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China is now building the largest single dish radiotelescope in the world in Guizhou province, which is calledFive-hundred meter Aperture Spherical radio Telescope(FAST). The main purpose of this paper is to introduce theapplication of vibrating wire sensor in the monitoring of cablenetconstruction stage for FAST. Firstly, the advantages andprinciple vibrating wire sensor are discussed. Then, a series...
Ring beam is one of the most important structures for main reflector system of FAST. During the cable-net construction phase and the reflector hoisting stage, ring beam is used for the track of installation vehicles. The stresses of ring beam are intensified. The construction process monitoring system of main reflector system for FAST is introduced. Firstly, according to calculating results of designation,...
An over-voltage online monitoring system based on the impulse full current of arrester is developed in this paper. The system measures the wave head and amplitude of the impulse full current of arrester through external-integral rogowski coil, and transfers the measurement result to the upper computer via USB optical measuring system, and then implements the measurement and monitoring on over-voltage...
In order to overcome the defect of physic-chemical monitoring system and enhance the intelligence of biological monitoring technology, an online monitoring system of fish behavior is proposed in this paper. The main contributions of this system are as follows: 1) adaptive background updating algorithm (ABU); 2) automatic camshift tracking algorithm (ACT) with twice searching; 3) particle filter tracking...
This paper introduces an intelligent remote monitor system based on ZigBee sensor networks for IDC (Internet Data Center) room. The system consists of two parts: three types of ZigBee modules and the server module. The three types of ZigBee modules contain first-cluster node, second-cluster node and sensor end-node. The system can control remote IDC room based on the connection of the ZigBee protocols...
For application researches of the detection for the gas signal source, a method for orientation estimation of the gas signal source in the two-dimensional space and its algorithm are presented in the paper. In the method, a mode of dual-line gas sensor array is applied to sample the signals of the gas concentration in real time, and the time delay estimation, an approach of the signal processing,...
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