Sensing node network system (SNNS) is a compatible system for monitoring landslide disaster. Sensing node consists of sensors, data processing unit and wireless communication unit. In detection of landslide occurrence and grasping posture of sensing node; acceleration sensor is use. This paper describes the observation and estimation method of dynamic spatial behaviour of sensing node by acceleration signal. By monitoring the dynamic situation of the angles between acceleration vectors in three orthogonal axes, the posture and dynamic behaviour of sensing node during landslide disaster is...
Sensing system to monitor natural disasters faces much hard conditions. Natural disaster occurs suddenly, and damages sensor system. Then, the sensor system should be designed as distributed node network. In addition to that, the network should have some characteristic functions like self-recovery, autonomous operation and effective data transmission in urgent. This paper describes the construction of autonomous sensing node network to recover the damage by landslide disaster and to transmit urgent data effectively. By switching operation modes autonomously, the sensing node network becomes...
This paper shows the monitoring system of dynamic state of river surface by using video image. The dynamic state is estimated by the flow speed and direction of micro blocks distinguished evenly on a frame of video. By the dynamic state of river surface, water behavior and dangerous area will be distinguished. Aim of this study is to clear the dangerous area, presume disasters, inform them to local/national government and alarm them to people.
In this work the Proficiency Testing Scheme (PTScheme) had been used for evaluation of performance of the laboratories of automotive emissions to measure the levels of emissions of the vehicles, supplying subsidies to the laboratories in order to identify and solve analytical problems and contributing for the harmonization of the results of the measurements in the country. The PTScheme of automotive emissions is a type of study, provided only in Brazil and it can be concluded that the results have been satisfactory and of great importance for the industry, society and environment. In this...
The main problem in operation of industrial turbidimeters is a buildup of parasitic deposits on transparent windows of light sources and photodetectors. The analysis of possible designs of sensors-cleaning devices for field turbidimeters is developed. The classification and several versions of practical constructions are offered.
This paper is relating the effort to organize a pertinent measurement plan to analyze 2 aquatic ecosystems, a canal and a lake, where the issue is to improve the natural surviving of fishes for the benefit of local angling clubs. The first case is a 4 century old canal, located in a castle, built from its very beginning for French king entertainment and trout rising; the issue is related to the massive introduction of new fishes every November which are disappearing during winter while trout, fishes very sensitive to pollutions, are surviving. The second case is a more recent lake dedicated...
The paper justifies the idea of continuous monitoring of terrestrial objects by means of multicopters. Multicopters are unmanned aerial vehicles of a special type with the obvious advantages for tasks of monitoring. It is proposed to use a group of multicopters changing each other on duty over the object and a special charging station for their maintenance. The structure and functioning of the proposed system is described.
The paper is devoted to the abilities of Raman probe to detect simultaneously several salts diluted in water. It has shown that this probe can be used for in situ monitoring of pollutants in waste water.
The paper describes the idea and the corresponding research concerning some improvements in the contactless turbidimeters designed with the so called freefalling stream technology. The aim of such improvements is to raise the metrological performance and reliability of online industrial turbidimeters of the mentioned type.
This paper addresses the measurement framework underlying experimental works on time discounting and the methodological reasons of the high variability of its empirical results. In particular, the paper discusses the argument that the variability of the results is due to the context-dependency of the processes that motivate people to display discounting behavior.