next generation, low power remote monitoring networks.

Comments on “Light-Weight and Robust Security-Aware D2D-Assist Data Transmission Protocol for Mobile-Health Systems”

The mobile-health (M-Health) system, also known as the wireless body area network for remote patient monitoring, is a system which can remotely monitor a real-time human body’s health status parameters. Generalized signcryption can realize encryption, signature, and signcryption with only one key pair and one algorithm. To address the communication security requirement for M-Health system, Zhang et al. proposed a light-weight secure data transmission protocol for M-Health system by using a certificateless generalized signcryption (CLGSC) scheme recently. In this paper, we point out that an insider attack exists in Zhang et al. ’s CLGSC scheme, which destroys the confidentiality of the scheme. Thus, their light-weight and robust security-aware D2D-assist data transmission protocol for mobile-health system is insecure, too.

Software Development of Integrated Wireless Sensor Networks For Real Time Monitoring of Oil and Gas Flow Rate Metering Infrastructure

This research work describes the software development of an integrated wireless sensor network (WSN) for realtime remote monitoring of oil and gas flow rate metering infrastructure. The wireless sensor network includes flow sensors, pumping machines, microcontrollers, Wi-Fi or wireless links and a database server. The pumping machine first pumps oil and gas, then a flow rate sensor measures the quantity and communicates the flow rate data in meter cube per second via a wireless link to the database server for further processing. The resulting data is stored on the database server while the continuous flow rate is displayed in real time on the website designed as the humancomputer interaction (HCI) interface through which, the quantity of the oil and gas lifted can easily be accessed without having to collect the data from several stations manually. The cost-effective indices for reporting the quantity of oil and gas lifting are of significance to any accountable and transparent system. However, manual processes have not been able to do that in real time. In this paper, our main focus is to provide the software development life cycle involved in the design and implementation processes of the system prototype using iterative incremental mode and the complete software development architecture for the wireless sensor network.

BioMonitor 2 Pilot Study: Early Experience With Implantation of the Biotronik BioMonitor 2 Implantable Cardiac Monitor

The BioMonitor 2 Pilot Study assessed the implantation procedure, the sensing amplitude and the remote monitoring transmission success rate of the second generation implantable cardiac monitor, the BioMonitor 2 (Biotronik, Berlin, Germany). This was a prospective, multi-centre, single-arm, non-randomised study involving seven operators in five sites across Australia. Data were collected at implantation, during clinic visits at 1 week and 1 month post-implantation, and through wireless remote monitoring. Thirty patients with indications for long-term cardiac monitoring underwent successful insertion of a study device. The median implantation time was 9 minutes (interquartile range (IQR) 5-14 mins). The mean R-wave amplitude at 1 week was 0.75±0.39mV and remained stable over the follow-up period. Within 1 day, 97% of the patients connected to the remote monitoring network and daily messages were transmitted on 93.8% of all study days. Seventy-six per cent of patients transmitted at least one subcutaneous ECG (sECG), with a median number of sECGs per patient of seven (IQR 3-37) within 28 days. The results of the BioMonitor 2 Pilot study confirm the excellent sensing amplitudes afforded by this new device and the utility of the implantation tools and technique. Patient compliance with and the transmission success rate of the home monitoring system were excellent.

An Energy Demodulation Based Fiber Optic Sensing System for Landslide Early-Warning

To help reduce the impact of geo-hazards, an innovative landslide early-warning technology based on an energy demodulation-based fiber optic sensing (FOS-LW for short) technology, is introduced in this paper. FOS-LW measures the energy change in a sensing fiber at the segment of micro-bending, which can be caused by landslide movements, and automatically raises an alarm as soon as the measured signal intensity in the fiber reaches a pre-set threshold. Based on the sensing of micro-bending losses in the fiber optics, a two-event sensing algorithm has been developed for the landslide early-warning. The feasibility of the FOS-LW technology is verified through laboratory simulation and field tests. The result shows that FOS-LW has some unique features—such as the graded alarm, real-time responses, remote monitoring, low cost and passive optical network—and can be applied in the early-warning of landslides.

