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To ensure that people can supplement enough water at the right time, an initiative service method based on intention understanding for drinking service robot is proposed. Firstly, individual factors and environmental factors which are associated with personal intentions are collected. Secondly, users' intention and desire degree for intention are obtained by an improved Fuzzy-Context-specific Intention...
NiO/mesoporous SnO2 was deposited by incipient wetness impregnation of the SnO2 powder prepared by hydrothermal synthesis route templated by Brij® 35. The sensing properties were acquired and the dependence on the operating temperature of the sensitive material was pointed out. Sensitive selectivity towards H2S detection was highlighted at 350 °C.
With the requirements of circuit breaker's insulation and arc-interruption characteristics tests, a modular multi-function experimental platform is designed. The designed experimental platform takes the insulation and arc-interruption characteristics of the dielectrics in vacuum chamber and gas chamber as the experimental subjects; taking impulse generator, DC voltage source, current source, and frequency...
Lamb wave gas sensor has broad industrial application prospects in gas sensing due to its multi-mode characteristic. Lamb wave gas sensor is now still in fundamental academic research period and its performance remains to be determined and verified experimentally. However, there is a lack of test system that can fully meet the test requirements of Lamb wave gas sensor. In this paper, a test system...
To study the failure mechanism of LED driver and predict the life of it, this paper analyzes the LED driver possible failure forms and the causes which make the driver fail. Three accelerated life model are introduced in this paper and how to get the parameter is discussed. LED diver high accelerated life testing platform is built to test the sample driver life and get the parameter in the accelerated...
This research would be the early stage in saving and managing energy, especially electrical energy in a miniature. The research has been done in the assembly of components, namely temperature, humidity, lighting and electric active power sensors, where they were equipped by 4–20 mA transmitters. These transmitters entered to the four channel analog module of programmable logic controller (PLC). From...
We introduce the design, calibration, and validation of a wearable, wireless, and secure air quality monitoring sensor system that is integrated with a smartphone application and back-end server for realtime data collection. To this end, an Alphasense OPC-N2 optical air quality monitoring sensor was integrated with a wireless hardware platform and real-time smartphone application, which sent particulate...
To solve the problem of predicting the service life of smart electricity meters, this paper proposes a life estimation method using the hypothetical model and field operation data. First, the hypothetical model is studied. Analyzing the influence of temperature, humidity and current on the operational reliability of electronic equipment, the reliability model of smart electricity meter with acceleration...
Indoor environment could be hazardous to occupants, so hazard information for detection, prediction and reaction becomes necessary. In order to provide comprehensive hazard information, this research proposed the concept of Performers System with the purpose of applying STAMP (Systems-Theoretic Accident Model and Process) model to indoor environment safety. The STAMP model is based on general system...
Demand peaks in electrical power system cause serious challenges for energy providers as these events are typically difficult to foresee and require the grid to support extraordinary consumption levels. Accurate peak forecasting enables utility providers to plan the resources and also to take control actions to balance electricity supply and demand. However, this is difficult in practice as it requires...
Literature analysis shows existence of data about weather influence on man's diseases. Selection of diseases in Arkhangelsk region from multifunctional information system was made. Analysis of people prevalence in several human settlements of Arkhangelsk region by means of statistic methods was conducted. The analysis demonstrated dependence of people prevalence on weather conditions as follows: a...
Precise control of the environmental parameters such as light, temperature and humidity can provide a favorable growth environment for the greenhouse plants. Due to the sensitive nature of breeding of these plants and complex interaction of the system variables, it is important to understand the greenhouse parameter system's characteristics. In this paper, a small-scale greenhouse is designed and...
This paper deals with analyzing humidity field estimation, using one humidity sensor in the central area and eight separate temperature sensors in each corner. This technique can replace expensive techniques of humidity field measuring using nine humidity sensors.
A USB cable can be triboelectrically charged by rubbing it against a piece of clothing, such as a sweater. If a charged cable is inserted into a connector, an ESD event can upset or damage attached equipment. To investigate charge levels and estimate the resulting voltages on a USB cable, a set of experiments has been performed in a climate chamber under five different environmental conditions. These...
The reliability of electronics products has become a serious problem due to the increasingly harsh environmental conditions when the products are in use. Due to demand on greater performance and higher integration in microelectronic devices, the electronics industry has been seeking suitable components, packaging and cooling techniques to achieve low-cost and high-reliability. This paper presents...
Receiving radio waves directly from satellites is difficult in an indoor environment, making accurate location estimation by satellite signals difficult. Since mobile communication propagation channels suffer from fading and shadowing, estimating accurate locations in an indoor environment by using only the received signal power of a radio wave is also difficult. In addition to using the received...
Modern greenhouse creates suitable crop growth conditions through changing inside temperature, humidity, solar radiation, concentration of carbon dioxide and other environmental factors to raise production and increase economic benefits. The greenhouse microclimate environment model can not only simulate the behavior of a system well but also design the inside controller suitably to be applied to...
The quality of short term electricity demand fore-casting is essential for all the energy market players for operation and trading activities. Electricity demand is significantly affected by non linear factors such as climatic condition, calendar and other seasonality have been widely reported in literature. This paper considers parsimonious forecasting models to explain the importance of meteorological...
Electromagnetic interference is a most important cause for wrong alarming and failing to alarm of on-line PD detection in substation. The characteristics of electromagnetic interferences are dynamic change under the influence of many factors, thus the difficulty of its identification and suppression is increased. Therefore, typical substations in geographical position and voltage level was selected...
High voltage laboratories are designed to have sufficient clearances to avoid undesired flashovers from generator surfaces. However, numerous factors influence the characteristics of breakdown in air, including ambient conditions such as temperature, pressure, and humidity. If the laboratory environment is not adequately controlled, ambient conditions could deviate as a function of elevation and result...
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