Papers by Keyword: Data Acquisition (DAQ)

Abstract: This paper set up high-quality and highly efficient automatic data collection and analysis system by King View configuration in order to improve the reliability and stability of PV-Wind power system monitoring and decrease the workload, the design of its functions, structure, interface, control strategy and system variables, protection, and so on are detailed. It uses configuration software based on PC to exploit the operation interface in host computer, and adopt Wide-Plus Intelligent Instrument as the lower computer to data-acquisition. It monitors and controls PV-Wind power System, acquires field data, deals with device faults in real-time

Abstract: This paper set up a data acquisition system by AT89C52 single chip microcomputer as control core, using the RS-232 serial manner communicated with responsibled for data acquisition of microprocessor, and used LED to display. System can be divided into data acquisition module, serial communication module, control module, keyboard module, display module, etc. System of multi-channel data acquisition can be displayed in the LED after processed. The hardware circuit and software realized design functions :data acquisition and LED display.

Abstract: The research on establishing an automated data acquisition system with high speed and accuracy is a hot topic in measurement and testing area. The desire is extremely high in data acquisition systems with high speed, multi-channels and large capacity, therefore research into this field becomes very important and significant. In this paper, a LXI high speed parallel data acquisition system which is combined LXI bus with high-speed data acquisition ability is proposed. And the signal conditioning circuit, ADC, data storage circuit, FPGA main control circuit and LXI interface circuit are introduced in detail. The remote control of the data acquisition system and the high speed transmission of data are realized by using the LXI bus.

Abstract: This paper reports the basic principle and implementation process of FPGA-based multi-channel analog signal acquisition module. The emphasis of the full text is the principle of Data acquisition and the system implementation process. Multi-channel data acquisition module is composed of signal conditioning circuit、multi-channel analog multiplexers、A/D conversion and the central control system. The design uses LM324 for input signal conditioning; uses AD's 16 analog input signal chip ADG706 for channel selection; uses AD's 12-bit precision A/D converter AD7492 as the core chip of acquisition module for completing the A/D conversion; uses Xilinx's programmable logic device XC2S100 as part of the core control to achieve control of each module. Under the control of the design software, this design can take advantage of FPGA control multi-channel analog switch、A/D conversion、data compilation and uploading the data to PC to store and analyze.

Abstract: Due to the project in this article, a kind of image capture and processing system based on FPGA is proposed, the low cost high performance FPGA is selected as the main core, the design of the whole system including software and hardware are implemented. The system achieves to functions of the high -speed data collection, the high -speed video data compression the real time video data Network Transmission and the real time compression picture data storage. the data processed was transferred to PC through USB2.0 real-time to reconstruct defects microscopic images. Experimental results prove right and feasible by adopting the algorithm and scheme proposed in this paper.

Abstract: In tracking control system, control precision is influenced by the generation of control signals and precision of control is affected by data acquisition. Signals are easily interfered by environment after data acquisition．Therefore transmission standards and communication protocols are crucial links．Related links of this system was analyzed and discussed in this paper．

Abstract: Vibration platform remote monitoring testing system, drived by tri-linear motor, makes use of PID Control Toolkit in LabVIEW to control the linear motor. It also uses a DAQ card named PCI 6229 from NI Company to capture digital signal from the motor encoder and collect the analog signals from the force sensor as well as output the driver signal of motor. Data Socket technology was used to achieve the remote motor control and data transmission.

Abstract: This article describes the vehicle based on virtual instrument engine control system research and development of the experimental platform. Virtual instrument technology combined with artificial intelligence inference mechanism for the establishment of a virtual instrument based on the engine electronic control system testing and fault diagnosis system, to achieve the electronic control engine system sensors online test, waveform analysis, data storage, replay and failure diagnosis.

Abstract: To verify the design of a standalone photovoltaic (PV) system, a test facility has been installed. This paper describes a platform to test the stand-alone solar system according to the IEC62124 standard. Essentially, this entire system involves the integration of a Personal Computer (PC), Data Acquisition (DAQ), an AC load and a solar array simulator (SAS) to test and simulate a stand-alone PV system. The main functions of this test facility are data acquisition, display, save and analysis data and print reports. The information obtained by monitoring parameters, such as average battery’s temperature, voltage and current is fed to the PC via the DAQ for analysis. This customized control interface has been developed by utilizing Labview software. This new system boasts of high accuracy measurements coupled with the commercial viability of low cost.

Abstract: Today’s scarcity of power generation and complex distribution through the electric power systems can not address the trend of increasing demand and consumption of electricity. The monitoring and control of the electric power systems through wired communications require expenses in material, staff, and usually fail in the effective communication for fault diagnostic and protection. In this article we discuss the possibility for the Wireless Sensors and Actuators to address this challenge and provide an optimization of the management for the electric power systems. By embedding the positive influence over the three major power systems: power generation, power delivery, and power utilization, Wireless Sensor and Actuator Networks (WSANs) emerge as an enhancing technology for the next generation of electric power systems, Smart Grids. In this paper, we present an overview of the functionalities of the WSANs in Smart Grids, their advantages over traditional networks, and their architectural characteristics in a way of supervision and control of the power system, by improving the balance between the power supply and demand, and therefore avoiding energy shortages.