In many practical applications such as biomedical signal processing, it is often desirable to extract one or a few source signals instead of all signals. The classical FASTICA algorithm can extract a source signal which has the maximum negentropy of all signals. However, the extracted signal is not necessarily...

With the maturity and popularization of the technology of power electronic transformation, the power drag, rectifier circuit is used in great quantities in the application fields such as power system, which is including diode uncontrolled rectifier circuit, voltage type PWM rectifier circuit. To stabilize...

The basic structure of the optoelectronic oscillator is based on photoelectric hybrid feedback loop; the optical signal is converted into the microwave signal directly. Laser as a power source, is a continuous light. Laser through the electro-optic modulator, optical fiber delay line and photoelectric...

The photocell and photomultiplier has become a piece of very important photoelectric conversion device and photoelectric emission device, it plays a decisive role in optoelectronic devices. The photomultiplier tubes can be applied in the field of the weak light signal detection, and is the core of a...

Due to the technology and the technology relatively mature, the monocrystalline silicon has been the preferred substrate material in the research of photoelectric device. Compared with the difficulty of traditional inorganic semiconductor materials processing and high production cost, the molecular organic...

The laser synchronization to reach targets synchronously is an important index for measuring device integrated performance parameters, also is related to inertial confinement fusion (ICF) physics experiment parameters successful. In the ICF research, the multiple laser pulse need not only waveform and...

The example of three-phase bridge controlled rectifying circuit discussed the method of the utilization of MATLAB SIMULINK on the modeling and simulation of power electronic circuits, and gave the simulation result waveform, verifying the convenience, intuition, high-efficiency, high speed, genuineness...

Network management is a way of network management, the network can be properly efficient operation. Its purpose is to make the network resources more effectively use. Wireless sensor network management refers to the process control of a complex sensor network so that it has the highest control ability...

A management system according to ZigBee requirements of wireless sensor networks and wireless sensor network ZigBee system with heterogeneous node method, the general structure of the ZibBee wireless sensor network management system is designed.

The paper proposes a remote intelligent automotive monitoring system based on GSM network and designs the hardware and software work after designing the system process. PC automotive monitoring center, MCU, peripheral interface circuits and GSM communication module which used to relate PC and MCU are...

A secure solution based on IPSec is proposed for smart substation. It uses the loose coupling strategy in the mode of IPSec to realize the safety transmission of different packet in the substation, according to the different performance requirements and the requirements of the transmission time of smart...

In this paper, we propose a novel AC signal detection approach to DC power system. Combining with state-of-the-art detection circuit and WNN(wavelet based neural network). Aiming at handling with the travelling wave and fault signal cannot be detected accurately with the uncertainty of signal velocity...

Polar codes represent an emerging correcting codes with power to approach the capacity of a discrete memoryless channel. However, the decoding performance of polar codes with traditional successive cancellation (SC) algorithm cannot match that of the low-density parity-check or Turbo codes. In this paper,...

An air purifier is made by temperature, humidity, smoke, carbon dioxide sensors and wireless communication network to the monitoring of the air quality. The obtained parameters compare with standard data to decide whether automatically run the device to generate negative ions or not. Meanwhile, the real-time...

This paper investigates the construction of 8-QAM+ perfect arrays with at least an odd integer in their sizes, and gives the sufficient condition producing distinct 8-QAM+ perfect arrays. For different choices of odd integers in a given size of at least an odd integer, the resultant distinct 8-QAM+perfect...

In this paper, the PID parameters of flight controller are tuning by artificial bee colony algorithm. Respectively, PID control and simulate the laws of pitching-pose-holding-mode and rolling-pose-holding-mode, which compared with the conventional PID control. The results show that the artificial bee...

It's feasible to counter radar shutdown with passive radar guidance head/strapdown inertial navigation integrated system. Gyro inertial component has problems of high costs and gyro drift, so the paper discusses application of gyroscope free strapdown inertial navigation system (GFSINS). At first, a...

Aiming at the low generating efficiency of the current solar energy generating system, solar energy maximum power point tracking control system based on STC89C52 is designed and made. The photoelectric detection and tracking is adopted as the control mode in the system. By using stepping motor as driving...