Indicators of wireless technologies for monitoring the quality and management

The problems of integration of the various wireless technologies, for-consists in the provision of required transmission speed and the transmission of information over a considerable distance at low power sensor nodes transmitters wireless Internet-water network for remote monitoring. Analyzed the integration of wireless LAN standard IEEE 802.11n/g and Bluetooth. Determined Graphic analytical dependence-dence, the defining characteristics of the data rate for wireless IEEE 802.11n / g networks. It analyzes the main shortcomings of BSS associated with ef cient use of batteries; the basic Metody reduce energy consumption for WSN based on the ZigBee technology, based on the planning schemes of awakening and data collection schemes. The possibilities MeshLogic technology solutions for the monitoring and control tasks that are critical to BPE-autonomous work Meni sensors.

HIGH RESOLUTION RESISTIVITY DETECTING AND REMOTE INTERNET MONITORING OF COALFIELD FIRE

AbstractFor detecting, controlling and monitoring the coalfield fire area, we deeply integrated Internet innovative achievement into traditional geological exploration technology, and developed a permanent wireless sensor network remote monitoring system with the functions of detecting the range and central temperature of fire area, continuous collection, high temperature detection, remote control, etc. The new sensor node, which can be connected with pole‐dipole device, was designed and deployed in the underground fire zone roadway for monitoring. The solar power supply device with protective circuit supplied continuous enough energy to on‐site data collection network. The data was transmitted to monitoring center through the mobile connection network and Internet for remote control and monitoring. The developed monitoring system that was deployed simultaneously in 12 fire areas of Xinjiang has been working for 45 months, which means technical measures can guarantee long‐term stability maintenance free operation of the monitoring system. Ürümqi monitoring center has received more than 1.1 million field data that can be preserved permanently and queried freely after authorization. This information provided basic data for the management of large area of coal spontaneous combustion fire area in Xinjiang. The results show that fully utilizing the Internet for optimization and integration in geophysical exploration and monitoring has the vital significance to promote coal geological exploration innovation and production capacity.

Heterogeneous Wireless Sensor Network for Real Time Remote Monitoring of Sand Dynamics on Coastal Dunes

In this paper, the architecture of a heterogeneous Wireless Sensor Network (WSN) to be deployed on coastal sand dunes is described, the aim of which is to provide real time measurements of physical parameters to better define the sediment transport in connection with Aeolian processes. The WSN integrates different typologies of sensors and is provided with both local and remote connection. In particular, three different typologies of sensors are integrated in the network: a multilayer anemometric station, a sensor developed ad-hoc to measure the sand dune level and a sand collector capable of measuring the weight of trapped sand and its quantity. Each sensor node is made up at least of a ZigBee radio module that is able to transmit the data collected by the sensor at a distance of about 100 meters. While the sand level sensor and the sand collector are provided only with this transmission module, the anemometric station also integrates a microprocessor board in charge of data processing. A Gateway node provided with a GSM connection for remote data transmission and a Zigbee radio module for Local Area communication has also been developed. This node is in charge of collecting all the data packets sent by the Sensor Nodes and transmit them to a remote server through GPRS connection. A Web server has been set up to collect these packets and store them in a database. The proposed WSN can provide both a static and a dynamic framework of sand transport processes acting on coastal dunes.

16-60: A New Approach to analyze ICD therapy Efficacy. Single-Centre Experience of Discovery™ Link TachyMed (Medtronic, USA)

