Hardware Design and Implementation of Image Processing System Based on FPGA

This paper aims to discuss the design and implementation of automatic control system for chemical production line based on PLC. With the rapid development of chemical industry and the intensification of market competition, it has become an important demand for chemical enterprises to improve production efficiency, ensure product quality and realize automation and intelligence of production process. Firstly, this paper analyzes the characteristics and requirements of chemical production line, as well as the requirements and objectives of automatic control system. Then, the overall architecture design, hardware design, software design, system implementation and testing process of the automatic control system of chemical production line based on PLC are described in detail. The feasibility and effectiveness of the system are verified by the analysis of practical application cases. The research results show that the automatic control system of chemical production line based on PLC can significantly improve production efficiency, reduce production costs, ensure product quality and enhance the market competitiveness of chemical enterprises. The research in this paper provides new ideas and methods for the design and implementation of automatic control system in chemical industry.

As a fully developed fieldbus technology, INTERBUS is widely used in the world. This paper mainly focuses on the research and development process of INTERBUS operator terminal. It consists of three traditional main steps: system design, hardware design and software design. Meanwhile, this paper also aims at INTERBUS network structure, hardware selection and protocol realization, especially discusses how to realize INTERBUS universal digital I/O board driver, INTERBUS process data and parameter data transmission and GUI interface. This paper's work will enhance application level of industrial automation.

Millimeter wave short range combined detection technology refers to that combining millimeter wave radar with radiometer and taking full advantage of the active range measurement and passive radiation characteristics of target to realize target bearing decision and target recognition, which is the development trend of millimeter wave detection technology and greatly improves the performances of millimeter wave detector. This paper takes TMS320VC5410 DSP chip as the core and utilizes the high-speed signal processing ability, rich on-chip resources and flexible external interfaces of C5410 DSP chip to finish the hardware design of signal processing system, including the following modules, such as AD sampling, memory extension, system power and system clock, etc, finally debugs the system and sums up the debugging experience.

IC testing has become an important supporting technology for the IC industry. A comprehensive and rigorous IC test process can not only improve the reliability of the products, but also reduce costs. In this work, a home-made analog IC test system was developed based on direct digital synthesis (DDS) and field programmable gate array (FPGA) that specialized in manufacturing testing for ETEK audio analog devices including audio DAC, audio effect processing circuit, and audio power amplifier circuit. Such system is cost-efficient and function-trimmed so as to lower the cost while still satisfying the basic needs of audio analog testing. In this article, the hardware design and implementation of such home-made analog IC test system was described and illustrated. The validity of such system was shown by the result of a trial-run test from a batch of audio power amplifiers, and the comparison of the obtained parameters with those from the commercial system further verified that our design and implementation of IC test system could be well adopted in the industry for manufacturing testing.

This paper describes the research and implementation of ground source heat pump unit remote real-time monitoring system, researches in remote real-time monitoring system's overall design, hardware design, software design and implementation of OPC communication. The host computer takes advantage of the human-computer interaction interface of configuration software to achieve the remote real-time monitoring for ground source heat pump unit's running state; the lower computer uses data collector to intensively collect the data which is measured by field measuring instruments, and to achieve remote data transmission based on Ethernet, and then to carry out the communication between the host computer and the lower computer via OPC technology. The results show that the system achieves remote real-time monitoring of ground source heat pump unit, and is stable, easy to operate and provides a reliable basis for the actual energy saving effect's evaluation of ground source heat pump system.

There are varies modulation formats such as ASK, OOK, BPSK, QPSK, DP-QPSK. The DP-QPSK modulation format appears as the best performing 50 Gbit/s modulation format solution with higher transmission efficiency and stronger anti-interference ability. Therefore, this topic has great significance for the study of a test system of DP-QPSK optical transmission. There is hardware and software design of the test system. Hardware design is the basis and prerequisite for the design of the test system, requiring further understanding of the composition of the test system. The software which completes the work of data processing is a crucial part of the whole test system.

We, in ETRI, have developed a real-time digital TV (DTV) system for direct broadcasting satellite (DBS) service. In this paper, we described hardware design and implementation of a DTV transport system, which is based on the MPEG-2 system specification. We also explain the system architecture and design considerations behind the development of the hardware system with field programmable gate arrays (FPGAs).