The mass sensitivity of the quartz crystal microbalance is analytically calculated for various configuration and various thickness of electrode. The data indicated that both the configuration and the thickness of electrode are influence the mass sensitivity. For the conventional electrode structure,...

Based on Ethernet, LXI is a new generation modularization equipment platform standard. Comparing with GPIB, VXI and PXI buses, LXI bus provides many more advantages, such as networked, lower price, higher performance and smaller dimension. This article makes a full introduction of LXI bus and its key...

In order to solve the problem about the clock synchronization and high precision in the TDOA location system, a clock synchronization scheme was designed. In the article, the GPS+TCXO clock module was used as the front end of the reference clock source, and the PLL + clock buffer solution was used in...

A kind of ZMP measure system has been described in this paper, tests have been done on person with the system. The obtained experimental ZMP trajectory has been analyzed and real-time performance of this system has also been verified. So, the result has shown that the system can be implemented on our...

In order to promote the development of intelligent agriculture in our country, this paper puts forward a wireless remote monitoring system of water quality parameters which is based on Android mobile phone platform and GPRS communication technology, the system realizes the remote collection, storage...

According to the launch control principle, application features and testing requirements of a certain type aerial rocket launcher, a detection system is designed based on PC/104 embedded computer. The realization method, the configuration of the software and hardware is explained in detail. The hardware...

A new control method based on disturbance observer (DOB) is proposed to control the integral processes with inverse response and dead time. The main contribution of this paper is that the optimal analytical result in terms of H2 for the set-point controller and the disturbance observer are provided....

When using GPS carrier phase differential technique for dynamic positioning, the traditional LAMBDA (Least-squares AMBiguity Decorrelation Adjustment) has shortcomings in the existence of iteration, long solving time and large amount of calculation for decorrelation processing. Based on the rapid ambiguity...

A digital built-in calibration (BIC) system is presented to automatically adjust the linearity performance of a tunable RF low-noise amplifier (LNA) operating at 2.4GHz. In this paper, we conduct research on optimization and ascension of target accuracy for RF systems. To minimize the area and power...

This paper mainly analyses the necessity to manage the explosive in the coal mine blasting equipment library. It make intelligent management possible by using digital monitoring technology, communication technology and software technology and sensor technology for reference; using high performance microcontroller...

In this article, we introduce one kind of pulse monitoring system which based on IOT(Internet of things) and used for monitoring the patients’ condition. First of all, the pulse sensor gather the pulse information of a patient and send the information to the pulse signal transceiver. Then the pulse signal...

50Hz power frequency interference is the main noise of ECG signal. It is harmful to automatic detection and the classification of arrhythmia. Therefore, it is essential to reject 50Hz interference in the preprocess of ECG signal. This paper develops a 50Hz notch filter based on LabVIEW. The notch filter...

A certain type of command and control system testing and training platform is designed in order to realize clear display of the operation, implement of the capability teaching, testing and fault diagnoses conveniently. This thesis which is a part of the program introduces the design and realization of...

On the basis of full analysis of gas detection instruments, the use of DSP and ultrasonic technology to design a new type of gas concentration detection system. DSP is the core of the whole system, mainly complete the DDS chip sequence control, special A/D sampling control and external FLAS H and SDRAM...

In this paper, the GPS global positioning system, Polar wearlink and imaging technology, the combination of a set of software and hardware system, applied to the long distance bicycling training, it aims to get the information in training, including the video track, speed, heart rate and other parameters....

This control system adopts Siemens S7-400 PLC to realize these functions of monitoring ambi-room pressure by the vacuum gauges and manipulating all vacuum valves in real time etc. The ambi-room control system belonged to unworthy man guard equipments has severe control request of "absolute safety", so...

This paper deals with the research on conditioning and filtering scheme of weak signals for the micro-positioning-stage and its measurement & control system. Through the analysis of the general filtering scheme of the weak signals, and the combination with the performance index of the system, this paper...

This paper deals with the monitoring system based on ZigBee wireless sensor network technique in details. The system adopts single-chipped microprocessor ZIC2410 radio frequency chip. By the upper computer software and programs of various physiological data acquisition, the physiological data of warded...

