Zhonghui Du

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As the era of “big data” comes, the data processing platform like Hadoop was born at the right moment. But its carrier for storage, Hadoop distributed file system (HDFS) has the great weakness in storage of the numerous small files. The storage of numerous small files will increase the load of the entire colony and reduce efficiency. However, datasets such(More)
This paper proposes adopting multiple ultrasonic sensors to localize indoor mobile robot. In order to achieve uttermost coverage and improve the accuracy, we combine three-sensor coverage, two-sensor coverage and single sensor coverage. When the data from sensors cannot determine the location of the robot, the relative coordinates is adopted for(More)
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