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High precision intelligent gain multipath data collecting system

A data acquisition system, high-precision technology, applied in gain control, general control system, control/regulation system, etc., can solve problems such as signal acquisition limitations, increase anti-interference ability, improve reliability and intelligence, The effect of reducing the failure rate

Active Publication Date: 2012-10-03
ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a high-precision intelligent gain multi-channel data acquisition system to solve the problem that the prior art signal acquisition system has limitations on signal acquisition

Method used

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  • High precision intelligent gain multipath data collecting system
  • High precision intelligent gain multipath data collecting system

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Embodiment Construction

[0021] Such as figure 1shown. High-precision intelligent gain multi-channel data acquisition system, including eight-channel signal input socket 1, eight-channel analog multiplexer 2 of model 4051, program-controlled amplifier circuit 3, analog-to-digital conversion using 12-bit AD conversion chip of model ADS7818 Device 4, eight-way serial input and output register of model CD4094 5, single-chip microcomputer model of ATmega64 6, serial communication interface 7, computer 8 with acquisition system control software, photocoupler 9. The acquisition system control software is used to control the start and stop of signal acquisition and select the acquisition channel. As the control core of the entire system, the single-chip microcomputer 6 is responsible for controlling the mutual cooperation between the respective jobs of each component under the guidance of the internal resident program. Pin 3 of the clock input terminal of register 5 and pin 2 of the serial input terminal a...

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Abstract

The invention discloses a high precision intelligent gain multipath data collecting system. The high precision intelligent gain multipath data collecting system comprises a computer and a singlechip in communication connection through a serial communication interface. The singlechip is connected with an analogue-digital converter and is further connected with an eight-path serial-in parallel-out register. The eight-path serial-in parallel-out register is connected with an eight-channel analogue multiplexer and is further connected with a program-controlled amplifying circuit. The program-controlled amplifying circuit is connected with the eight-channel analogue multiplexer and the analogue-digital converter. An integral access for signal input, amplification, collection and output is formed by the eight-channel analogue multiplexer, the program-controlled amplifying circuit, the analogue-digital converter, the singlechip and the serial communication interface. According to the high precision intelligent gain multipath data collecting system provided by the invention, the signal collecting speed can be enhanced greatly, the reliability and intelligent degree of signal collection can be improved, and the anti-interference capacity of the system can be strengthened.

Description

technical field [0001] The invention relates to the field of signal acquisition systems, in particular to a high-precision intelligent gain multi-channel data acquisition system. Background technique [0002] With the development of industrial automatic control and computer technology, the status of data acquisition in modern industrial production and scientific and technological research has become increasingly prominent. Especially in recent years, the demand for data acquisition has increased day by day, making data acquisition systems have broad application prospects. However, with the development of signal processing technology, the signal to be processed becomes more and more complex, such as large dynamic range, increased bandwidth, etc., which puts forward special requirements for the performance of the data acquisition system. When the dynamic range of the signal to be processed is very large, the A / D front-end amplifier is required to have a large dynamic range or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042H03G3/20
Inventor 徐文清高亦桥贺巧妙詹杰徐青山
Owner ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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