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System Testing is a key technology of CVIS (Cooperative Vehicle Infrastructure System). A shortest test sequence generating approach in CVIS is proposed in this paper. The paper firstly analyzes the spatial-temporal state of vehicle and complexity of infrastructure in network. Then paper designs system features and test cases, and introduces the concept of support index of the test case to system...
In this paper, we use the Pyramid Histogram of Words (PHOW) feature in head pose estimation. Firstly, we divide the image into a regular grid, extract the Dense Scale-Invariant Feature Transform (Dense-SIFT) of it, and use K-means clustering method to obtain visual vocabulary dictionary. In order to save the location information of visual vocabularies, we set up the space pyramid of images and extract...
At present, the battery management system (BMS) of lots of electric vehicles (EV) with different types cannot communicate normally with AC charging piles in residential quarter. The paper proposed a coordinated charging strategy for EV aggregator in residential quarter without collecting the state of charge (SOC) of EVs. The method obtains the constant charging time of EVs by certainty analysis, then...
Recently, the researches about the video surveillance for constructing a safety environment and ecological investigation are highly demanded. In the video surveillance, the PTZ cameras are often applied to extract the close-up views by controlling the pan, tilt, and zoom operations in a large area. In this study, we develop a robust and amphibious target tracking with single PTZ camera in which the...
Clock gating is a power reduction technique widely used in Register Transfer Level (RTL) stage of a chip design. The addition of clock gating logics has increased the complexity of a design and therefore requires considerable amount of verification effort. Furthermore, the scoreboard checking mechanism in Open Verification Methodology (OVM) verification environment still lacks the capability to completely...
Research and application of distributed optical fiber Raman temperature sensor (DTS) is briefly introduced in this paper. The current situation of domestic oil, gas storage and transportation security is analyzed. In the instance of the application in the project of Rizhao Port oil tank area, a field test is conducted. The experimental results show that the various points' temperature that depot tanks...
The Shengli River–Changshe Mountain oil shale zone in northern Tibet represents a large marine oil shale resource in China. Thirty-four samples of oil shale were collected from the Changshe Mountain West oil shale, a new oil shale deposit discovered in this oil shale zone, to evaluate the minerals and geochemical anomalies in the oil shale. Minerals identified in the oil shale include calcite, dolomite,...
The vehicle terminal based on GPRS & CDMA communication takes GD32F105 as the processor, adopts with BDS & GPS positioning technology and communicates with central server by GPRS & CDMA modules. Specific implementation methods according to the hardware and software of vehicle terminal are presented in this paper. Meanwhile, this paper introduces the design of hardware and software of the...
Power spectrum estimation is to use the limited length of data to estimate the power spectrum of the signal. In this paper, we study the recently proposed tunable high-resolution estimator (THREE), which is based on the best approximation to a given spectrum, with respect to different notions of distance between power spectral densities. We propose and demonstrate a different distance for the optimization...
To solve the problem of metal-particle pollution in DC GIL, in a more realistic situation of coaxial cylindrical electrodes, the motion analysis of spherical metal particles is done based on DC GIL structure. Based on the theory of fluid mechanics and considering the SF6/N2 mixtures parameters, analysis of the flow resistance in the process of particle movement is proposed. Based on the collision...
Fault diagnosis is vital in the development of electro-mechanical actuators (EMAs). In this paper, the components of electro-mechanical actuators are introduced and several common faults are listed and explained. All the preparing work lay a solid foundation for construction of fault tree. A typical fault tree is built reflecting fault transmission of EMA. Analysis is divided into three aspects: qualitative...
In this paper, a new region-level scene labeling approach is proposed, which combines a deep convolutional neural network with the Mean Shift segmentation algorithm. For each image, it is firstly segmented into local regions using the Mean Shift algorithm. Then a deep convolutional neural network trained with images of target objects is employed to get the probability scores of randomly cropped samples...
For the missile-target relative motion equations in the three-dimensional space, a three-dimensional impact time control guidance law is proposed for multiple missiles in attacking a stationary or a slowly moving target. The engagement dynamics is decoupled approximately into the pitch channel and the yaw channel. In order to augment guidance robustness against changes of system parameters and external...
The rolling reheating furnace is widely used in the large-scale iron and steel plant and the constantly changing dynamic characteristics and the interaction effect between different heating zones become challenges to operate a reheating furnace in an efficient way. In this paper, statistics analysis methods are utilized to justify the significance of the derived variables for the thermal efficiency...
In this paper a problem of a dynamic positioning system design for a surface robotic vessel is addressed. The considered plant is represented as a MIMO system which comprised of three independent SISO dynamical channels. Each of them corresponds to the particular coordinate of the boat. All the SISO channels are controlled by, so called, virtual control inputs generated using a new algorithm of output...
In the modern combat operation, the fixed combination of sensors and weapons are divided into separate parts, allowing better sensors to match with better weapons. As a result, the shooting effectiveness of weapons can be improved. In order to maximum the benefit of the combat operation, the optimization problem to describe operational effectiveness of sensors and weapons is established. Furthermore...
In the case that the control system performance is detected in poor state, it is desirable that the underlying cause can be found and the information can be used for the adjustment and recovery. Developing a recursive two-stage identification (RTSID) algorithm and a recursive control performance assessment algorithm with kernel partial least square (KPLS), then integrating the proposed identification...
When considering the problem of how to design multi UAV formation keeping optimization model, we combine the kinematic equation of multi UAV, performance index and constrained condition to construct a constrained optimization problem. After some transformation is used in the performance function to decompose the optimization problem, we introduce the Lagrange multiplier vector to construct a Lagrange...
As an important part of emergency relief supplies, supplies scheduling model for the optimization of the incident emergency rescue is the important premise, the paper introduces aid scheduling model and algorithm analysis, make corresponding model for the aid of dispatching work smoothly to provide more convenient and optimization.
Content-Centric network is a new network architecture which proposed to accommodate future changes in network traffic patterns, and to acquire the native support for scalable and efficient content. Content caching mechanism is one of the key research issues. It is too concentrated in selecting caching nodes of existing mechanisms, serious uneven with cache load distribution, greatly reducing the systems...
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