The paper deals with the monitoring system based on ZigBee wireless sensor network technique in details. The system adopts single-chippedMSP430 and CC2530. The paper mainly introduces hardware circuit design of processor module, data acquisition module, and wireless communication module. The monitoring...

According to the characteristic of instantaneous, non-stationary and non-linear of the vibration signal, wavelet packet energy feature extraction is proposed, and the theoretical foundation of this method and concrete implementation method is explained in detail. Finally, the relations of characteristic...

To realize point to point communication between two devices with a long distance, this paper designs a wireless video transmitting module working at 1.2GHz and a data transmitting module working at 433MHz. We also write a control program using MFC (Microsoft Fundamental Classed). At last, the system...

This paper mainly analyses the necessity to manage the explosive in the coal mine blasting equipment library. It make intelligent management possible by using digital monitoring technology, communication technology and software technology and sensor technology for reference; using high performance microcontroller...

The forest is deemed as a precious and indispensable ecological resource, but forest fire which is of common occurrence all over the world can destroy forest resource and threaten human-living environment. It is urgent for Forest Fire Prevention Departments to adopt a monitoring system that can predict...

The slurry column reactor has the most promising prospect in FT synthesis. In this paper, the gas distributor developed for slurry column rector was analyzed to find an improved gas distributor with small energy consumption, good distribution performance and the good characteristics of preventing backflow....

A novel method based on wavelet transform and k-means is proposed to solve the problem of automated fabric defect detection which is more essential and important in assuring the fabric quality. Firstly, the fabric images are processed using wavelet decomposition algorithm, and the produced wavelet coefficients...

In this paper, a general analytical calculation of dc-link current and voltage ripple is presented for three-level three-phase neutral-point-clamped voltage source inverter (3L-NPC-VSI). Based on the analysis of average dc-link current of the upper and lower switches, the low-frequency oscillation of...

Hardware implementation has been proven to be an effective way to take full advantage of the parallel and distributed computation ability of artificial neural network. To simplify the hardware implementation process of different kinds of neural networks, a modularization and digitization implementation...

In this paper, the design of real-time radar signal acquisition system based on domestic PCI8001 data acquisition card was introduced. By DMA, interrupting collected data was written to the industrial control computer with windows XP system. The technologies of multi-threaded processing, north error...

This paper presents a novel approach based on probability data association (PDA) filtering for estimating a vehicle’s trajectory in complex urban environments. We consider feature pairs acquired from consecutive frames as the measurements for the PDA filter to update the ego-motion vector of the camera....

For the reality of thermal power units and the training needs of operating crew, introduce the PID regulator on the thermal power plant simulation machine. Depending on the various needs of simulation modeling, introduce the PID regulator control algorithm and some auxiliary functions. Through simulation...

A model illustrating the gas-liquid two-phase flow (GLTF) of slug raw-milk in micro tubes was built, and an infrared-curtain-based sensor was designed for non-contact recognition of raw milk in GLTF. An infrared curtain signal acquisition site was set at both upstream and downstream for analysis of time...

The resonant tunneling diode (RTD) has attracted much attention because of its unique negative differential resistance (NDR) characteristic, RTD increases the powerful logic function of a single gate and is more suitable to implement the threshold gates. Recently, the generalized threshold gate (GTG)...

This article is about optimization of connecting rod wheeled robot, connecting rod wheeled robot platform can be well adaptive terrain, on regular ground velocity structure near wheeled platform. On the road barriers, independent walking mode switching, efficient obstacle. In this paper, the structural...

As a typical hierarchical routing algorithm in wireless sensor network, LEACH protocol can reduce the routing overhead greatly. And it makes the network load balance relatively and have a good scalability. But there are still many deficiencies, such as the uneven clustering, unreasonable cluster head-selection,...

A novel meander dipole antenna for passive UHF RFID tags, composed by normal meander dipole combined and ameliorated T-match network, is presented ,simulated and fabricated to be excellent performances, and suited accurately to complex impedance matching to the embedded microchip. Particular optimization...

The rigorous requirement for safety, reliability, maintainability, and miniaturization in microminiature unmanned aerial vehicle (UAV) has motivated significant research in new technology. A dual redundant fault-tolerant flight control platform is designed based on the technology of system on a programmable...

