Linear diffraction grating interferometer measures displacement via two orthogonal signals generated from the optical outputs of fringes. Due to noises and regulation errors, two signals are not perfect. This paper presents a precision measurement method of displacement for given two non-orthogonal signals....

With the continuous development and progress of computer technology, physical education has been greatly affected by computer Guidance systems in physics teaching can improve students 'interest in learning, improve students' attention. It begins with a simple analysis of the computer system operating...

The light is the necessity of life for everybody. When the night comes, it is very inconvenient to turn on the light in the dark. And when the person leaves the house, he often forgets to turn off the lights which will cause huge waste of energy. In view of the lighting control method of classrooms,...

Apparently, management of portfolio is focused on developing optimal and superior investment plan for investor. Furthermore, managing the fund allocation of investor on different alternatives facilitates minimising the risk in comparison to fund investment within a single investment fund. Concerning...

With intelligent greenhouse computer, network, electronic, automatic control, and other high-tech means to achieve automatic detection and control of plant growth small environment temperature, humidity, light, soil moisture, ventilation and other environmental parameters, breaking the traditional agricultural...

Nowadays, with the improvement of people's living standard and the development of social science and technology, a considerable number of households equipped with a bathtub apparatus. Bathtub can clean and relax the body simultaneously. It is also a good way to makebloodcirculationmore smoothly, promotetheelimination...

Nowadays, stationary dustbinis unable to meet the needs of movement disorder patients. This paper describes a kind of medical intelligent dustbin.After the patient in a hospital bed press the button, the dustbin can reach the specified location steadily and swiftly along the presupposed routine. The...

With the development of economy and technology, computer network plays in people's lives more and more important position, while security problems caused by the network more and more attention has been paid each year because of network security issues, such as hacking, virus infection economic losses...

Power Quality Improvement premise is to obtain accurate power quality real-time information. In order to achieve the targets more accurate real-time monitoring of power quality, paper LabVIEW graphical software platform for the development, design real-time power quality monitoring and analysis system,...

EGR system is electronically control system for exhaust gas recirculation. This article conducts a detailed research on the EGR control stagy by a systematical elaborate on development procedure, a profoundly discussion to the components and structural software design, an overall consideration to the...

As tourist industry has developed rapidly in recent years, the proportion of tourist hotels in Chinese tourist industry increases gradually. The number of high-star tourist hotels increases stably. International major brands expand by a large margin in Chinese tourist industry, which generates certain...

As China's economy has maintained a high growth rate for a long time, the demand for electricity is increasing year by year, so we should pay enough attention to the power dispatch work. Combination in recent years our country electric power dispatch the actual situation and the author for many years...

With the vigorous development of the Internet, more and more people use the network, the computer network to provide convenience, bring benefits, but also make the human face a huge challenge of information security. In the form of the development of modern information technology, a safe network system...

When the vehicle reversing of the visual blind spot or may have obstacles, prone to traffic accidents such as collision. This article uses the distance sensor and steering angle sensor for real-time monitoring of the vehicle when reversing, based on establishing vehicle reversing trajectory mathematical...

With the expansion of affecting area of e-commerce ,the enhance of purchasing power and the characteristics of goods make our return defective merchandise more and more serious, which directly affects the validity of the operation of the online sales channel inventory control. In this paper, with out...

Image measurement as the main method in sport biomechanics kinematics research, the main principle is the photography technology in does not affect the athletes training and competition of a non-contact quantitative measurement. Then through the use of a variety of software on the image processing and...

Sign language, for deaf-impaired people, plays an important role in communication. In this paper, we devise a Taiwan Sign Language recognition system. We use the Kinect2 sensor to get data from 94 sign morphemes shown once by 4 people, and extract hand shape features and trajectory features from depth...

With the rapid development of all the modern IT and as well as people's living standards improve, there is higher requirements of their environment so that smart home emerged. At present ,air pollution is more and more serious,it has affected people's normal life. In this modern world, people pay attention...

