With the development of the wireless communication technology and intelligent wireless sensor, the positioning services based on WiFi are increasingly demanded. In this paper, we implement an indoor assets location system, based on WiFi and WiFi Received Signal Strength Indication (RSSI) measuring device...

The performance of the braking system has an important influence on the safe operation of the train. In this paper, the AMESim simulation software is used to simulate the pneumatic valve unit (PVU) for the direct electro-pneumatic braking system controlled by the microcomputer. And the correctness of...

Through the deep research on the mathematical model of high efficiency machining movement, the method of developing the simulation system of high efficiency machining machine tools in general software environment is discussed. According to the characteristics of high efficiency machining machine tool,...

Wechat is a popular social platform developed in 2011 by Tencent. In this paper wechat traffic is analyzed by a novel hybrid method, which combines statistical method, payload-based method, SVM, CRC and deep learning. Firstly, the statistical method is utilized to extract features from wechat packets...

Jietai Temple landslide is located in the north wing slope of Ma'an mountain, Mentougou distric to Beijing, and is China's key cultural relics protection units and famous Buddhist temples. According to Jietai Temple landslide formation conditions, predisposing factors, deformation and failure characteristics,...

The new features of IPv6 lead to the lack of the existing network management system to support IPv6.The article focuses on the IPv6 neighbor discovery protocol, address auto configuration, and some the not accessible information in IPv6 MIB. The article also tries to solve the problems.

Pixhawk is an open-source flight control system. The research on the attitude control algorithm Pixhawk uses provides a good reference for the use and development of the Pixhawk. In this paper, it provides a theoretical analysis of the attitude control algorithm of multi-rotors in Pixhawk, and it also...

This paper discusses the issues related to chaos synchronization between two four-wing fractional-order chaotic systems with identical structure by using state observers. The effectiveness and feasibility of the proposed synchronization scheme are verified by numerical simulations and experimental records,...

In order to improve the quality of data collection, a method of dada collection with high reliability is proposed in this paper. Based on the data collection method, the software and system platform of client intelligent electricity information system (CIEIS) is designed to further analyze client electricity...

Big data is the focus in power system currently. In order to analyze and classify the electricity model of clients, identify the avoiding peak space intelligently, extract value-added information of clients and control the electric load actively, it is extremely necessary to analyze the information of...

We study on the generation of efficient terahertz (THz) wave. This scheme applying cavity phase matching (CPM) optical parametric oscillator (OPO) with a GaAs crystal sheet by CO2 laser is proposed. The THz wave is emitted the nonlinear crystal. We calculated the optimized cavity length in a GaAs crystal...

This design uses three point convergence type suspension system The upper pull rod adopts the hydraulic oil cylinder to adjust the buried angle, and use rope winding device connection the lower pull rod It can independently adjust the working condition of the equipment. Small multi-function chassis suspension...

With the development of measurement technology, people have accumulated a large amount of data, these data which often with time stamp can be regarded as time series. The basic idea, the process of modeling, and prediction process of fault temperature signal prediction based on ARMA model are presented...

Sliding Variable Control has been widely intruduced in industrial fields and achieved good results,because it takes strong robustness without parameters affected and anti-jamming features.The electronically controlled diesel engine is a typical multi-disturbance dynamic and nonlinear system of delay.In...

BOM database is designed through the analysis of the actual situation of the production workshop of the torque converter and the demand of enterprise. This paper analyzes scheduling management module, material distribution management module, real-time monitoring module and management module in the hydraulic...

To improve the output characteristics of the double-action vane pump, a numerical simulation of flow field in double-action pump was carried out based on CFD. The study indicates that the reason of flow and pressure fluctuation in vane pump is because of "high pressure reflux". By applying the high-order...

Pod bracket is the connecting part of azimuth axis and pitch axis, due to the influence of the plane attitude, wind resistance and other factors on the plane, its rationality and reliability of design deserves a high degree of concern. First, the specific structure is determined according to the technical...

Rate estimation is useful for many H.264/AVC applications including rate-distortion optimization (RDO) for fast mode decision and precise rate control. In this paper, we propose a new header rate prediction model and an adaptive algorithm to provide more accurate estimation of the number of total coding...

In order to apply the lithium-ion batteries on the electric vehicles reliably and safely, estimating the internal statements of the batteries, such as the state-of-charge (SOC) is obligatory. The purpose of this work was to present a SOC estimation method named parallel arithmetical unscented Kalman...

With increasing service life of offshore platform, the platform components have different degrees of damage and aging. In order to ensure the safety of offshore platform, the structure monitoring need to be implemented. The optical fiber sensing network is composed of FBG(Fiber Bragg Grating) accelerometers,...