The magneto-rheological (MR) vibration reduction control technology is studied and a design and implementation of an automobile MR vibration reduction control system based on ARM9 is given in this paper. This paper introduces the system design process of embedded controller, current driver and other hardware, system software structure. Design of real time control system can realize the multi-channel vibration signal acquisition, control algorithm, CAN communications and other functions. The simulation and experiment show that, the control system software and hardware design can meet the functional requirements and have the advantages of fast response, high control precision and working stability.

In this paper, comparison and analysis between High Pressure Sodium (HPS) Lamp and Light Emitting Diode (LED) are represented. Now-a-days, latest technology LED lamp is mostly used for outdoor lighting due to its low energy consumption, less maintenance and long life. At Thapar University, HPS lamps are used for street lighting. If HPS lamps will be replaced by LED lamps, a good amount of energy saving is possible i.e. if we replace HPS lamp of 250W with LED lamp of 120W. Also, PV Off-Grid system is designed for street lighting at Thapar University.

This study is concerned with the design and implementation of a real-time processing system of full resolution quick-look image of HJ-1 environmental satellite C SAR based on high-performance clusters. The system processes the first quick-look SAR image on December 9, 2012. The results show that the design and implementation of the quick-look processing system satisfies the real-time SAR image processing performance requirements at full resolution. Moreover, this system is the first real-time business system of full-resolution quick-look spaceborne SAR images in China.

In this paper, we initiate a study on the deployment of large memories at the hardware and software design and implementation of a signal data acquisition system, making them essential tools for meeting the different needs of applications in signal acquisition system and not only can complete the data acquisition, storage, and read operations via VB-based interface software options, but also can change sampling rates. Furthermore, IMA-ADPCM speech coding algorithms is used and allows continuous recording of data, which is then stored in the system memory. The highly intelligent data gathering system which has the ability of high-precision real-time sampling, and it has merit in large storage capacity, power supply convenient, low-power, hot-swappable, portable, easy to operate, user-friendly, versatile, and good scalability. Experimental results show the system can achieve high signal to noise ratio of audio signal.

On the basis of the characteristic analysis of data transmission and interconnection interface in complicated radar real-time signal processing system, a multi-rate data exchange system based on large-scale FPGA is designed. Then the structure and composition of this system are described in detail. The system has the characteristics of standardization, modularization and scalability. And through the implementation and application in an airborne SAR signal processing system, the universality and flexibility of this system were proved. (4 pages)

In order to improve the accuracy of silicon piezoresistance pressure sensor under different temperatures, temperature compensation should be carried out. A temperature compensation system of pressure sensors is presented. The structure, hardware and software design of the system are introduced. In the hardware design, MAX1452 is used as the main compensation unit. A curve fitting algorithm based on cubic B-spline is adopted in the temperature compensation software design. The accuracy and the production efficiency of the sensors are improved. The system features in low cost, high efficiency and high accuracy. And it has great spreading value

The technological process of water treatment automatic control of the steelmaking converter, hardware and software design of the control system are introduced in this paper. The design and realization of water supply automatic control system are based on the S7-400 Programmable Logic Controller.

for the recognition of speech, the effect of speech preprocessing directly influences speech recognition. The filtering of speech is an important part of speech preprocessing, so the study of real-time realization of filtering of speech is very essential. This paper presents design of minimum speech system based on fixed-point DSP TMS320VC5416 chip. We use this system to realize Liner phase FIR filtering of speech in real time, liner phase FIR filter of Hamming function is used to filtering of speech for reducing Gibbs Effect, fixed-point arithmetic is adopted in filtering algorithm for reducing time of filtering of speech and ameliorates the real time. The system is made through connecting interface module of speech codec ASIC TLV320AIC23 to DSP teaching device. Since TLV320AIC23 Chip can directly connect to DSP Chip, hardware design is simple. When working frequency of TMS320VC5416 is set 160MHz, sampling frequency is 44.1kHz, pass band range of filter is 600Hz∼1000Hz, the length of filter equal to 33, the simulation results show that running time of filtering is less than sampling time of one speech data, the filter can meet system's real-time. The simulation waves show that filtering feature can meet the design requirements. Since the system makes full use of the DSP teaching device, the hardware design of system is simple, In addition, it combines with speech processing, it is as a good case of DSP or speech processing curriculum.