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187results about How to "Prevent misidentification" patented technology

Local discharge signal identification method and device

The embodiment of the invention provides a local discharge signal identification method and device. The method comprises the following steps of obtaining and displaying an output signal of high-voltage equipment, wherein the output signal comprises a pulse signal and a sinusoidal signal, and the pulse signal comprises a target signal; carrying out spectral analysis on the pulse signal to obtain a frequency domain signal; carrying out band-pass filtering on the frequency domain signal to obtain a band-pass frequency domain signal; carrying out time domain analysis on the band-pass frequency domain signal to obtain a time domain signal, and obtaining the target signal in the time domain signal; according to the characteristics of a standard discharging signal, judging whether the target signal is a local discharging signal. According to the embodiment of the invention, the target signal and an interference signal in the pulse signal are subjected to primary separation according to the correlation of the phases of the pulse signal and the sinusoidal signal in the output signal of the high-voltage equipment, the characteristics of the target signal are compared with the characteristics of the standard discharging signal to determine whether the target signal is the local discharging signal, a phenomenon that the interference signal is wrongly taken as the local discharging signal is avoided, and detection accuracy is improved.
Owner:北京兴迪仪器有限责任公司 +1

Automatic ancient ceramic authenticity identification system and method

InactiveCN104361056ADiscrimination process scienceThe identification process convinces the publicSpecial data processing applicationsMetadata based other databases retrievalData miningIdentification system
The invention discloses an automatic ancient ceramic authenticity identification system and method. The automatic ancient ceramic authenticity identification system comprises a genuine article characteristic database, a characteristic acquisition module, an identified article characteristic database, a comparison module and an output module, wherein the characteristic acquisition module is connected with the identified article characteristic database, and the comparison module is respectively connected with the genuine article characteristic database, the identified article characteristic database and the output module; identified article characteristics are input through the characteristic acquisition module, the characteristic acquisition module stores the identified article characteristics in the identified article characteristic database, the comparison module compares the identified article characteristics in the identified article characteristic database with ancient ceramic genuine article characteristics in the genuine article characteristic database one to one, and the output module outputs authenticity identification results. The automatic ancient ceramic authenticity identification system and method have the advantages that since the identified article characteristics are compared with the ancient ceramic genuine article characteristics one to one and a computer is used for conducting memorization and automatic comparison, the ancient ceramic authenticity identification process is more scientific and persuasive, no errors substantially exist and misidentification caused by human factors is avoided.
Owner:蒲重良
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