Data Storage Circuit Research Articles

The parameter acquisition system of oil drill’s bit in working process

In the process of oil drilling, it is often required to improve the drilling efficiency and to be able to analyze the faults in the drilling process, so it is of great significance to study the parameter acquisition system of the oil drill bit working process[1]. Aiming at this situation, this paper designs a device for downhole data acquisition, vibration detection, temperature detection and rotational speed detection of deep well drill bits. In this paper, an overall scheme is designed, and the acceleration[2], on-board temperature [3]and rotational speed[4] of the three axes of X, Y, and Z are selected as the main measurement objects. The working parameters of the drill bit can not only reflect the entire working condition of the drill bit, but also can be used for failure analysis during the drilling process. Provide strong evidence. First of all, components need to have high temperature resistance characteristics. At the same time, the selected components can meet the detailed parameters of technical requirements, including measurement range, measurement accuracy, resolution, etc. Secondly, design the hardware circuit, including acceleration acquisition circuit, temperature measurement circuit, rotational speed measurement circuit and data storage circuit. Finally, the software is designed, including the data acquisition, the A/D conversion and the Flash stored program design.

3-D Holographic Data Storage Circuit Design

In this paper, we propose a 3-D holographic data storage circuit design. According to optical principle, holographic data storage and processing circuit are designed to record the holographic image and achieve 3-D holographic display. The circuit performs the rotation, mirror, and shift operation of holographic image and calibrates the stereo panoramic imaging system. In the system, multirate operating is adopted to achieve holographic image resizing. Simultaneously, holographic image calibration is performed to achieve smooth panoramic stereo image. After designing, the system provides fantasy 3-D holographic images that attract human attention.

Design and Implementation of New Multi-Functional Intelligent Single Phase Meters

Because the reasons of only reached part intelligent of existing energy meter and the difficulty of hardware upgrades, we propose a new design that is a modular single-phase multi-rate smart electronic meter based on MSP430 low-power single-chip. We used AD7755 as a dedicated power measurement chip to ensure the accuracy of the measuring pulse. In order to improve the reliability and usefulness of the electric meter, we have used the clock circuit, data storage circuit, display drive circuit, three kinds of communication circuits, and anti-tamper technology. Through making use of it, The multifunction smart meter is proved that it has a character of stable performance, accurate measurement. It is full compliance with national design specifications of IEC62053-22 and the active energy error met the accuracy requirements of class 0.5S.

Design of a LXI High-Speed Parallel Data Acquisition System

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.

Design and Implementation of a Novel Intelligent Curtain Module System

Intelligent curtain system can be time switch and achieve more advanced control functions as scene control. The paper introduced curtain applications, electric curtain classification as well as intelligent curtain with new functions. Based on requirements analysis on intelligent curtain of hotel room, functional division of intelligent curtain module was determined. MCU control circuit, data storage circuit and motor drive circuit were designed. The I/O interface of AT89C4051 was used to implement functions of key signal input, voice broadcast or timekeeping. CAN bus was used for communication to complete required curtain linkage function when guest plug card.