When using DMA to receive messages, it is necessary to specify the number of bytes needed to be sent to the DMA controller. When the DMA controller receives the specified bytes, DMA transmission interruption is generated. But in practical applications, the number of bytes received by UART is often unfixed....

According to the requirement of high efficiency, convenience and accuracy for the robot, this paper presents a system of multi degree of freedom manipulator based on 12 Series MCU. Through the man-machine interface to control the robot joint motion of the motor, the panel shows the actual position of...

In order to realize the quantitative calculation of large section cable’s thermal stress and thermal strain, the finite element calculation model of cable’s magnetic thermal mechanical coupling field is established, which takes a large cross-section cable fixed with hoops at both ends as a modeling object....

In vehicle-pedestrian impacts, the severity of pedestrian injuries are affected by car hood. The structure and material of the hood is believed that strongly effect on pedestrian head injury. Therefore, the improvement design of hood structures has a great help for reducing pedestrian head injuries....

Due to the anisotropy of sand, the sand will inevitably lead to different patterns of failure under principal stress axes rotation condition. It is necessary to research sand with different deposition angles. However, the existing sand sample preparation device of true triaxial apparatus only can prepare...

The purpose of this paper is to develop a portable anti-bedsore system. This portable anti-bedsore system, which can provide a new way to the prevention and treatment of bedsore. This above way not only suitable for bedridden patients also for long-term wheelchair users. MCS-51 was applied in the hardware...

In order to improve the low-carbon and economic benefits of electric vehicles (EV), this paper proposes a cooperative dispatch model of electric vehicles and wind power. The objectives of the model include the lowest carbon emissions, the lowest cost of thermal power and the lowest equivalent load variance....

This paper presents a new way of structure composition of wheelchair-style lower limb rehabilitation mechanisms to develop a systematic and modularized structure synthesis methodology of exercise rehabilitation mechanisms based on exercise rehabilitation. First, the movement principle of hip and knee...

The transmission path of planetary gearbox is complex and the fault signal can easily be submerged in the noise signal, so a novel method for fault diagnosis of planetary gearboxes was proposed in the paper, which combined the simulation modeling with the sensor signal processing. Through the dynamic...

Consumption data not only constitute the basic premise for analysis of, but also provide the basic reference for production, ordering, storage and supply of maintenance materials. This article designs a handheld terminal of consumption data acquisition, which can greatly overcome the disadvantages of...

A consumption data acquisition and management system is developed to take statistics of actual situations and consumption data of maintenance materials and provide basis for defining the maintenance material standards. The system is explained from the aspects of system function design, system structure...

Apache Spark is an open source big data analytic framework on clusters. It runs on top of Hadoop distributed clusters but faster using in-memory processing. Very often it seems run normally even Hadoop runs abnormally. This paper describes that after install Spark 1.4.0 over Hadoop 2.7.0, how to test...

The quality of trucks has a huge change from empty to fully load; the change of quality highly affects truck’s driving [1]. This paper takes a truck as research object and structured the vehicle quality online estimation model considering LS and vehicle sensor technology; the study set the default value...

The cable-strut-beam belongs to the spatial developable structure, and prestress is an important source of structural stiffness. How to apply prestress depends on the institution's self-stress mode. Firstly, the balance equation of cable-strut-beam is established. Then the self - stress mode of the cable-strut-beam...

Harmony and contrast is the rule that the agricultural equipment design have to observe. Harmony and contrast of the linear, harmony and contrast of the surface, harmony and contrast of the volume, harmony and contrast of the color, harmony and contrast of material texture, harmony and contrast of line...

Taking the rubbish in the campus of Shanghai Electric Power University as the test object, the single-factor and three-factor five-level orthogonal test design methods were adopted to conduct an experimental study on the cleaning performance of the road cleaner cleaning system and obtain the optimal...

The comprehensive evaluation of electric construction project is one of the main tasks in the early stage of the project. In order to accurately embody the nature, content, and scale of the reserve projects, a quantitative evaluation method for reserve projects based on the contribution of power grid...