Aiming at the difficulties of high-precision position and orientation system in aerophotogrammetry system, drift error in traditional Strap-down Inertial Navigation system, noise characteristic mutarions in integrated navigation system, an algorithm based on IMM-SINS/GNSS Kalman filter is proposed. The...

In wireless sensor networks, traffic load moment node are changing ;the basis of CSMA protocol for idle channels not do effectively. To address this problem, analysis the lack of basic CSMA protocol, in order to improve the utilization of CSMA protocol idle, we come up with a new protocol which is the...

Computer security has been attracting more and more attention ,since intrusion detection have become a significant threat in recent years. The techniques for intrusion detection are generally classified into two categories, which are anomaly detection and misuse detection respectively. In this paper,...

The mathematical problem of the changes of the shadow length of the straight bar according to the passage of time can be solved by transforming the problem to solve the sun elevation angle corresponding to the time. The sun elevation angle is determined by the local time and Sun's declination. By using...

The current urban air quality is deteriorating. Especially in northern China, air quality has become a hot topic. How to improve indoor air quality raises our interests. Our research team hasdeveloped the device switches the anti-haze window automatically under WIFI control by using filtering screens,...

Micro droplet dispensing has great potential in biopharmaceuticals, drug screening, printed electronics and other fields. Its distribution speed, size, and direction is the main factor affecting the quality of the distribution, but it is too difficult to monitor these parameters above when the droplet...

Pedestrian Detection is a hot topic in recent years, which is attracting a large number of scholars. The detection models are developing from simple models to complex models and the detection accuracy has been greatly improved. DPM(deformable part model) become the best pedestrian detection model and...

Aimed on the problems of control of the whole SMT production line, the technology of material management and control of the production preparation execution in SMT production line based on digital recognition is proposed. Firstly, the framework of this technology is constructed. Then the three key technologies,...

Frequently overshoot phenomenon is appeared in the regulation of active power of some areas, which is not conducive to the reliability and economy of power grid. The reasons of overshoot are discussed and improvement measures are proposed.

The design is based on ZigBee network communication module, which is mainly composed of power supply, master control, display, temperature acquisition, key control section, howler alarm and so on. It mainly uses ZigBee network to monitor the temperature value of collection point. The temperature is collected...

Specific Emitter Identification (SEI) is the method to identify the individual radio emitter using the transmitted signals' characteristic called Radio Frequency Fingerprint (RFF), which are originated from transmitter imperfections. A novel SEI approach to extract transient fingerprint features of energy...

As the nucleus of driving the fault diagnose' virtual simulation training and the semi- physical simulation training,Fault Diagnose Describing Model has been one of the hotpots nowadays. However, regarding the different machine different style fault diagnose, different machine same style fault diagnose...

Wireless remote control robot car could play a special role in the hazardous environment operations and search & rescue personnel. A multi-function smart car with Bluetooth remote control is selected as my graduation thesis subject. The design of the system hardware circuit schematic and PCB diagram...

Now, the highway toll system still uses a single license plate recognition, this method has a problem of inaccurate identification. For this kind of situation, this paper put forward to increase the appearance of the vehicle feature information and can improve the accuracy of recognition. In this paper,...

In this paper, we introduce a fast method for rectangle detection. For any object has closed curve in a digital image, it is easy to calculate the geometrical center of the object. Hence conveniently find its width and length, area, diagonal line length, etc. If the closed curve is really a rectangle,...

In this paper, an iris recognition algorithm of multiple features extraction and fusion was proposed, which was different from the classical iris recognition algorithm that focused on a single texture feature. Firstly, the collected iris images were preprocessed. Secondly, features of preprocessed images...

Tea has always been China's traditional agricultural crops, and is one of a large number of agricultural exports. However, in recent years, China's tea exports encountered the biggest problem is pesticide residues,developed countries or regions to limit pesticide residues in tea standards have hindered...

Permanent Magnet Synchronous Motor (PMSM) has been widely used in many fields for its advantages of small size, high efficiency, simple structure and low noise. In order to further improve performance of PMSM, it is necessary to do further research of its control strategy. Therefore, this paper mainly...