The black-dot defects on galvanized thick sheet surface after galvanizing line, which is the traditional construction materials with 1.5mm thickness, was studied. Characterizations of the research samples were carried out using a SEM in order to understand the causes of the defects. The results showed...

A novel long-term driving monitoring system with soft conductive foam and piezoelectric polymer film sensors was designed to enable measurement of two physiological signals: the electrocardiogram (ECG) and ballistocardiogram (BCG). The ECG was acquired using dry contact foam electrodes integrated into...

In this paper, a specific florescence detection system for florescence isothiocyanate (FITC) was developed which could be controlled by the intelligent mobile phone through Bluetooth. FITC is a popular fluorescent dye in biological application. According to its fluorescent characteristic, the light emitting...

Wetland is a valuable natural resource, with irreplaceable ecological functions. With the development of industrialization, urbanization and population growth, wetland area is decreasing. And ecological functions gradually weakened. Based on TM remote sensing image from 2000 to 2011, this paper built...

Design and implementation of a system is introduced, which is designed to provide tools for station-management in the regional telemetry seismographic network, with a visual way to process data on management and geographic of seismographic stations. Web services including WebGIS, station-information...

The network protocols and data formats of several types of seismic digitizer are analyzed, and the development of a middleware is introduced. The middleware provide users with java APIs to implement communication with seismographic digitizers and data receiving, decoding, publishing and storing. It uses...

The control system of experimental equipment for electrical exploding wire opening switches designed in this paper includes two parts, i.e., the main control system and human-machine interface. The main control system is composed of a c8051f020 MCU motherboard and two pieces of IO expansion boards to...

Nano measurement technology is an important means of nano-mechanical properties of thin materials research. Aerial film has more excellent physical and mechanical properties compared to common film. Nano indentation continuous stiffness testing method is applied in the paper, the nano-mechanical properties...

This paper did carefully research on the principle of point test method for semiconductor devices testing, and pulse step current source and voltage source was developed. Verification system of the interval pulse IV test method was developed to identify the relationship of the pulse width and interval...

Digital restoration of the full-coverage crowns and bridges mainly consists of the connector generating and model fusion. Through defining the section template, the default connector can be generated under the guide of the idea of skin, whose curve can be edited by the control points. If the connector...

The smart lock control device has functions of active wireless authentication and GSM remote unlocking. A smart key can match with 8 locks. A smart lock can have 8 keys. When the intelligent lock receives unlocking request, it will send an encrypted authentication request packet on its own initiative....

In order to solve the problem in monitoring high temperature strain coming from harsh working environment and extremely small deformation of components, a flexure-hinged displacement amplifier is proposed to be integrated in a sensing device in order to design a more sensitive sensor to accurately online...

To test the boundary values of input variables is very useful but difficult when designing and debugging a software system for scientific computations. In this paper, the model-based method and the simulation-based method are integrated to form a practical approach to deal with this troublesome problem...

The function of generating paper is a core part for Computer examination system, which has huge influence on the quality of the examination system. The process of generating paper is that some examination questions are selected from paper database according to the composing evaluation function satisfying...

For middle scale components online detection, a chip online detection method was proposed based on machine vision, the hardware platform was built, the software system was developed, and a new sub-pixel localization algorithm for line and arc was put forward. Through image preprocessing, edge detection...

With the increasing number ofvehicles, the vehicle parking difficult has become an urgent problem to be solved. This paper will apply Floyd algorithm to the system of underground parking lot location and navigation, which aims to solve the owners parking, find car and parking management problems. To...

An algorithm based on the primary star, called the two-step matching algorithm, is proposed. The recognition characteristic of this algorithm consists of angular distances between the primary star and its neighboring stars, and the directions of neighbor stars. This algorithm uses star map information...

High temperature SAW resonators were fabricated on YCa4O(BO3)3 substrates with cutting type of X-90° and Z-90° and langasite substrates with Euler angle of (0°, 138.5°, 117°) and (0°, 138.5°, 27°). The temperature characteristics of these resonators have been studied in this paper. The results show that...

According to the high speed visual inspection requirements of steel cord pieces cut by steel cord body ply cutter( produced by a processing plant ) about edge size and angle, this paper proposed a new method of edge detection based on line fitting method. The method solved the error problem of steel...

This paper introduces the structure and principle of the capacitive corn moisture sensor, and focuses on the mathematical model and the equivalent circuit of cylindrical corn moisture sensor, also conductes a preliminary analysis of the factors affecting maize water measurement accuracy, provides a theoretical...

Structural health monitoring of large civil engineering has been a hot point of research in the world these years. As one of the key parts, design and implement of structural vibration data acquisition system in actual projects is more and more valued for people. Monitoring technology as the core of...

