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Real-time lossless compression can reduce the burden of big data transmission and storage. Hardware compression is faster and more energy saving when compared with software. This paper proposes a novel LZO hardware architecture and various acceleration methods, integrates the compressor module and other IP modules. Finally, test and demonstration are provided on the DE2 development board. The results...
A networking mechanism was designed based on scalable trailing edge to satisfy the requirements of morphing wings. By this way, we can increase the lift coefficient and the aerodynamic efficiency of the aircraft in the process of taking off and landing. We use Lagrange equations to set up the system dynamics model. Simulation results by Simulink and Fluent show that the whole system can realize the...
Phase change memory (PCM) has many advantages over the traditional DRAM technology, hence it becomes a promising candidate for main memory. Multi-level cell (MLC) PCM has the benefits of higher capacity and lower cost-per-bit due to store multiple bits in a single cell. However, MLC PCM employs an iterative write scheme, which is precise, reliable but slow, incurring adverse impact on the system performance...
Phase change memory (PCM) is a promising nonvolatile memory technology developed as a possible DRAM replacement. Although it offers the read latency close to that of DRAM, PCM generally suffers from the long write latency. Long write request may block the read requests on the critical path of cache/memory access, incurring adverse impact on the system performance. Besides, the write performance of...
Aiming at planar linkage mechanisms considering joint clearance effects, a modular approach based on the link group theory and the graph theory is proposed to improve modeling efficiency. The massless link model to simulate joint clearances provides possibility for using modular approach to analyze the clearance effects. Meanwhile, this approach highlights the hierarchy and reusability of a defined...
An improved virtual flexible bar algorithm which aims at improving the trajectory tracking accuracy of automatic vehicle following system is proposed in this paper. To achieve successful vehicle following, the algorithm mainly consists two parts: the flexible bar which can fit the leader vehicle's trajectory and the force acting in the flexible bar which pull the follower vehicle to track the leader's...
From shoulder to wrist, a person's arm has a total of seven degrees of freedom (DOFs), which is the minimum number of DOF for the robot that needs to avoid obstacles and internal singularity. Compared to the traditional 7-DOF robot, the 7-DOF cable-driven robotic arm (CDRA) similar to human muscles parallel drive mode is the hybrid structure of serial-parallel, which possesses a number of promising...
In Vehicular Ad-hoc Network (VANET), the multi-hop routing frequently breaks off, which has a negative effect on the reliability and transmission quality of the network. The paper proposes a new routing algorithm based on the geographical position, called Multi-Priority Opportunistic Directional Routing (MPODR). The algorithm improves the existing Opportunistic Directional Forwarding Strategy from...
Spherical robot can move efficiently on flat ground and the hopping robot can leap the obstacles over several times of its own size. In this paper, a spherical hopping robot which combines the spherical robot and hopping robot is proposed. It can roll freely in the plane, if there are barriers it can jump at the desired angle and in the desired direction after self-adjusting. Also it can jump repeatedly...
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