This paper mainly studies the technology of accurately positioning the imaging position through the changes of shadow length in video. 3D modeling software SketchUp is applied to conduct hidden line processing on images and obtain the actual shadow length of objects in the video. Take into account the...

With the rapid technological development of surgery robots nowadays, however, there is not scientific assessment system to accurately and objectively study on operation proficiency of surgery robot user. A scientific and precise comprehensive assessment model is established on a scientific assessment...

In this paper, we mainly use the solar zenith angle, solar azimuth angle, the angle of the red and weft, the relationship between the date sequence number and some specific geometric relations. The formula is related to the concept of the degree of latitude and the time angle, which can be defined as...

Piezoelectric ceramic as a driver is applied to the deflection of nose, which is a kind of frontier missile control mode. In order to improve the efficiency and reliability of deflection mechanism, a design scheme of the control mechanism that piezoelectric ceramic actuator combined with improved PID...

This article elaborates monitoring system features, development status and technical features systematically, analyzes the needs of traffic monitoring systems and design appropriate solutions. Technologies of this system is J2EE based Java and MVC. This system considers the performance of traffic monitoring...

The knowledge of degree of freedom (referred as DOF) is indispensable before a parallel mechanism is designed, but the traditional Grubler-Kutzbach formula (referred as G-K formula) which is widely used is not appropriate for complicated mechanism, especially the hexapod robots. In order to derive the...

The tilted visual angel of the camera determines that incline will inevitably occur in vehicle license plate (VLP) recognition system. This will bring about difficulties to the following character segmentation and character recognition. Traditional correction methods can receive high accuracy hardly...

As we know, the recognition of lunar terrain is the beginning of the lunar research. Therefore, an accurate and effective automatic recognition of lunar terrain is an integral part of lunar research. This paper has proposed an improved recognition algorithm for lunar terrain based on gushing and immersion....

The article takes integrated visualization of IoT (Internet of Things) monitoring data and friendly user interaction as research objects, relying on the IoT platform aggregated by lightweight business, to research on how to turn the heterogeneous data collected from various sensors to synthetic situation...

The development and application of industrial robots is the inevitable trend of the social development of science and technology in 21 century[1].This report mainly describes a new humanoid biped robot based on STM32 SCM and sensor system.It is characterized in that the structure is light through the...

This paper develops a geographical exploration technique for detecting obstacles of trenchless engineering by integrating cross-hole seismic tomography and horizontal directional drilling (HDD) technique. Firstly, several small-diameter holes along underground engineering are drilled, and Polyethylene...

Electron beam rapid prototyping has the advantages of high efficiency, various processing materials, non-pollution and flexible control, and it is the main trend of mental materials rapid prototyping. However, as electron beam rapid prototyping technology starts lately and develops poorly, some problems,...

This paper mainly designs a multi-purpose industrial timer that based on STC89C51.The multi-purpose industrial timer uses the calendar chip DS1302, LCD TS1620, buzzers and other devices. The design uses a C language programming, including liquid crystal display program, calendar program, key scanner....

This paper describes the development of the smart home intelligent switch system and the necessity and convenience of the office,The intelligent switch can be connected to WiFi network to control appliances through mobile APP, what get people generally favored is its small size, convenient operation,...

With the development of digital blasting, research work of digital blasting vibration measurement in recent years has become a hotspot in the field of engineering blasting. Research progress in hazard remote monitoring technology and platform of domestic engineering vibration of blasting vibration were...

For the non-linear relationships of main influence factors of slurry pipeline safety status and the confusable problem of slurry pipeline safety status, this paper used the cross validation method to select the optimum parameters of the kernel function and combined the support vector machine to diagnose...

To solve the problem of extracting and locating the manual circular marks from complex background in the image of range visual measurement, two kinds of extraction methods of circular manual mark were studied, one was the interactive extraction method based on region of interest and the other was the...

Research on the hybrid electric city bus which is produced by a company, using virtual prototyping technology in the simulation software ADAMS/Car to establish the vehicle dynamics simulation model and road simulation model. And the vehicle model for the random road input ride performance simulation...

