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The Wireless Sensor Networks (WSN) technology is employed in the open-pit mine slope detection system. When the open-pit mine slope is found abnormal, the WSN transmit data to the monitors timely in case of the unnecessary losses. Quantum genetic algorithm (QGA) is used in the multi-objective optimization problem of slope detection with WSN. It's for designing networking strategy of slope detection...
The paper used the ADALINE (adaptive linear neuron) structure rotate-speed recognizing method and applies the adaptive linear neuron to the non-velocity sensor combined with actual application conditions. The simulation results are get from MATLAB simulating first. Then the algorithm is applied to the biogas generator and gets the actual data.
Several control functions of hydraulic supports are realized through designing of hardware and software in this paper. Directed towards response lagging and security that they may appear in this system, theoretically analysis and calculation are conducted in this paper. Then methods for improving response speed and safety performance of system are raised. Finally, system functions and stability are...
In the dynamic distributed environment, the data sources trend to suffer changes that invalidate the mappings. We put forward a Fuzzy-based Broken Schema Mapping Detecting Approach (BSMD) to process the run time broken mapping detecting problem. The core of BSMD is a set of computationally inexpensive modules called sensors, which capture salient characteristics of data sources. There are two novel...
To realize the precise localization of the field working machine, the localization system which based on Laser/ Inertial Sensors (Laser/INS) was designed. Meanwhile, the system model was established, the Extended Kalman Filtering (EKF) algorithm was proposed, and the simulation was accomplished by Matlab. The simulation results show that the location system using the filter algorithm can keep precise...
The chemically sensitive field-effect sensors were made with simplified silicon chip technology, and its fabrication processing flow was designed based on the metal gate CMOS technology employing only 6 pattern masks. The sensors were measured as field modulation resistors since they were made in its depletion mode. When the selected polar molecules as the analyte polymer were coated on the gate area...
Horizon control of shearer is the bottleneck to realize automation for underground coal mining operations, the shearer had better have the ability to detect the coal horizon on each pass to set the preferred cutting height. The detection of coal-rock interface determines directly the solution of the problem, due to many deficiencies in existed detection ways such as mechanical, nucleonic, and vibrating...
This paper proposes a detection method of velocity direction for belt-broken, which is based on encoder and SCM, and develops a new detection device for belt-broken. The designing of hardware and software of the detection device are completed, and the feasibility of the whole scheme is proved by a mounts of experiments.
A method of two-axle follow-up control for gear measurement was presented and applied to gear tooth profile and helix measurement in this paper. The tangential and axial movement of probe along the tooth surface was implemented by this method. The relationship of the parameters in gear measurement by the follow-up control method was analyzed. A system model for measuring gear helix was established...
The traditional fire extinguishing system can not satisfy the requirements of fire extinguishing of interior large space as its own shortcomings. An auto-targeting fire extinguishing system of interior large space based on the single chip microcomputer control was designed. The fire extinguishing system was driven by two perpendicular stepper motor, and the fire location was detected using flame sensors...
A water quality monitoring system using automatic control and network techniques has been built. Hardware and software configuration for the system: measure meters, sensors, client/server configurations, Ethernet networks running TCP/IP, wireless network, PC-based operator terminals, terminal server's relational database and application software. The telemetry network improves the monitoring system's...
In NC milling process, tool wear measurement is an integral part of establishing tool wear model. In this paper, a new method of measuring tool wear is presented. This method maps tool wear into a kind of material which has no or less influence on tool wear, such as aluminium alloy, to reflect the wear status of milling tools. The reflection is completed by milling hole on this material using the...
A precise navigation method for high altitude unmanned aerial vehicle was researched. Strapdown inertial navigation system (SINS), star sensor and Bei Dou receiver were adopted in this method. Errors of SINS and misalignments of star sensor were chosen as system states of integrated navigation. A specified attitude matrix was constructed by outputs of SINS, then measurements of integrated navigation...
Linear induction motor (LIM) can move along a line rail directly, so it is necessary and feasible to use the position closed-loop method. A mathematical model centered on the synchronous d-q reference frame is presented to analyze the LIM. The position closed-loop method and the secondary field oriented vector control strategy are induced in detail based on the mathematical model. Simulation and experiment...
This article describes a new kind of health status detection system for cement rotary kiln. We designed a new data measurement program and the corresponding sensor according to the characteristics of kiln, using SCM as the next crew collected the detection sensor signals, and communicating with the host through the wireless module. IPC as a host computer analyze and process the data collected from...
The paper introduced the importance of transmission error (TE) measurement in brief, designed the electrical diagram of worm gear transmission error measurement system based on field programmable gate arrays (FPGA) and USB2.0 transfer protocol. The system can achieve high-speed transmission of acquired data, and displayed real-time by the host computer program. At last, the paper introduced the accuracy...
In order to carry on with the welding procedure test, a set of friction stitch welding device was designed. The control system consisted of welding process controlling system and experimental data acquisition system. The touch screen acted as human-machine interface, and the PLC together with multi spindle motion controller acted as the main control unit of the welding process controlling system,...
Visual sensing and adaptive control were combined in aluminum alloy pulse gas tungsten arc welding(GTAW) to control the penetration. The property of aluminum alloy GTAW was analyzed firstly. Stochastic system theory was used in the welding process, and the stochastic system model between the welding parameters and welding pool geometric parameters was established. Then real-time identification of...
The LonWorks technology is now wildly used in buildings, industrial facilities and many other fields. Its interoperability and reliability have been proven extremely robust. The Pyxos, the LonWorks platform's bottom network, extends the LonWorks into I/O buses and sensors networks. The paper mainly talks about the reliability of the Pyxos network. Firstly, the LonWorks and Pyxos technologies are viewed...
The wireless measurement system of straightness error based on two-dimensional PSD, C8051F330 and PTR4000 was designed. The principle of PSD, the signal processing circuit, and the wireless straightness error data transmission system were introduced in detail. An accuracy algorithm meeting the least condition which constructed the characteristic polygon and calculated the maximum intercepts of the...
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