This Paper presents an algorithm to optimize high-level culling for self-collision test of arm cloth grid. High-level culling is at the triangle level, to cut off non-colliding areas and triangular pairs and obtain all possibly colliding triangular pairs. Here, we processed basic high-level culling firstly...

In order to implement high precision time synchronization autonomously in the absence of any external time source, in this paper, the author introduced the synchronize model of fireflies into UAV formation network, and proposed a kind of distributed time synchronization methods based on broadcasting,...

In this paper, a class of complex-valued neural networks with time-varying delays is considered without assuming the differentiability of the time-varying delays, and the exponential stabilization for the considered neural networks is investigated. By constructing proper Lyapunov-Krasovskii functional...

In this paper a 6-path tunable bandpass filter which is able to reduce both Harmonic Selectivity (HS) and Harmonic Fold Back (HFB) effect simultaneously is proposed. The filter contains two channels of 6-path switched capacitor filters with same circuit structure but different clocks and is designed...

Due to the mutual coupling of conformal array cannot be ignored, this article proposes a simple compensation method for the mutual coupling compensation. The method calculates he far field direction diagram of the array by Simplifying array element classification, and then obtains the correction with...

The frequency and micro scale characteristics of data transmission in smart phones increase the frequency of occurrence and proportion of tail energy, which decreases the utilization rate of transmission energy. In this paper, an aggregate-based energy saving data transmission mechanism (A-ESDT) is proposed,...

Conventional security monitoring of civil airport usually uses fixed cameras to acquire images. There are several problems with performance including difficulties introduced in the information transmission, storage, and analysis stages of the process. Insect compound eyes offer unique advantages for...

In order to test the function of the SDU module in the static environment, we design the simulative speed sensor by studying the principle of the speed sensor. We confirm the function requirements and the parameter of the simulative speed sensor by testing the speed sensor. According to the requirements,...

Because of the complex environment of the underwater noise and the difficulty for detecting the failure of the underwater sensors, a distributed filtering algorithm for the nonlinear target is proposed by applied the unscented kalman filter into the federated filter frame. Furthermore, the information...

How to correctly segment frames from bit-stream of unknown link-layer protocol is an important issue in the field of information security. Sync-codes identification is the essence of bit-stream segmentation, while the key of sync-codes identification is mining features of sync-codes distinguished from...

A cost model is proposed to achieve the wavelength allocation criterion in WDM/TDM PON in this paper. By the cost model, the optimal number of wavelengths allocated can be evaluated in order to be up to the most cost-effective system state. The simulation results demonstrate the correctness of the above...

Identifying various types of aluminum wheels was traditionally performed manually, which could result in low efficiency, limited reliability, poor accuracy, and high labor cost. This paper presents the design and implementation of an on-line automatic recognition system for aluminum wheels based on laser...

To meet the dual-band requirements of satellite communication systems, a novel rectangular dielectric resonator antenna (DRA) is presented. In general, most of the rectangular DRA is fed by slot coupled with microstrip line. But when the antenna is placed on a metallic ground according to the actual...

this paper designs construction model of data base based on learning algorithm of C4.5 by combining with characteristics of railway signal system in China, meanwhile, it makes research and design on inference machine, explanation mechanism and human interface in expert system of fault diagnosis. It puts...

The drug quality safety is a issue that governments have attached great importance to. The Chinese version of the CMP puts forward strict requirements of " traceability " in the pharmaceutical production process for the pharmaceutical industry.This paper mainly introduces how to realize the electronic...

When the welding robot receives task instructions, it needs for trajectory planning of welding robot, in order to improve the work efficiency, welding task planning can work form he point of view of the joint space and also it can work from the Cartesian coordinate space planning. This paper analyzes...

In view of the adverse effects brought by the noise in mine on the ultra-low signal detection, this article puts forward a hardware circuit design of the receiving system and a phase-sensitive detection algorithm which can improve SNR greatly and optimize the system. In addition, an original coding program...

Because of the constraint of sensor nodes in energy powering, storage capacity, and computing power, in order to use less resource and improve the security of WSNs, we propose a novel key management scheme which relies on the remainder of small integer and the connected graph theory. The key management...