The small sugarcane harvester is the main model that it is fitted for hilly areas, but it is vulnerable to conveying failure. To breakthrough the limitation of individual harvester`s structural improvement traditionally, Traditionally structural improvement to the individual harvester is not generally...

Due to the different power standards around the world, to the motor and construction machinery export enterprises design and production management more difficult, raising the cost. If in accordance with international standards IE3, producing a series of ultra-efficient motors, power supply to meet world...

In wireless monitoring systems, the program design mode has a great influence on data upload and processing efficiency. In order to solve the problem that data uploading and processing cannot be synchronized in the system, a LabVIEW system design based on the producer-consumer model is proposed. The...

Dynamic characteristics of the hydraulic arm affects the mobile coal sampling robot’s accuracy and efficiency. The complex and varied working conditions put many high requirements on the stability of the hydraulic arm. This paper took the hydraulic arm of the MCYY2000 mobile coal sampling robot as the...

In order to solve the problem of automatic sampling of coal, this paper introduced the MCYY2000 6-DOF mobile coal sampling robot and analyzed its kinematics. This paper first introduced the mechanical structure of the 6-DOF sampling robot, then the forward kinematics equation of the sampling robot was...

There exists distrust in simulation validation all the time. A quantitative approach is proposed to obtain measurable, comparable judgments of simulation correctness. The commonality between machine learning and simulation model validation is analyzed. We focus on the idea of applying cross validation...

The trajectory tracking control is performed for the kinematics model of the mobile robot. The switching term of the traditional sliding mode control law function contains the symbolic function. Because of its discontinuity, it is not suitable to use the switching function in the derivation occasion....

In the existing methods of recognition of multiple human body postures, recognition of human body postures based on wearable sensors has recently become a research hotspot because of its advantages such as simple information acquisition, low cost, and fast transmission. Based on the monitoring data collected...

Accidental falls are crucial causes of death due to injury among the elderly. Many researches about fall detection applied complex algorithms and required heavy equipment. However, these approaches can hardly apply to the elderly’s daily life. In this paper, we employ a six-axis gyroscope that integrated...

When designing an automatic test system, it is necessary to make each electronic test device conform to different test requirements. The most important issue is the system top-level design. The article starts with the three steps of the top-level design: system requirements analysis, architecture selection...

Bearing is an important part of wind turbine. In the past few years, there have been many intelligent fault diagnosis algorithms for it. Support vector machine is one of them. But it also has many shortcomings for fault diagnosis. For example, how to select kernel and parameters makes the classifier...

Aeroelastic response of gust is always an important problem in flight quality assessment. In this study, structure and aerodynamic solvers based on Lagrange equation and Euler equation are coupled with loose coupling method. Elastic general-purpose airplane and a high-aspect-ratio transport airplane...

The blockchain architecture with distributed and decentralized as the main features often face problems such as long transaction confirmation time, low system throughput, and waste of computing resources. These problems are exactly what the traditional centralized architecture can solve. At the same...

The accuracy of overhead conductor temperature model is easily affected by the sampling frequency of current and weather condi-tions. Due to the cost limitation and communication difficulty of the monitoring systems, the current and weather conditions is commonly sampled with the large sampling steps...

A finite element display dynamic model was developed to study mechanical properties of single layer coatings under single solid particle impact, simulating particulate erosion conditions. Four coatings on the same material substrate material were analyzed to determine reduction in additional factors...

WSN is a typical distributed system. Data fusion, energy management, transmission scheduling, target tracking and positioning, and network security all require monitoring nodes in the wireless sensor network to maintain time synchronization. The application of synchronization technology at this stage...

A temperature compensated phase-locked loop (PLL) frequency synthesizer with small locking time is presented. The locking speed is improved by combining the methods of direct frequency presetting and dynamic loop bandwidth. A new technique of temperature compensation combining the static temperature...

Aims to the defect of using pilot balloon theodolite to track and detect the rising balloon and get meteorological data, the project is put forward that using intermediate, long-range, long-endurance unmanned aerial vehicle (UAV) as a platform, mounting dropsonde to implement meteorological detection...