This study evaluates the impact of assimilating Infrared Atmospheric Sounding Interferometer (IASI) radiance observations in the WRFDA system on the numerical weather prediction of typhoon Hongxia (2015). The IASI observations are quantity controlled and variational bias corrected in the assimilation...

Based on the multi-agent technology, this paper presents the optimization process of power agent, user agent and government agent in detail. Combined with the principles of consumer psychology, this paper simulates the user response to the electricity price, outputting response curve and obtaining a...

Expanded polystyrene(EPS) is a new type of thermal insulation material with excellent properties. It is widely used in the field of external wall thermal insulation, packaging, advertising and others. It has become a hot spot in the field of plate processing that how to optimize EPS board line cutting...

In recent years, the wearable devices are attracting more and more interests because of small volume, portability, multiple functions. However, such devices haven't had a significant development. One of the reasons is that the battery can't provide long time power supply due to the size and functional...

Indoor location has become an active research area and developing direction in the last decade, and BLE method is commonly used in indoor positioning. This paper mainly presents an indoor location system based on Bluetooth by using the method of region division and fingerprinting. The experimental results...

Detecting maximum inscribed rectangle on irregularly shaped raw material is a key problem of cutting and nesting process in natural stone production plant. The present ruling method is the artificial realization, and has the disadvantages of low efficiency, poor utilization rate and so on. Based on the...

Optical fiber sensing technology has been shown to advantage in physical testing. In terms of chemical content and biomass detection, its specificity and flexibility cannot meet the demand of the rapid development of biology, chemistry, due to the material, structure and process of bondage. At the same...

The spin-valve sensor has been widely used in automotive electronic systems, industrial control systems, medical equipment and other technical fields, due to its advantages of high sensitivity, low energy consumption, as well as small size. The sensitivity of the spin valve sensor is affected by temperature,...

The focus of the patent portfolio design lies in how to use the relevant patent portfolio tool to convert knowledge of the company or the patent to the activities of commercial value. It is important particularly to realize the target company with the matching degree of patent portfolio value. The paper...

A sensitive in-situ oil measurement scheme in seawater, consisting of the optical system, the photoelectric detection circuit system, the data acquisition and control system, is proposed to facilitate the measurement of the oil in seawater. It has long been supposed that there must be a linear relation...

Graphene nanosheets (GN) were efficiently prepared through one-step liquid-phase exfoliation of graphite powder, and then used to modify the surface of glassy carbon electrode (GCE) by drop to form a GN/GCE nanointerface. Subsequently, 4-amino-5-cyano-2-mercapto-6-phenylpyrimidine (ACMP) was electropolymerized...

Zn1-xMnxFe2O4(x=0, 0.15, 0.25, 0.35, 0.45, 0.55, 0.75, 0.85) ferrites were synthesized by sol-gel combustion method with citric acid as complexing agent, and mole ratio of metal ions and citric acid is 1:1. All samples were sintered by 550 . The structural and magnetic properties of MnZn ferrites were...

Polystyrene foam (EPS), commonly known as benzene board, foam board, is widely used in architectural decoration, road construction, the film set, a lot of fields such as packaging boxes, has a broad market need and the use value. For EPS plate mainly have three kinds of different processing ways: the...

Samarium ion substituted magnesium of Ni0.5Zn0.5SmxFe2-xO4 spinel ferrite powders have been prepared by a sol-gel auto-combustion method. XRD results indicate that the production of a single cubic phase of ferrites. Some particles are agglomerated due to the presence of magnetic interactions among particles....

Aiming to the problem that the battery energy of the node is limited and not easy to be replaced in WBAN, this paper proposes a new node sleep strategy based on compressed sensing and sparse representation theory (NSS-CS), which using the compressed sensing theory to compress the test samples, and adopting...

The best is to read these instructions and follow the outline of this text. Urbanization is the process of regional population structure adjustment caused by productivity development, scientific and technological progress and industrial structure adjustment, which is also the inevitable result of the...

The purpose of this paper is to explore agent action map oriented intelligent simulation system model used in emergency management. This paper establishes the concept of agent action map and thus designs agent action map oriented intelligent simulation system. It further presents a method in transforming...

A readout circuit for capacitive pH sensor is designed and simulated by Spectre of Cadence software with TSMC 0.18 m CMOS process technology. It consists of a capacitance-voltage measuring circuit, a modulation and demodulation circuit, a instrumentation amplifier and a low-pass filter. The simulation...

Energy internet, the results of deep integration of the energy system and the internet, is an important infrastructure to solve high-permeability of renewable energy generation in the future grid. Energy Local Area Network (ELAN), a network consisting of an energy router and its attached multiple end-users,...