The goal: to analyze an ICD therapy efficacy using an application Discovery™ Link TachyMed (Medtronic, USA). Materials and Methods: We enrolled 154 patients connected to the remote monitoring network Carelink (Medtronic, USA) who had an implanted dual (46) and triple chamber ICDs (108). Device programming parameters and intracardiac electrograms were studied. To carry out quantitative analysis of ICD therapy efficacy an application Discovery™ Link TachyMed was used. Statistical data are presented as Median (IQR 25%; 75%). Results: A dual zone ICD programming is frequently used (68%) in our center. A choice of single or triple ICD configuration is made rarely (in 22% and 10%, respectively). A zone of slow VT (sVT) corresponds to 179 (168; 182) bpm. A zone of fast VT (fVT) is programed in the range over 182 (176; 240) bpm and a zone of VF is detected in case of tachycardia equal or above 200 (188; 200) bpm. In most cases standard manufacturer discrimination algorithm is used. 690 episodes of VT were analyzed: 43 in VF zone (11 patients), 565 (12 patients) and 82 episodes (6 patients) in sVT and fVT zones respectively. ATP strategy was used in 78% cases (538 VT events). It was effective in 85% of initial VTs. These episodes were frequently referred to sVT and fVT. In 11% of analyzed VTs (76 events) a sinus rhythm was restored after ICD shock. It was usually due to VF events detection (75%). The vast majority of ICD shocks were delivered with submaximal values of energy (less than 35 Joules). Other episodes stopped spontaneously. Inappropriate shocks were delivered in 8 patients: in 5 of them due to atrial flutter with 1:1 conduction, in 2 patients because of atrial fibrillation with fast ventricular rate. In 1 case an electrical noise detected by a defibrillation lead was a reason for an appropriate shock. Conclusions: A low percent of inappropriate shocks was registered (7%). In most cases VT episodes were stopped by ATP, in cases of ICD shocks low values of energy were effective. Remote monitoring system provides facilities for early identification of the reasons of inappropriate ICD therapy. Discovery™ Link TachyMed application allows to carry out a quantitative analysis of ICD therapy efficacy which is especially necessary in centers with a high volume of ICD implantations.

Health technologies

A report by the Nuffield Trust explores some of the possibilities to transform health care through digital technologies, ranging from clinical decision support tools and electronic vital signs monitors, to remote monitoring and digital patient networks. Download the report at tinyurl.com/h5eb2tv

The Research on Programmable Control System of Lithium-Bromide Absorption Refrigerating Air Conditioner Based on the Network

This article regard the solar lithium-bromide absorption refrigerating air conditioning system as the research object, and it was conducting adequate research of the working principle of lithium bromide absorption refrigerating machine, also it was analyzing the requirements of control system about solar energy air conditioning. Then the solar energy air conditioning control system was designed based on PLC, this system was given priority to field bus control system, and the remote monitoring is complementary, which was combining the network remote monitoring technology. So that it realized the automatic control and intelligent control of new lithium bromide absorption refrigerating air conditioning system with solar energy, also, it ensured the control system can automatically detect and adjust when the external conditions was random changing, to make air conditioning work effectively and steadily, ultimately ,it has great research significance to research the air conditioning control system with solar energy.

Mechatronic thermostatic water mixer for building automation

The use of sanitary water is a main aspect of comfort and healthiness within a house or a public environment as gyms or beauty farms. At the same time, water waste should be limited to a minimum in order to preserve both water and the energy required to warm it. To obtain these results, it is necessary to rule quickly and in a precise way the temperature. It is also necessary to check the presence of possible contemporary flow requested by different users in order to optimize distribution in the house network. This work describes a mechatronic water mixer that was developed to ensure fast and precise control of flow and temperature of delivered water. The flow control is based on modulating digital valves driven in pulse code modulation and on a microcontroller board. The electronic unit is designed to interface with a domotic network for remote control and total consumption monitoring and optimization.

레일리파 기반의 고감도 변형률 센서에 관한 연구

Piezoresistive-type, capacitive-type, and optical-type sensors have mainly been used for measuring a strain. However, in building a sensor network for remote monitoring using these conventional sensors there are disadvantages such as the complexity of a measuring system including wireless communication circuitry and high cost. In this paper, we demonstrates a highly-sensitive surface acoustic wave (SAW) strain sensor which is advantageous to harsh environments and wireless network. We designed and fabricated the SAW strain sensor. The SAW strain sensor attached on a specimen was tested with a tensile tester. The strain on the sensor surface was measured with a commercial strain gauge and compared with that obtained from strain analysis. The central frequency shift of the SAW sensor was measured with a network analyzer. The sensitivity of the SAW strain sensor is 134 Hz/με which is high compared to previous results.