In order to solve the problem of central heating energy wasting and uneven heating this paper presents a novel heat ex-changer(jet heat ex-changer) and designs a new central heating system compared with the traditional central heating system based on this new kind of heat ex-changer.This new central...

In this paper, design and fabrication of a substrate integrated waveguide (SIW) with 14-28 GHz bandwidth is implemented. The SIW-based system with Quadrature Phase Shift Keying (QPSK) modulation and demodulation technique is designed and implemented. The measurement results show that the proposed system...

By reason that traditional GPS location technology can't position items indoor preciously, with the widespread use of the RFID technology, people are taking RFID technology into consideration. However, the features of RFID technology would be an obstacle for researchers and developers. Tag reader can...

The polarization properties of the key components of armored target have been researched in this paper. As a new target detection method, the polarization imaging detection can overcome the deficiencies of the traditional detection method in distinguishing the details of armored target. Firstly, make...

This project about how to implement space division multiplexing access technology in free space optical communication is presented. It works in fixed beams switching mode and consists of optical lens based on fiber array of focal plane and optical matrix switch. Based on angle, by setting up the gateway...

The cooperative diversity technology in code division multiple access system is studied in this paper. Some mobile terminals relay signals for each other so as to achieve the spatial diversity gain. The cooperative scheme in the mobile terminal is discussed. The uplink system model, as well as the receiving...

The sawtooth wave oscillating circuit was proposed on order to overcoming shortcomings of traditional oscillator. This paper designed a CMOS sawtooth wave oscillator and achieved a good stability. The CMOS sawtooth wave oscillator use TennerEDA 0.25 m process library under the environment of typical...

The establishment of the kinematics model for robot, including of direct kinematics and inverses kinematics, which is the base of the application of the robot. This paper presents the kinematics model of the six revolute joint robot. Through analysis position with D-H method, the direct kinematics model...

The move-in-mud robot is a self-supporting type of special equipment working in soil. The existing literature shows that the key issues of smooth working of the move-in-mud robot are that it should have the stable supporting conditions and reliable steering function. However, the test results of the...

Engineering flight simulation platform is an important equipment in research and development of the new aircraft. The high-speed and real-time collection and storage system is one of the important subsystem in engineering flight simulation platform. In order to solve two key problems, which are general...

In this paper a general positioning subsystem that used for several kinds of mobile robot is presented. The subsystem consist of a Optical Fiber Gyroscope(OFG) with high precision and a Orthogonal Passive Wheel System(OPWS) which is combination of Swedish Wheels and Optical Encoders. The OPWS is an independent...

This paper took the phase-controlled rectifying circuit as the research object to introduce the working principle of the three-phase rectifier circuit. Based on the PSIM software to build the circuit, this paper analyzed the working condition of the rectifier circuit under various common fire angles...

In order to improve the performance of fertigation equipment, a fertigation control system based on ARM and C/OS-II is developed. Serial screen is adopted to improve the performance of human-machine interaction, and to decrease the load of MCU. Several tasks related to the control system and fertigation...

A quadcopter controlled by PID which uses STM32 as its main control unit and can achieve autonomous goods transporting and positioning with GNSS (Global Navigation Satellite System) has been designed. To control its attitude, a dynamic model has been describe with the collected data of attitude of quadcopter,...

With the development of ICS, PLC and SCADA systems are interconnected with Ethernet and directly connected to internet, which greatly improve the efficiency of data sharing and introduced in security threats at the same time. Once crack fault occurrence of critical infrastructure will result in casualties...

This paper presents a fault reconstruction scheme based on sliding mode observers for sensor and actuator faults detection and isolation for a class of uncertain nonlinear systems. A coordinate transformation is first designed for the output equation of the system followed by a first-order low-pass filter...

In this paper, we conduct research on the stability analysis and de-noising methodologies for single-chip microcomputer control system. As the sensor technology, microelectronics technology and the continuous development of single chip microcomputer technology for the perfection of the intelligent temperature...

With the rapid development of social economy and science and technology, rfid technology is more and more widely applied in various industries, especially the identification and security industries, entrance guard system as an important unit of the intelligent building is more and more get attention....

In this paper, we design and implement the smart home network system based on the embedded technology. In the smart home system, wireless network technology was applied to the family network has become an irresistible trend. Household system based on network is the connection of all kinds of information...