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

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...

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

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