Performance of Lead Integrity Alert to Assist in the Clinical Diagnosis of Implantable Cardioverter Defibrillator Lead Failures

Background— The Lead Integrity Alert (LIA) was developed for Medtronic implantable cardioverter defibrillators to reduce inappropriate shocks for rapid oversensing caused by conductor fractures and reported for Medtronic Fidelis conductor fractures. The goal of this study was to compare the performance of LIA with conventional impedance monitoring for identifying lead system events (LSEs) and lead failures (LFs) in lead families that differ from Fidelis. Methods and Results— We analyzed data from 12 793 LIA enabled implantable cardioverter-defibrillator and lead combinations including 6123 St. Jude Riata or Durata, 5114 Boston Scientific Endotak, and 1556 Fidelis combinations followed in the CareLink remote monitoring network for LSEs and LFs. Each alert was adjudicated based on implantable cardioverter-defibrillator stored electrograms/diagnostics and clinical data as an LSE or non–lead system event by 2 physicians after reviewing the electrograms and clinical data. During 13 562 patient-years of LIA follow-up, there were 179 adjudicated alerts, of which 84 were LSEs (including 65 LFs) and 95 were non–lead system events. LIA identified >66% more LSE and >67% more LF compared with conventional impedance monitoring and did not differ by lead family for LSE ( P =0.573) or LF ( P =0.332). Isolated spikes on electrogram were associated more often with LF in St. Jude leads (71%) compared with Endotak (9%; P <0.001) and Fidelis leads (11%; P <0.001). The non–lead system event detection rate was different among lead families ( P <0.001) ranging from 1 in every 78.5 years (Endotak), 228.9 years (St. Jude leads), and 627.6 years (Fidelis). Conclusions— LIA markedly increased the detection rate of LSE compared with conventional impedance monitoring.

Design of Distributed Indoor Air Quality Remote Monitoring Network

Aimed at the characteristics of indoor application environment, a real-time wireless monitoring system for indoor air quality based the nRF24L01 and GSM network was proposed. The system built the star subnet structure with nRF24L01 wireless module, used GSM module SIM300 to complete wireless communication between the subnet and GSM network, and achieved GSM network users to remotely monitor indoor air quality. The subnets with master-slave structure mode, which was constituted by the control terminal and multiple data collection terminals, implemented indoor air quality concentration and temperature and humidity data real-time acquisition with the centralized control method. The experimental results show that the subnets can real-time finish wireless data transmission within a distance of 700 meters, and the system with simple structure and stable work can realizes real-time monitoring of indoor air quality.

The Bus Dispatching Optimal Control System Based on Real-Time Data Acquisition

In this paper, main software module in the subject The Bus Dispatching Optimal Control System Based on Real-time Data Acquisition has been designed. By gradually changing the departure time interval, the system uses SCM to simulate the system running status in various time periods so as to determine the optimal departure time interval, and has established the integrated and optimal scheduling model through the research and development of four functions i.e. data acquisition, remote network monitoring, C/S/S architecture, network access. This article will focus on the design of the main module of software part in the system.

Sensor Network for Monitoring the State of Pollution of High-Voltage Insulators Via Satellite

This paper describes the design and development of a sensor system network for remote monitoring of the state of pollution on high-voltage insulators, its deployment among four states in Northeast Brazil and preliminary analysis of the data gathered by the system. Six monitoring units, each composed by leakage current, humidity, and temperature sensors, an electronic processing module, and a satellite-communication link, were built and installed on 230- and 500-kV transmission towers. Measured data are sent by the different systems via satellite to a database controlled by a web-based graphical user interface, incorporated into the supervision-management system of the electric utility company. Sample field results on one of the sensor systems, both for short- and long-term measurements, show a direct correlation of the activity recorded by the system with the pollution level expected to occur near the corresponding monitoring point.