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Data collecting and editing system

A data acquisition node and data technology, applied in the direction of measurement, measurement devices, instruments, etc. using digital measurement technology, can solve the problem that it is difficult to achieve long-distance, and achieve small size, high acquisition accuracy, and high bus transmission rate. Effect

Inactive Publication Date: 2019-03-29
ZHONGBEI UNIV
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Problems solved by technology

The independent development of the data acquisition system is strong. In the system, the combination of software and hardware makes the system more flexible in design, higher in work efficiency, and its functions are increasingly powerful and increasingly intelligent. It can accurately and real-time collect large-scale equipment. The status data during work and the real-time change data of the environmental parameters are transmitted to the upper computer for display, but the existing data acquisition system is difficult to achieve long-distance, high-precision, large-scale and multi-location data acquisition.

Method used

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with specific examples.

[0023] A data acquisition system, such as figure 1 , Figure 3~Figure 5 As shown, 32 data acquisition nodes are included, and the data acquisition nodes are independent data acquisition and compilation systems, and all data acquisition nodes are connected with the RS-485 bus, and the RS-485 bus is connected with the host computer; each Data acquisition node comprises sensor analog input module, A / D acquisition module, FPGA main control circuit module, RS-485 bus communication module and power supply circuit module, and described A / D acquisition module adopts data acquisition chip ADS1258, and described FPGA main control circuit module The circuit module adopts chip XC6SLXl6_196, and the sensor analog input module inputs analog signal data to ADS1258 and converts it into a digital signal. The data input DIN, data output DOUT, chip selection CS, and clock input SCLK pin of the ...

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Abstract

The invention discloses a data collecting and editing system, comprising 32 data collecting nodes. All data collecting nodes are separate data collecting and editing systems, and are connected to theRS-485 bus. The RS-485 bus is connected to the host computer. Each data collecting node comprises a sensor analog input module, an A / D collecting module, an FPGA master control circuit module, an RS-485 bus communication module, and a power circuit module. The workflow is that the RS-485 bus receives and parses commands, if the command matches successfully, a data collector is configured accordingto the commands, starts the data collecting and conversion, packs the conversion result into a data packet and sends it to the RS-485 bus. The novel data collecting and editing system has the characteristics of small volume, high bus transmission rate, high acquisition precision, reliable conversion of data, and stable system operation.

Description

technical field [0001] The invention relates to the field of data collection and compilation in communication, in particular to a data collection and compilation system, which is suitable for multi-channel data collection and compilation. Background technique [0002] Data acquisition system is an important part of information processing system. The independent development of the data acquisition system is strong. In the system, the combination of software and hardware makes the system more flexible in design, higher in work efficiency, and its functions are increasingly powerful and increasingly intelligent. It can accurately and real-time collect large-scale equipment. The status data during work and the real-time change data of the environmental parameters are transmitted to the upper computer for display, but the existing data acquisition system is difficult to achieve long-distance, high-precision, large-scale and multi-location data acquisition. . Therefore, there is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/25
CPCG01R19/2509
Inventor 刘文怡沈三民张会新王艳彭晴晴刘利生
Owner ZHONGBEI UNIV
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