Double-core embedded type networking data collector and blind source separating filtering method

A data collection and network data technology, applied in the information field, can solve problems such as poor robustness, speed, and difficulty in remote operation, and achieve the effect of increasing robustness and avoiding paralysis

Inactive Publication Date: 2009-05-27
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In different occasions, if the amount of data to be processed is inconsistent, but the same processing method is adopted in the process of data collection and processing, in some occasions it is easy to increase the power consumption of the system and reduce the efficiency of the system
[0003] In existing data acquisition devices, there are generally the following problems: (1) the processing data type is single and cannot adapt to various data types
(2) When the amount of data to be collected and processed is relatively large, due to the limitations of the central processing unit, the processing speed is slow and cannot reach the required speed
(3) Low degree of networking, not easy to operate remotely
(4) The operability of the system device is poor
(5) The robustness of the system is poor
(6) There is a lack of effective filtering means or a single filtering method, which cannot effectively obtain the real data of the observed object from the observation data disturbed by noise

Method used

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  • Double-core embedded type networking data collector and blind source separating filtering method
  • Double-core embedded type networking data collector and blind source separating filtering method
  • Double-core embedded type networking data collector and blind source separating filtering method

Examples

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Embodiment 1

[0066] Example 1 Application of the present invention to an early warning and leak detection positioning system for oil pipelines in oil fields

[0067] Taking the data collection of pipeline operating parameters of oil and gas storage and transportation pipelines as the application object, adopting the outer wall of the oil and gas transportation pipeline, based on the effective transmission distance of sound waves, adjacently installing high-sensitivity acoustic sensors and the dual-core embedded network of the present invention The data collection and analysis device constitutes a multi-sensor collection sequence of pipeline operating parameters, which is based on multi-sensor information by analyzing the sound waves and the pressure, flow and temperature signals at the first and end ends of the pipeline, and combining the software with the corresponding master control machine warning and leak detection positioning judgment Integrated production process important parameter dete...

Embodiment 2

[0110] Example 2 Application of the present invention in a grain storage temperature and humidity monitoring and dispatching system

[0111] The device of the invention is also successfully applied to a large-scale grain storage temperature and humidity monitoring system. The system adopts a master-slave structure, and the master computer is responsible for data processing and system control; the data acquisition device of this device collects and uploads data at each sampling point. Due to the particularity of the temperature and humidity measurement of the grain storage, these two parameters require multi-point sampling and measurement, and then a comprehensive analysis is required. The structure of the device is just suitable for this application. The high speed and real-time of the device can ensure the accuracy and timeliness of the collected data, and can fully ensure the stable operation of the temperature and humidity monitoring and dispatching system of the grain warehous...

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Abstract

The invention relates to a duel-core embedded networking data acquisition device and a filtering method for blind source separation thereof, which belongs to the field of information technology. The duel-core embedded data acquisition device controls a running state of the whole system by using ARM, analyzes and processes the acquired data by using DSP, is communicated with ARM through an HPI interface, can give a play to the advantages of ARM in terms of logic control, also can give a play to the advantages of DSP in terms of digital signal processing. Moreover, the running speed of the system is improved. The device can send data through not only Ethernet, but also a GSM / CDMA module, and is automatically switched to other transmitting modes by an ARM embedded processor, thereby avoiding breakdown of the system and increasing robustness of the system without influencing the normal operation of the system. A second class filtering mode for combining hardware filtering with software filtering based on blind source decoupling is adopted to truly and effectively restore signals and separate the needed source signal.

Description

Technical field [0001] The invention belongs to the field of information technology, and particularly relates to a dual-core embedded networked data acquisition device and a blind source separation filtering method thereof. Background technique [0002] Most application sites (especially industrial sites) have complex and diverse environments, and different collection environments have different functional requirements for data collection devices. For example, in some cases, discrete data needs to be processed, and in other cases, continuous data needs to be processed. In different occasions, if the amount of data that needs to be processed is inconsistent, but the same processing method is used in the process of data collection and processing, in some occasions it is easy to increase the power consumption of the system and reduce the efficiency of the system. [0003] In the existing data acquisition devices, the following problems generally exist: (1) The processing data type i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/048G05B19/418
CPCY02P90/02
Inventor 冯健刘金海马大中杨东升
Owner NORTHEASTERN UNIV
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