Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

81results about How to "Improve inspection reliability" patented technology

Generation method of vibration environment long life test spectrum of converter of electric multiple units

The invention discloses a generation method of a vibration environment long life test spectrum of a converter of electric multiple units. The generation method comprises following steps of: obtaining a vibration environment standard spectrum according to vibration data of a converter installed on electric multiple units; calculating a root mean square value g1 of the vibration environment standard spectrum according to the vibration environment standard spectrum; calculating an accelerated speed proportion coefficient beta according to the total life running distance L of the electric multiple units, the average running speed V of the electric multiple units, the test time T and an index m through a formula: beta = (L/V*T) 1/m; calculating a root mean square value g2 of the vibration environment long life test spectrum according to the accelerated speed proportion coefficient beta and the root mean square value g1 of the vibration environment standard spectrum through a formula: g2 = beta*g1; and calculating the vibration environment long life test spectrum according to the root mean square value g2 of the vibration environment long life test spectrum. In this way, the accurate vibration environment long life test spectrum a can be obtained and improvement of detection reliability is facilitated.
Owner:CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST

Method for detecting state of tuning area of uninsulated frequency-shift automatic block system

The invention discloses a method for detecting the state of a tuning area of an uninsulated frequency-shift automatic block system, relating to a method for detecting the state of a tuning area of a track circuit. The method is designed for solving the problem that the detection on the state of a tuning area of the existing electrical resonant uninsulated frequency-shift automatic block system can not be realized. The method comprises the following steps: a transmitting apparatus sends voltage signals to a transmitting matching transformer FBP, and the matching transformer FBP carries out matching transformation on the voltage signals and then inputs the voltage signals to an uninsulated track; a receiving matching transformer JBP acquires a track surface voltage of a receiving end, carries out matching transformation on the track surface voltage, and then outputs the track surface voltage to a receiving apparatus; the receiving apparatus carries out filtering separation on the signals so as to obtain a tuning area voltage signal and a main track voltage signal; and the tuning area voltage signal is compared with the main track voltage signal so as to realize the detection on the state of the tuning area of the uninsulated track circuit. The method disclosed by the invention is suitable to be applied to the detection on state of the tuning area of the uninsulated frequency-shift automatic block system.
Owner:黑龙江瑞兴科技股份有限公司

Authentication and authorization method, tax-related business platform and related device

The embodiment of the invention discloses an authentication and authorization method, a tax-related business platform, a tax bureau front-end system, an anti-fake tax control device and a tax-related system, in order to improve the test reliability and validity of the authentication and authorization. The method disclosed by the embodiment of the invention comprises the following steps: the tax-related business platform obtains authorization information comprising a PIN code of the anti-fake tax control device of a tax user, and the tax-related business platform obtains a private key and then performs signature on preset information according to the private key to obtain an encryption factor; the tax-related business platform calls an interface of the anti-fake tax control device according to the PIN code and sends the encryption factor to the anti-fake tax control device through the interface of the anti-fake tax control device; the tax-related business platform obtains signature data sent by the anti-fake tax control device so as to send the signature data to the tax bureau front-end system; and thus, the tax-related business platform obtains authorization success information sent by the tax bureau front-end system. Management and control are performed by the encryption factor and the private key, thereby improving the reliability of testing whether the tax-related business platform is authorized by the tax user and ensuring the validity of the authorization of the tax user of the anti-fake tax control device to the tax-related business platform.
Owner:深圳微众信用科技股份有限公司

Digital signal discriminator and use method thereof

The invention discloses a digital signal discriminator and a use method thereof. The device comprises a base. The outer wall of the top of the base is clamped with an outer cover. The inner wall of the top of the base is clamped with a circuit board. The outer wall of one side of the base is provided with an opening. The inner wall of the through hole is clamped with a digital signal output end and a digital signal loading end, wherein the digital signal output end and the digital signal loading end are connected with the output end and the input end of the circuit board respectively. The method comprises the steps that phase information is acquired through digital phase demodulation; digital discrimination is realized through phase differentiation; and an A/D converter directly samples anintermediate frequency analog signal. According to the invention, the structure design is reasonable; the flow is clear; the intermediate frequency analog signal is input, and finally a high frequency analog signal is simulated and output; signal sampling is extracted and output; the overall process is unified; intermediate frequency transits to low frequency and high frequency; the analog signalis converted into a digital signal, which can improve the test reliability; and compared with intermediate frequency and high frequency analog signals, the digital signal simply needs simple identification.
Owner:HUNAN JIAYEDA ELECTRONICS

Liquid crystal display module and display detecting circuit thereof

The invention relates to a liquid crystal display module and a display detecting circuit thereof. The display detection circuit comprises a module grounding line, a circuit board grounding line, a grounding module, a circuit board testing circuit, an auxiliary detecting line and a resistor R2, wherein the module grounding line is provided on the module body; one end of the circuit board groundingline is electrically connected to one end of the module grounding line, the other end of the circuit board grounding line is provided with a grounding interface, the circuit board grounding line is provided on a flexible circuit board connected to the module body; the grounding module is electrically connected to the circuit board grounding line, the grounding module is disposed on the flexible circuit board; one end of the circuit board test circuit is electrically connected to the other end of the module grounding line, and the other end of the circuit board testing circuit is provided witha test interface. Since the chip driving interface, the test interface, and the grounding interface are all disposed on the flexible circuit board, the module function tester is easily used for detection, thereby improving the detection efficiency of the display detection circuit.
Owner:TCL DISPLAY TECH HUIZHOU
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products