In order to improve the automation of industrial production and production efficiency. This paper presented a system with the S7-200 as the core. The system adopted the method of sequence control. The S7-200 mainly controlled the step motor, dc motor, servo motor, Through the control could realize manipulator...

Quadrotor Unmanned Aerial Vehicle is a kind of UAV, which is disturbed easily and has nonlinear and strong coupling characteristics. In the paper, the model of Quadrotor Unmanned Aerial Vehicle is presented, then the adaptive sliding mode control laws is designed based on the model. And the disturbance...

Considering the current situation of the coal mine accident in our country. An intelligent gas monitoring system which has some prediction function is put forward in this paper. In the system, the microcontroller monitoring substation and CAN bus communication system is designed; a prediction method...

The dynamic performance of the empty case is worse than the loaded case to the railway freight vehicle in general. The gap damping idea is referred to be used to improve the ride index of the three piece mid-cross bogie vehicle when the friction damper force is downed in this paper. It covers stable...

In order to solve the problem that conventional single IPC tester exists a universal machine a difficult test, a large space and other issues, the researchers designed a new fuse covers a variety of common tester, according to several types of fuses and general target test tester itself different actual...

Biogas is deemed as a kind of superior and renewable resource. It is urgent for Supervisory Departments to adopt a real-time monitoring system which may process data promptly so as to reduce the potential danger and improve the level of automation. In this paper, an intelligent biogas digester monitoring...

With the rapid development of social economy, Science and technology level are increasingly improving, especially accelerated pace of life, People demand for fireproof, anti-theft and anti-gas equipment is greatly increased, and for theft, fire and other accident monitoring and alarm system requirements...

Urban traffic is a real-time change, so the traditional serial algorithm cannot satisfy the requirement of traffic scale and condition changes. Therefore, this paper proposes a improved non-dominated sorting genetic algorithm for route optimization problem of multi-objects. Firstly, through the analysis...

Node positioning system can quickly determine the position of the multiple nodes. On how to improve the performance of multiple nodes localization, multiple nodes localization algorithm based on integration of subframe estimation and cluster analysis is proposed. First, a signal is divided into 8 subframes....

With the development of science and technology, intelligent products becomes more and more popular. Alcohol concentration monitoring system based on the MCU STC89C52 and gas sensor has many functions such as alarm by sound and light LCD display function and so on. The system can set different thresholds...

In the industrial, agricultural production and daily life, the measurement and control of temperature occupy a very important position. In this paper, it mainly introduces a kind of temperature measurement system which can be collected at multiple points, and the collected data can be transmitted to...

The Smart parts are the trend of the development of IOT, which means the parts have the wisdom nodes, and use wisdom nodes to record all kinds of parts description information or run state. Smart parts can to solve the smart device access, control, and information conversion and transmission problems...

In order to simulate the dynamic characteristics of small hydropower group more accurately, a method of dynamic equivalent for hydropower generator group use phasor measurement information is proposed. Using the idea of weighted aggregation, aggregate parameters identified in different temporal and spatial...

In order to make the dynamic equivalent method for hydropower generator group based on phasor measurement information more suitable for the actual grid. A index use tie-line power oscillation to evaluate disturbance intensity is presented .Based on this index, consider disturbance location and it's distance...

Wide-area PSS (power system stabilizer) and HVDC (High voltage direct current) modulation are effective damping controllers in power system. With conventional parameter tuning method, the damping of the non-dominate modes would be impaired or new poor damping mode would be triggered. In this paper, the...

Motor control system has a simple structure, reliable operation and easy maintenance, etc., across the range of applications, including industrial sector. As a single-chip processor motor control system greatly reduces the cost, but also greatly simplifies the wiring of the PCB, PCB layout makes it easier....

A servo control system and servo position signal acquisition system based on PHILIPS ARM7 series kernel LPC2292 were designed. The principle and construction of the position control module was discussed in detail. The accuracy of controlling system was verified using Matlab code. Results show that the...