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

A data acquisition and embedded technology, applied in the information field, can solve the problems of unreachable speed, poor robustness, slow processing speed, etc., and achieve the effect of avoiding paralysis and increasing robustness

Inactive Publication Date: 2011-01-26
NORTHEASTERN UNIV LIAONING
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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] Embodiment 1 Applying the present invention to the early warning and leakage detection and positioning system of oil pipelines in oil fields

[0067] Taking the data acquisition of the pipeline operating parameters of the oil and gas storage and transportation pipeline as the application object, it is used on the outer wall of the oil and gas transportation pipeline, based on the effective transmission distance of the sound wave, and the adjacent ones are sequentially installed with high-sensitivity acoustic sensors and the dual-core embedded network of the present invention The data acquisition and analysis device constitutes a multi-sensor acquisition sequence of pipeline operating parameters. By analyzing the sound waves and the pressure, flow and temperature signals at the beginning and end of the pipeline, combined with the corresponding main control computer early warning and leak detection and positioning software to form a multi-sensor information-based Fusion of...

Embodiment 2

[0110] Embodiment 2 Applying the present invention to the grain depot temperature and humidity monitoring and dispatching system

[0111] The device of the invention is also successfully applied in a large-scale grain depot 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 the data of each sampling point. Due to the particularity of temperature and humidity measurement in grain depots, these two parameters require multi-point sampling and measurement, followed by comprehensive analysis. The structure of this device is just suitable for this application occasion. The high speed and real-time performance 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 dep...

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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 avoidingbreakdown 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, in particular 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 acquisition environments have different functional requirements for data acquisition devices. For example, in some occasions it is necessary to process discrete data and in some occasions it is necessary to process continuous data. 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, it is easy to increase the power consumption of the system and reduce the efficiency of the system in some occasions. [0003] In the existing data acquisition devices, the following problems generally exist: (1) The processing data typ...

Claims

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Application Information

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